X-Git-Url: https://gerrit.onap.org/r/gitweb?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Forg%2Fopenecomp%2Fdatarouter%2Futil%2FNodeUtils.java;h=d98b2e64bb0c88e603989b57d20591e6a2193c98;hb=b23528b8b1f60ff4f2f87a654f7a5d3f3edbbd0f;hp=f9572473670da33cb10de70eaebe6fcbae7aaac1;hpb=60f7f5e11d7d0d7870a4650956921bd1afa309fd;p=aai%2Fdata-router.git

diff --git a/src/main/java/org/openecomp/datarouter/util/NodeUtils.java b/src/main/java/org/openecomp/datarouter/util/NodeUtils.java
index f957247..d98b2e6 100644
--- a/src/main/java/org/openecomp/datarouter/util/NodeUtils.java
+++ b/src/main/java/org/openecomp/datarouter/util/NodeUtils.java
@@ -1,16 +1,15 @@
 /**
  * ============LICENSE_START=======================================================
- * DataRouter
+ * org.onap.aai
  * ================================================================================
- * Copyright © 2017 AT&T Intellectual Property.
+ * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
  * 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 at
  *
- *    http://www.apache.org/licenses/LICENSE-2.0
+ *       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,
@@ -19,12 +18,21 @@
  * limitations under the License.
  * ============LICENSE_END=========================================================
  *
- * ECOMP and OpenECOMP are trademarks
- * and service marks of AT&T Intellectual Property.
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
  */
 package org.openecomp.datarouter.util;
 
+import java.io.IOException;
 import java.util.Arrays;
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.Map;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.ObjectWriter;
+import com.fasterxml.jackson.databind.SerializationFeature;
 
 public class NodeUtils {
   /**
@@ -43,4 +51,127 @@ public class NodeUtils {
   
     return hashedId;
   }
+  
+  /**
+   * Extract field value from object.
+   *
+   * @param node the node
+   * @param fieldName the field name
+   * @return the string
+   */
+  public static String extractFieldValueFromObject(JsonNode node, String fieldName) {
+
+    if (node == null) {
+      return null;
+    }
+
+    if (node.isObject()) {
+
+      JsonNode valueNode = node.get(fieldName);
+
+      if (valueNode != null) {
+
+        if (valueNode.isValueNode()) {
+          return valueNode.asText();
+        }
+      }
+
+    }
+    return null;
+
+  }
+
+  /**
+   * Convert json str to json node.
+   *
+   * @param jsonStr the json str
+   * @return the json node
+   * @throws IOException Signals that an I/O exception has occurred.
+   */
+  public static JsonNode convertJsonStrToJsonNode(String jsonStr) throws IOException {
+    ObjectMapper mapper = new ObjectMapper();
+    if (jsonStr == null || jsonStr.length() == 0) {
+      return null;
+    }
+
+    return mapper.readTree(jsonStr);
+  }
+  
+  /**
+   * Extract objects by key.
+   *
+   * @param node the node
+   * @param searchKey the search key
+   * @param foundObjects the found objects
+   */
+  public static void extractObjectsByKey(JsonNode node, String searchKey,
+      Collection<JsonNode> foundObjects) {
+
+    if ( node == null ) {
+      return;
+    }
+    
+    if (node.isObject()) {
+      Iterator<Map.Entry<String, JsonNode>> nodeIterator = node.fields();
+
+      while (nodeIterator.hasNext()) {
+        Map.Entry<String, JsonNode> entry = nodeIterator.next();
+        if (!entry.getValue().isValueNode()) {
+          extractObjectsByKey(entry.getValue(), searchKey, foundObjects);
+        }
+
+        String name = entry.getKey();
+        if (name.equalsIgnoreCase(searchKey)) {
+
+          JsonNode entryNode = entry.getValue();
+
+          if (entryNode.isArray()) {
+
+            Iterator<JsonNode> arrayItemsIterator = entryNode.elements();
+            while (arrayItemsIterator.hasNext()) {
+              foundObjects.add(arrayItemsIterator.next());
+            }
+
+          } else {
+            foundObjects.add(entry.getValue());
+          }
+
+
+        }
+      }
+    } else if (node.isArray()) {
+      Iterator<JsonNode> arrayItemsIterator = node.elements();
+      while (arrayItemsIterator.hasNext()) {
+        extractObjectsByKey(arrayItemsIterator.next(), searchKey, foundObjects);
+      }
+
+    }
+
+  }
+  
+  /**
+   * Convert object to json.
+   *
+   * @param object the object
+   * @param pretty the pretty
+   * @return the string
+   * @throws JsonProcessingException the json processing exception
+   */
+  public static String convertObjectToJson(Object object, boolean pretty)
+      throws JsonProcessingException {
+    ObjectWriter ow = null;
+
+    ObjectMapper mapper = new ObjectMapper();
+    mapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
+    
+    if (pretty) {
+      ow = mapper.writer().withDefaultPrettyPrinter();
+
+    } else {
+      ow = mapper.writer();
+    }
+
+    return ow.writeValueAsString(object);
+  }
+
 }