io.undertow.protocols.http2.Http2PushPromiseStreamSinkChannel Maven / Gradle / Ivy
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* Copyright 2014 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* Licensed 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 io.undertow.protocols.http2;
import io.undertow.util.HeaderMap;
import java.nio.ByteBuffer;
/**
* Push promise channel
*
* @author Stuart Douglas
*/
public class Http2PushPromiseStreamSinkChannel extends Http2DataStreamSinkChannel {
private final int pushedStreamId;
Http2PushPromiseStreamSinkChannel(Http2Channel channel, HeaderMap requestHeaders, int associatedStreamId, int pushedStreamId) {
super(channel, associatedStreamId, requestHeaders, Http2Channel.FRAME_TYPE_PUSH_PROMISE);
this.pushedStreamId = pushedStreamId;
}
protected void writeBeforeHeaderBlock(ByteBuffer buffer) {
buffer.put((byte) ((pushedStreamId >> 24) & 0xFF));
buffer.put((byte) ((pushedStreamId >> 16) & 0xFF));
buffer.put((byte) ((pushedStreamId >> 8) & 0xFF));
buffer.put((byte) (pushedStreamId & 0xFF));
}
/**
* this stream is not flow controlled
* @param bytes
* @return
*/
protected int grabFlowControlBytes(int bytes) {
return bytes;
}
public int getPushedStreamId() {
return pushedStreamId;
}
}