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/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
* Copyright © 2017-2018 European Software Marketing Ltd.
* ================================================================================
* 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.aai.babel.request;
import java.util.Optional;
import javax.ws.rs.core.HttpHeaders;
/** Bean to represent the ECOMP request/transaction IDs required for EELF logging. */
public class RequestHeaders {
// ECOMP request ID a.k.a. transaction ID or correlation ID
public static final String HEADER_REQUEST_ID = "X-ECOMP-RequestID";
public static final String HEADER_SERVICE_INSTANCE_ID = "X-ECOMP-ServiceInstanceID";
// This value should match with org.openecomp.restclient.client.Headers.TRANSACTION_ID
private static final String HEADER_X_TRANSACTION_ID = "X-TransactionId";
private String requestId;
private String instanceId;
private String transactionId;
public RequestHeaders(HttpHeaders headers) {
requestId = headers.getHeaderString(RequestHeaders.HEADER_REQUEST_ID);
instanceId = headers.getHeaderString(RequestHeaders.HEADER_SERVICE_INSTANCE_ID);
transactionId = headers.getHeaderString(RequestHeaders.HEADER_X_TRANSACTION_ID);
}
public String getRequestId() {
return requestId;
}
public String getInstanceId() {
return instanceId;
}
public String getTransactionId() {
return transactionId;
}
/**
* Get the global request ID from the HTTP headers. The value will be taken from the header "X-ECOMP-RequestID" if
* this is set, or else the value of "X-TransactionId" (which may be null).
*
* <p>
* If the correlation ID contains the symbol : then this character and any trailing characters are removed. This
* allows for an incrementing numeric sequence where there are multiple HTTP requests for a single transaction.
*
* @return the normalsed UUID used for correlating transactions across components, or else null (if no ID is set)
*/
public String getCorrelationId() {
// If the request ID is missing, use the transaction ID (if present)
String uuid = Optional.ofNullable(getRequestId()).orElse(getTransactionId());
// Normalize the correlation ID by removing any suffix
if (uuid != null && uuid.contains(":")) {
uuid = uuid.split(":")[0];
}
return uuid;
}
@Override
public String toString() {
return "RequestHeaders [requestId=" + requestId + ", instanceId=" + instanceId + ", transactionId="
+ transactionId + "]";
}
}
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