2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2019, 2021 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.parameters;
24 import org.onap.policy.common.endpoints.parameters.RestClientParameters;
25 import org.onap.policy.common.parameters.ValidationResult;
26 import org.onap.policy.common.utils.coder.Coder;
27 import org.onap.policy.common.utils.coder.StandardCoder;
28 import org.onap.policy.pdpx.main.PolicyXacmlPdpException;
29 import org.onap.policy.pdpx.main.startstop.XacmlPdpCommandLineArguments;
30 import org.slf4j.Logger;
31 import org.slf4j.LoggerFactory;
36 * This class handles reading, parsing and validating of policy xacml pdp parameters from JSON
39 public class XacmlPdpParameterHandler {
40 private static final Logger LOGGER = LoggerFactory.getLogger(XacmlPdpParameterHandler.class);
41 private static final Coder CODER = new StandardCoder();
44 * Read the parameters from the parameter file.
46 * @param arguments the arguments passed to policy xacml pdp
47 * @return the parameters read from the configuration file
48 * @throws PolicyXacmlPdpException on parameter exceptions
50 public XacmlPdpParameterGroup getParameters(final XacmlPdpCommandLineArguments arguments)
51 throws PolicyXacmlPdpException {
52 XacmlPdpParameterGroup xacmlPdpParameterGroup = null;
55 // Read the parameters from JSON
56 xacmlPdpParameterGroup = CODER.decode(new File(arguments.getFullConfigurationFilePath()),
57 XacmlPdpParameterGroup.class);
58 } catch (final Exception e) {
59 final String errorMessage = "error reading parameters from \"" + arguments.getConfigurationFilePath()
60 + "\"\n" + "(" + e.getClass().getSimpleName() + "):" + e.getMessage();
61 LOGGER.error(errorMessage);
62 throw new PolicyXacmlPdpException(errorMessage, e);
65 // The JSON processing returns null if there is an empty file
66 if (xacmlPdpParameterGroup == null) {
67 final String errorMessage = "no parameters found in \"" + arguments.getConfigurationFilePath() + "\"";
68 LOGGER.error(errorMessage);
69 throw new PolicyXacmlPdpException(errorMessage);
72 RestClientParameters apiClientParams = xacmlPdpParameterGroup.getPolicyApiParameters();
73 apiClientParams.setName(XacmlPdpParameterGroup.PARAM_POLICY_API);
74 apiClientParams.setManaged(false);
76 // validate the parameters
77 final ValidationResult validationResult = xacmlPdpParameterGroup.validate();
78 if (!validationResult.isValid()) {
79 String returnMessage =
80 "validation error(s) on parameters from \"" + arguments.getConfigurationFilePath() + "\"\n";
81 returnMessage += validationResult.getResult();
83 LOGGER.error(returnMessage);
84 throw new PolicyXacmlPdpException(returnMessage);
87 return xacmlPdpParameterGroup;