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.model.basicmodel.concepts.ApexException;
28 import org.onap.policy.apex.tools.common.CliOptions;
29 import org.onap.policy.apex.tools.common.CliParser;
30 import org.onap.policy.apex.tools.common.OutputFile;
31 import org.slf4j.Logger;
32 import org.slf4j.LoggerFactory;
35 * Process an Apex Policy Model file to generate the CLI commands to generate an equivalent Apex Policy Model.
37 * @author Sven van der Meer <sven.van.der.meer@ericsson.com>
39 public final class Application {
40 // Get a reference to the logger
41 private static final Logger LOGGER = LoggerFactory.getLogger(Application.class);
43 /** The name of the application. */
44 public static final String APP_NAME = "gen-model2cli";
46 /** The description 1-liner of the application. */
47 public static final String APP_DESCRIPTION = "generates CLI Editor Commands from a policy model";
49 // Input and output streams
50 private static final PrintStream OUT_STREAM = System.out;
51 private static final PrintStream ERR_STREAM = System.err;
54 * Private constructor to prevent instantiation.
56 private Application() {
60 * Main method to start the application.
62 * @param args the command line arguments
64 public static void main(final String[] args) {
65 final CliParser cli = new CliParser();
66 cli.addOption(CliOptions.HELP);
67 cli.addOption(CliOptions.VERSION);
68 cli.addOption(CliOptions.SKIPVALIDATION);
69 cli.addOption(CliOptions.MODELFILE);
70 cli.addOption(CliOptions.FILEOUT);
71 cli.addOption(CliOptions.OVERWRITE);
73 final CommandLine cmd = cli.parseCli(args);
75 // help is an exit option, print usage and exit
76 if (cmd.hasOption(CliOptions.HELP.getOpt())) {
77 final HelpFormatter formatter = new HelpFormatter();
78 OUT_STREAM.println(APP_NAME + " v" + cli.getAppVersion() + " - " + APP_DESCRIPTION);
79 formatter.printHelp(APP_NAME, cli.getOptions());
84 // version is an exit option, print version and exit
85 if (cmd.hasOption(CliOptions.VERSION.getOpt())) {
86 OUT_STREAM.println(APP_NAME + " " + cli.getAppVersion());
91 String modelFile = cmd.getOptionValue(CliOptions.MODELFILE.getOpt());
92 if (modelFile != null) {
93 modelFile = cmd.getOptionValue("model");
95 if (modelFile == null) {
96 ERR_STREAM.println(APP_NAME + ": no '-" + CliOptions.MODELFILE.getOpt()
97 + "' model file given, cannot proceed (try -h for help)");
101 OutputFile outfile = null;
102 final String of = cmd.getOptionValue(CliOptions.FILEOUT.getOpt());
103 final boolean overwrite = cmd.hasOption(CliOptions.OVERWRITE.getOpt());
104 if (overwrite && of == null) {
105 ERR_STREAM.println(APP_NAME + ": error with '-" + CliOptions.OVERWRITE.getOpt()
106 + "' option. This option is only valid if a '-" + CliOptions.FILEOUT.getOpt()
107 + "' option is also used. Cannot proceed (try -h for help)");
111 outfile = new OutputFile(of, overwrite);
112 final String isoutfileok = outfile.validate();
113 if (isoutfileok != null) {
114 ERR_STREAM.println(APP_NAME + ": error with '-" + CliOptions.FILEOUT.getOpt() + "' option: \""
115 + isoutfileok + "\". Cannot proceed (try -h for help)");
120 if (outfile == null) {
121 OUT_STREAM.println();
122 OUT_STREAM.println(APP_NAME + ": starting CLI generator");
123 OUT_STREAM.println(" --> model file: " + modelFile);
124 OUT_STREAM.println();
125 OUT_STREAM.println();
129 final Model2Cli app = new Model2Cli(modelFile, outfile, !cmd.hasOption("sv"), APP_NAME);
131 } catch (final ApexException aex) {
132 String message = APP_NAME + ": caught APEX exception with message: " + aex.getMessage();
133 ERR_STREAM.println(message);
134 LOGGER.warn(message, aex);