Package org.drools.core.rule.builder.dialect.asm

Examples of org.drools.core.rule.builder.dialect.asm.ClassGenerator

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    public static ClassGenerator createInvokerClassGenerator(final String className,
                                                              final InvokerDataProvider data,
                                                              final ClassLoader classLoader,
                                                              final TypeResolver typeResolver) {
        final ClassGenerator generator = new ClassGenerator(className, classLoader, typeResolver)
                .addStaticField(ACC_PRIVATE + ACC_FINAL, "serialVersionUID", Long.TYPE, INVOKER_SERIAL_UID)
                .addDefaultConstructor();

        generator.addMethod(ACC_PUBLIC, "hashCode", generator.methodDescr(Integer.TYPE), new ClassGenerator.MethodBody() {
            public void body(MethodVisitor mv) {
                push(data.hashCode());
                mv.visitInsn(IRETURN);
            }
        })
        .addMethod(ACC_PUBLIC, "getMethodBytecode", generator.methodDescr(List.class), new GetMethodBytecodeMethod(data))
        .addMethod(ACC_PUBLIC, "equals", generator.methodDescr(Boolean.TYPE, Object.class), new EqualsMethod());

        return generator;
    }
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import static org.mvel2.asm.Opcodes.IASTORE;

public class ASMConditionEvaluatorJitter {

    public static ConditionEvaluator jitEvaluator(String expression, Condition condition, Declaration[] declarations, ClassLoader classLoader, LeftTuple leftTuple) {
        ClassGenerator generator = new ClassGenerator(getUniqueClassName(), classLoader)
                .setInterfaces(ConditionEvaluator.class)
                .addStaticField(ACC_PRIVATE | ACC_FINAL, "EXPRESSION", String.class, expression)
                .addField(ACC_PRIVATE | ACC_FINAL, "declarations", Declaration[].class)
                .addDefaultConstructor(new ClassGenerator.MethodBody() {
                    public void body(MethodVisitor mv) {
                        putFieldInThisFromRegistry("declarations", Declaration[].class, 1);
                        mv.visitInsn(RETURN);
                    }
                }, Declaration[].class);

        generator.addMethod(ACC_PUBLIC,
                            "evaluate",
                            generator.methodDescr(boolean.class, Object.class, InternalWorkingMemory.class, LeftTuple.class),
                            new EvaluateMethodGenerator(condition, declarations, leftTuple));

        return generator.newInstance(Declaration[].class, declarations);
    }
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public class ASMPredicateStubBuilder extends AbstractASMPredicateBuilder {

    protected byte[] createPredicateBytecode(final RuleBuildContext ruleContext, final Map vars) {
        final InvokerDataProvider data = new InvokerContext(vars);
        final ClassGenerator generator = InvokerGenerator.createInvokerStubGenerator(data, ruleContext);
        createStubPredicate(generator, data, vars);
        return generator.generateBytecode();
    }
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public class ASMEvalStubBuilder extends AbstractASMEvalBuilder {

    protected byte[] createEvalBytecode(final RuleBuildContext ruleContext, final Map vars) {
        final InvokerDataProvider data = new InvokerContext(vars);
        final ClassGenerator generator = InvokerGenerator.createInvokerStubGenerator(data, ruleContext);
        createStubEval(generator, data, vars);
        return generator.generateBytecode();
    }
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        if (isOr(ruleContext.getRule().getLhs())) {
            return super.createConsequenceBytecode(ruleContext, consequenceContext);
        }

        final InvokerDataProvider data = new InvokerContext(consequenceContext);
        final ClassGenerator generator = InvokerGenerator.createInvokerStubGenerator(data, ruleContext);
        createStubConsequence(generator, data, consequenceContext);
        return generator.generateBytecode();
    }
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public class ASMReturnValueStubBuilder extends AbstractASMReturnValueBuilder {

    protected byte[] createReturnValueBytecode(RuleBuildContext ruleContext, Map vars, boolean readLocalsFromTuple) {
        final InvokerDataProvider data = new InvokerContext(vars);
        final ClassGenerator generator = InvokerGenerator.createInvokerStubGenerator(data, ruleContext);
        createStubReturnValue(generator, data, vars);
        return generator.generateBytecode();
    }
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import static org.mvel2.asm.Opcodes.*;

public class ASMConditionEvaluatorJitter {

    public static ConditionEvaluator jitEvaluator(String expression, Condition condition, Declaration[] declarations, ClassLoader classLoader, LeftTuple leftTuple) {
        ClassGenerator generator = new ClassGenerator(getUniqueClassName(), classLoader)
                .setInterfaces(ConditionEvaluator.class)
                .addStaticField(ACC_PRIVATE | ACC_FINAL, "EXPRESSION", String.class, expression)
                .addField(ACC_PRIVATE | ACC_FINAL, "declarations", Declaration[].class)
                .addDefaultConstructor(new ClassGenerator.MethodBody() {
                    public void body(MethodVisitor mv) {
                        putFieldInThisFromRegistry("declarations", Declaration[].class, 1);
                        mv.visitInsn(RETURN);
                    }
                }, Declaration[].class);

