/*!
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program 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.
*
* Copyright (c) 2002-2013 Pentaho Corporation.. All rights reserved.
*/
package org.pentaho.platform.web.servlet;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.pentaho.platform.api.engine.IMessageFormatter;
import org.pentaho.platform.api.engine.IPentahoSession;
import org.pentaho.platform.api.ui.IUIComponent;
import org.pentaho.platform.engine.core.system.PentahoSystem;
import org.pentaho.platform.util.messages.LocaleHelper;
import org.pentaho.platform.util.web.SimpleUrlFactory;
import org.pentaho.platform.web.http.HttpOutputHandler;
import org.pentaho.platform.web.servlet.messages.Messages;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
import java.io.OutputStream;
/**
* @author James Dixon
*
* TODO To change the template for this generated type comment go to Window - Preferences - Java - Code Style -
* Code Templates
*/
public class UIServlet extends ServletBase {
/**
*
*/
private static final long serialVersionUID = 7018489258697145705L;
private static final Log logger = LogFactory.getLog( UIServlet.class );
@Override
public Log getLogger() {
return UIServlet.logger;
}
@Override
protected void doGet( final HttpServletRequest request, final HttpServletResponse response ) throws ServletException,
IOException {
PentahoSystem.systemEntryPoint();
try {
OutputStream outputStream = response.getOutputStream();
String path = request.getContextPath();
IPentahoSession userSession = getPentahoSession( request );
HttpSession session = request.getSession();
String type = request.getParameter( "type" ); //$NON-NLS-1$
if ( type == null ) {
type = "text/html"; //$NON-NLS-1$
}
// find out which component is going to fulfill this request
String componentName = request.getParameter( "component" ); //$NON-NLS-1$
if ( componentName == null ) {
response.setContentType( "text/html" ); //$NON-NLS-1$
StringBuffer buffer = new StringBuffer();
PentahoSystem
.get( IMessageFormatter.class, userSession )
.formatErrorMessage(
"text/html", Messages.getInstance().getString( "UIServlet.ACTION_FAILED" ),
Messages.getInstance().getErrorString( "UIServlet.ERROR_0001_COMPONENT_NOT_SPECIFIED" ), buffer ); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
outputStream.write( buffer.toString().getBytes( LocaleHelper.getSystemEncoding() ) );
return;
}
response.setCharacterEncoding( LocaleHelper.getSystemEncoding() );
// TODO switch this to the interface once stable
IUIComponent component = (IUIComponent) session.getAttribute( componentName );
if ( component == null ) {
component = getComponent( componentName );
if ( component == null ) {
response.setContentType( "text/html" ); //$NON-NLS-1$
StringBuffer buffer = new StringBuffer();
PentahoSystem
.get( IMessageFormatter.class, userSession )
.formatErrorMessage(
"text/html", Messages.getInstance().getString( "UIServlet.ACTION_FAILED" ),
Messages.getInstance().getErrorString( "UIServlet.ERROR_0002_COMPONENT_INVALID" ), buffer ); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
outputStream.write( buffer.toString().getBytes( LocaleHelper.getSystemEncoding() ) );
return;
}
session.setAttribute( componentName, component );
}
if ( !component.validate() ) {
// TODO need an error here
return;
}
String baseUrl =
request.getScheme()
+ "://" + request.getServerName() + ":" + request.getServerPort() + path + "/content?type=" + type + "&component=" + componentName + "&"; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$
response.setContentType( type );
HttpOutputHandler outputHandler = new HttpOutputHandler( response, outputStream, true );
SimpleUrlFactory urlFactory = new SimpleUrlFactory( baseUrl );
HttpServletRequestHandler requestHandler =
new HttpServletRequestHandler( userSession, null, request, outputHandler, urlFactory );
requestHandler.handleUIRequest( component, type );
} finally {
PentahoSystem.systemExitPoint();
}
}
private IUIComponent getComponent( final String componentName ) {
return (IUIComponent) PentahoSystem.createObject( componentName, this );
}
@Override
protected void doPost( final HttpServletRequest request, final HttpServletResponse response )
throws ServletException, IOException {
doGet( request, response );
}
}