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From cur...@apache.org
Subject [2/2] hadoop git commit: YARN-6634. [API] Refactor ResourceManager WebServices to make API explicit. (Giovanni Matteo Fumarola via curino)
Date Wed, 07 Jun 2017 20:42:49 GMT
YARN-6634. [API] Refactor ResourceManager WebServices to make API explicit. (Giovanni Matteo
Fumarola via curino)


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/547cb53e
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/547cb53e
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/547cb53e

Branch: refs/heads/trunk
Commit: 547cb53e8ae2f19b55f9de7670b91b009d8f3bdd
Parents: 24181f5
Author: Carlo Curino <curino@apache.org>
Authored: Wed Jun 7 13:41:06 2017 -0700
Committer: Carlo Curino <curino@apache.org>
Committed: Wed Jun 7 13:41:06 2017 -0700

----------------------------------------------------------------------
 .../resourcemanager/webapp/RMWSConsts.java      | 202 ++++
 .../webapp/RMWebServiceProtocol.java            | 635 +++++++++++++
 .../resourcemanager/webapp/RMWebServices.java   | 937 +++++++++----------
 3 files changed, 1279 insertions(+), 495 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hadoop/blob/547cb53e/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/RMWSConsts.java
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/RMWSConsts.java
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/RMWSConsts.java
new file mode 100644
index 0000000..23d4bb1
--- /dev/null
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/RMWSConsts.java
@@ -0,0 +1,202 @@
+/**
+ * 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.webapp;
+
+/**
+ * Constants for {@code RMWebServiceProtocol}.
+ */
+public final class RMWSConsts {
+
+  public static final String EMPTY = "";
+  public static final String ANY = "*";
+
+  public static final String FORWARDED_FOR = "X-Forwarded-For";
+
+  // ----------------Paths for RMWebServiceProtocol----------------
+
+  /** Path for {@code RMWebServiceProtocol}. */
+  public static final String RM_WEB_SERVICE_PATH = "/ws/v1/cluster";
+
+  /** Path for {@code RMWebServiceProtocol#getClusterInfo}. */
+  public static final String INFO = "/info";
+
+  /** Path for {@code RMWebServiceProtocol#getClusterMetricsInfo}. */
+  public static final String METRICS = "/metrics";
+
+  /** Path for {@code RMWebServiceProtocol#getSchedulerInfo}. */
+  public static final String SCHEDULER = "/scheduler";
+
+  /** Path for {@code RMWebServiceProtocol#dumpSchedulerLogs}. */
+  public static final String SCHEDULER_LOGS = "/scheduler/logs";
+
+  /** Path for {@code RMWebServiceProtocol#getNodes}. */
+  public static final String NODES = "/nodes";
+
+  /** Path for {@code RMWebServiceProtocol#getNode}. */
+  public static final String NODES_NODEID = "/nodes/{nodeId}";
+
+  /**
+   * Path for {@code RMWebServiceProtocol#getApps} and
+   * {@code RMWebServiceProtocol#getApp}.
+   */
+  public static final String APPS = "/apps";
+
+  /** Path for {@code RMWebServiceProtocol#getActivities}. */
+  public static final String SCHEDULER_ACTIVITIES = "/scheduler/activities";
+
+  /** Path for {@code RMWebServiceProtocol#getAppActivities}. */
+  public static final String SCHEDULER_APP_ACTIVITIES =
+      "/scheduler/app-activities";
+
+  /** Path for {@code RMWebServiceProtocol#getAppStatistics}. */
+  public static final String APP_STATISTICS = "/appstatistics";
+
+  /** Path for {@code RMWebServiceProtocol#getApp}. */
+  public static final String APPS_APPID = "/apps/{appid}";
+
+  /** Path for {@code RMWebServiceProtocol#getAppAttempts}. */
+  public static final String APPS_APPID_APPATTEMPTS =
+      "/apps/{appid}/appattempts";
+
+  /** Path for {@code WebServices#getAppAttempt}. */
