1 files changed, 123 insertions, 0 deletions
diff --git a/src/main/java/org/openecomp/sa/searchdbabstraction/util/DocumentSchemaUtil.java b/src/main/java/org/openecomp/sa/searchdbabstraction/util/DocumentSchemaUtil.java
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@@ -0,0 +1,123 @@
+/**
+ * ============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.searchdbabstraction.util;
+
+import com.fasterxml.jackson.core.JsonParseException;
+import com.fasterxml.jackson.databind.JsonMappingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.openecomp.sa.rest.DocumentFieldSchema;
+import org.openecomp.sa.rest.DocumentSchema;
+
+import java.io.IOException;
+import java.util.List;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+public class DocumentSchemaUtil {
+
+  public static String generateDocumentMappings(String documentSchema)
+      throws JsonParseException, JsonMappingException, IOException {
+
+    // Unmarshal the json content into a document schema object.
+    ObjectMapper mapper = new ObjectMapper();
+    DocumentSchema schema = mapper.readValue(documentSchema, DocumentSchema.class);
+
+    return generateDocumentMappings(schema);
+  }
+
+  public static String generateDocumentMappings(DocumentSchema schema) {
+
+    // Now, generate the Elastic Search mapping json and return it.
+    StringBuilder sb = new StringBuilder();
+    sb.append("{");
+    sb.append("\"properties\": {");
+
+    generateFieldMappings(schema.getFields(), sb);
+
+    sb.append("}");
+    sb.append("}");
+
+    return sb.toString();
+  }
+
+
+  private static void generateFieldMappings(List<DocumentFieldSchema> fields, StringBuilder sb) {
+
+    AtomicBoolean firstField = new AtomicBoolean(true);
+
+    for (DocumentFieldSchema field : fields) {
+
+      // If this isn't the first field in the list, prepend it with a ','
+      if (!firstField.compareAndSet(true, false)) {
+        sb.append(", ");
+      }
+
+      // Now, append the translated field contents.
+      generateFieldMapping(field, sb);
+    }
+  }
+
+  private static void generateFieldMapping(DocumentFieldSchema fieldSchema, StringBuilder sb) {
+
+    sb.append("\"").append(fieldSchema.getName()).append("\": {");
+
+    // The field type is mandatory.
+    sb.append("\"type\": \"").append(fieldSchema.getDataType()).append("\"");
+
+    // For date type fields we may optionally supply a format specifier.
+    if (fieldSchema.getDataType().equals("date")) {
+      if (fieldSchema.getFormat() != null) {
+        sb.append(", \"format\": \"").append(fieldSchema.getFormat()).append("\"");
+      }
+    }
+
+    // If the index field was specified, then append it.
+    if (fieldSchema.getSearchable() != null) {
+      sb.append(", \"index\": \"").append(fieldSchema.getSearchable()
+          ? "analyzed" : "not_analyzed").append("\"");
+    }
+
+    // If a search analyzer was specified, then append it.
+    if (fieldSchema.getSearchAnalyzer() != null) {
+      sb.append(", \"search_analyzer\": \"").append(fieldSchema.getSearchAnalyzer()).append("\"");
+    }
+
+    // If an indexing analyzer was specified, then append it.
+    if (fieldSchema.getIndexAnalyzer() != null) {
+      sb.append(", \"analyzer\": \"").append(fieldSchema.getIndexAnalyzer()).append("\"");
+    }
+
+
+    if (fieldSchema.getDataType().equals("nested")) {
+
+      sb.append(", \"properties\": {");
+      generateFieldMappings(fieldSchema.getSubFields(), sb);
+      sb.append("}");
+    }
+
+    sb.append("}");
+  }
+
+}
+