hadoop TargetApplications 源码

haddop TargetApplications 代码

文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/TargetApplications.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint;

import org.apache.hadoop.thirdparty.com.google.common.base.Strings;
import org.apache.hadoop.thirdparty.com.google.common.collect.ImmutableSet;
import org.apache.hadoop.yarn.api.records.ApplicationId;

import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;

/**
 * This class is used by
 * {@link TargetApplicationsNamespace#evaluate(TargetApplications)} to evaluate
 * a namespace.
 */
public class TargetApplications {

  private ApplicationId currentAppId;
  private Map<ApplicationId, Set<String>> allApps;

  public TargetApplications(ApplicationId currentApplicationId,
      Set<ApplicationId> allApplicationIds) {
    this.currentAppId = currentApplicationId;
    allApps = new HashMap<>();
    if (allApplicationIds != null) {
      allApplicationIds.forEach(appId ->
          allApps.put(appId, ImmutableSet.of()));
    }
  }

  public TargetApplications(ApplicationId currentApplicationId,
      Map<ApplicationId, Set<String>> allApplicationIds) {
    this.currentAppId = currentApplicationId;
    this.allApps = allApplicationIds;
  }

  public ApplicationId getCurrentApplicationId() {
    return this.currentAppId;
  }

  public Set<ApplicationId> getAllApplicationIds() {
    return this.allApps == null ?
        ImmutableSet.of() : allApps.keySet();
  }

  public Set<ApplicationId> getOtherApplicationIds() {
    if (getAllApplicationIds() == null
        || getAllApplicationIds().isEmpty()) {
      return ImmutableSet.of();
    }
    return getAllApplicationIds()
        .stream()
        .filter(appId -> !appId.equals(getCurrentApplicationId()))
        .collect(Collectors.toSet());
  }

  public Set<ApplicationId> getApplicationIdsByTag(String applicationTag) {
    Set<ApplicationId> result = new HashSet<>();
    if (Strings.isNullOrEmpty(applicationTag)
        || this.allApps == null) {
      return result;
    }

    for (Map.Entry<ApplicationId, Set<String>> app
        : this.allApps.entrySet()) {
      if (app.getValue() != null
          && app.getValue().contains(applicationTag)) {
        result.add(app.getKey());
      }
    }

    return result;
  }
}

相关信息

hadoop 源码目录

相关文章

hadoop AllocationTags 源码

hadoop AllocationTagsManager 源码

hadoop Evaluable 源码

hadoop InvalidAllocationTagsQueryException 源码

hadoop MemoryPlacementConstraintManager 源码

hadoop PlacementConstraintManager 源码

hadoop PlacementConstraintManagerService 源码

hadoop PlacementConstraintsUtil 源码

hadoop TargetApplicationsNamespace 源码

hadoop package-info 源码