Android Open Source - spring-android-samples Http Get Set Request Timeout Activity

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright 2010-2014 the original author or authors.
 */*  w  w  w  .  ja va  2 s. 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 org.springframework.android.showcase.rest;

import java.net.SocketTimeoutException;

import org.springframework.android.showcase.AbstractAsyncActivity;
import org.springframework.android.showcase.R;
import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
import org.springframework.http.converter.StringHttpMessageConverter;
import org.springframework.web.client.ResourceAccessException;
import org.springframework.web.client.RestTemplate;

import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

/**
 * @author Roy Clarkson
 */
public class HttpGetSetRequestTimeoutActivity extends AbstractAsyncActivity {

  protected static final String TAG = HttpGetSetRequestTimeoutActivity.class.getSimpleName();

  // ***************************************
  // Activity methods
  // ***************************************
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.http_get_set_request_timeout_activity_layout);

    final Button buttonJson = (Button) findViewById(R.id.button_submit);
    buttonJson.setOnClickListener(new View.OnClickListener() {
      public void onClick(View v) {
        new RequestTask().execute();
      }
    });
  }

  // ***************************************
  // Private methods
  // ***************************************
  private void showResponse(String response) {
    if (response != null) {
      Toast.makeText(this, response, Toast.LENGTH_LONG).show();
    }
  }

  // ***************************************
  // Private classes
  // ***************************************
  private class RequestTask extends AsyncTask<Void, Void, String> {

    private String serverDelay;

    private int requestTimeout;

    @Override
    protected void onPreExecute() {
      showLoadingProgressDialog();

      EditText editText = (EditText) findViewById(R.id.edit_text_server_delay);
      this.serverDelay = editText.getText().toString();

      editText = (EditText) findViewById(R.id.edit_text_request_timeout);
      try {
        this.requestTimeout = Integer.parseInt(editText.getText().toString()) * 1000;
      } catch (NumberFormatException e) {
        this.requestTimeout = 10000; // default to 10 seconds
      }
    }

    @Override
    protected String doInBackground(Void... params) {
      try {
        // The URL for making the GET request
        final String url = getString(R.string.base_uri) + "/delay/{seconds}";

        // Initialize a request factory, setting the request timeout
        HttpComponentsClientHttpRequestFactory requestFactory = new HttpComponentsClientHttpRequestFactory();
        requestFactory.setReadTimeout(requestTimeout);

        // Create a new RestTemplate instance
        RestTemplate restTemplate = new RestTemplate(requestFactory);
        restTemplate.getMessageConverters().add(new StringHttpMessageConverter());

        // Perform the HTTP GET request
        String response = restTemplate.getForObject(url, String.class, serverDelay);

        // Return the state from the ResponseEntity
        return response;
      } catch (ResourceAccessException e) {
        Log.e(TAG, e.getMessage(), e);
        if (e.getCause() instanceof SocketTimeoutException) {
          return "Request timed out";
        }
      } catch (Exception e) {
        Log.e(TAG, e.getMessage(), e);
        return "An error occurred";
      }

      return null;
    }

    @Override
    protected void onPostExecute(String response) {
      dismissProgressDialog();
      showResponse(response);
    }

  }

}

Java Source Code List

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