Examples with BitMask org.drools.core.util.bitmask.BitMask used on opensource projects

Example 6 with BitMask

use of org.drools.core.util.bitmask.BitMask in project drools by kiegroup.

the class JavaConsequenceBuilderPRAlwaysTest method testForBlocks.

@Test
public void testForBlocks() throws Exception {
    String consequence = " System.out.println(\"this is a test\");\n " + "int i = 0;\n" + " for ( Cheese c1 = $cheese; i < 10;i++ )     { \r\n" + "     modify( c1 ) { setPrice( 10 ), \n" + "                    setOldPrice( age ) }\n " + "     Cheese c4 = $cheese;\n" + "     for ( Cheese item : new ArrayList<Cheese>() ) {" + "         modify( $cheese ) { setPrice( 10 ), setOldPrice( age ) }\n " + "      }\n" + " } \n " + // <<< TODO in the original test here was a cast to (Cheese) $cheese,  but this ad-hoc test is missing the kBuilder to properly populate the CompositePackageDescr which contains the import declaration.
    " for ( ; ; ) modify( $cheese ) { setPrice( 10 ), setOldPrice( age ) }\n " + // the more correct way would be to change completely the ad-hoc build logic of this test contained in setupTest() and intercept the DialectUtils transformation on a *real* compilation process.
    " for ( Cheese item : new ArrayList<Cheese>() ) modify( $cheese ) { setPrice( 10 ), setOldPrice( age ) }\n " + " modify( $cheese ) { setPrice( 10 ), setOldPrice( age ) }\n " + " System.out.println(\"we are done\");\n ";
    setupTest("", new HashMap<String, Object>());
    ruleDescr.setConsequence(consequence);
    JavaExprAnalyzer analyzer = new JavaExprAnalyzer();
    Map<String, Class<?>> declrCls = new HashMap<String, Class<?>>();
    declrCls.put("$cheese", Cheese.class);
    JavaAnalysisResult analysis = (JavaAnalysisResult) analyzer.analyzeBlock((String) ruleDescr.getConsequence(), new BoundIdentifiers(declrCls, null));
    BoundIdentifiers bindings = new BoundIdentifiers(new HashMap(), null);
    bindings.getDeclrClasses().put("$cheese", Cheese.class);
    bindings.getDeclrClasses().put("age", int.class);
    // Set the inputs for each container, this is needed for modifes when the target context is the result of an expression
    List<JavaBlockDescr> descrs = new ArrayList<JavaBlockDescr>();
    setContainerBlockInputs(context, descrs, analysis.getBlockDescrs(), consequence, bindings, new HashMap(), 0);
    String fixed = fixBlockDescr(context, analysis, context.getDeclarationResolver().getDeclarations(context.getRule()));
    List<String> cheeseAccessibleProperties = ClassUtils.getAccessibleProperties(Cheese.class);
    BitMask priceOldPrice = PropertySpecificUtil.calculatePositiveMask(Cheese.class, Arrays.asList("price", "oldPrice"), cheeseAccessibleProperties);
    String expected = " System.out.println(\"this is a test\");\r\n" + " int i = 0;\r\n" + " for ( Cheese c1 = $cheese; i < 10;i++ )     { \r\n" + "     { org.drools.compiler.Cheese __obj__ = ( c1 ); org.kie.api.runtime.rule.FactHandle __obj____Handle2__ = drools.getFactHandle(__obj__);__obj__.setPrice( 10 ); \r\n" + "__obj__.setOldPrice( age ); drools.update( __obj____Handle2__, " + priceOldPrice.getInstancingStatement() + ", org.drools.compiler.Cheese.class ); }\r\n" + "      Cheese c4 = $cheese;\r\n" + "     for ( Cheese item : new ArrayList<Cheese>() ) {         { $cheese.setPrice( 10 ); $cheese.setOldPrice( age ); drools.update( $cheese__Handle__, " + priceOldPrice.getInstancingStatement() + ", org.drools.compiler.Cheese.class ); }\r\n" + "       }\r\n" + " } \r\n" + "  for ( ; ; ) { $cheese.setPrice( 10 ); $cheese.setOldPrice( age ); drools.update( $cheese__Handle__, " + priceOldPrice.getInstancingStatement() + ", org.drools.compiler.Cheese.class ); }\r\n" + "  for ( Cheese item : new ArrayList<Cheese>() ) { $cheese.setPrice( 10 ); $cheese.setOldPrice( age ); drools.update( $cheese__Handle__, " + priceOldPrice.getInstancingStatement() + ", org.drools.compiler.Cheese.class ); }\r\n" + "  { $cheese.setPrice( 10 ); $cheese.setOldPrice( age ); drools.update( $cheese__Handle__, " + priceOldPrice.getInstancingStatement() + ", org.drools.compiler.Cheese.class ); }\r\n" + "  System.out.println(\"we are done\");\r\n" + " \r\n" + "";
    System.out.println(expected);
    System.out.println(fixed);
    assertNotNull(context.getErrors().toString(), fixed);
    assertEqualsIgnoreSpaces(expected, fixed);
}

