diff options
Diffstat (limited to 'id/server/moa-id-commons/src/main/java/at/gv/egovernment/moa/id/commons/config/cli/MOAIDConfCLI.java')
-rw-r--r-- | id/server/moa-id-commons/src/main/java/at/gv/egovernment/moa/id/commons/config/cli/MOAIDConfCLI.java | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/id/server/moa-id-commons/src/main/java/at/gv/egovernment/moa/id/commons/config/cli/MOAIDConfCLI.java b/id/server/moa-id-commons/src/main/java/at/gv/egovernment/moa/id/commons/config/cli/MOAIDConfCLI.java new file mode 100644 index 000000000..f2753c3d0 --- /dev/null +++ b/id/server/moa-id-commons/src/main/java/at/gv/egovernment/moa/id/commons/config/cli/MOAIDConfCLI.java @@ -0,0 +1,127 @@ +package at.gv.egovernment.moa.id.commons.config.cli; + +import java.io.OutputStream; +import java.io.PrintWriter; + +import org.apache.commons.cli.BasicParser; +import org.apache.commons.cli.CommandLine; +import org.apache.commons.cli.CommandLineParser; +import org.apache.commons.cli.HelpFormatter; +import org.apache.commons.cli.Option; +import org.apache.commons.cli.OptionGroup; +import org.apache.commons.cli.Options; +import org.apache.commons.cli.ParseException; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * The command-line interface for MOAID configuration migration + * @author Christian Wagner + * + */ +public class MOAIDConfCLI { + + // the default output to write usage information and help text to + private static final OutputStream OUTPUT_STREAM = System.out; + + private Logger log = LoggerFactory.getLogger(getClass()); + + /** + * Parses the given command-line arguments using a {@link BasicParser} with small modifications. + * @param commandLineArgs the command-line arguments. + */ + public MigrateConfigurationParams parse(String[] commandLineArgs) { + + CommandLineParser parser = new BasicParser(); + CommandLine cmd = null; + MigrateConfigurationParams result = null; + try { + + if (null == commandLineArgs || commandLineArgs.length == 0) { + printUsage(OUTPUT_STREAM, true); + System.exit(0); + } + + cmd = parser.parse(createOptions(), commandLineArgs, true); + + if( null != cmd && cmd.hasOption(CLIConstants.CLI_PARAM_HELP)){ + printUsage(OUTPUT_STREAM, true); + System.exit(0); + } + + result = new MigrateConfigurationParams(cmd); + + } catch (ParseException e) { + log.warn("Encountered exception while parsing: {}", e.getMessage()); + System.err.println(e.getMessage()); + printUsage(OUTPUT_STREAM, false); + System.exit(1); + } + return result; + } + + /** + * Prints information about the usage to the given output. + * @param out the {@link OutputStream} to write to + * @param printOptions determines whether the available options are printed + */ + private void printUsage(OutputStream out, boolean printOptions) { + + PrintWriter pOut = new PrintWriter(out); + + HelpFormatter formatter = new HelpFormatter(); + pOut.println(); + pOut.println("usage: " + CLIConstants.CMD_LINE_SYNTAX + " -" + CLIConstants.CLI_PARAM_FORCE + " -" + + CLIConstants.CLI_PARAM_IN + " <inputfile> | -" + CLIConstants.CLI_PARAM_INDB + " <dbconfig> -" + + CLIConstants.CLI_PARAM_OUT + " <outputfile> | -" + CLIConstants.CLI_PARAM_OUTDB + " <dbconfig> [-" + + CLIConstants.CLI_PARAM_HELP + "]"); + pOut.println(); + pOut.println(CLIConstants.HELP_HEADER); + if(printOptions){ + pOut.println(); + formatter.printOptions(pOut, CLIConstants.HELP_ROW_WIDTH, createOptions(), CLIConstants.HELP_SPACE_BEFORE_OPT, CLIConstants.HELP_SPACE_BEFORE_DESC); + } + pOut.flush(); + + } + + /** + * Create all {@linkplain Option options} that should be available in the CLI. + * @return The {@linkplain Options options} + */ + private Options createOptions() { + + Options options = new Options(); + + OptionGroup inGroup = new OptionGroup(); + Option optionInput = new Option(CLIConstants.CLI_PARAM_IN, CLIConstants.CLI_PARAM_IN_LONG, true, "MOAID config-file to convert"); + optionInput.setArgName("inputfile"); + Option optionDBInput = new Option(CLIConstants.CLI_PARAM_INDB, CLIConstants.CLI_PARAM_INDB_LONG, true, "config for database to read from"); + optionDBInput.setArgName("dbconfig"); + + inGroup.addOption(optionDBInput); + inGroup.addOption(optionInput); + optionInput.setRequired(false); + + OptionGroup outGroup = new OptionGroup(); + Option optionOutput = new Option(CLIConstants.CLI_PARAM_OUT, CLIConstants.CLI_PARAM_OUT_LONG, true, "target file to write to"); + optionOutput.setArgName("outputfile"); + Option optionDBOutput = new Option(CLIConstants.CLI_PARAM_OUTDB, CLIConstants.CLI_PARAM_OUTDB_LONG, true, "config for database to write to"); + optionDBOutput.setArgName("dbconfig"); + + outGroup.addOption(optionDBOutput); + outGroup.addOption(optionOutput); + outGroup.setRequired(false); + + options.addOptionGroup(inGroup); + options.addOptionGroup(outGroup); + + Option optForce = new Option(CLIConstants.CLI_PARAM_FORCE, CLIConstants.CLI_PARAM_FORCE_LONG, false, "overwrite existing data with imported data"); + options.addOption(optForce); + + Option optHelp = new Option(CLIConstants.CLI_PARAM_HELP, CLIConstants.CLI_PARAM_HELP_LONG, false, "prints this message"); + options.addOption(optHelp); + return options; + } + +} |