+  public static final String APPS_APPID_APPATTEMPTS_APPATTEMPTID =
+      "/apps/{appid}/appattempts/{appattemptid}";
+
+  /** Path for {@code WebServices#getContainers}. */
+  public static final String APPS_APPID_APPATTEMPTS_APPATTEMPTID_CONTAINERS =
+      "/apps/{appid}/appattempts/{appattemptid}/containers";
+
+  /** Path for {@code RMWebServiceProtocol#getNodeToLabels}. */
+  public static final String GET_NODE_TO_LABELS = "/get-node-to-labels";
+
+  /** Path for {@code RMWebServiceProtocol#getLabelsToNodes}. */
+  public static final String LABEL_MAPPINGS = "/label-mappings";
+
+  /** Path for {@code RMWebServiceProtocol#replaceLabelsOnNodes}. */
+  public static final String REPLACE_NODE_TO_LABELS = "/replace-node-to-labels";
+
+  /** Path for {@code RMWebServiceProtocol#replaceLabelsOnNode}. */
+  public static final String NODES_NODEID_REPLACE_LABELS =
+      "/nodes/{nodeId}/replace-labels";
+
+  /** Path for {@code RMWebServiceProtocol#getClusterNodeLabels}. */
+  public static final String GET_NODE_LABELS = "/get-node-labels";
+
+  /** Path for {@code RMWebServiceProtocol#addToClusterNodeLabels}. */
+  public static final String ADD_NODE_LABELS = "/add-node-labels";
+
+  /** Path for {@code RMWebServiceProtocol#removeFromCluserNodeLabels}. */
+  public static final String REMOVE_NODE_LABELS = "/remove-node-labels";
+
+  /** Path for {@code RMWebServiceProtocol#getLabelsOnNode}. */
+  public static final String NODES_NODEID_GETLABELS =
+      "/nodes/{nodeId}/get-labels";
+
+  /**
+   * Path for {@code RMWebServiceProtocol#getAppPriority} and
+   * {@code RMWebServiceProtocol#updateApplicationPriority}.
+   */
+  public static final String APPS_APPID_PRIORITY = "/apps/{appid}/priority";
+
+  /**
+   * Path for {@code RMWebServiceProtocol#getAppQueue} and
+   * {@code RMWebServiceProtocol#updateAppQueue}.
+   */
+  public static final String APPS_APPID_QUEUE = "/apps/{appid}/queue";
+
+  /** Path for {@code RMWebServiceProtocol#createNewApplication}. */
+  public static final String APPS_NEW_APPLICATION = "/apps/new-application";
+
+  /**
+   * Path for {@code RMWebServiceProtocol#getAppState} and
+   * {@code RMWebServiceProtocol#updateAppState}.
+   */
+  public static final String APPS_APPID_STATE = "/apps/{appid}/state";
+
+  /**
+   * Path for {@code RMWebServiceProtocol#postDelegationToken} and
+   * {@code RMWebServiceProtocol#cancelDelegationToken}.
+   */
+  public static final String DELEGATION_TOKEN = "/delegation-token";
+
+  /** Path for {@code RMWebServiceProtocol#postDelegationTokenExpiration}. */
+  public static final String DELEGATION_TOKEN_EXPIRATION =
+      "/delegation-token/expiration";
+
+  /** Path for {@code RMWebServiceProtocol#createNewReservation}. */
+  public static final String RESERVATION_NEW = "/reservation/new-reservation";
+
+  /** Path for {@code RMWebServiceProtocol#submitReservation}. */
+  public static final String RESERVATION_SUBMIT = "/reservation/submit";
+
+  /** Path for {@code RMWebServiceProtocol#updateReservation}. */
+  public static final String RESERVATION_UPDATE = "/reservation/update";
+
+  /** Path for {@code RMWebServiceProtocol#deleteReservation}. */
+  public static final String RESERVATION_DELETE = "/reservation/delete";
+
+  /** Path for {@code RMWebServiceProtocol#listReservation}. */
+  public static final String RESERVATION_LIST = "/reservation/list";
+
+  /** Path for {@code RMWebServiceProtocol#getAppTimeout}. */
+  public static final String APPS_TIMEOUTS_TYPE =
+      "/apps/{appid}/timeouts/{type}";
+
+  /**
+   * Path for {@code RMWebServiceProtocol#getAppTimeouts}.
+   */
+  public static final String APPS_TIMEOUTS = "/apps/{appid}/timeouts";
+
+  /**
+   * Path for {@code RMWebServiceProtocol#updateApplicationTimeout}.
