Android InputStream to ByteBuffer Read readIntoBuffer(InputStream is, ByteBuffer buf)

Description

read Into Buffer

License

Apache License

Declaration

static public boolean readIntoBuffer(InputStream is, ByteBuffer buf)
            throws IOException 

Method Source Code

//package com.java2s;
/*   //from  w w w  .  j av  a2 s . c o m
 * Copyright 2013 Karsten Patzwaldt
 *
 * 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.IOException;
import java.io.InputStream;
import java.nio.ByteBuffer;

public class Main {
    static public boolean readIntoBuffer(InputStream is, ByteBuffer buf)
            throws IOException {
        while (!isFull(buf)) {
            int bytes_read = is.read(buf.array(), buf.position(),
                    bytesRemaining(buf));

            if (bytes_read == -1)
                return true;

            increasePosition(buf, bytes_read);
        }

        return false;
    }

    static public boolean isFull(ByteBuffer buf) {
        return buf.position() >= buf.capacity();
    }

    static public int bytesRemaining(ByteBuffer buf) {
        return buf.capacity() - buf.position();
    }

    static public void increasePosition(ByteBuffer buf, int delta) {
        buf.position(buf.position() + delta);
    }
}

Related

1. slurp(final InputStream is, final int bufferSize)