Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/**
 Copyright 2014 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.
 */

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Map;

public class Main {
    /**
     * Do an HTTP POST and return the data as a byte array.
     */
    public static byte[] executePost(String url, byte[] data, Map<String, String> requestProperties)
            throws MalformedURLException, IOException {
        HttpURLConnection urlConnection = null;
        try {
            urlConnection = (HttpURLConnection) new URL(url).openConnection();
            urlConnection.setRequestMethod("POST");
            urlConnection.setDoOutput(data != null);
            urlConnection.setDoInput(true);
            if (requestProperties != null) {
                for (Map.Entry<String, String> requestProperty : requestProperties.entrySet()) {
                    urlConnection.setRequestProperty(requestProperty.getKey(), requestProperty.getValue());
                }
            }
            if (data != null) {
                OutputStream out = new BufferedOutputStream(urlConnection.getOutputStream());
                out.write(data);
                out.close();
            }
            InputStream in = new BufferedInputStream(urlConnection.getInputStream());
            return convertInputStreamToByteArray(in);
        } finally {
            if (urlConnection != null) {
                urlConnection.disconnect();
            }
        }
    }

    /**
     * Write the contents of an input stream into a byte array.
     * @param inputStream The stream to convert into a byte array.
     * @return A byte array containing the contents of the input stream.
     * @throws IOException
     */
    private static byte[] convertInputStreamToByteArray(InputStream inputStream) throws IOException {
        byte[] bytes = null;
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        byte data[] = new byte[1024];
        int count;
        while ((count = inputStream.read(data)) != -1) {
            bos.write(data, 0, count);
        }
        bos.flush();
        bos.close();
        inputStream.close();
        bytes = bos.toByteArray();
        return bytes;
    }
}