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package org.openslx.runvirt.plugin.qemu.configuration;
import java.io.File;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.openslx.libvirt.domain.Domain;
import org.openslx.runvirt.plugin.qemu.cmdln.CommandLineArgs;
import org.openslx.util.Util;
import org.openslx.virtualization.configuration.transformation.TransformationException;
import org.openslx.virtualization.configuration.transformation.TransformationGeneric;
/**
* Use openslx wrapper script for launching the emulator (virtualizer)
*
* @author sr
*/
public class TransformationGenericWrapperScript extends TransformationGeneric<Domain, CommandLineArgs>
{
/**
* Instance of a logger to log messages.
*/
private static final Logger LOGGER = LogManager.getLogger( TransformationGenericWrapperScript.class );
/**
* Name of the configuration transformation.
*/
private static final String NAME = "Use wrapper script for emulator if found";
/**
* Extension for the wrapper we look for
*/
private static final String WRAPPER_EXT = ".openslx";
public TransformationGenericWrapperScript()
{
super( TransformationGenericWrapperScript.NAME );
}
/**
* Validates a virtualization configuration and input arguments for this transformation.
*/
private void validateInputs( Domain config, CommandLineArgs args ) throws TransformationException
{
if ( config == null || args == null ) {
throw new TransformationException( "Virtualization configuration or input arguments are missing!" );
}
}
@Override
public void transform( Domain config, CommandLineArgs args ) throws TransformationException
{
// validate configuration and input arguments
this.validateInputs( config, args );
// Use our wrapper if it exists
String emu = config.getDevicesEmulator();
if ( !Util.isEmptyString( emu ) && new File( emu + WRAPPER_EXT ).canExecute() ) {
LOGGER.info( "Using emulator wrapper " + emu + WRAPPER_EXT );
config.setDevicesEmulator( emu + WRAPPER_EXT );
}
}
}
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