--- /dev/null
+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * Copyright © 2017-2018 Amdocs
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.aai.spike.schema;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.function.Function;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+import com.google.common.collect.Multimap;
+import org.apache.commons.io.IOUtils;
+import org.onap.aai.cl.eelf.LoggerFactory;
+import org.onap.aai.edges.EdgeIngestor;
+import org.onap.aai.edges.EdgeRule;
+import org.onap.aai.edges.exceptions.EdgeRuleNotFoundException;
+import org.onap.aai.setup.ConfigTranslator;
+import org.onap.aai.setup.SchemaLocationsBean;
+import org.onap.aai.setup.Version;
+import org.onap.aai.spike.exception.SpikeException;
+import org.onap.aai.spike.logging.SpikeMsgs;
+import org.onap.aai.spike.util.SchemaIngestPropertiesReader;
+
+
+public class EdgeRulesLoader {
+
+ private static Map<String, RelationshipSchema> versionContextMap = new ConcurrentHashMap<>();
+
+ static final Pattern versionPattern = Pattern.compile("V(\\d*)");
+ static final String propsPrefix = "edge_properties_";
+ static final String propsSuffix = ".json";
+ final static Pattern propsFilePattern = Pattern.compile(propsPrefix + "(.*)" + propsSuffix);
+ final static Pattern propsVersionPattern = Pattern.compile("v\\d*");
+
+ private static org.onap.aai.cl.api.Logger logger =
+ LoggerFactory.getInstance().getLogger(EdgeRulesLoader.class.getName());
+
+ private EdgeRulesLoader() {}
+
+ /**
+ * Finds all DB Edge Rules and Edge Properties files for all OXM models.
+ *
+ * @throws SpikeException
+ */
+ public static synchronized void loadModels() throws SpikeException {
+ SchemaIngestPropertiesReader SchemaIngestPropertiesReader = new SchemaIngestPropertiesReader();
+ SchemaLocationsBean schemaLocationsBean = new SchemaLocationsBean();
+ schemaLocationsBean.setEdgeDirectory(SchemaIngestPropertiesReader.getEdgeDir());
+ ConfigTranslator configTranslator = new OxmConfigTranslator(schemaLocationsBean);
+ EdgeIngestor edgeIngestor = new EdgeIngestor(configTranslator);
+ Map<String, File> propFiles = edgePropertyFiles(SchemaIngestPropertiesReader);
+
+ if (logger.isDebugEnabled()) {
+ logger.debug("Loading DB Edge Rules");
+ }
+
+ for (String version : OXMModelLoader.getLoadedOXMVersions()) {
+ try {
+ loadModel(Version.valueOf(version), edgeIngestor, propFiles);
+ } catch (IOException | EdgeRuleNotFoundException e) {
+ throw new SpikeException(e.getMessage(), e);
+ }
+ }
+ }
+
+ /**
+ * Loads DB Edge Rules and Edge Properties for a given version.
+ *
+ * @throws SpikeException
+ */
+
+ public static synchronized void loadModels(String v) throws SpikeException {
+ SchemaIngestPropertiesReader SchemaIngestPropertiesReader = new SchemaIngestPropertiesReader();
+ SchemaLocationsBean schemaLocationsBean = new SchemaLocationsBean();
+ schemaLocationsBean.setEdgeDirectory(SchemaIngestPropertiesReader.getEdgeDir());
+ ConfigTranslator configTranslator = new OxmConfigTranslator(schemaLocationsBean);
+ EdgeIngestor edgeIngestor = new EdgeIngestor(configTranslator);
+ String version = v.toUpperCase();
+ Map<String, File> propFiles = edgePropertyFiles(SchemaIngestPropertiesReader);
+
+ if (logger.isDebugEnabled()) {
+ logger.debug("Loading DB Edge Rules ");
+ }
+
+ try {
+ loadModel(Version.valueOf(version), edgeIngestor, propFiles);
+ } catch (IOException | EdgeRuleNotFoundException e) {
+ throw new SpikeException(e.getMessage());
+ }
+ }
+
+ /**
+ * Retrieves the DB Edge Rule relationship schema for a given version.
+ *
+ * @param version - The OXM version that we want the DB Edge Rule for.
+ * @return - A RelationshipSchema of the DB Edge Rule for the OXM version.
