2 * ============LICENSE_START=======================================================
\r
4 * ================================================================================
\r
5 * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
\r
6 * Copyright © 2017-2018 Amdocs
\r
7 * ================================================================================
\r
8 * Licensed under the Apache License, Version 2.0 (the "License");
\r
9 * you may not use this file except in compliance with the License.
\r
10 * You may obtain a copy of the License at
\r
12 * http://www.apache.org/licenses/LICENSE-2.0
\r
14 * Unless required by applicable law or agreed to in writing, software
\r
15 * distributed under the License is distributed on an "AS IS" BASIS,
\r
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
\r
17 * See the License for the specific language governing permissions and
\r
18 * limitations under the License.
\r
19 * ============LICENSE_END=========================================================
\r
21 package org.onap.schema;
\r
23 import java.io.File;
\r
24 import java.io.FileInputStream;
\r
25 import java.io.FileNotFoundException;
\r
26 import java.io.IOException;
\r
27 import java.util.Arrays;
\r
28 import java.util.Map;
\r
29 import java.util.concurrent.ConcurrentHashMap;
\r
30 import java.util.function.Function;
\r
31 import java.util.regex.Matcher;
\r
32 import java.util.regex.Pattern;
\r
33 import java.util.stream.Collectors;
\r
35 import javax.annotation.PostConstruct;
\r
36 import javax.ws.rs.core.Response.Status;
\r
38 import org.apache.commons.io.IOUtils;
\r
39 import org.onap.aai.cl.eelf.LoggerFactory;
\r
40 import org.onap.aai.edges.EdgeIngestor;
\r
41 import org.onap.aai.edges.EdgeRule;
\r
42 import org.onap.aai.edges.exceptions.EdgeRuleNotFoundException;
\r
43 import org.onap.aai.setup.SchemaVersion;
\r
44 import org.onap.aai.setup.Translator;
\r
45 import org.onap.crud.exception.CrudException;
\r
46 import org.onap.crud.logging.CrudServiceMsgs;
\r
47 import org.springframework.beans.factory.annotation.Autowired;
\r
49 import com.google.common.collect.Multimap;
\r
51 public class EdgeRulesLoader {
\r
53 private static Translator translator;
\r
54 private static EdgeIngestor edgeIngestor;
\r
56 private static EdgePropsConfiguration edgePropsConfiguration;
\r
58 private static Map<String, RelationshipSchema> versionContextMap =
\r
59 new ConcurrentHashMap<> ();
\r
61 static final Pattern versionPattern = Pattern.compile("(?i)v(\\d*)");
\r
62 static final String propsPrefix = "edge_properties_";
\r
63 static final String propsSuffix = ".json";
\r
64 final static Pattern propsFilePattern = Pattern.compile ( propsPrefix + "(.*)" + propsSuffix );
\r
65 final static Pattern propsVersionPattern = Pattern.compile("(?i)v(\\d*)");
\r
67 private static org.onap.aai.cl.api.Logger logger =
\r
68 LoggerFactory.getInstance ().getLogger ( EdgeRulesLoader.class.getName () );
\r
70 private EdgeRulesLoader () { }
\r
73 public EdgeRulesLoader(Translator translator, EdgeIngestor edgeIngestor, EdgePropsConfiguration edgePropsConfiguration) {
\r
74 EdgeRulesLoader.translator = translator;
\r
75 EdgeRulesLoader.edgeIngestor = edgeIngestor;
\r
76 EdgeRulesLoader.edgePropsConfiguration = edgePropsConfiguration;
\r
80 public void init() throws CrudException {
\r
81 EdgeRulesLoader.loadModels();
\r
85 * Finds all DB Edge Rules and Edge Properties files for all OXM models.
\r
87 * @throws CrudException
\r
89 public static synchronized void loadModels () throws CrudException {
\r
90 Map<String, File> propFiles = edgePropertyFiles(edgePropsConfiguration);
\r
92 if (logger.isDebugEnabled()) {
\r
93 logger.debug("Loading DB Edge Rules");
\r
96 for (String version : OxmModelLoader.getLoadedOXMVersions()) {
\r
98 SchemaVersion schemaVersion = translator.getSchemaVersions().getVersions().stream()
\r
99 .filter(s -> s.toString().equalsIgnoreCase(version)).findAny().orElse(null);
\r
100 loadModel(schemaVersion, edgeIngestor, propFiles);
\r
101 } catch (IOException | EdgeRuleNotFoundException e) {
\r
102 throw new CrudException(e.getMessage (), e);
\r
108 * Loads DB Edge Rules and Edge Properties for a given version.
\r
110 * @throws CrudException
\r
113 public static synchronized void loadModels ( String v ) throws CrudException {
\r
114 Map<String, File> propFiles = edgePropertyFiles(edgePropsConfiguration);
\r
116 if (logger.isDebugEnabled()) {
\r
117 logger.debug("Loading DB Edge Rules ");
\r
121 SchemaVersion schemaVersion = translator.getSchemaVersions().getVersions().stream()
\r
122 .filter(s -> s.toString().equalsIgnoreCase(v)).findAny().orElse(null);
\r
124 loadModel(schemaVersion, edgeIngestor, propFiles);
\r
125 } catch (IOException | EdgeRuleNotFoundException e) {
\r
126 throw new CrudException(e.getMessage (), Status.INTERNAL_SERVER_ERROR);
\r
131 * Retrieves the DB Edge Rule relationship schema for a given version.
