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/*-
* ============LICENSE_START=======================================================
* SDC
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. 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.sdc.ci.tests.utilities;
import java.io.File;
import java.io.IOException;
import java.util.List;
import java.util.regex.Pattern;
import org.apache.commons.codec.binary.Base64;
import org.apache.commons.io.FileUtils;
public class GeneralUtility {
public static boolean generateTextFile(String fileName, String fileData) {
boolean isSuccessfull = true;
try {
FileUtils.writeStringToFile(new File(fileName), fileData);
} catch (IOException e) {
isSuccessfull = false;
}
return isSuccessfull;
}
/**
* Use with care, usage is not advised!!!
* The method only checks if String does not contain special characters + length divided by 4 with no remainder.
* The methods contained in other common libraries do the same.
*/
public static boolean isBase64Encoded(byte[] data) {
return Base64.isBase64(data);
}
/**
*Use with care, usage is not advised!!!
* The method only checks if String does not contain special characters + length divided by 4 with no remainder.
* The methods contained in other common libraries do the same.
*/
public static boolean isBase64Encoded(String str) {
boolean isEncoded = false;
try {
// checks if the string was properly padded to the
isEncoded = ((str.length() % 4 == 0) && (Pattern.matches("\\A[a-zA-Z0-9/+]+={0,2}\\z", str)));
if (isEncoded) {
// If no exception is caught, then it is possibly a base64
// encoded string
byte[] data = Base64.decodeBase64(str);
}
} catch (Exception e) {
// If exception is caught, then it is not a base64 encoded string
isEncoded = false;
}
return isEncoded;
}
/**
* Checks whether the passed string exceeds a limit of number of characters.
*
* @param str
* @param limit
* @return the result of comparison, or false if str is null.
*/
public static boolean isExceedingLimit(String str, int limit) {
if (str == null) {
return false;
}
return str.length() > limit;
}
/**
* Checks the passed string list whether the cumulative length of strings and delimiters between them exceeds a limit of number of characters. For example for list ("one","two","three") with delimiter "," the length of list is calculated
* 3+1+3+1+5=13
*
* @param strList
* @param limit
* @param delimiterLength
* - 0 if there is no delimeter.
* @return the result of comparison, or false if strList is null.
*/
public static boolean isExceedingLimit(List<String> strList, int limit, int delimiterLength) {
if (strList == null || strList.isEmpty()) {
return false;
}
int sum = 0;
int size = strList.size();
for (int i = 0; i < size - 1; i++) {
String str = strList.get(i);
if (str != null) {
sum += str.length();
}
sum += delimiterLength;
}
String str = strList.get(size - 1);
if (str != null) {
sum += str.length();
}
return sum > limit;
}
/**
* Return the extension as the substring from the last dot. For input "kuku.txt", "txt" will be returned. If no dot is found or input is null, empty string is returned.
*
* @param fileName
* @return extension
*/
public static String getFilenameExtension(String fileName) {
String res = Constants.EMPTY_STRING;
if (fileName != null) {
int indexOf = fileName.lastIndexOf('.');
if (indexOf != -1 && indexOf < (fileName.length() - 1)) {
res = fileName.substring(indexOf + 1);
}
}
return res;
}
public static String calculateMD5ByByteArray(byte[] payload) {
String decodedMd5 = org.apache.commons.codec.digest.DigestUtils.md5Hex(payload);
byte[] encodeMd5 = Base64.encodeBase64(decodedMd5.getBytes());
return new String(encodeMd5);
}
/**
*
* @param data
* @return
*/
public static String calculateMD5ByString(String data) {
String calculatedMd5 = org.apache.commons.codec.digest.DigestUtils.md5Hex(data);
// encode base-64 result
byte[] encodeBase64 = Base64.encodeBase64(calculatedMd5.getBytes());
return new String(encodeBase64);
}
}
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