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/*
* Copyright 2016-2017, Nokia 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.vfc.nfvo.driver.vnfm.svnfm.nokia.util;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import org.slf4j.Logger;
/**
* Collection of utility functions
*/
public class CbamUtils {
/**
* Separator for multiple keys concatenated into a single string
*/
public static final String SEPARATOR = "_";
private CbamUtils() {
//use static way
}
/**
* @param parent the parent JSON object
* @param name the name of the child
* @return the child JSON object of parent with given name
*/
public static JsonObject child(JsonObject parent, String name) {
return childElement(parent, name).getAsJsonObject();
}
/**
* @param parent the parent JSON object
* @param name the name of the child
* @return the child JSON object of parent with given name
*/
public static JsonElement childElement(JsonObject parent, String name) {
JsonElement child = parent.get(name);
if (child == null) {
throw new OperationMustBeAborted("Missing child " + name);
}
return child;
}
/**
* Logs and returns a runtime exception
*
* @param logger the logger
* @param msg the error message
* @param e the exception to be wrapped
* @return never reached (runtime exception is thrown)
*/
public static RuntimeException buildFatalFailure(Logger logger, String msg, Exception e) {
logger.error(msg, e);
return new OperationMustBeAborted(e, msg);
}
/**
* Logs and returns a runtime exception
*
* @param logger the logger
* @param msg the error message
* @return never reached (runtime exception is thrown)
*/
public static RuntimeException buildFatalFailure(Logger logger, String msg) {
logger.error(msg);
return new OperationMustBeAborted(msg);
}
private static class OperationMustBeAborted extends RuntimeException {
OperationMustBeAborted(String msg) {
super(msg);
}
OperationMustBeAborted(Exception e, String msg) {
super(msg, e);
}
}
}
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