Android Open Source - solutions-cloud-adventure-sample-android-client Cloud Endpoint Utils

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright 2013 Google Inc. All Rights Reserved.
 * //w ww .j av  a 2s . c om
 * 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 com.google.cloud.solutions.cloudadventure.util;

import com.google.api.client.googleapis.json.GoogleJsonError;
import com.google.api.client.googleapis.json.GoogleJsonResponseException;
import com.google.api.client.googleapis.services.AbstractGoogleClient;
import com.google.api.client.googleapis.services.AbstractGoogleClientRequest;
import com.google.api.client.googleapis.services.GoogleClientRequestInitializer;

import android.app.Activity;
import android.util.Log;
import android.widget.Toast;

import java.io.IOException;

/**
 * Common utilities.
 */
public class CloudEndpointUtils {

  public static final boolean LOCAL_ANDROID_RUN = false;
  private static final String LOCAL_APP_ENGINE_SERVER_URL = "http://10.0.2.2:8888";

  /**
   * Updates the Google client builder to connect the appropriate server based on whether
   * LOCAL_ANDROID_RUN is true or false.
   * 
   * @param builder Google client builder
   * @return same Google client builder
   */
  public static <B extends AbstractGoogleClient.Builder> B updateBuilder(B builder) {
    if (LOCAL_ANDROID_RUN) {
      builder.setRootUrl(LOCAL_APP_ENGINE_SERVER_URL + "/_ah/api/");
    }

    // only enable GZip when connecting to remote server
    final boolean enableGZip = builder.getRootUrl().startsWith("https:");

    builder.setGoogleClientRequestInitializer(new GoogleClientRequestInitializer() {
      public void initialize(AbstractGoogleClientRequest<?> request) throws IOException {
        if (!enableGZip) {
          request.setDisableGZipContent(true);
        }
      }
    });

    return builder;
  }

  /**
   * Logs the given message and shows an error alert dialog with it.
   * 
   * @param activity activity
   * @param tag log tag to use
   * @param message message to log and show or {@code null} for none
   */
  public static void logAndShow(Activity activity, String tag, String message) {
    Log.e(tag, message);
    showError(activity, message);
  }

  /**
   * Logs the given throwable and shows an error alert dialog with its message.
   * 
   * @param activity activity
   * @param tag log tag to use
   * @param t throwable to log and show
   */
  public static void logAndShow(Activity activity, String tag, Throwable t) {
    Log.e(tag, "Error", t);
    String message = t.getMessage();
    if (t instanceof GoogleJsonResponseException) {
      GoogleJsonError details = ((GoogleJsonResponseException) t).getDetails();
      if (details != null) {
        message = details.getMessage();
      }
    }
    showError(activity, message);
  }

  /**
   * Shows an error alert dialog with the given message.
   * 
   * @param activity activity
   * @param message message to show or {@code null} for none
   */
  public static void showError(final Activity activity, String message) {
    final String errorMessage = message == null ? "Error" : "[Error ] " + message;
    activity.runOnUiThread(new Runnable() {
      public void run() {
        Toast.makeText(activity, errorMessage, Toast.LENGTH_LONG).show();
      }
    });
  }
}

Java Source Code List

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