Source code

001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.camel.blueprint.handler;
018
019import java.io.UnsupportedEncodingException;
020import java.lang.reflect.Field;
021import java.lang.reflect.Method;
022import java.lang.reflect.Modifier;
023import java.net.URI;
024import java.net.URISyntaxException;
025import java.net.URL;
026import java.util.Arrays;
027import java.util.HashSet;
028import java.util.List;
029import java.util.Map;
030import java.util.Set;
031import java.util.concurrent.Callable;
032
033import javax.xml.bind.Binder;
034import javax.xml.bind.JAXBContext;
035import javax.xml.bind.JAXBException;
036
037import org.w3c.dom.Document;
038import org.w3c.dom.Element;
039import org.w3c.dom.NamedNodeMap;
040import org.w3c.dom.Node;
041import org.w3c.dom.NodeList;
042
043import org.apache.aries.blueprint.BeanProcessor;
044import org.apache.aries.blueprint.ComponentDefinitionRegistry;
045import org.apache.aries.blueprint.ComponentDefinitionRegistryProcessor;
046import org.apache.aries.blueprint.NamespaceHandler;
047import org.apache.aries.blueprint.ParserContext;
048import org.apache.aries.blueprint.PassThroughMetadata;
049import org.apache.aries.blueprint.mutable.MutableBeanMetadata;
050import org.apache.aries.blueprint.mutable.MutablePassThroughMetadata;
051import org.apache.aries.blueprint.mutable.MutableRefMetadata;
052import org.apache.aries.blueprint.mutable.MutableReferenceMetadata;
053import org.apache.camel.BeanInject;
054import org.apache.camel.CamelContext;
055import org.apache.camel.Endpoint;
056import org.apache.camel.EndpointInject;
057import org.apache.camel.Produce;
058import org.apache.camel.PropertyInject;
059import org.apache.camel.blueprint.BlueprintCamelContext;
060import org.apache.camel.blueprint.BlueprintCamelStateService;
061import org.apache.camel.blueprint.BlueprintModelJAXBContextFactory;
062import org.apache.camel.blueprint.CamelContextFactoryBean;
063import org.apache.camel.blueprint.CamelEndpointFactoryBean;
064import org.apache.camel.blueprint.CamelRestContextFactoryBean;
065import org.apache.camel.blueprint.CamelRouteContextFactoryBean;
066import org.apache.camel.core.xml.AbstractCamelFactoryBean;
067import org.apache.camel.impl.engine.CamelPostProcessorHelper;
068import org.apache.camel.impl.engine.DefaultCamelContextNameStrategy;
069import org.apache.camel.model.AggregateDefinition;
070import org.apache.camel.model.CatchDefinition;
071import org.apache.camel.model.DataFormatDefinition;
072import org.apache.camel.model.ExpressionNode;
073import org.apache.camel.model.ExpressionSubElementDefinition;
074import org.apache.camel.model.FromDefinition;
075import org.apache.camel.model.MarshalDefinition;
076import org.apache.camel.model.Model;
077import org.apache.camel.model.OnExceptionDefinition;
078import org.apache.camel.model.ProcessorDefinition;
079import org.apache.camel.model.ResequenceDefinition;
080import org.apache.camel.model.RouteDefinition;
081import org.apache.camel.model.SendDefinition;
082import org.apache.camel.model.SortDefinition;
083import org.apache.camel.model.ToDefinition;
084import org.apache.camel.model.ToDynamicDefinition;
085import org.apache.camel.model.UnmarshalDefinition;
086import org.apache.camel.model.WireTapDefinition;
087import org.apache.camel.model.language.ExpressionDefinition;
088import org.apache.camel.model.rest.RestBindingMode;
089import org.apache.camel.model.rest.RestDefinition;
090import org.apache.camel.model.rest.VerbDefinition;
091import org.apache.camel.spi.CamelContextNameStrategy;
092import org.apache.camel.spi.ComponentResolver;
093import org.apache.camel.spi.DataFormatResolver;
094import org.apache.camel.spi.LanguageResolver;
095import org.apache.camel.spi.NamespaceAware;
096import org.apache.camel.spi.PropertiesComponent;
097import org.apache.camel.support.ObjectHelper;
098import org.apache.camel.support.builder.Namespaces;
099import org.apache.camel.support.builder.xml.NamespacesHelper;
100import org.apache.camel.support.jsse.KeyStoreParameters;
101import org.apache.camel.support.jsse.SSLContextParameters;
102import org.apache.camel.support.jsse.SecureRandomParameters;
103import org.apache.camel.util.StringHelper;
104import org.apache.camel.util.URISupport;
105import org.apache.camel.util.blueprint.KeyStoreParametersFactoryBean;
106import org.apache.camel.util.blueprint.SSLContextParametersFactoryBean;
107import org.apache.camel.util.blueprint.SecureRandomParametersFactoryBean;
108import org.osgi.framework.Bundle;
109import org.osgi.service.blueprint.container.BlueprintContainer;
110import org.osgi.service.blueprint.container.ComponentDefinitionException;
111import org.osgi.service.blueprint.reflect.BeanMetadata;
112import org.osgi.service.blueprint.reflect.ComponentMetadata;
113import org.osgi.service.blueprint.reflect.Metadata;
114import org.osgi.service.blueprint.reflect.RefMetadata;
115import org.slf4j.Logger;
116import org.slf4j.LoggerFactory;
117
118import static org.osgi.service.blueprint.reflect.ComponentMetadata.ACTIVATION_LAZY;
119import static org.osgi.service.blueprint.reflect.ServiceReferenceMetadata.AVAILABILITY_MANDATORY;
120import static org.osgi.service.blueprint.reflect.ServiceReferenceMetadata.AVAILABILITY_OPTIONAL;
121
122/**
123 * Camel {@link NamespaceHandler} to parse the Camel related namespaces.
124 */
125public class CamelNamespaceHandler implements NamespaceHandler {
126
127    public static final String BLUEPRINT_NS = "http://camel.apache.org/schema/blueprint";
128    public static final String SPRING_NS = "http://camel.apache.org/schema/spring";
129
130    private static final String CAMEL_CONTEXT = "camelContext";
131    private static final String ROUTE_CONTEXT = "routeContext";
132    private static final String REST_CONTEXT = "restContext";
133    private static final String ENDPOINT = "endpoint";
134    private static final String KEY_STORE_PARAMETERS = "keyStoreParameters";
135    private static final String SECURE_RANDOM_PARAMETERS = "secureRandomParameters";
136    private static final String SSL_CONTEXT_PARAMETERS = "sslContextParameters";
137
138    private static final Logger LOG = LoggerFactory.getLogger(CamelNamespaceHandler.class);
139
140    private JAXBContext jaxbContext;
141
142    /**
143     * Prepares the nodes before parsing.
