com.google.cloud.dataflow.sdk.util.FinishedTriggersBitSet Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of google-cloud-dataflow-java-sdk-all Show documentation

Google Cloud Dataflow Java SDK provides a simple, Java-based interface for processing virtually any size data using Google cloud resources. This artifact includes entire Dataflow Java SDK.

There is a newer version: 2.5.0

Show newest version

/*
 * Copyright (C) 2015 Google Inc.
 *
 * 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.cloud.dataflow.sdk.util;

import java.util.BitSet;

/**
 * A {@link FinishedTriggers} implementation based on an underlying {@link BitSet}.
 */
public class FinishedTriggersBitSet implements FinishedTriggers {

  private final BitSet bitSet;

  private FinishedTriggersBitSet(BitSet bitSet) {
    this.bitSet = bitSet;
  }

  public static FinishedTriggersBitSet emptyWithCapacity(int capacity) {
    return new FinishedTriggersBitSet(new BitSet(capacity));
  }

  public static FinishedTriggersBitSet fromBitSet(BitSet bitSet) {
    return new FinishedTriggersBitSet(bitSet);
  }

  /**
   * Returns the underlying {@link BitSet} for this {@link FinishedTriggersBitSet}.
   */
  public BitSet getBitSet() {
    return bitSet;
  }

  @Override
  public boolean isFinished(ExecutableTrigger trigger) {
    return bitSet.get(trigger.getTriggerIndex());
  }

  @Override
  public void setFinished(ExecutableTrigger trigger, boolean value) {
    bitSet.set(trigger.getTriggerIndex(), value);
  }

  @Override
  public void clearRecursively(ExecutableTrigger trigger) {
    bitSet.clear(trigger.getTriggerIndex(), trigger.getFirstIndexAfterSubtree());
  }

  @Override
  public FinishedTriggersBitSet copy() {
    return new FinishedTriggersBitSet((BitSet) bitSet.clone());
  }
}