package org.openslx.runvirt.plugin.qemu.cmdln;
import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.CommandLineParser;
import org.apache.commons.cli.DefaultParser;
import org.apache.commons.cli.HelpFormatter;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.ParseException;
/**
* Command line argument parser for the run-virt QEMU plugin (command line tool).
*
* @author Manuel Bentele
* @version 1.0
*/
public class CommandLineArgs
{
/**
* Parser for parsing command line arguments.
*/
private CommandLineParser cmdLnParser = null;
/**
* Stores specified command line options.
*/
private Options cmdLnOptions = null;
/**
* Stores the parsed command line arguments.
*/
private CommandLine cmdLn = null;
/**
* Creates a new command line argument parser for the run-virt QEMU plugin.
*
* @implNote Please call {@link CommandLineArgs#parseCmdLnArgs(String[])} manually after
* obtaining the command line argument parser from this method.
*/
public CommandLineArgs()
{
this.createCmdLnParser();
this.createCmdLnOptions();
}
/**
* Creates a new command line argument parser for the run-virt QEMU plugin and parses the command
* line arguments.
*
* @param args command line arguments submitted to the application.
*
* @throws CommandLineArgsException parsing of command line arguments failed.
*/
public CommandLineArgs( String[] args ) throws CommandLineArgsException
{
this();
this.parseCmdLnArgs( args );
}
/**
* Creates a new parser and empty command line options for parsing command line arguments.
*/
private void createCmdLnParser()
{
this.cmdLnParser = new DefaultParser();
this.cmdLnOptions = new Options();
}
/**
* Creates command line options specified by {@link CmdLnOption}.
*/
private void createCmdLnOptions()
{
for ( CmdLnOption option : CmdLnOption.values() ) {
this.cmdLnOptions.addOption( option.getShortOption(), option.getLongOption(), option.hasArgument(),
option.getDescription() );
}
}
/**
* Prints command line help for the current application.
*
* @param appName name of the current application.
* @param header header for the command line help.
* @param footer footer for the command line help.
*/
public void printHelp( String appName, String header, String footer )
{
HelpFormatter formatter = new HelpFormatter();
formatter.setLeftPadding( 2 );
formatter.printHelp( appName, header, this.cmdLnOptions, footer, true );
}
/**
* Parses command line arguments from a given argument {@link String}.
*
* @param args command line arguments submitted to the application.
*
* @throws CommandLineArgsException parsing of command line arguments failed.
*/
public void parseCmdLnArgs( String[] args ) throws CommandLineArgsException
{
try {
this.cmdLn = this.cmdLnParser.parse( this.cmdLnOptions, args );
} catch ( ParseException e ) {
throw new CommandLineArgsException( e.getLocalizedMessage() );
}
}
/**
* Returns the parsed argument of the specified command line option.
*
* @param cmdLnOption command line option for that the parsed argument should be returned.
* @return parsed argument of the command line option.
*/
public String getArgument( CmdLnOption cmdLnOption )
{
return this.cmdLn.getOptionValue( cmdLnOption.getShortOption() );
}
/**
* Returns the presence of the command line option {@link CmdLnOption#HELP}.
*
* @return presence of the command line option {@link CmdLnOption#HELP}.
*/
public boolean isHelpAquired()
{
return this.cmdLn.hasOption( CmdLnOption.HELP.getShortOption() );
}
/**
* Returns the argument of the command line option {@link CmdLnOption#VM_CFGINP}.
*
* @return argument of the command line option {@link CmdLnOption#VM_CFGINP}.
*/
public String getVmCfgInpFileName()
{
return this.getArgument( CmdLnOption.VM_CFGINP );
}
/**
* Returns the argument of the command line option {@link CmdLnOption#VM_CFGOUT}.
*
* @return argument of the command line option {@link CmdLnOption#VM_CFGOUT}.
*/
public String getVmCfgOutFileName()
{
return this.getArgument( CmdLnOption.VM_CFGOUT );
}
/**
* Returns the argument of the command line option {@link CmdLnOption#VM_NAME}.
*
* @return argument of the command line option {@link CmdLnOption#VM_NAME}.
*/
public String getVmName()
{
return this.getArgument( CmdLnOption.VM_NAME );
}
/**
* Returns the argument of the command line option {@link CmdLnOption#VM_UUID}.
*
* @return argument of the command line option {@link CmdLnOption#VM_UUID}.
