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.plugins.event.protocol.jms;
23 import java.lang.reflect.Method;
24 import java.util.List;
26 import org.onap.policy.apex.service.engine.event.ApexEvent;
27 import org.onap.policy.apex.service.engine.event.ApexEventException;
28 import org.onap.policy.apex.service.engine.event.ApexEventRuntimeException;
29 import org.onap.policy.apex.service.engine.event.impl.jsonprotocolplugin.Apex2JsonEventConverter;
30 import org.slf4j.ext.XLogger;
31 import org.slf4j.ext.XLoggerFactory;
34 * The Class Apex2JMSTextEventConverter converts {@link ApexEvent} instances into string instances of
35 * text message events for JMS. It is a proxy for the built in
36 * {@link org.onap.policy.apex.service.engine.event.impl.jsonprotocolplugin.Apex2JsonEventConverter} plugin.
38 * @author Liam Fallon (liam.fallon@ericsson.com)
40 public final class Apex2JmsTextEventConverter extends Apex2JsonEventConverter {
41 private static final XLogger LOGGER = XLoggerFactory.getXLogger(Apex2JmsTextEventConverter.class);
47 public List<ApexEvent> toApexEvent(final String eventName, final Object eventObject) throws ApexEventException {
48 // Look for a "getText()" method on the incoming object, if there is no such method, then we cannot fetch the
52 getTextMethod = eventObject.getClass().getMethod("getText", (Class<?>[]) null);
53 } catch (Exception e) {
54 final String errorMessage = "message \"" + eventObject
55 + "\" received from JMS does not have a \"getText()\" method";
56 LOGGER.warn(errorMessage, e);
57 throw new ApexEventRuntimeException(errorMessage);
63 jmsString = (String) getTextMethod.invoke(eventObject, (Object[]) null);
64 } catch (final Exception e) {
65 final String errorMessage = "object contained in message \"" + eventObject
66 + "\" received from JMS could not be retrieved as a Java String";
67 LOGGER.debug(errorMessage, e);
68 throw new ApexEventRuntimeException(errorMessage, e);
71 // Use the generic JSON plugin from here
72 return super.toApexEvent(eventName, jmsString);
79 public Object fromApexEvent(final ApexEvent apexEvent) throws ApexEventException {
80 // Check the Apex event
81 if (apexEvent == null) {
82 LOGGER.warn("event processing failed, Apex event is null");
83 throw new ApexEventException("event processing failed, Apex event is null");
86 // Return the Apex event as a string object
87 return super.fromApexEvent(apexEvent);