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.component.directvm;
018
019import java.util.ArrayList;
020import java.util.Collection;
021
022import org.apache.camel.Endpoint;
023import org.apache.camel.Exchange;
024import org.apache.camel.support.ExpressionAdapter;
025import org.apache.camel.util.AntPathMatcher;
026
027/**
028 * The expression to select direct-vm consumers based on ant-like path pattern matching.
029 */
030public class DirectVmConsumerExpression extends ExpressionAdapter {
031
032    private final AntPathMatcher matcher;
033    private final String pattern;
034
035    public DirectVmConsumerExpression(String pattern) {
036        this.matcher = new AntPathMatcher();
037        this.pattern = pattern;
038    }
039
040    @Override
041    public Object evaluate(Exchange exchange) {
042        Collection<Endpoint> endpoints = new ArrayList<>();
043        for (Endpoint endpoint : DirectVmComponent.getConsumerEndpoints()) {
044            if (matcher.match(pattern, endpoint.getEndpointKey())) {
045                endpoints.add(endpoint);
046            }
047        }
048        return endpoints;
049    }
050
051    @Override
052    public String toString() {
053        return "DirectVmConsumerExpression[" + pattern + "]";
054    }
055}