// Copyright 2010 Google Inc. All Rights Reserved.
/* 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 example;
import com.google.gdata.client.analytics.AnalyticsService;
import com.google.gdata.client.analytics.DataQuery;
import com.google.gdata.data.analytics.DataEntry;
import com.google.gdata.data.analytics.DataFeed;
import com.google.gdata.util.ServiceException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
/**
* Provides a wrapper to access data from the Google Analytics API.
* @author api.nickm@google.com (Nick Mihailovski)
*/
public class DataManager {
private AnalyticsService analyticsService;
/**
* Constructor.
* @param analyticsService An AnalyticsService object.
*/
public DataManager(AnalyticsService analyticsService) {
this.analyticsService = analyticsService;
}
/**
* Returns a list of all the dimension values.
* @param dataQuery A Data eport API query to send to the Data Export API.
* @return A list of dimension values.
*/
public List<String> getDimensionValues(DataQuery dataQuery) {
DataFeed resultFeed = getFeed(dataQuery);
List<String> output = new ArrayList<String>();
for (DataEntry entry : resultFeed.getEntries()) {
output.add(entry.getDimensions().get(0).getValue());
}
return output;
}
/**
* Retrieves a data from the Google Analytics Data Export API. Any
* exceptions are printed to the console and the program terminates.
* @param dataQuery The query to send to the API.
* @retun The DataFeed response object from the API.
*/
public DataFeed getFeed(DataQuery dataQuery) {
try {
System.out.println(dataQuery.getUrl().toString());
return analyticsService.getFeed(dataQuery, DataFeed.class);
} catch (IOException e) {
System.err.println("IO Exception: " + e.getMessage());
System.exit(0);
} catch (ServiceException e) {
System.err.println("Service Exception: " + e.getMessage());
System.err.println(dataQuery.getUrl().toString());
System.exit(0);
}
return null;
}
}