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/*
* ============LICENSE_START====================================
* DCAEGEN2-SERVICES-SDK
* =========================================================
* Copyright (C) 2019 Nokia. 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.dcaegen2.services.sdk.rest.services.model.logging;
import io.vavr.collection.HashMap;
import io.vavr.collection.Map;
import java.util.UUID;
import org.immutables.value.Value;
import org.jetbrains.annotations.Nullable;
import org.slf4j.MDC;
/**
* @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>
* @since 1.1.2
*/
@Value.Immutable
public interface RequestDiagnosticContext {
UUID requestId();
@Nullable UUID invocationId();
@Value.Default
default GlobalDiagnosticContext global() {
return GlobalDiagnosticContext.instance();
}
@Value.Derived
default Map<String, String> remoteCallHttpHeaders() {
java.util.Map<String, String> result = new java.util.HashMap<>();
result.put(MdcVariables.httpHeader(MdcVariables.REQUEST_ID), requestId().toString());
if (invocationId() != null) {
result.put(MdcVariables.httpHeader(MdcVariables.INVOCATION_ID), invocationId().toString());
}
return HashMap.ofAll(result);
}
@Value.Derived
default Map<String, String> asMap() {
java.util.Map<String, String> result = new java.util.HashMap<>();
if (requestId() != null) {
result.put(MdcVariables.REQUEST_ID, requestId().toString());
}
if (invocationId() != null) {
result.put(MdcVariables.INVOCATION_ID, invocationId().toString());
}
return global().asMap().merge(HashMap.ofAll(result));
}
default void withSlf4jMdc(Runnable runnable) {
withSlf4jMdc(true, runnable);
}
default void withSlf4jMdc(boolean loglevelEnabled, Runnable runnable) {
if (loglevelEnabled) {
final java.util.Map<String, String> ctxBefore = MDC.getCopyOfContextMap();
try {
MDC.setContextMap(asMap().toJavaMap());
runnable.run();
} finally {
if (ctxBefore == null) {
MDC.clear();
} else {
MDC.setContextMap(ctxBefore);
}
}
}
}
static ImmutableRequestDiagnosticContext create() {
return ImmutableRequestDiagnosticContext.builder()
.requestId(UUID.randomUUID())
.invocationId(UUID.randomUUID())
.build();
}
}
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