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18 package org.objectweb.medor.expression.lib;
19
20 import org.objectweb.medor.expression.api.Expression;
21 import org.objectweb.medor.expression.api.Operand;
22 import org.objectweb.medor.expression.api.ParameterOperand;
23 import org.objectweb.medor.expression.api.ExpressionException;
24 import org.objectweb.medor.expression.api.MalformedExpressionException;
25 import org.objectweb.medor.expression.api.TypingException;
26 import org.objectweb.jorm.type.api.PType;
27 import org.objectweb.jorm.type.api.PTypeSpace;
28
29
34 public class StringUpper extends BasicUnaryOperator {
35
36 public StringUpper() {
37 super(PTypeSpace.STRING);
38 }
39 public StringUpper(Expression strOperand) {
40 super(PTypeSpace.STRING, strOperand);
41 }
42
43 public String  getOperatorString() {
44 return STRING_UPPER;
45 }
46
47 public Operand evaluate(ParameterOperand[] pos, Object o)
48 throws ExpressionException {
49 if (expressions[0] == null) {
50 throw new MalformedExpressionException("Null children value");
51 }
52 if (result == null) {
53 throw new ExpressionException("Expression not compiled");
54 }
55 result.setValue(
56 evaluate(getExpression(0).evaluate(pos, o).getString()));
57 return result;
58 }
59
60 public Operand compileExpression()
61 throws ExpressionException, MalformedExpressionException {
62 if (expressions[0] == null) {
63 throw new MalformedExpressionException("Null children value");
64 }
65 expressions[0].compileExpression();
66 PType opType = expressions[0].getType();
67 if (opType == null) {
68 throw new TypingException("Argument type not defined (null)");
69 }
70 if (opType.getTypeCode() != PType.TYPECODE_STRING) {
71 throw new TypingException("Bad Argument type, expected String, found: "
72 + expressions[0].getType().getJavaName());
73 }
74 result = new BasicVariableOperand(type);
75 verified = true;
76 return result;
77 }
78
79 public String evaluate(String str) {
80 return (str == null ? null : str.toUpperCase());
81 }
82 }
83 |
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