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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2016-2018 Ericsson. All rights reserved.
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.policy.apex.tools.model.generator.model2cli;
import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.HelpFormatter;
import org.onap.policy.apex.model.basicmodel.concepts.ApexException;
import org.onap.policy.apex.tools.common.CliOptions;
import org.onap.policy.apex.tools.common.CliParser;
import org.onap.policy.apex.tools.common.OutputFile;
/**
* Process an Apex Policy Model file to generate the CLI commands to generate an equivalent Apex Policy Model.
*
* @author Sven van der Meer <sven.van.der.meer@ericsson.com>
*/
public final class Application {
/** The name of the application. */
public static final String APP_NAME = "gen-model2cli";
/** The description 1-liner of the application. */
public static final String APP_DESCRIPTION = "generates CLI Editor Commands from a policy model";
/**
* Private constructor to prevent instantiation.
*/
private Application() {}
/**
* Main method to start the application.
*
* @param args the command line arguments
*/
public static void main(final String[] args) {
final CliParser cli = new CliParser();
cli.addOption(CliOptions.HELP);
cli.addOption(CliOptions.VERSION);
cli.addOption(CliOptions.SKIPVALIDATION);
cli.addOption(CliOptions.MODELFILE);
cli.addOption(CliOptions.FILEOUT);
cli.addOption(CliOptions.OVERWRITE);
final CommandLine cmd = cli.parseCli(args);
// help is an exit option, print usage and exit
if (cmd.hasOption(CliOptions.HELP.getOpt())) {
final HelpFormatter formatter = new HelpFormatter();
System.out.println(APP_NAME + " v" + cli.getAppVersion() + " - " + APP_DESCRIPTION);
formatter.printHelp(APP_NAME, cli.getOptions());
System.out.println();
return;
}
// version is an exit option, print version and exit
if (cmd.hasOption(CliOptions.VERSION.getOpt())) {
System.out.println(APP_NAME + " " + cli.getAppVersion());
System.out.println();
return;
}
String modelFile = cmd.getOptionValue(CliOptions.MODELFILE.getOpt());
if (modelFile != null) {
modelFile = cmd.getOptionValue("model");
}
if (modelFile == null) {
System.err.println(APP_NAME + ": no '-" + CliOptions.MODELFILE.getOpt()
+ "' model file given, cannot proceed (try -h for help)");
return;
}
OutputFile outfile = null;
final String of = cmd.getOptionValue(CliOptions.FILEOUT.getOpt());
final boolean overwrite = cmd.hasOption(CliOptions.OVERWRITE.getOpt());
if (overwrite && of == null) {
System.err.println(APP_NAME + ": error with '-" + CliOptions.OVERWRITE.getOpt()
+ "' option. This option is only valid if a '-" + CliOptions.FILEOUT.getOpt()
+ "' option is also used. Cannot proceed (try -h for help)");
return;
}
if (of != null) {
outfile = new OutputFile(of, overwrite);
final String isoutfileok = outfile.validate();
if (isoutfileok != null) {
System.err.println(APP_NAME + ": error with '-" + CliOptions.FILEOUT.getOpt() + "' option: \""
+ isoutfileok + "\". Cannot proceed (try -h for help)");
return;
}
}
if (outfile == null) {
System.out.println();
System.out.println(APP_NAME + ": starting CLI generator");
System.out.println(" --> model file: " + modelFile);
System.out.println();
System.out.println();
}
try {
final Model2Cli app = new Model2Cli(modelFile, outfile, !cmd.hasOption("sv"), APP_NAME);
app.runApp();
} catch (final ApexException aex) {
System.err.println(APP_NAME + ": caught APEX exception with message: " + aex.getMessage());
}
}
}
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