144     */
145    public static void doBeforeParse(Node node, String fromNamespace, String toNamespace) {
146        if (node.getNodeType() == Node.ELEMENT_NODE) {
147            Document doc = node.getOwnerDocument();
148            if (node.getNamespaceURI().equals(fromNamespace)) {
149                doc.renameNode(node, toNamespace, node.getLocalName());
150            }
151
152            // remove whitespace noise from uri, xxxUri attributes, eg new lines, and tabs etc, which allows end users to format
153            // their Camel routes in more human readable format, but at runtime those attributes must be trimmed
154            // the parser removes most of the noise, but keeps double spaces in the attribute values
155            NamedNodeMap map = node.getAttributes();
156            for (int i = 0; i < map.getLength(); i++) {
157                Node att = map.item(i);
158                if (att.getNodeName().equals("uri") || att.getNodeName().endsWith("Uri")) {
159                    final String value = att.getNodeValue();
160                    String before = StringHelper.before(value, "?");
161                    String after = StringHelper.after(value, "?");
162
163                    if (before != null && after != null) {
164                        // remove all double spaces in the uri parameters
165                        String changed = after.replaceAll("\\s{2,}", "");
166                        if (!after.equals(changed)) {
167                            String newAtr = before.trim() + "?" + changed.trim();
168                            LOG.debug("Removed whitespace noise from attribute {} -> {}", value, newAtr);
169                            att.setNodeValue(newAtr);
170                        }
171                    }
172                }
173            }
174        }
175        NodeList list = node.getChildNodes();
176        for (int i = 0; i < list.getLength(); ++i) {
177            doBeforeParse(list.item(i), fromNamespace, toNamespace);
178        }
179    }
180
181    @Override
182    public URL getSchemaLocation(String namespace) {
183        if (BLUEPRINT_NS.equals(namespace)) {
184            return getClass().getClassLoader().getResource("camel-blueprint.xsd");
185        }
186        return null;
187    }
188
189    @Override
190    @SuppressWarnings({"rawtypes"})
191    public Set<Class> getManagedClasses() {
192        return new HashSet<>(Arrays.asList(BlueprintCamelContext.class));
193    }
194
195    @Override
196    public Metadata parse(Element element, ParserContext context) {
197        LOG.trace("Parsing element {}", element);
198
199        try {
200            // as the camel-core model namespace is Spring we need to rename from blueprint to spring
201            doBeforeParse(element, BLUEPRINT_NS, SPRING_NS);
202
203            if (element.getLocalName().equals(CAMEL_CONTEXT)) {
204                return parseCamelContextNode(element, context);
205            }
206            if (element.getLocalName().equals(ROUTE_CONTEXT)) {
207                return parseRouteContextNode(element, context);
208            }
209            if (element.getLocalName().equals(REST_CONTEXT)) {
210                return parseRestContextNode(element, context);
211            }
212            if (element.getLocalName().equals(ENDPOINT)) {
213                return parseEndpointNode(element, context);
214            }
215            if (element.getLocalName().equals(KEY_STORE_PARAMETERS)) {
216                return parseKeyStoreParametersNode(element, context);
217            }
218            if (element.getLocalName().equals(SECURE_RANDOM_PARAMETERS)) {
219                return parseSecureRandomParametersNode(element, context);
220            }
221            if (element.getLocalName().equals(SSL_CONTEXT_PARAMETERS)) {
222                return parseSSLContextParametersNode(element, context);
223            }
224        } finally {
225            // make sure to rename back so we leave the DOM as-is
226            doBeforeParse(element, SPRING_NS, BLUEPRINT_NS);
227        }
228
229        return null;
230    }
231
232    private Metadata parseCamelContextNode(Element element, ParserContext context) {
233        LOG.trace("Parsing CamelContext {}", element);
234        // Find the id, generate one if needed
235        String contextId = element.getAttribute("id");
236        boolean implicitId = false;
237
238        // let's avoid folks having to explicitly give an ID to a camel context
239        if (org.apache.camel.util.ObjectHelper.isEmpty(contextId)) {
240            // if no explicit id was set then use a default auto generated name
241            CamelContextNameStrategy strategy = new DefaultCamelContextNameStrategy();
242            contextId = strategy.getName();
243            element.setAttributeNS(null, "id", contextId);
244            implicitId = true;
245        }
246
247        // now let's parse the routes with JAXB
248        Binder<Node> binder;
249        try {
250            binder = getJaxbContext().createBinder();
251        } catch (JAXBException e) {
252            throw new ComponentDefinitionException("Failed to create the JAXB binder : " + e, e);
253        }
254        Object value = parseUsingJaxb(element, context, binder);
255        if (!(value instanceof CamelContextFactoryBean)) {
256            throw new ComponentDefinitionException("Expected an instance of " + CamelContextFactoryBean.class);
257        }
258
259        CamelContextFactoryBean ccfb = (CamelContextFactoryBean) value;
260        ccfb.setImplicitId(implicitId);
261
262        MutablePassThroughMetadata factory = context.createMetadata(MutablePassThroughMetadata.class);
263        factory.setId(".camelBlueprint.passThrough." + contextId);
264        factory.setObject(new PassThroughCallable<>(value));
265
266        MutableBeanMetadata factory2 = context.createMetadata(MutableBeanMetadata.class);
267        factory2.setId(".camelBlueprint.factory." + contextId);
268        factory2.setFactoryComponent(factory);
269        factory2.setFactoryMethod("call");
270        factory2.setInitMethod("afterPropertiesSet");
271        factory2.setDestroyMethod("destroy");
272        factory2.addProperty("blueprintContainer", createRef(context, "blueprintContainer"));
273        factory2.addProperty("bundleContext", createRef(context, "blueprintBundleContext"));
274        // We need to add other components which the camel context dependsOn
275        if (org.apache.camel.util.ObjectHelper.isNotEmpty(ccfb.getDependsOn())) {
276            factory2.setDependsOn(Arrays.asList(ccfb.getDependsOn().split(" |,")));
277        }
278        context.getComponentDefinitionRegistry().registerComponentDefinition(factory2);
279
280        MutableBeanMetadata ctx = context.createMetadata(MutableBeanMetadata.class);
281        ctx.setId(contextId);
282        ctx.setRuntimeClass(BlueprintCamelContext.class);
283        ctx.setFactoryComponent(factory2);
284        ctx.setFactoryMethod("getContext");
285        ctx.addProperty("bundleStateService", createRef(context, ".camelBlueprint.bundleStateService"));
286        ctx.setInitMethod("init");
287        ctx.setDestroyMethod("destroy");
288
289        // Register factory beans
290        registerBeans(context, contextId, ccfb.getThreadPools());
291        registerBeans(context, contextId, ccfb.getEndpoints());
292        registerBeans(context, contextId, ccfb.getRedeliveryPolicies());
293        registerBeans(context, contextId, ccfb.getBeansFactory());
294
295        // Register single CamelBundleStateService - shared for all bundles and all Blueprint Camel contexts
296        registerBundleStateService(context);
297
298        // Register processors
299        MutablePassThroughMetadata beanProcessorFactory = context.createMetadata(MutablePassThroughMetadata.class);
300        beanProcessorFactory.setId(".camelBlueprint.processor.bean.passThrough." + contextId);
301        beanProcessorFactory.setObject(new PassThroughCallable<Object>(new CamelInjector(contextId)));
302
303        MutableBeanMetadata beanProcessor = context.createMetadata(MutableBeanMetadata.class);
304        beanProcessor.setId(".camelBlueprint.processor.bean." + contextId);
305        beanProcessor.setRuntimeClass(CamelInjector.class);
