Sample for the Google Analytics reporting API with java

build.gradle

group 'gropuid'
version '1.0-SNAPSHOT'

apply plugin: 'java'

sourceCompatibility = 1.5

repositories {
    mavenCentral()
}

dependencies {
    testCompile group: 'junit', name: 'junit', version: '4.11'
    compile 'com.google.apis:google-api-services-analyticsreporting:v4-rev114-1.22.0'
    compile group: 'com.google.oauth-client', name: 'google-oauth-client-jetty', version: '1.11.0-beta'
}

GoogleAnalyticsReportingSample.java

import com.google.api.client.extensions.java6.auth.oauth2.AuthorizationCodeInstalledApp;
import com.google.api.client.extensions.jetty.auth.oauth2.LocalServerReceiver;
import com.google.api.client.auth.oauth2.Credential;
import com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeFlow;
import com.google.api.client.googleapis.auth.oauth2.GoogleClientSecrets;
import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.jackson2.JacksonFactory;
import com.google.api.client.util.store.DataStoreFactory;
import com.google.api.client.util.store.FileDataStoreFactory;
import com.google.api.services.analyticsreporting.v4.AnalyticsReporting;
import com.google.api.services.analyticsreporting.v4.AnalyticsReportingScopes;
import com.google.api.services.analyticsreporting.v4.model.DateRangeValues;
import com.google.api.services.analyticsreporting.v4.model.DateRange;
import com.google.api.services.analyticsreporting.v4.model.Dimension;
import com.google.api.services.analyticsreporting.v4.model.Metric;
import com.google.api.services.analyticsreporting.v4.model.ReportRequest;
import com.google.api.services.analyticsreporting.v4.model.GetReportsRequest;
import com.google.api.services.analyticsreporting.v4.model.GetReportsResponse;
import com.google.api.services.analyticsreporting.v4.model.ColumnHeader;
import com.google.api.services.analyticsreporting.v4.model.Report;
import com.google.api.services.analyticsreporting.v4.model.MetricHeaderEntry;
import com.google.api.services.analyticsreporting.v4.model.ReportRow;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;

/**
 * Sample for the Google Analytics reporting API with java
 *
 * @author Linda Lawton
 */
public class GoogleAnalyticsReportingSample {

    /**
     * Be sure to specify the name of your application. If the application name is {@code null} or
     * blank, the application will log a warning. Suggested format is "MyCompany-ProductName/1.0".
     */
    private static final String APPLICATION_NAME = "DAIMTO-GoogleAnalyticsReportingSample/1.0";

    /** Directory to store user credentials. */
    private static final java.io.File DATA_STORE_DIR =
            new java.io.File(System.getProperty("user.home"), ".store/reporting_sample");

    /**
     * Global instance of the {@link DataStoreFactory}. The best practice is to make it a single
     * globally shared instance across your application.
     */
    private static FileDataStoreFactory dataStoreFactory;

    /** Global instance of the HTTP transport. */
    private static HttpTransport httpTransport;

    /** Global instance of the JSON factory. */
    private static final JsonFactory JSON_FACTORY = JacksonFactory.getDefaultInstance();

    private static AnalyticsReporting service ;

    /** Authorizes the installed application to access user's private data.
     *  client_secrets.json can be downloaded from Google developer console.
     *
     *  Make sure to enable the Google Analytics reporting api and create Oauth2 credentials.
     * */
    private static Credential authorize() throws Exception {
        // load client secrets
        GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(JSON_FACTORY,
                new InputStreamReader(GoogleAnalyticsReportingSample.class.getResourceAsStream("/client_secrets.json")));

        // set up authorization code flow
        GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(
                httpTransport, JSON_FACTORY, clientSecrets,
                Collections.singleton(AnalyticsReportingScopes.ANALYTICS_READONLY)).setDataStoreFactory(
                dataStoreFactory).build();
        // authorize
        return new AuthorizationCodeInstalledApp(flow, new LocalServerReceiver()).authorize("user");
    }

    public static void main(String[] args) {
        try {
            httpTransport = GoogleNetHttpTransport.newTrustedTransport();
            dataStoreFactory = new FileDataStoreFactory(DATA_STORE_DIR);
            // authorization
            Credential credential = authorize();
            // set up global Analytics instance
            service = new  AnalyticsReporting.Builder(httpTransport, JSON_FACTORY, credential).setApplicationName(
                    APPLICATION_NAME).build();
            // run commands
            // Fetch Google Analytics Data
            GetReportsResponse response = fetchData(service);
            // Print Results
            printResults(response.getReports());
            // success!
            return;
        } catch (IOException e) {
            System.err.println(e.getMessage());
        } catch (Throwable t) {
            t.printStackTrace();
        }
        System.exit(1);
    }

    /** Fetching the data from Google Analytics and returning the response*/
    public static GetReportsResponse fetchData(AnalyticsReporting service) throws IOException{

        DateRange dateRange = new DateRange();
        dateRange.setStartDate("2017-06-11");
        dateRange.setEndDate("2017-06-13");

        // Create the Metrics object.
        Metric sessions = new Metric()
                .setExpression("ga:sessions")
                .setAlias("sessions");

        //Create the Dimensions object.
        Dimension browser = new Dimension()
                .setName("ga:browser");

        // Create the ReportRequest object.
        ReportRequest request = new ReportRequest()
                .setViewId("ga:78110423")
                .setDateRanges(Arrays.asList(dateRange))
                .setDimensions(Arrays.asList(browser))
                .setMetrics(Arrays.asList(sessions));

        ArrayList<ReportRequest> requests = new ArrayList<ReportRequest>();
        requests.add(request);

        // Create the GetReportsRequest object.
        GetReportsRequest getReport = new GetReportsRequest()
                .setReportRequests(requests);

        // Call the batchGet method.
        return service.reports().batchGet(getReport).execute();
    }

    /** Printing the results. */
    private static void printResults(List<Report> reports) {
        for (Report report : reports) {
            ColumnHeader header = report.getColumnHeader();
            List<String> dimensionHeaders = header.getDimensions();
            List<MetricHeaderEntry> metricHeaders = header.getMetricHeader().getMetricHeaderEntries();
            List<ReportRow> rows = report.getData().getRows();

            for (ReportRow row : rows) {
                List<String> dimensions = row.getDimensions();
                List<DateRangeValues> metrics = row.getMetrics();
                for (int i = 0; i < dimensionHeaders.size() && i < dimensions.size(); i++) {
                    System.out.println(dimensionHeaders.get(i) + ": " + dimensions.get(i));
                }

                for (int j = 0; j < metrics.size(); j++) {
                    System.out.print("Date Range (" + j + "): ");
                    DateRangeValues values = metrics.get(j);
                    for (int k = 0; k < values.getValues().size() && k < metricHeaders.size(); k++) {
                        System.out.println(metricHeaders.get(k).getName() + ": " + values.getValues().get(k));
                    }
                }
            }
        }
    }
}