        generator.addMethod(ACC_PUBLIC,
                            "evaluate",
                            generator.methodDescr(boolean.class, InternalFactHandle.class, InternalWorkingMemory.class, LeftTuple.class),
                            new EvaluateMethodGenerator(condition, declarations, leftTuple));

        return generator.newInstance(Declaration[].class, declarations);
    }
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import static org.mvel2.asm.Opcodes.*;

public class ASMConditionEvaluatorJitter {

    public static ConditionEvaluator jitEvaluator(String expression, Condition condition, Declaration[] declarations, ClassLoader classLoader, LeftTuple leftTuple) {
        ClassGenerator generator = new ClassGenerator(getUniqueClassName(), classLoader)
                .setInterfaces(ConditionEvaluator.class)
                .addStaticField(ACC_PRIVATE | ACC_FINAL, "EXPRESSION", String.class, expression)
                .addField(ACC_PRIVATE | ACC_FINAL, "declarations", Declaration[].class)
                .addDefaultConstructor(new ClassGenerator.MethodBody() {
                    public void body(MethodVisitor mv) {
                        putFieldInThisFromRegistry("declarations", Declaration[].class, 1);
                        mv.visitInsn(RETURN);
                    }
                }, Declaration[].class);

        generator.addMethod(ACC_PUBLIC,
                            "evaluate",
                            generator.methodDescr(boolean.class, InternalFactHandle.class, InternalWorkingMemory.class, LeftTuple.class),
                            new EvaluateMethodGenerator(condition, declarations, leftTuple));

        return generator.newInstance(Declaration[].class, declarations);
    }
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import static org.mvel2.asm.Opcodes.IASTORE;

public class ASMConditionEvaluatorJitter {

    public static ConditionEvaluator jitEvaluator(String expression, Condition condition, Declaration[] declarations, ClassLoader classLoader, LeftTuple leftTuple) {
        ClassGenerator generator = new ClassGenerator(getUniqueClassName(), classLoader)
                .setInterfaces(ConditionEvaluator.class)
                .addStaticField(ACC_PRIVATE | ACC_FINAL, "EXPRESSION", String.class, expression)
                .addField(ACC_PRIVATE | ACC_FINAL, "declarations", Declaration[].class)
                .addDefaultConstructor(new ClassGenerator.MethodBody() {
                    public void body(MethodVisitor mv) {
                        putFieldInThisFromRegistry("declarations", Declaration[].class, 1);
                        mv.visitInsn(RETURN);
                    }
                }, Declaration[].class);

        generator.addMethod(ACC_PUBLIC,
                            "evaluate",
                            generator.methodDescr(boolean.class, InternalFactHandle.class, InternalWorkingMemory.class, LeftTuple.class),
                            new EvaluateMethodGenerator(condition, declarations, leftTuple));

        return generator.newInstance(Declaration[].class, declarations);
    }
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    public static ClassGenerator createInvokerClassGenerator(final String className,
                                                              final InvokerDataProvider data,
                                                              final ClassLoader classLoader,
                                                              final TypeResolver typeResolver) {
        final ClassGenerator generator = new ClassGenerator(className, classLoader, typeResolver)
                .addStaticField(ACC_PRIVATE + ACC_FINAL, "serialVersionUID", Long.TYPE, INVOKER_SERIAL_UID)
                .addDefaultConstructor();

        generator.addMethod(ACC_PUBLIC, "hashCode", generator.methodDescr(Integer.TYPE), new ClassGenerator.MethodBody() {
            public void body(MethodVisitor mv) {
                push(data.hashCode());
                mv.visitInsn(IRETURN);
            }
        })
        .addMethod(ACC_PUBLIC, "getMethodBytecode", generator.methodDescr(List.class), new GetMethodBytecodeMethod(data))
        .addMethod(ACC_PUBLIC, "equals", generator.methodDescr(Boolean.TYPE, Object.class), new EqualsMethod());

        return generator;
    }
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Related Classes of org.drools.core.rule.builder.dialect.asm.ClassGenerator

  • org.drools.compiler.rule.builder.dialect.asm.ASMConsequenceBuilder
  • org.drools.compiler.rule.builder.dialect.asm.ASMConsequenceStubBuilder
  • org.drools.compiler.rule.builder.dialect.asm.ASMEvalStubBuilder
  • org.drools.compiler.rule.builder.dialect.asm.ASMPredicateStubBuilder
  • org.drools.compiler.rule.builder.dialect.asm.ASMReturnValueStubBuilder
  • org.drools.compiler.rule.builder.dialect.asm.ClassGeneratorTest
  • org.drools.compiler.rule.builder.dialect.asm.InvokerGenerator
  • org.drools.compiler.rule.builder.dialect.asm.InvokerGeneratorTest
  • org.drools.core.rule.builder.dialect.asm.GeneratorHelper
  • org.drools.core.rule.constraint.ASMConditionEvaluatorJitter
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