/**
* 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 java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import org.apache.ambari.server.AmbariException;
import org.apache.ambari.server.controller.AmbariManagementController;
import org.apache.ambari.server.controller.ClusterRequest;
import org.apache.ambari.server.controller.ClusterResponse;
import org.apache.ambari.server.controller.ConfigurationRequest;
import org.apache.ambari.server.controller.RequestStatusResponse;
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.ResourceAlreadyExistsException;
import org.apache.ambari.server.controller.spi.SystemException;
import org.apache.ambari.server.controller.spi.UnsupportedPropertyException;
import org.apache.ambari.server.controller.utilities.PropertyHelper;
/**
* Resource provider for cluster resources.
*/
class ClusterResourceProvider extends AbstractControllerResourceProvider {
// ----- Property ID constants ---------------------------------------------
// Clusters
protected static final String CLUSTER_ID_PROPERTY_ID = PropertyHelper.getPropertyId("Clusters", "cluster_id");
protected static final String CLUSTER_NAME_PROPERTY_ID = PropertyHelper.getPropertyId("Clusters", "cluster_name");
protected static final String CLUSTER_VERSION_PROPERTY_ID = PropertyHelper.getPropertyId("Clusters", "version");
protected static final String CLUSTER_DESIRED_CONFIGS_PROPERTY_ID = PropertyHelper.getPropertyId("Clusters", "desired_configs");
private static Set<String> pkPropertyIds =
new HashSet<String>(Arrays.asList(new String[]{
CLUSTER_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
*/
ClusterResourceProvider(Set<String> propertyIds,
Map<Resource.Type, String> keyPropertyIds,
AmbariManagementController managementController) {
super(propertyIds, keyPropertyIds, managementController);
}
// ----- ResourceProvider ------------------------------------------------
@Override
public RequestStatus createResources(Request request)
throws SystemException,
UnsupportedPropertyException,
ResourceAlreadyExistsException,
NoSuchParentResourceException {
for (final Map<String, Object> properties : request.getProperties()) {
createResources(new Command<Void>() {
@Override
public Void invoke() throws AmbariException {
getManagementController().createCluster(getRequest(properties));
return null;
}
});
}
notifyCreate(Resource.Type.Cluster, request);
return getRequestStatus(null);
}
@Override
public Set<Resource> getResources(Request request, Predicate predicate)
throws SystemException, UnsupportedPropertyException, NoSuchResourceException, NoSuchParentResourceException {
final Set<ClusterRequest> requests = new HashSet<ClusterRequest>();
if (predicate == null) {
requests.add(getRequest(Collections.<String, Object>emptyMap()));
} else {
for (Map<String, Object> propertyMap : getPropertyMaps(predicate)) {
requests.add(getRequest(propertyMap));
}
}
Set<String> requestedIds = getRequestPropertyIds(request, predicate);
Set<ClusterResponse> responses = getResources(new Command<Set<ClusterResponse>>() {
@Override
public Set<ClusterResponse> invoke() throws AmbariException {
return getManagementController().getClusters(requests);
}
});
Set<Resource> resources = new HashSet<Resource>();
if (LOG.isDebugEnabled()) {
LOG.debug("Found clusters matching getClusters request"
+ ", clusterResponseCount=" + responses.size());
}
for (ClusterResponse response : responses) {
Resource resource = new ResourceImpl(Resource.Type.Cluster);
setResourceProperty(resource, CLUSTER_ID_PROPERTY_ID, response.getClusterId(), requestedIds);
setResourceProperty(resource, CLUSTER_NAME_PROPERTY_ID, response.getClusterName(), requestedIds);
setResourceProperty(resource, CLUSTER_DESIRED_CONFIGS_PROPERTY_ID, response.getDesiredConfigs(), requestedIds);
resource.setProperty(CLUSTER_VERSION_PROPERTY_ID,
response.getDesiredStackVersion());
if (LOG.isDebugEnabled()) {
LOG.debug("Adding ClusterResponse to resource"
+ ", clusterResponse=" + response.toString());
}
resources.add(resource);
}
return resources;
}
@Override
public RequestStatus updateResources(final Request request, Predicate predicate)
throws SystemException, UnsupportedPropertyException, NoSuchResourceException, NoSuchParentResourceException {
final Set<ClusterRequest> requests = new HashSet<ClusterRequest>();
RequestStatusResponse response;
for (Map<String, Object> requestPropertyMap : request.getProperties()) {
Set<Map<String, Object>> propertyMaps = getPropertyMaps(requestPropertyMap, predicate);
for (Map<String, Object> propertyMap : propertyMaps) {
requests.add(getRequest(propertyMap));
}
}
response = modifyResources(new Command<RequestStatusResponse>() {
@Override
public RequestStatusResponse invoke() throws AmbariException {
return getManagementController().updateClusters(requests, request.getRequestInfoProperties());
}
});
notifyUpdate(Resource.Type.Cluster, request, predicate);
return getRequestStatus(response);
}
@Override
public RequestStatus deleteResources(Predicate predicate)
throws SystemException, UnsupportedPropertyException, NoSuchResourceException, NoSuchParentResourceException {
for (Map<String, Object> propertyMap : getPropertyMaps(predicate)) {
final ClusterRequest clusterRequest = getRequest(propertyMap);
modifyResources(new Command<Void>() {
@Override
public Void invoke() throws AmbariException {
getManagementController().deleteCluster(clusterRequest);
return null;
}
});
}
notifyDelete(Resource.Type.Cluster, predicate);
return getRequestStatus(null);
}
// ----- utility methods -------------------------------------------------
@Override
protected Set<String> getPKPropertyIds() {
return pkPropertyIds;
}
/**
* Get a cluster request object from a map of property values.
*
* @param properties the predicate
*
* @return the cluster request object
*/
private ClusterRequest getRequest(Map<String, Object> properties) {
ClusterRequest cr = new ClusterRequest(
(Long) properties.get(CLUSTER_ID_PROPERTY_ID),
(String) properties.get(CLUSTER_NAME_PROPERTY_ID),
(String) properties.get(CLUSTER_VERSION_PROPERTY_ID),
null);
ConfigurationRequest configRequest = getConfigurationRequest("Clusters", properties);
if (null != configRequest)
cr.setDesiredConfig(configRequest);
return cr;
}
/**
* {@inheritDoc} Overridden to support configuration.
*/
@Override
public Set<String> checkPropertyIds(Set<String> propertyIds) {
Set<String> baseUnsupported = super.checkPropertyIds(propertyIds);
return checkConfigPropertyIds(baseUnsupported, "Clusters");
}
}