306        beanProcessor.setFactoryComponent(beanProcessorFactory);
307        beanProcessor.setFactoryMethod("call");
308        beanProcessor.setProcessor(true);
309        beanProcessor.addProperty("blueprintContainer", createRef(context, "blueprintContainer"));
310        context.getComponentDefinitionRegistry().registerComponentDefinition(beanProcessor);
311
312        MutablePassThroughMetadata regProcessorFactory = context.createMetadata(MutablePassThroughMetadata.class);
313        regProcessorFactory.setId(".camelBlueprint.processor.registry.passThrough." + contextId);
314        regProcessorFactory.setObject(new PassThroughCallable<Object>(new CamelDependenciesFinder(contextId, context)));
315
316        MutableBeanMetadata regProcessor = context.createMetadata(MutableBeanMetadata.class);
317        regProcessor.setId(".camelBlueprint.processor.registry." + contextId);
318        regProcessor.setRuntimeClass(CamelDependenciesFinder.class);
319        regProcessor.setFactoryComponent(regProcessorFactory);
320        regProcessor.setFactoryMethod("call");
321        regProcessor.setProcessor(true);
322        regProcessor.addDependsOn(".camelBlueprint.processor.bean." + contextId);
323        regProcessor.addProperty("blueprintContainer", createRef(context, "blueprintContainer"));
324        context.getComponentDefinitionRegistry().registerComponentDefinition(regProcessor);
325
326        // lets inject the namespaces into any namespace aware POJOs
327        injectNamespaces(element, binder);
328
329        LOG.trace("Parsing CamelContext done, returning {}", ctx);
330        return ctx;
331    }
332
333    protected void injectNamespaces(Element element, Binder<Node> binder) {
334        NodeList list = element.getChildNodes();
335        Namespaces namespaces = null;
336        int size = list.getLength();
337        for (int i = 0; i < size; i++) {
338            Node child = list.item(i);
339            if (child instanceof Element) {
340                Element childElement = (Element) child;
341                Object object = binder.getJAXBNode(child);
342                if (object instanceof NamespaceAware) {
343                    NamespaceAware namespaceAware = (NamespaceAware) object;
344                    if (namespaces == null) {
345                        namespaces = NamespacesHelper.namespaces(element);
346                    }
347                    namespaces.configure(namespaceAware);
348                }
349                injectNamespaces(childElement, binder);
350            }
351        }
352    }
353
354    private Metadata parseRouteContextNode(Element element, ParserContext context) {
355        LOG.trace("Parsing RouteContext {}", element);
356        // now parse the routes with JAXB
357        Binder<Node> binder;
358        try {
359            binder = getJaxbContext().createBinder();
360        } catch (JAXBException e) {
361
362            throw new ComponentDefinitionException("Failed to create the JAXB binder : " + e, e);
363        }
364        Object value = parseUsingJaxb(element, context, binder);
365        if (!(value instanceof CamelRouteContextFactoryBean)) {
366            throw new ComponentDefinitionException("Expected an instance of " + CamelRouteContextFactoryBean.class);
367        }
368
369        CamelRouteContextFactoryBean rcfb = (CamelRouteContextFactoryBean) value;
370        String id = rcfb.getId();
371
372        MutablePassThroughMetadata factory = context.createMetadata(MutablePassThroughMetadata.class);
373        factory.setId(".camelBlueprint.passThrough." + id);
374        factory.setObject(new PassThroughCallable<Object>(rcfb));
375
376        MutableBeanMetadata factory2 = context.createMetadata(MutableBeanMetadata.class);
377        factory2.setId(".camelBlueprint.factory." + id);
378        factory2.setFactoryComponent(factory);
379        factory2.setFactoryMethod("call");
380
381        MutableBeanMetadata ctx = context.createMetadata(MutableBeanMetadata.class);
382        ctx.setId(id);
383        ctx.setRuntimeClass(List.class);
384        ctx.setFactoryComponent(factory2);
385        ctx.setFactoryMethod("getRoutes");
386        // must be lazy as we want CamelContext to be activated first
387        ctx.setActivation(ACTIVATION_LAZY);
388
389        // lets inject the namespaces into any namespace aware POJOs
390        injectNamespaces(element, binder);
391
392        LOG.trace("Parsing RouteContext {} done, returning {}", element, ctx);
393        return ctx;
394    }
395
396    private Metadata parseRestContextNode(Element element, ParserContext context) {
397        LOG.trace("Parsing RestContext {}", element);
398        // now parse the rests with JAXB
399        Binder<Node> binder;
400        try {
401            binder = getJaxbContext().createBinder();
402        } catch (JAXBException e) {
403            throw new ComponentDefinitionException("Failed to create the JAXB binder : " + e, e);
404        }
405        Object value = parseUsingJaxb(element, context, binder);
406        if (!(value instanceof CamelRestContextFactoryBean)) {
407            throw new ComponentDefinitionException("Expected an instance of " + CamelRestContextFactoryBean.class);
408        }
409
410        CamelRestContextFactoryBean rcfb = (CamelRestContextFactoryBean) value;
411        String id = rcfb.getId();
412
413        MutablePassThroughMetadata factory = context.createMetadata(MutablePassThroughMetadata.class);
414        factory.setId(".camelBlueprint.passThrough." + id);
415        factory.setObject(new PassThroughCallable<Object>(rcfb));
416
417        MutableBeanMetadata factory2 = context.createMetadata(MutableBeanMetadata.class);
418        factory2.setId(".camelBlueprint.factory." + id);
419        factory2.setFactoryComponent(factory);
420        factory2.setFactoryMethod("call");
421
422        MutableBeanMetadata ctx = context.createMetadata(MutableBeanMetadata.class);
423        ctx.setId(id);
424        ctx.setRuntimeClass(List.class);
425        ctx.setFactoryComponent(factory2);
426        ctx.setFactoryMethod("getRests");
427        // must be lazy as we want CamelContext to be activated first
428        ctx.setActivation(ACTIVATION_LAZY);
429
430        // lets inject the namespaces into any namespace aware POJOs
431        injectNamespaces(element, binder);
432
433        LOG.trace("Parsing RestContext {} done, returning {}", element, ctx);
434        return ctx;
435    }
436
437    private Metadata parseEndpointNode(Element element, ParserContext context) {
438        LOG.trace("Parsing Endpoint {}", element);
439        // now parse the rests with JAXB
440        Binder<Node> binder;
441        try {
442            binder = getJaxbContext().createBinder();
443        } catch (JAXBException e) {
444            throw new ComponentDefinitionException("Failed to create the JAXB binder : " + e, e);
445        }
446        Object value = parseUsingJaxb(element, context, binder);
447        if (!(value instanceof CamelEndpointFactoryBean)) {
448            throw new ComponentDefinitionException("Expected an instance of " + CamelEndpointFactoryBean.class);
449        }
450
451        CamelEndpointFactoryBean rcfb = (CamelEndpointFactoryBean) value;
452        String id = rcfb.getId();
453
454        MutablePassThroughMetadata factory = context.createMetadata(MutablePassThroughMetadata.class);
455        factory.setId(".camelBlueprint.passThrough." + id);
456        factory.setObject(new PassThroughCallable<Object>(rcfb));
457
458        MutableBeanMetadata factory2 = context.createMetadata(MutableBeanMetadata.class);
459        factory2.setId(".camelBlueprint.factory." + id);
460        factory2.setFactoryComponent(factory);
461        factory2.setFactoryMethod("call");
462        factory2.setInitMethod("afterPropertiesSet");
463        factory2.setDestroyMethod("destroy");
464        factory2.addProperty("blueprintContainer", createRef(context, "blueprintContainer"));
465
466        MutableBeanMetadata ctx = context.createMetadata(MutableBeanMetadata.class);
467        ctx.setId(id);
468        ctx.setRuntimeClass(Endpoint.class);
469        ctx.setFactoryComponent(factory2);
470        ctx.setFactoryMethod("getObject");
471        // must be lazy as we want CamelContext to be activated first
472        ctx.setActivation(ACTIVATION_LAZY);
