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OCR all files in database asynchronously

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This commit is contained in:
jendib 2013-08-17 16:54:53 +02:00
parent 234eaf047e
commit e2bd85da5f
9 changed files with 113 additions and 33 deletions
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16
docs-core/src/main/java/com/sismics/docs/core/event/OcrFileAsyncEvent.java Normal file
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@ -0,0 +1,16 @@
package com.sismics.docs.core.event;
import com.google.common.base.Objects;
/**
* OCR all files in database event.
*
* @author bgamard
*/
public class OcrFileAsyncEvent {
@Override
public String toString() {
return Objects.toStringHelper(this)
.toString();
}
}

25
docs-core/src/main/java/com/sismics/docs/core/listener/async/FileCreatedAsyncListener.java
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@ -6,10 +6,12 @@ import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.eventbus.Subscribe;
import com.sismics.docs.core.dao.jpa.FileDao;
import com.sismics.docs.core.dao.lucene.LuceneDao;
import com.sismics.docs.core.event.FileCreatedAsyncEvent;
import com.sismics.docs.core.model.jpa.File;
import com.sismics.docs.core.util.FileUtil;
import com.sismics.util.ImageUtil;
import com.sismics.docs.core.util.TransactionUtil;
/**
* Listener on file created.
@ -34,12 +36,21 @@ public class FileCreatedAsyncListener {
log.info("File created event: " + fileCreatedAsyncEvent.toString());
}
// OCR the file if it is an image
if (ImageUtil.isImage(fileCreatedAsyncEvent.getFile().getMimeType())) {
long startTime = System.currentTimeMillis();
FileUtil.ocrFile(fileCreatedAsyncEvent.getDocument(), fileCreatedAsyncEvent.getFile());
log.info(MessageFormat.format("File OCR-ized in {0}ms", System.currentTimeMillis() - startTime));
}
// OCR the file
final File file = fileCreatedAsyncEvent.getFile();
long startTime = System.currentTimeMillis();
final String content = FileUtil.ocrFile(fileCreatedAsyncEvent.getDocument(), file);
log.info(MessageFormat.format("File OCR-ized in {0}ms", System.currentTimeMillis() - startTime));
// Store the OCR-ization result in the database
TransactionUtil.handle(new Runnable() {
@Override
public void run() {
FileDao fileDao = new FileDao();
file.setContent(content);
fileDao.updateContent(file);
}
});
// Update Lucene index
LuceneDao luceneDao = new LuceneDao();

58
docs-core/src/main/java/com/sismics/docs/core/listener/async/OcrFileAsyncListener.java Normal file
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@ -0,0 +1,58 @@
package com.sismics.docs.core.listener.async;
import java.text.MessageFormat;
import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.eventbus.Subscribe;
import com.sismics.docs.core.dao.jpa.DocumentDao;
import com.sismics.docs.core.dao.jpa.FileDao;
import com.sismics.docs.core.event.OcrFileAsyncEvent;
import com.sismics.docs.core.model.jpa.Document;
import com.sismics.docs.core.model.jpa.File;
import com.sismics.docs.core.util.FileUtil;
import com.sismics.docs.core.util.TransactionUtil;
/**
* Listener on OCR all files in database.
*
* @author bgamard
*/
public class OcrFileAsyncListener {
/**
* Logger.
*/
private static final Logger log = LoggerFactory.getLogger(OcrFileAsyncListener.class);
/**
* OCR all files.
*
* @param ocrFileAsyncEvent OCR all files in database event
* @throws Exception
*/
@Subscribe
public void on(final OcrFileAsyncEvent ocrFileAsyncEvent) throws Exception {
if (log.isInfoEnabled()) {
log.info("OCR all files in database event: " + ocrFileAsyncEvent.toString());
}
TransactionUtil.handle(new Runnable() {
@Override
public void run() {
FileDao fileDao = new FileDao();
DocumentDao documentDao = new DocumentDao();
List<File> fileList = fileDao.findAll();
for (File file : fileList) {
long startTime = System.currentTimeMillis();
Document document = documentDao.getById(file.getDocumentId());
String content = FileUtil.ocrFile(document, file);
file.setContent(content);
TransactionUtil.commit();
log.info(MessageFormat.format("File OCR-ized in {0}ms", System.currentTimeMillis() - startTime));
}
}
});
}
}

3
docs-core/src/main/java/com/sismics/docs/core/event/RebuildIndexAsyncListener.java → docs-core/src/main/java/com/sismics/docs/core/listener/async/RebuildIndexAsyncListener.java
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@ -1,4 +1,4 @@
package com.sismics.docs.core.event;
package com.sismics.docs.core.listener.async;
import java.util.List;
@ -9,6 +9,7 @@ import com.google.common.eventbus.Subscribe;
import com.sismics.docs.core.dao.jpa.DocumentDao;
import com.sismics.docs.core.dao.jpa.FileDao;
import com.sismics.docs.core.dao.lucene.LuceneDao;
import com.sismics.docs.core.event.RebuildIndexAsyncEvent;
import com.sismics.docs.core.model.jpa.Document;
import com.sismics.docs.core.model.jpa.File;
import com.sismics.docs.core.util.TransactionUtil;

