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1
18
19 package sync4j.syncclient.common;
20
21 import java.util.HashMap  ;
22 import java.util.Iterator ;
23 import java.util.Map ;
24 import java.util.Vector ;
25
26
52
53 public class XMLHashMapParser {
54
55
57 private static final String NULL_VALUE = "NULL_VALUE";
58
59
60
66 public static String toXML(Map values) {
67 StringBuffer sbXml = new StringBuffer ("<RECORD>");
68
69 Iterator keys = values.keySet().iterator();
70 String name = null;
71 String value = null;
72 Object objectValue = null;
73 while (keys.hasNext()) {
74 name = (String )keys.next();
75 objectValue = values.get(name);
76 if (objectValue == null) {
77 value = NULL_VALUE;
78 } else {
79 value = objectValue.toString();
80 }
81
82 sbXml.append("\n<FIELD>\n<NAME>");
83 sbXml.append(name);
84 sbXml.append("</NAME>\n<VALUE>");
85 sbXml.append(value);
86 sbXml.append("</VALUE>\n</FIELD>");
87
88 }
89
90 sbXml.append("\n</RECORD>");
91
92 return sbXml.toString();
93 }
94
95
101 public static Map toMap(String xml) throws IllegalStateException {
102 Map values = new HashMap ();
103
104 String record = getTagContent(xml, "RECORD");
105
106 if (record == null) {
107 throw new IllegalStateException ("Bad xml rappresentation");
108 }
109
110 Vector fields = getListTagContent(record, "FIELD");
111 String field = null;
112 String name = null;
113 String value = null;
114
115 int numFields = fields.size();
116 for (int i=0; i<numFields; i++) {
117 field = (String )fields.elementAt(i);
118 name = getTagContent(field, "NAME");
119 value = getTagContent(field, "VALUE");
120
121 values.put(name, value);
122 }
123
124 return values;
125 }
126
127
135 private static Vector getListTagContent(String xml, String tag) {
136 Vector tagsContent = new Vector ();
137
138 String startTag = "<" + tag + ">";
139 String endTag = "</" + tag + ">";
140
141 int indexStartTag = 0;
142 int indexEndTag = 0;
143
144 String tagContent = null;
145
146 while ( (indexStartTag = xml.indexOf(startTag, indexEndTag)) != -1 ) {
147 indexEndTag = xml.indexOf(endTag, indexStartTag);
148
149 if (indexEndTag == -1) {
150 break;
152 }
153
154 if (indexStartTag == -1 || indexEndTag == -1) {
155 return tagsContent;
156 }
157
158 tagContent = xml.substring(indexStartTag, indexEndTag);
159 tagsContent.addElement(tagContent);
160
161 }
162 return tagsContent;
163 }
164
165
171 private static String getTagContent(String xml, String tag) {
172 String startTag = "<" + tag + ">";
173 String endTag = "</" + tag + ">";
174 int indexStartTag = xml.indexOf(startTag) + startTag.length();
175 int indexEndTag = xml.indexOf(endTag);
176
177 if (indexStartTag == -1 || indexEndTag == -1) {
178 return null;
179 }
180
181 return xml.substring(indexStartTag, indexEndTag);
182
183 }
184
185
186 } |
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