org.azkfw.web.purser.HttpServletMultipartPurser.java Source code

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Here is the source code for org.azkfw.web.purser.HttpServletMultipartPurser.java

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/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.azkfw.web.purser;

import java.io.File;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

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;
import org.azkfw.util.FileUtility;
import org.azkfw.util.PathUtility;
import org.azkfw.util.UUIDUtility;
import org.azkfw.web.WebServiceException;
import org.azkfw.web.constant.WebConstant;

public final class HttpServletMultipartPurser extends AbstractHttpServletPurser {

    // private String encoding = "Windows-31J";
    private String encoding = "UTF-8";

    private String temporaryDirectory;

    /**
     * 
     */
    public HttpServletMultipartPurser() {
        super(HttpServletMultipartPurser.class);
    }

    @Override
    protected void doInitialize() {
        String path = WebConstant.getServletFileUploadTemporaryDirectory();
        temporaryDirectory = PathUtility.cat(path, UUIDUtility.generateToShortString());
        File dir = new File(temporaryDirectory);
        dir.mkdirs();
    }

    @Override
    protected void doDestroy() {
        FileUtility.remove(temporaryDirectory);
    }

    @Override
    protected Map<String, Object> doPurse(final HttpServletRequest aReq, final HttpServletResponse aRes)
            throws WebServiceException {
        Map<String, Object> parameter = new HashMap<String, Object>();

        if (ServletFileUpload.isMultipartContent(aReq)) {
            DiskFileItemFactory factory = new DiskFileItemFactory();
            ServletFileUpload upload = new ServletFileUpload(factory);

            factory.setSizeThreshold(1024);
            upload.setSizeMax(-1);
            upload.setHeaderEncoding(encoding);

            try {
                List<FileItem> list = upload.parseRequest(aReq);

                Iterator<FileItem> iterator = list.iterator();
                while (iterator.hasNext()) {
                    FileItem fItem = (FileItem) iterator.next();

                    if (fItem.isFormField()) {
                        parameter.put(fItem.getFieldName(), fItem.getString(encoding));
                    } else {
                        String fileName = fItem.getName();
                        if ((fileName != null) && (!fileName.equals(""))) {
                            fileName = (new File(fileName)).getName();
                            String filePath = PathUtility.cat(temporaryDirectory, fileName);
                            File file = new File(filePath);
                            fItem.write(file);
                            parameter.put(fItem.getFieldName(), file);
                        }
                    }
                }
            } catch (FileUploadException ex) {
                throw new WebServiceException(ex);
            } catch (Exception ex) {
                throw new WebServiceException(ex);
            }

        } else {

            for (String key : (Set<String>) aReq.getParameterMap().keySet()) {
                String[] values = aReq.getParameterValues(key);
                if (1 == values.length) {
                    parameter.put(key, values[0]);
                } else {
                    parameter.put(key, values);
                }
            }

        }

        return parameter;
    }
}