2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
6 * Copyright © 2017 Amdocs
7 * ================================================================================
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 * ============LICENSE_END=========================================================
21 * ECOMP is a trademark and service mark of AT&T Intellectual Property.
23 package org.onap.aai.datarouter.util;
25 import java.io.FileNotFoundException;
26 import java.io.IOException;
27 import java.io.InputStream;
28 import java.util.ArrayList;
29 import java.util.Collection;
30 import java.util.HashMap;
31 import java.util.List;
33 import java.util.concurrent.ConcurrentHashMap;
34 import java.util.regex.Matcher;
35 import java.util.regex.Pattern;
37 import javax.ws.rs.core.Response.Status;
38 import javax.xml.bind.JAXBException;
40 import org.eclipse.persistence.jaxb.JAXBContextProperties;
41 import org.eclipse.persistence.jaxb.dynamic.DynamicJAXBContext;
42 import org.eclipse.persistence.jaxb.dynamic.DynamicJAXBContextFactory;
43 import org.onap.aai.cl.eelf.LoggerFactory;
44 import org.onap.aai.datarouter.logging.DataRouterMsgs;
45 import org.onap.aai.datarouter.util.ExternalOxmModelProcessor;
46 import org.springframework.core.io.Resource;
47 import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
48 import org.springframework.core.io.support.ResourcePatternResolver;
50 public class OxmModelLoader {
52 private static Map<String, DynamicJAXBContext> versionContextMap = new ConcurrentHashMap<>();
53 private static List<ExternalOxmModelProcessor> oxmModelProcessorRegistry = new ArrayList<>();
54 final static Pattern p = Pattern.compile("aai_oxm_(.*).xml");
58 private static org.onap.aai.cl.api.Logger logger = LoggerFactory.getInstance()
59 .getLogger(OxmModelLoader.class.getName());
61 public synchronized static void loadModels() throws FileNotFoundException {
63 ClassLoader cl = OxmModelLoader.class.getClassLoader();
64 ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver(cl);
67 resources = resolver.getResources("classpath*:/oxm/aai_oxm*.xml");
68 } catch (IOException ex) {
69 logger.error(DataRouterMsgs.LOAD_OXM_ERROR, ex.getMessage());
70 throw new FileNotFoundException("Unable to load OXM models from schema path : /oxm/aai_oxm*.xml");
73 if (resources.length == 0) {
74 logger.error(DataRouterMsgs.LOAD_OXM_ERROR, "No OXM schema files found on classpath");
75 throw new FileNotFoundException("Unable to load OXM models from schema path : /oxm/aai_oxm*.xml");
78 for (Resource resource : resources) {
79 Matcher matcher = p.matcher(resource.getFilename());
81 if (matcher.matches()) {
83 OxmModelLoader.loadModel(matcher.group(1), resource.getFilename(),resource.getInputStream());
84 } catch (Exception e) {
85 logger.error(DataRouterMsgs.LOAD_OXM_ERROR, "Failed to load " + resource.getFilename()
86 + ": " + e.getMessage());
96 private synchronized static void loadModel(String version,String resourceName,InputStream inputStream) throws JAXBException, FileNotFoundException {
97 Map<String, Object> properties = new HashMap<>();
98 properties.put(JAXBContextProperties.OXM_METADATA_SOURCE, inputStream);
99 final DynamicJAXBContext jaxbContext = DynamicJAXBContextFactory
100 .createContextFromOXM(Thread.currentThread().getContextClassLoader(), properties);
101 versionContextMap.put(version, jaxbContext);
102 if ( oxmModelProcessorRegistry != null) {
103 for ( ExternalOxmModelProcessor processor : oxmModelProcessorRegistry ) {
104 processor.onOxmVersionChange(Version.valueOf(version), jaxbContext );
107 logger.info(DataRouterMsgs.LOADED_OXM_FILE, resourceName);
110 public static DynamicJAXBContext getContextForVersion(String version) throws Exception {
111 if (versionContextMap == null || versionContextMap.isEmpty()) {
113 } else if (!versionContextMap.containsKey(version)) {
114 throw new Exception(Status.NOT_FOUND.toString());
118 return versionContextMap.get(version);
121 public static Map<String, DynamicJAXBContext> getVersionContextMap() {
122 return versionContextMap;
125 public static void setVersionContextMap(Map<String, DynamicJAXBContext> versionContextMap) {
126 OxmModelLoader.versionContextMap = versionContextMap;
129 public synchronized static void registerExternalOxmModelProcessors(Collection<ExternalOxmModelProcessor> processors) {
130 if(processors != null) {
131 for(ExternalOxmModelProcessor processor : processors) {
132 if(!oxmModelProcessorRegistry.contains(processor)) {
133 oxmModelProcessorRegistry.add(processor);