/**
* 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.StaticallyInject;
import org.apache.ambari.server.controller.AmbariManagementController;
import org.apache.ambari.server.controller.ExtensionLinkRequest;
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.Resource.Type;
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.orm.dao.ExtensionLinkDAO;
import org.apache.ambari.server.orm.entities.ExtensionLinkEntity;
import com.google.inject.Inject;
/**
* An extension version is like a stack version but it contains custom services. Linking an extension
* version to the current stack version allows the cluster to install the custom services contained in
* the extension version.
*/
@StaticallyInject
public class ExtensionLinkResourceProvider extends AbstractControllerResourceProvider {
public static final String LINK_ID_PROPERTY_ID = PropertyHelper
.getPropertyId("ExtensionLink", "link_id");
public static final String STACK_NAME_PROPERTY_ID = PropertyHelper
.getPropertyId("ExtensionLink", "stack_name");
public static final String STACK_VERSION_PROPERTY_ID = PropertyHelper
.getPropertyId("ExtensionLink", "stack_version");
public static final String EXTENSION_NAME_PROPERTY_ID = PropertyHelper
.getPropertyId("ExtensionLink", "extension_name");
public static final String EXTENSION_VERSION_PROPERTY_ID = PropertyHelper
.getPropertyId("ExtensionLink", "extension_version");
private static Set<String> pkPropertyIds = new HashSet<>(
Arrays.asList(new String[]{LINK_ID_PROPERTY_ID, STACK_NAME_PROPERTY_ID, STACK_VERSION_PROPERTY_ID, EXTENSION_NAME_PROPERTY_ID, EXTENSION_VERSION_PROPERTY_ID}));
@Inject
private static ExtensionLinkDAO dao;
protected ExtensionLinkResourceProvider(Set<String> propertyIds,
Map<Type, String> keyPropertyIds,
AmbariManagementController managementController) {
super(propertyIds, keyPropertyIds, managementController);
}
@Override
public RequestStatus createResources(Request request)
throws SystemException, UnsupportedPropertyException,
NoSuchParentResourceException, ResourceAlreadyExistsException {
final Set<ExtensionLinkRequest> requests = new HashSet<>();
for (Map<String, Object> propertyMap : request.getProperties()) {
requests.add(getRequest(propertyMap));
}
createResources(new Command<Void>() {
@Override
public Void invoke() throws AmbariException {
for (ExtensionLinkRequest extensionLinkRequest : requests) {
getManagementController().createExtensionLink(extensionLinkRequest);
}
return null;
}
});
if (requests.size() > 0) {
//Need to reread the stacks/extensions directories so the latest information is available
try {
getManagementController().updateStacks();
} catch (AmbariException e) {
throw new SystemException(e.getMessage(), e);
}
notifyCreate(Resource.Type.ExtensionLink, request);
}
return getRequestStatus(null);
}
protected RequestStatus deleteResourcesAuthorized(Request request, Predicate predicate)
throws SystemException, UnsupportedPropertyException,
NoSuchResourceException, NoSuchParentResourceException {
final Set<ExtensionLinkRequest> requests = new HashSet<>();
if (predicate == null) {
requests.add(getRequest(Collections.<String, Object>emptyMap()));
} else {
for (Map<String, Object> propertyMap : getPropertyMaps(predicate)) {
requests.add(getRequest(propertyMap));
}
}
RequestStatusResponse response = modifyResources(new Command<RequestStatusResponse>() {
@Override
public RequestStatusResponse invoke() throws AmbariException {
for (ExtensionLinkRequest extensionLinkRequest : requests) {
getManagementController().deleteExtensionLink(extensionLinkRequest);
}
return null;
}
});
//Need to reread the stacks/extensions directories so the latest information is available
try {
getManagementController().updateStacks();
} catch (AmbariException e) {
throw new SystemException(e.getMessage(), e);
}
notifyDelete(Resource.Type.ExtensionLink, predicate);
return getRequestStatus(response);
}
@Override
public Set<Resource> getResources(Request request, Predicate predicate)
throws SystemException, UnsupportedPropertyException,
NoSuchResourceException, NoSuchParentResourceException {
final Set<Resource> resources = new HashSet<>();
final Set<String> requestedIds = getRequestPropertyIds(request, predicate);
final Set<ExtensionLinkRequest> requests = new HashSet<>();
if (predicate == null) {
requests.add(getRequest(Collections.<String, Object>emptyMap()));
} else {
for (Map<String, Object> propertyMap : getPropertyMaps(predicate)) {
requests.add(getRequest(propertyMap));
}
}
Set<ExtensionLinkEntity> entities = new HashSet<>();
for (ExtensionLinkRequest extensionLinkRequest : requests) {
verifyStackAndExtensionExist(extensionLinkRequest);
entities.addAll(dao.find(extensionLinkRequest));
}
for (ExtensionLinkEntity entity : entities) {
Resource resource = new ResourceImpl(Resource.Type.ExtensionLink);
setResourceProperty(resource, LINK_ID_PROPERTY_ID,
entity.getLinkId(), requestedIds);
setResourceProperty(resource, STACK_NAME_PROPERTY_ID,
entity.getStack().getStackName(), requestedIds);
setResourceProperty(resource, STACK_VERSION_PROPERTY_ID,
entity.getStack().getStackVersion(), requestedIds);
setResourceProperty(resource, EXTENSION_NAME_PROPERTY_ID,
entity.getExtension().getExtensionName(), requestedIds);
setResourceProperty(resource, EXTENSION_VERSION_PROPERTY_ID,
entity.getExtension().getExtensionVersion(), requestedIds);
resources.add(resource);
}
return resources;
}
@Override
public RequestStatus updateResources(Request request, Predicate predicate)
throws SystemException, UnsupportedPropertyException,
NoSuchResourceException, NoSuchParentResourceException {
//Need to reread the stacks/extensions directories so the latest information is available
try {
getManagementController().updateStacks();
} catch (AmbariException e) {
throw new SystemException(e.getMessage(), e);
}
notifyUpdate(Resource.Type.ExtensionLink, request, predicate);
return getRequestStatus(null);
}
private void verifyStackAndExtensionExist(ExtensionLinkRequest request) throws NoSuchParentResourceException {
try {
if (request.getStackName() != null && request.getStackVersion() != null) {
getManagementController().getAmbariMetaInfo().getStack(request.getStackName(), request.getStackVersion());
}
if (request.getExtensionName() != null && request.getExtensionVersion() != null) {
getManagementController().getAmbariMetaInfo().getExtension(request.getExtensionName(), request.getExtensionVersion());
}
}
catch (AmbariException ambariException) {
throw new NoSuchParentResourceException(ambariException.getMessage());
}
}
private ExtensionLinkRequest getRequest(Map<String, Object> properties) {
return new ExtensionLinkRequest(
(String) properties.get(LINK_ID_PROPERTY_ID),
(String) properties.get(STACK_NAME_PROPERTY_ID),
(String) properties.get(STACK_VERSION_PROPERTY_ID),
(String) properties.get(EXTENSION_NAME_PROPERTY_ID),
(String) properties.get(EXTENSION_VERSION_PROPERTY_ID));
}
private ExtensionLinkRequest createExtensionLinkRequest(ExtensionLinkEntity entity) {
if (entity == null) {
return null;
}
return new ExtensionLinkRequest(String.valueOf(entity.getLinkId()),
entity.getStack().getStackName(),
entity.getStack().getStackVersion(),
entity.getExtension().getExtensionName(),
entity.getExtension().getExtensionVersion());
}
@Override
protected Set<String> getPKPropertyIds() {
return pkPropertyIds;
}
}