2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2016-2018 Ericsson. All rights reserved.
4 * ================================================================================
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 * SPDX-License-Identifier: Apache-2.0
18 * ============LICENSE_END=========================================================
21 package org.onap.policy.apex.tools.model.generator.model2cli;
23 import java.io.PrintStream;
25 import org.apache.commons.cli.CommandLine;
26 import org.apache.commons.cli.HelpFormatter;
27 import org.onap.policy.apex.tools.common.CliOptions;
28 import org.onap.policy.apex.tools.common.CliParser;
29 import org.onap.policy.apex.tools.common.OutputFile;
32 * Process an Apex Policy Model file to generate the CLI commands to generate an equivalent Apex Policy Model.
34 * @author Sven van der Meer <sven.van.der.meer@ericsson.com>
36 public final class Application {
37 /** The name of the application. */
38 public static final String APP_NAME = "gen-model2cli";
40 /** The description 1-liner of the application. */
41 public static final String APP_DESCRIPTION = "generates CLI Editor Commands from a policy model";
43 // Input and output streams
44 private static final PrintStream OUT_STREAM = System.out;
45 private static final PrintStream ERR_STREAM = System.err;
48 * Private constructor to prevent instantiation.
50 private Application() {
54 * Main method to start the application.
56 * @param args the command line arguments
58 public static void main(final String[] args) {
59 final CliParser cli = new CliParser();
60 cli.addOption(CliOptions.HELP);
61 cli.addOption(CliOptions.VERSION);
62 cli.addOption(CliOptions.SKIPVALIDATION);
63 cli.addOption(CliOptions.MODELFILE);
64 cli.addOption(CliOptions.FILEOUT);
65 cli.addOption(CliOptions.OVERWRITE);
67 final CommandLine cmd = cli.parseCli(args);
69 // help is an exit option, print usage and exit
70 if (cmd.hasOption(CliOptions.HELP.getOpt())) {
71 final HelpFormatter formatter = new HelpFormatter();
72 OUT_STREAM.println(APP_NAME + " v" + cli.getAppVersion() + " - " + APP_DESCRIPTION);
73 formatter.printHelp(APP_NAME, cli.getOptions());
78 // version is an exit option, print version and exit
79 if (cmd.hasOption(CliOptions.VERSION.getOpt())) {
80 OUT_STREAM.println(APP_NAME + " " + cli.getAppVersion());
85 String modelFile = cmd.getOptionValue(CliOptions.MODELFILE.getOpt());
86 if (modelFile != null) {
87 modelFile = cmd.getOptionValue("model");
89 if (modelFile == null) {
90 ERR_STREAM.println(APP_NAME + ": no '-" + CliOptions.MODELFILE.getOpt()
91 + "' model file given, cannot proceed (try -h for help)");
95 OutputFile outfile = null;
96 final String of = cmd.getOptionValue(CliOptions.FILEOUT.getOpt());
97 final boolean overwrite = cmd.hasOption(CliOptions.OVERWRITE.getOpt());
98 if (overwrite && of == null) {
99 ERR_STREAM.println(APP_NAME + ": error with '-" + CliOptions.OVERWRITE.getOpt()
100 + "' option. This option is only valid if a '-" + CliOptions.FILEOUT.getOpt()
101 + "' option is also used. Cannot proceed (try -h for help)");
105 outfile = new OutputFile(of, overwrite);
106 final String isoutfileok = outfile.validate();
107 if (isoutfileok != null) {
108 ERR_STREAM.println(APP_NAME + ": error with '-" + CliOptions.FILEOUT.getOpt() + "' option: \""
109 + isoutfileok + "\". Cannot proceed (try -h for help)");
114 if (outfile == null) {
115 OUT_STREAM.println();
116 OUT_STREAM.println(APP_NAME + ": starting CLI generator");
117 OUT_STREAM.println(" --> model file: " + modelFile);
118 OUT_STREAM.println();
119 OUT_STREAM.println();
122 final Model2Cli app = new Model2Cli(modelFile, outfile, !cmd.hasOption("sv"), APP_NAME);