Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
Upload |
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| 1.5;1.5 |
1 | // Copyright 2004, 2005 The Apache Software Foundation |
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2 | // |
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3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
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4 | // you may not use this file except in compliance with the License. |
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5 | // You may obtain a copy of the License at |
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6 | // |
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7 | // http://www.apache.org/licenses/LICENSE-2.0 |
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8 | // |
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9 | // Unless required by applicable law or agreed to in writing, software |
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10 | // distributed under the License is distributed on an "AS IS" BASIS, |
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11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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12 | // See the License for the specific language governing permissions and |
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13 | // limitations under the License. |
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14 | ||
15 | package org.apache.tapestry.form; |
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16 | ||
17 | import org.apache.hivemind.HiveMind; |
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18 | import org.apache.tapestry.IForm; |
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19 | import org.apache.tapestry.IMarkupWriter; |
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20 | import org.apache.tapestry.IRequestCycle; |
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21 | import org.apache.tapestry.multipart.MultipartDecoder; |
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22 | import org.apache.tapestry.request.IUploadFile; |
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23 | import org.apache.tapestry.valid.ValidatorException; |
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24 | ||
25 | /** |
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26 | * Form element used to upload files. [ <a |
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27 | * href="../../../../../ComponentReference/Upload.html">Component Reference |
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28 | * </a>] |
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29 | * <p> |
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30 | * As of 4.0, this component can be validated. |
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31 | * |
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32 | * @author Howard Lewis Ship |
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33 | * @author Paul Ferraro |
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34 | * @since 1.0.8 |
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35 | */ |
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36 | ||
37 | 0 | public abstract class Upload extends AbstractFormComponent implements ValidatableField |
38 | { |
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39 | public abstract void setFile(IUploadFile file); |
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40 | ||
41 | /** |
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42 | * @see org.apache.tapestry.form.AbstractFormComponent#renderFormComponent(org.apache.tapestry.IMarkupWriter, |
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43 | * org.apache.tapestry.IRequestCycle) |
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44 | */ |
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45 | protected void renderFormComponent(IMarkupWriter writer, IRequestCycle cycle) |
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46 | { |
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47 | // Force the form to use the correct encoding type for file uploads. |
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48 | 0 | IForm form = getForm(); |
49 | ||
50 | 0 | form.setEncodingType("multipart/form-data"); |
51 | ||
52 | 0 | renderDelegatePrefix(writer, cycle); |
53 | ||
54 | 0 | writer.beginEmpty("input"); |
55 | 0 | writer.attribute("type", "file"); |
56 | 0 | writer.attribute("name", getName()); |
57 | ||
58 | 0 | if (isDisabled()) |
59 | { |
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60 | 0 | writer.attribute("disabled", "disabled"); |
61 | } |
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62 | ||
63 | 0 | renderIdAttribute(writer, cycle); |
64 | ||
65 | 0 | renderDelegateAttributes(writer, cycle); |
66 | ||
67 | 0 | getValidatableFieldSupport().renderContributions(this, writer, cycle); |
68 | ||
69 | 0 | renderInformalParameters(writer, cycle); |
70 | ||
71 | 0 | writer.closeTag(); |
72 | ||
73 | 0 | renderDelegateSuffix(writer, cycle); |
74 | 0 | } |
75 | ||
76 | /** |
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77 | * @see org.apache.tapestry.form.AbstractFormComponent#rewindFormComponent(org.apache.tapestry.IMarkupWriter, |
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78 | * org.apache.tapestry.IRequestCycle) |
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79 | */ |
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80 | protected void rewindFormComponent(IMarkupWriter writer, IRequestCycle cycle) |
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81 | { |
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82 | 0 | IUploadFile file = getDecoder().getFileUpload(getName()); |
83 | ||
84 | 0 | if (file != null && HiveMind.isBlank(file.getFileName())) |
85 | { |
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86 | 0 | file = null; |
87 | } |
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88 | ||
89 | try |
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90 | { |
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91 | 0 | getValidatableFieldSupport().validate(this, writer, cycle, file); |
92 | ||
93 | 0 | setFile(file); |
94 | } |
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95 | 0 | catch (ValidatorException e) |
96 | { |
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97 | 0 | getForm().getDelegate().record(e); |
98 | 0 | } |
99 | 0 | } |
100 | ||
101 | /** |
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102 | * Injected. |
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103 | */ |
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104 | public abstract ValidatableFieldSupport getValidatableFieldSupport(); |
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105 | ||
106 | /** |
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107 | * Injected. |
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108 | */ |
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109 | public abstract MultipartDecoder getDecoder(); |
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110 | ||
111 | /** |
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112 | * @see org.apache.tapestry.form.AbstractFormComponent#isRequired() |
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113 | */ |
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114 | public boolean isRequired() |
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115 | { |
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116 | 0 | return getValidatableFieldSupport().isRequired(this); |
117 | } |
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118 | } |