package org.drools.rule.builder.dialect.java;
import java.util.Set;
import junit.framework.TestCase;
import org.drools.compiler.Dialect;
import org.drools.compiler.DialectRegistry;
import org.drools.compiler.PackageBuilder;
import org.drools.compiler.PackageBuilderConfiguration;
import org.drools.lang.descr.AccumulateDescr;
import org.drools.lang.descr.DescrFactory;
import org.drools.lang.descr.FieldBindingDescr;
import org.drools.lang.descr.PatternDescr;
import org.drools.lang.descr.RuleDescr;
import org.drools.rule.Accumulate;
import org.drools.rule.builder.RuleBuildContext;
public class JavaAccumulateBuilderTest extends TestCase {
private JavaAccumulateBuilder builder;
protected void setUp() throws Exception {
super.setUp();
builder = new JavaAccumulateBuilder();
}
protected void tearDown() throws Exception {
super.tearDown();
}
public void testBuildRuleBuildContextBaseDescr() {
// $total : Integer() from accumulate( Cheese( $price : price ) init( int x = 0; ) action( x += $price ) result( new Integer( x ) ) )
AccumulateDescr accumDescr = new DescrFactory().createAccumulate();
FieldBindingDescr price = new FieldBindingDescr( "price", "$price" );
PatternDescr cheeseDescr = new PatternDescr( "org.drools.Cheese" );
cheeseDescr.addConstraint( price );
accumDescr.setInputPattern( cheeseDescr );
accumDescr.setInitCode( "int x = 0;" );
accumDescr.setActionCode( "x += $price;" );
accumDescr.setResultCode( "new Integer( x )" );
org.drools.rule.Package pkg = new org.drools.rule.Package( "org.drools" );
final PackageBuilder pkgBulider = new PackageBuilder(pkg);
final PackageBuilderConfiguration conf = pkgBulider.getPackageBuilderConfiguration();
Dialect dialect = pkgBulider.getPackageBuilderConfiguration().getDialectRegistry().getDialectConfiguration( "java" ).getDialect();
RuleDescr ruleDescr = new RuleDescr("test rule");
RuleBuildContext context = new RuleBuildContext( conf, pkg, ruleDescr, conf.getDialectRegistry(), dialect);
Accumulate accumulate = (Accumulate) builder.build( context, accumDescr );
assertTrue( context.getErrors().toString(), context.getErrors().isEmpty() );
// System.out.println( context.getInvokers() );
// System.out.println( context.getMethods() );
}
public void testFixInitCode() throws Exception {
JavaExprAnalyzer analyzer = new JavaExprAnalyzer();
JavaAccumulateBuilder builder = new JavaAccumulateBuilder();
String code = "int x = 0;";
String expected = "x = 0;";
JavaAnalysisResult analysis = analyzer.analyzeBlock( code, new Set[0]);
String result = builder.fixInitCode( analysis, code );
assertEquals( expected, result );
code = "$anExternalVar.method(); \nint aVar = 0, anotherVar=10 ;Integer bla = new Integer( 25);functionCall();\n";
expected = "$anExternalVar.method(); \naVar = 0;anotherVar=10;bla = new Integer( 25);functionCall();\n";;
analysis = analyzer.analyzeBlock( code, new Set[0]);
result = builder.fixInitCode( analysis, code );
assertEquals( expected, result );
code = "$anExternalVar.method(); String[] aVar = new String[] { \"a\", \"b\" }, anotherVar=new String[] { someStringVar } ;final Integer bla = new Integer( 25);functionCall();\n";
expected = "$anExternalVar.method(); aVar = new String[] { \"a\", \"b\" };anotherVar=new String[] { someStringVar };bla = new Integer( 25);functionCall();\n";
analysis = analyzer.analyzeBlock( code, new Set[0]);
result = builder.fixInitCode( analysis, code );
assertEquals( expected, result );
}
}