Package org.apache.james.imapserver.netty

Source Code of org.apache.james.imapserver.netty.ImapLineHandlerAdapter

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* 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   *
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*   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  *
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package org.apache.james.imapserver.netty;

import org.apache.james.imap.api.process.ImapLineHandler;
import org.apache.james.imap.api.process.ImapSession;
import org.jboss.netty.buffer.ChannelBuffer;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.channel.MessageEvent;
import org.jboss.netty.channel.SimpleChannelUpstreamHandler;

/**
* {@link SimpleChannelUpstreamHandler} implementation which will delegate the
* data received on
* {@link #messageReceived(ChannelHandlerContext, MessageEvent)} to a
* {@link ImapLineHandler#onLine(ImapSession, byte[])}
*/
public class ImapLineHandlerAdapter extends SimpleChannelUpstreamHandler {

    private final ImapLineHandler lineHandler;
    private final ImapSession session;

    public ImapLineHandlerAdapter(ImapSession session, ImapLineHandler lineHandler) {
        this.lineHandler = lineHandler;
        this.session = session;
    }

    @Override
    public void messageReceived(ChannelHandlerContext ctx, MessageEvent e) throws Exception {
        ChannelBuffer buf = (ChannelBuffer) e.getMessage();
        byte data[];
        if (buf.hasArray()) {
            data = buf.array();
        } else {
            data = new byte[buf.readableBytes()];
            buf.readBytes(data);
        }
        lineHandler.onLine(session, data);
    }

}
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