/*
* 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.isis.runtimes.dflt.remoting.transport.sockets.shared;
import static org.apache.isis.runtimes.dflt.remoting.transport.sockets.shared.SocketTransportConstants.PORT_DEFAULT;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.ConnectException;
import java.net.MalformedURLException;
import java.net.Socket;
import java.net.UnknownHostException;
import org.apache.log4j.Logger;
import org.apache.isis.core.commons.config.IsisConfiguration;
import org.apache.isis.runtimes.dflt.remoting.transport.ConnectionException;
import org.apache.isis.runtimes.dflt.remoting.transport.ProfilingInputStream;
import org.apache.isis.runtimes.dflt.remoting.transport.ProfilingOutputStream;
import org.apache.isis.runtimes.dflt.remoting.transport.TransportAbstract;
public class SocketTransport extends TransportAbstract {
private static final Logger LOG = Logger.getLogger(SocketTransport.class);
private Socket socket;
private int port;
private String host;
private boolean profiling;
private OutputStream outputStream;
private InputStream inputStream;
public SocketTransport(final IsisConfiguration configuration) {
super(configuration);
}
// ////////////////////////////////////////////////////////
// init, shutdown
// ////////////////////////////////////////////////////////
@Override
public void init() {
port = getConfiguration().getInteger(SocketTransportConstants.PORT_KEY, PORT_DEFAULT);
host = getConfiguration().getString(SocketTransportConstants.HOST_KEY, SocketTransportConstants.HOST_DEFAULT);
profiling = getConfiguration().getBoolean(SocketTransportConstants.PROFILING_KEY, SocketTransportConstants.PROFILING_DEFAULT);
LOG.info("connections will be made to " + host + " " + port);
}
@Override
public void shutdown() {
// does nothing
}
// ////////////////////////////////////////////////////////
// Configuration
// ////////////////////////////////////////////////////////
protected boolean isProfiling() {
return profiling;
}
// ////////////////////////////////////////////////////////
// connect, disconnect
// ////////////////////////////////////////////////////////
@Override
public void connect() {
if (socket != null) {
return;
}
try {
socket = new Socket(host, port);
inputStream = socket.getInputStream();
outputStream = socket.getOutputStream();
if (isProfiling()) {
inputStream = new ProfilingInputStream(inputStream);
outputStream = new ProfilingOutputStream(outputStream);
}
if (LOG.isDebugEnabled()) {
LOG.debug("connection established " + socket);
}
} catch (final MalformedURLException e) {
throw new ConnectionException("Connection failure", e);
} catch (final UnknownHostException e) {
throw new ConnectionException("Connection failure", e);
} catch (final ConnectException e) {
throw new ConnectionException("Failed to connect to " + host + "/" + port, e);
} catch (final IOException e) {
throw new ConnectionException("Connection failure", e);
}
}
@Override
public InputStream getInputStream() {
return inputStream;
}
@Override
public OutputStream getOutputStream() {
return outputStream;
}
@Override
public void disconnect() {
if (socket != null) {
try {
socket.close();
socket = null;
} catch (final IOException e) {
LOG.error("failed to close connection", e);
}
}
}
}