com.loopj.android.http.sample.RetryRequestSample.java Source code

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Here is the source code for com.loopj.android.http.sample.RetryRequestSample.java

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/*
Android Asynchronous Http Client Sample
Copyright (c) 2014 Marek Sebera <marek.sebera@gmail.com>
http://loopj.com
    
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.loopj.android.http.sample;

import android.os.Bundle;
import android.widget.Toast;

import com.loopj.android.http.AsyncHttpClient;
import java.io.IOException;
import java.net.SocketTimeoutException;
import java.net.UnknownHostException;

import org.apache.http.conn.ConnectTimeoutException;
import org.apache.http.conn.ConnectionPoolTimeoutException;

/**
 * This sample demonstrates use of
 * {@link AsyncHttpClient#allowRetryExceptionClass(Class)} and
 * {@link AsyncHttpClient#blockRetryExceptionClass(Class)} to whitelist
 * and blacklist certain Exceptions, respectively.
 *
 * @author Noor Dawod <github@fineswap.com>
 */
public class RetryRequestSample extends GetSample {

    private static boolean wasToastShown;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // The following exceptions will be whitelisted, i.e.: When an exception
        // of this type is raised, the request will be retried.
        AsyncHttpClient.allowRetryExceptionClass(IOException.class);
        AsyncHttpClient.allowRetryExceptionClass(SocketTimeoutException.class);
        AsyncHttpClient.allowRetryExceptionClass(ConnectTimeoutException.class);

        // The following exceptions will be blacklisted, i.e.: When an exception
        // of this type is raised, the request will not be retried and it will
        // fail immediately.
        AsyncHttpClient.blockRetryExceptionClass(UnknownHostException.class);
        AsyncHttpClient.blockRetryExceptionClass(ConnectionPoolTimeoutException.class);
    }

    @Override
    protected void onResume() {
        super.onResume();

        if (!wasToastShown) {
            wasToastShown = true;
            Toast.makeText(this,
                    "Exceptions' whitelist and blacklist updated\nSee RetryRequestSample.java for details",
                    Toast.LENGTH_LONG).show();
        }
    }

    @Override
    public String getDefaultURL() {
        return PROTOCOL + "httpbin.org/ip";
    }

    @Override
    public int getSampleTitle() {
        return R.string.title_retry_handler;
    }
}