com.datastax.oss.driver.internal.core.protocol.FrameToSegmentEncoder Maven / Gradle / Ivy
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* 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 com.datastax.oss.driver.internal.core.protocol;
import com.datastax.oss.protocol.internal.Frame;
import com.datastax.oss.protocol.internal.FrameCodec;
import com.datastax.oss.protocol.internal.PrimitiveCodec;
import edu.umd.cs.findbugs.annotations.NonNull;
import com.datastax.oss.driver.shaded.netty.buffer.ByteBuf;
import com.datastax.oss.driver.shaded.netty.channel.ChannelHandlerContext;
import com.datastax.oss.driver.shaded.netty.channel.ChannelOutboundHandlerAdapter;
import com.datastax.oss.driver.shaded.netty.channel.ChannelPromise;
import net.jcip.annotations.NotThreadSafe;
@NotThreadSafe
public class FrameToSegmentEncoder extends ChannelOutboundHandlerAdapter {
private final PrimitiveCodec primitiveCodec;
private final FrameCodec frameCodec;
private final String logPrefix;
private ByteBufSegmentBuilder segmentBuilder;
public FrameToSegmentEncoder(
@NonNull PrimitiveCodec primitiveCodec,
@NonNull FrameCodec frameCodec,
@NonNull String logPrefix) {
this.primitiveCodec = primitiveCodec;
this.frameCodec = frameCodec;
this.logPrefix = logPrefix;
}
@Override
public void handlerAdded(@NonNull ChannelHandlerContext ctx) {
segmentBuilder = new ByteBufSegmentBuilder(ctx, primitiveCodec, frameCodec, logPrefix);
}
@Override
public void write(
@NonNull ChannelHandlerContext ctx, @NonNull Object msg, @NonNull ChannelPromise promise)
throws Exception {
if (msg instanceof Frame) {
segmentBuilder.addFrame(((Frame) msg), promise);
} else {
super.write(ctx, msg, promise);
}
}
@Override
public void flush(@NonNull ChannelHandlerContext ctx) throws Exception {
segmentBuilder.flush();
super.flush(ctx);
}
}