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; 018 019import java.util.LinkedHashSet; 020import java.util.Set; 021 022import org.apache.aries.blueprint.ExtendedBeanMetadata; 023import org.osgi.service.blueprint.container.BlueprintContainer; 024import org.osgi.service.blueprint.reflect.ComponentMetadata; 025 026/** 027 * A helper class to find the ids of the {@link BlueprintCamelContext} defined 028 * in the {@link org.osgi.service.blueprint.container.BlueprintContainer} 029 */ 030public final class BlueprintCamelContextLookupHelper { 031 032 private BlueprintCamelContextLookupHelper() { 033 } 034 035 /** 036 * Lookup all the {@link BlueprintCamelContext} in the {@link BlueprintContainer}. 037 * 038 * @param container the blueprint container, must be provided 039 * @return a set with the ids of the {@link BlueprintCamelContext}, never <tt>null</tt>, but can be empty set. 040 */ 041 public static Set<String> lookupBlueprintCamelContext(BlueprintContainer container) { 042 Set<String> ids = new LinkedHashSet<>(); 043 for (Object id : container.getComponentIds()) { 044 ComponentMetadata meta = container.getComponentMetadata(id.toString()); 045 046 // must be extended meta, to see if its the blueprint camel context 047 if (meta instanceof ExtendedBeanMetadata) { 048 Class<?> clazz = ((ExtendedBeanMetadata) meta).getRuntimeClass(); 049 if (clazz != null && BlueprintCamelContext.class.isAssignableFrom(clazz)) { 050 // okay we found a BlueprintCamelContext 051 ids.add(meta.getId()); 052 } 053 } 054 } 055 return ids; 056 } 057}