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1
22
23 package org.xquark.xquery.parser.primitivefunctions.fnfunctions;
24
25 import java.util.ArrayList  ;
26
27 import org.xquark.xquery.parser.*;
28 import org.xquark.xquery.typing.TypeException;
29
30 public class FunctionCOLLECTION extends InputFunctionCall {
31
32 private static final String RCSRevision = "$Revision: 1.8 $";
33 private static final String RCSName = "$Name: $";
34
35 private final static String STAR = "*";
36 private ArrayList sources = new ArrayList (1);
37 private String collectionName = STAR;
38
39
43 public void accept(ParserVisitor visitor) throws XQueryException {
44 visitor.visit(this);
45 }
46
47
51 public FunctionCOLLECTION(ArrayList args, XQueryModule parentModule) throws TypeException, XQueryException {
52 super(new QName("collection",null),null);
53 if (args == null)
54 args = new ArrayList (1);
55 if (args.size() == 0) {
56 args.add(new ValueString("*:*",parentModule));
57 }
58 setArguments(args);
59 setParentModule(parentModule);
60 if (parentModule != null && parentModule.getStaticContext().getTypeVisitor() != null)
61 accept(parentModule.getStaticContext().getTypeVisitor());
62 }
63
64 public void setArguments(ArrayList arguments) throws XQueryException {
65
71 if (arguments == null || arguments.size() == 0) {
72 return;
73 } else if (arguments.size() == 1) {
74 for (int i=0;i<arguments.size();i++) {
75 ValueString valStr = null;
76 try {
77 valStr = (ValueString)arguments.get(i);
78 }
79 catch (ClassCastException e) {
80 throw new XQueryException("Argument of collection function must be a literal string");
81 }
82 String arg = valStr.getValue();
83 int colonIndex = -1;
85 int startIndex = 0;
86 while ((colonIndex = arg.indexOf(":",startIndex)) != -1) {
87 sources.add(arg.substring(startIndex,colonIndex));
88 startIndex = colonIndex+1;
89 }
90 collectionName = arg.substring(startIndex);
91 if (sources.isEmpty()) {
92 sources.add(STAR);
93 valStr.setValue("*:"+arg);
94 }
95 }
96 }
97 else {
98 throw new XQueryException("Function collection should have at most one argument");
99 }
100 super.setArguments(arguments);
101 }
102
103 public String getCollectionName() {
104 return collectionName;
105 }
106 public String getSourceName() {
107 return (String )sources.get(0);
108 }
109 public void eraseSourceName() throws XQueryException {
110 sources.remove(0);
111 if (sources.isEmpty()) {
112 sources.add(STAR);
113 }
114 StringBuffer buf = new StringBuffer ();
115 for (int i=0;i<sources.size();i++) {
116 buf.append(sources.get(i));
117 buf.append(":");
118 }
119 buf.append(collectionName);
120 ((ValueString)arguments.get(0)).setValue(buf.toString());
121 }
122
123 }
124 |
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