473
474        LOG.trace("Parsing endpoint {} done, returning {}", element, ctx);
475        return ctx;
476    }
477
478    private Metadata parseKeyStoreParametersNode(Element element, ParserContext context) {
479        LOG.trace("Parsing KeyStoreParameters {}", element);
480        // now parse the key store parameters with JAXB
481        Binder<Node> binder;
482        try {
483            binder = getJaxbContext().createBinder();
484        } catch (JAXBException e) {
485            throw new ComponentDefinitionException("Failed to create the JAXB binder : " + e, e);
486        }
487        Object value = parseUsingJaxb(element, context, binder);
488        if (!(value instanceof KeyStoreParametersFactoryBean)) {
489            throw new ComponentDefinitionException("Expected an instance of " + KeyStoreParametersFactoryBean.class);
490        }
491
492        KeyStoreParametersFactoryBean kspfb = (KeyStoreParametersFactoryBean) value;
493        String id = kspfb.getId();
494
495        MutablePassThroughMetadata factory = context.createMetadata(MutablePassThroughMetadata.class);
496        factory.setId(".camelBlueprint.passThrough." + id);
497        factory.setObject(new PassThroughCallable<Object>(kspfb));
498
499        MutableBeanMetadata factory2 = context.createMetadata(MutableBeanMetadata.class);
500        factory2.setId(".camelBlueprint.factory." + id);
501        factory2.setFactoryComponent(factory);
502        factory2.setFactoryMethod("call");
503        factory2.setInitMethod("afterPropertiesSet");
504        factory2.setDestroyMethod("destroy");
505        factory2.addProperty("blueprintContainer", createRef(context, "blueprintContainer"));
506
507        MutableBeanMetadata ctx = context.createMetadata(MutableBeanMetadata.class);
508        ctx.setId(id);
509        ctx.setRuntimeClass(KeyStoreParameters.class);
510        ctx.setFactoryComponent(factory2);
511        ctx.setFactoryMethod("getObject");
512        // must be lazy as we want CamelContext to be activated first
513        ctx.setActivation(ACTIVATION_LAZY);
514
515        LOG.trace("Parsing KeyStoreParameters done, returning {}", ctx);
516        return ctx;
517    }
518
519    private Metadata parseSecureRandomParametersNode(Element element, ParserContext context) {
520        LOG.trace("Parsing SecureRandomParameters {}", element);
521        // now parse the key store parameters with JAXB
522        Binder<Node> binder;
523        try {
524            binder = getJaxbContext().createBinder();
525        } catch (JAXBException e) {
526            throw new ComponentDefinitionException("Failed to create the JAXB binder : " + e, e);
527        }
528        Object value = parseUsingJaxb(element, context, binder);
529        if (!(value instanceof SecureRandomParametersFactoryBean)) {
530            throw new ComponentDefinitionException("Expected an instance of " + SecureRandomParametersFactoryBean.class);
531        }
532
533        SecureRandomParametersFactoryBean srfb = (SecureRandomParametersFactoryBean) value;
534        String id = srfb.getId();
535
536        MutablePassThroughMetadata factory = context.createMetadata(MutablePassThroughMetadata.class);
537        factory.setId(".camelBlueprint.passThrough." + id);
538        factory.setObject(new PassThroughCallable<Object>(srfb));
539
540        MutableBeanMetadata factory2 = context.createMetadata(MutableBeanMetadata.class);
541        factory2.setId(".camelBlueprint.factory." + id);
542        factory2.setFactoryComponent(factory);
543        factory2.setFactoryMethod("call");
544        factory2.setInitMethod("afterPropertiesSet");
545        factory2.setDestroyMethod("destroy");
546        factory2.addProperty("blueprintContainer", createRef(context, "blueprintContainer"));
547
548        MutableBeanMetadata ctx = context.createMetadata(MutableBeanMetadata.class);
549        ctx.setId(id);
550        ctx.setRuntimeClass(SecureRandomParameters.class);
551        ctx.setFactoryComponent(factory2);
552        ctx.setFactoryMethod("getObject");
553        // must be lazy as we want CamelContext to be activated first
554        ctx.setActivation(ACTIVATION_LAZY);
555
556        LOG.trace("Parsing SecureRandomParameters done, returning {}", ctx);
557        return ctx;
558    }
559
560    private Metadata parseSSLContextParametersNode(Element element, ParserContext context) {
561        LOG.trace("Parsing SSLContextParameters {}", element);
562        // now parse the key store parameters with JAXB
563        Binder<Node> binder;
564        try {
565            binder = getJaxbContext().createBinder();
566        } catch (JAXBException e) {
567            throw new ComponentDefinitionException("Failed to create the JAXB binder : " + e, e);
568        }
569        Object value = parseUsingJaxb(element, context, binder);
570        if (!(value instanceof SSLContextParametersFactoryBean)) {
571            throw new ComponentDefinitionException("Expected an instance of " + SSLContextParametersFactoryBean.class);
572        }
573
574        SSLContextParametersFactoryBean scpfb = (SSLContextParametersFactoryBean) value;
575        String id = scpfb.getId();
576
577        MutablePassThroughMetadata factory = context.createMetadata(MutablePassThroughMetadata.class);
578        factory.setId(".camelBlueprint.passThrough." + id);
579        factory.setObject(new PassThroughCallable<Object>(scpfb));
580
581        MutableBeanMetadata factory2 = context.createMetadata(MutableBeanMetadata.class);
582        factory2.setId(".camelBlueprint.factory." + id);
583        factory2.setFactoryComponent(factory);
584        factory2.setFactoryMethod("call");
585        factory2.setInitMethod("afterPropertiesSet");
586        factory2.setDestroyMethod("destroy");
587        factory2.addProperty("blueprintContainer", createRef(context, "blueprintContainer"));
588
589        MutableBeanMetadata ctx = context.createMetadata(MutableBeanMetadata.class);
590        ctx.setId(id);
591        ctx.setRuntimeClass(SSLContextParameters.class);
592        ctx.setFactoryComponent(factory2);
593        ctx.setFactoryMethod("getObject");
594        // must be lazy as we want CamelContext to be activated first
595        ctx.setActivation(ACTIVATION_LAZY);
596
597        LOG.trace("Parsing SSLContextParameters done, returning {}", ctx);
598        return ctx;
599    }
600
601    private void registerBeans(ParserContext context, String contextId, List<?> beans) {
602        if (beans != null) {
603            for (Object bean : beans) {
604                if (bean instanceof AbstractCamelFactoryBean) {
605                    registerBean(context, contextId, (AbstractCamelFactoryBean<?>) bean);
606                }
607            }
608        }
609    }
610
611    protected void registerBean(ParserContext context, String contextId, AbstractCamelFactoryBean<?> fact) {
612        String id = fact.getId();
613
614        fact.setCamelContextId(contextId);
615
616        MutablePassThroughMetadata eff = context.createMetadata(MutablePassThroughMetadata.class);
617        eff.setId(".camelBlueprint.bean.passthrough." + id);
618        eff.setObject(new PassThroughCallable<Object>(fact));
619
620        MutableBeanMetadata ef = context.createMetadata(MutableBeanMetadata.class);
621        ef.setId(".camelBlueprint.bean.factory." + id);
622        ef.setFactoryComponent(eff);
623        ef.setFactoryMethod("call");
624        ef.addProperty("blueprintContainer", createRef(context, "blueprintContainer"));
625        ef.setInitMethod("afterPropertiesSet");
626        ef.setDestroyMethod("destroy");
627
628        MutableBeanMetadata e = context.createMetadata(MutableBeanMetadata.class);
629        e.setId(id);
630        e.setRuntimeClass(fact.getObjectType());
631        e.setFactoryComponent(ef);
632        e.setFactoryMethod("getObject");
633        e.addDependsOn(".camelBlueprint.processor.bean." + contextId);
634
635        context.getComponentDefinitionRegistry().registerComponentDefinition(e);
636    }
637
638    /**
639     * There's single instance of {@link BlueprintCamelStateService} that's used by all Blueprint Camel contexts
640     * to inform about state of Camel contexts. If Karaf is available, this information will propagate to
641     * <em>extended bundle info</em>.
