YARN-8834 Provide Java client for fetching Yarn specific entities from TimelineReader. Contributed by Abhishek Modi
This commit is contained in:
Vrushali C
parent
fb18cc5eaa
commit
a3edfddcf7
@ -0,0 +1,120 @@
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/**
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.hadoop.yarn.client.api;
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import org.apache.hadoop.classification.InterfaceAudience;
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import org.apache.hadoop.classification.InterfaceStability;
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import org.apache.hadoop.service.CompositeService;
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import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
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import org.apache.hadoop.yarn.api.records.ApplicationId;
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import org.apache.hadoop.yarn.api.records.ContainerId;
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import org.apache.hadoop.yarn.api.records.timelineservice.TimelineEntity;
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import org.apache.hadoop.yarn.client.api.impl.TimelineReaderClientImpl;
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import java.io.IOException;
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import java.util.List;
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import java.util.Map;
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/**
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* A client library that can be used to get Timeline Entities associated with
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* application, application attempt or containers. This client library needs to
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* be used along with time line v.2 server version.
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*/
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@InterfaceAudience.Public
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@InterfaceStability.Evolving
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public abstract class TimelineReaderClient extends CompositeService {
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/**
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* Create a new instance of Timeline Reader Client.
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*/
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@InterfaceAudience.Public
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public static TimelineReaderClient createTimelineReaderClient() {
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return new TimelineReaderClientImpl();
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}
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@InterfaceAudience.Private
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public TimelineReaderClient(String name) {
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super(name);
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}
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/**
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* Gets application entity.
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* @param appId application id
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* @param fields Fields to be fetched. Defaults to INFO.
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* @param filters Filters to be applied while fetching entities.
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* @return entity of the application
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* @throws IOException
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*/
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public abstract TimelineEntity getApplicationEntity(
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ApplicationId appId, String fields, Map<String, String> filters)
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throws IOException;
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/**
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* Gets application attempt entity.
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* @param appAttemptId application attempt id
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* @param fields Fields to be fetched. Defaults to INFO.
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* @param filters Filters to be applied while fetching entities.
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* @return entity associated with application attempt
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* @throws IOException
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*/
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public abstract TimelineEntity getApplicationAttemptEntity(
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ApplicationAttemptId appAttemptId, String fields,
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Map<String, String> filters) throws IOException;
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/**
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* Gets application attempt entities.
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* @param appId application id
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* @param fields Fields to be fetched. Defaults to INFO.
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* @param filters Filters to be applied while fetching entities.
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* @param limit Number of entities to return.
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* @param fromId Retrieve next set of generic ids from given fromId
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* @return list of application attempt entities
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* @throws IOException
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*/
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public abstract List<TimelineEntity> getApplicationAttemptEntities(
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ApplicationId appId, String fields, Map<String, String> filters,
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long limit, String fromId) throws IOException;
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/**
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* Gets Timeline entity for the container.
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* @param containerId container id
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* @param fields Fields to be fetched. Defaults to INFO.
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* @param filters Filters to be applied while fetching entities.
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* @return timeline entity for container
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* @throws IOException
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*/
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public abstract TimelineEntity getContainerEntity(
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ContainerId containerId, String fields, Map<String, String> filters)
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throws IOException;
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/**
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* Gets container entities for an application.
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* @param appId application id
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* @param fields Fields to be fetched. Defaults to INFO.
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* @param filters Filters to be applied while fetching entities.
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* @param limit Number of entities to return.
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* @param fromId Retrieve next set of generic ids from given fromId
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* @return list of entities
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* @throws IOException
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*/
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public abstract List<TimelineEntity> getContainerEntities(
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ApplicationId appId, String fields,
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Map<String, String> filters,
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long limit, String fromId) throws IOException;
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}
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@ -0,0 +1,239 @@
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/**
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.hadoop.yarn.client.api.impl;
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import com.google.common.annotations.VisibleForTesting;
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import com.sun.jersey.core.util.MultivaluedMapImpl;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.apache.hadoop.classification.InterfaceAudience;
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import org.apache.hadoop.classification.InterfaceStability;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.security.UserGroupInformation;
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import org.apache.hadoop.security.token.delegation.web.DelegationTokenAuthenticatedURL;
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import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
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import org.apache.hadoop.yarn.api.records.ApplicationId;
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import org.apache.hadoop.yarn.api.records.ContainerId;
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import org.apache.hadoop.yarn.api.records.timelineservice.TimelineEntity;
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import org.apache.hadoop.yarn.client.api.TimelineReaderClient;
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import com.sun.jersey.api.client.ClientResponse;
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import org.apache.hadoop.yarn.conf.YarnConfiguration;
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import org.apache.hadoop.yarn.webapp.util.WebAppUtils;
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import javax.ws.rs.core.MediaType;
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import javax.ws.rs.core.MultivaluedMap;
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import java.io.IOException;
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import java.net.URI;
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import java.util.Arrays;
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import java.util.List;
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import java.util.Map;
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import static org.apache.hadoop.yarn.api.records.timelineservice.TimelineEntityType.YARN_APPLICATION_ATTEMPT;
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import static org.apache.hadoop.yarn.api.records.timelineservice.TimelineEntityType.YARN_CONTAINER;
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import static org.apache.hadoop.yarn.util.StringHelper.PATH_JOINER;
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/**
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* Implementation of TimelineReaderClient interface.
