/**
* 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.ambari.server.controller.internal;
import org.apache.ambari.server.AmbariException;
import org.apache.ambari.server.controller.AmbariManagementController;
import org.apache.ambari.server.controller.TaskStatusRequest;
import org.apache.ambari.server.controller.TaskStatusResponse;
import org.apache.ambari.server.controller.spi.NoSuchParentResourceException;
import org.apache.ambari.server.controller.spi.NoSuchResourceException;
import org.apache.ambari.server.controller.spi.Predicate;
import org.apache.ambari.server.controller.spi.Request;
import org.apache.ambari.server.controller.spi.RequestStatus;
import org.apache.ambari.server.controller.spi.Resource;
import org.apache.ambari.server.controller.spi.SystemException;
import org.apache.ambari.server.controller.spi.UnsupportedPropertyException;
import org.apache.ambari.server.controller.utilities.PredicateHelper;
import org.apache.ambari.server.controller.utilities.PropertyHelper;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
/**
* Resource provider for task resources.
*/
class TaskResourceProvider extends AbstractResourceProvider {
// ----- Property ID constants ---------------------------------------------
// Tasks
protected static final String TASK_CLUSTER_NAME_PROPERTY_ID = PropertyHelper.getPropertyId("Tasks", "cluster_name");
protected static final String TASK_REQUEST_ID_PROPERTY_ID = PropertyHelper.getPropertyId("Tasks", "request_id");
protected static final String TASK_ID_PROPERTY_ID = PropertyHelper.getPropertyId("Tasks", "id");
protected static final String TASK_STAGE_ID_PROPERTY_ID = PropertyHelper.getPropertyId("Tasks", "stage_id");
protected static final String TASK_HOST_NAME_PROPERTY_ID = PropertyHelper.getPropertyId("Tasks", "host_name");
protected static final String TASK_ROLE_PROPERTY_ID = PropertyHelper.getPropertyId("Tasks", "role");
protected static final String TASK_COMMAND_PROPERTY_ID = PropertyHelper.getPropertyId("Tasks", "command");
protected static final String TASK_STATUS_PROPERTY_ID = PropertyHelper.getPropertyId("Tasks", "status");
protected static final String TASK_EXIT_CODE_PROPERTY_ID = PropertyHelper.getPropertyId("Tasks", "exit_code");
protected static final String TASK_STDERR_PROPERTY_ID = PropertyHelper.getPropertyId("Tasks", "stderr");
protected static final String TASK_STOUT_PROPERTY_ID = PropertyHelper.getPropertyId("Tasks", "stdout");
protected static final String TASK_START_TIME_PROPERTY_ID = PropertyHelper.getPropertyId("Tasks", "start_time");
protected static final String TASK_ATTEMPT_CNT_PROPERTY_ID = PropertyHelper.getPropertyId("Tasks", "attempt_cnt");
private static Set<String> pkPropertyIds =
new HashSet<String>(Arrays.asList(new String[]{
TASK_ID_PROPERTY_ID}));
// ----- Constructors ----------------------------------------------------
/**
* Create a new resource provider for the given management controller.
*
* @param propertyIds the property ids
* @param keyPropertyIds the key property ids
* @param managementController the management controller
*/
TaskResourceProvider(Set<String> propertyIds,
Map<Resource.Type, String> keyPropertyIds,
AmbariManagementController managementController) {
super(propertyIds, keyPropertyIds, managementController);
}
// ----- ResourceProvider ------------------------------------------------
@Override
public RequestStatus createResources(Request request) {
throw new UnsupportedOperationException("Not currently supported.");
}
@Override
public Set<Resource> getResources(Request request, Predicate predicate)
throws SystemException, UnsupportedPropertyException, NoSuchResourceException, NoSuchParentResourceException {
Set<String> requestedIds = getRequestPropertyIds(request, predicate);
final Map<String, Object> predicateProperties = PredicateHelper.getProperties(predicate);
String clusterName = (String) predicateProperties.get(TASK_CLUSTER_NAME_PROPERTY_ID);
Long request_id = new Long((String) predicateProperties.get(TASK_REQUEST_ID_PROPERTY_ID));
// TODO : handle multiple requests
Set<TaskStatusResponse> responses = getResources(new Command<Set<TaskStatusResponse>>() {
@Override
public Set<TaskStatusResponse> invoke() throws AmbariException {
return getManagementController().getTaskStatus(Collections.singleton(getRequest(predicateProperties)));
}
});
if (LOG.isDebugEnabled()) {
LOG.debug("Printing size of responses " + responses.size());
for (TaskStatusResponse response : responses) {
LOG.debug("Printing response from management controller "
+ response.toString());
}
}
Set<Resource> resources = new HashSet<Resource>();
for (TaskStatusResponse response : responses) {
Resource resource = new ResourceImpl(Resource.Type.Task);
setResourceProperty(resource, TASK_CLUSTER_NAME_PROPERTY_ID, clusterName, requestedIds);
setResourceProperty(resource, TASK_REQUEST_ID_PROPERTY_ID, request_id, requestedIds);
setResourceProperty(resource, TASK_ID_PROPERTY_ID, response.getTaskId(), requestedIds);
setResourceProperty(resource, TASK_STAGE_ID_PROPERTY_ID, response.getStageId(), requestedIds);
setResourceProperty(resource, TASK_HOST_NAME_PROPERTY_ID, response.getHostName(), requestedIds);
setResourceProperty(resource, TASK_ROLE_PROPERTY_ID, response.getRole(), requestedIds);
setResourceProperty(resource, TASK_COMMAND_PROPERTY_ID, response.getCommand(), requestedIds);
setResourceProperty(resource, TASK_STATUS_PROPERTY_ID, response.getStatus(), requestedIds);
setResourceProperty(resource, TASK_EXIT_CODE_PROPERTY_ID, response.getExitCode(), requestedIds);
setResourceProperty(resource, TASK_STDERR_PROPERTY_ID, response.getStderr(), requestedIds);
setResourceProperty(resource, TASK_STOUT_PROPERTY_ID, response.getStdout(), requestedIds);
setResourceProperty(resource, TASK_START_TIME_PROPERTY_ID, response.getStartTime(), requestedIds);
setResourceProperty(resource, TASK_ATTEMPT_CNT_PROPERTY_ID, response.getAttemptCount(), requestedIds);
resources.add(resource);
}
return resources;
}
@Override
public RequestStatus updateResources(Request request, Predicate predicate)
throws SystemException, UnsupportedPropertyException, NoSuchResourceException, NoSuchParentResourceException {
throw new UnsupportedOperationException("Not currently supported.");
}
@Override
public RequestStatus deleteResources(Predicate predicate)
throws SystemException, UnsupportedPropertyException, NoSuchResourceException, NoSuchParentResourceException {
throw new UnsupportedOperationException("Not currently supported.");
}
// ----- utility methods -------------------------------------------------
@Override
protected Set<String> getPKPropertyIds() {
return pkPropertyIds;
}
/**
* Get a component request object from a map of property values.
*
* @param properties the predicate
*
* @return the component request object
*/
private TaskStatusRequest getRequest(Map<String, Object> properties) {
String taskId = (String) properties.get(TASK_ID_PROPERTY_ID);
Long task_id = (taskId == null? null: Long.valueOf(taskId));
return new TaskStatusRequest(
Long.valueOf((String) properties.get(TASK_REQUEST_ID_PROPERTY_ID)),
task_id);
}
}