/**
* 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.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.apache.ambari.server.AmbariException;
import org.apache.ambari.server.api.services.AmbariMetaInfo;
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;
import org.apache.ambari.server.state.AutoDeployInfo;
import org.apache.ambari.server.state.DependencyConditionInfo;
import org.apache.ambari.server.state.DependencyInfo;
/**
* Resource provider for Stack Dependency resource.
*/
public class StackDependencyResourceProvider extends AbstractResourceProvider {
// ----- Property ID constants ---------------------------------------------
protected static final String STACK_NAME_ID =
PropertyHelper.getPropertyId("Dependencies", "stack_name");
protected static final String STACK_VERSION_ID =
PropertyHelper.getPropertyId("Dependencies", "stack_version");
protected static final String DEPENDENT_SERVICE_NAME_ID =
PropertyHelper.getPropertyId("Dependencies", "dependent_service_name");
protected static final String DEPENDENT_COMPONENT_NAME_ID =
PropertyHelper.getPropertyId("Dependencies", "dependent_component_name");
protected static final String SERVICE_NAME_ID =
PropertyHelper.getPropertyId("Dependencies", "service_name");
protected static final String COMPONENT_NAME_ID =
PropertyHelper.getPropertyId("Dependencies", "component_name");
protected static final String SCOPE_ID =
PropertyHelper.getPropertyId("Dependencies", "scope");
protected static final String CONDITIONS_ID = PropertyHelper
.getPropertyId("Dependencies","conditions");
protected static final String AUTO_DEPLOY_ENABLED_ID = PropertyHelper
.getPropertyId("auto_deploy", "enabled");
protected static final String AUTO_DEPLOY_LOCATION_ID = PropertyHelper
.getPropertyId("auto_deploy", "location");
// Primary Key Fields
private static Set<String> pkPropertyIds =
new HashSet<>(Arrays.asList(new String[]{
SERVICE_NAME_ID, COMPONENT_NAME_ID}));
/**
* Provides stack information
*/
private static AmbariMetaInfo ambariMetaInfo;
// ----- Constructors ----------------------------------------------------
/**
* Constructor.
*
* @param propertyIds the property ids
* @param keyPropertyIds the key property ids
*/
protected StackDependencyResourceProvider(Set<String> propertyIds,
Map<Resource.Type, String> keyPropertyIds) {
super(propertyIds, keyPropertyIds);
}
/**
* Static initialization.
*
* @param metaInfo meta info instance
*/
public static void init(AmbariMetaInfo metaInfo) {
ambariMetaInfo = metaInfo;
}
// ----- ResourceProvider ------------------------------------------------
@Override
protected Set<String> getPKPropertyIds() {
return pkPropertyIds;
}
@Override
public Set<Resource> getResources(Request request, Predicate predicate)
throws SystemException, UnsupportedPropertyException,
NoSuchResourceException, NoSuchParentResourceException {
Set<Resource> resources = new HashSet<>();
Set<Map<String, Object>> requestProps = getPropertyMaps(predicate);
for (Map<String, Object> properties : requestProps) {
try {
resources.addAll(getDependencyResources(properties,
getRequestPropertyIds(request, predicate)));
} catch (NoSuchResourceException e) {
if (requestProps.size() == 1) {
throw e;
}
} catch (NoSuchParentResourceException e) {
if (requestProps.size() == 1) {
throw e;
}
}
}
return resources;
}
@Override
public RequestStatus createResources(Request request)
throws SystemException, UnsupportedPropertyException,
ResourceAlreadyExistsException, NoSuchParentResourceException {
// should not get here as service doesn't allow POST and should return 405
throw new SystemException("Stack resources are read only");
}
@Override
public RequestStatus updateResources(Request request, Predicate predicate)
throws SystemException, UnsupportedPropertyException,
NoSuchResourceException, NoSuchParentResourceException {
// should not get here as service doesn't allow PUT and should return 405
throw new SystemException("Stack resources are read only");
}
@Override
public RequestStatus deleteResources(Request request, Predicate predicate)
throws SystemException, UnsupportedPropertyException,
NoSuchResourceException, NoSuchParentResourceException {
// should not get here as service doesn't allow DELETE and should return 405
throw new SystemException("Stack resources are read only");
}
// ----- Instance Methods ------------------------------------------------
/**
* Get dependencies resources.
