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/**
* 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;
}
}
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