+   */
+  public static final String APPS_TIMEOUT = "/apps/{appid}/timeout";
+
+  // ----------------QueryParams for RMWebServiceProtocol----------------
+
+  public static final String TIME = "time";
+  public static final String STATES = "states";
+  public static final String NODEID = "nodeId";
+  public static final String STATE = "state";
+  public static final String FINAL_STATUS = "finalStatus";
+  public static final String USER = "user";
+  public static final String QUEUE = "queue";
+  public static final String LIMIT = "limit";
+  public static final String STARTED_TIME_BEGIN = "startedTimeBegin";
+  public static final String STARTED_TIME_END = "startedTimeEnd";
+  public static final String FINISHED_TIME_BEGIN = "finishedTimeBegin";
+  public static final String FINISHED_TIME_END = "finishedTimeEnd";
+  public static final String APPLICATION_TYPES = "applicationTypes";
+  public static final String APPLICATION_TAGS = "applicationTags";
+  public static final String APP_ID = "appId";
+  public static final String MAX_TIME = "maxTime";
+  public static final String APPATTEMPTID = "appattemptid";
+  public static final String APPID = "appid";
+  public static final String LABELS = "labels";
+  public static final String RESERVATION_ID = "reservation-id";
+  public static final String START_TIME = "start-time";
+  public static final String END_TIME = "end-time";
+  public static final String INCLUDE_RESOURCE = "include-resource-allocations";
+  public static final String TYPE = "type";
+
+  private RMWSConsts() {
+    // not called
+  }
+
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/hadoop/blob/547cb53e/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/RMWebServiceProtocol.java
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/RMWebServiceProtocol.java
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/RMWebServiceProtocol.java
new file mode 100644
index 0000000..6dd9c41
--- /dev/null
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/RMWebServiceProtocol.java
@@ -0,0 +1,635 @@
+/**
+ * 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.webapp;
+
+import java.io.IOException;
+import java.util.Set;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.ws.rs.core.Response;
+
+import org.apache.hadoop.classification.InterfaceAudience.Private;
+import org.apache.hadoop.classification.InterfaceStability.Evolving;
+import org.apache.hadoop.security.authorize.AuthorizationException;
+import org.apache.hadoop.yarn.api.ApplicationBaseProtocol;
+import org.apache.hadoop.yarn.api.ApplicationClientProtocol;
+import org.apache.hadoop.yarn.api.protocolrecords.ReservationDeleteRequest;
+import org.apache.hadoop.yarn.exceptions.YarnException;
+import org.apache.hadoop.yarn.server.api.ResourceManagerAdministrationProtocol;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.ActivitiesInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.AppActivitiesInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.AppAttemptsInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.AppInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.AppPriority;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.AppQueue;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.AppState;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.AppTimeoutInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.AppTimeoutsInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.ApplicationStatisticsInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.ApplicationSubmissionContextInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.AppsInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.ClusterInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.ClusterMetricsInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.DelegationToken;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.LabelsToNodesInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.NodeInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.NodeLabelsInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.NodeToLabelsEntryList;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.NodeToLabelsInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.NodesInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.ReservationDeleteRequestInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.ReservationSubmissionRequestInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.ReservationUpdateRequestInfo;
+import org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.SchedulerTypeInfo;
+
+/**
+ * <p>
+ * The protocol between clients and the <code>ResourceManager</code> to
+ * submit/abort jobs and to get information on applications, cluster metrics,
+ * nodes, queues, ACLs and reservations via REST calls.
+ * </p>
+ *
+ * The WebService is reachable by using {@link RMWSConsts#RM_WEB_SERVICE_PATH}
+ */
+@Private
+@Evolving
+public interface RMWebServiceProtocol {
+
+  /**
+   * This method retrieves the cluster information, and it is reachable by using
+   * {@link RMWSConsts#INFO}.
+   *
+   * @return the cluster information
+   */
+  ClusterInfo get();
+
+  /**
+   * This method retrieves the cluster information, and it is reachable by using
+   * {@link RMWSConsts#INFO}.
+   *
+   * @return the cluster information
+   */
+  ClusterInfo getClusterInfo();
+
+  /**
+   * This method retrieves the cluster metrics information, and it is reachable
+   * by using {@link RMWSConsts#METRICS}.
+   *
+   * @see ApplicationClientProtocol#getClusterMetrics
+   * @return the cluster metrics information
+   */
+  ClusterMetricsInfo getClusterMetricsInfo();
+
+  /**
+   * This method retrieves the current scheduler status, and it is reachable by
+   * using {@link RMWSConsts#SCHEDULER}.
