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

Example 41 with Accessor

use of org.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 42 with Accessor

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

the class ReflectiveAccessorOptimizer method optimizeSetAccessor.

public Accessor optimizeSetAccessor(ParserContext pCtx, char[] property, int start, int offset, Object ctx, Object thisRef, VariableResolverFactory factory, boolean rootThisRef, Object value, Class ingressType) {
    this.rootNode = this.currNode = null;
    this.expr = property;
    this.start = start;
    this.first = true;
    this.length = start + offset;
    this.ctx = ctx;
    this.thisRef = thisRef;
    this.variableFactory = factory;
    this.ingressType = ingressType;
    char[] root = null;
    int split = findLastUnion();
    PropertyVerifier verifier = new PropertyVerifier(property, this.pCtx = pCtx);
    if (split != -1) {
        root = subset(property, 0, split++);
        // todo: must use the property verifier.
        property = subset(property, split, property.length - split);
    }
    if (root != null) {
        this.length = end = (this.expr = root).length;
        compileGetChain();
        ctx = this.val;
    }
    if (ctx == null) {
        throw new PropertyAccessException("could not access property: " + new String(property, this.start, Math.min(length, property.length)) + "; parent is null: " + new String(expr), expr, this.start, pCtx);
    }
    try {
        this.length = end = (this.expr = property).length;
        int st;
        this.cursor = st = 0;
        skipWhitespace();
        if (collection) {
            st = cursor;
            if (cursor == end)
                throw new PropertyAccessException("unterminated '['", expr, this.start, pCtx);
            if (scanTo(']'))
                throw new PropertyAccessException("unterminated '['", expr, this.start, pCtx);
            String ex = new String(property, st, cursor - st);
            if (ctx instanceof Map) {
                if (MVEL.COMPILER_OPT_ALLOW_OVERRIDE_ALL_PROPHANDLING && hasPropertyHandler(Map.class)) {
                    propHandlerSet(ex, ctx, Map.class, value);
                } else {
                    // noinspection unchecked
                    ((Map) ctx).put(eval(ex, ctx, variableFactory), convert(value, returnType = verifier.analyze()));
                    addAccessorNode(new MapAccessorNest(ex, returnType));
                }
                return rootNode;
            } else if (ctx instanceof List) {
                if (MVEL.COMPILER_OPT_ALLOW_OVERRIDE_ALL_PROPHANDLING && hasPropertyHandler(List.class)) {
                    propHandlerSet(ex, ctx, List.class, value);
                } else {
                    // noinspection unchecked
                    ((List) ctx).set(eval(ex, ctx, variableFactory, Integer.class), convert(value, returnType = verifier.analyze()));
                    addAccessorNode(new ListAccessorNest(ex, returnType));
                }
                return rootNode;
            } else if (MVEL.COMPILER_OPT_ALLOW_OVERRIDE_ALL_PROPHANDLING && hasPropertyHandler(ctx.getClass())) {
                propHandlerSet(ex, ctx, ctx.getClass(), value);
                return rootNode;
            } else if (ctx.getClass().isArray()) {
                if (MVEL.COMPILER_OPT_ALLOW_OVERRIDE_ALL_PROPHANDLING && hasPropertyHandler(Array.class)) {
                    propHandlerSet(ex, ctx, Array.class, value);
                } else {
                    // noinspection unchecked
                    Array.set(ctx, eval(ex, ctx, variableFactory, Integer.class), convert(value, getBaseComponentType(ctx.getClass())));
                    addAccessorNode(new ArrayAccessorNest(ex));
                }
                return rootNode;
            } else {
                throw new PropertyAccessException("cannot bind to collection property: " + new String(property) + ": not a recognized collection type: " + ctx.getClass(), expr, this.st, pCtx);
            }
        } else if (MVEL.COMPILER_OPT_ALLOW_OVERRIDE_ALL_PROPHANDLING && hasPropertyHandler(ctx.getClass())) {
            propHandlerSet(new String(property), ctx, ctx.getClass(), value);
            return rootNode;
        }
        String tk = new String(property, 0, length).trim();
        if (hasSetListeners()) {
            notifySetListeners(ctx, tk, variableFactory, value);
            addAccessorNode(new Notify(tk));
        }
        Member member = getFieldOrWriteAccessor(ctx.getClass(), tk, value == null ? null : ingressType);
        if (member instanceof Field) {
            Field fld = (Field) member;
            if (value != null && !fld.getType().isAssignableFrom(value.getClass())) {
                if (!canConvert(fld.getType(), value.getClass())) {
                    throw new CompileException("cannot convert type: " + value.getClass() + ": to " + fld.getType(), this.expr, this.start);
                }
                fld.set(ctx, convert(value, fld.getType()));
                addAccessorNode(new DynamicFieldAccessor(fld));
            } else if (value == null && fld.getType().isPrimitive()) {
                fld.set(ctx, PropertyTools.getPrimitiveInitialValue(fld.getType()));
                addAccessorNode(new FieldAccessor(fld));
            } else {
                fld.set(ctx, value);
                addAccessorNode(new FieldAccessor(fld));
            }
        } else if (member != null) {
            Method meth = (Method) member;
            if (value != null && !meth.getParameterTypes()[0].isAssignableFrom(value.getClass())) {
                if (!canConvert(meth.getParameterTypes()[0], value.getClass())) {
                    throw new CompileException("cannot convert type: " + value.getClass() + ": to " + meth.getParameterTypes()[0], this.expr, this.start);
                }
                meth.invoke(ctx, convert(value, meth.getParameterTypes()[0]));
            } else if (value == null && meth.getParameterTypes()[0].isPrimitive()) {
                meth.invoke(ctx, PropertyTools.getPrimitiveInitialValue(meth.getParameterTypes()[0]));
            } else {
                meth.invoke(ctx, value);
            }
            addAccessorNode(new SetterAccessor(meth));
        } else if (ctx instanceof Map) {
            // noinspection unchecked
            ((Map) ctx).put(tk, value);
            addAccessorNode(new MapAccessor(tk));
        } else {
            throw new PropertyAccessException("could not access property (" + tk + ") in: " + ingressType.getName(), this.expr, this.start, pCtx);
        }
    } catch (InvocationTargetException e) {
        throw new PropertyAccessException("could not access property: " + new String(property), this.expr, st, e, pCtx);
    } catch (IllegalAccessException e) {
        throw new PropertyAccessException("could not access property: " + new String(property), this.expr, st, e, pCtx);
    } catch (IllegalArgumentException e) {
        throw new PropertyAccessException("error binding property: " + new String(property) + " (value <<" + value + ">>::" + (value == null ? "null" : value.getClass().getCanonicalName()) + ")", this.expr, st, e, pCtx);
    }
    return rootNode;
}

