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package com.documents4j.job;

import java.io.IOException;
import java.io.InputStream;

class ConsumeOnCloseInputStream extends InputStream {

    private final InputStream underlyingInputStream;
    private final AbstractFutureWrappingPriorityFuture underlyingFuture;

    public ConsumeOnCloseInputStream(AbstractFutureWrappingPriorityFuture underlyingFuture,
                                     InputStream underlyingInputStream) {
        this.underlyingFuture = underlyingFuture;
        this.underlyingInputStream = underlyingInputStream;
    }

    @Override
    public int read() throws IOException {
        return underlyingInputStream.read();
    }

    @Override
    public int read(byte[] b) throws IOException {
        return underlyingInputStream.read(b);
    }

    @Override
    public int read(byte[] b, int off, int len) throws IOException {
        return underlyingInputStream.read(b, off, len);
    }

    @Override
    public long skip(long n) throws IOException {
        return underlyingInputStream.skip(n);
    }

    @Override
    public int available() throws IOException {
        return underlyingInputStream.available();
    }

    @Override
    public void close() throws IOException {
        underlyingFuture.onSourceConsumed(underlyingInputStream);
    }

    @Override
    public synchronized void mark(int readlimit) {
        underlyingInputStream.mark(readlimit);
    }

    @Override
    public synchronized void reset() throws IOException {
        underlyingInputStream.reset();
    }

    @Override
    public boolean markSupported() {
        return underlyingInputStream.markSupported();
    }
}