642     * See CAMEL-12980
643     */
644    private void registerBundleStateService(ParserContext context) {
645        ComponentDefinitionRegistry componentDefinitionRegistry = context.getComponentDefinitionRegistry();
646        ComponentMetadata cm = componentDefinitionRegistry.getComponentDefinition(".camelBlueprint.bundleStateService");
647        if (cm == null) {
648            MutableBeanMetadata ssm = context.createMetadata(MutableBeanMetadata.class);
649            ssm.setId(".camelBlueprint.bundleStateService");
650            ssm.setRuntimeClass(BlueprintCamelStateService.class);
651            ssm.addProperty("bundleContext", createRef(context, "blueprintBundleContext"));
652            ssm.setInitMethod("init");
653            ssm.setDestroyMethod("destroy");
654            componentDefinitionRegistry.registerComponentDefinition(ssm);
655        }
656    }
657
658    protected BlueprintContainer getBlueprintContainer(ParserContext context) {
659        PassThroughMetadata ptm = (PassThroughMetadata) context.getComponentDefinitionRegistry().getComponentDefinition("blueprintContainer");
660        return (BlueprintContainer) ptm.getObject();
661    }
662
663    @Override
664    public ComponentMetadata decorate(Node node, ComponentMetadata component, ParserContext context) {
665        return null;
666    }
667
668    protected Object parseUsingJaxb(Element element, ParserContext parserContext, Binder<Node> binder) {
669        try {
670            return binder.unmarshal(element);
671        } catch (JAXBException e) {
672            throw new ComponentDefinitionException("Failed to parse JAXB element: " + e, e);
673        }
674    }
675
676    public JAXBContext getJaxbContext() throws JAXBException {
677        if (jaxbContext == null) {
678            jaxbContext = new BlueprintModelJAXBContextFactory(getClass().getClassLoader()).newJAXBContext();
679        }
680        return jaxbContext;
681    }
682
683    private RefMetadata createRef(ParserContext context, String value) {
684        MutableRefMetadata r = context.createMetadata(MutableRefMetadata.class);
685        r.setComponentId(value);
686        return r;
687    }
688
689    private static ComponentMetadata getDataformatResolverReference(ParserContext context, String dataformat) {
690        // we cannot resolve dataformat names using property placeholders at this point in time
691        if (dataformat.startsWith(PropertiesComponent.PREFIX_TOKEN)) {
692            return null;
693        }
694        ComponentDefinitionRegistry componentDefinitionRegistry = context.getComponentDefinitionRegistry();
695        ComponentMetadata cm = componentDefinitionRegistry.getComponentDefinition(".camelBlueprint.dataformatResolver." + dataformat);
696        if (cm == null) {
697            MutableReferenceMetadata svc = context.createMetadata(MutableReferenceMetadata.class);
698            svc.setId(".camelBlueprint.dataformatResolver." + dataformat);
699            svc.setFilter("(dataformat=" + dataformat + ")");
700            svc.setAvailability(componentDefinitionRegistry.containsComponentDefinition(dataformat) ? AVAILABILITY_OPTIONAL : AVAILABILITY_MANDATORY);
701            try {
702                // Try to set the runtime interface (only with aries blueprint > 0.1
703                svc.getClass().getMethod("setRuntimeInterface", Class.class).invoke(svc, DataFormatResolver.class);
704            } catch (Throwable t) {
705                // Check if the bundle can see the class
706                try {
707                    PassThroughMetadata ptm = (PassThroughMetadata) componentDefinitionRegistry.getComponentDefinition("blueprintBundle");
708                    Bundle b = (Bundle) ptm.getObject();
709                    if (b.loadClass(DataFormatResolver.class.getName()) != DataFormatResolver.class) {
710                        throw new UnsupportedOperationException();
711                    }
712                    svc.setInterface(DataFormatResolver.class.getName());
713                } catch (Throwable t2) {
714                    throw new UnsupportedOperationException();
715                }
716            }
717            componentDefinitionRegistry.registerComponentDefinition(svc);
718            cm = svc;
719        }
720        return cm;
721    }
722
723    private static ComponentMetadata getLanguageResolverReference(ParserContext context, String language) {
724        // we cannot resolve language names using property placeholders at this point in time
725        if (language.startsWith(PropertiesComponent.PREFIX_TOKEN)) {
726            return null;
727        }
728        ComponentDefinitionRegistry componentDefinitionRegistry = context.getComponentDefinitionRegistry();
729        ComponentMetadata cm = componentDefinitionRegistry.getComponentDefinition(".camelBlueprint.languageResolver." + language);
730        if (cm == null) {
731            MutableReferenceMetadata svc = context.createMetadata(MutableReferenceMetadata.class);
732            svc.setId(".camelBlueprint.languageResolver." + language);
733            svc.setFilter("(language=" + language + ")");
734            svc.setAvailability(componentDefinitionRegistry.containsComponentDefinition(language) ? AVAILABILITY_OPTIONAL : AVAILABILITY_MANDATORY);
735            try {
736                // Try to set the runtime interface (only with aries blueprint > 0.1
737                svc.getClass().getMethod("setRuntimeInterface", Class.class).invoke(svc, LanguageResolver.class);
738            } catch (Throwable t) {
739                // Check if the bundle can see the class
740                try {
741                    PassThroughMetadata ptm = (PassThroughMetadata) componentDefinitionRegistry.getComponentDefinition("blueprintBundle");
742                    Bundle b = (Bundle) ptm.getObject();
743                    if (b.loadClass(LanguageResolver.class.getName()) != LanguageResolver.class) {
744                        throw new UnsupportedOperationException();
745                    }
746                    svc.setInterface(LanguageResolver.class.getName());
747                } catch (Throwable t2) {
748                    throw new UnsupportedOperationException();
749                }
750            }
751            componentDefinitionRegistry.registerComponentDefinition(svc);
752            cm = svc;
753        }
754        return cm;
755    }
756
757    private static ComponentMetadata getComponentResolverReference(ParserContext context, String component) {
758        // we cannot resolve component names using property placeholders at this point in time
759        if (component.startsWith(PropertiesComponent.PREFIX_TOKEN)) {
760            return null;
761        }
762        ComponentDefinitionRegistry componentDefinitionRegistry = context.getComponentDefinitionRegistry();
763        ComponentMetadata cm = componentDefinitionRegistry.getComponentDefinition(".camelBlueprint.componentResolver." + component);
764        if (cm == null) {
765            MutableReferenceMetadata svc = context.createMetadata(MutableReferenceMetadata.class);
766            svc.setId(".camelBlueprint.componentResolver." + component);
767            svc.setFilter("(component=" + component + ")");
768            svc.setAvailability(componentDefinitionRegistry.containsComponentDefinition(component) ? AVAILABILITY_OPTIONAL : AVAILABILITY_MANDATORY);
769            try {
770                // Try to set the runtime interface (only with aries blueprint > 0.1
771                svc.getClass().getMethod("setRuntimeInterface", Class.class).invoke(svc, ComponentResolver.class);
772            } catch (Throwable t) {
773                // Check if the bundle can see the class
774                try {
775                    PassThroughMetadata ptm = (PassThroughMetadata) componentDefinitionRegistry.getComponentDefinition("blueprintBundle");
776                    Bundle b = (Bundle) ptm.getObject();