Example 43 with Accessor

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

the class ASMAccessorOptimizer method _initJIT2.

private void _initJIT2() {
    if (isAdvancedDebugging()) {
        buildLog = new StringAppender();
    }
    cw = new ClassWriter(ClassWriter.COMPUTE_MAXS + ClassWriter.COMPUTE_FRAMES);
    synchronized (Runtime.getRuntime()) {
        cw.visit(OPCODES_VERSION, Opcodes.ACC_PUBLIC + Opcodes.ACC_SUPER, className = "ASMAccessorImpl_" + valueOf(cw.hashCode()).replaceAll("\\-", "_") + (System.currentTimeMillis() / 10) + ((int) (Math.random() * 100)), null, "java/lang/Object", new String[] { NAMESPACE + "compiler/Accessor" });
    }
    MethodVisitor m = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
    m.visitCode();
    m.visitVarInsn(Opcodes.ALOAD, 0);
    m.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
    m.visitInsn(RETURN);
    m.visitMaxs(1, 1);
    m.visitEnd();
    (mv = cw.visitMethod(ACC_PUBLIC, "setValue", "(Ljava/lang/Object;Ljava/lang/Object;L" + NAMESPACE + "integration/VariableResolverFactory;Ljava/lang/Object;)Ljava/lang/Object;", null, null)).visitCode();
}

Example 44 with Accessor

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

the class ASMAccessorOptimizer method optimizeSetAccessor.

