Example usage for com.google.common.io ByteProcessor processBytes

Introduction

In this page you can find the example usage for com.google.common.io ByteProcessor processBytes.

Prototype

boolean processBytes(byte[] buf, int off, int len) throws IOException;

Source Link

Document

This method will be called for each chunk of bytes in an input stream.

Usage

From source file:com.tinspx.util.io.ByteArrayChannelSource.java

@Override
public <T> T read(ByteProcessor<T> processor) throws IOException {
    final byte[] bytes = read();
    processor.processBytes(bytes, 0, bytes.length);
    return processor.getResult();
}

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From source file:com.opengamma.strata.collect.io.ArrayByteSource.java

@Override
public <T> T read(ByteProcessor<T> processor) throws IOException {
    processor.processBytes(array, 0, array.length);
    return processor.getResult();
}

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From source file:com.tinspx.util.io.ByteUtils.java

/**
 * Copies the as many bytes as possible from {@code from} into {@code to}.
 * Byte processing ends when all bytes have been processed or when
 * {@link ByteProcessor#processBytes(byte[], int, int) processBytes} returns
 * {@code false}./*  w  w w . ja  v a2  s .c  o m*/
 * 
 * @param from the source to read bytes from
 * @param to the ByteProcessor to process the bytes read from {@code from}
 * @return the last result of calling
 * {@link ByteProcessor#processBytes(byte[], int, int) processBytes},
 * indicating if byte processing should continue
 * @throws IOException if an IOException occurs
 * @throws NullPointerException if either {@code from} or {@code to} is null
 */
@ThreadLocalArray(8192)
public static boolean copy(@NonNull ByteBuffer from, @NonNull ByteProcessor<?> to) throws IOException {
    if (!from.hasRemaining()) {
        return true;
    }
    if (from.hasArray()) {
        boolean p = to.processBytes(from.array(), from.arrayOffset() + from.position(), from.remaining());
        from.position(from.limit());
        return p;
    }
    final byte[] bytes = threadLocalArray8K();
    int r;
    boolean p;
    do {
        r = Math.min(from.remaining(), bytes.length);
        from.get(bytes, 0, r);
    } while ((p = to.processBytes(bytes, 0, r)) && from.hasRemaining());
    return p;
}

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From source file:com.tinspx.util.io.ByteUtils.java

/**
 * Copies at most {@code limit} bytes from {@code from} into {@code to},
 * returning the total number of bytes copied. {@code from} is not closed.
 * Byte processing stops on EOF or when/*from   w ww. jav a  2 s . c om*/
 * {@link ByteProcessor#processBytes(byte[], int, int) processBytes} returns
 * {@code false}.
 * 
 * @param from the source to read bytes from
 * @param to the destination to copy bytes read from {@code from} into
 * @param limit the maximum number of bytes to copy
 * @return the total number of bytes copied from {@code from} to {@code to}
 * @throws IOException if an IOException occurs
 * @throws NullPointerException if either {@code from} or {@code to} is null
 * @throws IllegalArgumentException if {@code limit} is negative
 */
@ThreadLocalArray(8192)
public static long copy(@NonNull @WillNotClose InputStream from, @NonNull ByteProcessor<?> to, long limit)
        throws IOException {
    checkLimit(limit);
    final byte[] buf = threadLocalArray8K();
    long total = 0;
    boolean proc = true;
    while (total < limit && proc) {
        int r = from.read(buf, 0, (int) Math.min(buf.length, limit - total));
        if (r > 0) {
            proc = to.processBytes(buf, 0, r);
            total += r;
        } else if (r < 0) {
            break;
        }
    }
    return total;
}

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