read Whole Stream - Java java.io

Java examples for java.io:InputStream Read

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Description

read Whole Stream

Demo Code


//package com.java2s;
import java.io.IOException;
import java.io.InputStream;
import java.util.LinkedList;
import java.util.List;

public class Main {
    public static byte[] readWholeStream(InputStream is) throws IOException {
        int count = 0;
        List<byte[]> buffers = new LinkedList<>();

        final int BUFFER_SIZE = 1024;

        byte[] buffer = new byte[BUFFER_SIZE];
        int pos = 0;

        while (true) {
            int readed = is.read(buffer, pos, buffer.length - pos);
            if (readed == -1)
                break;

            pos += readed;/*ww w .  ja va2s  .c o m*/

            if (pos == BUFFER_SIZE) {
                buffers.add(buffer);
                count++;
                buffer = new byte[BUFFER_SIZE];
                pos = 0;
            }
        }

        byte[] result = new byte[count * BUFFER_SIZE + pos];
        int responseBodyPos = 0;

        for (byte[] filledBuffer : buffers) {
            System.arraycopy(filledBuffer, 0, result, responseBodyPos,
                    BUFFER_SIZE);
            responseBodyPos += BUFFER_SIZE;
        }

        System.arraycopy(buffer, 0, result, responseBodyPos, pos);

        return result;
    }
}

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