org.opencms.db.oracle.CmsVfsDriver Maven / Gradle / Ivy
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/*
* This library is part of OpenCms -
* the Open Source Content Management System
*
* Copyright (c) Alkacon Software GmbH & Co. KG (http://www.alkacon.com)
*
* This library 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 library 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.
*
* For further information about Alkacon Software GmbH & Co. KG, please see the
* company website: http://www.alkacon.com
*
* For further information about OpenCms, please see the
* project website: http://www.opencms.org
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.opencms.db.oracle;
import org.opencms.db.CmsDbContext;
import org.opencms.db.CmsDbEntryNotFoundException;
import org.opencms.db.CmsDbIoException;
import org.opencms.db.CmsDbSqlException;
import org.opencms.db.generic.CmsSqlManager;
import org.opencms.db.generic.Messages;
import org.opencms.file.CmsDataAccessException;
import org.opencms.file.CmsProject;
import org.opencms.main.OpenCms;
import org.opencms.util.CmsUUID;
import java.io.IOException;
import java.io.OutputStream;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import org.apache.commons.dbcp.DelegatingResultSet;
/**
* Oracle implementation of the VFS driver methods.
*
* @since 6.0.0
*/
public class CmsVfsDriver extends org.opencms.db.generic.CmsVfsDriver {
/**
* @see org.opencms.db.I_CmsVfsDriver#createContent(CmsDbContext, CmsUUID, CmsUUID, byte[])
*/
@Override
public void createContent(CmsDbContext dbc, CmsUUID projectId, CmsUUID resourceId, byte[] content)
throws CmsDataAccessException {
Connection conn = null;
PreparedStatement stmt = null;
try {
conn = m_sqlManager.getConnection(dbc);
stmt = m_sqlManager.getPreparedStatement(conn, projectId, "C_ORACLE_OFFLINE_CONTENTS_WRITE");
// first insert new file without file_content, then update the file_content
// these two steps are necessary because of using BLOBs in the Oracle DB
stmt.setString(1, resourceId.toString());
stmt.executeUpdate();
} catch (SQLException e) {
throw new CmsDbSqlException(
Messages.get().container(Messages.ERR_GENERIC_SQL_1, CmsDbSqlException.getErrorQuery(stmt)),
e);
} finally {
m_sqlManager.closeAll(dbc, conn, stmt, null);
}
// now update the file content
internalWriteContent(dbc, projectId, resourceId, content, -1);
}
/**
* @see org.opencms.db.generic.CmsVfsDriver#createOnlineContent(CmsDbContext, CmsUUID, byte[], int, boolean, boolean)
*/
@Override
public void createOnlineContent(
CmsDbContext dbc,
CmsUUID resourceId,
byte[] contents,
int publishTag,
boolean keepOnline,
boolean needToUpdateContent) throws CmsDataAccessException {
Connection conn = null;
PreparedStatement stmt = null;
try {
conn = m_sqlManager.getConnection(dbc);
boolean dbcHasProjectId = (dbc.getProjectId() != null) && !dbc.getProjectId().isNullUUID();
if (needToUpdateContent || dbcHasProjectId) {
if (dbcHasProjectId || !OpenCms.getSystemInfo().isHistoryEnabled()) {
// remove the online content for this resource id
stmt = m_sqlManager.getPreparedStatement(conn, "C_ONLINE_CONTENTS_DELETE");
stmt.setString(1, resourceId.toString());
stmt.executeUpdate();
m_sqlManager.closeAll(dbc, null, stmt, null);
} else {
// put the online content in the history
stmt = m_sqlManager.getPreparedStatement(conn, "C_ONLINE_CONTENTS_HISTORY");
stmt.setString(1, resourceId.toString());
stmt.executeUpdate();
m_sqlManager.closeAll(dbc, null, stmt, null);
}
// create new empty online content entry
stmt = m_sqlManager.getPreparedStatement(conn, "C_ORACLE_ONLINE_CONTENTS_WRITE");
stmt.setString(1, resourceId.toString());
stmt.setInt(2, publishTag);
stmt.setInt(3, publishTag);
stmt.setInt(4, keepOnline ? 1 : 0);
stmt.executeUpdate();
m_sqlManager.closeAll(dbc, conn, stmt, null);
// now update the file content
