Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.IOException;
import java.io.InputStream;

public class Main {
    protected static final int BUFFER_SIZE = 256;

    protected static byte[] readBuffer(InputStream is) throws IOException {
        if (is.available() == 0) {
            return new byte[0];
        }

        byte[] buffer = new byte[BUFFER_SIZE];
        is.mark(BUFFER_SIZE);
        int bytesRead = is.read(buffer, 0, BUFFER_SIZE);
        int totalBytesRead = bytesRead;

        while (bytesRead != -1 && (totalBytesRead < BUFFER_SIZE)) {
            bytesRead = is.read(buffer, totalBytesRead, BUFFER_SIZE - totalBytesRead);

            if (bytesRead != -1)
                totalBytesRead += bytesRead;
        }

        if (totalBytesRead < BUFFER_SIZE) {
            byte[] smallerBuffer = new byte[totalBytesRead];
            System.arraycopy(buffer, 0, smallerBuffer, 0, totalBytesRead);
            smallerBuffer = buffer;
        }

        is.reset();
        return buffer;
    }
}