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BSD Licensed JDBC driver for Drizzle and MySQL

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/*
 * Drizzle-JDBC
 *
 * Copyright (c) 2009-2011, Marcus Eriksson, Trond Norbye
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following
 * conditions are met:
 *
 *  Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
 *  Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following
 *   disclaimer in the documentation and/or other materials provided with the distribution.
 *  Neither the name of the driver nor the names of its contributors may be used to endorse or promote products derived
 *   from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 * EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package org.drizzle.jdbc.internal.common.packet;

import org.drizzle.jdbc.internal.common.PacketFetcher;

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

public class SyncPacketFetcher implements PacketFetcher {

    private final InputStream inputStream;

    public SyncPacketFetcher(final InputStream is) {
        this.inputStream = new BufferedInputStream(is);
    }

    public RawPacket getRawPacket() throws IOException {
        return RawPacket.nextPacket(inputStream);
    }

    public void clearInputStream() throws IOException {
        int available = inputStream.available();
        while(available > 0) {
            available -= inputStream.skip(available);
        }
    }

    public void close() throws IOException {
        inputStream.close();
    }
}