1 | |
|
2 | |
|
3 | |
|
4 | |
|
5 | |
|
6 | |
|
7 | |
|
8 | |
|
9 | |
|
10 | |
|
11 | |
|
12 | |
|
13 | |
|
14 | |
|
15 | |
|
16 | |
|
17 | |
|
18 | |
|
19 | |
|
20 | |
|
21 | |
|
22 | |
|
23 | |
|
24 | |
|
25 | |
|
26 | |
|
27 | |
|
28 | |
|
29 | |
|
30 | |
|
31 | |
|
32 | |
|
33 | |
|
34 | |
|
35 | |
|
36 | |
|
37 | |
|
38 | |
|
39 | |
|
40 | |
|
41 | |
|
42 | |
|
43 | |
|
44 | |
|
45 | |
|
46 | |
|
47 | |
|
48 | |
|
49 | |
package org.jaxen.expr; |
50 | |
|
51 | |
import java.util.ArrayList; |
52 | |
import java.util.Iterator; |
53 | |
import java.util.List; |
54 | |
|
55 | |
import org.jaxen.Context; |
56 | |
import org.jaxen.Function; |
57 | |
import org.jaxen.JaxenException; |
58 | |
|
59 | |
|
60 | |
|
61 | |
|
62 | |
|
63 | |
public class DefaultFunctionCallExpr extends DefaultExpr implements FunctionCallExpr |
64 | |
{ |
65 | |
|
66 | |
|
67 | |
|
68 | |
private static final long serialVersionUID = -4747789292572193708L; |
69 | |
private String prefix; |
70 | |
private String functionName; |
71 | |
private List parameters; |
72 | |
|
73 | |
public DefaultFunctionCallExpr(String prefix, String functionName) |
74 | 2644 | { |
75 | 2644 | this.prefix = prefix; |
76 | 2644 | this.functionName = functionName; |
77 | 2644 | this.parameters = new ArrayList(); |
78 | 2644 | } |
79 | |
|
80 | |
public void addParameter(Expr parameter) |
81 | |
{ |
82 | 3022 | this.parameters.add(parameter); |
83 | 3022 | } |
84 | |
|
85 | |
|
86 | |
public List getParameters() |
87 | |
{ |
88 | 10090 | return this.parameters; |
89 | |
} |
90 | |
|
91 | |
public String getPrefix() |
92 | |
{ |
93 | 11708 | return this.prefix; |
94 | |
} |
95 | |
|
96 | |
public String getFunctionName() |
97 | |
{ |
98 | 7468 | return this.functionName; |
99 | |
} |
100 | |
|
101 | |
|
102 | |
public String getText() |
103 | |
{ |
104 | 1084 | StringBuffer buf = new StringBuffer(); |
105 | 1084 | String prefix = getPrefix(); |
106 | |
|
107 | 1084 | if (prefix != null && |
108 | |
prefix.length() > 0) |
109 | |
{ |
110 | 0 | buf.append(prefix); |
111 | 0 | buf.append(":"); |
112 | |
} |
113 | |
|
114 | 1084 | buf.append(getFunctionName()); |
115 | 1084 | buf.append("("); |
116 | |
|
117 | 1084 | Iterator paramIter = getParameters().iterator(); |
118 | |
|
119 | 2282 | while (paramIter.hasNext()) { |
120 | 1198 | Expr eachParam = (Expr) paramIter.next(); |
121 | |
|
122 | 1198 | buf.append(eachParam.getText()); |
123 | |
|
124 | 1198 | if (paramIter.hasNext()) |
125 | |
{ |
126 | 392 | buf.append(", "); |
127 | |
} |
128 | 1198 | } |
129 | |
|
130 | 1084 | buf.append(")"); |
131 | |
|
132 | 1084 | return buf.toString(); |
133 | |
} |
134 | |
|
135 | |
public Expr simplify() |
136 | |
{ |
137 | 2628 | List paramExprs = getParameters(); |
138 | 2628 | int paramSize = paramExprs.size(); |
139 | |
|
140 | 2628 | List newParams = new ArrayList(paramSize); |
141 | |
|
142 | 5642 | for (int i = 0; i < paramSize; ++i) |
143 | |
{ |
144 | 3014 | Expr eachParam = (Expr) paramExprs.get(i); |
145 | |
|
146 | 3014 | newParams.add(eachParam.simplify()); |
147 | |
} |
148 | |
|
149 | 2628 | this.parameters = newParams; |
150 | |
|
151 | 2628 | return this; |
152 | |
} |
153 | |
|
154 | |
|
155 | |
public String toString() |
156 | |
{ |
157 | 0 | String prefix = getPrefix(); |
158 | |
|
159 | 0 | if (prefix == null) |
160 | |
{ |
161 | 0 | return "[(DefaultFunctionCallExpr): " + getFunctionName() + "(" + getParameters() + ") ]"; |
162 | |
} |
163 | |
|
164 | 0 | return "[(DefaultFunctionCallExpr): " + getPrefix() + ":" + getFunctionName() + "(" + getParameters() + ") ]"; |
165 | |
} |
166 | |
|
167 | |
public Object evaluate(Context context) throws JaxenException |
168 | |
{ |
169 | 4240 | String namespaceURI = |
170 | |
context.translateNamespacePrefixToUri(getPrefix()); |
171 | |
|
172 | 4240 | Function func = context.getFunction(namespaceURI, |
173 | |
getPrefix(), |
174 | |
getFunctionName()); |
175 | 4234 | List paramValues = evaluateParams(context); |
176 | |
|
177 | 4234 | return func.call(context, paramValues); |
178 | |
} |
179 | |
|
180 | |
public List evaluateParams(Context context) throws JaxenException |
181 | |
{ |
182 | 4234 | List paramExprs = getParameters(); |
183 | 4234 | int paramSize = paramExprs.size(); |
184 | |
|
185 | 4234 | List paramValues = new ArrayList(paramSize); |
186 | |
|
187 | 6682 | for (int i = 0; i < paramSize; ++i) |
188 | |
{ |
189 | 2448 | Expr eachParam = (Expr) paramExprs.get(i); |
190 | |
|
191 | 2448 | Object eachValue = eachParam.evaluate(context); |
192 | |
|
193 | 2448 | paramValues.add(eachValue); |
194 | |
} |
195 | 4234 | return paramValues; |
196 | |
} |
197 | |
|
198 | |
} |
199 | |
|