+   *
+   * @return the current scheduler status
+   */
+  SchedulerTypeInfo getSchedulerInfo();
+
+  /**
+   * This method dumps the scheduler logs for the time got in input, and it is
+   * reachable by using {@link RMWSConsts#SCHEDULER_LOGS}.
+   *
+   * @param time the period of time
+   * @param hsr the servlet request
+   * @return the result of the operation
+   * @throws IOException when it cannot create dump log file
+   */
+  String dumpSchedulerLogs(String time, HttpServletRequest hsr)
+      throws IOException;
+
+  /**
+   * This method retrieves all the nodes information in the cluster, and it is
+   * reachable by using {@link RMWSConsts#NODES}.
+   *
+   * @see ApplicationClientProtocol#getClusterNodes
+   * @param states the states we want to filter
+   * @return all nodes in the cluster. If the states param is given, returns all
+   *         nodes that are in the comma-separated list of states
+   */
+  NodesInfo getNodes(String states);
+
+  /**
+   * This method retrieves a specific node information, and it is reachable by
+   * using {@link RMWSConsts#NODES_NODEID}.
+   *
+   * @param nodeId the node we want to retrieve the information
+   * @return the information about the node in input
+   */
+  NodeInfo getNode(String nodeId);
+
+  /**
+   * This method retrieves all the app reports in the cluster, and it is
+   * reachable by using {@link RMWSConsts#APPS}.
+   *
+   * @see ApplicationClientProtocol#getApplications
+   * @param hsr the servlet request
+   * @param stateQuery right now the stateQuery is deprecated
+   * @param statesQuery filter the result by states
+   * @param finalStatusQuery filter the result by final states
+   * @param userQuery filter the result by user
+   * @param queueQuery filter the result by queue
+   * @param count set a limit of the result
+   * @param startedBegin filter the result by started begin time
+   * @param startedEnd filter the result by started end time
+   * @param finishBegin filter the result by finish begin time
+   * @param finishEnd filter the result by finish end time
+   * @param applicationTypes filter the result by types
+   * @param applicationTags filter the result by tags
+   * @return all apps in the cluster
+   */
+  @SuppressWarnings("checkstyle:parameternumber")
+  AppsInfo getApps(HttpServletRequest hsr, String stateQuery,
+      Set<String> statesQuery, String finalStatusQuery, String userQuery,
+      String queueQuery, String count, String startedBegin, String startedEnd,
+      String finishBegin, String finishEnd, Set<String> applicationTypes,
+      Set<String> applicationTags);
+
+  /**
+   * This method retrieve all the activities in a specific node, and it is
+   * reachable by using {@link RMWSConsts#SCHEDULER_ACTIVITIES}.
+   *
+   * @param hsr the servlet request
+   * @param nodeId the node we want to retrieve the activities
+   * @return all the activities in the specific node
+   */
+  ActivitiesInfo getActivities(HttpServletRequest hsr, String nodeId);
+
+  /**
+   * This method retrieves all the activities for a specific app for a specific
+   * period of time, and it is reachable by using
+   * {@link RMWSConsts#SCHEDULER_APP_ACTIVITIES}.
+   *
+   * @param hsr the servlet request
+   * @param appId the applicationId we want to retrieve the activities
+   * @param time for how long we want to retrieve the activities
+   * @return all the activities about a specific app for a specific time
+   */
+  AppActivitiesInfo getAppActivities(HttpServletRequest hsr, String appId,
+      String time);
+
+  /**
+   * This method retrieves all the statistics for a specific app, and it is
+   * reachable by using {@link RMWSConsts#APP_STATISTICS}.
+   *
+   * @param hsr the servlet request
+   * @param stateQueries filter the result by states
+   * @param typeQueries filter the result by type names
+   * @return the application's statistics for specific states and types
+   */
+  ApplicationStatisticsInfo getAppStatistics(HttpServletRequest hsr,
+      Set<String> stateQueries, Set<String> typeQueries);
+
+  /**
+   * This method retrieves the report for a specific app, and it is reachable by
+   * using {@link RMWSConsts#APPS_APPID}.
+   *
+   * @see ApplicationClientProtocol#getApplicationReport
+   * @param hsr the servlet request
+   * @param appId the Id of the application we want the report
+   * @return the app report for a specific application
+   */
+  AppInfo getApp(HttpServletRequest hsr, String appId);
+
+  /**
+   * This method retrieves the state for a specific app, and it is reachable by
+   * using {@link RMWSConsts#APPS_APPID_STATE}.