777                    if (b.loadClass(ComponentResolver.class.getName()) != ComponentResolver.class) {
778                        throw new UnsupportedOperationException();
779                    }
780                    svc.setInterface(ComponentResolver.class.getName());
781                } catch (Throwable t2) {
782                    throw new UnsupportedOperationException();
783                }
784            }
785            componentDefinitionRegistry.registerComponentDefinition(svc);
786            cm = svc;
787        }
788        return cm;
789    }
790
791    public static class PassThroughCallable<T> implements Callable<T> {
792
793        private T value;
794
795        public PassThroughCallable(T value) {
796            this.value = value;
797        }
798
799        @Override
800        public T call() throws Exception {
801            return value;
802        }
803    }
804
805    public static class CamelInjector extends CamelPostProcessorHelper implements BeanProcessor {
806
807        private final String camelContextName;
808        private BlueprintContainer blueprintContainer;
809
810        public CamelInjector(String camelContextName) {
811            this.camelContextName = camelContextName;
812        }
813
814        public void setBlueprintContainer(BlueprintContainer blueprintContainer) {
815            this.blueprintContainer = blueprintContainer;
816        }
817
818        @Override
819        public CamelContext getCamelContext() {
820            if (blueprintContainer != null) {
821                CamelContext answer = (CamelContext) blueprintContainer.getComponentInstance(camelContextName);
822                return answer;
823            }
824            return null;
825        }
826
827        @Override
828        public Object beforeInit(Object bean, String beanName, BeanCreator beanCreator, BeanMetadata beanMetadata) {
829            LOG.trace("Before init of bean: {} -> {}", beanName, bean);
830            // prefer to inject later in afterInit
831            return bean;
832        }
833
834        /**
835         * A strategy method to allow implementations to perform some custom JBI
836         * based injection of the POJO
837         *
838         * @param bean the bean to be injected
839         */
840        protected void injectFields(final Object bean, final String beanName) {
841            Class<?> clazz = bean.getClass();
842            do {
843                Field[] fields = clazz.getDeclaredFields();
844                for (Field field : fields) {
845                    PropertyInject propertyInject = field.getAnnotation(PropertyInject.class);
846                    if (propertyInject != null) {
847                        injectFieldProperty(field, propertyInject.value(), propertyInject.defaultValue(), bean, beanName);
848                    }
849
850                    BeanInject beanInject = field.getAnnotation(BeanInject.class);
851                    if (beanInject != null) {
852                        injectFieldBean(field, beanInject.value(), bean, beanName);
853                    }
854
855                    EndpointInject endpointInject = field.getAnnotation(EndpointInject.class);
856                    if (endpointInject != null) {
857                        String uri = endpointInject.value().isEmpty() ? endpointInject.uri() : endpointInject.value();
858                        injectField(field, uri, endpointInject.property(), bean, beanName);
859                    }
860
861                    Produce produce = field.getAnnotation(Produce.class);
862                    if (produce != null) {
863                        String uri = produce.value().isEmpty() ? produce.uri() : produce.value();
864                        injectField(field, uri, produce.property(), bean, beanName);
865                    }
866                }
867                clazz = clazz.getSuperclass();
868            } while (clazz != null && clazz != Object.class);
869        }
870
871        protected void injectField(Field field, String endpointUri, String endpointProperty, Object bean, String beanName) {
872            setField(field, bean, getInjectionValue(field.getType(), endpointUri, endpointProperty, field.getName(), bean, beanName));
873        }
874
875        protected void injectFieldProperty(Field field, String propertyName, String propertyDefaultValue, Object bean, String beanName) {
876            setField(field, bean, getInjectionPropertyValue(field.getType(), propertyName, propertyDefaultValue, field.getName(), bean, beanName));
877        }
878
879        public void injectFieldBean(Field field, String name, Object bean, String beanName) {
880            setField(field, bean, getInjectionBeanValue(field.getType(), name));
881        }
882
883        protected static void setField(Field field, Object instance, Object value) {
884            try {
885                boolean oldAccessible = field.isAccessible();
886                boolean shouldSetAccessible = !Modifier.isPublic(field.getModifiers()) && !oldAccessible;
887                if (shouldSetAccessible) {
888                    field.setAccessible(true);
889                }
890                field.set(instance, value);
891                if (shouldSetAccessible) {
892                    field.setAccessible(oldAccessible);
893                }
894            } catch (IllegalArgumentException ex) {
895                throw new UnsupportedOperationException("Cannot inject value of class: " + value.getClass() + " into: " + field);
896            } catch (IllegalAccessException ex) {
897                throw new IllegalStateException("Could not access method: " + ex.getMessage());
898            }
899        }
900
901        protected void injectMethods(final Object bean, final String beanName) {
902            Class<?> clazz = bean.getClass();
903            do {
904                Method[] methods = clazz.getDeclaredMethods();
905                for (Method method : methods) {
906                    setterInjection(method, bean, beanName);
907                    consumerInjection(method, bean, beanName);
908                }
909                clazz = clazz.getSuperclass();
910            } while (clazz != null && clazz != Object.class);
911        }
912
913        protected void setterInjection(Method method, Object bean, String beanName) {
914            PropertyInject propertyInject = method.getAnnotation(PropertyInject.class);
915            if (propertyInject != null) {
916                setterPropertyInjection(method, propertyInject.value(), propertyInject.defaultValue(), bean, beanName);
917            }
918
919            BeanInject beanInject = method.getAnnotation(BeanInject.class);
920            if (beanInject != null) {
921                setterBeanInjection(method, beanInject.value(), bean, beanName);
922            }
923
924            EndpointInject endpointInject = method.getAnnotation(EndpointInject.class);
925            if (endpointInject != null) {
926                String uri = endpointInject.value().isEmpty() ? endpointInject.uri() : endpointInject.value();
927                setterInjection(method, bean, beanName, uri, endpointInject.property());
928            }
929
930            Produce produce = method.getAnnotation(Produce.class);
931            if (produce != null) {
932                String uri = produce.value().isEmpty() ? produce.uri() : produce.value();
933                setterInjection(method, bean, beanName, uri, produce.property());
934            }
935        }
936
937        protected void setterPropertyInjection(Method method, String propertyValue, String propertyDefaultValue, Object bean, String beanName) {
938            Class<?>[] parameterTypes = method.getParameterTypes();
939            if (parameterTypes.length != 1) {
940                LOG.warn("Ignoring badly annotated method for injection due to incorrect number of parameters: {}", method);
941            } else {
