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/
BlobPersistService.java
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/
BlobPersistService.java
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/*
* Copyright 2013, Red Hat, Inc. and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.zanata.file;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.sql.Blob;
import javax.ws.rs.core.Response.Status;
import lombok.extern.slf4j.Slf4j;
import org.hibernate.LobHelper;
import org.hibernate.SQLQuery;
import org.hibernate.Session;
import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.AutoCreate;
import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Scope;
import org.zanata.dao.DocumentDAO;
import org.zanata.exception.ChunkUploadException;
import org.zanata.model.HDocument;
import org.zanata.model.HDocumentUploadPart;
import org.zanata.model.HRawDocument;
@Name("blobPersistService")
@Scope(ScopeType.STATELESS)
@AutoCreate
@Slf4j
public class BlobPersistService implements FilePersistService, UploadPartPersistService
{
@In
private Session session;
@In
private DocumentDAO documentDAO;
public HDocumentUploadPart newUploadPartFromStream(InputStream partContentStream, int contentLength)
{
HDocumentUploadPart newPart = new HDocumentUploadPart();
Blob partContent = session.getLobHelper().createBlob(partContentStream, contentLength);
newPart.setContent(partContent);
return newPart;
}
public void persistRawDocumentContentFromFile(HRawDocument rawDocument, File rawFile)
{
throw new RuntimeException("Migration of contents in progress, unable to persist file contents");
// oldPersistRawDocumentContentFromFile(rawDocument, rawFile);
}
// private void oldPersistRawDocumentContentFromFile(HRawDocument rawDocument, File rawFile)
// {
// FileInputStream tempFileStream;
// try
// {
// tempFileStream = new FileInputStream(rawFile);
// }
// catch (FileNotFoundException e)
// {
// // TODO damason: throw more appropriate exception and handle in caller
// log.error("Failed to open stream from temp source file", e);
// throw new ChunkUploadException(Status.INTERNAL_SERVER_ERROR,
// "Error saving uploaded document on server, download in original format may fail.\n",
// e);
// }
// LobHelper lobHelper = documentDAO.getLobHelper();
// Blob fileContents = lobHelper.createBlob(tempFileStream, (int) rawFile.length());
//
// rawDocument.setContent(fileContents);
//
// // FIXME temporary id assignment during blob migration - needs to be unique but only while
// // migration is in progress.
// String temporaryLocation = "document:" + rawDocument.getDocument().getId().toString();
// rawDocument.setContentLocation(temporaryLocation);
// }
@Override
public InputStream getRawDocumentContentAsStream(HRawDocument rawDoc)
{
String locator = rawDoc.getContentLocation();
return getRawDocumentFromTemporaryBlobTable(locator);
}
private InputStream getRawDocumentFromTemporaryBlobTable(String locator)
{
String queryString = "SELECT content" +
" FROM HRawDocumentContent" +
" WHERE contentLocation = '" + locator + "';";
SQLQuery query = session.createSQLQuery(queryString);
Object result = query.uniqueResult();
if (result != null)
{
byte[] content = (byte[]) result;
return new ByteArrayInputStream(content);
}
throw new RawDocumentContentAccessException(
"No raw document content for locator \"" + locator + "\"");
}
@Override
public boolean hasPersistedDocument(GlobalDocumentId id)
{
HDocument doc = documentDAO.getByGlobalId(id);
return doc.getRawDocument() != null;
}
}