/*
* Copyright 2012 The Netty Project
*
* The Netty Project 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 com.facebook.presto.jdbc.internal.netty.handler.codec.rtsp;
import com.facebook.presto.jdbc.internal.netty.buffer.ChannelBuffer;
import com.facebook.presto.jdbc.internal.netty.handler.codec.frame.TooLongFrameException;
import com.facebook.presto.jdbc.internal.netty.handler.codec.http.DefaultHttpRequest;
import com.facebook.presto.jdbc.internal.netty.handler.codec.http.HttpMessage;
import com.facebook.presto.jdbc.internal.netty.handler.codec.http.HttpRequest;
/**
* Decodes {@link ChannelBuffer}s into RTSP requests represented in
* {@link HttpRequest}s.
* <p>
* <h3>Parameters that prevents excessive memory consumption</h3>
* <table border="1">
* <tr>
* <th>Name</th><th>Meaning</th>
* </tr>
* <tr>
* <td>{@code maxInitialLineLength}</td>
* <td>The maximum length of the initial line (e.g. {@code "SETUP / RTSP/1.0"})
* If the length of the initial line exceeds this value, a
* {@link TooLongFrameException} will be raised.</td>
* </tr>
* <tr>
* <td>{@code maxHeaderSize}</td>
* <td>The maximum length of all headers. If the sum of the length of each
* header exceeds this value, a {@link TooLongFrameException} will be raised.</td>
* </tr>
* <tr>
* <td>{@code maxContentLength}</td>
* <td>The maximum length of the content. If the content length exceeds this
* value, a {@link TooLongFrameException} will be raised.</td>
* </tr>
* </table>
*/
public class RtspRequestDecoder extends RtspMessageDecoder {
/**
* Creates a new instance with the default
* {@code maxInitialLineLength (4096}}, {@code maxHeaderSize (8192)}, and
* {@code maxContentLength (8192)}.
*/
public RtspRequestDecoder() {
}
/**
* Creates a new instance with the specified parameters.
*/
public RtspRequestDecoder(int maxInitialLineLength, int maxHeaderSize, int maxContentLength) {
super(maxInitialLineLength, maxHeaderSize, maxContentLength);
}
@Override
protected HttpMessage createMessage(String[] initialLine) throws Exception {
return new DefaultHttpRequest(RtspVersions.valueOf(initialLine[2]),
RtspMethods.valueOf(initialLine[0]), initialLine[1]);
}
@Override
protected boolean isDecodingRequest() {
return true;
}
}