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1 package com.icl.saxon.style;
2 import com.icl.saxon.tree.AttributeCollection;
3 import com.icl.saxon.*;
4 import com.icl.saxon.om.*;
5 import com.icl.saxon.expr.*;
6 import com.icl.saxon.sort.*;
7 import javax.xml.transform.*;
8 import java.io.*;
9 import java.util.*;
10
11
14
15 public class XSLSort extends StyleElement {
16
17 private SortKeyDefinition sortKeyDefinition;
18
19 public void prepareAttributes() throws TransformerConfigurationException {
20
21 Expression select;
22 Expression order;
23 Expression dataType;
24 Expression caseOrder;
25 Expression lang;
26
27 StandardNames sn = getStandardNames();
28 AttributeCollection atts = getAttributeList();
29
30 String  selectAtt = null;
31 String orderAtt = null;
32 String dataTypeAtt = null;
33 String caseOrderAtt = null;
34 String langAtt = null;
35
36 for (int a=0; a<atts.getLength(); a++) {
37 int nc = atts.getNameCode(a);
38 int f = nc & 0xfffff;
39 if (f==sn.SELECT) {
40 selectAtt = atts.getValue(a);
41 } else if (f==sn.ORDER) {
42 orderAtt = atts.getValue(a);
43 } else if (f==sn.DATA_TYPE) {
44 dataTypeAtt = atts.getValue(a);
45 } else if (f==sn.CASE_ORDER) {
46 caseOrderAtt = atts.getValue(a);
47 } else if (f==sn.LANG) {
48 langAtt = atts.getValue(a);
49 } else {
50 checkUnknownAttribute(nc);
51 }
52 }
53
54 if (selectAtt==null) {
55 select = new ContextNodeExpression();
56 } else {
57 select = makeExpression(selectAtt);
58 }
59
60 if (orderAtt == null) {
61 order = new StringValue("ascending");
62 } else {
63 order = makeAttributeValueTemplate(orderAtt);
64 }
65
66 if (dataTypeAtt == null) {
67 dataType = new StringValue("text");
68 } else {
69 dataType = makeAttributeValueTemplate(dataTypeAtt);
70 }
71
72 if (caseOrderAtt == null) {
73 caseOrder = new StringValue("#default");
74 } else {
75 caseOrder = makeAttributeValueTemplate(caseOrderAtt);
76 }
77
78 if (langAtt == null) {
79 lang = new StringValue(Locale.getDefault().getLanguage());
80 } else {
81 lang = makeAttributeValueTemplate(langAtt);
82 }
83
84 try {
85 sortKeyDefinition = new SortKeyDefinition();
86 sortKeyDefinition.setSortKey(select);
87 sortKeyDefinition.setOrder(order);
88 sortKeyDefinition.setDataType(dataType);
89 sortKeyDefinition.setCaseOrder(caseOrder);
90 sortKeyDefinition.setLanguage(lang);
91 sortKeyDefinition.setStaticContext(new ExpressionContext(this));
92 sortKeyDefinition.bindComparer();
93 } catch (XPathException err) {
94 compileError(err);
95 }
96 }
97
98 public void validate() throws TransformerConfigurationException {
99 NodeInfo parent = (NodeInfo)getParentNode();
100 if (!((parent instanceof XSLApplyTemplates) ||
101 (parent instanceof XSLForEach) ||
102 (parent instanceof SAXONGroup) )) {
104 compileError("xsl:sort must be child of xsl:apply-templates or xsl:for-each");
105 }
106 }
107
108 public void process(Context context) throws TransformerException
109 {}
110
111 public SortKeyDefinition getSortKeyDefinition() {
112 return sortKeyDefinition;
113 }
114
115 }
116
117 |
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