/**
* 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.Collections;
import java.util.EnumSet;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import org.apache.ambari.server.AmbariException;
import org.apache.ambari.server.DuplicateResourceException;
import org.apache.ambari.server.StaticallyInject;
import org.apache.ambari.server.configuration.Configuration;
import org.apache.ambari.server.controller.predicate.EqualsPredicate;
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.orm.dao.RemoteAmbariClusterDAO;
import org.apache.ambari.server.orm.entities.RemoteAmbariClusterEntity;
import org.apache.ambari.server.orm.entities.RemoteAmbariClusterServiceEntity;
import org.apache.ambari.server.security.authorization.RoleAuthorization;
import org.apache.ambari.server.view.RemoteAmbariClusterRegistry;
import org.apache.ambari.view.MaskException;
import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.base.Strings;
import com.google.inject.Inject;
/**
* Resource Provider for Remote Cluster
*/
@StaticallyInject
public class RemoteClusterResourceProvider extends AbstractAuthorizedResourceProvider {
/**
* Remote Cluster property id constants.
*/
public static final String CLUSTER_NAME_PROPERTY_ID = "ClusterInfo/name";
public static final String CLUSTER_ID_PROPERTY_ID = "ClusterInfo/cluster_id";
public static final String CLUSTER_URL_PROPERTY_ID = "ClusterInfo/url";
public static final String USERNAME_PROPERTY_ID = "ClusterInfo/username";
public static final String PASSWORD_PROPERTY_ID = "ClusterInfo/password";
public static final String SERVICES_PROPERTY_ID = "ClusterInfo/services";
/**
* The logger.
*/
private final static Logger LOG = LoggerFactory.getLogger(RemoteClusterResourceProvider.class);
/**
* The key property ids for a Remote Cluster resource.
*/
private static Map<Resource.Type, String> keyPropertyIds = new HashMap<>();
static {
keyPropertyIds.put(Resource.Type.RemoteCluster, CLUSTER_NAME_PROPERTY_ID);
}
/**
* The property ids for a Remote Cluster resource.
*/
private static Set<String> propertyIds = new HashSet<>();
static {
propertyIds.add(CLUSTER_NAME_PROPERTY_ID);
propertyIds.add(CLUSTER_ID_PROPERTY_ID);
propertyIds.add(CLUSTER_URL_PROPERTY_ID);
propertyIds.add(USERNAME_PROPERTY_ID);
propertyIds.add(PASSWORD_PROPERTY_ID);
propertyIds.add(SERVICES_PROPERTY_ID);
}
@Inject
private static RemoteAmbariClusterDAO remoteAmbariClusterDAO;
@Inject
private static Configuration configuration;
@Inject
private static RemoteAmbariClusterRegistry remoteAmbariClusterRegistry;
/**
* Create a new resource provider.
*/
protected RemoteClusterResourceProvider() {
super(propertyIds, keyPropertyIds);
EnumSet<RoleAuthorization> requiredAuthorizations = EnumSet.of(RoleAuthorization.AMBARI_ADD_DELETE_CLUSTERS);
setRequiredCreateAuthorizations(requiredAuthorizations);
setRequiredDeleteAuthorizations(requiredAuthorizations);
setRequiredUpdateAuthorizations(requiredAuthorizations);
}
@Override
public Map<Resource.Type, String> getKeyPropertyIds() {
return keyPropertyIds;
}
@Override
protected Set<String> getPKPropertyIds() {
return new HashSet<>(keyPropertyIds.values());
}
@Override
public RequestStatus createResourcesAuthorized(Request request) throws SystemException, UnsupportedPropertyException, ResourceAlreadyExistsException, NoSuchParentResourceException {
for (Map<String, Object> properties : request.getProperties()) {
createResources(getCreateCommand(properties));
}
notifyCreate(Resource.Type.RemoteCluster, request);
return getRequestStatus(null);
}
@Override
public Set<Resource> getResources(Request request, Predicate predicate) throws SystemException, UnsupportedPropertyException, NoSuchResourceException, NoSuchParentResourceException {
Set<Resource> resources = new HashSet<>();
Set<String> requestedIds = getRequestPropertyIds(request, predicate);
Set<Map<String, Object>> propertyMaps = getPropertyMaps(predicate);
if (propertyMaps.isEmpty()) {
propertyMaps.add(Collections.<String, Object>emptyMap());
}
for (Map<String, Object> propertyMap : propertyMaps) {
String clusterName = (String) propertyMap.get(CLUSTER_NAME_PROPERTY_ID);
if(!Strings.isNullOrEmpty(clusterName)){
RemoteAmbariClusterEntity cluster = remoteAmbariClusterDAO.findByName(clusterName);
if(cluster == null) {
throw new NoSuchResourceException(String.format("Cluster with name %s cannot be found",clusterName) );
}
resources.add(toResource(requestedIds, cluster));
}else {
for (RemoteAmbariClusterEntity cluster : remoteAmbariClusterDAO.findAll()){
Resource resource = toResource(requestedIds, cluster);
resources.add(resource);
}
}
}
return resources;
}
protected Resource toResource(Set<String> requestedIds, RemoteAmbariClusterEntity cluster) {
Resource resource = new ResourceImpl(Resource.Type.RemoteCluster);
setResourceProperty(resource, CLUSTER_NAME_PROPERTY_ID, cluster.getName(), requestedIds);
setResourceProperty(resource, CLUSTER_ID_PROPERTY_ID, cluster.getId(), requestedIds);
setResourceProperty(resource, CLUSTER_URL_PROPERTY_ID, cluster.getUrl(), requestedIds);
setResourceProperty(resource, USERNAME_PROPERTY_ID, cluster.getUsername(), requestedIds);
ArrayList<String> services = new ArrayList<>();
