/*
* 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.marshalling.serialize;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.net.SocketException;
import org.apache.isis.core.commons.config.IsisConfiguration;
import org.apache.isis.core.commons.exceptions.IsisException;
import org.apache.isis.runtimes.dflt.remoting.common.exchange.Request;
import org.apache.isis.runtimes.dflt.remoting.common.marshalling.MarshallerAbstract;
import org.apache.isis.runtimes.dflt.remoting.common.protocol.IllegalRequestException;
import org.apache.isis.runtimes.dflt.remoting.transport.ConnectionException;
import org.apache.isis.runtimes.dflt.remoting.transport.Transport;
import org.apache.log4j.Logger;
public class SerializingMarshaller extends MarshallerAbstract {
private static final Logger LOG = Logger.getLogger(SerializingMarshaller.class);
private ObjectInputStream input;
private ObjectOutputStream output;
public SerializingMarshaller(final IsisConfiguration configuration, final Transport transport) {
super(configuration, transport);
}
// //////////////////////////////////////////////////////
// connect (client-side impl)
// //////////////////////////////////////////////////////
@Override
public void connect() throws IOException {
super.connect();
this.input = new ObjectInputStream(getTransport().getInputStream());
this.output = new ObjectOutputStream(getTransport().getOutputStream());
}
// //////////////////////////////////////////////////////
// ServerMarshaller impl
// //////////////////////////////////////////////////////
@Override
public Object request(final Request request) throws IOException {
try {
if (LOG.isDebugEnabled()) {
LOG.debug("sending request" + request);
}
final Serializable serializableRequest = asSerializable(request);
try {
output.writeObject(serializableRequest);
} catch (final SocketException e) {
reconnect();
output.writeObject(serializableRequest);
}
output.flush();
final Object object = input.readObject();
if (LOG.isDebugEnabled()) {
LOG.debug("response received: " + object);
}
return object;
/*
* } catch (StreamCorruptedException e) { try { int available = input.available();
* LOG.debug("error in reading; skipping bytes: " + available); input.skip(available); } catch (IOException
* e1) { e1.printStackTrace(); } throw new ConnectionException(e.getMessage(), e);
*/
} catch (final ClassNotFoundException e) {
throw new ConnectionException("Failed request", e);
}
}
private Serializable asSerializable(final Request request) {
return (Serializable) request;
}
// //////////////////////////////////////////////////////
// ServerMarshaller impl
// //////////////////////////////////////////////////////
@Override
public Request readRequest() throws IOException {
try {
final Request request = (Request) input.readObject();
return request;
} catch (final ClassNotFoundException e) {
throw new IllegalRequestException("unknown class received; closing connection: " + e.getMessage(), e);
}
}
@Override
public void sendError(final IsisException exception) throws IOException {
send(exception);
}
@Override
public void sendResponse(final Object response) throws IOException {
send(response);
}
private void send(final Object object) throws IOException {
output.writeObject(object);
output.flush();
}
}