Revision 43521 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/DefaultInterpreter.java
| DefaultInterpreter.java | ||
|---|---|---|
| 13 | 13 |
|
| 14 | 14 |
public class DefaultInterpreter implements Interpreter {
|
| 15 | 15 |
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| 16 |
SymbolTable symbolTable = null; |
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private SymbolTable symbolTable = null; |
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| 17 |
private Double accuracy; |
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| 18 |
private Code currentCode; |
|
| 17 | 19 |
|
| 18 | 20 |
public DefaultInterpreter() {
|
| 19 | 21 |
this.symbolTable = SQLSymbolTable.getInstance(); |
| ... | ... | |
| 28 | 30 |
public SymbolTable getSymbolTable() {
|
| 29 | 31 |
return this.symbolTable; |
| 30 | 32 |
} |
| 31 |
|
|
| 32 | 33 |
@Override |
| 34 |
public Double getAccuracy() {
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return this.accuracy; |
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} |
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|
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@Override |
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public void setAccuracy(Double accuracy) {
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this.accuracy = accuracy; |
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} |
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|
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@Override |
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| 33 | 44 |
public Object run(Code code) {
|
| 34 | 45 |
try {
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| 35 | 46 |
return this.runCode(code); |
| ... | ... | |
| 49 | 60 |
if( caller.function() == null ) {
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| 50 | 61 |
caller.function(this.symbolTable.function(caller.name())); |
| 51 | 62 |
} |
| 52 |
if( caller.args()!=null ) {
|
|
| 63 |
if( caller.args() != null ) {
|
|
| 53 | 64 |
for( Code arg : caller.args() ) {
|
| 54 | 65 |
linkCode(arg); |
| 55 | 66 |
} |
| ... | ... | |
| 58 | 69 |
} |
| 59 | 70 |
|
| 60 | 71 |
private Object runCode(Code code) throws Exception {
|
| 72 |
this.currentCode = code; |
|
| 61 | 73 |
Object value = null; |
| 62 | 74 |
switch( code.code() ) {
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| 63 | 75 |
case Code.CONSTANT: |
| ... | ... | |
| 83 | 95 |
caller.function(function); |
| 84 | 96 |
} |
| 85 | 97 |
Arguments args = caller.args(); |
| 86 |
switch(caller.type()) {
|
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| 87 |
case Caller.UNARY_OPERATOR: |
|
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if( args==null || args.count()!=1 ) {
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throw new RuntimeException("Number of argument mistmatch, expected 1 got "+args.count()+".");
|
|
| 98 |
try {
|
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| 99 |
switch( caller.type() ) {
|
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case Caller.UNARY_OPERATOR: |
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if( args == null || args.count() != 1 ) {
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throw new RuntimeException("Number of argument mistmatch, expected 1 got " + args.count() + ".");
|
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} |
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value = ((UnaryOperator) function).call(this, runCode(args.get(0))); |
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break; |
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|
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case Caller.BINARY_OPERATOR: |
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if( args == null || args.count() != 2 ) {
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throw new RuntimeException("Number of argument mistmatch, expected 2 got " + args.count() + ".");
|
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| 110 |
} |
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value = ((BinaryOperator) function).call(this, runCode(args.get(0)), runCode(args.get(1))); |
|
| 112 |
break; |
|
| 113 |
|
|
| 114 |
case Caller.FUNCTION: |
|
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int argc = (args == null) ? 0 : args.count(); |
|
| 116 |
if( !function.argc().contains(argc) ) {
|
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| 117 |
throw new RuntimeException("Number of argument mistmatch, expected " + function.argc() + " got " + argc + ".");
|
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| 118 |
} |
|
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Object[] argvalues = new Object[argc]; |
|
| 120 |
if( args != null ) {
|
|
| 121 |
int i = 0; |
|
| 122 |
for( Code arg : args ) {
|
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| 123 |
argvalues[i++] = runCode(arg); |
|
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} |
|
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} |
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value = function.call(this, argvalues); |
|
| 90 | 127 |
} |
| 91 |
value = ((UnaryOperator)function).call(runCode(args.get(0)));
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break;
|
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| 93 |
|
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case Caller.BINARY_OPERATOR:
|
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| 95 |
if( args==null || args.count()!=2 ) {
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| 96 |
throw new RuntimeException("Number of argument mistmatch, expected 2 got "+args.count()+".");
|
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} catch (Exception ex) {
|
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| 129 |
String argsstr = "???";
|
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| 130 |
try {
|
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argsstr = args.toString();
|
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| 132 |
} catch(Exception ex2) {
|
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| 133 |
// Ignore.
|
|
| 97 | 134 |
} |
| 98 |
value = ((BinaryOperator)function).call(runCode(args.get(0)), runCode(args.get(1))); |
|
| 99 |
break; |
|
| 100 |
|
|
| 101 |
case Caller.FUNCTION: |
|
| 102 |
int argc = (args==null)? 0:args.count(); |
|
| 103 |
if( !function.argc().contains(argc) ) {
|
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| 104 |
throw new RuntimeException("Number of argument mistmatch, expected "+function.argc()+" got "+argc+".");
|
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| 105 |
} |
|
| 106 |
Object[] argvalues = new Object[argc]; |
|
| 107 |
if( args!=null ) {
|
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| 108 |
int i=0; |
|
| 109 |
for( Code arg : args) {
|
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| 110 |
argvalues[i++]=runCode(arg); |
|
| 111 |
} |
|
| 112 |
} |
|
| 113 |
value = function.call(argvalues); |
|
| 135 |
throw new RuntimeException("Problems calling function '"+function.name()+"' with args ("+argsstr+").", ex);
|
|
| 114 | 136 |
} |
| 115 | 137 |
} |
| 138 |
this.currentCode = null; |
|
| 116 | 139 |
return value; |
| 117 | 140 |
} |
| 141 |
|
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| 142 |
@Override |
|
| 143 |
public Code getCurrentCode() {
|
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| 144 |
return this.currentCode; |
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} |
|
| 118 | 146 |
} |
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