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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.implcore.internal.CurrentState;
import io.opencensus.implcore.internal.CurrentState.State;
import io.opencensus.implcore.tags.propagation.TagPropagationComponentImpl;
import io.opencensus.tags.Tagger;
import io.opencensus.tags.TaggingState;
import io.opencensus.tags.TagsComponent;
import io.opencensus.tags.propagation.TagPropagationComponent;
/** Base implementation of {@link TagsComponent}. */
public class TagsComponentImplBase extends TagsComponent {
private static final State DEFAULT_STATE = State.ENABLED;
// The State shared between the TagsComponent, Tagger, and TagPropagationComponent
private final CurrentState currentState = new CurrentState(DEFAULT_STATE);
private final Tagger tagger = new TaggerImpl(currentState);
private final TagPropagationComponent tagPropagationComponent =
new TagPropagationComponentImpl(currentState);
@Override
public Tagger getTagger() {
return tagger;
}
@Override
public TagPropagationComponent getTagPropagationComponent() {
return tagPropagationComponent;
}
@Override
public TaggingState getState() {
return stateToTaggingState(currentState.get());
}
@Override
@Deprecated
public void setState(TaggingState newState) {
currentState.set(taggingStateToState(checkNotNull(newState, "newState")));
}
private static State taggingStateToState(TaggingState taggingState) {
return taggingState == TaggingState.ENABLED ? State.ENABLED : State.DISABLED;
}
private static TaggingState stateToTaggingState(State state) {
return state == State.ENABLED ? TaggingState.ENABLED : TaggingState.DISABLED;
}
}
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