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// Copyright 2013 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.v201302.campaignmanagement;

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

import com.google.api.ads.adwords.axis.v201302.cm.CampaignCriterion;

import com.google.api.ads.adwords.axis.v201302.cm.CampaignCriterionOperation;

import com.google.api.ads.adwords.axis.v201302.cm.CampaignCriterionReturnValue;

import com.google.api.ads.adwords.axis.v201302.cm.CampaignCriterionServiceInterface;

import com.google.api.ads.adwords.axis.v201302.cm.Operator;

import com.google.api.ads.adwords.axis.v201302.cm.Platform;

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 sets a bid modifier for the mobile platform on given campaign.

 * NOTE: the campaign must be an enhanced type of campaign.

 * To get campaigns, run basicoperations/GetCampaigns.java.

 * To enhance a campaign, run campaignmanagement/SetCampaignEnhanced.java.

 *

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

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

 *

 * Tags: CampaignCriterionService.mutate

 *

 * @author Kevin Winter

 */

public class SetBidModifier {

  private static final double BID_MODIFIER = 1.5;

  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();

    Long campaignId = Long.valueOf("INSERT_CAMPAIGN_ID_HERE");

    AdWordsServices adWordsServices = new AdWordsServices();

    runExample(adWordsServices, session, campaignId);

  }

  public static void runExample(

      AdWordsServices adWordsServices, AdWordsSession session, Long campaignId) throws Exception {

    // Get the CampaignCriterionService.

    CampaignCriterionServiceInterface campaignCriterionService =

        adWordsServices.get(session, CampaignCriterionServiceInterface.class);

    // Create mobile platform. The ID can be found in the documentation.

    // https://developers.google.com/adwords/api/docs/appendix/platforms

    Platform mobile = new Platform();

    mobile.setId(30001L);

    // Create criterion with modified bid.

    CampaignCriterion campaignCriterion = new CampaignCriterion();

    campaignCriterion.setCampaignId(campaignId);

    campaignCriterion.setCriterion(mobile);

    campaignCriterion.setBidModifier(BID_MODIFIER);

    // Create SET operation.

    CampaignCriterionOperation operation = new CampaignCriterionOperation();

    operation.setOperand(campaignCriterion);

    operation.setOperator(Operator.SET);

    // Update campaign criterion.

    CampaignCriterionReturnValue result =

        campaignCriterionService.mutate(new CampaignCriterionOperation[] {operation});

    for (CampaignCriterion campaignCriterionResult : result.getValue()) {

      System.out.printf("Campaign criterion with campaign id '%s', criterion id '%s', "

          + "and type '%s' was modified with bid %.2f.\n",

          campaignCriterionResult.getCampaignId(),

          campaignCriterionResult.getCriterion().getId(),

          campaignCriterionResult.getCriterion().getType(),

          campaignCriterionResult.getBidModifier());

    }

  }

}