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1
30 package com.genimen.djeneric.tools.scriptengine.core.nodes;
31
32 import java.math.BigDecimal  ;
33 import java.util.Date ;
34 import java.util.HashMap ;
35
36 import com.genimen.djeneric.language.Messages;
37 import com.genimen.djeneric.repository.DjExtent;
38 import com.genimen.djeneric.repository.exceptions.ObjectNotDefinedException;
39 import com.genimen.djeneric.tools.scriptengine.core.DjScriptParserEngine;
40 import com.genimen.djeneric.tools.scriptengine.core.SimpleNode;
41 import com.genimen.djeneric.tools.scriptengine.core.util.DjScriptCompileTimeScope;
42 import com.genimen.djeneric.tools.scriptengine.core.util.DjScriptExecutionException;
43 import com.genimen.djeneric.tools.scriptengine.core.util.DjScriptExecutionTimeScope;
44 import com.genimen.djeneric.tools.scriptengine.core.util.Variable;
45
46 public class DeclarationNode extends SimpleNode
47 {
48
49 String _typeName;
50 String _variableName;
51
52 public DeclarationNode(int i)
53 {
54 super(i);
55 }
56
57 public DeclarationNode(DjScriptParserEngine p, int i)
58 {
59 super(p, i);
60 }
61
62 public String getName()
63 {
64 return _typeName + " " + _variableName;
65 }
66
67 public String toString()
68 {
69 return getName();
70 }
71
72 public String getTypeName()
73 {
74 return _typeName;
75 }
76
77 public String getVariableName()
78 {
79 return _variableName;
80 }
81
82 public void setTypeName(String string)
83 {
84 _typeName = string;
85 }
86
87 public void setVariableName(String string)
88 {
89 _variableName = string;
90 }
91
92 public void execute(DjScriptExecutionTimeScope ctxt) throws DjScriptExecutionException
93 {
94 ValueExpression valueExpression = null;
95 if (getChildCount() > 0) valueExpression = (ValueExpression) getChild(0);
96
97 Variable variable = createVariable(ctxt);
98
99 if (valueExpression != null) variable.assign(valueExpression.getValue(ctxt), this);
100
101 ctxt.pushVariable(variable);
102 }
103
104 private Variable createVariable(DjScriptCompileTimeScope ctxt) throws DjScriptExecutionException
105 {
106 Variable variable;
107
108 if (getTypeName().equals("int") || getTypeName().equals("Integer") || getTypeName().equals("long")
109 || getTypeName().equals("Long"))
110 {
111 variable = new Variable(getVariableName(), new Long (0));
112 }
113 else if (getTypeName().equals("BigDecimal") || getTypeName().equals("double") || getTypeName().equals("float"))
114 {
115 variable = new Variable(getVariableName(), new BigDecimal (0));
116 }
117 else if (getTypeName().equals("String"))
118 {
119 variable = new Variable(getVariableName(), "");
120 }
121 else if (getTypeName().equals("Boolean"))
122 {
123 variable = new Variable(getVariableName(), new Boolean (false));
124 }
125 else if (getTypeName().equals("Date") || getTypeName().equals("Timestamp"))
126 {
127 variable = new Variable(getVariableName(), new Date ());
128 }
129 else
130 {
132 try
133 {
134 DjExtent extent = ctxt.getPersistenceManager().getExtentByObjectType(getTypeName());
135 variable = new Variable(getVariableName(), null, extent.getName());
136 }
137 catch (ObjectNotDefinedException e)
138 {
139 throw new DjScriptExecutionException("Type " + getTypeName() + " is not defined", this);
140 }
141 }
142 return variable;
143 }
144
145 public void validateScript(DjScriptCompileTimeScope ctxt) throws DjScriptExecutionException
146 {
147 if (getTypeName().equals("int") || getTypeName().equals("Integer") || getTypeName().equals("long")
148 || getTypeName().equals("Long") || getTypeName().equals("BigDecimal") || getTypeName().equals("double")
149 || getTypeName().equals("float") || getTypeName().equals("String") || getTypeName().equals("Boolean")
150 || getTypeName().equals("Date") || getTypeName().equals("Timestamp")) return;
151 try
152 {
153 ctxt.getPersistenceManager().getExtentByObjectType(getTypeName());
154 }
155 catch (ObjectNotDefinedException e)
156 {
157 throw new DjScriptExecutionException(Messages.getString("DeclarationNode.Type", getTypeName()), this);
158 }
159 Variable variable = createVariable(ctxt);
160 ctxt.pushVariable(variable);
161 }
162
163 public void collectVariables(DjScriptCompileTimeScope ctxt, HashMap variables, int stopAtLine)
164 throws DjScriptExecutionException
165 {
166 if (stopAtLine >= 0 && getLine() > stopAtLine) return;
167
168 variables.put(_variableName, _typeName);
169 }
170
171 } |
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