1 package org.apache.turbine.services.intake.model;
2
3 /* ====================================================================
4 * The Apache Software License, Version 1.1
5 *
6 * Copyright (c) 2001 The Apache Software Foundation. All rights
7 * reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 *
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
19 * distribution.
20 *
21 * 3. The end-user documentation included with the redistribution,
22 * if any, must include the following acknowledgment:
23 * "This product includes software developed by the
24 * Apache Software Foundation (http://www.apache.org/)."
25 * Alternately, this acknowledgment may appear in the software itself,
26 * if and wherever such third-party acknowledgments normally appear.
27 *
28 * 4. The names "Apache" and "Apache Software Foundation" and
29 * "Apache Turbine" must not be used to endorse or promote products
30 * derived from this software without prior written permission. For
31 * written permission, please contact apache@apache.org.
32 *
33 * 5. Products derived from this software may not be called "Apache",
34 * "Apache Turbine", nor may "Apache" appear in their name, without
35 * prior written permission of the Apache Software Foundation.
36 *
37 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
38 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
39 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
40 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
41 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
42 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
43 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
44 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
45 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
46 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
47 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
48 * SUCH DAMAGE.
49 * ====================================================================
50 *
51 * This software consists of voluntary contributions made by many
52 * individuals on behalf of the Apache Software Foundation. For more
53 * information on the Apache Software Foundation, please see
54 * <http://www.apache.org/>.
55 */
56
57 import org.apache.turbine.services.intake.validator.FileValidator;
58 import org.apache.turbine.services.intake.validator.ValidationException;
59 import org.apache.turbine.services.intake.xmlmodel.XmlField;
60 import org.apache.turbine.util.ParameterParser;
61 import org.apache.turbine.util.RunData;
62 import org.apache.turbine.util.TurbineException;
63 import org.apache.turbine.util.upload.FileItem;
64
65 /***
66 *
67 * @version $Id: FileItemField.java,v 1.3 2002/07/11 16:53:27 mpoeschl Exp $
68 */
69 public class FileItemField extends Field
70 {
71
72 public FileItemField(XmlField field, Group group)
73 throws Exception
74 {
75 super(field, group);
76 }
77
78 /***
79 * Sets the default value for an FileItemField
80 */
81
82 protected void setDefaultValue(String prop)
83 {
84 defaultValue = prop;
85 }
86
87 /***
88 * A suitable validator.
89 *
90 * @return "FileValidator"
91 */
92 protected String getDefaultValidator()
93 {
94 return "org.apache.turbine.services.intake.validator.FileValidator";
95 }
96
97 /***
98 * Method called when this field (the group it belongs to) is
99 * pulled from the pool. The request data is searched to determine
100 * if a value has been supplied for this field. if so, the value
101 * is validated.
102 *
103 * @param data a <code>RunData</code> value
104 * @return a <code>Field</code> value
105 * @exception TurbineException if an error occurs
106 */
107 public Field init(RunData data)
108 throws TurbineException
109 {
110 this.data = data;
111 valid_flag = true;
112
113 ParameterParser pp = data.getParameters();
114 if ( pp.containsKey(getKey()) )
115 {
116 set_flag = true;
117 validate(pp);
118 }
119
120 initialized = true;
121 return this;
122 }
123
124 /***
125 * Compares request data with constraints and sets the valid flag.
126 */
127 protected boolean validate(ParameterParser pp)
128 // throws TurbineException
129 {
130 if ( isMultiValued )
131 {
132 FileItem[] ss = pp.getFileItems(getKey());
133 // this definition of not set might need refined. But
134 // not sure the situation will arise.
135 if ( ss.length == 0 )
136 {
137 set_flag = false;
138 }
139
140 if ( validator != null )
141 {
142 for (int i=0; i<ss.length; i++)
143 {
144 try
145 {
146 ((FileValidator)validator).assertValidity(ss[i]);
147 }
148 catch (ValidationException ve)
149 {
150 setMessage(ve.getMessage());
151 }
152 }
153 }
154
155 if ( set_flag && valid_flag )
156 {
157 doSetValue(pp);
158 }
159
160 }
161 else
162 {
163 FileItem s = pp.getFileItem(getKey());
164 if ( s == null || s.getSize() == 0 )
165 {
166 set_flag = false;
167 }
168
169 if ( validator != null )
170 {
171 try
172 {
173 ((FileValidator)validator).assertValidity(s);
174
175 if ( set_flag )
176 {
177 doSetValue(pp);
178 }
179 }
180 catch (ValidationException ve)
181 {
182 setMessage(ve.getMessage());
183 }
184 }
185 else if ( set_flag )
186 {
187 doSetValue(pp);
188 }
189 }
190
191 return valid_flag;
192 }
193
194 /***
195 * converts the parameter to the correct Object.
196 */
197 protected void doSetValue(ParameterParser pp)
198 {
199 if ( isMultiValued )
200 {
201 setTestValue(pp.getFileItems(getKey()));
202 }
203 else
204 {
205 setTestValue(pp.getFileItem(getKey()));
206 }
207 }
208 }
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