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Liferay Change Tracking Service
/**
* SPDX-FileCopyrightText: (c) 2000 Liferay, Inc. https://liferay.com
* SPDX-License-Identifier: LGPL-2.1-or-later OR LicenseRef-Liferay-DXP-EULA-2.0.0-2023-06
*/
package com.liferay.change.tracking.internal.aop;
import com.liferay.petra.lang.SafeCloseable;
import com.liferay.portal.kernel.aop.AopMethodInvocation;
import com.liferay.portal.kernel.aop.ChainableMethodAdvice;
import com.liferay.portal.kernel.change.tracking.CTAware;
import com.liferay.portal.kernel.change.tracking.CTCollectionThreadLocal;
import com.liferay.portal.kernel.change.tracking.CTTransactionException;
import com.liferay.portal.kernel.transaction.Propagation;
import com.liferay.portal.kernel.transaction.Transactional;
import com.liferay.portal.spring.transaction.TransactionExecutorThreadLocal;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.Map;
import org.osgi.service.component.annotations.Component;
/**
* @author Preston Crary
*/
@Component(service = ChainableMethodAdvice.class)
public class CTTransactionAdvice extends ChainableMethodAdvice {
@Override
public Object createMethodContext(
Class> targetClass, Method method,
Map, Annotation> annotations) {
Transactional transactional = (Transactional)annotations.get(
Transactional.class);
if ((transactional == null) || !transactional.enabled()) {
return null;
}
CTAware ctAware = (CTAware)annotations.get(CTAware.class);
if (ctAware != null) {
if (ctAware.onProduction()) {
return CTMode.REQUIRES_NEW;
}
return null;
}
if (transactional.readOnly()) {
return CTMode.READ_ONLY;
}
if (transactional.propagation() == Propagation.REQUIRES_NEW) {
return CTMode.REQUIRES_NEW;
}
return CTMode.STRICT;
}
@Override
public Object invoke(
AopMethodInvocation aopMethodInvocation, Object[] arguments)
throws Throwable {
if (CTCollectionThreadLocal.isProductionMode()) {
return aopMethodInvocation.proceed(arguments);
}
CTMode ctMode = aopMethodInvocation.getAdviceMethodContext();
if ((ctMode == CTMode.REQUIRES_NEW) ||
(TransactionExecutorThreadLocal.getCurrentTransactionExecutor() ==
null)) {
try (SafeCloseable safeCloseable =
CTCollectionThreadLocal.
setProductionModeWithSafeCloseable()) {
return aopMethodInvocation.proceed(arguments);
}
}
else if (ctMode == CTMode.READ_ONLY) {
return aopMethodInvocation.proceed(arguments);
}
throw new CTTransactionException(
"CT transaction validation failure. Nested operation using " +
aopMethodInvocation.getThis() +
" can only be performed in production mode.");
}
private enum CTMode {
READ_ONLY, REQUIRES_NEW, STRICT
}
}
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