Example 7 with BitMask

use of org.drools.core.util.bitmask.BitMask in project drools by kiegroup.

the class DialectUtil method rewriteModifyDescr.

private static void rewriteModifyDescr(RuleBuildContext context, JavaBlockDescr d, String originalBlock, StringBuilder consequence, Declaration declr, String obj) {
    List<String> settableProperties = null;
    Class<?> typeClass = findModifiedClass(context, d, declr);
    TypeDeclaration typeDeclaration = typeClass == null ? null : context.getKnowledgeBuilder().getTypeDeclaration(typeClass);
    boolean isPropertyReactive = typeDeclaration != null && typeDeclaration.isPropertyReactive();
    if (isPropertyReactive) {
        typeDeclaration.setTypeClass(typeClass);
        settableProperties = typeDeclaration.getAccessibleProperties();
    }
    ConsequenceMetaData.Statement statement = null;
    if (typeDeclaration != null) {
        statement = new ConsequenceMetaData.Statement(ConsequenceMetaData.Statement.Type.MODIFY, typeClass);
        context.getRule().getConsequenceMetaData().addStatement(statement);
    }
    BitMask modificationMask = isPropertyReactive ? getEmptyPropertyReactiveMask(settableProperties.size()) : allSetButTraitBitMask();
    int end = originalBlock.indexOf("{");
    if (end == -1) {
        // no block
        context.addError(new DescrBuildError(context.getParentDescr(), context.getRuleDescr(), null, "Block missing after modify" + d.getTargetExpression() + " ?\n"));
        return;
    }
    addLineBreaks(consequence, originalBlock.substring(0, end));
    int start = end + 1;
    // adding each of the expressions:
    for (String exprStr : ((JavaModifyBlockDescr) d).getExpressions()) {
        end = originalBlock.indexOf(exprStr, start);
        addLineBreaks(consequence, originalBlock.substring(start, end));
        consequence.append(obj).append(".");
        consequence.append(exprStr);
        consequence.append("; ");
        start = end + exprStr.length();
        if (typeDeclaration != null) {
            modificationMask = parseModifiedProperties(statement, settableProperties, typeDeclaration, isPropertyReactive, modificationMask, exprStr);
        }
    }
    addLineBreaks(consequence, originalBlock.substring(end));
    appendUpdateStatement(consequence, declr, obj, modificationMask, typeClass);
}

Example 8 with BitMask

use of org.drools.core.util.bitmask.BitMask in project drools by kiegroup.

the class MvelConstraint method calculateMaskFromExpression.

private BitMask calculateMaskFromExpression(List<String> settableProperties) {
    BitMask mask = getEmptyPropertyReactiveMask(settableProperties.size());
    String[] simpleExpressions = expression.split("\\Q&&\\E|\\Q||\\E");
    for (String simpleExpression : simpleExpressions) {
        String propertyName = getPropertyNameFromSimpleExpression(simpleExpression);
        if (propertyName == null || propertyName.equals("this") || propertyName.length() == 0) {
            return allSetButTraitBitMask();
        }
        int pos = settableProperties.indexOf(propertyName);
        if (pos < 0 && Character.isUpperCase(propertyName.charAt(0))) {
            propertyName = propertyName.substring(0, 1).toLowerCase() + propertyName.substring(1);
            pos = settableProperties.indexOf(propertyName);
        }
        if (pos >= 0) {
            // Ignore not settable properties
            mask = mask.set(pos + PropertySpecificUtil.CUSTOM_BITS_OFFSET);
        }
    }
    return mask;
}

Example 9 with BitMask

use of org.drools.core.util.bitmask.BitMask in project drools by kiegroup.