+ * @throws SpikeException
+ */
+ public static RelationshipSchema getSchemaForVersion(String version) throws SpikeException {
+
+ // If we haven't already loaded in the available OXM models, then do so now.
+ if (versionContextMap == null || versionContextMap.isEmpty()) {
+ loadModels();
+ } else if (!versionContextMap.containsKey(version)) {
+ logger.error(SpikeMsgs.OXM_LOAD_ERROR, "Error loading DB Edge Rules for: " + version);
+ throw new SpikeException("Error loading DB Edge Rules for: " + version);
+ }
+
+ return versionContextMap.get(version);
+ }
+
+ /**
+ * Retrieves the DB Edge Rule relationship schema for all loaded OXM versions.
+ *
+ * @return - A Map of the OXM version and it's corresponding RelationshipSchema of the DB Edge Rule.
+ * @throws SpikeException
+ */
+ public static Map<String, RelationshipSchema> getSchemas() throws SpikeException {
+
+ // If we haven't already loaded in the available OXM models, then do so now.
+ if (versionContextMap == null || versionContextMap.isEmpty()) {
+ loadModels();
+ }
+ return versionContextMap;
+ }
+
+ /**
+ * Returns the latest available DB Edge Rule version.
+ *
+ * @return - A Map of the OXM version and it's corresponding RelationshipSchema of the DB Edge Rule.
+ * @throws SpikeException
+ */
+ public static String getLatestSchemaVersion() throws SpikeException {
+
+ // If we haven't already loaded in the available OXM models, then do so now.
+ if (versionContextMap == null || versionContextMap.isEmpty()) {
+ loadModels();
+ }
+
+ // If there are still no models available, then there's not much we can do...
+ if (versionContextMap.isEmpty()) {
+ logger.error(SpikeMsgs.OXM_LOAD_ERROR, "No available DB Edge Rules to get latest version for.");
+ throw new SpikeException("No available DB Edge Rules to get latest version for.");
+ }
+
+ // Iterate over the available model versions to determine which is the most
+ // recent.
+ Integer latestVersion = null;
+ String latestVersionStr = null;
+ for (String versionKey : versionContextMap.keySet()) {
+
+ Matcher matcher = versionPattern.matcher(versionKey.toUpperCase());
+ if (matcher.find()) {
+
+ int currentVersion = Integer.parseInt(matcher.group(1));
+
+ if ((latestVersion == null) || (currentVersion > latestVersion)) {
+ latestVersion = currentVersion;
+ latestVersionStr = versionKey;
+ }
+ }
+ }
+
+ return latestVersionStr;
+ }
+
+ /**
+ * Reset the loaded DB Edge Rule schemas
+ *
+ */
+
+ public static void resetSchemaVersionContext() {
+ versionContextMap = new ConcurrentHashMap<>();
+ }
+
+ private static synchronized void loadModel(Version version, EdgeIngestor edgeIngestor, Map<String, File> props)
+ throws IOException, SpikeException, EdgeRuleNotFoundException {
+
+ Multimap<String, EdgeRule> edges = edgeIngestor.getAllRules(version);
+ String edgeProps;
+ if (props.get(version.toString().toLowerCase()) != null) {
+ edgeProps = IOUtils.toString(new FileInputStream(props.get(version.toString().toLowerCase())), "UTF-8");
+ } else {
+ throw new FileNotFoundException("The Edge Properties file for OXM version " + version + "was not found.");
+ }
+ if (edges != null) {
+ RelationshipSchema rs = new RelationshipSchema(edges, edgeProps);
+ versionContextMap.put(version.toString().toLowerCase(), rs);
+ logger.info(SpikeMsgs.LOADED_DB_RULE_FILE, version.toString());
+ }
+ }
+
+ private static Map<String, File> edgePropertyFiles(SchemaIngestPropertiesReader dir) throws SpikeException {
+ Map<String, File> propsFiles = Arrays
+ .stream(new File(dir.getEdgePropsDir())
+ .listFiles((d, name) -> propsFilePattern.matcher(name).matches()))
+ .collect(Collectors.toMap(new Function<File, String>() {
+ public String apply(File f) {
+ Matcher m1 = propsVersionPattern.matcher(f.getName());
+ m1.find();
+ return m1.group(0);
+ }
+ }, f -> f));
+ return propsFiles;
+ }
+}
Code Review / aai / spike.git / blobdiff