internalWriteContent(dbc, CmsProject.ONLINE_PROJECT_ID, resourceId, contents, publishTag);
} else {
// update old content entry
stmt = m_sqlManager.getPreparedStatement(conn, "C_HISTORY_CONTENTS_UPDATE");
stmt.setInt(1, publishTag);
stmt.setString(2, resourceId.toString());
stmt.executeUpdate();
m_sqlManager.closeAll(dbc, null, stmt, null);
if (!keepOnline) {
// put the online content in the history
stmt = m_sqlManager.getPreparedStatement(conn, "C_ONLINE_CONTENTS_HISTORY");
stmt.setString(1, resourceId.toString());
stmt.executeUpdate();
m_sqlManager.closeAll(dbc, null, stmt, null);
}
}
} catch (SQLException e) {
throw new CmsDbSqlException(
Messages.get().container(Messages.ERR_GENERIC_SQL_1, CmsDbSqlException.getErrorQuery(stmt)),
e);
} finally {
m_sqlManager.closeAll(dbc, conn, stmt, null);
}
}
/**
* @see org.opencms.db.I_CmsVfsDriver#initSqlManager(String)
*/
@Override
public org.opencms.db.generic.CmsSqlManager initSqlManager(String classname) {
return CmsSqlManager.getInstance(classname);
}
/**
* @see org.opencms.db.I_CmsVfsDriver#writeContent(CmsDbContext, CmsUUID, byte[])
*/
@Override
public void writeContent(CmsDbContext dbc, CmsUUID resourceId, byte[] content) throws CmsDataAccessException {
internalWriteContent(dbc, dbc.currentProject().getUuid(), resourceId, content, -1);
}
/**
* Writes the resource content with the specified resource id.
*
* @param dbc the current database context
* @param projectId the id of the current project
* @param resourceId the id of the resource used to identify the content to update
* @param contents the new content of the file
* @param publishTag the publish tag if to be written to the online content
*
* @throws CmsDataAccessException if something goes wrong
*/
protected void internalWriteContent(
CmsDbContext dbc,
CmsUUID projectId,
CmsUUID resourceId,
byte[] contents,
int publishTag) throws CmsDataAccessException {
PreparedStatement stmt = null;
PreparedStatement commit = null;
Connection conn = null;
ResultSet res = null;
boolean wasInTransaction = false;
try {
conn = m_sqlManager.getConnection(dbc);
if (projectId.equals(CmsProject.ONLINE_PROJECT_ID)) {
stmt = m_sqlManager.getPreparedStatement(conn, projectId, "C_ORACLE_ONLINE_CONTENTS_UPDATECONTENT");
} else {
stmt = m_sqlManager.getPreparedStatement(conn, projectId, "C_ORACLE_OFFLINE_CONTENTS_UPDATECONTENT");
}
wasInTransaction = !conn.getAutoCommit();
if (!wasInTransaction) {
conn.setAutoCommit(false);
}
// update the file content in the contents table
stmt.setString(1, resourceId.toString());
if (projectId.equals(CmsProject.ONLINE_PROJECT_ID)) {
stmt.setInt(2, publishTag);
stmt.setInt(3, publishTag);
}
res = ((DelegatingResultSet)stmt.executeQuery()).getInnermostDelegate();
if (!res.next()) {
throw new CmsDbEntryNotFoundException(
Messages.get().container(Messages.LOG_READING_RESOURCE_1, resourceId));
}
// write file content
OutputStream output = CmsUserDriver.getOutputStreamFromBlob(res, "FILE_CONTENT");
output.write(contents, 0, contents.length);
output.close();
if (!wasInTransaction) {
commit = m_sqlManager.getPreparedStatement(conn, "C_COMMIT");
commit.execute();
m_sqlManager.closeAll(dbc, null, commit, null);
}
m_sqlManager.closeAll(dbc, null, stmt, res);
// this is needed so the finally block works correctly
commit = null;
stmt = null;
res = null;
if (!wasInTransaction) {
conn.setAutoCommit(true);
}
} catch (IOException e) {
throw new CmsDbIoException(
Messages.get().container(Messages.ERR_WRITING_TO_OUTPUT_STREAM_1, resourceId),
e);
} catch (SQLException e) {
throw new CmsDbSqlException(
org.opencms.db.generic.Messages.get().container(
org.opencms.db.generic.Messages.ERR_GENERIC_SQL_1,
CmsDbSqlException.getErrorQuery(stmt)),
e);
} finally {
org.opencms.db.oracle.CmsSqlManager.closeAllInTransaction(
m_sqlManager,
dbc,
conn,
stmt,
res,
commit,
wasInTransaction);
}
}
}