+   *
+   * @param hsr the servlet request
+   * @param appId the Id of the application we want the state
+   * @return the state for a specific application
+   * @throws AuthorizationException if the user is not authorized
+   */
+  AppState getAppState(HttpServletRequest hsr, String appId)
+      throws AuthorizationException;
+
+  /**
+   * This method updates the state of the app in input, and it is reachable by
+   * using {@link RMWSConsts#APPS_APPID_STATE}.
+   *
+   * @param targetState the target state for the app
+   * @param hsr the servlet request
+   * @param appId the Id of the application we want to update the state
+   * @return Response containing the status code
+   * @throws AuthorizationException if the user is not authorized to invoke this
+   *           method
+   * @throws YarnException if app does not exist
+   * @throws InterruptedException if interrupted
+   * @throws IOException if doAs action throws an IOException
+   */
+  Response updateAppState(AppState targetState, HttpServletRequest hsr,
+      String appId) throws AuthorizationException, YarnException,
+      InterruptedException, IOException;
+
+  /**
+   * This method retrieves all the node labels with the respective nodes in the
+   * cluster, and it is reachable by using
+   * {@link RMWSConsts#GET_NODE_TO_LABELS}.
+   *
+   * @see ApplicationClientProtocol#getNodeToLabels
+   * @param hsr the servlet request
+   * @return all the nodes within a node label
+   * @throws IOException if an IOException happened
+   */
+  NodeToLabelsInfo getNodeToLabels(HttpServletRequest hsr) throws IOException;
+
+  /**
+   * This method retrieves all the node within multiple node labels in the
+   * cluster, and it is reachable by using {@link RMWSConsts#LABEL_MAPPINGS}.
+   *
+   * @see ApplicationClientProtocol#getLabelsToNodes
+   * @param labels filter the result by node labels
+   * @return all the nodes within multiple node labels
+   * @throws IOException if an IOException happened
+   */
+  LabelsToNodesInfo getLabelsToNodes(Set<String> labels) throws IOException;
+
+  /**
+   * This method replaces all the node labels for specific nodes, and it is
+   * reachable by using {@link RMWSConsts#REPLACE_NODE_TO_LABELS}.
+   *
+   * @see ResourceManagerAdministrationProtocol#replaceLabelsOnNode
+   * @param newNodeToLabels the list of new labels
+   * @param hsr the servlet request
+   * @return Response containing the status code
+   * @throws Exception if an exception happened
+   */
+  Response replaceLabelsOnNodes(NodeToLabelsEntryList newNodeToLabels,
+      HttpServletRequest hsr) throws Exception;
+
+  /**
+   * This method replaces all the node labels for specific node, and it is
+   * reachable by using {@link RMWSConsts#NODES_NODEID_REPLACE_LABELS}.
+   *
+   * @see ResourceManagerAdministrationProtocol#replaceLabelsOnNode
+   * @param newNodeLabelsName the list of new labels
+   * @param hsr the servlet request
+   * @param nodeId the node we want to replace the node labels
+   * @return Response containing the status code
+   * @throws Exception if an exception happened
+   */
+  Response replaceLabelsOnNode(Set<String> newNodeLabelsName,
+      HttpServletRequest hsr, String nodeId) throws Exception;
+
+  /**
+   * This method retrieves all the node labels in the cluster, and it is
+   * reachable by using {@link RMWSConsts#GET_NODE_LABELS}.
+   *
+   * @see ApplicationClientProtocol#getClusterNodeLabels
+   * @param hsr the servlet request
+   * @return all the node labels in the cluster
+   * @throws IOException if an IOException happened
+   */
+  NodeLabelsInfo getClusterNodeLabels(HttpServletRequest hsr)
+      throws IOException;
+
+  /**
+   * This method adds specific node labels for specific nodes, and it is
+   * reachable by using {@link RMWSConsts#ADD_NODE_LABELS}.
+   *
+   * @see ResourceManagerAdministrationProtocol#addToClusterNodeLabels
+   * @param newNodeLabels the node labels to add
+   * @param hsr the servlet request
+   * @return Response containing the status code
+   * @throws Exception in case of bad request
+   */
+  Response addToClusterNodeLabels(NodeLabelsInfo newNodeLabels,
+      HttpServletRequest hsr) throws Exception;
+
+  /**
+   * This method removes all the node labels for specific nodes, and it is
+   * reachable by using {@link RMWSConsts#REMOVE_NODE_LABELS}.
