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/*
* ============LICENSE_START=======================================================
* ONAP : DCAE
* ================================================================================
* Copyright 2019 China Mobile
*=================================================================================
* 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.datalake.feeder.util;
import java.io.File;
import java.io.IOException;
import org.apache.commons.io.FileUtils;
/**
* utils
*
* @author Guobiao Mo
*
*/
public class Util {
// https://commons.apache.org/proper/commons-io/description.html
public static String getTextFromFile(String fileName) throws IOException {
File file = new File(fileName);
String string = FileUtils.readFileToString(file, "UTF-8");
return string;
}
/**
* given a json file, remove dot(.) in all keys
* http://www.vogella.com/tutorials/JavaRegularExpressions/article.html
*/
public static String replaceDotInKey(String json) {
String regex = "(\"[\\-\\w]+)(\\.)([\\.\\-\\w]+\\\\?\"\\:)";
String newJson = json.replaceAll(regex, "$1_$3");
if (json.equals(newJson)) {
return json;
} else {
return replaceDotInKey(newJson);// there maybe more to replace
}
}
}
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