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 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
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package com.pdd.pop.ext.glassfish.grizzly.http.server;

import java.io.IOException;
import java.nio.CharBuffer;
import com.pdd.pop.ext.glassfish.grizzly.Cacheable;
import com.pdd.pop.ext.glassfish.grizzly.ReadHandler;
import com.pdd.pop.ext.glassfish.grizzly.http.io.InputBuffer;
import com.pdd.pop.ext.glassfish.grizzly.http.io.NIOReader;

/**
 * {@link NIOReader} implementation based on {@link InputBuffer}.
 *
 * @author Ryan Lubke
 * @author Alexey Stashok
 */
final class NIOReaderImpl extends NIOReader implements Cacheable {

    private InputBuffer inputBuffer;


    // ----------------------------------------------------- Methods from Reader


    /**
     * {@inheritDoc}
     */
    @Override public int read(final CharBuffer target) throws IOException {
        return inputBuffer.read(target);
    }

    /**
     * {@inheritDoc}
     */
    @Override public int read() throws IOException {
        return inputBuffer.readChar();
    }

    /**
     * {@inheritDoc}
     */
    @Override public int read(final char[] cbuf) throws IOException {
        return inputBuffer.read(cbuf, 0, cbuf.length);
    }

    /**
     * {@inheritDoc}
     */
    @Override public long skip(final long n) throws IOException {
        return inputBuffer.skip(n);
    }

    /**
     * {@inheritDoc}
     */
    @Override public boolean ready() throws IOException {
        return isReady();
    }

    /**
     * This {@link java.io.Reader} implementation supports marking.
     *
     * @return true
     */
    @Override public boolean markSupported() {
        return true;
    }

    /**
     * {@inheritDoc}
     */
    @Override public void mark(int readAheadLimit) throws IOException {
        inputBuffer.mark(readAheadLimit);
    }

    /**
     * {@inheritDoc}
     */
    @Override public void reset() throws IOException {
        inputBuffer.reset();
    }

    /**
     * {@inheritDoc}
     */
    @Override public int read(final char[] cbuf, final int off, final int len)
    throws IOException {
        return inputBuffer.read(cbuf, off, len);
    }

    /**
     * {@inheritDoc}
     */
    @Override public void close() throws IOException {
        inputBuffer.close();
    }


    // --------------------------------------------- Methods from InputSource


    /**
     * {@inheritDoc}
     */
    @Override
    public void notifyAvailable(final ReadHandler handler) {
        inputBuffer.notifyAvailable(handler);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void notifyAvailable(final ReadHandler handler, final int size) {
        inputBuffer.notifyAvailable(handler, size);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public boolean isFinished() {
        return inputBuffer.isFinished();
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public int readyData() {
        return inputBuffer.availableChar();
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public boolean isReady() {
        return readyData() > 0;
    }


    // -------------------------------------------------- Methods from Cacheable


    /**
     * {@inheritDoc}
     */
    @Override
    public void recycle() {

        inputBuffer = null;

    }


    // ---------------------------------------------------------- Public Methods


    public void setInputBuffer(final InputBuffer inputBuffer) {

        this.inputBuffer = inputBuffer;

    }
}




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