for (RemoteAmbariClusterServiceEntity remoteClusterServiceEntity : cluster.getServices()) {
services.add(remoteClusterServiceEntity.getServiceName());
}
setResourceProperty(resource, SERVICES_PROPERTY_ID,services, requestedIds);
return resource;
}
@Override
public RequestStatus updateResourcesAuthorized(Request request, Predicate predicate) throws SystemException, UnsupportedPropertyException, NoSuchResourceException, NoSuchParentResourceException {
Iterator<Map<String,Object>> iterator = request.getProperties().iterator();
if (iterator.hasNext()) {
for (Map<String, Object> propertyMap : getPropertyMaps(iterator.next(), predicate)) {
modifyResources(getUpdateCommand(propertyMap));
}
}
notifyUpdate(Resource.Type.RemoteCluster, request, predicate);
return getRequestStatus(null);
}
@Override
protected RequestStatus deleteResourcesAuthorized(Request request, Predicate predicate)
throws SystemException, UnsupportedPropertyException, NoSuchResourceException, NoSuchParentResourceException {
modifyResources(getDeleteCommand(predicate));
notifyDelete(Resource.Type.ViewInstance, predicate);
return getRequestStatus(null);
}
/**
* Get the command to create the RemoteAmbariCluster
* @param properties
* @return A command to create the RemoteAmbariCluster
*/
private Command<Void> getCreateCommand(final Map<String, Object> properties) {
return new Command<Void>() {
@Override
public Void invoke() throws AmbariException {
String name = (String)properties.get(CLUSTER_NAME_PROPERTY_ID);
if(StringUtils.isEmpty(name)){
throw new IllegalArgumentException("Cluster Name cannot ne null or Empty");
}
if(remoteAmbariClusterDAO.findByName(name) != null){
throw new DuplicateResourceException(String.format("Remote cluster with name %s already exists",name));
}
saveOrUpdateRemoteAmbariClusterEntity(properties,false);
return null;
}
};
}
/**
* Get the command to update the RemoteAmbariCluster
* @param properties
* @return A command to update the RemoteAmbariCluster
*/
private Command<Void> getUpdateCommand(final Map<String, Object> properties) {
return new Command<Void>() {
@Override
public Void invoke() throws AmbariException {
String name = (String)properties.get(CLUSTER_NAME_PROPERTY_ID);
if (StringUtils.isEmpty(name)) {
throw new IllegalArgumentException("Cluster Name cannot be null or Empty");
}
String id = (String)properties.get(CLUSTER_ID_PROPERTY_ID);
if (StringUtils.isEmpty(id)) {
throw new IllegalArgumentException("Cluster Id cannot be null or Empty");
}
saveOrUpdateRemoteAmbariClusterEntity(properties,true);
return null;
}
};
}
/**
* Save or update Remote Ambari Cluster Entity to database
*
* @param properties
* @param update
* @throws AmbariException
*/
private void saveOrUpdateRemoteAmbariClusterEntity(Map<String, Object> properties,boolean update) throws AmbariException {
String name = (String)properties.get(CLUSTER_NAME_PROPERTY_ID);
String url = (String)properties.get(CLUSTER_URL_PROPERTY_ID);
String username = (String)properties.get(USERNAME_PROPERTY_ID);
String password = (String)properties.get(PASSWORD_PROPERTY_ID);
if (StringUtils.isEmpty(url) && StringUtils.isEmpty(username)) {
throw new IllegalArgumentException("Url or username cannot be null");
}
RemoteAmbariClusterEntity entity ;
if (update) {
Long id = Long.valueOf((String) properties.get(CLUSTER_ID_PROPERTY_ID));
entity = remoteAmbariClusterDAO.findById(id);
if (entity == null) {
throw new IllegalArgumentException(String.format("Cannot find cluster with Id : \"%s\"", id));
}
} else {
entity = remoteAmbariClusterDAO.findByName(name);
if (entity != null) {
throw new DuplicateResourceException(String.format("Cluster with name : \"%s\" already exists", name));
}
}
// Check Password not null for create
//Check username matches the entity username if password not present
if(StringUtils.isBlank(password) && !update){
throw new IllegalArgumentException("Password cannot be null");
}else if(StringUtils.isBlank(password) && update && !username.equals(entity.getUsername())){
throw new IllegalArgumentException("Failed to update. Username does not match.");
}
if (entity == null) {
entity = new RemoteAmbariClusterEntity();
}
entity.setName(name);
entity.setUrl(url);
try {
if (password != null) {
entity.setUsername(username);
entity.setPassword(password);
}
} catch (MaskException e) {
throw new IllegalArgumentException("Failed to create new Remote Cluster " + name + ". Illegal Password");
}
try {
remoteAmbariClusterRegistry.saveOrUpdate(entity,update);
} catch (Exception e) {
throw new IllegalArgumentException("Failed to create new Remote Cluster " + name +". " + e.getMessage(),e);
}
}
/**
* Get the command to delete the Cluster
* @param predicate
* @return The delete command
*/
private Command<Void> getDeleteCommand(final Predicate predicate) {
return new Command<Void>() {
@Override
public Void invoke() throws AmbariException {
Comparable deletedCluster = ((EqualsPredicate) predicate).getValue();
String toDelete = deletedCluster.toString();
RemoteAmbariClusterEntity clusterEntity = remoteAmbariClusterDAO.findByName(toDelete);
if(clusterEntity == null){
throw new IllegalArgumentException("The Cluster "+ toDelete +" does not exist");
}
remoteAmbariClusterRegistry.delete(clusterEntity);
return null;
}
};
}
}