/*
* Copyright DataStax, Inc.
*
* 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 com.datastax.oss.driver.internal.core.channel;
import com.datastax.oss.driver.api.core.metrics.DefaultNodeMetric;
import com.datastax.oss.driver.api.core.metrics.DefaultSessionMetric;
import com.datastax.oss.driver.internal.core.metrics.NodeMetricUpdater;
import com.datastax.oss.driver.internal.core.metrics.SessionMetricUpdater;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelOutboundHandlerAdapter;
import io.netty.channel.ChannelPromise;
public class OutboundTrafficMeter extends ChannelOutboundHandlerAdapter {
private final NodeMetricUpdater nodeMetricUpdater;
private final SessionMetricUpdater sessionMetricUpdater;
OutboundTrafficMeter(
NodeMetricUpdater nodeMetricUpdater, SessionMetricUpdater sessionMetricUpdater) {
this.nodeMetricUpdater = nodeMetricUpdater;
this.sessionMetricUpdater = sessionMetricUpdater;
}
@Override
public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise)
throws Exception {
if (msg instanceof ByteBuf) {
int bytes = ((ByteBuf) msg).readableBytes();
nodeMetricUpdater.markMeter(DefaultNodeMetric.BYTES_SENT, null, bytes);
sessionMetricUpdater.markMeter(DefaultSessionMetric.BYTES_SENT, null, bytes);
}
super.write(ctx, msg, promise);
}
}