public Accessor optimizeSetAccessor(ParserContext pCtx, char[] property, int start, int offset, Object ctx, Object thisRef, VariableResolverFactory factory, boolean rootThisRef, Object value, Class ingressType) {
    this.expr = property;
    this.start = this.cursor = start;
    this.end = start + offset;
    this.length = start + offset;
    this.first = true;
    this.ingressType = ingressType;
    compiledInputs = new ArrayList<ExecutableStatement>();
    this.pCtx = pCtx;
    this.ctx = ctx;
    this.thisRef = thisRef;
    this.variableFactory = factory;
    char[] root = null;
    PropertyVerifier verifier = new PropertyVerifier(property, this.pCtx = pCtx);
    int split = findLastUnion();
    if (split != -1) {
        root = subset(property, 0, split);
    }
    AccessorNode rootAccessor = null;
    _initJIT2();
    if (root != null) {
        int _length = this.length;
        int _end = this.end;
        char[] _expr = this.expr;
        this.length = end = (this.expr = root).length;
        // run the compiler but don't finish building.
        deferFinish = true;
        noinit = true;
        compileAccessor();
        ctx = this.val;
        this.expr = _expr;
        this.cursor = start + root.length + 1;
        this.length = _length - root.length - 1;
        this.end = this.cursor + this.length;
    } else {
        assert debug("ALOAD 1");
        mv.visitVarInsn(ALOAD, 1);
    }
    try {
        skipWhitespace();
        if (collection) {
            int st = cursor;
            whiteSpaceSkip();
            if (st == end)
                throw new PropertyAccessException("unterminated '['", expr, start, pCtx);
            if (scanTo(']'))
                throw new PropertyAccessException("unterminated '['", expr, start, pCtx);
            String ex = new String(expr, st, cursor - st).trim();
            assert debug("CHECKCAST " + ctx.getClass().getName());
            mv.visitTypeInsn(CHECKCAST, getInternalName(ctx.getClass()));
            if (ctx instanceof Map) {
                if (MVEL.COMPILER_OPT_ALLOW_OVERRIDE_ALL_PROPHANDLING && hasPropertyHandler(Map.class)) {
                    propHandlerByteCodePut(ex, ctx, Map.class, value);
                } else {
                    // noinspection unchecked
                    ((Map) ctx).put(eval(ex, ctx, variableFactory), convert(value, returnType = verifier.analyze()));
                    writeLiteralOrSubexpression(subCompileExpression(ex.toCharArray(), pCtx));
                    assert debug("ALOAD 4");
                    mv.visitVarInsn(ALOAD, 4);
                    if (value != null && returnType != value.getClass()) {
                        dataConversion(returnType);
                        checkcast(returnType);
                    }
                    assert debug("INVOKEINTERFACE 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("ALOAD 4");
                    mv.visitVarInsn(ALOAD, 4);
                }
            } else if (ctx instanceof List) {
                if (MVEL.COMPILER_OPT_ALLOW_OVERRIDE_ALL_PROPHANDLING && hasPropertyHandler(List.class)) {
                    propHandlerByteCodePut(ex, ctx, List.class, value);
                } else {
                    // noinspection unchecked
                    ((List) ctx).set(eval(ex, ctx, variableFactory, Integer.class), convert(value, returnType = verifier.analyze()));
                    writeLiteralOrSubexpression(subCompileExpression(ex.toCharArray(), pCtx));
                    unwrapPrimitive(int.class);
                    assert debug("ALOAD 4");
                    mv.visitVarInsn(ALOAD, 4);
                    if (value != null && !value.getClass().isAssignableFrom(returnType)) {
                        dataConversion(returnType);
                        checkcast(returnType);
                    }
                    assert debug("INVOKEINTERFACE List.set");
                    mv.visitMethodInsn(INVOKEINTERFACE, "java/util/List", "set", "(ILjava/lang/Object;)Ljava/lang/Object;");
                    assert debug("ALOAD 4");
                    mv.visitVarInsn(ALOAD, 4);
                }
            } else if (MVEL.COMPILER_OPT_ALLOW_OVERRIDE_ALL_PROPHANDLING && hasPropertyHandler(ctx.getClass())) {
                propHandlerByteCodePut(ex, ctx, ctx.getClass(), value);
            } else if (ctx.getClass().isArray()) {
                if (MVEL.COMPILER_OPT_ALLOW_OVERRIDE_ALL_PROPHANDLING && hasPropertyHandler(Array.class)) {
                    propHandlerByteCodePut(ex, ctx, Array.class, value);
                } else {
                    Class type = getBaseComponentType(ctx.getClass());