4
docs-core/src/main/java/com/sismics/docs/core/model/context/AppContext.java
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@ -13,12 +13,13 @@ import com.google.common.eventbus.AsyncEventBus;
import com.google.common.eventbus.EventBus;
import com.sismics.docs.core.constant.ConfigType;
import com.sismics.docs.core.dao.jpa.ConfigDao;
import com.sismics.docs.core.event.RebuildIndexAsyncListener;
import com.sismics.docs.core.event.OcrFileAsyncEvent;
import com.sismics.docs.core.listener.async.DocumentCreatedAsyncListener;
import com.sismics.docs.core.listener.async.DocumentDeletedAsyncListener;
import com.sismics.docs.core.listener.async.DocumentUpdatedAsyncListener;
import com.sismics.docs.core.listener.async.FileCreatedAsyncListener;
import com.sismics.docs.core.listener.async.FileDeletedAsyncListener;
import com.sismics.docs.core.listener.async.RebuildIndexAsyncListener;
import com.sismics.docs.core.listener.sync.DeadEventListener;
import com.sismics.docs.core.model.jpa.Config;
import com.sismics.docs.core.service.IndexingService;
@ -90,6 +91,7 @@ public class AppContext {
asyncEventBus.register(new DocumentUpdatedAsyncListener());
asyncEventBus.register(new DocumentDeletedAsyncListener());
asyncEventBus.register(new RebuildIndexAsyncListener());
asyncEventBus.register(new OcrFileAsyncEvent());
}
/**

21
docs-core/src/main/java/com/sismics/docs/core/util/FileUtil.java
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@ -16,9 +16,9 @@ import org.imgscalr.Scalr.Mode;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.sismics.docs.core.dao.jpa.FileDao;
import com.sismics.docs.core.model.jpa.Document;
import com.sismics.docs.core.model.jpa.File;
import com.sismics.util.ImageUtil;
/**
* File entity utilities.
@ -36,8 +36,14 @@ public class FileUtil {
*
* @param document Document linked to the file
* @param file File to OCR
* @return OCR-ized content
*/
public static void ocrFile(Document document, final File file) {
public static String ocrFile(Document document, final File file) {
if (!ImageUtil.isImage(file.getMimeType())) {
// The file is not OCR-izable
return null;
}
Tesseract instance = Tesseract.getInstance();
java.io.File storedfile = Paths.get(DirectoryUtil.getStorageDirectory().getPath(), file.getId()).toFile();
String content = null;
@ -63,15 +69,6 @@ public class FileUtil {
log.error("Error while OCR-izing the file " + storedfile, e);
}
file.setContent(content);
// Store the OCR-ization result in the database
TransactionUtil.handle(new Runnable() {
@Override
public void run() {
FileDao fileDao = new FileDao();
fileDao.updateContent(file);
}
});
return content;
}
}

2
docs-parent/TODO
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@ -0,0 +1,2 @@
- New image rescale between thumbnail and original (client/server)
- Batch to regenerate all thumbnails (server)

15
docs-web/src/main/java/com/sismics/docs/rest/resource/AppResource.java
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@ -19,14 +19,11 @@ import org.codehaus.jettison.json.JSONException;
import org.codehaus.jettison.json.JSONObject;
import com.sismics.docs.core.dao.jpa.DocumentDao;
import com.sismics.docs.core.dao.jpa.FileDao;
import com.sismics.docs.core.dao.jpa.criteria.DocumentCriteria;
import com.sismics.docs.core.dao.jpa.dto.DocumentDto;
import com.sismics.docs.core.event.OcrFileAsyncEvent;
import com.sismics.docs.core.model.context.AppContext;
import com.sismics.docs.core.model.jpa.Document;
import com.sismics.docs.core.model.jpa.File;
import com.sismics.docs.core.util.ConfigUtil;
import com.sismics.docs.core.util.FileUtil;
import com.sismics.docs.core.util.jpa.PaginatedList;
import com.sismics.docs.core.util.jpa.PaginatedLists;
import com.sismics.docs.core.util.jpa.SortCriteria;
@ -157,13 +154,9 @@ public class AppResource extends BaseResource {
}
checkBaseFunction(BaseFunction.ADMIN);
FileDao fileDao = new FileDao();
DocumentDao documentDao = new DocumentDao();
List<File> fileList = fileDao.findAll();
for (File file : fileList) {
Document document = documentDao.getById(file.getDocumentId());
FileUtil.ocrFile(document, file);
}
// Raise a OCR file event
OcrFileAsyncEvent ocrFileAsyncEvent = new OcrFileAsyncEvent();
AppContext.getInstance().getAsyncEventBus().post(ocrFileAsyncEvent);
JSONObject response = new JSONObject();
response.put("status", "ok");

2
docs-web/src/test/resources/log4j.properties
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@ -6,4 +6,4 @@ log4j.appender.MEMORY=com.sismics.util.log4j.MemoryAppender
log4j.appender.MEMORY.size=1000
log4j.logger.com.sismics=DEBUG
log4j.logger.org.hibernate=ERROR
log4j.logger.org.hibernate=INFO