\r
133 * @param version - The OXM version that we want the DB Edge Rule for.
\r
134 * @return - A RelationshipSchema of the DB Edge Rule for the OXM version.
\r
135 * @throws CrudException
\r
137 public static RelationshipSchema getSchemaForVersion ( String version ) throws CrudException {
\r
139 // If we haven't already loaded in the available OXM models, then do so now.
\r
140 if (versionContextMap == null || versionContextMap.isEmpty ()) {
\r
142 } else if (!versionContextMap.containsKey ( version )) {
\r
143 logger.error ( CrudServiceMsgs.OXM_LOAD_ERROR, "Error loading DB Edge Rules for: " + version );
\r
144 throw new CrudException ( "Error loading DB Edge Rules for: " + version, Status.NOT_FOUND );
\r
147 return versionContextMap.get ( version );
\r
151 * Retrieves the DB Edge Rule relationship schema for all loaded OXM versions.
\r
153 * @return - A Map of the OXM version and it's corresponding RelationshipSchema of the DB Edge Rule.
\r
154 * @throws CrudException
\r
156 public static Map<String, RelationshipSchema> getSchemas () throws CrudException {
\r
158 // If we haven't already loaded in the available OXM models, then do so now.
\r
159 if (versionContextMap == null || versionContextMap.isEmpty ()) {
\r
162 return versionContextMap;
\r
166 * Returns the latest available DB Edge Rule version.
\r
168 * @return - A Map of the OXM version and it's corresponding RelationshipSchema of the DB Edge Rule.
\r
169 * @throws CrudException
\r
171 public static String getLatestSchemaVersion () throws CrudException {
\r
173 // If we haven't already loaded in the available OXM models, then do so now.
\r
174 if (versionContextMap == null || versionContextMap.isEmpty ()) {
\r
178 // If there are still no models available, then there's not much we can do...
\r
179 if (versionContextMap.isEmpty ()) {
\r
180 logger.error ( CrudServiceMsgs.OXM_LOAD_ERROR, "No available DB Edge Rules to get latest version for." );
\r
181 throw new CrudException ( "No available DB Edge Rules to get latest version for.",
\r
182 Status.INTERNAL_SERVER_ERROR );
\r
185 // Iterate over the available model versions to determine which is the most
\r
187 Integer latestVersion = null;
\r
188 String latestVersionStr = null;
\r
189 for (String versionKey : versionContextMap.keySet ()) {
\r
191 Matcher matcher = versionPattern.matcher(versionKey);
\r
192 if (matcher.find ()) {
\r
194 int currentVersion = Integer.parseInt ( matcher.group ( 1 ) );
\r
196 if ((latestVersion == null) || (currentVersion > latestVersion)) {
\r
197 latestVersion = currentVersion;
\r
198 latestVersionStr = versionKey;
\r
203 return latestVersionStr;
\r
207 * Reset the loaded DB Edge Rule schemas
\r
211 public static void resetSchemaVersionContext () {
\r
212 versionContextMap = new ConcurrentHashMap<> ();
\r
215 private static synchronized void loadModel(SchemaVersion version, EdgeIngestor edgeIngestor,
\r
216 Map<String, File> props) throws IOException, CrudException, EdgeRuleNotFoundException {
\r
218 Multimap<String, EdgeRule> edges = edgeIngestor.getAllRules ( version );
\r
220 if (props.get ( version.toString().toLowerCase () ) != null) {
\r
221 edgeProps = IOUtils.toString ( new FileInputStream ( props.get ( version.toString().toLowerCase () ) ), "UTF-8" );
\r
223 throw new FileNotFoundException ( "The Edge Properties file for OXM version " + version + "was not found." );
\r
225 if (edges != null) {
\r
226 RelationshipSchema rs = new RelationshipSchema ( edges, edgeProps );
\r
227 versionContextMap.put ( version.toString ().toLowerCase (), rs );
\r
228 logger.info ( CrudServiceMsgs.LOADED_DB_RULE_FILE, version.toString () );
\r
232 private static Map<String, File> edgePropertyFiles ( EdgePropsConfiguration edgePropsConfiguration ) throws CrudException {
\r
233 Map<String, File> propsFiles = Arrays.stream ( new File ( edgePropsConfiguration.getEdgePropsDir () )
\r
234 .listFiles ( ( d, name ) -> propsFilePattern.matcher ( name ).matches () ) )
\r
235 .collect ( Collectors.toMap ( new Function<File, String> () {
\r
237 public String apply ( File f ) {
\r
238 Matcher m1 = propsVersionPattern.matcher ( f.getName () );
\r
240 return m1.group ( 0 );
\r