+   *
+   * @see ResourceManagerAdministrationProtocol#removeFromClusterNodeLabels
+   * @param oldNodeLabels the node labels to remove
+   * @param hsr the servlet request
+   * @return Response containing the status code
+   * @throws Exception in case of bad request
+   */
+  Response removeFromCluserNodeLabels(Set<String> oldNodeLabels,
+      HttpServletRequest hsr) throws Exception;
+
+  /**
+   * This method retrieves all the node labels for specific node, and it is
+   * reachable by using {@link RMWSConsts#NODES_NODEID_GETLABELS}.
+   *
+   * @param hsr the servlet request
+   * @param nodeId the node we want to get all the node labels
+   * @return all the labels for a specific node.
+   * @throws IOException if an IOException happened
+   */
+  NodeLabelsInfo getLabelsOnNode(HttpServletRequest hsr, String nodeId)
+      throws IOException;
+
+  /**
+   * This method retrieves the priority for a specific app, and it is reachable
+   * by using {@link RMWSConsts#APPS_APPID_PRIORITY}.
+   *
+   * @param hsr the servlet request
+   * @param appId the app we want to get the priority
+   * @return the priority for a specific application
+   * @throws AuthorizationException in case of the user is not authorized
+   */
+  AppPriority getAppPriority(HttpServletRequest hsr, String appId)
+      throws AuthorizationException;
+
+  /**
+   * This method updates the priority for a specific application, and it is
+   * reachable by using {@link RMWSConsts#APPS_APPID_PRIORITY}.
+   *
+   * @param targetPriority the priority we want to set for the app
+   * @param hsr the servlet request
+   * @param appId the application we want to update its priority
+   * @return Response containing the status code
+   * @throws AuthorizationException if the user is not authenticated
+   * @throws YarnException if the target is null
+   * @throws IOException if the update fails.
+   * @throws InterruptedException if interrupted.
+   */
+  Response updateApplicationPriority(AppPriority targetPriority,
+      HttpServletRequest hsr, String appId) throws AuthorizationException,
+      YarnException, InterruptedException, IOException;
+
+  /**
+   * This method retrieves the queue for a specific app, and it is reachable by
+   * using {@link RMWSConsts#APPS_APPID_QUEUE}.
+   *
+   * @param hsr the servlet request
+   * @param appId the application we want to retrieve its queue
+   * @return the Queue for a specific application.
+   * @throws AuthorizationException if the user is not authenticated
+   */
+  AppQueue getAppQueue(HttpServletRequest hsr, String appId)
+      throws AuthorizationException;
+
+  /**
+   * This method updates the queue for a specific application, and it is
+   * reachable by using {@link RMWSConsts#APPS_APPID_QUEUE}.
+   *
+   * @param targetQueue the queue we want to set
+   * @param hsr the servlet request
+   * @param appId the application we want to change its queue
+   * @return Response containing the status code
+   * @throws AuthorizationException if the user is not authenticated
+   * @throws YarnException if the app is not found
+   * @throws IOException if the update fails.
+   * @throws InterruptedException if interrupted.
+   */
+  Response updateAppQueue(AppQueue targetQueue, HttpServletRequest hsr,
+      String appId) throws AuthorizationException, YarnException,
+      InterruptedException, IOException;
+
+  /**
+   * Generates a new ApplicationId which is then sent to the client. This method
+   * is reachable by using {@link RMWSConsts#APPS_NEW_APPLICATION}.
+   *
+   * @see ApplicationClientProtocol#getNewApplication
+   *
+   * @param hsr the servlet request
+   * @return Response containing the app id and the maximum resource
+   *         capabilities
+   * @throws AuthorizationException if the user is not authorized to invoke this
+   *           method
+   * @throws IOException if the creation fails
+   * @throws InterruptedException if interrupted
+   */
+  Response createNewApplication(HttpServletRequest hsr)
+      throws AuthorizationException, IOException, InterruptedException;
+
+  /**
+   * Function to submit an app to the RM. This method is reachable by using
+   * {@link RMWSConsts#APPS}.
