2 * ============LICENSE_START=======================================================
3 * Copyright (C) 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.distribution.reception.parameters;
23 import com.google.gson.JsonDeserializationContext;
24 import com.google.gson.JsonDeserializer;
25 import com.google.gson.JsonElement;
26 import com.google.gson.JsonObject;
27 import com.google.gson.JsonPrimitive;
28 import java.lang.reflect.Type;
29 import org.slf4j.ext.XLogger;
30 import org.slf4j.ext.XLoggerFactory;
33 * This class deserialises reception handler parameters from JSON.
35 public class ReceptionHandlerConfigurationParametersJsonAdapter
36 implements JsonDeserializer<ReceptionHandlerConfigurationParameterGroup> {
37 private static final XLogger LOGGER =
38 XLoggerFactory.getXLogger(ReceptionHandlerConfigurationParametersJsonAdapter.class);
40 private static final String PARAMETER_CLASS_NAME = "parameterClassName";
41 private static final String RECEPTION_HANDLER_PARAMETERS = "parameters";
44 public ReceptionHandlerConfigurationParameterGroup deserialize(final JsonElement json, final Type typeOfT,
45 final JsonDeserializationContext context) {
46 final JsonObject jsonObject = json.getAsJsonObject();
48 final String receptionHandlerParameterClassName = getParameterGroupClassName(jsonObject);
49 Class<?> receptionHandlerParameterClass = getParameterGroupClass(receptionHandlerParameterClassName);
51 return context.deserialize(jsonObject.get(RECEPTION_HANDLER_PARAMETERS), receptionHandlerParameterClass);
54 private String getParameterGroupClassName(final JsonObject jsonObject) {
55 final JsonPrimitive classNameJsonPrimitive = ((JsonPrimitive) jsonObject.get(PARAMETER_CLASS_NAME));
57 if (classNameJsonPrimitive == null || classNameJsonPrimitive.getAsString().length() == 0) {
58 final String errorMessage = "parameter \"" + PARAMETER_CLASS_NAME + "\" value \""
59 + (classNameJsonPrimitive != null ? classNameJsonPrimitive.getAsString() : "null")
60 + "\" invalid in JSON file";
61 LOGGER.warn(errorMessage);
62 throw new IllegalArgumentException(errorMessage);
64 return classNameJsonPrimitive.getAsString().replaceAll("\\s+", "");
67 private Class<?> getParameterGroupClass(final String receptionHAndlerParameterClassName) {
68 Class<?> receptionHandlerParameterClass = null;
70 receptionHandlerParameterClass = Class.forName(receptionHAndlerParameterClassName);
71 } catch (final ClassNotFoundException e) {
72 final String errorMessage = "parameter \"" + PARAMETER_CLASS_NAME + "\" value \""
73 + receptionHAndlerParameterClassName + "\", could not find class";
74 LOGGER.warn(errorMessage, e);
75 throw new IllegalArgumentException(errorMessage, e);
77 return receptionHandlerParameterClass;