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.impl.cloud;
018
019import java.util.ArrayList;
020import java.util.Arrays;
021import java.util.Collections;
022import java.util.List;
023
024import org.apache.camel.cloud.ServiceDefinition;
025import org.apache.camel.cloud.ServiceFilter;
026
027public class CombinedServiceFilter implements ServiceFilter {
028    private final List<ServiceFilter> delegates;
029    private final int delegatesSize;
030
031    public CombinedServiceFilter(List<ServiceFilter> delegates) {
032        this.delegates = Collections.unmodifiableList(new ArrayList<>(delegates));
033        this.delegatesSize = this.delegates.size();
034    }
035
036    public List<ServiceFilter> getDelegates() {
037        return this.delegates;
038    }
039
040
041    @Override
042    public List<ServiceDefinition> apply(List<ServiceDefinition> services) {
043        for (int i = 0; i < delegatesSize; i++) {
044            services = delegates.get(i).apply(services);
045        }
046
047        return services;
048    }
049
050    // **********************
051    // Helpers
052    // **********************
053
054    public static CombinedServiceFilter wrap(ServiceFilter... delegates) {
055        return new CombinedServiceFilter(Arrays.asList(delegates));
056    }
057}