/*
* Copyright (c) 2005-2014, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
* WSO2 Inc. 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.wso2.carbon.inbound.endpoint.protocol.http;
import org.apache.log4j.Logger;
import org.apache.synapse.SynapseException;
import org.apache.synapse.inbound.InboundEndpoint;
import org.apache.synapse.inbound.InboundProcessorParams;
import org.apache.synapse.inbound.InboundRequestProcessor;
import org.apache.synapse.transport.passthru.api.PassThroughInboundEndpointHandler;
import org.wso2.carbon.inbound.endpoint.protocol.http.config.WorkerPoolConfiguration;
import org.wso2.carbon.inbound.endpoint.protocol.http.management.HTTPEndpointManager;
import java.io.IOException;
import java.net.ServerSocket;
import java.util.Collection;
/**
* Listener class for HttpInboundEndpoint which is trigger by inbound core and
* responsible for start ListeningEndpoint related to given port
*/
public class InboundHttpListener implements InboundRequestProcessor {
private static final Logger log = Logger.getLogger(InboundHttpListener.class);
private String name;
private int port;
private InboundProcessorParams processorParams;
public InboundHttpListener(InboundProcessorParams params) {
processorParams = params;
String portParam = params.getProperties().getProperty(
InboundHttpConstants.INBOUND_ENDPOINT_PARAMETER_HTTP_PORT);
try {
port = Integer.parseInt(portParam);
} catch (NumberFormatException e) {
handleException("Please provide port number as integer instead of port " + portParam, e);
}
name = params.getName();
}
@Override
public void init() {
if (isPortUsedByAnotherApplication(port)) {
log.warn("Port " + port + " used by inbound endpoint " + name + " is already used by another application " +
"hence undeploying inbound endpoint");
throw new SynapseException("Port " + port + " used by inbound endpoint " + name + " is already used by " +
"another application.");
} else {
HTTPEndpointManager.getInstance().startEndpoint(port, name, processorParams);
}
}
@Override
public void destroy() {
HTTPEndpointManager.getInstance().closeEndpoint(port);
}
protected void handleException(String msg, Exception e) {
log.error(msg, e);
throw new SynapseException(msg, e);
}
protected boolean isPortUsedByAnotherApplication(int port) {
if (PassThroughInboundEndpointHandler.isEndpointRunning(port) ){
return false;
} else {
try {
ServerSocket srv = new ServerSocket(port);
srv.close();
srv = null;
return false;
} catch (IOException e) {
return true;
}
}
}
protected void destoryInbound(){
if (processorParams.getSynapseEnvironment() != null) {
Collection<InboundEndpoint> inboundEndpoints = processorParams.getSynapseEnvironment().
getSynapseConfiguration().getInboundEndpoints();
{
for (InboundEndpoint inboundEndpoint : inboundEndpoints) {
if (inboundEndpoint.getName().equals(name)) {
processorParams.getSynapseEnvironment().
getSynapseConfiguration().removeInboundEndpoint(name);
break;
}
}
}
}
}
}