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/*
* Copyright 2018, OpenCensus Authors
*
* 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.opencensus.trace.internal;
import io.opencensus.common.Internal;
import io.opencensus.internal.Utils;
/**
* Helper class to convert/cast between for {@link io.opencensus.trace.MessageEvent} and {@link
* io.opencensus.trace.NetworkEvent}.
*/
@Internal
@SuppressWarnings("deprecation")
public final class BaseMessageEventUtils {
/**
* Cast or convert a {@link io.opencensus.trace.BaseMessageEvent} to {@link
* io.opencensus.trace.MessageEvent}.
*
* <p>Warning: if the input is a {@code io.opencensus.trace.NetworkEvent} and contains {@code
* kernelTimestamp} information, this information will be dropped.
*
* @param event the {@code BaseMessageEvent} that is being cast or converted.
* @return a {@code MessageEvent} representation of the input.
*/
public static io.opencensus.trace.MessageEvent asMessageEvent(
io.opencensus.trace.BaseMessageEvent event) {
Utils.checkNotNull(event, "event");
if (event instanceof io.opencensus.trace.MessageEvent) {
return (io.opencensus.trace.MessageEvent) event;
}
io.opencensus.trace.NetworkEvent networkEvent = (io.opencensus.trace.NetworkEvent) event;
io.opencensus.trace.MessageEvent.Type type =
(networkEvent.getType() == io.opencensus.trace.NetworkEvent.Type.RECV)
? io.opencensus.trace.MessageEvent.Type.RECEIVED
: io.opencensus.trace.MessageEvent.Type.SENT;
return io.opencensus.trace.MessageEvent.builder(type, networkEvent.getMessageId())
.setUncompressedMessageSize(networkEvent.getUncompressedMessageSize())
.setCompressedMessageSize(networkEvent.getCompressedMessageSize())
.build();
}
/**
* Cast or convert a {@link io.opencensus.trace.BaseMessageEvent} to {@link
* io.opencensus.trace.NetworkEvent}.
*
* @param event the {@code BaseMessageEvent} that is being cast or converted.
* @return a {@code io.opencensus.trace.NetworkEvent} representation of the input.
*/
public static io.opencensus.trace.NetworkEvent asNetworkEvent(
io.opencensus.trace.BaseMessageEvent event) {
Utils.checkNotNull(event, "event");
if (event instanceof io.opencensus.trace.NetworkEvent) {
return (io.opencensus.trace.NetworkEvent) event;
}
io.opencensus.trace.MessageEvent messageEvent = (io.opencensus.trace.MessageEvent) event;
io.opencensus.trace.NetworkEvent.Type type =
(messageEvent.getType() == io.opencensus.trace.MessageEvent.Type.RECEIVED)
? io.opencensus.trace.NetworkEvent.Type.RECV
: io.opencensus.trace.NetworkEvent.Type.SENT;
return io.opencensus.trace.NetworkEvent.builder(type, messageEvent.getMessageId())
.setUncompressedMessageSize(messageEvent.getUncompressedMessageSize())
.setCompressedMessageSize(messageEvent.getCompressedMessageSize())
.build();
}
private BaseMessageEventUtils() {}
}
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