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*/
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@InterfaceAudience.Public
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@InterfaceStability.Evolving
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public class TimelineReaderClientImpl extends TimelineReaderClient {
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private static final Log LOG =
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LogFactory.getLog(TimelineReaderClientImpl.class);
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private static final String RESOURCE_URI_STR_V2 = "/ws/v2/timeline/";
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private TimelineConnector connector;
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private URI baseUri;
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private String clusterId;
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public TimelineReaderClientImpl() {
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super(TimelineReaderClientImpl.class.getName());
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}
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@Override
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protected void serviceInit(Configuration conf) throws Exception {
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if (!YarnConfiguration.timelineServiceV2Enabled(conf)) {
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throw new IOException("Timeline V2 client is not properly configured. "
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+ "Either timeline service is not enabled or version is not set to"
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+ " 2");
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}
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UserGroupInformation ugi = UserGroupInformation.getCurrentUser();
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UserGroupInformation realUgi = ugi.getRealUser();
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String doAsUser;
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UserGroupInformation authUgi;
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if (realUgi != null) {
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authUgi = realUgi;
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doAsUser = ugi.getShortUserName();
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} else {
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authUgi = ugi;
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doAsUser = null;
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}
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DelegationTokenAuthenticatedURL.Token token =
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new DelegationTokenAuthenticatedURL.Token();
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connector = new TimelineConnector(false, authUgi, doAsUser, token);
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addIfService(connector);
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String timelineReaderWebAppAddress =
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WebAppUtils.getTimelineReaderWebAppURLWithoutScheme(conf);
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baseUri = TimelineConnector.constructResURI(
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conf, timelineReaderWebAppAddress, RESOURCE_URI_STR_V2);
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clusterId = conf.get(YarnConfiguration.RM_CLUSTER_ID,
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YarnConfiguration.DEFAULT_RM_CLUSTER_ID);
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super.serviceInit(conf);
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}
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@Override
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public TimelineEntity getApplicationEntity(ApplicationId appId, String fields,
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Map<String, String> filters)
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throws IOException {
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String path = PATH_JOINER.join("clusters", clusterId, "apps", appId);
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if (fields == null || fields.isEmpty()) {
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fields = "INFO";
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}
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MultivaluedMap<String, String> params = new MultivaluedMapImpl();
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params.add("fields", fields);
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mergeFilters(params, filters);
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ClientResponse response = doGetUri(baseUri, path, params);
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TimelineEntity entity = response.getEntity(TimelineEntity.class);
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return entity;
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}
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@Override
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public TimelineEntity getApplicationAttemptEntity(
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ApplicationAttemptId appAttemptId,
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String fields, Map<String, String> filters) throws IOException {
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ApplicationId appId = appAttemptId.getApplicationId();
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String path = PATH_JOINER.join("clusters", clusterId, "apps",
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appId, "entities", YARN_APPLICATION_ATTEMPT, appAttemptId);
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if (fields == null || fields.isEmpty()) {
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fields = "INFO";
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}
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MultivaluedMap<String, String> params = new MultivaluedMapImpl();
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params.add("fields", fields);
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mergeFilters(params, filters);
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ClientResponse response = doGetUri(baseUri, path, params);
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TimelineEntity entity = response.getEntity(TimelineEntity.class);
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return entity;
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}
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@Override
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public List<TimelineEntity> getApplicationAttemptEntities(
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ApplicationId appId, String fields, Map<String, String> filters,
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long limit, String fromId) throws IOException {
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String path = PATH_JOINER.join("clusters", clusterId, "apps",
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appId, "entities", YARN_APPLICATION_ATTEMPT);
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if (fields == null || fields.isEmpty()) {
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fields = "INFO";
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}
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MultivaluedMap<String, String> params = new MultivaluedMapImpl();
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params.add("fields", fields);
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if (limit > 0) {
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params.add("limit", Long.toString(limit));
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}
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if (fromId != null && !fromId.isEmpty()) {
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params.add("fromid", fromId);
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}
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mergeFilters(params, filters);
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ClientResponse response = doGetUri(baseUri, path, params);
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TimelineEntity[] entities = response.getEntity(TimelineEntity[].class);
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return Arrays.asList(entities);
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}
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@Override
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public TimelineEntity getContainerEntity(ContainerId containerId,
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String fields, Map<String, String> filters) throws IOException {
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ApplicationId appId = containerId.getApplicationAttemptId().
