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/*
* ============LICENSE_START=======================================================
* PNF-REGISTRATION-HANDLER
* ================================================================================
* Copyright (C) 2019 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.Gson;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import java.util.Map.Entry;
import lombok.val;
import org.springframework.stereotype.Component;
@Component
public class TemplateVariablesReplacer {
private static final Gson GSON = new Gson();
private static final String OBJECT_KEYWORD_MARK = "#";
private static final String ESCAPED_QUOTE = "\"";
private static final String STRING_KEYWORD_MARK = ESCAPED_QUOTE + OBJECT_KEYWORD_MARK + "%s" + ESCAPED_QUOTE;
JsonObject substituteVariables(JsonObject source, JsonObject variables) {
var result = source.toString();
for (val variable : variables.entrySet()) {
result = substituteVariable(result, variable);
}
return GSON.fromJson(result, JsonObject.class);
}
private String substituteVariable(String sourceAsString, Entry<String, JsonElement> variable) {
return sourceAsString.replaceAll(String.format(STRING_KEYWORD_MARK, variable.getKey()), variable.getValue().toString());
}
}
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