com.liferay.util.servlet.fileupload.LiferayFileItem.java Source code

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Here is the source code for com.liferay.util.servlet.fileupload.LiferayFileItem.java

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/**
 * Copyright (c) 2000-2005 Liferay, LLC. All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package com.liferay.util.servlet.fileupload;

import java.io.File;

import org.apache.commons.fileupload.disk.DiskFileItem;

/**
 * <a href="LiferayFileItem.java.html"><b><i>View Source</i></b></a>
 *
 * @author  Brian Wing Shun Chan
 * @author  Zongliang Li
 * @version $Revision: 1.2 $
 *
 */
public class LiferayFileItem extends DiskFileItem {

    public LiferayFileItem(String fieldName, String contentType, boolean isFormField, String fileName,
            int sizeThreshold, File repository) {

        super(fieldName, contentType, isFormField, fileName, sizeThreshold, repository);

        _fileName = fileName;
        _repository = repository;
    }

    public String getFileName() {
        if (_fileName == null) {
            return null;
        }

        int pos = _fileName.lastIndexOf("/");

        if (pos == -1) {
            pos = _fileName.lastIndexOf("\\");
        }

        if (pos == -1) {
            return _fileName;
        } else {
            return _fileName.substring(pos + 1, _fileName.length());
        }
    }

    public String getFullFileName() {
        return _fileName;
    }

    public String getFileNameExtension() {
        if (_fileName == null) {
            return null;
        }

        int pos = _fileName.lastIndexOf(".");

        if (pos != -1) {
            return _fileName.substring(pos + 1, _fileName.length());
        } else {
            return null;
        }
    }

    public String getString() {
        if (_encodedString == null) {
            return super.getString();
        } else {
            return _encodedString;
        }
    }

    public void setString(String encode) {
        try {
            _encodedString = getString(encode);
        } catch (Exception e) {
        }
    }

    protected File getTempFile() {
        String tempFileName = "upload_" + _getUniqueId();

        String extension = getFileNameExtension();

        if (extension != null) {
            tempFileName += "." + extension;
        }

        File tempFile = new File(_repository, tempFileName);

        tempFile.deleteOnExit();

        return tempFile;
    }

    private static String _getUniqueId() {
        int current;

        synchronized (LiferayFileItem.class) {
            current = _counter++;
        }

        String id = Integer.toString(current);

        if (current < 100000000) {
            id = ("00000000" + id).substring(id.length());
        }

        return id;
    }

    private static int _counter = 0;

    private String _fileName;
    private File _repository;
    private String _encodedString;

}