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package org.openslx.runvirt.plugin.qemu.configuration;
import java.util.ArrayList;
import org.openslx.libvirt.domain.Domain;
import org.openslx.libvirt.domain.device.FileSystem;
import org.openslx.libvirt.domain.device.FileSystem.AccessMode;
import org.openslx.libvirt.domain.device.FileSystem.Type;
import org.openslx.runvirt.plugin.qemu.cmdln.CommandLineArgs;
import org.openslx.virtualization.configuration.machine.QemuMetaDataUtils;
import org.openslx.virtualization.configuration.transformation.TransformationException;
import org.openslx.virtualization.configuration.transformation.TransformationGeneric;
public class TransformationGenericFileSystemDevices extends TransformationGeneric<Domain, CommandLineArgs>
{
private static final String FILTER_NAME = "File system devices";
public TransformationGenericFileSystemDevices()
{
super( TransformationGenericFileSystemDevices.FILTER_NAME );
}
private void filterFileSystemDevice( Domain config, String source, String target, int index ) throws TransformationException
{
final ArrayList<FileSystem> devices = config.getFileSystemDevices();
final FileSystem fileSystem = QemuMetaDataUtils.getArrayIndex( devices, index );
if ( fileSystem == null ) {
// check if file system device source directory is specified
if ( source != null && target != null ) {
// file system device does not exist, so create new file system device
final FileSystem newFileSystem = config.addFileSystemDevice();
newFileSystem.setType( Type.MOUNT );
newFileSystem.setAccessMode( AccessMode.MAPPED );
newFileSystem.setSource( source );
newFileSystem.setTarget( target );
}
} else {
if ( source == null || target == null ) {
// remove file system device since device source or target is not specified
fileSystem.remove();
} else {
// change type, access mode, source and target of existing file system device
fileSystem.setType( Type.MOUNT );
fileSystem.setAccessMode( AccessMode.MAPPED );
fileSystem.setSource( source );
fileSystem.setTarget( target );
}
}
}
@Override
public void transform( Domain config, CommandLineArgs args ) throws TransformationException
{
this.filterFileSystemDevice( config, args.getVmFsSrc0(), args.getVmFsTgt0(), 0 );
this.filterFileSystemDevice( config, args.getVmFsSrc1(), args.getVmFsTgt1(), 1 );
// remove all additional file system devices
final ArrayList<FileSystem> devices = config.getFileSystemDevices();
for ( int i = 1; i < devices.size(); i++ ) {
devices.get( i ).remove();
}
}
}
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