/*
* TeleStax, Open Source Cloud Communications
* Copyright 2011-2016, TeleStax Inc. and individual contributors
* by the @authors tag.
*
* This program is free software: you can redistribute it and/or modify
* under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation; either version 3 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
* This file incorporates work covered by the following copyright and
* permission notice:
*
* JBoss, Home of Professional Open Source
* Copyright 2007-2011, Red Hat, Inc. and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jdiameter.client.impl.transport;
import static java.lang.Class.forName;
import java.lang.reflect.Constructor;
import java.net.InetAddress;
import org.jdiameter.api.Configuration;
import org.jdiameter.api.InternalException;
import org.jdiameter.client.api.io.IConnection;
import org.jdiameter.client.api.io.IConnectionListener;
import org.jdiameter.client.api.io.ITransportLayerFactory;
import org.jdiameter.client.api.io.TransportError;
import org.jdiameter.client.api.io.TransportException;
import org.jdiameter.client.api.parser.IMessageParser;
import org.jdiameter.client.impl.helpers.AppConfiguration;
import org.jdiameter.client.impl.helpers.ExtensionPoint;
import org.jdiameter.client.impl.helpers.Parameters;
import org.jdiameter.common.api.concurrent.DummyConcurrentFactory;
import org.jdiameter.common.api.concurrent.IConcurrentFactory;
/**
*
* @author erick.svenson@yahoo.com
* @author <a href="mailto:baranowb@gmail.com"> Bartosz Baranowski </a>
* @author <a href="mailto:brainslog@gmail.com"> Alexandre Mendonca </a>
*/
public class TransportLayerFactory implements ITransportLayerFactory {
private Class<IConnection> connectionClass;
private Constructor<IConnection> constructorIAi, constructorIAiCL;
protected IMessageParser parser;
protected Configuration config = null;
public TransportLayerFactory(Configuration config, IMessageParser parser) throws TransportException {
this.config = config;
Configuration[] children = config.getChildren(Parameters.Extensions.ordinal());
AppConfiguration internalExtensions = (AppConfiguration) children[ExtensionPoint.Internal.id()];
String implName = internalExtensions.getStringValue(
ExtensionPoint.InternalConnectionClass.ordinal(), ExtensionPoint.InternalConnectionClass.defValue()
);
try {
//TODO: this should be enough to check if class has interface!?
this.connectionClass = (Class<IConnection>) forName(implName);
if (!IConnection.class.isAssignableFrom(this.connectionClass)) {
throw new TransportException("Specified class does not inherit IConnection interface " + this.connectionClass, TransportError.Internal);
}
} catch (Exception e) {
throw new TransportException("Cannot prepare specified connection class " + this.connectionClass, TransportError.Internal, e);
}
try {
//TODO: this is bad practice, IConnection is interface and this code enforces constructor type to be present!
constructorIAiCL = connectionClass.getConstructor(
Configuration.class, IConcurrentFactory.class, InetAddress.class, Integer.TYPE, InetAddress.class,
Integer.TYPE, IConnectionListener.class, IMessageParser.class, String.class);
constructorIAi = connectionClass.getConstructor(
Configuration.class, IConcurrentFactory.class, InetAddress.class, Integer.TYPE, InetAddress.class,
Integer.TYPE, IMessageParser.class, String.class);
}
catch (Exception e) {
throw new TransportException("Cannot find required constructor", TransportError.Internal, e);
}
this.parser = parser;
}
@Override
public IConnection createConnection(InetAddress remoteAddress, IConcurrentFactory factory, int remotePort, InetAddress localAddress, int localPort,
String ref) throws TransportException {
try {
factory = factory == null ? new DummyConcurrentFactory() : factory;
return constructorIAi.newInstance(config, factory, remoteAddress, remotePort, localAddress, localPort, parser, ref);
} catch (Exception e) {
throw new TransportException("Cannot create an instance of " + connectionClass, TransportError.Internal, e);
}
}
@Override
public IConnection createConnection(InetAddress remoteAddress, IConcurrentFactory factory, int remotePort, InetAddress localAddress, int localPort,
IConnectionListener listener, String ref) throws TransportException {
try {
factory = factory == null ? new DummyConcurrentFactory() : factory;
return constructorIAiCL.newInstance(config, factory, remoteAddress, remotePort, localAddress, localPort, listener, parser, ref);
} catch (Exception e) {
throw new TransportException("Cannot create an instance of " + connectionClass, TransportError.Internal, e);
}
}
@Override
public boolean isWrapperFor(Class<?> aClass) throws InternalException {
return false;
}
@Override
public <T> T unwrap(Class<T> aClass) throws InternalException {
return null;
}
}