diff options
Diffstat (limited to 'core/modules/qemu/runvirt-plugin-qemu/src/main/java/org/openslx/runvirt/plugin/qemu/configuration/TransformationGenericFileSystemDevices.java')
| -rw-r--r-- | core/modules/qemu/runvirt-plugin-qemu/src/main/java/org/openslx/runvirt/plugin/qemu/configuration/TransformationGenericFileSystemDevices.java | 53 |
1 files changed, 48 insertions, 5 deletions
diff --git a/core/modules/qemu/runvirt-plugin-qemu/src/main/java/org/openslx/runvirt/plugin/qemu/configuration/TransformationGenericFileSystemDevices.java b/core/modules/qemu/runvirt-plugin-qemu/src/main/java/org/openslx/runvirt/plugin/qemu/configuration/TransformationGenericFileSystemDevices.java index 0417bfdf..88939302 100644 --- a/core/modules/qemu/runvirt-plugin-qemu/src/main/java/org/openslx/runvirt/plugin/qemu/configuration/TransformationGenericFileSystemDevices.java +++ b/core/modules/qemu/runvirt-plugin-qemu/src/main/java/org/openslx/runvirt/plugin/qemu/configuration/TransformationGenericFileSystemDevices.java @@ -11,16 +11,55 @@ import org.openslx.virtualization.configuration.VirtualizationConfigurationQemuU import org.openslx.virtualization.configuration.transformation.TransformationException; import org.openslx.virtualization.configuration.transformation.TransformationGeneric; +/** + * Generic file system device (shared folder) transformation for Libvirt/QEMU virtualization + * configurations. + * + * @author Manuel Bentele + * @version 1.0 + */ public class TransformationGenericFileSystemDevices extends TransformationGeneric<Domain, CommandLineArgs> { - private static final String FILTER_NAME = "File system devices"; + /** + * Name of the configuration transformation. + */ + private static final String NAME = "File system devices"; + /** + * Creates a new file system device (shared folder) transformation for Libvirt/QEMU + * virtualization configurations. + */ public TransformationGenericFileSystemDevices() { - super( TransformationGenericFileSystemDevices.FILTER_NAME ); + super( TransformationGenericFileSystemDevices.NAME ); } - private void filterFileSystemDevice( Domain config, String source, String target, int index ) throws TransformationException + /** + * Validates a virtualization configuration and input arguments for this transformation. + * + * @param config virtualization configuration for the validation. + * @param args input arguments for the validation. + * @throws TransformationException validation has failed. + */ + private void validateInputs( Domain config, CommandLineArgs args ) throws TransformationException + { + if ( config == null || args == null ) { + throw new TransformationException( "Virtualization configuration or input arguments are missing!" ); + } + } + + /** + * Transforms a storage device in a virtualization configuration selected by its {@code index}. + * + * @param config virtualization configuration for the transformation. + * @param source path of the file system source on a host system. + * @param target path of the file system destination in a virtualization guest. + * @param index number of the file system device in the virtualization configuration that is + * selected. + * @throws TransformationException transformation has failed. + */ + private void transformFileSystemDevice( Domain config, String source, String target, int index ) + throws TransformationException { final ArrayList<FileSystem> devices = config.getFileSystemDevices(); final FileSystem fileSystem = VirtualizationConfigurationQemuUtils.getArrayIndex( devices, index ); @@ -52,8 +91,12 @@ public class TransformationGenericFileSystemDevices extends TransformationGeneri @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 ); + // validate configuration and input arguments + this.validateInputs( config, args ); + + // alter file system devices + this.transformFileSystemDevice( config, args.getVmFsSrc0(), args.getVmFsTgt0(), 0 ); + this.transformFileSystemDevice( config, args.getVmFsSrc1(), args.getVmFsTgt1(), 1 ); // remove all additional file system devices final ArrayList<FileSystem> devices = config.getFileSystemDevices(); |