942                String propertyName = org.apache.camel.util.ObjectHelper.getPropertyName(method);
943                Object value = getInjectionPropertyValue(parameterTypes[0], propertyValue, propertyDefaultValue, propertyName, bean, beanName);
944                ObjectHelper.invokeMethod(method, bean, value);
945            }
946        }
947
948        protected void setterBeanInjection(Method method, String name, Object bean, String beanName) {
949            Class<?>[] parameterTypes = method.getParameterTypes();
950            if (parameterTypes.length != 1) {
951                LOG.warn("Ignoring badly annotated method for injection due to incorrect number of parameters: {}", method);
952            } else {
953                Object value = getInjectionBeanValue(parameterTypes[0], name);
954                ObjectHelper.invokeMethod(method, bean, value);
955            }
956        }
957
958        protected void setterInjection(Method method, Object bean, String beanName, String endpointUri, String endpointProperty) {
959            Class<?>[] parameterTypes = method.getParameterTypes();
960            if (parameterTypes.length != 1) {
961                LOG.warn("Ignoring badly annotated method for injection due to incorrect number of parameters: {}", method);
962            } else {
963                String propertyName = org.apache.camel.util.ObjectHelper.getPropertyName(method);
964                Object value = getInjectionValue(parameterTypes[0], endpointUri, endpointProperty, propertyName, bean, beanName);
965                ObjectHelper.invokeMethod(method, bean, value);
966            }
967        }
968
969        @Override
970        public Object afterInit(Object bean, String beanName, BeanCreator beanCreator, BeanMetadata beanMetadata) {
971            LOG.trace("After init of bean: {} -> {}", beanName, bean);
972            // we cannot inject CamelContextAware beans as the CamelContext may not be ready
973            // TODO: use bean post processor instead
974            injectFields(bean, beanName);
975            injectMethods(bean, beanName);
976            return bean;
977        }
978
979        @Override
980        public void beforeDestroy(Object bean, String beanName) {
981        }
982
983        @Override
984        public void afterDestroy(Object bean, String beanName) {
985        }
986
987        @Override
988        protected boolean isSingleton(Object bean, String beanName) {
989            if (beanName != null) {
990                ComponentMetadata meta = blueprintContainer.getComponentMetadata(beanName);
991                if (meta instanceof BeanMetadata) {
992                    String scope = ((BeanMetadata) meta).getScope();
993                    if (scope != null) {
994                        return BeanMetadata.SCOPE_SINGLETON.equals(scope);
995                    }
996                }
997            }
998            // fallback to super, which will assume singleton
999            // for beans not implementing Camel's IsSingleton interface
1000            return super.isSingleton(bean, beanName);
1001        }
1002    }
1003
1004    public static class CamelDependenciesFinder implements ComponentDefinitionRegistryProcessor {
1005
1006        private final String camelContextName;
1007        private final ParserContext context;
1008        private BlueprintContainer blueprintContainer;
1009
1010        public CamelDependenciesFinder(String camelContextName, ParserContext context) {
1011            this.camelContextName = camelContextName;
1012            this.context = context;
1013        }
1014
1015        public void setBlueprintContainer(BlueprintContainer blueprintContainer) {
1016            this.blueprintContainer = blueprintContainer;
1017        }
1018
1019        @Override
1020        public void process(ComponentDefinitionRegistry componentDefinitionRegistry) {
1021            CamelContextFactoryBean ccfb = (CamelContextFactoryBean) blueprintContainer.getComponentInstance(".camelBlueprint.factory." + camelContextName);
1022            CamelContext camelContext = ccfb.getContext();
1023
1024            Set<String> components = new HashSet<>();
1025            Set<String> languages = new HashSet<>();
1026            Set<String> dataformats = new HashSet<>();
1027
1028            // regular camel routes
1029            for (RouteDefinition rd : camelContext.getExtension(Model.class).getRouteDefinitions()) {
1030                findInputComponents(rd.getInput(), components, languages, dataformats);
1031                findOutputComponents(rd.getOutputs(), components, languages, dataformats);
1032            }
1033
1034            // rest services can have embedded routes or a singular to
1035            for (RestDefinition rd : camelContext.getExtension(Model.class).getRestDefinitions()) {
1036                for (VerbDefinition vd : rd.getVerbs()) {
1037                    Object o = vd.getToOrRoute();
1038                    if (o instanceof RouteDefinition) {
1039                        RouteDefinition route = (RouteDefinition) o;
1040                        findInputComponents(route.getInput(), components, languages, dataformats);
1041                        findOutputComponents(route.getOutputs(), components, languages, dataformats);
1042                    } else if (o instanceof ToDefinition) {
1043                        findUriComponent(((ToDefinition) o).getUri(), components);
1044                    } else if (o instanceof ToDynamicDefinition) {
1045                        findUriComponent(((ToDynamicDefinition) o).getUri(), components);
1046                    }
1047                }
1048            }
1049
1050            if (ccfb.getRestConfiguration() != null) {
1051                // rest configuration may refer to a component to use
1052                String component = ccfb.getRestConfiguration().getComponent();
1053                if (component != null) {
1054                    components.add(component);
1055                }
1056                component = ccfb.getRestConfiguration().getApiComponent();
1057                if (component != null) {
1058                    components.add(component);
1059                }
1060
1061                // check what data formats are used in binding mode
1062                RestBindingMode mode = ccfb.getRestConfiguration().getBindingMode();
1063                String json = ccfb.getRestConfiguration().getJsonDataFormat();
1064                if (json == null && mode != null) {
1065                    if (RestBindingMode.json.equals(mode) || RestBindingMode.json_xml.equals(mode)) {
1066                        // jackson is the default json data format
1067                        json = "json-jackson";
1068                    }
1069                }
1070                if (json != null) {
1071                    dataformats.add(json);
1072                }
1073                String xml = ccfb.getRestConfiguration().getXmlDataFormat();
1074                if (xml == null && mode != null) {
1075                    if (RestBindingMode.xml.equals(mode) || RestBindingMode.json_xml.equals(mode)) {
1076                        // jaxb is the default xml data format
1077                        dataformats.add("jaxb");
1078                    }
1079                }
1080                if (xml != null) {
1081                    dataformats.add(xml);
1082                }
1083            }
1084
1085            // We can only add service references to resolvers, but we can't make the factory depends on those
1086            // because the factory has already been instantiated
1087            try {
1088                for (String component : components) {
1089                    if (camelContext.getComponent(component, false) == null) {
1090                        // component not already in camel-context so resolve an OSGi reference to it
1091                        getComponentResolverReference(context, component);
