org.mhi.imageutilities.FileHandler.java Source code

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Here is the source code for org.mhi.imageutilities.FileHandler.java

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/*
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package org.mhi.imageutilities;

import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.nio.ByteBuffer;
import java.util.Iterator;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;

/**
 *
 * @author MaHi
 */
public class FileHandler {

    private static ByteBuffer buffer = ByteBuffer.allocate(Long.BYTES);

    DiskFileItemFactory factory = new DiskFileItemFactory();
    ServletFileUpload upload = new ServletFileUpload(factory);
    HttpServletRequest request = null;
    List<FileItem> items = null;

    String fileName = null;
    String ContentType = null;
    long fileSize = 0;

    public FileHandler(HttpServletRequest req) throws FileUploadException {
        this.request = req;
        items = upload.parseRequest(request);
    }

    public boolean isMultipart() {
        boolean result = ServletFileUpload.isMultipartContent(request);
        return result;
    }

    public String getParameter(String field_name) throws UnsupportedEncodingException {
        String result = null;
        Iterator<FileItem> iter = items.iterator();
        while (iter.hasNext()) {
            FileItem item = iter.next();
            if (item.getFieldName().equals(field_name)) {
                result = new String(item.get(), "UTF-8");

            }
        }
        return result;
    }

    public InputStream getFile(String file_field) throws IOException {
        InputStream blob = null;
        Iterator<FileItem> iter = items.iterator();
        while (iter.hasNext()) {
            FileItem item = iter.next();
            if (item.getFieldName().equals(file_field)) {
                blob = item.getInputStream();
                setContentType(item.getContentType());
                setFileSize(item.getSize());
                setFileName(item.getName());

            }
        }
        return blob;
    }

    public String getContentType() {
        return ContentType;
    }

    public String getFileName() {
        return fileName;
    }

    public long getFileSize() {
        return fileSize;
    }

    public void setFileName(String fileName) {
        this.fileName = fileName;
    }

    public void setContentType(String ContentType) {
        this.ContentType = ContentType;
    }

    public void setFileSize(long fileSize) {
        this.fileSize = fileSize;
    }

    public static long bytesToLong(byte[] bytes) {
        buffer.put(bytes, 0, bytes.length);
        buffer.flip();//need flip 
        return buffer.getLong();
    }

}