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/*
* ============LICENSE_START=======================================================
* PNF-REGISTRATION-HANDLER
* ================================================================================
* Copyright (C) 2018 Nokia. 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
*
* 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=========================================================
*/
package org.onap.pnfsimulator.simulator;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import org.springframework.stereotype.Component;
import java.util.Map;
@Component
class TemplatePatcher {
JsonObject mergeTemplateWithPatch(JsonObject templateJson, JsonObject patchJson) {
JsonObject template = templateJson.deepCopy();
patchTemplateNode(template, patchJson);
return template;
}
private void patchTemplateNode(JsonObject templateJson, JsonObject patchJson) {
for (Map.Entry<String, JsonElement> stringJsonElementEntry : patchJson.entrySet()) {
String patchKey = stringJsonElementEntry.getKey();
JsonElement patchValue = stringJsonElementEntry.getValue();
JsonElement templateElement = templateJson.get(patchKey);
if (!patchValue.isJsonObject() || templateElement == null || !templateElement.isJsonObject()) {
templateJson.remove(patchKey);
templateJson.add(patchKey, patchValue);
} else {
patchTemplateNode(templateElement.getAsJsonObject(), patchValue.getAsJsonObject());
}
}
}
}
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