+   *
+   * @see ApplicationClientProtocol#submitApplication
+   *
+   * @param newApp structure containing information to construct the
+   *          ApplicationSubmissionContext
+   * @param hsr the servlet request
+   * @return Response containing the status code
+   * @throws AuthorizationException if the user is not authorized to invoke this
+   *           method
+   * @throws IOException if the submission failed
+   * @throws InterruptedException if interrupted
+   */
+  Response submitApplication(ApplicationSubmissionContextInfo newApp,
+      HttpServletRequest hsr)
+      throws AuthorizationException, IOException, InterruptedException;
+
+  /**
+   * This method posts a delegation token from the client, and it is reachable
+   * by using {@link RMWSConsts#DELEGATION_TOKEN}.
+   *
+   * @see ApplicationBaseProtocol#getDelegationToken
+   * @param tokenData the token to delegate
+   * @param hsr the servlet request
+   * @return Response containing the status code
+   * @throws AuthorizationException if Kerberos auth failed
+   * @throws IOException if the delegation failed
+   * @throws InterruptedException if interrupted
+   * @throws Exception in case of bad request
+   */
+  Response postDelegationToken(DelegationToken tokenData,
+      HttpServletRequest hsr) throws AuthorizationException, IOException,
+      InterruptedException, Exception;
+
+  /**
+   * This method updates the expiration for a delegation token from the client,
+   * and it is reachable by using
+   * {@link RMWSConsts#DELEGATION_TOKEN_EXPIRATION}.
+   *
+   * @see ApplicationBaseProtocol#renewDelegationToken
+   * @param hsr the servlet request
+   * @return Response containing the status code
+   * @throws AuthorizationException if Kerberos auth failed
+   * @throws IOException if the delegation failed
+   * @throws Exception in case of bad request
+   */
+  Response postDelegationTokenExpiration(HttpServletRequest hsr)
+      throws AuthorizationException, IOException, Exception;
+
+  /**
+   * This method cancel the delegation token from the client, and it is
+   * reachable by using {@link RMWSConsts#DELEGATION_TOKEN}.
+   *
+   * @see ApplicationBaseProtocol#cancelDelegationToken
+   * @param hsr the servlet request
+   * @return Response containing the status code
+   * @throws AuthorizationException if Kerberos auth failed
+   * @throws IOException if the delegation failed
+   * @throws InterruptedException if interrupted
+   * @throws Exception in case of bad request
+   */
+  Response cancelDelegationToken(HttpServletRequest hsr)
+      throws AuthorizationException, IOException, InterruptedException,
+      Exception;
+
+  /**
+   * Generates a new ReservationId which is then sent to the client. This method
+   * is reachable by using {@link RMWSConsts#RESERVATION_NEW}.
+   *
+   * @see ApplicationClientProtocol#getNewReservation
+   *
+   * @param hsr the servlet request
+   * @return Response containing the app id and the maximum resource
+   *         capabilities
+   * @throws AuthorizationException if the user is not authorized to invoke this
+   *           method.
+   * @throws IOException if creation failed
+   * @throws InterruptedException if interrupted
+   */
+  Response createNewReservation(HttpServletRequest hsr)
+      throws AuthorizationException, IOException, InterruptedException;
+
+  /**
+   * Function to submit a Reservation to the RM.This method is reachable by
+   * using {@link RMWSConsts#RESERVATION_SUBMIT}.
+   *
+   * @see ApplicationClientProtocol#submitReservation
+   *
+   * @param resContext provides information to construct the
+   *          ReservationSubmissionRequest
+   * @param hsr the servlet request
+   * @return Response containing the status code
+   * @throws AuthorizationException if the user is not authorized to invoke this
+   *           method
+   * @throws IOException if creation failed
+   * @throws InterruptedException if interrupted
+   */
+  Response submitReservation(ReservationSubmissionRequestInfo resContext,
+      HttpServletRequest hsr)
+      throws AuthorizationException, IOException, InterruptedException;
+
+  /**
+   * Function to update a Reservation to the RM. This method is reachable by
+   * using {@link RMWSConsts#RESERVATION_UPDATE}.
