001: /* ====================================================================
002: * The Jcorporate Apache Style Software License, Version 1.2 05-07-2002
003: *
004: * Copyright (c) 1995-2002 Jcorporate Ltd. All rights reserved.
005: *
006: * Redistribution and use in source and binary forms, with or without
007: * modification, are permitted provided that the following conditions
008: * are met:
009: *
010: * 1. Redistributions of source code must retain the above copyright
011: * notice, this list of conditions and the following disclaimer.
012: *
013: * 2. Redistributions in binary form must reproduce the above copyright
014: * notice, this list of conditions and the following disclaimer in
015: * the documentation and/or other materials provided with the
016: * distribution.
017: *
018: * 3. The end-user documentation included with the redistribution,
019: * if any, must include the following acknowledgment:
020: * "This product includes software developed by Jcorporate Ltd.
021: * (http://www.jcorporate.com/)."
022: * Alternately, this acknowledgment may appear in the software itself,
023: * if and wherever such third-party acknowledgments normally appear.
024: *
025: * 4. "Jcorporate" and product names such as "Expresso" must
026: * not be used to endorse or promote products derived from this
027: * software without prior written permission. For written permission,
028: * please contact info@jcorporate.com.
029: *
030: * 5. Products derived from this software may not be called "Expresso",
031: * or other Jcorporate product names; nor may "Expresso" or other
032: * Jcorporate product names appear in their name, without prior
033: * written permission of Jcorporate Ltd.
034: *
035: * 6. No product derived from this software may compete in the same
036: * market space, i.e. framework, without prior written permission
037: * of Jcorporate Ltd. For written permission, please contact
038: * partners@jcorporate.com.
039: *
040: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
041: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
042: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
043: * DISCLAIMED. IN NO EVENT SHALL JCORPORATE LTD OR ITS CONTRIBUTORS
044: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
045: * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
046: * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
047: * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
048: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
049: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
050: * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
051: * SUCH DAMAGE.
052: * ====================================================================
053: *
054: * This software consists of voluntary contributions made by many
055: * individuals on behalf of the Jcorporate Ltd. Contributions back
056: * to the project(s) are encouraged when you make modifications.
057: * Please send them to support@jcorporate.com. For more information
058: * on Jcorporate Ltd. and its products, please see
059: * <http://www.jcorporate.com/>.
060: *
061: * Portions of this software are based upon other open source
062: * products and are subject to their respective licenses.
063: */
064:
065: /**
066: * Upload: A controller to demonstrate uploading of files. Doesn't actually
067: * *do* anything with the uploaded file :-)
068: *
069: */package com.jcorporate.expresso.ext.controller;
070:
071: import com.jcorporate.expresso.core.controller.ControllerException;
072: import com.jcorporate.expresso.core.controller.ControllerRequest;
073: import com.jcorporate.expresso.core.controller.ControllerResponse;
074: import com.jcorporate.expresso.core.controller.DBController;
075: import com.jcorporate.expresso.core.controller.Input;
076: import com.jcorporate.expresso.core.controller.NonHandleableException;
077: import com.jcorporate.expresso.core.controller.Output;
078: import com.jcorporate.expresso.core.controller.State;
079: import com.jcorporate.expresso.core.controller.Transition;
080: import com.jcorporate.expresso.core.misc.StringUtil;
081: import org.apache.log4j.Logger;
082:
083: import java.io.File;
084: import java.util.Enumeration;
085: import java.util.Hashtable;
086:
087: /**
088: * This class is a sample of using uploading files. Your own implementation
089: * would do something during the runUploadState to process the file.
090: *
091: * @author Michael Rimov
092: */
093: public class Upload extends DBController {
094: private static Logger log = Logger.getLogger(Upload.class);
095:
096: /**
097: *
098: */
099: public Upload() {
100: State prompt = new State("prompt", "Prompt for Upload of File");
101: addState(prompt);
102: setInitialState("prompt");
103:
104: State upload = new State("upload", "Process Upload");
105: addState(upload);
106: this
107: .setSchema(com.jcorporate.expresso.core.ExpressoSchema.class);
108: } /* Upload() */
109:
110: /**
111: * Return the title of this Controller
112: *
113: * @return java.lang.String The Title of the controller
114: */
115: public String getTitle() {
116: return ("Upload");
117: } /* getTitle() */
118:
119: private void runPromptState(ControllerRequest req,
120: ControllerResponse res) throws ControllerException {
121: String currentNumber = StringUtil.notNull(req
122: .getParameter("number"));
123:
124: // this attribute is never fetched in framework; can we remove it? LAH 4/04
125: res.setAttribute("formEncoding", "multipart/form-data");
126:
127: int promptCount = 1;
128:
129: if (!currentNumber.equals("")) {
130: try {
131: promptCount = new Integer(currentNumber).intValue();
132: } catch (NumberFormatException ne) {
133: throw new ControllerException(ne);
134: }
135: }
136: for (int currCount = 1; currCount <= promptCount; currCount++) {
137: Input filePrompt = new Input("File" + currCount);
138: filePrompt.setLabel("File");
139: filePrompt.setType("file");
140: res.add(filePrompt);
141: }
142:
143: Transition doUpload = new Transition("upload", "Upload", this
144: .getClass(), "upload");
145: res.add(doUpload);
146:
147: Transition promptMore = new Transition("morefiles",
148: "More Files", this .getClass(), "prompt");
149: promptMore.addParam("number", "" + promptCount + 5);
150: res.add(promptMore);
151: } /* run() */
152:
153: private void runUploadState(ControllerRequest req,
154: ControllerResponse res) throws ControllerException,
155: NonHandleableException {
156: Hashtable params = req.getParameters();
157: int processedCount = 0;
158:
159: for (Enumeration e = params.keys(); e.hasMoreElements();) {
160: String oneParamName = (String) e.nextElement();
161: String clientFileName = null;
162: String fileParamName = null;
163:
164: if (req.isFileParameter(fileParamName)) {
165: res.addOutput(new Output("title", "Files Uploaded"));
166:
167: String fileName = req.getFileName(fileParamName);
168: File f = new File(fileName);
169:
170: if (f != null) {
171: res.addOutput(new Output(clientFileName, ""
172: + f.length()));
173: } else {
174: res.addOutput(new Output("Not found"));
175: }
176:
177: processedCount++;
178:
179: /* Here we queue the job that either publishes or */
180:
181: /* distributes the named file as the named resource */
182: if (log.isInfoEnabled()) {
183: log.info("User " + req.getUser()
184: + " uploaded file '" + fileName + "'");
185: }
186: } /* if */
187:
188: } /* for each parameter */
189:
190: res.addOutput(new Output("" + processedCount
191: + " files processed"));
192: } /* runUploadState */
193:
194: } /* Upload */
195:
196: /* Upload */
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