/
BaseApiTracer.java
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/
BaseApiTracer.java
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/*
* Copyright 2018 Google LLC
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google LLC nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.google.api.gax.tracing;
import com.google.api.core.InternalApi;
import org.threeten.bp.Duration;
/**
* A base implementation of {@link ApiTracer} that does nothing. With the deprecation of Java 7
* support, all the methods in {@link ApiTracer} are now made default, we no longer need a base
* class that does nothing. This class should be removed once all the references to it are removed
* in Google Cloud Client Libraries.
*
* <p>For internal use only.
*/
@InternalApi("For internal use by google-cloud-java clients only")
public class BaseApiTracer implements ApiTracer {
private static final ApiTracer INSTANCE = new BaseApiTracer();
private static final Scope NOOP_SCOPE =
new Scope() {
@Override
public void close() {
// noop
}
};
protected BaseApiTracer() {}
public static ApiTracer getInstance() {
return INSTANCE;
}
@Override
public Scope inScope() {
return NOOP_SCOPE;
}
@Override
public void operationSucceeded() {
// noop
}
@Override
public void operationCancelled() {
// noop
}
@Override
public void operationFailed(Throwable error) {
// noop
}
@Override
public void connectionSelected(String id) {
// noop
}
@Override
public void attemptStarted(int attemptNumber) {
// noop
}
@Override
public void attemptStarted(Object request, int attemptNumber) {
attemptStarted(attemptNumber);
}
@Override
public void attemptSucceeded() {
// noop
}
@Override
public void attemptCancelled() {
// noop
}
@Override
public void attemptFailed(Throwable error, Duration delay) {
// noop
}
@Override
public void attemptFailedRetriesExhausted(Throwable error) {
// noop
}
@Override
public void attemptPermanentFailure(Throwable error) {
// noop
}
@Override
public void lroStartFailed(Throwable error) {
// noop
}
@Override
public void lroStartSucceeded() {
// noop
}
@Override
public void responseReceived() {
// noop
}
@Override
public void requestSent() {
// noop
}
@Override
public void batchRequestSent(long elementCount, long requestSize) {
// noop
}
}