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Code Issues Releases Wiki Activity

Closes #113: Fire async events after request transaction commit

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This commit is contained in:
jendib
2016-08-26 21:22:27 +02:00
parent afc22a547e
commit cdd19e182b
8 changed files with 107 additions and 109 deletions
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29
docs-core/src/main/java/com/sismics/docs/core/service/IndexingService.java
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@@ -1,9 +1,11 @@
package com.sismics.docs.core.service;
import java.io.IOException;
import java.nio.file.Path;
import java.util.concurrent.TimeUnit;
import com.google.common.util.concurrent.AbstractScheduledService;
import com.sismics.docs.core.constant.Constants;
import com.sismics.docs.core.event.RebuildIndexAsyncEvent;
import com.sismics.docs.core.model.context.AppContext;
import com.sismics.docs.core.util.DirectoryUtil;
import com.sismics.docs.core.util.TransactionUtil;
import org.apache.lucene.index.CheckIndex;
import org.apache.lucene.index.CheckIndex.Status;
import org.apache.lucene.index.CheckIndex.Status.SegmentInfoStatus;
@@ -16,12 +18,9 @@ import org.apache.lucene.util.Version;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.util.concurrent.AbstractScheduledService;
import com.sismics.docs.core.constant.Constants;
import com.sismics.docs.core.event.RebuildIndexAsyncEvent;
import com.sismics.docs.core.model.context.AppContext;
import com.sismics.docs.core.util.DirectoryUtil;
import com.sismics.docs.core.util.TransactionUtil;
import java.io.IOException;
import java.nio.file.Path;
import java.util.concurrent.TimeUnit;
/**
* Indexing service.
@@ -129,16 +128,6 @@ public class IndexingService extends AbstractScheduledService {
return Scheduler.newFixedDelaySchedule(0, 1, TimeUnit.HOURS);
}
/**
* Destroy and rebuild Lucene index.
*
* @throws Exception
*/
public void rebuildIndex() throws Exception {
RebuildIndexAsyncEvent rebuildIndexAsyncEvent = new RebuildIndexAsyncEvent();
AppContext.getInstance().getAsyncEventBus().post(rebuildIndexAsyncEvent);
}
/**
* Getter of directory.
*

4
docs-core/src/main/java/com/sismics/docs/core/util/TransactionUtil.java
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@@ -22,12 +22,12 @@ public class TransactionUtil {
/**
* Encapsulate a process into a transactionnal context.
*
* @param runnable
* @param runnable Runnable
*/
public static void handle(Runnable runnable) {
EntityManager em = ThreadLocalContext.get().getEntityManager();
if (em != null) {
if (em != null && em.isOpen()) {
// We are already in a transactional context, nothing to do
runnable.run();
return;

29
docs-core/src/main/java/com/sismics/util/context/ThreadLocalContext.java
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@@ -1,6 +1,10 @@
package com.sismics.util.context;
import com.google.common.collect.Lists;
import com.sismics.docs.core.model.context.AppContext;
import javax.persistence.EntityManager;
import java.util.List;
/**
* Context associated to a user request, and stored in a ThreadLocal.
@@ -17,7 +21,12 @@ public class ThreadLocalContext {
* Entity manager.
*/
private EntityManager entityManager;
/**
* List of async events posted during this request.
*/
private List<Object> asyncEventList = Lists.newArrayList();
/**
* Private constructor.
*/
@@ -63,4 +72,22 @@ public class ThreadLocalContext {
public void setEntityManager(EntityManager entityManager) {
this.entityManager = entityManager;
}
/**
* Add an async event to the queue to be fired after the current request.
*
* @param asyncEvent Async event
*/
public void addAsyncEvent(Object asyncEvent) {
asyncEventList.add(asyncEvent);
}
/**
* Fire all pending async events.
*/
public void fireAllAsyncEvents() {
for (Object asyncEvent : asyncEventList) {
AppContext.getInstance().getAsyncEventBus().post(asyncEvent);
}
}
}