/**
* 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.direct;
import java.util.HashMap;
import java.util.Map;
import org.apache.camel.Component;
import org.apache.camel.Consumer;
import org.apache.camel.Processor;
import org.apache.camel.Producer;
import org.apache.camel.impl.DefaultEndpoint;
import org.apache.camel.spi.UriEndpoint;
import org.apache.camel.spi.UriParam;
import org.apache.camel.util.ObjectHelper;
/**
* Represents a direct endpoint that synchronously invokes the consumer of the
* endpoint when a producer sends a message to it.
*
* @version
*/
@UriEndpoint(scheme = "direct", consumerClass = DirectConsumer.class)
public class DirectEndpoint extends DefaultEndpoint {
private volatile Map<String, DirectConsumer> consumers;
@UriParam(defaultValue = "false")
private boolean block;
@UriParam(defaultValue = "30000")
private long timeout = 30000L;
public DirectEndpoint() {
this.consumers = new HashMap<String, DirectConsumer>();
}
public DirectEndpoint(String endpointUri, Component component) {
this(endpointUri, component, new HashMap<String, DirectConsumer>());
}
public DirectEndpoint(String uri, Component component, Map<String, DirectConsumer> consumers) {
super(uri, component);
this.consumers = consumers;
}
public Producer createProducer() throws Exception {
if (block) {
return new DirectBlockingProducer(this);
} else {
return new DirectProducer(this);
}
}
public Consumer createConsumer(Processor processor) throws Exception {
Consumer answer = new DirectConsumer(this, processor);
configureConsumer(answer);
return answer;
}
public boolean isSingleton() {
return true;
}
public void addConsumer(DirectConsumer consumer) {
String key = consumer.getEndpoint().getKey();
consumers.put(key, consumer);
}
public void removeConsumer(DirectConsumer consumer) {
String key = consumer.getEndpoint().getKey();
consumers.remove(key);
}
public boolean hasConsumer(DirectConsumer consumer) {
String key = consumer.getEndpoint().getKey();
return consumers.containsKey(key);
}
public DirectConsumer getConsumer() {
String key = getKey();
return consumers.get(key);
}
/**
* If sending a message to a direct endpoint which has no active consumer,
* then we can tell the producer to block and wait for the consumer to become active.
* <p/>
* Is by default <tt>false</tt>.
*/
public boolean isBlock() {
return block;
}
/**
* If sending a message to a direct endpoint which has no active consumer,
* then we can tell the producer to block and wait for the consumer to become active.
* <p/>
* Is by default <tt>false</tt>.
*
* @param block whether to block
*/
public void setBlock(boolean block) {
this.block = block;
}
/**
* The timeout value to use if block is enabled.
* <p/>
* Is by default <tt>30000</tt>.
*/
public long getTimeout() {
return timeout;
}
/**
* The timeout value to use if block is enabled.
* <p/>
* Is by default <tt>30000</tt>.
*
* @param timeout the timeout value
*/
public void setTimeout(long timeout) {
this.timeout = timeout;
}
protected String getKey() {
String uri = getEndpointUri();
if (uri.indexOf('?') != -1) {
return ObjectHelper.before(uri, "?");
} else {
return uri;
}
}
}