/*
* Copyright (c) 2003-2011, Simon Brown
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* - Neither the name of Pebble nor the names of its contributors may
* be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
package net.sourceforge.pebble.web.view;
import net.sourceforge.pebble.util.FileUtils;
import net.sourceforge.pebble.domain.AbstractBlog;
import net.sourceforge.pebble.domain.Blog;
import net.sourceforge.pebble.domain.FileMetaData;
import net.sourceforge.pebble.Constants;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.logging.Log;
/**
* Represents a binary view component and prepares the model for display.
*
* @author Simon Brown
*/
public class FileView extends BinaryView {
/** the log used by this class */
private static Log log = LogFactory.getLog(FileView.class);
private File file;
public FileView(File file) {
this.file = file;
}
/**
* Gets the title of this view.
*
* @return the title as a String
*/
public String getContentType() {
String mimeType = null;
ServletContext servletContext = getServletContext();
if (servletContext != null) {
mimeType = servletContext.getMimeType(file.getName());
}
if (mimeType == null) {
return FileUtils.getContentType(file.getName());
}
return mimeType;
}
public long getContentLength() {
return file.length();
}
/**
* Dispatches this view.
*
* @param request the HttpServletRequest instance
* @param response the HttpServletResponse instance
* @param context
*/
public void dispatch(HttpServletRequest request, HttpServletResponse response, ServletContext context) throws ServletException {
response.setContentLength((int)getContentLength());
try {
BufferedInputStream in = new BufferedInputStream(new FileInputStream(file));
BufferedOutputStream out = new BufferedOutputStream(response.getOutputStream());
byte[] buf = new byte[1024];
int len = in.read(buf);
while (len > 0) {
out.write(buf, 0, len);
len = in.read(buf);
}
in.close();
out.close();
} catch (IOException ioe) {
log.warn(ioe);
} finally {
AbstractBlog blog = (AbstractBlog)getModel().get(Constants.BLOG_KEY);
blog.log(request, HttpServletResponse.SC_OK);
}
}
}