Java tutorial
/** * 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; import java.io.File; import java.io.IOException; import java.util.ArrayList; import java.util.Collections; import java.util.Enumeration; import java.util.HashMap; import java.util.Iterator; import java.util.LinkedHashMap; import java.util.List; import java.util.Map; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletRequestWrapper; import org.apache.commons.fileupload.FileUploadException; import org.apache.commons.fileupload.LiferayDiskFileUpload; import org.apache.commons.fileupload.LiferayFileItem; import org.apache.commons.fileupload.LiferayFileItemFactory; import org.apache.commons.fileupload.servlet.ServletFileUpload; import com.dotmarketing.util.Logger; import com.liferay.util.GetterUtil; import com.liferay.util.SystemProperties; /** * <a href="UploadServletRequest.java.html"><b><i>View Source</i></b></a> * * @author Brian Wing Shun Chan * @author Zongliang Li * @version $Revision: 1.18 $ * */ public class UploadServletRequest extends HttpServletRequestWrapper { public static final int DEFAULT_SIZE_MAX = GetterUtil .getInteger(SystemProperties.get(UploadServletRequest.class.getName() + ".max.size")); public static final File DEFAULT_TEMP_DIR = new File( GetterUtil.get(SystemProperties.get(UploadServletRequest.class.getName() + ".temp.dir"), (String) SystemProperties.get("java.io.tmpdir"))); public UploadServletRequest(HttpServletRequest req) throws IOException { super(req); _params = new LinkedHashMap(); try { //DiskFileUpload diskFileUpload = new DiskFileUpload( // new LiferayFileItemFactory(DEFAULT_TEMP_DIR)); ServletFileUpload diskFileUpload = new LiferayDiskFileUpload( new LiferayFileItemFactory(DEFAULT_TEMP_DIR), req); diskFileUpload.setSizeMax(DEFAULT_SIZE_MAX); List list = diskFileUpload.parseRequest(req); for (int i = 0; i < list.size(); i++) { LiferayFileItem fileItem = (LiferayFileItem) list.get(i); if (fileItem.isFormField()) { fileItem.setString(req.getCharacterEncoding()); } LiferayFileItem[] fileItems = (LiferayFileItem[]) _params.get(fileItem.getFieldName()); if (fileItems == null) { fileItems = new LiferayFileItem[] { fileItem }; } else { LiferayFileItem[] newFileItems = new LiferayFileItem[fileItems.length + 1]; System.arraycopy(fileItems, 0, newFileItems, 0, fileItems.length); newFileItems[newFileItems.length - 1] = fileItem; fileItems = newFileItems; } _params.put(fileItem.getFieldName(), fileItems); if (fileItem.getFileName() != null) _params.put(fileItem.getFileName(), new LiferayFileItem[] { fileItem }); } } catch (FileUploadException fue) { Logger.error(this, fue.getMessage(), fue); } } public String getContentType() { // Workaround to prevent Struts from processing the multipart content // again return null; } public String getContentType(String name) { if (getFileName(name) == null) { return null; } LiferayFileItem[] fileItems = (LiferayFileItem[]) _params.get(name); if ((fileItems != null) && (fileItems.length > 0)) { return fileItems[0].getContentType(); } else { return null; } } public File getFile(String name) { if (getFileName(name) == null) { return null; } LiferayFileItem[] fileItems = (LiferayFileItem[]) _params.get(name); if ((fileItems != null) && (fileItems.length > 0)) { return fileItems[0].getStoreLocation(); } else { return null; } } public String getFileName(String name) { LiferayFileItem[] fileItems = (LiferayFileItem[]) _params.get(name); if (fileItems == null || fileItems.length == 0) return null; else if ((fileItems != null) && (fileItems.length > 0)) { return fileItems[0].getFileName(); } else { return null; } } public String getFullFileName(String name) { LiferayFileItem[] fileItems = (LiferayFileItem[]) _params.get(name); if ((fileItems != null) && (fileItems.length > 0)) { return fileItems[0].getFullFileName(); } else { return null; } } public String getParameter(String name) { LiferayFileItem[] fileItems = (LiferayFileItem[]) _params.get(name); if ((fileItems != null) && (fileItems.length > 0)) { return fileItems[0].getString(); } else { return super.getParameter(name); } } public Map getParameterMap() { Map map = new HashMap(); Enumeration enu = getParameterNames(); while (enu.hasMoreElements()) { String name = (String) enu.nextElement(); map.put(name, getParameterValues(name)); } return map; } public Enumeration getParameterNames() { List parameterNames = new ArrayList(); Enumeration enu = super.getParameterNames(); while (enu.hasMoreElements()) { String name = (String) enu.nextElement(); if (!_params.containsKey(name)) { parameterNames.add(name); } } Iterator itr = _params.keySet().iterator(); while (itr.hasNext()) { String name = (String) itr.next(); parameterNames.add(name); } return Collections.enumeration(parameterNames); } public String[] getParameterValues(String name) { String[] parentValues = super.getParameterValues(name); LiferayFileItem[] fileItems = (LiferayFileItem[]) _params.get(name); if ((fileItems == null) || (fileItems.length == 0)) { return parentValues; } else if ((parentValues == null) || (parentValues.length == 0)) { String[] values = new String[fileItems.length]; for (int i = 0; i < values.length; i++) { values[i] = fileItems[i].getString(); } return values; } else { String[] values = new String[parentValues.length + fileItems.length]; System.arraycopy(parentValues, 0, values, 0, parentValues.length); for (int i = parentValues.length; i < values.length; i++) { values[i] = fileItems[i - parentValues.length].getString(); } return values; } } private Map _params; }