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/*
* Copyright 2017, 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.implcore.tags;
import static com.google.common.base.Preconditions.checkNotNull;
import io.opencensus.tags.TaggingState;
import io.opencensus.tags.TagsComponent;
import javax.annotation.concurrent.ThreadSafe;
/**
* The current {@link TaggingState} for a {@link TagsComponent}.
*
* <p>This class allows different tagging classes to share the state in a thread-safe way.
*/
@ThreadSafe
public final class CurrentTaggingState {
private volatile TaggingState currentState = TaggingState.ENABLED;
public TaggingState get() {
return currentState;
}
void set(TaggingState state) {
currentState = checkNotNull(state, "state");
}
}
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