2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2021 Nordix Foundation.
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.clamp.controlloop.runtime.main.startstop;
23 import java.util.Arrays;
24 import javax.ws.rs.core.Response;
27 import org.apache.commons.cli.CommandLine;
28 import org.apache.commons.cli.DefaultParser;
29 import org.apache.commons.cli.Options;
30 import org.apache.commons.cli.ParseException;
31 import org.onap.policy.clamp.controlloop.common.exception.ControlLoopException;
32 import org.onap.policy.clamp.controlloop.common.exception.ControlLoopRuntimeException;
33 import org.onap.policy.clamp.controlloop.common.startstop.CommonCommandLineArguments;
34 import org.onap.policy.common.utils.resources.ResourceUtils;
37 * This class reads and handles command line parameters for the control loop runtime service.
39 public class ClRuntimeCommandLineArguments {
40 private final Options options;
41 private final CommonCommandLineArguments commonCommandLineArguments;
45 private String configurationFilePath = null;
48 * Construct the options for the control loop runtime component.
50 public ClRuntimeCommandLineArguments() {
51 options = new Options();
52 commonCommandLineArguments = new CommonCommandLineArguments(options);
56 * Construct the options for the CLI editor and parse in the given arguments.
58 * @param args The command line arguments
59 * @throws ControlLoopRuntimeException if the arguments are invalid
61 public ClRuntimeCommandLineArguments(final String[] args) {
62 // Set up the options with the default constructor
65 // Parse the arguments
68 } catch (final ControlLoopException e) {
69 throw new ControlLoopRuntimeException(Response.Status.NOT_ACCEPTABLE,
70 "parse error on control loop runtime parameters", e);
75 * Parse the command line options.
77 * @param args The command line arguments
78 * @return a string with a message for help and version, or null if there is no message
79 * @throws ControlLoopException on command argument errors
81 public String parse(final String[] args) throws ControlLoopException {
82 // Clear all our arguments
83 setConfigurationFilePath(null);
84 CommandLine commandLine = null;
86 commandLine = new DefaultParser().parse(options, args);
87 } catch (final ParseException e) {
88 throw new ControlLoopException(Response.Status.NOT_ACCEPTABLE,
89 "invalid command line arguments specified : " + e.getMessage());
92 // Arguments left over after Commons CLI does its stuff
93 final String[] remainingArgs = commandLine.getArgs();
95 if (remainingArgs.length > 0) {
96 throw new ControlLoopException(Response.Status.NOT_ACCEPTABLE,
97 "too many command line arguments specified : " + Arrays.toString(args));
100 if (commandLine.hasOption('h')) {
101 return commonCommandLineArguments.help(Main.class.getName(), options);
104 if (commandLine.hasOption('v')) {
105 return commonCommandLineArguments.version();
108 if (commandLine.hasOption('c')) {
109 setConfigurationFilePath(commandLine.getOptionValue('c'));
116 * Validate the command line options.
118 * @throws ControlLoopException on command argument validation errors
120 public void validate() throws ControlLoopException {
121 commonCommandLineArguments.validate(configurationFilePath);
125 * Gets the full expanded configuration file path.
127 * @return the configuration file path
129 public String getFullConfigurationFilePath() {
130 return ResourceUtils.getFilePath4Resource(getConfigurationFilePath());