Examples with Accessor org.mule.mvel2.compiler.Accessor used on opensource projects

Example 16 with Accessor

use of org.mule.mvel2.compiler.Accessor in project mvel by mvel.

the class ASMAccessorOptimizer method optimizeCollection.

public Accessor optimizeCollection(ParserContext pCtx, Object o, Class type, char[] property, int start, int offset, Object ctx, Object thisRef, VariableResolverFactory factory) {
    this.expr = property;
    this.cursor = this.start = start;
    this.end = start + offset;
    this.length = offset;
    this.returnType = type;
    this.compiledInputs = new ArrayList<ExecutableStatement>();
    this.ctx = ctx;
    this.thisRef = thisRef;
    this.variableFactory = factory;
    this.pCtx = pCtx;
    _initJIT();
    literal = true;
    _getAccessor(o, type);
    _finishJIT();
    try {
        Accessor compiledAccessor = _initializeAccessor();
        if (property != null && length > start) {
            return new Union(pCtx, compiledAccessor, property, start, length);
        } else {
            return compiledAccessor;
        }
    } catch (Exception e) {
        throw new OptimizationFailure("could not optimize collection", e);
    }
}

Example 17 with Accessor

use of org.mule.mvel2.compiler.Accessor in project mvel by mvel.

the class ReflectiveAccessorOptimizer method _getAccessor.

private Accessor _getAccessor(Object o, Class type) {
    if (o instanceof List) {
        Accessor[] a = new Accessor[((List) o).size()];
        int i = 0;
        for (Object item : (List) o) {
            a[i++] = _getAccessor(item, type);
        }
        returnType = List.class;
        return new ListCreator(a);
    } else if (o instanceof Map) {
        Accessor[] k = new Accessor[((Map) o).size()];
        Accessor[] v = new Accessor[k.length];
        int i = 0;
        for (Object item : ((Map) o).keySet()) {
            // key
            k[i] = _getAccessor(item, type);
            // value
            v[i++] = _getAccessor(((Map) o).get(item), type);
        }
        returnType = Map.class;
        return new MapCreator(k, v);
    } else if (o instanceof Object[]) {
        Accessor[] a = new Accessor[((Object[]) o).length];
        int i = 0;
        int dim = 0;
        if (type != null) {
            String nm = type.getName();
            while (nm.charAt(dim) == '[') dim++;
        } else {
            type = Object[].class;
            dim = 1;
        }
        try {
            Class base = getBaseComponentType(type);
            Class cls = dim > 1 ? findClass(null, repeatChar('[', dim - 1) + "L" + base.getName() + ";", pCtx) : type;
            for (Object item : (Object[]) o) {
                expectType(pCtx, a[i++] = _getAccessor(item, cls), base, true);
            }
            return new ArrayCreator(a, getSubComponentType(type));
        } catch (ClassNotFoundException e) {
            throw new RuntimeException("this error should never throw:" + getBaseComponentType(type).getName(), e);
        }
    } else {
        if (returnType == null)
            returnType = Object.class;
        if (type.isArray()) {
            return new ExprValueAccessor((String) o, type, ctx, variableFactory, pCtx);
        } else {
            return new ExprValueAccessor((String) o, Object.class, ctx, variableFactory, pCtx);
        }
    }
}

Example 18 with Accessor

use of org.mule.mvel2.compiler.Accessor in project mule by mulesoft.

the class AbstractVarAssignmentDataTypePropagatorTestCase method compileMelExpression.

private CompiledExpression compileMelExpression(String expression, PrivilegedEvent testEvent, PrivilegedEvent.Builder builder) {
    final ParserConfiguration parserConfiguration = MVELExpressionLanguage.createParserConfiguration(Collections.EMPTY_MAP);
    final MVELExpressionLanguageContext context = createMvelExpressionLanguageContext(testEvent, builder, parserConfiguration);
    CompiledExpression compiledExpression = (CompiledExpression) compileExpression(expression, new ParserContext(parserConfiguration));
    // Expression must be executed, otherwise the variable accessor is not properly configured
    MVEL.executeExpression(compiledExpression, context);
    return compiledExpression;
}

Example 19 with Accessor

use of org.mule.mvel2.compiler.Accessor in project mule by mulesoft.

the class AbstractVariableExpressionDataTypeResolver method getDataType.

@Override
protected DataType getDataType(PrivilegedEvent event, ASTNode node) {
    final Accessor accessor = node.getAccessor();
    if (accessor instanceof VariableAccessor) {
        VariableAccessor variableAccessor = (VariableAccessor) accessor;
        if (variableAccessor.getProperty().equals(propertyName)) {
            final AccessorNode nextNode = variableAccessor.getNextNode();
            String propertyName = null;
            if (nextNode instanceof MapAccessorNest) {
                final MapAccessorNest mapAccesorNest = (MapAccessorNest) nextNode;
                if (mapAccesorNest.getProperty().isLiteralOnly()) {
                    propertyName = (String) ((ExecutableLiteral) mapAccesorNest.getProperty()).getLiteral();
                }
            } else if (nextNode instanceof MapAccessor) {
                propertyName = (String) ((MapAccessor) nextNode).getProperty();
            }
            if (propertyName != null) {
                return getVariableDataType(event, propertyName);
            }
        }
    }
    return null;
}