1 files changed, 123 insertions, 0 deletions
diff --git a/id/server/moa-id-commons/src/main/java/com/datentechnik/moa/id/conf/cli/MOAIDConfCLI.java b/id/server/moa-id-commons/src/main/java/com/datentechnik/moa/id/conf/cli/MOAIDConfCLI.java
new file mode 100644
index 000000000..78b9450ce
--- /dev/null
+++ b/id/server/moa-id-commons/src/main/java/com/datentechnik/moa/id/conf/cli/MOAIDConfCLI.java
@@ -0,0 +1,123 @@
+package com.datentechnik.moa.id.conf.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_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 optHelp = new Option(CLIConstants.CLI_PARAM_HELP, CLIConstants.CLI_PARAM_HELP_LONG, false, "prints this message");
+		options.addOption(optHelp);
+		return options;
+	}
+
+}