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getApplicationId();
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String path = PATH_JOINER.join("clusters", clusterId, "apps",
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appId, "entities", YARN_CONTAINER, containerId);
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if (fields == null || fields.isEmpty()) {
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fields = "INFO";
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}
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MultivaluedMap<String, String> params = new MultivaluedMapImpl();
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params.add("fields", fields);
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mergeFilters(params, filters);
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ClientResponse response = doGetUri(baseUri, path, params);
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TimelineEntity entity = response.getEntity(TimelineEntity.class);
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return entity;
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}
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@Override
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public List<TimelineEntity> getContainerEntities(
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ApplicationId appId, String fields,
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Map<String, String> filters,
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long limit, String fromId) throws IOException {
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String path = PATH_JOINER.join("clusters", clusterId, "apps",
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appId, "entities", YARN_CONTAINER);
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if (fields == null || fields.isEmpty()) {
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fields = "INFO";
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}
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MultivaluedMap<String, String> params = new MultivaluedMapImpl();
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params.add("fields", fields);
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if (limit > 0) {
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params.add("limit", Long.toString(limit));
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}
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if (fromId != null && !fromId.isEmpty()) {
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params.add("fromid", fromId);
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}
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mergeFilters(params, filters);
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ClientResponse response = doGetUri(baseUri, path, params);
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TimelineEntity[] entity = response.getEntity(TimelineEntity[].class);
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return Arrays.asList(entity);
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}
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private void mergeFilters(MultivaluedMap<String, String> defaults,
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Map<String, String> filters) {
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if (filters != null && !filters.isEmpty()) {
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for (Map.Entry<String, String> entry : filters.entrySet()) {
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if (!defaults.containsKey(entry.getKey())) {
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defaults.add(entry.getKey(), filters.get(entry.getValue()));
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}
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}
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}
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}
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@VisibleForTesting
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protected ClientResponse doGetUri(URI base, String path,
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MultivaluedMap<String, String> params) throws IOException {
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ClientResponse resp = connector.getClient().resource(base).path(path)
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.queryParams(params).accept(MediaType.APPLICATION_JSON)
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.get(ClientResponse.class);
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if (resp == null ||
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resp.getStatusInfo().getStatusCode() != ClientResponse.Status.OK
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.getStatusCode()) {
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String msg =
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"Response from the timeline reader server is " +
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((resp == null) ? "null" : "not successful," +
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" HTTP error code: " + resp.getStatus() +
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", Server response:\n" + resp.getEntity(String.class));
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LOG.error(msg);
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throw new IOException(msg);
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}
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return resp;
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}
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}
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@ -0,0 +1,157 @@
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/**
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
|
||||
* regarding copyright ownership. The ASF licenses this file
|
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* to you under the Apache License, Version 2.0 (the
|
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* "License"); you may not use this file except in compliance
|
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* with the License. You may obtain a copy of the License at
|
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
|
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* distributed under the License is distributed on an "AS IS" BASIS,
|
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
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* See the License for the specific language governing permissions and
|
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* limitations under the License.
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*/
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package org.apache.hadoop.yarn.client.api.impl;
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import static org.apache.hadoop.yarn.api.records.timelineservice.TimelineEntityType.YARN_APPLICATION_ATTEMPT;
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import static org.apache.hadoop.yarn.api.records.timelineservice.TimelineEntityType.YARN_CONTAINER;
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import static org.mockito.Mockito.mock;
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import static org.mockito.Mockito.when;
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import com.sun.jersey.api.client.ClientResponse;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
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import org.apache.hadoop.yarn.api.records.ApplicationId;
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import org.apache.hadoop.yarn.api.records.ContainerId;
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import org.apache.hadoop.yarn.api.records.timelineservice.TimelineEntity;
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import org.apache.hadoop.yarn.client.api.TimelineReaderClient;
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import org.apache.hadoop.yarn.conf.YarnConfiguration;
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import org.junit.After;
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import org.junit.Assert;
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import org.junit.Before;
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import org.junit.Test;
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import javax.ws.rs.core.MultivaluedMap;
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import java.io.IOException;
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import java.net.URI;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* Test class for Timeline Reader Client.
