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1
29
30 package com.caucho.jstl.rt;
31
32 import com.caucho.jsp.BodyContentImpl;
33 import com.caucho.jsp.PageContextImpl;
34 import com.caucho.util.L10N;
35 import com.caucho.vfs.Vfs;
36 import com.caucho.xml.Xml;
37 import com.caucho.xml.XmlParser;
38
39 import org.w3c.dom.Document  ;
40 import org.xml.sax.InputSource ;
41
42 import javax.servlet.jsp.JspException ;
43 import javax.servlet.jsp.tagext.BodyTagSupport ;
44 import java.io.Reader ;
45
46 public class XmlParseTag extends BodyTagSupport {
47 private static L10N L = new L10N(XmlParseTag.class);
48
49 private Object _xml;
50 private String _systemId;
51 private Object _filter;
52
53 private String _var;
54 private String _scope;
55
56 private String _varDom;
57 private String _scopeDom;
58
59
62 public void setXml(Object xml)
63 {
64 _xml = xml;
65 }
66
67
70 public void setDoc(Object xml)
71 {
72 setXml(xml);
73 }
74
75
78 public void setSystemId(String systemId)
79 {
80 _systemId = systemId;
81 }
82
83
86 public void setFilter(Object filter)
87 {
88 _filter = filter;
89 }
90
91
94 public void setVar(String var)
95 {
96 _var = var;
97 }
98
99
102 public void setScope(String scope)
103 {
104 _scope = scope;
105 }
106
107
110 public void setVarDom(String var)
111 {
112 _varDom = var;
113 }
114
115
118 public void setScopeDom(String scope)
119 {
120 _scopeDom = scope;
121 }
122
123 public int doEndTag() throws JspException
124 {
125 try {
126 PageContextImpl pageContext = (PageContextImpl) this.pageContext;
127 BodyContentImpl body = (BodyContentImpl) getBodyContent();
128
129 Reader reader;
130
131 if (_xml != null) {
132 Object obj = _xml;
133
134 if (obj instanceof Reader )
135 reader = (Reader ) obj;
136 else if (obj instanceof String )
137 reader = Vfs.openString((String ) obj).getReader();
138 else
139 throw new JspException (L.l("xml must be Reader or String at `{0}'",
140 obj));
141 }
142 else if (body != null)
143 reader = body.getReader();
144 else
145 throw new JspException (L.l("doc attribute must be a Reader or String at `{0}'",
146 null));
147
148 XmlParser parser = new Xml();
149
150 InputSource is = new InputSource (reader);
151
152 Document doc = parser.parseDocument(is);
153
154 reader.close();
155
156 if (_var != null)
157 CoreSetTag.setValue(pageContext, _var, _scope, doc);
158 else if (_varDom != null)
159 CoreSetTag.setValue(pageContext, _varDom, _scopeDom, doc);
160 else
161 throw new JspException (L.l("x:parse needs either var or varDom"));
162 } catch (JspException e) {
163 throw e;
164 } catch (Exception e) {
165 throw new JspException (e);
166 }
167
168 return EVAL_PAGE;
169 }
170 }
171 |
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