Google Data

public class Program {
  public static void main(String[] args) throws FileNotFoundException, IOException,
      ServiceException {
    AdWordsUser user = new AdWordsUser(); 
    // Download all campaigns.
    GetReport(user, ReportDefinitionReportType.CAMPAIGN_PERFORMANCE_REPORT,
        new String[] { "Id", "Name", "Status", "Amount" }, "AllCampaigns.xml");

    // Download all adgroups.
    GetReport(user, ReportDefinitionReportType.ADGROUP_PERFORMANCE_REPORT,
        new String[] { "Id", "Name", "Status", "CampaignId"}, "AllAdGroups.xml");

    // Download all ads.
    GetReport(user, ReportDefinitionReportType.AD_PERFORMANCE_REPORT,
        new String[] { "Id", "Headline", "Description1", "Description2", "DisplayUrl",
        "Url", "Status", "AdGroupId" }, "AllAds.xml");

    // Download all keywords.
    GetReport(user, ReportDefinitionReportType.KEYWORDS_PERFORMANCE_REPORT,
        new String[] { "AdGroupId", "Id", "KeywordText", "KeywordMatchType", "IsNegative"},
        "AllKeywords.xml");

    // Download all placements.
    GetReport(user, ReportDefinitionReportType.MANAGED_PLACEMENTS_PERFORMANCE_REPORT,
        new String[] { "AdGroupId", "Id", "KeywordText", "KeywordMatchType", "IsNegative"},
        "AllPlacements.xml");
  }
  
  public static void GetReport(AdWordsUser user, ReportDefinitionReportType reportType,
      String[] fields, String fileName) throws FileNotFoundException, IOException,
      ServiceException {
    long reportDefinitionId = GenerateReportDefinition(user, reportType, fields);
    DownloadReport(user, reportDefinitionId,
     fileName);
  }
  
  public static void DownloadReport(AdWordsUser user, long reportDefinitionId,
     String fileName) throws FileNotFoundException, IOException {
     String url = "https://adwords.google.com/api/adwords/reportdownload?__rd=" +
         reportDefinitionId;

    HttpURLConnection urlConn = (HttpURLConnection) new URL(url).openConnection();
    urlConn.setRequestMethod("GET");
    urlConn.setRequestProperty("Authorization", "GoogleLogin auth=" +
        user.getRegisteredAuthToken());

    if (user.getClientCustomerId() != null) {
      urlConn.setRequestProperty("clientCustomerId", user.getClientCustomerId());
    } else if (user.getClientEmail() != null) {
      urlConn.setRequestProperty("clientEmail", user.getClientEmail());
    } else {
      urlConn.setRequestProperty("clientEmail", user.getEmail());
    }

    urlConn.connect();
    writeStreamToStream(urlConn.getInputStream(), new FileOutputStream(new File(fileName)));
  }

  public static long GenerateReportDefinition(AdWordsUser user,
      ReportDefinitionReportType reportType, String[] fields) throws ApiException,
      RemoteException, ServiceException {
    // Get the ReportDefinitionService.
    ReportDefinitionServiceInterface reportDefinitionService = user
        .getService(AdWordsService.V201003.REPORT_DEFINITION_SERVICE);

    // Create selector.
    Selector selector = new Selector();
    selector.setFields(fields);

    // Create report definition.
    ReportDefinition reportDefinition = new ReportDefinition();
    reportDefinition.setReportName("Structure report demo - #" +
        System.currentTimeMillis());
    reportDefinition.setDateRangeType(ReportDefinitionDateRangeType.TODAY);
    reportDefinition.setReportType(reportType);
    reportDefinition.setDownloadFormat(DownloadFormat.XML);
    reportDefinition.setSelector(selector);

    // Create operations.
    ReportDefinitionOperation operation = new ReportDefinitionOperation();
    operation.setOperand(reportDefinition);
    operation.setOperator(Operator.ADD);

    ReportDefinitionOperation[] operations = new ReportDefinitionOperation[] { operation };

    // Add report definition.
    ReportDefinition[] result = reportDefinitionService.mutate(operations);
    return result[0].getId();
  }
}