2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2019 AT&T Intellectual Property. 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.pdpx.main.startstop;
23 import java.io.FileInputStream;
24 import java.net.UnknownHostException;
25 import java.util.Arrays;
26 import java.util.Properties;
27 import org.onap.policy.common.endpoints.event.comm.client.TopicSinkClientException;
28 import org.onap.policy.pdpx.main.PolicyXacmlPdpException;
29 import org.onap.policy.pdpx.main.comm.XacmlPdpPapRegistration;
30 import org.onap.policy.pdpx.main.parameters.XacmlPdpParameterGroup;
31 import org.onap.policy.pdpx.main.parameters.XacmlPdpParameterHandler;
32 import org.slf4j.Logger;
33 import org.slf4j.LoggerFactory;
37 * This class initiates ONAP Policy Framework policy xacml pdp.
41 private static final Logger LOGGER = LoggerFactory.getLogger(Main.class);
43 // The policy xacml pdp Activator that activates the policy xacml pdp service
44 private XacmlPdpActivator activator;
46 // The parameters read in from JSON
47 private XacmlPdpParameterGroup parameterGroup;
49 // The argument message for some args that return a message
50 private String argumentMessage = null;
53 * Instantiates the policy xacml pdp service.
55 * @param args the command line arguments
57 public Main(final String[] args) {
58 final String argumentString = Arrays.toString(args);
59 LOGGER.info("Starting policy xacml pdp service with arguments - {}", argumentString);
61 // Check the arguments
62 final XacmlPdpCommandLineArguments arguments = new XacmlPdpCommandLineArguments();
64 // The arguments return a string if there is a message to print and we should exit
65 argumentMessage = arguments.parse(args);
66 if (argumentMessage != null) {
67 LOGGER.info(argumentMessage);
71 // Validate that the arguments are sane
73 } catch (final PolicyXacmlPdpException e) {
74 LOGGER.error("start of policy xacml pdp service failed", e);
78 // Read the parameters
80 parameterGroup = new XacmlPdpParameterHandler().getParameters(arguments);
81 } catch (final Exception e) {
82 LOGGER.error("start of policy xacml pdp service failed", e);
86 // Read the properties
87 Properties props = new Properties();
89 String propFile = arguments.getFullPropertyFilePath();
90 try (FileInputStream stream = new FileInputStream(propFile)) {
93 } catch (final Exception e) {
94 LOGGER.error("start of xacml pdp service failed", e);
98 // Now, create the activator for the policy xacml pdp service
99 activator = new XacmlPdpActivator(parameterGroup, props);
101 // Start the activator
104 } catch (final RuntimeException e) {
105 LOGGER.error("start of policy xacml pdp service failed, used parameters are " + Arrays.toString(args), e);
109 // Add a shutdown hook to shut everything down in an orderly manner
110 Runtime.getRuntime().addShutdownHook(new PolicyXacmlPdpShutdownHookClass());
111 LOGGER.info("Started policy xacml pdp service");
115 * Get the parameters specified in JSON.
117 * @return the parameters
119 public XacmlPdpParameterGroup getParameters() {
120 return parameterGroup;
124 * Get the argumentMessage string.
126 * @return the argumentMessage
128 public String getArgumentMessage() {
129 return argumentMessage;
133 * Shut down Execution.
135 * @throws PolicyXacmlPdpException on shutdown errors
137 public void shutdown() {
138 // clear the parameterGroup variable
139 parameterGroup = null;
141 // clear the xacml pdp activator
142 if (activator != null) {
148 * The Class PolicyXacmlPdpShutdownHookClass terminates the policy xacml pdp service when its run
151 private class PolicyXacmlPdpShutdownHookClass extends Thread {
155 * @see java.lang.Runnable#run()
159 // Shutdown the policy xacml pdp service and wait for everything to stop
167 * @param args the arguments
169 public static void main(final String[] args) {