                    Object idx = eval(ex, ctx, variableFactory);
                    writeLiteralOrSubexpression(subCompileExpression(ex.toCharArray(), pCtx), int.class);
                    if (!(idx instanceof Integer)) {
                        dataConversion(Integer.class);
                        idx = DataConversion.convert(idx, Integer.class);
                        unwrapPrimitive(int.class);
                    }
                    assert debug("ALOAD 4");
                    mv.visitVarInsn(ALOAD, 4);
                    if (type.isPrimitive())
                        unwrapPrimitive(type);
                    else if (!type.equals(value.getClass())) {
                        dataConversion(type);
                    }
                    arrayStore(type);
                    // noinspection unchecked
                    Array.set(ctx, (Integer) idx, convert(value, type));
                    assert debug("ALOAD 4");
                    mv.visitVarInsn(ALOAD, 4);
                }
            } else {
                throw new PropertyAccessException("cannot bind to collection property: " + new String(expr) + ": not a recognized collection type: " + ctx.getClass(), expr, start, pCtx);
            }
            deferFinish = false;
            noinit = false;
            _finishJIT();
            try {
                deferFinish = false;
                return _initializeAccessor();
            } catch (Exception e) {
                throw new CompileException("could not generate accessor", expr, start, e);
            }
        }
        String tk = new String(expr, this.cursor, end - cursor);
        Member member = getFieldOrWriteAccessor(ctx.getClass(), tk, value == null ? null : ingressType);
        if (GlobalListenerFactory.hasSetListeners()) {
            mv.visitVarInsn(ALOAD, 1);
            mv.visitLdcInsn(tk);
            mv.visitVarInsn(ALOAD, 3);
            mv.visitVarInsn(ALOAD, 4);
            mv.visitMethodInsn(INVOKESTATIC, NAMESPACE + "integration/GlobalListenerFactory", "notifySetListeners", "(Ljava/lang/Object;Ljava/lang/String;L" + NAMESPACE + "integration/VariableResolverFactory;Ljava/lang/Object;)V");
            GlobalListenerFactory.notifySetListeners(ctx, tk, variableFactory, value);
        }
        if (member instanceof Field) {
            checkcast(ctx.getClass());
            Field fld = (Field) member;
            Label jmp = null;
            Label jmp2 = new Label();
            if (fld.getType().isPrimitive()) {
                assert debug("ASTORE 5");
                mv.visitVarInsn(ASTORE, 5);
                assert debug("ALOAD 4");
                mv.visitVarInsn(ALOAD, 4);
                if (value == null)
                    value = PropertyTools.getPrimitiveInitialValue(fld.getType());
                jmp = new Label();
                assert debug("IFNOTNULL jmp");
                mv.visitJumpInsn(IFNONNULL, jmp);
                assert debug("ALOAD 5");
                mv.visitVarInsn(ALOAD, 5);
                assert debug("ICONST_0");
                mv.visitInsn(ICONST_0);
                assert debug("PUTFIELD " + getInternalName(fld.getDeclaringClass()) + "." + tk);
                mv.visitFieldInsn(PUTFIELD, getInternalName(fld.getDeclaringClass()), tk, getDescriptor(fld.getType()));
                assert debug("GOTO jmp2");
                mv.visitJumpInsn(GOTO, jmp2);
                assert debug("jmp:");
                mv.visitLabel(jmp);
                assert debug("ALOAD 5");
                mv.visitVarInsn(ALOAD, 5);
                assert debug("ALOAD 4");
                mv.visitVarInsn(ALOAD, 4);
                unwrapPrimitive(fld.getType());
            } else {
                assert debug("ALOAD 4");
                mv.visitVarInsn(ALOAD, 4);
                checkcast(fld.getType());
            }
            if (jmp == null && value != null && !fld.getType().isAssignableFrom(value.getClass())) {
                if (!canConvert(fld.getType(), value.getClass())) {
                    throw new CompileException("cannot convert type: " + value.getClass() + ": to " + fld.getType(), expr, start);
                }
                dataConversion(fld.getType());
                fld.set(ctx, convert(value, fld.getType()));
            } else {
                fld.set(ctx, value);
            }
            assert debug("PUTFIELD " + getInternalName(fld.getDeclaringClass()) + "." + tk);
            mv.visitFieldInsn(PUTFIELD, getInternalName(fld.getDeclaringClass()), tk, getDescriptor(fld.getType()));
            assert debug("jmp2:");
