org.glassfish.grizzly.spdy.frames.SynReplyFrame Maven / Gradle / Ivy
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package org.glassfish.grizzly.spdy.frames;
import org.glassfish.grizzly.Buffer;
import org.glassfish.grizzly.ThreadCache;
import org.glassfish.grizzly.memory.CompositeBuffer;
import org.glassfish.grizzly.memory.MemoryManager;
import static org.glassfish.grizzly.spdy.Constants.SPDY_VERSION;
public class SynReplyFrame extends HeadersProviderFrame {
private static final ThreadCache.CachedTypeIndex CACHE_IDX =
ThreadCache.obtainIndex(SynReplyFrame.class, 8);
public static final int TYPE = 2;
public static final byte FLAG_FIN = 0x01;
private int streamId;
// ------------------------------------------------------------ Constructors
private SynReplyFrame() { }
// ---------------------------------------------------------- Public Methods
static SynReplyFrame create() {
SynReplyFrame frame = ThreadCache.takeFromCache(CACHE_IDX);
if (frame == null) {
frame = new SynReplyFrame();
}
return frame;
}
static SynReplyFrame create(final SpdyHeader header) {
SynReplyFrame frame = create();
frame.initialize(header);
return frame;
}
public static SynReplyFrameBuilder builder() {
return new SynReplyFrameBuilder();
}
public int getStreamId() {
return streamId;
}
@Override
public String toString() {
final StringBuilder sb = new StringBuilder();
sb.append("SynReplyFrame");
sb.append("{streamId=").append(streamId);
sb.append(", compressedHeaders=").append(compressedHeaders);
sb.append(", fin=").append(isFlagSet(FLAG_FIN));
sb.append('}');
return sb.toString();
}
// -------------------------------------------------- Methods from Cacheable
@Override
public void recycle() {
streamId = 0;
super.recycle();
}
// -------------------------------------------------- Methods from SpdyFrame
@Override
public Buffer toBuffer(MemoryManager memoryManager) {
final Buffer frameBuffer = memoryManager.allocate(12);
frameBuffer.putInt(0x80000000 | (SPDY_VERSION << 16) | TYPE); // C | SPDY_VERSION | SYN_REPLY
frameBuffer.putInt((flags << 24) | (compressedHeaders.remaining() + 4)); // FLAGS | LENGTH
frameBuffer.putInt(streamId & 0x7FFFFFFF); // STREAM_ID
frameBuffer.trim();
CompositeBuffer cb = CompositeBuffer.newBuffer(memoryManager, frameBuffer);
cb.append(compressedHeaders);
cb.allowBufferDispose(true);
cb.allowInternalBuffersDispose(true);
return cb;
}
// ------------------------------------------------------- Protected Methods
@Override
protected void initialize(SpdyHeader header) {
super.initialize(header);
streamId = header.buffer.getInt() & 0x7fffffff;
}
// ---------------------------------------------------------- Nested Classes
public static class SynReplyFrameBuilder extends HeadersProviderFrameBuilder {
private final SynReplyFrame synReplyFrame;
// -------------------------------------------------------- Constructors
protected SynReplyFrameBuilder() {
super(SynReplyFrame.create());
synReplyFrame = (SynReplyFrame) frame;
}
// ------------------------------------------------------ Public Methods
public SynReplyFrameBuilder streamId(final int streamId) {
synReplyFrame.streamId = streamId;
return this;
}
public SynReplyFrameBuilder last(boolean last) {
if (last) {
synReplyFrame.setFlag(SynReplyFrame.FLAG_FIN);
} else {
synReplyFrame.clearFlag(SynReplyFrame.FLAG_FIN);
}
return this;
}
public SynReplyFrame build() {
return synReplyFrame;
}
// --------------------------------------- Methods from SpdyFrameBuilder
@Override
protected SynReplyFrameBuilder getThis() {
return this;
}
} // END SynReplyFrameBuilder
}