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18 package org.apache.any23.extractor.xpath;
19
20 import java.util.Locale;
21
22 import org.eclipse.rdf4j.model.Value;
23 import org.eclipse.rdf4j.model.impl.SimpleValueFactory;
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30 public class TemplateObject extends Term {
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35 public enum Type {
36 URI, BNODE, LITERAL
37 }
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42 private final Type type;
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54 public TemplateObject(Type type, String value, boolean isVar) {
55 super(value, isVar);
56 if (type == null) {
57 throw new NullPointerException("object type cannot be null.");
58 }
59 this.type = type;
60 }
61
62 @Override
63 protected Value getValueInternal(String value) {
64 switch (type) {
65 case URI:
66 return createIRI(value);
67 case BNODE:
68 return SimpleValueFactory.getInstance().createBNode(value);
69 case LITERAL:
70 return SimpleValueFactory.getInstance().createLiteral(value);
71 default:
72 throw new IllegalStateException();
73 }
74 }
75
76 private Value createIRI(String value) {
77 try {
78 return SimpleValueFactory.getInstance().createIRI(value);
79 } catch (IllegalArgumentException iae) {
80 throw new IllegalArgumentException(
81 String.format(Locale.ROOT, "Expected a valid IRI for object template, found '%s'", value), iae);
82 }
83 }
84
85 @Override
86 public String toString() {
87 final String superStr = super.toString();
88 switch (type) {
89 case URI:
90 return "<" + superStr + ">";
91 case BNODE:
92 return "_:" + superStr;
93 case LITERAL:
94 return "'" + superStr + "'";
95 default:
96 throw new IllegalStateException();
97 }
98 }
99
100 }