svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.expressionevaluator / org.gvsig.expressionevaluator.lib / org.gvsig.expressionevaluator.lib.impl / src / main / java / org / gvsig / expressionevaluator / impl / DefaultExpressionEvaluatorManager.java @ 43983
History | View | Annotate | Download (3.62 KB)
| 1 | 43521 | jjdelcerro | package org.gvsig.expressionevaluator.impl; |
|---|---|---|---|
| 2 | |||
| 3 | 43983 | jjdelcerro | import java.util.Collection; |
| 4 | 43939 | jjdelcerro | import java.util.HashMap; |
| 5 | import java.util.Map; |
||
| 6 | 43521 | jjdelcerro | import org.gvsig.expressionevaluator.Code; |
| 7 | import org.gvsig.expressionevaluator.CodeBuilder; |
||
| 8 | import org.gvsig.expressionevaluator.Compiler; |
||
| 9 | 43983 | jjdelcerro | import org.gvsig.expressionevaluator.Expression; |
| 10 | 43521 | jjdelcerro | import org.gvsig.expressionevaluator.ExpressionEvaluatorManager; |
| 11 | import org.gvsig.expressionevaluator.Interpreter; |
||
| 12 | import org.gvsig.expressionevaluator.LexicalAnalyzer; |
||
| 13 | import org.gvsig.expressionevaluator.MutableSymbolTable; |
||
| 14 | import org.gvsig.expressionevaluator.SymbolTable; |
||
| 15 | 43983 | jjdelcerro | import org.gvsig.expressionevaluator.impl.symboltable.OGCSymbolTable; |
| 16 | import org.gvsig.expressionevaluator.impl.symboltable.SQLSymbolTable; |
||
| 17 | 43521 | jjdelcerro | |
| 18 | |||
| 19 | public class DefaultExpressionEvaluatorManager implements ExpressionEvaluatorManager { |
||
| 20 | |||
| 21 | private Double accuracy; |
||
| 22 | 43983 | jjdelcerro | private final Map<String,SymbolTable>symbolTables; |
| 23 | 43521 | jjdelcerro | |
| 24 | public DefaultExpressionEvaluatorManager() {
|
||
| 25 | 43983 | jjdelcerro | this.symbolTables = new HashMap<>(); |
| 26 | this.registerSymbolTable(new SQLSymbolTable()); |
||
| 27 | this.registerSymbolTable(new OGCSymbolTable()); |
||
| 28 | 43939 | jjdelcerro | } |
| 29 | |||
| 30 | 43521 | jjdelcerro | @Override
|
| 31 | 43983 | jjdelcerro | public SymbolTable getSymbolTable(String name) { |
| 32 | return this.symbolTables.get(name.toUpperCase()); |
||
| 33 | 43939 | jjdelcerro | } |
| 34 | |||
| 35 | @Override
|
||
| 36 | 43983 | jjdelcerro | public Collection<SymbolTable> getSymbolTables() { |
| 37 | return this.symbolTables.values(); |
||
| 38 | 43939 | jjdelcerro | } |
| 39 | |||
| 40 | @Override
|
||
| 41 | 43983 | jjdelcerro | public final void registerSymbolTable(SymbolTable symbolTable) { |
| 42 | this.symbolTables.put(symbolTable.getName().toUpperCase(),symbolTable);
|
||
| 43 | 43939 | jjdelcerro | } |
| 44 | |||
| 45 | @Override
|
||
| 46 | 43521 | jjdelcerro | public Object evaluate(String source) { |
| 47 | DefaultInterpreter interpreter = new DefaultInterpreter();
|
||
| 48 | DefaultCompiler compiler = new DefaultCompiler();
|
||
| 49 | Code code = compiler.compileExpression(source); |
||
| 50 | return interpreter.run(code);
|
||
| 51 | } |
||
| 52 | |||
| 53 | @Override
|
||
| 54 | public Object evaluate(SymbolTable symbolTable, String source) { |
||
| 55 | DefaultInterpreter interpreter = new DefaultInterpreter();
|
||
| 56 | DefaultCompiler compiler = new DefaultCompiler();
|
||
| 57 | Code code = compiler.compileExpression(source); |
||
| 58 | interpreter.setSymbolTable(symbolTable); |
||
| 59 | return interpreter.run(code);
|
||
| 60 | } |
||
| 61 | |||
| 62 | @Override
|
||
| 63 | public Object evaluate(SymbolTable symbolTable, Code code) { |
||
| 64 | DefaultInterpreter interpreter = new DefaultInterpreter();
|
||
| 65 | interpreter.setSymbolTable(symbolTable); |
||
| 66 | return interpreter.run(code);
|
||
| 67 | } |
||
| 68 | |||
| 69 | @Override
|
||
| 70 | public Code compile(String source) { |
||
| 71 | DefaultCompiler compiler = new DefaultCompiler();
|
||
| 72 | return compiler.compileExpression(source);
|
||
| 73 | } |
||
| 74 | |||
| 75 | @Override
|
||
| 76 | public Code compile(LexicalAnalyzer lex, String source) { |
||
| 77 | DefaultCompiler compiler = new DefaultCompiler();
|
||
| 78 | compiler.setLexicalAnalyzer(lex); |
||
| 79 | return compiler.compileExpression(source);
|
||
| 80 | } |
||
| 81 | |||
| 82 | @Override
|
||
| 83 | public MutableSymbolTable createSymbolTable() {
|
||
| 84 | return new DefaultSymbolTable(); |
||
| 85 | } |
||
| 86 | 43939 | jjdelcerro | |
| 87 | 43521 | jjdelcerro | @Override
|
| 88 | public LexicalAnalyzer createLexicalAnalyzer() {
|
||
| 89 | return new SQLLexicalAnalyzer(); |
||
| 90 | } |
||
| 91 | |||
| 92 | @Override
|
||
| 93 | public CodeBuilder createCodeBuilder() {
|
||
| 94 | return new DefaultCodeBuilder(); |
||
| 95 | } |
||
| 96 | |||
| 97 | @Override
|
||
| 98 | public Compiler createCompiler() { |
||
| 99 | return new DefaultCompiler(); |
||
| 100 | } |
||
| 101 | |||
| 102 | @Override
|
||
| 103 | public Interpreter createInterpreter() {
|
||
| 104 | return new DefaultInterpreter(); |
||
| 105 | } |
||
| 106 | |||
| 107 | @Override
|
||
| 108 | public Double getAccuracy() { |
||
| 109 | return this.accuracy; |
||
| 110 | } |
||
| 111 | |||
| 112 | @Override
|
||
| 113 | public void setAccuracy(Double accuracy) { |
||
| 114 | this.accuracy = accuracy;
|
||
| 115 | } |
||
| 116 | 43983 | jjdelcerro | |
| 117 | @Override
|
||
| 118 | public Expression createExpression() { |
||
| 119 | DefaultExpression e = new DefaultExpression();
|
||
| 120 | return e;
|
||
| 121 | } |
||
| 122 | |||
| 123 | 43521 | jjdelcerro | } |