/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [http://neo4j.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.neo4j.adversaries.fs;

import java.io.IOException;
import java.io.OutputStream;
import org.neo4j.adversaries.Adversary;

@SuppressWarnings("unchecked")
public class AdversarialOutputStream extends OutputStream {
    private final OutputStream outputStream;
    private final Adversary adversary;

    public AdversarialOutputStream(OutputStream outputStream, Adversary adversary) {
        this.outputStream = outputStream;
        this.adversary = adversary;
    }

    @Override
    public void write(int b) throws IOException {
        adversary.injectFailure(IOException.class);
        outputStream.write(b);
    }

    @Override
    public void write(byte[] b) throws IOException {
        adversary.injectFailure(NullPointerException.class, IndexOutOfBoundsException.class, IOException.class);
        outputStream.write(b);
    }

    @Override
    public void write(byte[] b, int off, int len) throws IOException {
        adversary.injectFailure(NullPointerException.class, IndexOutOfBoundsException.class, IOException.class);
        outputStream.write(b, off, len);
    }

    @Override
    public void flush() throws IOException {
        adversary.injectFailure(IOException.class);
        outputStream.flush();
    }

    @Override
    public void close() throws IOException {
        adversary.injectFailure(IOException.class);
        outputStream.close();
    }
}
