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// Copyright 2012 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 adwords.axis.v201309.reporting;

import com.google.api.ads.adwords.axis.factory.AdWordsServices;

import com.google.api.ads.adwords.axis.v201309.cm.ReportDefinitionField;

import com.google.api.ads.adwords.axis.v201309.cm.ReportDefinitionReportType;

import com.google.api.ads.adwords.axis.v201309.cm.ReportDefinitionServiceInterface;

import com.google.api.ads.adwords.lib.client.AdWordsSession;

import com.google.api.ads.common.lib.auth.OfflineCredentials;

import com.google.api.ads.common.lib.auth.OfflineCredentials.Api;

import com.google.api.client.auth.oauth2.Credential;

/**

 * This example gets report fields.

 *

 * Credentials and properties in {@code fromFile()} are pulled from the

 * "ads.properties" file. See README for more info.

 *

 * Tags: ReportDefinitionService.getReportFields

 *

 * @author Kevin Winter

 */

public class GetReportFields {

  public static void main(String[] args) throws Exception {

    // Generate a refreshable OAuth2 credential similar to a ClientLogin token

    // and can be used in place of a service account.

    Credential oAuth2Credential = new OfflineCredentials.Builder()

        .forApi(Api.ADWORDS)

        .fromFile()

        .build()

        .generateCredential();

    // Construct an AdWordsSession.

    AdWordsSession session = new AdWordsSession.Builder()

        .fromFile()

        .withOAuth2Credential(oAuth2Credential)

        .build();

    AdWordsServices adWordsServices = new AdWordsServices();

    runExample(adWordsServices, session);

  }

  public static void runExample(

      AdWordsServices adWordsServices, AdWordsSession session) throws Exception {

    // Get the ReportDefinitionService.

    ReportDefinitionServiceInterface reportDefinitionService =

        adWordsServices.get(session, ReportDefinitionServiceInterface.class);

    // Get report fields.

    ReportDefinitionField[] reportDefinitionFields =

        reportDefinitionService

            .getReportFields(ReportDefinitionReportType.KEYWORDS_PERFORMANCE_REPORT);

    // Display report fields.

    System.out.println("Available fields for report:");

    for (ReportDefinitionField reportDefinitionField : reportDefinitionFields) {

      System.out.print("\t" + reportDefinitionField.getFieldName() + "("

          + reportDefinitionField.getFieldType() + ") := [");

      if (reportDefinitionField.getEnumValues() != null) {

        for (String enumValue : reportDefinitionField.getEnumValues()) {

          System.out.print(enumValue + ", ");

        }

      }

      System.out.println("]");

    }

  }

}