2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright 2018 TechMahindra
6 *=================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END=========================================================
20 package org.onap.universalvesadapter.utils;
22 import java.io.ByteArrayInputStream;
23 import java.io.IOException;
24 import java.nio.charset.StandardCharsets;
25 import java.util.Locale;
26 import javax.xml.transform.stream.StreamSource;
27 import org.milyn.Smooks;
28 import org.milyn.container.ExecutionContext;
29 import org.milyn.payload.StringResult;
30 import org.onap.dcaegen2.ves.domain.VesEvent;
31 import org.slf4j.Logger;
32 import org.slf4j.LoggerFactory;
36 * Utility methods for smooks module
41 public class SmooksUtils {
44 private final static Logger LOGGER = LoggerFactory.getLogger(SmooksUtils.class);
47 * converts the incoming json using passed smooks instance and return the pojo representation of VES event
49 * @param smooks smooks object for the event type
50 * @param incomingJsonString
51 * @return VES json's pojo representation
54 public static VesEvent getTransformedObjectForInput(Smooks smooks, String incomingJsonString) {
56 LOGGER.debug("Transforming json " + incomingJsonString);
57 ExecutionContext executionContext = smooks.createExecutionContext();
58 LOGGER.debug("Context created");
59 Locale defaultLocale = Locale.getDefault();
60 Locale.setDefault(new Locale("en", "IE"));
62 StringResult result = new StringResult();
64 // Configure the execution context to generate a report...
65 // executionContext.setEventListener(new HtmlReportGenerator("target/report/report.html"));
67 // Filter the input message to the outputWriter, using the execution context...
68 smooks.filterSource(executionContext, new StreamSource(new ByteArrayInputStream(incomingJsonString.getBytes(StandardCharsets.UTF_8))), result);
69 LOGGER.debug("Transformed incoming json now");
70 Locale.setDefault(defaultLocale);
71 VesEvent vesEvent = (VesEvent) executionContext.getBeanContext().getBean("vesEvent");
72 LOGGER.debug("Converted vesEvent from incoming json");