diff --git hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-applicationhistoryservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/ApplicationHistoryWriter.java hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-applicationhistoryservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/ApplicationHistoryWriter.java new file mode 100644 index 0000000..c721c63 --- /dev/null +++ hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-applicationhistoryservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/ApplicationHistoryWriter.java @@ -0,0 +1,58 @@ +/** + * 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 org.apache.hadoop.classification.InterfaceAudience.Private; +import org.apache.hadoop.classification.InterfaceStability.Unstable; +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; + +/** + * It is the interface of writing the application history, exposing the methods + * of writing {@link ApplicationHistoryData}, + * {@link ApplicationAttemptHistoryData} and {@link ContainerHistoryData}. + */ +@Private +@Unstable +public interface ApplicationHistoryWriter { + + /** + * This method persists an {@link ApplicationHistoryData} object. + * @param app the {@link ApplicationHistoryData} object + * @throws Throwable + */ + void writeApplication(ApplicationHistoryData app) throws Throwable; + + /** + * This method persists an {@link ApplicationAttemptHistoryData} object. + * @param appAttempt the {@link ApplicationAttemptHistoryData} object + * @throws Throwable + */ + void writeApplicationAttempt( + ApplicationAttemptHistoryData appAttempt) throws Throwable; + + /** + * This method persists a {@link ContainerHistoryData} object. + * @param container the {@link ContainerHistoryData} object + * @throws Throwable + */ + void writeContainer(ContainerHistoryData container) throws Throwable; + +}