1 files changed, 117 insertions, 0 deletions
diff --git a/activiti-extension/src/main/java/org/onap/workflow/activitiext/restservicetask/GsonUtil.java b/activiti-extension/src/main/java/org/onap/workflow/activitiext/restservicetask/GsonUtil.java
new file mode 100644
index 0000000..2e0aa77
--- /dev/null
+++ b/activiti-extension/src/main/java/org/onap/workflow/activitiext/restservicetask/GsonUtil.java
@@ -0,0 +1,117 @@
+/**
+ * Copyright 2017 ZTE Corporation.
+ *
+ * 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.
+ */
+package org.onap.workflow.activitiext.restservicetask;
+
+import java.util.Map.Entry;
+
+import org.activiti.engine.delegate.DelegateExecution;
+import org.onap.workflow.activitiext.common.ConstString;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.gson.JsonArray;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonPrimitive;
+
+public class GsonUtil {
+	
+	private static final Logger logger = LoggerFactory.getLogger(GsonUtil.class);
+	
+	public static JsonObject formatJsonObject(String key, JsonObject obj, DelegateExecution execution) {
+
+		JsonObject res = new JsonObject();
+		
+		for (Entry<String, JsonElement> entry : obj.entrySet()) {
+			
+			if (entry.getValue() instanceof JsonObject) {
+				
+				JsonObject tempObj = (JsonObject) entry.getValue();
+				JsonElement valueSource = tempObj.get(ConstString.PARAMETER_VALUESOURCE);
+				if(valueSource == null || valueSource.getAsString().equals(ConstString.PARAMETER_VALUE_SOURCE_DEFINITION))
+				{
+					res.add(entry.getKey(), formatJsonObject(entry.getKey(), entry.getValue().getAsJsonObject(), execution));
+				}else{
+					res.addProperty(entry.getKey(), getValue(tempObj, execution));
+				}
+
+			} else if (entry.getValue() instanceof JsonArray) {
+
+				JsonArray objArray = entry.getValue().getAsJsonArray();
+				JsonArray resArray = formatJsonArray(objArray, execution);
+				res.add(entry.getKey(), resArray);
+			}
+		}
+
+		return res;
+	}
+
+	public static JsonArray formatJsonArray(JsonArray objArray, DelegateExecution execution) {
+
+		JsonArray array = new JsonArray();
+
+		for (JsonElement element : objArray) {
+
+			if (element.isJsonObject()) {
+				
+				JsonObject tempObj = (JsonObject) element;
+				JsonElement valueSource = tempObj.get(ConstString.PARAMETER_VALUESOURCE);
+				if(valueSource == null || valueSource.getAsString().equals(ConstString.PARAMETER_VALUE_SOURCE_DEFINITION))
+				{
+					array.add(formatJsonObject(null, element.getAsJsonObject(), execution));
+				}else{
+					array.add(new JsonPrimitive(getValue(tempObj, execution)));
+				}
+				
+			} else if (element.isJsonArray()) {
+
+				array = formatJsonArray(element.getAsJsonArray(), execution);
+			}
+		}
+
+		return array;
+	}
+
+	/**
+	 * obtain jsonObject value
+	 * @param obj
+	 * @param execution
+	 * @return
+	 */
+	public static String getValue(JsonObject obj, DelegateExecution execution)
+	{
+		String result = new String();
+		try {
+			String valueSource = obj.get(ConstString.PARAMETER_VALUESOURCE).getAsString();
+			String value = obj.get(ConstString.PARAMETER_VALUE).getAsString();
+			if(ConstString.PARAMETER_VALUE_SOURCE_STRING.equals(valueSource))
+			{
+				result = value;
+			}else if(ConstString.PARAMETER_VALUE_SOURCE_PLAN.equals(valueSource))
+			{
+				result = HttpUtil.parsePlanExpression(value, execution);
+			}else if(ConstString.PARAMETER_VALUE_SOURCE_TOPOLOGY.equals(valueSource))
+			{
+				result = HttpUtil.parseTopologyExpression(value, execution);
+			}
+		} catch (Exception e) {
+			logger.error("jsonObject {} is illegal!", obj.toString(), e);
+			throw e;
+		}
+		
+		return result;
+	}
+}