1   /*
2    * Copyright 1999-2004 The Apache Software Foundation
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *     http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.apache.commons.jxpath.ri.compiler;
17  
18  import java.util.ArrayList;
19  import java.util.Collection;
20  import java.util.Iterator;
21  import java.util.Map;
22  
23  import org.apache.commons.jxpath.BasicNodeSet;
24  import org.apache.commons.jxpath.ExpressionContext;
25  import org.apache.commons.jxpath.JXPathContext;
26  import org.apache.commons.jxpath.NestedTestBean;
27  import org.apache.commons.jxpath.Pointer;
28  import org.apache.commons.jxpath.NodeSet;
29  
30  /***
31   * @author Dmitri Plotnikov
32   * @version $Revision: 1.10 $ $Date: 2004/03/25 05:42:01 $
33   */
34  public class TestFunctions {
35  
36      private int foo;
37      private String bar;
38  
39      public TestFunctions() {
40      }
41  
42      public TestFunctions(int foo, String bar) {
43          this.foo = foo;
44          this.bar = bar;
45      }
46  
47      public TestFunctions(ExpressionContext context, String bar) {
48          this.foo =
49              ((Number) context.getContextNodePointer().getValue()).intValue();
50          this.bar = bar;
51      }
52      
53      public TestFunctions(int foo, Object object, boolean another) {
54          this.foo = foo;
55          bar = String.valueOf(object);
56      }
57  
58      public int getFoo() {
59          return foo;
60      }
61  
62      public String getBar() {
63          return bar;
64      }
65  
66      public void doit() {
67      }
68  
69      public TestFunctions setFooAndBar(int foo, String bar) {
70          this.foo = foo;
71          this.bar = bar;
72          return this;
73      }
74  
75      public static TestFunctions build(int foo, String bar) {
76          return new TestFunctions(foo, bar);
77      }
78  
79      public String toString() {
80          return "foo=" + foo + "; bar=" + bar;
81      }
82  
83      public static String path(ExpressionContext context) {
84          return context.getContextNodePointer().asPath();
85      }
86  
87      public String instancePath(ExpressionContext context) {
88          return context.getContextNodePointer().asPath();
89      }
90  
91      public String pathWithSuffix(ExpressionContext context, String suffix) {
92          return context.getContextNodePointer().asPath() + suffix;
93      }
94  
95      public String className(
96          ExpressionContext context,
97          ExpressionContext child) 
98      {
99          return context.getContextNodePointer().asPath();
100     }
101 
102     /***
103      * Returns true if the current node in the current context is a map
104      */
105     public static boolean isMap(ExpressionContext context) {
106         Pointer ptr = context.getContextNodePointer();
107         return ptr == null ? false : (ptr.getValue() instanceof Map);
108     }
109 
110     /***
111      * Returns the number of nodes in the context that is passed as
112      * the first argument.
113      */
114     public static int count(ExpressionContext context, Collection col) {
115         for (Iterator iter = col.iterator(); iter.hasNext();) {
116             Object element = iter.next();
117             if (!(element instanceof String)) {
118                 throw new RuntimeException("Invalid argument");
119             }
120         };
121         return col.size();
122     }
123     
124     public static int countPointers(NodeSet nodeSet) {
125         return nodeSet.getPointers().size();
126     }
127     
128     public static String string(String string) {
129         return string;
130     }
131     
132     public static Collection collection() {
133         ArrayList list = new ArrayList();
134         list.add(new NestedTestBean("foo"));
135         list.add(new NestedTestBean("bar"));
136         return list;
137     }
138     
139     public static NodeSet nodeSet(ExpressionContext context) {
140         JXPathContext jxpathCtx = context.getJXPathContext();
141         BasicNodeSet set = new BasicNodeSet();
142         set.add(jxpathCtx.getPointer("/beans[1]"));
143         set.add(jxpathCtx.getPointer("/beans[2]"));
144         
145         return set;
146     }
147     
148     public static Collection items(Collection arg) {
149         return arg;
150     }
151 }