+   *
+   * @see ApplicationClientProtocol#updateReservation
+   *
+   * @param resContext provides information to construct the
+   *          ReservationUpdateRequest
+   * @param hsr the servlet request
+   * @return Response containing the status code
+   * @throws AuthorizationException if the user is not authorized to invoke this
+   *           method
+   * @throws IOException if the operation failed
+   * @throws InterruptedException if interrupted
+   */
+  Response updateReservation(ReservationUpdateRequestInfo resContext,
+      HttpServletRequest hsr)
+      throws AuthorizationException, IOException, InterruptedException;
+
+  /**
+   * Function to delete a Reservation to the RM. This method is reachable by
+   * using {@link RMWSConsts#RESERVATION_DELETE}.
+   *
+   * @see ApplicationClientProtocol#deleteReservation
+   *
+   * @param resContext provides information to construct the
+   *          ReservationDeleteRequest
+   * @param hsr the servlet request
+   * @return Response containing the status code
+   * @throws AuthorizationException when the user group information cannot be
+   *           retrieved.
+   * @throws IOException when a {@link ReservationDeleteRequest} cannot be
+   *           created from the {@link ReservationDeleteRequestInfo}. This
+   *           exception is also thrown on
+   *           {@code ClientRMService.deleteReservation} invokation failure.
+   * @throws InterruptedException if doAs action throws an InterruptedException.
+   */
+  Response deleteReservation(ReservationDeleteRequestInfo resContext,
+      HttpServletRequest hsr)
+      throws AuthorizationException, IOException, InterruptedException;
+
+  /**
+   * Function to retrieve a list of all the reservations. This method is
+   * reachable by using {@link RMWSConsts#RESERVATION_LIST}.
+   *
+   * @see ApplicationClientProtocol#listReservations
+   * @param queue filter the result by queue
+   * @param reservationId filter the result by reservationId
+   * @param startTime filter the result by start time
+   * @param endTime filter the result by end time
+   * @param includeResourceAllocations true if the resource allocation should be
+   *          in the result, false otherwise
+   * @param hsr the servlet request
+   * @return Response containing the status code
+   * @throws Exception in case of bad request
+   */
+  Response listReservation(String queue, String reservationId, long startTime,
+      long endTime, boolean includeResourceAllocations, HttpServletRequest hsr)
+      throws Exception;
+
+  /**
+   * This method retrieves the timeout information for a specific app with a
+   * specific type, and it is reachable by using
+   * {@link RMWSConsts#APPS_TIMEOUTS_TYPE}.
+   *
+   * @param hsr the servlet request
+   * @param appId the application we want to get the timeout
+   * @param type the type of the timeouts
+   * @return the timeout for a specific application with a specific type.
+   * @throws AuthorizationException if the user is not authorized
+   */
+  AppTimeoutInfo getAppTimeout(HttpServletRequest hsr, String appId,
+      String type) throws AuthorizationException;
+
+  /**
+   * This method retrieves the timeout information for a specific app, and it is
+   * reachable by using {@link RMWSConsts#APPS_TIMEOUTS}.
+   *
+   * @param hsr the servlet request
+   * @param appId the application we want to get the timeouts
+   * @return the timeouts for a specific application
+   * @throws AuthorizationException if the user is not authorized
+   */
+  AppTimeoutsInfo getAppTimeouts(HttpServletRequest hsr, String appId)
+      throws AuthorizationException;
+
+  /**
+   * This method updates the timeout information for a specific app, and it is
+   * reachable by using {@link RMWSConsts#APPS_TIMEOUT}.
+   *
+   * @see ApplicationClientProtocol#updateApplicationTimeouts
+   * @param appTimeout the appTimeoutInfo
+   * @param hsr the servlet request
+   * @param appId the application we want to update
+   * @return Response containing the status code
+   * @throws AuthorizationException if the user is not authorized to invoke this
+   *           method
+   * @throws YarnException in case of bad request
+   * @throws IOException if the operation failed
+   * @throws InterruptedException if interrupted
+   */
+  Response updateApplicationTimeout(AppTimeoutInfo appTimeout,
+      HttpServletRequest hsr, String appId) throws AuthorizationException,
+      YarnException, InterruptedException, IOException;
+
+  /**
+   * This method retrieves all the attempts information for a specific app, and
+   * it is reachable by using {@link RMWSConsts#APPS_APPID_APPATTEMPTS}.
+   *
+   * @see ApplicationBaseProtocol#getApplicationAttempts
+   * @param hsr the servlet request
+   * @param appId the application we want to get the attempts
+   * @return all the attempts info for a specific application
+   */
+  AppAttemptsInfo getAppAttempts(HttpServletRequest hsr, String appId);
+}


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