/**
* Copyright 2015 ArcBees Inc.
*
* Licensed 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 com.arcbees.gaestudio.server.analytic;
import java.util.UUID;
import com.google.appengine.api.NamespaceManager;
import com.google.appengine.api.datastore.DatastoreService;
import com.google.appengine.api.datastore.DatastoreServiceFactory;
import com.google.appengine.api.datastore.Entity;
import com.google.appengine.api.datastore.Query;
import com.google.inject.Provider;
import static com.arcbees.gaestudio.server.GaeStudioConstants.GAE_NAMESPACE;
import static com.arcbees.gaestudio.server.GaeStudioConstants.GA_CLIENT_KIND;
import static com.arcbees.gaestudio.shared.Constants.CLIENT_ID;
public class GoogleAnalyticClientIdProvider implements Provider<String> {
@Override
public String get() {
DatastoreService datastoreService = DatastoreServiceFactory.getDatastoreService();
String defaultNamespace = NamespaceManager.get();
NamespaceManager.set(GAE_NAMESPACE);
Query query = new Query(GA_CLIENT_KIND);
Entity entity = datastoreService.prepare(query).asSingleEntity();
String clientId;
if (entity == null) {
entity = new Entity(GA_CLIENT_KIND);
clientId = UUID.randomUUID().toString();
entity.setProperty(CLIENT_ID, clientId);
datastoreService.put(entity);
} else {
clientId = entity.getProperty(CLIENT_ID).toString();
}
NamespaceManager.set(defaultNamespace);
return clientId;
}
}