HttpServletRequestHandler.java

/*
 * 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 2005 - 2009 Pentaho Corporation.  All rights reserved.
 *
 *
 * @created Jun 18, 2005 
 * @author James Dixon
 * 
 */

package org.pentaho.platform.web.servlet;

import java.io.IOException;
import java.io.OutputStream;
import java.util.Set;

import javax.servlet.http.HttpServletRequest;

import org.pentaho.platform.api.engine.IOutputHandler;
import org.pentaho.platform.api.engine.IParameterProvider;
import org.pentaho.platform.api.engine.IPentahoSession;
import org.pentaho.platform.api.engine.IPentahoUrlFactory;
import org.pentaho.platform.api.repository.IContentItem;
import org.pentaho.platform.api.ui.IUIComponent;
import org.pentaho.platform.engine.services.BaseRequestHandler;
import org.pentaho.platform.web.http.request.HttpRequestParameterProvider;
import org.pentaho.platform.web.http.session.HttpSessionParameterProvider;

public class HttpServletRequestHandler extends BaseRequestHandler {

  private HttpServletRequest request;

  public HttpServletRequestHandler(final IPentahoSession session, final String instanceId, final HttpServletRequest request,
      final IOutputHandler outputHandler, final IPentahoUrlFactory urlFactory) {
    super(session, instanceId, outputHandler, null, urlFactory);
    HttpSessionParameterProvider sessionParameters = new HttpSessionParameterProvider(session);
    setParameterProvider(IParameterProvider.SCOPE_SESSION, sessionParameters);
    setRequest(request);
  }

  public void handleUIRequest(final IUIComponent component, final String contentType) throws IOException {
    IContentItem contentItem = getOutputHandler().getOutputContentItem(IOutputHandler.RESPONSE, IOutputHandler.CONTENT,
        getSolutionName(), getInstanceId(), null);
    OutputStream outputStream = contentItem.getOutputStream(this.getActionName());
    component.handleRequest(outputStream, this, contentType, getParameterProviders());

  }

  public void setRequest(final HttpServletRequest request) {
    this.request = request;
    IParameterProvider requestParameters = new HttpRequestParameterProvider(request);
    setParameterProvider(HttpRequestParameterProvider.SCOPE_REQUEST, requestParameters);

  }

  public String getStringParameter(final String name) {
    return request.getParameter(name);
  }

  public Set getParameterNames() {
    return request.getParameterMap().keySet();
  }

}