it.drwolf.ridire.servlet.TmpResourcesServlet.java Source code

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Here is the source code for it.drwolf.ridire.servlet.TmpResourcesServlet.java

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/*******************************************************************************
 * Copyright 2013 Universit degli Studi di Firenze
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
package it.drwolf.ridire.servlet;

import java.io.File;
import java.io.IOException;

import javax.faces.context.ExternalContext;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.io.FileUtils;
import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Name;

@Name("tmpResource")
public class TmpResourcesServlet {
    @In(value = "#{facesContext.externalContext}")
    public ExternalContext extCtx;

    public void getTmpFile(String filename) {
        HttpServletResponse response = (HttpServletResponse) this.extCtx.getResponse();
        response.setContentType("text/html");
        response.setCharacterEncoding("UTF-8");
        response.setHeader("Expires", "0");
        response.setHeader("Cache-Control", "must-revalidate, post-check=0, pre-check=0");
        response.setHeader("Pragma", "public");
        try {
            String ret = FileUtils.readFileToString(
                    new File(
                            System.getProperty("java.io.tmpdir") + System.getProperty("file.separator") + filename),
                    "UTF-8");
            response.getOutputStream().print(ret);
            response.getOutputStream().flush();
            // FacesContext.getCurrentInstance().responseComplete();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

}