1092                    } else {
1093                        LOG.debug("Not creating a service reference for component {} because a component already exists in the Camel Context", component);
1094                    }
1095                }
1096                for (String language : languages) {
1097                    getLanguageResolverReference(context, language);
1098                }
1099                for (String dataformat : dataformats) {
1100                    getDataformatResolverReference(context, dataformat);
1101                }
1102            } catch (UnsupportedOperationException e) {
1103                LOG.warn("Unable to add dependencies to Camel components OSGi services. "
1104                    + "The Apache Aries blueprint implementation used is too old and the blueprint bundle cannot see the org.apache.camel.spi package.");
1105                components.clear();
1106                languages.clear();
1107                dataformats.clear();
1108            }
1109
1110        }
1111
1112        private void findInputComponents(FromDefinition from, Set<String> components, Set<String> languages, Set<String> dataformats) {
1113            if (from != null) {
1114                findUriComponent(from.getUri(), components);
1115                findSchedulerUriComponent(from.getUri(), components);
1116            }
1117        }
1118
1119        @SuppressWarnings({"rawtypes"})
1120        private void findOutputComponents(List<ProcessorDefinition<?>> defs, Set<String> components, Set<String> languages, Set<String> dataformats) {
1121            if (defs != null) {
1122                for (ProcessorDefinition<?> def : defs) {
1123                    if (def instanceof SendDefinition) {
1124                        findUriComponent(((SendDefinition) def).getUri(), components);
1125                    }
1126                    if (def instanceof MarshalDefinition) {
1127                        findDataFormat(((MarshalDefinition) def).getDataFormatType(), dataformats);
1128                    }
1129                    if (def instanceof UnmarshalDefinition) {
1130                        findDataFormat(((UnmarshalDefinition) def).getDataFormatType(), dataformats);
1131                    }
1132                    if (def instanceof ExpressionNode) {
1133                        findLanguage(((ExpressionNode) def).getExpression(), languages);
1134                    }
1135                    if (def instanceof ResequenceDefinition) {
1136                        findLanguage(((ResequenceDefinition) def).getExpression(), languages);
1137                    }
1138                    if (def instanceof AggregateDefinition) {
1139                        findLanguage(((AggregateDefinition) def).getExpression(), languages);
1140                        findLanguage(((AggregateDefinition) def).getCorrelationExpression(), languages);
1141                        findLanguage(((AggregateDefinition) def).getCompletionPredicate(), languages);
1142                        findLanguage(((AggregateDefinition) def).getCompletionTimeoutExpression(), languages);
1143                        findLanguage(((AggregateDefinition) def).getCompletionSizeExpression(), languages);
1144                    }
1145                    if (def instanceof CatchDefinition) {
1146                        CatchDefinition doCatch = (CatchDefinition) def;
1147                        if (doCatch.getOnWhen() != null) {
1148                            findLanguage(doCatch.getOnWhen().getExpression(), languages);
1149                        }
1150                    }
1151                    if (def instanceof OnExceptionDefinition) {
1152                        findLanguage(((OnExceptionDefinition) def).getRetryWhile(), languages);
1153                        findLanguage(((OnExceptionDefinition) def).getHandled(), languages);
1154                        findLanguage(((OnExceptionDefinition) def).getContinued(), languages);
1155                    }
1156                    if (def instanceof SortDefinition) {
1157                        findLanguage(((SortDefinition) def).getExpression(), languages);
1158                    }
1159                    if (def instanceof WireTapDefinition) {
1160                        findLanguage(((WireTapDefinition<?>) def).getNewExchangeExpression(), languages);
1161                    }
1162                    findOutputComponents(def.getOutputs(), components, languages, dataformats);
1163                }
1164            }
1165        }
1166
1167        private void findLanguage(ExpressionDefinition expression, Set<String> languages) {
1168            if (expression != null) {
1169                String lang = expression.getLanguage();
1170                if (lang != null && lang.length() > 0) {
1171                    languages.add(lang);
1172                }
1173            }
1174        }
1175
1176        private void findLanguage(ExpressionSubElementDefinition expression, Set<String> languages) {
1177            if (expression != null) {
1178                findLanguage(expression.getExpressionType(), languages);
1179            }
1180        }
1181
1182        private void findDataFormat(DataFormatDefinition dfd, Set<String> dataformats) {
1183            if (dfd != null && dfd.getDataFormatName() != null) {
1184                dataformats.add(dfd.getDataFormatName());
1185            }
1186        }
1187
1188        private void findUriComponent(String uri, Set<String> components) {
1189            // if the uri is a placeholder then skip it
1190            if (uri == null || uri.startsWith(PropertiesComponent.PREFIX_TOKEN)) {
1191                return;
1192            }
1193
1194            // validate uri here up-front so a meaningful error can be logged for blueprint
1195            // it will also speed up tests in case of failure
1196            if (!validateUri(uri)) {
1197                return;
1198            }
1199
1200            String splitURI[] = StringHelper.splitOnCharacter(uri, ":", 2);
1201            if (splitURI[1] != null) {
1202                String scheme = splitURI[0];
1203                components.add(scheme);
1204            }
1205        }
1206
1207        private void findSchedulerUriComponent(String uri, Set<String> components) {
1208
1209            // the input may use a scheduler which can be quartz or spring
1210            if (uri != null) {
1211                try {
1212                    URI u = new URI(uri);
1213                    Map<String, Object> parameters = URISupport.parseParameters(u);
1214                    Object value = parameters.get("scheduler");
1215                    if (value != null) {
1216                        // the scheduler can be quartz or spring based, so add reference to camel component
1217                        // from these components os blueprint knows about the requirement
1218                        String name = value.toString();
1219                        if ("quartz".equals(name)) {
1220                            components.add("quartz");
1221                        } else if ("spring".equals(name)) {
1222                            components.add("spring-event");
1223                        }
1224                    }
1225                } catch (URISyntaxException e) {
1226                    // ignore as uri should be already validated at findUriComponent method
1227                }
1228            }
1229        }
1230
1231        private static boolean validateUri(String uri) {
1232            try {
1233                // the same validation as done in DefaultCamelContext#normalizeEndpointUri(String)
1234                URISupport.normalizeUri(uri);
1235            } catch (URISyntaxException | UnsupportedEncodingException e) {
1236                LOG.error("Endpoint URI '" + uri + "' is not valid due to: " + e.getMessage(), e);
1237                return false;
1238            }
1239            return true;
1240        }
1241    }
1242
1243}