com.github.stephenc.javaisotools.iso9660.volumedescriptors.VolumePartitionDescriptor Maven / Gradle / Ivy

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/*
 * Copyright (c) 2010. Stephen Connolly.
 * Copyright (C) 2007. Jens Hatlak 
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

package com.github.stephenc.javaisotools.iso9660.volumedescriptors;

import java.util.HashMap;

import com.github.stephenc.javaisotools.iso9660.LayoutHelper;
import com.github.stephenc.javaisotools.iso9660.PartitionConfig;
import com.github.stephenc.javaisotools.iso9660.impl.ISO9660Constants;
import com.github.stephenc.javaisotools.iso9660.sabre.impl.BothWordDataReference;
import com.github.stephenc.javaisotools.sabre.Fixup;
import com.github.stephenc.javaisotools.sabre.StreamHandler;
import com.github.stephenc.javaisotools.sabre.impl.ByteArrayDataReference;
import com.github.stephenc.javaisotools.sabre.HandlerException;
import com.github.stephenc.javaisotools.sabre.impl.ByteDataReference;

public class VolumePartitionDescriptor extends ISO9660VolumeDescriptor {

    private String systemId, volumePartitionId;

    public VolumePartitionDescriptor(StreamHandler streamHandler, LayoutHelper helper) {
        super(streamHandler, ISO9660Constants.VPD_TYPE, helper);
        this.systemId = this.volumePartitionId = "";
    }

    public void setSystemId(String systemId) {
        this.systemId = systemId;
    }

    public void setVolumePartitionId(String volumePartitionId) {
        this.volumePartitionId = volumePartitionId;
    }

    public void setMetadata(PartitionConfig config) {
        setSystemId(config.getSystemId());
        setVolumePartitionId(config.getVolumePartitionId());
    }

    public HashMap doVPD() throws HandlerException {
        HashMap memory = new HashMap();

        // Volume Descriptor Type: Volume Partition
        streamHandler.data(getType());

        // Standard Identifier
        streamHandler.data(getStandardId());

        // Volume Descriptor Version
        streamHandler.data(getVDVersion());

        // Unused Field: 1 byte
        streamHandler.data(new ByteDataReference(0));

        // System Identifier: 32 bytes
        streamHandler.data(getSystemId());

        // Volume Partition Identifier: 32 bytes
        streamHandler.data(getVolumePartitionId());

        // Volume Partition Location
        Fixup location = streamHandler.fixup(new BothWordDataReference(0));
        memory.put("volumePartitionLocationFixup", location);

        // Volume Partition Size
        Fixup size = streamHandler.fixup(new BothWordDataReference(0));
        memory.put("volumePartitionSizeFixup", size);

        // System Use: handle externally

        return memory;
    }

    private ByteArrayDataReference getSystemId() throws HandlerException {
        byte[] bytes = helper.pad(systemId, 32);
        return new ByteArrayDataReference(bytes);
    }

    private ByteArrayDataReference getVolumePartitionId() throws HandlerException {
        byte[] bytes = helper.pad(volumePartitionId, 32);
        return new ByteArrayDataReference(bytes);
    }

}