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/**
* Copyright 2018 ZTE Corporation.
* <p>
* 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
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* 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.holmes.common.utils.transactionid;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class TransactionIdUtils {
public static final String REQUEST_ID_HEADER = "X-TransactionID";
public static final String INVOCATIONIDID_HEADER = "X-InvocationID";
private static final Pattern UUID_PATTERN = Pattern.compile("^[0-9a-f]{8}(-[0-9a-f]{4}){3}-[0-9a-f]{12}$");
public static String getUUID() {
return java.util.UUID.randomUUID().toString();
}
public static String validate(String uuid) {
Matcher matcher = UUID_PATTERN.matcher(uuid);
if (matcher.matches()) {
return uuid;
}
return null;
}
}
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