*
* @param properties request properties
* @param requestedIds requested id's
*
* @return collection of dependency resources
*
* @throws SystemException an internal error occurred
* @throws NoSuchParentResourceException parent resource not found
* @throws NoSuchResourceException dependency resource not found
*/
private Collection<Resource> getDependencyResources(Map<String, Object> properties, Set<String> requestedIds)
throws SystemException, NoSuchParentResourceException, NoSuchResourceException {
final String stackName = (String) properties.get(STACK_NAME_ID);
final String version = (String) properties.get(STACK_VERSION_ID);
final String dependentService = (String) properties.get(DEPENDENT_SERVICE_NAME_ID);
final String dependentComponent = (String) properties.get(DEPENDENT_COMPONENT_NAME_ID);
final String dependencyName = (String) properties.get(COMPONENT_NAME_ID);
List<DependencyInfo> dependencies = new ArrayList<>();
if (dependencyName != null) {
dependencies.add(getResources(new Command<DependencyInfo>() {
@Override
public DependencyInfo invoke() throws AmbariException {
return ambariMetaInfo.getComponentDependency(stackName, version, dependentService,
dependentComponent, dependencyName);
}
}));
} else {
dependencies.addAll(getResources(new Command<List<DependencyInfo>>() {
@Override
public List<DependencyInfo> invoke() throws AmbariException {
return ambariMetaInfo.getComponentDependencies(stackName, version,
dependentService, dependentComponent);
}
}));
}
Collection<Resource> resources = new ArrayList<>();
for (DependencyInfo dependency : dependencies) {
if (dependency != null) {
resources.add(toResource(dependency, stackName, version, dependentService,
dependentComponent, requestedIds));
}
}
return resources;
}
/**
* Create a resource instance with dependency information.
*
* @param dependency dependency name
* @param stackName stack name
* @param version stack version
* @param dependentService dependent service
* @param dependentComponent dependent component
* @param requestedIds requested id's
*
* @return a new Resource instance for the dependency
*/
private Resource toResource(DependencyInfo dependency, String stackName,
String version, String dependentService,
String dependentComponent, Set<String> requestedIds) {
Resource resource = new ResourceImpl(Resource.Type.StackServiceComponentDependency);
setResourceProperty(resource, SERVICE_NAME_ID, dependency.getServiceName(), requestedIds);
setResourceProperty(resource, COMPONENT_NAME_ID, dependency.getComponentName(), requestedIds);
setResourceProperty(resource, STACK_NAME_ID, stackName, requestedIds);
setResourceProperty(resource, STACK_VERSION_ID, version, requestedIds);
setResourceProperty(resource, DEPENDENT_SERVICE_NAME_ID, dependentService, requestedIds);
setResourceProperty(resource, DEPENDENT_COMPONENT_NAME_ID, dependentComponent, requestedIds);
setResourceProperty(resource, SCOPE_ID, dependency.getScope(), requestedIds);
AutoDeployInfo autoDeployInfo = dependency.getAutoDeploy();
if (autoDeployInfo != null) {
setResourceProperty(resource, AUTO_DEPLOY_ENABLED_ID,
autoDeployInfo.isEnabled(), requestedIds);
if (autoDeployInfo.getCoLocate() != null) {
setResourceProperty(resource, AUTO_DEPLOY_LOCATION_ID,
autoDeployInfo.getCoLocate(), requestedIds);
}
}
List<DependencyConditionInfo> dependencyConditionsInfo = dependency.getDependencyConditions();
if(dependencyConditionsInfo != null){
setResourceProperty(resource, CONDITIONS_ID,
dependencyConditionsInfo, requestedIds);
}
return resource;
}
}