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// Copyright 2014 Google Inc. All rights reserved.
//
// 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.google.devtools.build.lib.events;
/**
* Passes through any events, and keeps a flag if any of them were errors. It is thread-safe as long
* as the target eventHandler is thread-safe.
*/
public final class ErrorSensingEventHandler extends DelegatingEventHandler {
private volatile boolean hasErrors;
public ErrorSensingEventHandler(EventHandler eventHandler) {
super(eventHandler);
}
@Override
public void handle(Event e) {
hasErrors |= e.getKind() == EventKind.ERROR;
super.handle(e);
}
/**
* Returns whether any of the events on this objects were errors.
*/
public boolean hasErrors() {
return hasErrors;
}
/**
* Reset the error flag. Don't call this while other threads are accessing the same object.
*/
public void resetErrors() {
hasErrors = false;
}
}
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