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From vino...@apache.org
Subject svn commit: r1508228 - in /hadoop/common/branches/YARN-321/hadoop-yarn-project: ./ hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-applicationhistoryservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/
Date Mon, 29 Jul 2013 23:08:42 GMT
Author: vinodkv
Date: Mon Jul 29 23:08:42 2013
New Revision: 1508228

URL: http://svn.apache.org/r1508228
Log:
YARN-925. Defined a Reader Interface for HistoryStorage. Contributed by Mayank Bansal.

Added:
    hadoop/common/branches/YARN-321/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-applicationhistoryservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/ApplicationHistoryReader.java
Modified:
    hadoop/common/branches/YARN-321/hadoop-yarn-project/CHANGES.txt

Modified: hadoop/common/branches/YARN-321/hadoop-yarn-project/CHANGES.txt
URL: http://svn.apache.org/viewvc/hadoop/common/branches/YARN-321/hadoop-yarn-project/CHANGES.txt?rev=1508228&r1=1508227&r2=1508228&view=diff
==============================================================================
--- hadoop/common/branches/YARN-321/hadoop-yarn-project/CHANGES.txt (original)
+++ hadoop/common/branches/YARN-321/hadoop-yarn-project/CHANGES.txt Mon Jul 29 23:08:42 2013
@@ -43,6 +43,9 @@ Branch YARN-321: Generic ApplicationHist
   YARN-934. Defined a Writer Interface for HistoryStorage. (Zhijie Shen via
   vinodkv)
 
+  YARN-925. Defined a Reader Interface for HistoryStorage. (Mayank Bansal via
+  vinodkv)
+
 Release 2.1.1-beta - UNRELEASED
 
   INCOMPATIBLE CHANGES

Added: hadoop/common/branches/YARN-321/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-applicationhistoryservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/ApplicationHistoryReader.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/YARN-321/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-applicationhistoryservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/ApplicationHistoryReader.java?rev=1508228&view=auto
==============================================================================
--- hadoop/common/branches/YARN-321/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-applicationhistoryservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/ApplicationHistoryReader.java
(added)
+++ hadoop/common/branches/YARN-321/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-applicationhistoryservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/ApplicationHistoryReader.java
Mon Jul 29 23:08:42 2013
@@ -0,0 +1,87 @@
+/**
+ * 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.applicationhistoryservice;
+
+import java.util.Map;
+
+import org.apache.hadoop.classification.InterfaceAudience;
+import org.apache.hadoop.classification.InterfaceStability;
+import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
+import org.apache.hadoop.yarn.api.records.ApplicationId;
+import org.apache.hadoop.yarn.api.records.ContainerId;
+import org.apache.hadoop.yarn.server.applicationhistoryservice.records.ApplicationAttemptHistoryData;
+import org.apache.hadoop.yarn.server.applicationhistoryservice.records.ApplicationHistoryData;
+import org.apache.hadoop.yarn.server.applicationhistoryservice.records.ContainerHistoryData;
+
+@InterfaceAudience.Public
+@InterfaceStability.Unstable
+public interface ApplicationHistoryReader {
+
+  /**
+   * This method returns Application {@link ApplicationHistoryData} for the specified
+   * {@link ApplicationId}.
+   * 
+   * @return {@link ApplicationHistoryData} for the ApplicationId.
+   */
+   ApplicationHistoryData getApplication(ApplicationId appId);
+
+  /**
+   * This method returns all Application {@link ApplicationHistoryData}s
+   * 
+   * @return map {@link ApplicationId, @link ApplicationHistoryData}s.
+   */
+  Map<ApplicationId, ApplicationHistoryData> getAllApplications();
+
+  /**
+   * Application can have multiple application attempts
+   * {@link ApplicationAttemptHistoryData}. This method returns the all
+   * {@link ApplicationAttemptHistoryData}s for the Application.
+   * 
+   * @return all {@link ApplicationAttemptHistoryData}s for the Application.
+   */
+  Map<ApplicationAttemptId, ApplicationAttemptHistoryData> getApplicationAttempts(
+      ApplicationId appId);
+
+  /**
+   * This method returns {@link ApplicationAttemptHistoryData} for specified
+   * {@link ApplicationId}.
+   * 
+   * @param {@link ApplicationAttemptId}
+   * @return {@link ApplicationAttemptHistoryData} for ApplicationAttemptId
+   */
+  ApplicationAttemptHistoryData getApplicationAttempt(
+      ApplicationAttemptId appAttemptId);
+
+  /**
+   * This method returns {@link Container} for specified {@link ContainerId}.
+   * 
+   * @param {@link ContainerId}
+   * @return {@link Container} for ContainerId
+   */
+  ContainerHistoryData getAMContainer(ContainerId containerId);
+
+  /**
+   * This method returns {@link ContainerHistoryData} for specified
+   * {@link ApplicationAttemptId}.
+   * 
+   * @param {@link ApplicationAttemptId}
+   * @return {@link ContainerHistoryData} for ApplicationAttemptId
+   */
+  ContainerHistoryData getContainer(ApplicationAttemptId appAttemptId);
+}



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