            mv.visitLabel(jmp2);
            assert debug("ALOAD 4");
            mv.visitVarInsn(ALOAD, 4);
        } else if (member != null) {
            assert debug("CHECKCAST " + getInternalName(ctx.getClass()));
            mv.visitTypeInsn(CHECKCAST, getInternalName(ctx.getClass()));
            Method meth = (Method) member;
            assert debug("ALOAD 4");
            mv.visitVarInsn(ALOAD, 4);
            Class targetType = meth.getParameterTypes()[0];
            Label jmp;
            Label jmp2 = new Label();
            if (value != null && !targetType.isAssignableFrom(value.getClass())) {
                if (!canConvert(targetType, value.getClass())) {
                    throw new CompileException("cannot convert type: " + value.getClass() + ": to " + meth.getParameterTypes()[0], expr, start);
                }
                dataConversion(getWrapperClass(targetType));
                if (targetType.isPrimitive()) {
                    unwrapPrimitive(targetType);
                } else
                    checkcast(targetType);
                meth.invoke(ctx, convert(value, meth.getParameterTypes()[0]));
            } else {
                if (targetType.isPrimitive()) {
                    if (value == null)
                        value = PropertyTools.getPrimitiveInitialValue(targetType);
                    jmp = new Label();
                    assert debug("IFNOTNULL jmp");
                    mv.visitJumpInsn(IFNONNULL, jmp);
                    assert debug("ICONST_0");
                    mv.visitInsn(ICONST_0);
                    assert debug("INVOKEVIRTUAL " + getInternalName(meth.getDeclaringClass()) + "." + meth.getName());
                    mv.visitMethodInsn(INVOKEVIRTUAL, getInternalName(meth.getDeclaringClass()), meth.getName(), getMethodDescriptor(meth));
                    assert debug("GOTO jmp2");
                    mv.visitJumpInsn(GOTO, jmp2);
                    assert debug("jmp:");
                    mv.visitLabel(jmp);
                    assert debug("ALOAD 4");
                    mv.visitVarInsn(ALOAD, 4);
                    unwrapPrimitive(targetType);
                } else {
                    checkcast(targetType);
                }
                meth.invoke(ctx, value);
            }
            assert debug("INVOKEVIRTUAL " + getInternalName(meth.getDeclaringClass()) + "." + meth.getName());
            mv.visitMethodInsn(INVOKEVIRTUAL, getInternalName(meth.getDeclaringClass()), meth.getName(), getMethodDescriptor(meth));
            assert debug("jmp2:");
            mv.visitLabel(jmp2);
            assert debug("ALOAD 4");
            mv.visitVarInsn(ALOAD, 4);
        } else if (ctx instanceof Map) {
            assert debug("CHECKCAST " + getInternalName(ctx.getClass()));
            mv.visitTypeInsn(CHECKCAST, getInternalName(ctx.getClass()));
            assert debug("LDC '" + tk + "'");
            mv.visitLdcInsn(tk);
            assert debug("ALOAD 4");
            mv.visitVarInsn(ALOAD, 4);
            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("ALOAD 4");
            mv.visitVarInsn(ALOAD, 4);
            // noinspection unchecked
            ((Map) ctx).put(tk, value);
        } else {
            throw new PropertyAccessException("could not access property (" + tk + ") in: " + ingressType.getName(), expr, start, pCtx);
        }
    } catch (InvocationTargetException e) {
        throw new PropertyAccessException("could not access property", expr, start, e, pCtx);
    } catch (IllegalAccessException e) {
        throw new PropertyAccessException("could not access property", expr, start, e, pCtx);
    }
    try {
        deferFinish = false;
        noinit = false;
        _finishJIT();
        return _initializeAccessor();
    } catch (Exception e) {
        throw new CompileException("could not generate accessor", expr, start, e);
    }
}

Example 45 with Accessor

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

the class OptimizerFactory method setDefaultOptimizer.

public static void setDefaultOptimizer(String name) {
    try {
        // noinspection unchecked
        AccessorOptimizer ao = accessorCompilers.get(defaultOptimizer = name);
        ao.init();
        // clear optimizer so next call to getThreadAccessorOptimizer uses the default again, don't set thread optimizer
        // or else static initializers setting the default will unintentionally set up ThreadLocals
        threadOptimizer.set(null);
    } catch (Exception e) {
        throw new RuntimeException("unable to instantiate accessor compiler", e);
    }
}