com.hazelcast.jet.impl.pipeline.SinkImpl Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2018, Hazelcast, 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.hazelcast.jet.impl.pipeline;
import com.hazelcast.jet.core.ProcessorMetaSupplier;
import com.hazelcast.jet.pipeline.Sink;
import javax.annotation.Nonnull;
import java.util.concurrent.atomic.AtomicBoolean;
public class SinkImpl implements Sink {
private final String name;
private ProcessorMetaSupplier metaSupplier;
private final AtomicBoolean isAssignedToStage = new AtomicBoolean();
public SinkImpl(@Nonnull String name, @Nonnull ProcessorMetaSupplier metaSupplier) {
this.name = name;
this.metaSupplier = metaSupplier;
}
@Nonnull
public ProcessorMetaSupplier metaSupplier() {
return metaSupplier;
}
@Override
public String name() {
return name;
}
void onAssignToStage() {
if (isAssignedToStage.getAndSet(true)) {
throw new IllegalStateException("Sink " + name + " was already assigned to a sink stage");
}
}
}