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1
52
53 package freemarker.core;
54
55 import freemarker.template.*;
56 import freemarker.template.utility.StringUtil;
57 import java.util.List  ;
58
59
62
63 abstract class NodeBuiltins {
64
65 abstract static class NodeBuiltIn extends BuiltIn {
66 TemplateModel _getAsTemplateModel(Environment env)
67 throws TemplateException
68 {
69 TemplateModel model = target.getAsTemplateModel(env);
70 if (!(model instanceof TemplateNodeModel)) {
71 throw invalidTypeException(model, target, env, "node model");
72 }
73 return calculateResult((TemplateNodeModel) model, env);
74 }
75 abstract TemplateModel calculateResult(TemplateNodeModel nodeModel, Environment env)
76 throws TemplateModelException;
77 }
78
79 static class ancestorsBI extends NodeBuiltIn {
80 TemplateModel calculateResult(TemplateNodeModel nodeModel, Environment env) throws TemplateModelException {
81 AncestorSequence result = new AncestorSequence(env);
82 TemplateNodeModel parent = nodeModel.getParentNode();
83 while (parent != null) {
84 result.add(parent);
85 parent = parent.getParentNode();
86 }
87 return result;
88 }
89 }
90
91 static class childrenBI extends NodeBuiltIn {
92 TemplateModel calculateResult(TemplateNodeModel nodeModel, Environment env) throws TemplateModelException {
93 return nodeModel.getChildNodes();
94 }
95 }
96
97
98 static class node_nameBI extends NodeBuiltIn {
99 TemplateModel calculateResult(TemplateNodeModel nodeModel, Environment env) throws TemplateModelException {
100 return new SimpleScalar(nodeModel.getNodeName());
101 }
102 }
103
104 static class node_typeBI extends NodeBuiltIn {
105 TemplateModel calculateResult(TemplateNodeModel nodeModel, Environment env) throws TemplateModelException {
106 return new SimpleScalar(nodeModel.getNodeType());
107 }
108 }
109
110 static class parentBI extends NodeBuiltIn {
111 TemplateModel calculateResult(TemplateNodeModel nodeModel, Environment env) throws TemplateModelException {
112 return nodeModel.getParentNode();
113 }
114 }
115
116 static class rootBI extends NodeBuiltIn {
117 TemplateModel calculateResult(TemplateNodeModel nodeModel, Environment env) throws TemplateModelException {
118 TemplateNodeModel result = nodeModel;
119 TemplateNodeModel parent = nodeModel.getParentNode();
120 while (parent != null) {
121 result = parent;
122 parent = result.getParentNode();
123 }
124 return result;
125 }
126 }
127
128 static class node_namespaceBI extends NodeBuiltIn {
129 TemplateModel calculateResult(TemplateNodeModel nodeModel, Environment env) throws TemplateModelException {
130 String nsURI = nodeModel.getNodeNamespace();
131 return nsURI == null ? null : new SimpleScalar(nsURI);
132 }
133 }
134
135
136 static class AncestorSequence extends SimpleSequence implements TemplateMethodModel {
137
138 private Environment env;
139
140 AncestorSequence(Environment env) {
141 this.env = env;
142 }
143
144 public Object exec(List names) throws TemplateModelException {
145 if (names == null || names.isEmpty()) {
146 return this;
147 }
148 AncestorSequence result = new AncestorSequence(env);
149 for (int i=0; i<size(); i++) {
150 TemplateNodeModel tnm = (TemplateNodeModel) get(i);
151 String nodeName = tnm.getNodeName();
152 String nsURI = tnm.getNodeNamespace();
153 if (nsURI == null) {
154 if (names.contains(nodeName)) {
155 result.add(tnm);
156 }
157 } else {
158 for (int j = 0; j<names.size(); j++) {
159 if (StringUtil.matchesName((String ) names.get(j), nodeName, nsURI, env)) {
160 result.add(tnm);
161 break;
162 }
163 }
164 }
165 }
166 return result;
167 }
168 }
169 } |
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