--- /dev/null
+/**
+ * ============LICENSE_START=======================================================
+ * Search Data Service
+ * ================================================================================
+ * Copyright © 2017 AT&T Intellectual Property.
+ * Copyright © 2017 Amdocs
+ * All rights reserved.
+ * ================================================================================
+ * 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 ati
+ *
+ * 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=========================================================
+ *
+ * ECOMP and OpenECOMP are trademarks
+ * and service marks of AT&T Intellectual Property.
+ */
+package org.openecomp.sa.rest;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.openecomp.cl.api.Logger;
+import org.openecomp.cl.eelf.LoggerFactory;
+import org.openecomp.sa.rest.AnalyzerSchema;
+import org.openecomp.sa.rest.FilterSchema;
+import org.openecomp.sa.searchdbabstraction.logging.SearchDbMsgs;
+import org.openecomp.sa.searchdbabstraction.util.SearchDbConstants;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+/**
+ * This class encapsulates the configuration of the predefined
+ * Analyzer and Filter behaviours that help to tell the document
+ * store how to index the documents that are provided to it.
+ */
+public class AnalysisConfiguration {
+
+ /**
+ * Contains all of the predefined indexing filters.
+ */
+ private FilterSchema[] customFilters;
+
+ /**
+ * Contains all of the predefined indexing analyzers.
+ */
+ private AnalyzerSchema[] customAnalysers;
+
+ /**
+ * Indicates whether or not we have imported the filter and
+ * analyzer configurations.
+ */
+ private AtomicBoolean configured = new AtomicBoolean(false);
+
+ /**
+ * A json format string which is readable by Elastic Search and defines
+ * all of the custom filters and analyzers that we need Elastic Search
+ * to know about.
+ */
+ private static String esSettings = null;
+
+ private static Logger logger = LoggerFactory.getInstance()
+ .getLogger(AnalysisConfiguration.class.getName());
+
+
+ /**
+ * Imports the filter and analyzer configuration files and
+ * builds an Elastic Search readable settings file from the
+ * contents.
+ *
+ * @param filterConfigFile - Location of filter configuration json file
+ * @param analyzerConfigFile - Location of analyzer configuration json file
+ */
+ public void init(String filterConfigFile, String analyzerConfigFile) {
+
+ if (configured.compareAndSet(false, true)) {
+ ObjectMapper mapper = new ObjectMapper();
+
+ File filtersConfig = new File(filterConfigFile);
+ try {
+ customFilters = mapper.readValue(filtersConfig, FilterSchema[].class);
+ } catch (IOException e) {
+
+ // generate log
+ logger.warn(SearchDbMsgs.FILTERS_CONFIG_FAILURE, filterConfigFile, e.getMessage());
+ }
+
+ File analysersConfig = new File(analyzerConfigFile);
+ try {
+ customAnalysers = mapper.readValue(analysersConfig, AnalyzerSchema[].class);
+ } catch (IOException e) {
+
+ // generate log
+ logger.warn(SearchDbMsgs.ANALYSYS_CONFIG_FAILURE, analyzerConfigFile, e.getMessage());
+ }
+
+ esSettings = buildEsIndexSettings();
+ }
+ }
+
+
+ /**
+ * Returns the set of pre-configured filters.
+ *
+ * @return - An array of filters.
+ */
+ public FilterSchema[] getFilters() {
+ return customFilters;
+ }
+
+
+ /**
+ * Returns the set of pre-configured analyzers.
+ *
+ * @return - An array of analyzers.
+ */
+ public AnalyzerSchema[] getAnalyzers() {
+ init(SearchDbConstants.SDB_FILTER_CONFIG_FILE, SearchDbConstants.SDB_ANALYSIS_CONFIG_FILE);
+ return customAnalysers;
+ }
+
+
+ /**
+ * Imports the filter and analyzer configurations and translates those
+ * into a settings string that will be parseable by Elastic Search.
+ *
+ * @return - Elastic Search formatted settings string.
+ */
+ public String getEsIndexSettings() {
+
+ // Generate the es-settings string from our filter and analyzer
+ // configurations if we have not already done so.
+ init(SearchDbConstants.SDB_FILTER_CONFIG_FILE, SearchDbConstants.SDB_ANALYSIS_CONFIG_FILE);
+
+ // Now, return the es-settings string.
+ return esSettings;
+ }
+
+
+ /**
+ * Constructs a settings string that is readable by Elastic Search based
+ * on the contents of the filter and analyzer configuration files.
+ *
+ * @return Elastic Search formatted settings string.
+ */
+ public String buildEsIndexSettings() {
+
+ StringBuilder sb = new StringBuilder();
+
+ sb.append("{");
+ sb.append("\"analysis\": {");
+
+ // Define the custom filters.
+ boolean atLeastOneFilter = false;
+ sb.append("\"filter\": {");
+ AtomicBoolean firstFilter = new AtomicBoolean(true);
+ for (FilterSchema filter : customFilters) {
+
+ // Append a comma before the next entry, unless it is the
+ // first one.
+ if (!firstFilter.compareAndSet(true, false)) {
+ sb.append(", ");
+ }
+
+ // Now, build the filter entry.
+ buildFilterEntry(filter, sb);
+ atLeastOneFilter = true;
+ }
+ sb.append((atLeastOneFilter) ? "}," : "}");
+
+ // Define the custom analyzers.
+ sb.append("\"analyzer\": {");
+ AtomicBoolean firstAnalyzer = new AtomicBoolean(true);
+ for (AnalyzerSchema analyzer : customAnalysers) {
+
+ // Prepend a comma before the entry, unless it is the
+ // first one.
+ if (!firstAnalyzer.compareAndSet(true, false)) {
+ sb.append(",");
+ }
+
+ // Now, construct the entry for this analyzer.
+ buildAnalyzerEntry(analyzer, sb);
+ }
+ sb.append("}");
+
+ sb.append("}");
+ sb.append("}");
+
+ return sb.toString();
+ }
+
+
+ /**
+ * Constructs an ElasticSearch friendly custom filter definition.
+ *
+ * @param filter - The filter to generate ElasticSearch json for.
+ * @param sb - The string builder to append the filter definition
+ * to.
+ */
+ private void buildFilterEntry(FilterSchema filter, StringBuilder sb) {
+
+ sb.append("\"" + filter.getName()).append("\": {");
+
+ sb.append(filter.getConfiguration());
+
+ sb.append("}");
+ }
+
+
+ /**
+ * Constructs an ElasticSearch friendly custom analyzer definition.
+ *
+ * @param analyzer - The analyzer to generate ElasticSearch json for.
+ * @param sb - The string builder to append the analyzer definition
+ * to.
+ */
+ private void buildAnalyzerEntry(AnalyzerSchema analyzer, StringBuilder sb) {
+
+ sb.append("\"").append(analyzer.getName()).append("\": {");
+ sb.append("\"type\": \"custom\",");
+ sb.append("\"tokenizer\": ").append("\"").append(analyzer.getTokenizer()).append("\",");
+ sb.append("\"filter\": [");
+ boolean firstFilter = true;
+ for (String filter : analyzer.getFilters()) {
+ if (!firstFilter) {
+ sb.append(",");
+ } else {
+ firstFilter = false;
+ }
+ sb.append("\"").append(filter).append("\"");
+ }
+ sb.append("]");
+ sb.append("}");
+ }
+}
Code Review / aai / search-data-service.git / blobdiff