Shuyi Chen | d7955ce | 2013-05-22 14:51:55 -0700 | [diff] [blame] | 1 | /** |
| 2 | * $RCSfile$ |
| 3 | * $Revision$ |
| 4 | * $Date$ |
| 5 | * |
| 6 | * Copyright 2003-2007 Jive Software. |
| 7 | * |
| 8 | * All rights reserved. Licensed under the Apache License, Version 2.0 (the "License"); |
| 9 | * you may not use this file except in compliance with the License. |
| 10 | * You may obtain a copy of the License at |
| 11 | * |
| 12 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 13 | * |
| 14 | * Unless required by applicable law or agreed to in writing, software |
| 15 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 16 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 17 | * See the License for the specific language governing permissions and |
| 18 | * limitations under the License. |
| 19 | */ |
| 20 | |
| 21 | package org.jivesoftware.smackx.provider; |
| 22 | |
| 23 | import org.jivesoftware.smack.packet.PacketExtension; |
| 24 | import org.jivesoftware.smack.provider.PacketExtensionProvider; |
| 25 | import org.jivesoftware.smackx.FormField; |
| 26 | import org.jivesoftware.smackx.packet.DataForm; |
| 27 | import org.xmlpull.v1.XmlPullParser; |
| 28 | |
| 29 | import java.util.ArrayList; |
| 30 | import java.util.List; |
| 31 | |
| 32 | /** |
| 33 | * The DataFormProvider parses DataForm packets. |
| 34 | * |
| 35 | * @author Gaston Dombiak |
| 36 | */ |
| 37 | public class DataFormProvider implements PacketExtensionProvider { |
| 38 | |
| 39 | /** |
| 40 | * Creates a new DataFormProvider. |
| 41 | * ProviderManager requires that every PacketExtensionProvider has a public, no-argument constructor |
| 42 | */ |
| 43 | public DataFormProvider() { |
| 44 | } |
| 45 | |
| 46 | public PacketExtension parseExtension(XmlPullParser parser) throws Exception { |
| 47 | boolean done = false; |
| 48 | StringBuilder buffer = null; |
| 49 | DataForm dataForm = new DataForm(parser.getAttributeValue("", "type")); |
| 50 | while (!done) { |
| 51 | int eventType = parser.next(); |
| 52 | if (eventType == XmlPullParser.START_TAG) { |
| 53 | if (parser.getName().equals("instructions")) { |
| 54 | dataForm.addInstruction(parser.nextText()); |
| 55 | } |
| 56 | else if (parser.getName().equals("title")) { |
| 57 | dataForm.setTitle(parser.nextText()); |
| 58 | } |
| 59 | else if (parser.getName().equals("field")) { |
| 60 | dataForm.addField(parseField(parser)); |
| 61 | } |
| 62 | else if (parser.getName().equals("item")) { |
| 63 | dataForm.addItem(parseItem(parser)); |
| 64 | } |
| 65 | else if (parser.getName().equals("reported")) { |
| 66 | dataForm.setReportedData(parseReported(parser)); |
| 67 | } |
| 68 | } else if (eventType == XmlPullParser.END_TAG) { |
| 69 | if (parser.getName().equals(dataForm.getElementName())) { |
| 70 | done = true; |
| 71 | } |
| 72 | } |
| 73 | } |
| 74 | return dataForm; |
| 75 | } |
| 76 | |
| 77 | private FormField parseField(XmlPullParser parser) throws Exception { |
| 78 | boolean done = false; |
| 79 | FormField formField = new FormField(parser.getAttributeValue("", "var")); |
| 80 | formField.setLabel(parser.getAttributeValue("", "label")); |
| 81 | formField.setType(parser.getAttributeValue("", "type")); |
| 82 | while (!done) { |
| 83 | int eventType = parser.next(); |
| 84 | if (eventType == XmlPullParser.START_TAG) { |
| 85 | if (parser.getName().equals("desc")) { |
| 86 | formField.setDescription(parser.nextText()); |
| 87 | } |
| 88 | else if (parser.getName().equals("value")) { |
| 89 | formField.addValue(parser.nextText()); |
| 90 | } |
| 91 | else if (parser.getName().equals("required")) { |
| 92 | formField.setRequired(true); |
| 93 | } |
| 94 | else if (parser.getName().equals("option")) { |
| 95 | formField.addOption(parseOption(parser)); |
| 96 | } |
| 97 | } else if (eventType == XmlPullParser.END_TAG) { |
| 98 | if (parser.getName().equals("field")) { |
| 99 | done = true; |
| 100 | } |
| 101 | } |
| 102 | } |
| 103 | return formField; |
| 104 | } |
| 105 | |
| 106 | private DataForm.Item parseItem(XmlPullParser parser) throws Exception { |
| 107 | boolean done = false; |
| 108 | List<FormField> fields = new ArrayList<FormField>(); |
| 109 | while (!done) { |
| 110 | int eventType = parser.next(); |
| 111 | if (eventType == XmlPullParser.START_TAG) { |
| 112 | if (parser.getName().equals("field")) { |
| 113 | fields.add(parseField(parser)); |
| 114 | } |
| 115 | } else if (eventType == XmlPullParser.END_TAG) { |
| 116 | if (parser.getName().equals("item")) { |
| 117 | done = true; |
| 118 | } |
| 119 | } |
| 120 | } |
| 121 | return new DataForm.Item(fields); |
| 122 | } |
| 123 | |
| 124 | private DataForm.ReportedData parseReported(XmlPullParser parser) throws Exception { |
| 125 | boolean done = false; |
| 126 | List<FormField> fields = new ArrayList<FormField>(); |
| 127 | while (!done) { |
| 128 | int eventType = parser.next(); |
| 129 | if (eventType == XmlPullParser.START_TAG) { |
| 130 | if (parser.getName().equals("field")) { |
| 131 | fields.add(parseField(parser)); |
| 132 | } |
| 133 | } else if (eventType == XmlPullParser.END_TAG) { |
| 134 | if (parser.getName().equals("reported")) { |
| 135 | done = true; |
| 136 | } |
| 137 | } |
| 138 | } |
| 139 | return new DataForm.ReportedData(fields); |
| 140 | } |
| 141 | |
| 142 | private FormField.Option parseOption(XmlPullParser parser) throws Exception { |
| 143 | boolean done = false; |
| 144 | FormField.Option option = null; |
| 145 | String label = parser.getAttributeValue("", "label"); |
| 146 | while (!done) { |
| 147 | int eventType = parser.next(); |
| 148 | if (eventType == XmlPullParser.START_TAG) { |
| 149 | if (parser.getName().equals("value")) { |
| 150 | option = new FormField.Option(label, parser.nextText()); |
| 151 | } |
| 152 | } else if (eventType == XmlPullParser.END_TAG) { |
| 153 | if (parser.getName().equals("option")) { |
| 154 | done = true; |
| 155 | } |
| 156 | } |
| 157 | } |
| 158 | return option; |
| 159 | } |
| 160 | } |