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

Example 11 with Accessor

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

the class ReflectiveAccessorOptimizer method optimizeCollection.

public Accessor optimizeCollection(ParserContext pCtx, Object o, Class type, char[] property, int start, int offset, Object ctx, Object thisRef, VariableResolverFactory factory) {
    this.start = this.cursor = start;
    this.length = start + offset;
    this.returnType = type;
    this.ctx = ctx;
    this.variableFactory = factory;
    this.pCtx = pCtx;
    Accessor root = _getAccessor(o, returnType);
    if (property != null && length > start) {
        return new Union(root, property, cursor, offset);
    } else {
        return root;
    }
}

Example 12 with Accessor

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

the class ReflectiveAccessorOptimizer method get.

public static Object get(String expression, Object ctx) {
    int hash = createSignatureHash(expression, ctx);
    Accessor accessor = REFLECTIVE_ACCESSOR_CACHE.get(hash);
    if (accessor != null) {
        return accessor.getValue(ctx, null, null);
    } else {
        REFLECTIVE_ACCESSOR_CACHE.put(hash, accessor = new ReflectiveAccessorOptimizer().optimizeAccessor(getCurrentThreadParserContext(), expression.toCharArray(), 0, expression.length(), ctx, null, null, false, null));
        return accessor.getValue(ctx, null, null);
    }
}

Example 13 with Accessor

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

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(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 14 with Accessor

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

the class ASMAccessorOptimizer method _getAccessor.

private int _getAccessor(Object o, Class type) {
    if (o instanceof List) {
        assert debug("NEW " + LIST_IMPL);
        mv.visitTypeInsn(NEW, LIST_IMPL);
        assert debug("DUP");
        mv.visitInsn(DUP);
        assert debug("DUP");
        mv.visitInsn(DUP);
        intPush(((List) o).size());
        assert debug("INVOKESPECIAL " + LIST_IMPL + ".<init>");
        mv.visitMethodInsn(INVOKESPECIAL, LIST_IMPL, "<init>", "(I)V");
        for (Object item : (List) o) {
            if (_getAccessor(item, type) != VAL) {
                assert debug("POP");
                mv.visitInsn(POP);
            }
            assert debug("INVOKEINTERFACE java/util/List.add");
            mv.visitMethodInsn(INVOKEINTERFACE, "java/util/List", "add", "(Ljava/lang/Object;)Z");
            assert debug("POP");
            mv.visitInsn(POP);
            assert debug("DUP");
            mv.visitInsn(DUP);
        }
        returnType = List.class;
        return LIST;
    } else if (o instanceof Map) {
        assert debug("NEW " + MAP_IMPL);
        mv.visitTypeInsn(NEW, MAP_IMPL);
        assert debug("DUP");
        mv.visitInsn(DUP);
        assert debug("DUP");
        mv.visitInsn(DUP);
        intPush(((Map) o).size());
        assert debug("INVOKESPECIAL " + MAP_IMPL + ".<init>");
        mv.visitMethodInsn(INVOKESPECIAL, MAP_IMPL, "<init>", "(I)V");
        for (Object item : ((Map) o).keySet()) {
            mv.visitTypeInsn(CHECKCAST, "java/util/Map");
            if (_getAccessor(item, type) != VAL) {
                assert debug("POP");
                mv.visitInsn(POP);
            }
            if (_getAccessor(((Map) o).get(item), type) != VAL) {
                assert debug("POP");
                mv.visitInsn(POP);
            }
            assert debug("INVOKEINTERFACE java/util/Map.put");
            mv.visitMethodInsn(INVOKEINTERFACE, "java/util/Map", "put", "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;");
            assert debug("POP");
            mv.visitInsn(POP);
            assert debug("DUP");
            mv.visitInsn(DUP);
        }
        returnType = Map.class;
        return MAP;
    } 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 componentType = getSubComponentType(type);
            createArray(componentType, ((Object[]) o).length);
            Class cls = dim > 1 ? findClass(null, repeatChar('[', dim - 1) + "L" + getBaseComponentType(type).getName() + ";", pCtx) : toNonPrimitiveArray(type);
            assert debug("DUP");
            mv.visitInsn(DUP);
            for (Object item : (Object[]) o) {
                intPush(i);
                if (_getAccessor(item, cls) != VAL) {
                    assert debug("POP");
                    mv.visitInsn(POP);
                }
                if (componentType.isPrimitive()) {
                    unwrapPrimitive(componentType);
                }
                arrayStore(componentType);
                assert debug("DUP");
                mv.visitInsn(DUP);
                i++;
            }
        } catch (ClassNotFoundException e) {
            throw new RuntimeException("this error should never throw:" + getBaseComponentType(type).getName(), e);
        }
        return ARRAY;
    } else {
        if (type.isArray()) {
            writeLiteralOrSubexpression(subCompileExpression(((String) o).toCharArray(), pCtx), getSubComponentType(type));
        } else {
            writeLiteralOrSubexpression(subCompileExpression(((String) o).toCharArray(), pCtx));
        }
        return VAL;
    }
}

Example 15 with Accessor

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

the class ASMAccessorOptimizer method _initializeAccessor.

private Accessor _initializeAccessor() throws Exception {
    if (deferFinish) {
        return null;
    }
    /**
     * Hot load the class we just generated.
     */
    Class cls = loadClass(className, cw.toByteArray());
    assert debug("[MVEL JIT Completed Optimization <<" + (expr != null ? new String(expr) : "") + ">>]::" + cls + " (time: " + (System.currentTimeMillis() - time) + "ms)");
    Object o;
    try {
        if (compiledInputs.size() == 0) {
            o = cls.newInstance();
        } else {
            Class[] parms = new Class[compiledInputs.size()];
            for (int i = 0; i < compiledInputs.size(); i++) {
                parms[i] = ExecutableStatement.class;
            }
            o = cls.getConstructor(parms).newInstance(compiledInputs.toArray(new ExecutableStatement[compiledInputs.size()]));
        }
        if (propNull)
            cls.getField("nullPropertyHandler").set(o, getNullPropertyHandler());
        if (methNull)
            cls.getField("nullMethodHandler").set(o, getNullMethodHandler());
    } catch (VerifyError e) {
        System.out.println("**** COMPILER BUG! REPORT THIS IMMEDIATELY AT http://jira.codehaus.org/browse/MVEL");
        System.out.println("Expression: " + (expr == null ? null : new String(expr)));
        throw e;
    }
    return (Accessor) o;
}