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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.basicoperations;

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

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

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

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

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

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

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

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

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

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

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

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

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

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 updates a campaign by setting the status to PAUSED. To get

 * campaigns, run GetCampaigns.java.

 *

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

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

 *

 * Tags: CampaignService.mutate

 *

 * @author Kevin Winter

 */

public class UpdateCampaign {

	public static Long runExample(Long campaignId, String status, String name, Long amount ) 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();

		// Get the CampaignService.

		CampaignServiceInterface campaignService =

			adWordsServices.get(session, CampaignServiceInterface.class);

		// Create campaign with updated status.

		Campaign campaign = new Campaign();

		campaign.setId(campaignId);

		if(status!=null && !("").equalsIgnoreCase(status)){

			campaign.setStatus(CampaignStatus.fromString(status));

		}

		if(name!=null && !("").equalsIgnoreCase(name)){

			campaign.setName(name);

		}

		if(amount>-1l){

			// Get the BudgetService.

			BudgetServiceInterface budgetService =

				adWordsServices.get(session, BudgetServiceInterface.class);

			// Create a budget, which can be shared by multiple campaigns.

			Budget sharedBudget = new Budget();

			sharedBudget.setName(name +"#" + System.currentTimeMillis());

			Money budgetAmount = new Money();

			budgetAmount.setMicroAmount(amount);

			sharedBudget.setAmount(budgetAmount);

			sharedBudget.setDeliveryMethod(BudgetBudgetDeliveryMethod.STANDARD);

			sharedBudget.setPeriod(BudgetBudgetPeriod.DAILY);

			BudgetOperation budgetOperation = new BudgetOperation();

			budgetOperation.setOperand(sharedBudget);

			budgetOperation.setOperator(Operator.ADD);

			// Add the budget

			Long budgetId =

				budgetService.mutate(new BudgetOperation[] {budgetOperation}).getValue(0).getBudgetId();

			Budget budget = new Budget();

			budget.setBudgetId(budgetId);

			campaign.setBudget(budget);

		}

		// Create operations.

		CampaignOperation operation = new CampaignOperation();

		operation.setOperand(campaign);

		operation.setOperator(Operator.SET);

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

		if((status!=null && !("").equalsIgnoreCase(status)) || (name!=null && !("").equalsIgnoreCase(name)) || (amount>-1l)){

			// Update campaign.

			CampaignReturnValue result = campaignService.mutate(operations);

			Long updatedCampaignId = 0l;

			// Display campaigns.

			for (Campaign campaignResult : result.getValue()) {

				System.out.println("Campaign with name \"" + campaignResult.getName() + "\", id \""

						+ campaignResult.getId() + "\", and budget delivery method \""

						+ campaignResult.getBudget().getDeliveryMethod() + "\" was updated.");

				updatedCampaignId = campaignResult.getId();

			}

			return updatedCampaignId;

		}

		return 0l;

	}

}