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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.advancedoperations;

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

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

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

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

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

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

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 illustrates how to retrieve the first 10 ad group level bid modifiers.

 * NOTE: the campaign must be an enhanced campaign.

 *

 * Credentials and properties in {@code fromFile()} are pulled from the "ads.properties" file. See

 * README for more info.

 *

 * Tags: AdGroupBidModifierService.get

 *

 * @author Takeshi Hagikura

 */

public class GetAdGroupBidModifier {

  private static final int PAGE_SIZE = 10;

  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 AdGroupBidModifierService.

    AdGroupBidModifierServiceInterface adGroupBidModifierService =

        adWordsServices.get(session, AdGroupBidModifierServiceInterface.class);

    int offset = 0;

    // Create selector.

    Selector selector = new Selector();

    selector.setFields(new String[] {"CampaignId",

        "AdGroupId",

        "BidModifier",

        "Id"});

    selector.setPaging(new Paging(offset, PAGE_SIZE));

    AdGroupBidModifierPage page = adGroupBidModifierService.get(selector);

    if (page.getEntries() != null) {

      for (AdGroupBidModifier bidModifierResult : page.getEntries()) {

        String bidModifierValue =

            bidModifierResult.getBidModifier() != null

                ? bidModifierResult.getBidModifier().toString()

                : "unset";

        System.out.printf("Campaign ID '%d', AdGroup ID '%d', Criterion ID '%d', "

            + "has ad group level modifier: '%s'\n",

            bidModifierResult.getCampaignId(),

            bidModifierResult.getAdGroupId(),

            bidModifierResult.getCriterion().getId(),

            bidModifierValue);

      }

    } else {

      System.out.println("No ad group level bid modifiers were found.");

    }

  }

}