the class DialectUtil method rewriteUpdateDescr.

private static void rewriteUpdateDescr(RuleBuildContext context, JavaBlockDescr d, StringBuilder consequence, Declaration declr, String obj) {
    BitMask modificationMask = AllSetBitMask.get();
    Class<?> typeClass = findModifiedClass(context, d, declr);
    TypeDeclaration typeDeclaration = typeClass == null ? null : context.getKnowledgeBuilder().getTypeDeclaration(typeClass);
    if (typeDeclaration != null) {
        boolean isPropertyReactive = typeDeclaration.isPropertyReactive();
        List<String> settableProperties = null;
        if (isPropertyReactive) {
            typeDeclaration.setTypeClass(typeClass);
            settableProperties = typeDeclaration.getAccessibleProperties();
            modificationMask = getEmptyPropertyReactiveMask(settableProperties.size());
        }
        ConsequenceMetaData.Statement statement = new ConsequenceMetaData.Statement(ConsequenceMetaData.Statement.Type.MODIFY, typeClass);
        context.getRule().getConsequenceMetaData().addStatement(statement);
        if (isPropertyReactive) {
            boolean parsedExprOnce = false;
            // a late optimization to include this for-loop within this if
            for (String expr : splitStatements(consequence)) {
                String updateExpr = expr.replaceFirst("^\\Q" + obj + "\\E\\s*\\.", "");
                if (!updateExpr.equals(expr)) {
                    parsedExprOnce = true;
                    modificationMask = parseModifiedProperties(statement, settableProperties, typeDeclaration, isPropertyReactive, modificationMask, updateExpr);
                    if (modificationMask == allSetButTraitBitMask()) {
                        // opt: if we were unable to detect the property in the mask is all set, so avoid the rest of the cycle
                        break;
                    }
                }
            }
            if (!parsedExprOnce) {
                // never called parseModifiedProperties(), hence never had the opportunity to "miss" the property and set mask to All-set; doing so here:
                modificationMask = allSetButTraitBitMask();
            }
        }
    }
    appendUpdateStatement(consequence, declr, obj, modificationMask, typeClass);
}

Example 10 with BitMask

use of org.drools.core.util.bitmask.BitMask in project drools by kiegroup.

the class PhreakPropagationContext method adaptModificationMaskForObjectType.

public PropagationContext adaptModificationMaskForObjectType(ObjectType type, InternalWorkingMemory workingMemory) {
    if (isAllSetPropertyReactiveMask(originalMask) || originalMask.isSet(PropertySpecificUtil.TRAITABLE_BIT) || !(type instanceof ClassObjectType)) {
        return this;
    }
    ClassObjectType classObjectType = (ClassObjectType) type;
    BitMask cachedMask = classObjectType.getTransformedMask(modifiedClass, originalMask);
    if (cachedMask != null) {
        modificationMask = cachedMask;
        return this;
    }
    modificationMask = originalMask;
    boolean typeBit = modificationMask.isSet(PropertySpecificUtil.TRAITABLE_BIT);
    modificationMask = modificationMask.reset(PropertySpecificUtil.TRAITABLE_BIT);
    Class<?> classType = classObjectType.getClassType();
    String pkgName = classType.getPackage().getName();
    if (classType == modifiedClass || "java.lang".equals(pkgName) || !(classType.isInterface() || modifiedClass.isInterface())) {
        if (typeBit) {
            modificationMask = modificationMask.set(PropertySpecificUtil.TRAITABLE_BIT);
        }
        return this;
    }
    List<String> typeClassProps = getAccessibleProperties(workingMemory, classType, pkgName);
    List<String> modifiedClassProps = getAccessibleProperties(workingMemory, modifiedClass);
    modificationMask = getEmptyPropertyReactiveMask(typeClassProps.size());
    for (int i = 0; i < modifiedClassProps.size(); i++) {
        if (isPropertySetOnMask(originalMask, i)) {
            int posInType = typeClassProps.indexOf(modifiedClassProps.get(i));
            if (posInType >= 0) {
                modificationMask = setPropertyOnMask(modificationMask, posInType);
            }
        }
    }
    if (typeBit) {
        modificationMask = modificationMask.set(PropertySpecificUtil.TRAITABLE_BIT);
    }
    classObjectType.storeTransformedMask(modifiedClass, originalMask, modificationMask);
    return this;
}