| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.camel.component.context; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.camel.CamelContext; |
| import org.apache.camel.Endpoint; |
| import org.apache.camel.impl.DefaultComponent; |
| import org.apache.camel.util.ObjectHelper; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * A Camel Component which exposes a local {@link CamelContext} instance as a black box set of endpoints. |
| */ |
| public class LocalContextComponent extends DefaultComponent { |
| private static final transient Logger LOG = LoggerFactory.getLogger(LocalContextComponent.class); |
| |
| private CamelContext localCamelContext; |
| private List<String> localProtocolSchemes = new ArrayList<String>(Arrays.asList("direct", "seda", "mock")); |
| |
| public LocalContextComponent(CamelContext localCamelContext) { |
| ObjectHelper.notNull(localCamelContext, "localCamelContext"); |
| this.localCamelContext = localCamelContext; |
| } |
| |
| public List<String> getLocalProtocolSchemes() { |
| return localProtocolSchemes; |
| } |
| |
| /** |
| * Sets the list of protocols which are used to expose public endpoints by default |
| */ |
| public void setLocalProtocolSchemes(List<String> localProtocolSchemes) { |
| this.localProtocolSchemes = localProtocolSchemes; |
| } |
| |
| public CamelContext getLocalCamelContext() { |
| return localCamelContext; |
| } |
| |
| public void setLocalCamelContext(CamelContext localCamelContext) { |
| this.localCamelContext = localCamelContext; |
| } |
| |
| @Override |
| protected Endpoint createEndpoint(String uri, String remaining, Map<String, Object> parameters) |
| throws Exception { |
| |
| // first check if we are using a fully qualified name: [context:]contextId:endpointUri |
| Map<String, Endpoint> map = getLocalCamelContext().getEndpointMap(); |
| |
| if (LOG.isTraceEnabled()) { |
| LOG.trace("Trying to lookup {} in local map {}", remaining, map.keySet()); |
| } |
| Endpoint endpoint = map.get(remaining); |
| if (endpoint != null) { |
| logUsingEndpoint(uri, endpoint); |
| return endpoint; |
| } |
| |
| // look to see if there is an endpoint of name 'remaining' using one of the local endpoints within |
| // the black box CamelContext |
| String[] separators = {":", "://"}; |
| for (String scheme : localProtocolSchemes) { |
| for (String separator : separators) { |
| String newUri = scheme + separator + remaining; |
| endpoint = map.get(newUri); |
| if (endpoint != null) { |
| logUsingEndpoint(uri, endpoint); |
| return endpoint; |
| } |
| } |
| } |
| return null; |
| } |
| |
| protected void logUsingEndpoint(String uri, Endpoint endpoint) { |
| LOG.debug("Mapping the URI: {} to local endpoint: {}", uri, endpoint); |
| } |
| |
| } |