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*/
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public class TestTimelineReaderClientImpl {
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private TimelineReaderClient client;
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@Before
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public void setup() {
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client = new MockTimelineReaderClient();
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Configuration conf = new YarnConfiguration();
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conf.setBoolean(YarnConfiguration.TIMELINE_SERVICE_ENABLED, true);
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conf.setFloat(YarnConfiguration.TIMELINE_SERVICE_VERSION, 2.0f);
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client.init(conf);
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client.start();
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}
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@Test
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public void testGetApplication() throws Exception {
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ApplicationId applicationId =
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ApplicationId.fromString("application_1234_0001");
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TimelineEntity entity = client.getApplicationEntity(applicationId,
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null, null);
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Assert.assertEquals("mockApp1", entity.getId());
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}
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@Test
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public void getApplicationAttemptEntity() throws Exception {
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ApplicationAttemptId attemptId =
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ApplicationAttemptId.fromString("appattempt_1234_0001_000001");
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TimelineEntity entity = client.getApplicationAttemptEntity(attemptId,
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null, null);
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Assert.assertEquals("mockAppAttempt1", entity.getId());
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}
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@Test
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public void getApplicationAttemptEntities() throws Exception {
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ApplicationId applicationId =
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ApplicationId.fromString("application_1234_0001");
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List<TimelineEntity> entities =
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client.getApplicationAttemptEntities(applicationId, null,
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null, 0, null);
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Assert.assertEquals(2, entities.size());
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Assert.assertEquals("mockAppAttempt2", entities.get(1).getId());
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}
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@Test
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public void testGetContainer() throws Exception {
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ContainerId containerId =
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ContainerId.fromString("container_1234_0001_01_000001");
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TimelineEntity entity = client.getContainerEntity(containerId,
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null, null);
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Assert.assertEquals("mockContainer1", entity.getId());
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}
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@Test
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public void testGetContainers() throws Exception {
|
||||
ApplicationId appId =
|
||||
ApplicationId.fromString("application_1234_0001");
|
||||
List<TimelineEntity> entities = client.getContainerEntities(appId,
|
||||
null, null, 0, null);
|
||||
Assert.assertEquals(2, entities.size());
|
||||
Assert.assertEquals("mockContainer2", entities.get(1).getId());
|
||||
}
|
||||
|
||||
@After
|
||||
public void tearDown() {
|
||||
if (client != null) {
|
||||
client.stop();
|
||||
}
|
||||
}
|
||||
|
||||
private static TimelineEntity createTimelineEntity(String id) {
|
||||
TimelineEntity entity = new TimelineEntity();
|
||||
entity.setId(id);
|
||||
return entity;
|
||||
}
|
||||
|
||||
private static TimelineEntity[] createTimelineEntities(String... ids) {
|
||||
List<TimelineEntity> entities = new ArrayList<>();
|
||||
for (String id : ids) {
|
||||
TimelineEntity entity = new TimelineEntity();
|
||||
entity.setId(id);
|
||||
entities.add(entity);
|
||||
}
|
||||
return entities.toArray(new TimelineEntity[entities.size()]);
|
||||
}
|
||||
|
||||
private class MockTimelineReaderClient extends TimelineReaderClientImpl {
|
||||
@Override
|
||||
protected ClientResponse doGetUri(URI base, String path,
|
||||
MultivaluedMap<String, String> params) throws IOException {
|
||||
ClientResponse mockClientResponse = mock(ClientResponse.class);
|
||||
if (path.contains(YARN_CONTAINER.toString())) {
|
||||
when(mockClientResponse.getEntity(TimelineEntity.class)).thenReturn(
|
||||
createTimelineEntity("mockContainer1"));
|
||||
when(mockClientResponse.getEntity(TimelineEntity[].class)).thenReturn(
|
||||
createTimelineEntities("mockContainer1", "mockContainer2"));
|
||||
} else if (path.contains(YARN_APPLICATION_ATTEMPT.toString())) {
|
||||
when(mockClientResponse.getEntity(TimelineEntity.class)).thenReturn(
|
||||
createTimelineEntity("mockAppAttempt1"));
|
||||
when(mockClientResponse.getEntity(TimelineEntity[].class)).thenReturn(
|
||||
createTimelineEntities("mockAppAttempt1", "mockAppAttempt2"));
|
||||
} else {
|
||||
when(mockClientResponse.getEntity(TimelineEntity.class)).thenReturn(
|
||||
createTimelineEntity("mockApp1"));
|
||||
when(mockClientResponse.getEntity(TimelineEntity[].class)).thenReturn(
|
||||
createTimelineEntities("mockApp1", "mockApp2"));
|
||||
}
|
||||
return mockClientResponse;
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user