*/
public String getVmUuid()
{
return this.getArgument( CmdLnOption.VM_UUID );
}
/**
* Returns the argument of the command line option {@link CmdLnOption#VM_DSPLNAME}.
*
* @return argument of the command line option {@link CmdLnOption#VM_DSPLNAME}.
*/
public String getVmDisplayName()
{
return this.getArgument( CmdLnOption.VM_DSPLNAME );
}
/**
* Returns the argument of the command line option {@link CmdLnOption#VM_OS}.
*
* @return argument of the command line option {@link CmdLnOption#VM_OS}.
*/
public String getVmOperatingSystem()
{
return this.getArgument( CmdLnOption.VM_OS );
}
/**
* Returns the argument of the command line option {@link CmdLnOption#VM_NCPUS}.
*
* @return argument of the command line option {@link CmdLnOption#VM_NCPUS}.
*/
public int getVmNumCpus()
{
final String numCpuArg = this.getArgument( CmdLnOption.VM_NCPUS );
int numCpus = 0;
if ( numCpuArg != null ) {
numCpus = Integer.parseInt( numCpuArg );
}
return numCpus;
}
/**
* Returns the argument of the command line option {@link CmdLnOption#VM_MEM}.
*
* @return argument of the command line option {@link CmdLnOption#VM_MEM}.
*/
public String getVmMemory()
{
return this.getArgument( CmdLnOption.VM_MEM );
}
/**
* Returns the argument of the command line option {@link CmdLnOption#VM_HDD0}.
*
* @return argument of the command line option {@link CmdLnOption#VM_HDD0}.
*/
public String getVmDiskFileNameHDD0()
{
return this.getArgument( CmdLnOption.VM_HDD0 );
}
/**
* Returns the argument of the command line option {@link CmdLnOption#VM_FLOPPY0}.
*
* @return argument of the command line option {@link CmdLnOption#VM_FLOPPY0}.
*/
public String getVmDiskFileNameFloppy0()
{
return this.getArgument( CmdLnOption.VM_FLOPPY0 );
}
/**
* Returns the argument of the command line option {@link CmdLnOption#VM_FLOPPY1}.
*
* @return argument of the command line option {@link CmdLnOption#VM_FLOPPY1}.
*/
public String getVmDiskFileNameFloppy1()
{
return this.getArgument( CmdLnOption.VM_FLOPPY1 );
}
/**
* Returns the argument of the command line option {@link CmdLnOption#VM_CDROM0}.
*
* @return argument of the command line option {@link CmdLnOption#VM_CDROM0}.
*/
public String getVmDiskFileNameCdrom0()
{
return this.getArgument( CmdLnOption.VM_CDROM0 );
}
/**
* Returns the argument of the command line option {@link CmdLnOption#VM_CDROM1}.
*
* @return argument of the command line option {@link CmdLnOption#VM_CDROM1}.
*/
public String getVmDiskFileNameCdrom1()
{
return this.getArgument( CmdLnOption.VM_CDROM1 );
}
/**
* Returns the argument of the command line option {@link CmdLnOption#VM_PARALLEL0}.
*
* @return argument of the command line option {@link CmdLnOption#VM_SERIAL0}.
*/
public String getVmDeviceParallel0()
{
return this.getArgument( CmdLnOption.VM_PARALLEL0 );
}
/**
* Returns the argument of the command line option {@link CmdLnOption#VM_SERIAL0}.
*
* @return argument of the command line option {@link CmdLnOption#VM_SERIAL0}.
*/
public String getVmDeviceSerial0()
{
return this.getArgument( CmdLnOption.VM_SERIAL0 );
}
/**
* Returns the argument of the command line option {@link CmdLnOption#VM_MAC0}.
*
* @return argument of the command line option {@link CmdLnOption#VM_MAC0}.
*/
public String getVmMacAddress0()
{
return this.getArgument( CmdLnOption.VM_MAC0 );
}
/**
* Returns the argument of the command line option {@link CmdLnOption#VM_FSSRC0}.
*
* @return argument of the command line option {@link CmdLnOption#VM_FSSRC0}.
*/
public String getVmFsSrc0()
{
return this.getArgument( CmdLnOption.VM_FSSRC0 );
}
/**
* Returns the argument of the command line option {@link CmdLnOption#VM_FSTGT0}.
*
* @return argument of the command line option {@link CmdLnOption#VM_FSTGT0}.
*/
public String getVmFsTgt0()
{
return this.getArgument( CmdLnOption.VM_FSTGT0 );
}
/**
* Returns the argument of the command line option {@link CmdLnOption#VM_FSSRC1}.
