org.mitre.mrald.util.FileUtils.java Source code

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Here is the source code for org.mitre.mrald.util.FileUtils.java

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/*
 *  Copyright 2008 The MITRE Corporation (http://www.mitre.org/). All Rights Reserved.
 *
 * 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 org.mitre.mrald.util;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import org.apache.commons.fileupload.*;
import java.util.Iterator;
import java.util.List;
import javax.servlet.http.HttpServletRequest;

/**
 *  Description of the Class This is dependent on Oracle 8i.
 *
 *@author     jchoyt
 *@created    August 30, 2001
 */
public class FileUtils {

    /**
     *  Constructor for the FormUtils object
     *
     *@since
     */
    public FileUtils() {
    }

    /**
     *  Description of the Method
     *
     *@param  sourceFile                 Description of the Parameter
     *@param  destFile                   Description of the Parameter
     *@exception  FileNotFoundException  Description of the Exception
     *@exception  IOException            Description of the Exception
     */
    public void copyFile(File sourceFile, File destFile) throws FileNotFoundException, IOException {
        byte[] buffer = new byte[4096];
        FileInputStream in = new FileInputStream(sourceFile);
        FileOutputStream out = new FileOutputStream(destFile);
        int len;
        while ((len = in.read(buffer)) != -1) {
            out.write(buffer, 0, len);
        }
        out.flush();
        out.close();
        in.close();
        in = null;
        out = null;
    }

    /**
     *  This method prepares the output file for the HTML format data
     *
     *@param  sourceFilename      Description of the Parameter
     *@param  backupFilename      Description of the Parameter
     *@exception  IOException     Description of the Exception
     *@since
     */
    public void backupFile(String sourceFilename, String backupFilename) throws IOException {

        String backupDir = backupFilename.substring(0, backupFilename.lastIndexOf("/"));

        if (!new File(backupDir).exists()) {
            boolean created = new File(backupDir).mkdirs();
            if (!created) {
                throw new IOException("Couldn't create the directory \"" + backupDir
                        + "\".  Check your file system, though, some intermediate directories may have been created");
            }
        }

        File backupFile = new File(backupFilename);
        File sourcefile = new File(sourceFilename);

        copyFile(sourcefile, backupFile);

    }

    /**
     *  Stores the image to disk. Note this will handle only one file at a time. If
     *  you want to upload more than one image, you'll have to rework this. The
     *  first non-form item encountered (a file field) is the one taken.
     *
     *@param  req                      Request that contains the upload
     *@param  user                     Description of the Parameter
     *@return                          Description of the Return Value
     *@exception  JspException         Description of the Exception
     *@exception  FileUploadException  Description of the Exception
     *@exception  IOException          Description of the Exception
     *@exception  Exception            Description of the Exception
     *@since
     */
    @Deprecated
    public void uploadFile(HttpServletRequest req, User user)
            throws MraldException, FileUploadException, IOException, Exception {
        if (!FileUpload.isMultipartContent(req)) {
            throw new MraldException("The supplied request did not come from a multipart request - "
                    + "there can't be any file buried in here.");
        }
        /*
         *  parse the request
         */
        DiskFileUpload upload = new DiskFileUpload();
        List items = upload.parseRequest(req);
        Iterator iter = items.iterator();

        String fileName = "";

        while (iter.hasNext()) {

            FileItem fileSetItem = (FileItem) iter.next();
            String itemName = fileSetItem.getFieldName();

            if (itemName.startsWith("fileName")) {
                fileName = fileSetItem.get().toString();

            }
        }

        items.iterator();
        while (iter.hasNext()) {
            FileItem fileSetItem = (FileItem) iter.next();
            String itemName = fileSetItem.getFieldName();

            if (itemName.startsWith("settings")) {

                String dirFileName = Config.getProperty("BasePath");

                File fileFinalLocation = new File(dirFileName + "/" + fileName);
                fileSetItem.write(fileFinalLocation);
            }
        }
    }
}