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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.openecomp.sdc.generator.data;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.dataformat.yaml.YAMLFactory;
import org.apache.commons.codec.digest.DigestUtils;
import java.io.IOException;
import java.util.Base64;
/**
* Utility method class for artifact generation.
*/
public class GeneratorUtil {
/**
* Translate tosca yaml into the provided model class.
*
* @param tosca Tosca file content
* @param classOfT Model class for the translated object
* @param <T> Template parameter for the return object
* @return Object model for the provided tosca yaml file
*/
public static <T> T translateTosca(String tosca, Class<T> classOfT) throws IOException {
T tos;
//changing file
ObjectMapper mapper = new ObjectMapper(new YAMLFactory()); // jackson data-bind
mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
tos = mapper.readValue(tosca, classOfT);
return tos;
}
/**
* Decodes Base64 encode byte array input.
*
* @param input Base64 encoded byte array
* @return Decoded byte array
*/
public static byte[] decoder(byte[] input) {
if (input != null) {
byte[] output = Base64.getDecoder().decode(input);
return output;
}
return null;
}
/**
* Encode a byte array input using Base64 encoding.
*
* @param input Input byte array to be encoded
* @return Base64 encoded byte array
*/
public static byte[] encode(byte[] input) {
if (input != null) {
byte[] output = Base64.getEncoder().encode(input);
return output;
}
return null;
}
/**
* Calculate the checksum for a given input.
*
* @param input Byte array for which the checksum has to be calculated
* @return Calculated checksum of the input byte array
*/
public static String checkSum(byte[] input) {
String checksum = null;
if (input != null) {
checksum = (DigestUtils.md5Hex(input)).toUpperCase();
}
return checksum;
}
/**
* Check if string is empty or null.
*
* @param input Input String
* @return true if string is empty/null and false otherwise
*/
public static boolean isEmpty(String input) {
return input == null || input.length() == 0;
}
}
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