*
* @return argument of the command line option {@link CmdLnOption#VM_FSSRC1}.
*/
public String getVmFsSrc1()
{
return this.getArgument( CmdLnOption.VM_FSSRC1 );
}
/**
* Returns the argument of the command line option {@link CmdLnOption#VM_FSTGT1}.
*
* @return argument of the command line option {@link CmdLnOption#VM_FSTGT1}.
*/
public String getVmFsTgt1()
{
return this.getArgument( CmdLnOption.VM_FSTGT1 );
}
/**
* Command line options for the run-virt QEMU plugin (command line tool).
*
* @author Manuel Bentele
* @version 1.0
*/
public enum CmdLnOption
{
// @formatter:off
HELP ( 'h', "help", false, "" ),
VM_CFGINP ( 'i', "vmcfginp", true, "File name of an existing and filtered Libvirt domain XML configuration file" ),
VM_CFGOUT ( 'o', "vmcfgout", true, "File name to output a finalized Libvirt domain XML configuration file" ),
VM_NAME ( 'n', "vmname", true, "Name for the virtual machine" ),
VM_UUID ( 'u', "vmuuid", true, "UUID for the virtual machine" ),
VM_DSPLNAME ( 'd', "vmdsplname", true, "Display name for the virtual machine" ),
VM_OS ( 's', "vmos", true, "Operating system running in the virtual machine" ),
VM_NCPUS ( 'c', "vmncpus", true, "Number of virtual CPUs for the virtual machine" ),
VM_MEM ( 'm', "vmmem", true, "Amount of memory for the virtual machine" ),
VM_HDD0 ( 'r', "vmhdd0", true, "Disk image for the first HDD device" ),
VM_FLOPPY0 ( 'f', "vmfloppy0", true, "Disk image for the first floppy drive" ),
VM_FLOPPY1 ( 'g', "vmfloppy1", true, "Disk image for the second floppy drive" ),
VM_CDROM0 ( 'k', "vmcdrom0", true, "Disk image for the first CDROM drive" ),
VM_CDROM1 ( 'l', "vmcdrom1", true, "Disk image for the second CDROM drive" ),
VM_PARALLEL0( 'p', "vmparallel0", true, "Device for the first parallel port interface" ),
VM_SERIAL0 ( 'q', "vmserial0", true, "Device for the first serial port interface" ),
VM_MAC0 ( 'a', "vmmac0", true, "MAC address for the first network interface" ),
VM_FSSRC0 ( 't', "vmfssrc0", true, "Source directory for first file system passthrough (shared folder)" ),
VM_FSTGT0 ( 'u', "vmfstgt0", true, "Target directory for first file system passthrough (shared folder)" ),
VM_FSSRC1 ( 'v', "vmfssrc1", true, "Source directory for second file system passthrough (shared folder)" ),
VM_FSTGT1 ( 'w', "vmfstgt1", true, "Target directory for second file system passthrough (shared folder)" );
// @formatter:on
/**
* Stores the {@link Character} of the short command line option.
*/
private final char shortOption;
/**
* Stores the {@link String} of the long command line option.
*/
private final String longOption;
/**
* Stores the presence of an argument for the command line option.
*/
private final boolean hasArgument;
/**
* Stores the textual description of the command line option.
*/
private final String description;
/**
* Creates a new command line option for the run-virt QEMU plugin (command line tool).
*
* @param shortOption {@link Character} for the short command line option.
* @param longOption {@link String} for the long command line option.
* @param hasArgument presence of an argument for the command line option.
* @param description textual description of the command line option.
*/
CmdLnOption( char shortOption, String longOption, boolean hasArgument, String description )
{
this.shortOption = shortOption;
this.longOption = longOption;
this.hasArgument = hasArgument;
this.description = description;
}
/**
* Returns the {@link Character} of the short command line option.
*
* @return {@link Character} of the short command line option.
*/
public String getShortOption()
{
return Character.toString( this.shortOption );
}
/**
* Returns the {@link String} of the long command line option.
*
* @return {@link String} of the long command line option.
*/
public String getLongOption()
{
return this.longOption;
}
/**
* Returns the presence of an argument for the command line option.
*
* @return presence of an argument for the command line option.
*/
public boolean hasArgument()
{
return this.hasArgument;
}
/**
* Returns the textual description of the command line option.
*
* @return textual description of the command line option.
*/
public String getDescription()
{
return this.description;
}
}
}
