/**
* 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.netty;
import java.nio.charset.Charset;
import org.jboss.netty.buffer.ChannelBuffer;
import org.jboss.netty.channel.ChannelHandler;
import org.jboss.netty.handler.codec.frame.DelimiterBasedFrameDecoder;
import org.jboss.netty.handler.codec.frame.LengthFieldBasedFrameDecoder;
import org.jboss.netty.handler.codec.serialization.ClassResolvers;
import org.jboss.netty.handler.codec.serialization.ObjectDecoder;
import org.jboss.netty.handler.codec.serialization.ObjectEncoder;
import org.jboss.netty.handler.codec.string.StringDecoder;
import org.jboss.netty.handler.codec.string.StringEncoder;
/**
* Helper to create commonly used {@link ChannelHandlerFactory} instances.
*/
public final class ChannelHandlerFactories {
private ChannelHandlerFactories() {
}
public static ChannelHandlerFactory newStringEncoder(Charset charset) {
return new ShareableChannelHandlerFactory(new StringEncoder(charset));
}
public static ChannelHandlerFactory newStringDecoder(Charset charset) {
return new ShareableChannelHandlerFactory(new StringDecoder(charset));
}
public static ChannelHandlerFactory newObjectDecoder() {
return new ChannelHandlerFactory() {
@Override
public ChannelHandler newChannelHandler() {
return new ObjectDecoder(ClassResolvers.weakCachingResolver(null));
}
};
}
public static ChannelHandlerFactory newObjectEncoder() {
return new ShareableChannelHandlerFactory(new ObjectEncoder());
}
public static ChannelHandlerFactory newDelimiterBasedFrameDecoder(final int maxFrameLength, final ChannelBuffer[] delimiters) {
return new ChannelHandlerFactory() {
@Override
public ChannelHandler newChannelHandler() {
return new DelimiterBasedFrameDecoder(maxFrameLength, true, delimiters);
}
};
}
public static ChannelHandlerFactory newLengthFieldBasedFrameDecoder(final int maxFrameLength, final int lengthFieldOffset,
final int lengthFieldLength, final int lengthAdjustment,
final int initialBytesToStrip) {
return new ChannelHandlerFactory() {
@Override
public ChannelHandler newChannelHandler() {
return new LengthFieldBasedFrameDecoder(maxFrameLength, lengthFieldOffset, lengthFieldLength, lengthAdjustment, initialBytesToStrip);
}
};
}
}