Subversion Repositories SmartDukaan

package com.google.api.services.content.utils;

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

import com.google.api.client.googleapis.auth.oauth2.GoogleCredential;

import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;

import com.google.api.client.http.HttpTransport;

import com.google.api.client.json.JsonFactory;

import com.google.api.client.json.jackson2.JacksonFactory;

import com.google.api.services.content.ShoppingContent;

import java.io.IOException;

import java.math.BigInteger;

/**

 * Base class for the API samples.

 */

public abstract class BaseSample {

  protected BigInteger merchantId;

  protected ShoppingContent content;

  private final JsonFactory jsonFactory = JacksonFactory.getDefaultInstance();

  private final Credential credential;

  private final HttpTransport httpTransport;

  private final Config config;

  public BaseSample() {

    config = loadConfig();

    merchantId = config.getMerchantId();

    httpTransport = createHttpTransport();

    credential = createCredential();

    credential.setRefreshToken(config.getRefreshToken());

    content = createContentService();

  }

  protected Config loadConfig() {

    try {

      return Config.load();

    } catch (IOException e) {

      System.out.println("There was an error while loading configuration.");

      e.printStackTrace();

      System.exit(1);

    }

    return null;

  }

  protected HttpTransport createHttpTransport() {

    try {

      return GoogleNetHttpTransport.newTrustedTransport();

    } catch (Exception e) {

      e.printStackTrace();

      System.exit(1);

    }

    return null;

  }

  protected ShoppingContent createContentService() {

    return new ShoppingContent.Builder(httpTransport, jsonFactory, credential)

        .setApplicationName(config.getApplicationName())

        .build();

  }

  protected Credential createCredential() {

    return new GoogleCredential.Builder()

        .setClientSecrets(config.getClientId(), config.getClientSecret())

        .setJsonFactory(jsonFactory)

        .setTransport(httpTransport)

        .build();

  }

  public abstract void execute() throws IOException;

}