use of org.mvel2.compiler.AccessorNode 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;
}
use of org.mvel2.compiler.AccessorNode in project mvel by mikebrock.
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);
if (scanTo(']'))
throw new PropertyAccessException("unterminated '['", expr, start);
String ex = new String(expr, st, cursor - st);
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);
}
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, this.length);
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 = null;
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("INVOKEVIRTUAL java/util/HashMap.put");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/util/HashMap", "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);
}
} catch (InvocationTargetException e) {
throw new PropertyAccessException("could not access property", expr, start, e);
} catch (IllegalAccessException e) {
throw new PropertyAccessException("could not access property", expr, start, e);
}
try {
deferFinish = false;
noinit = false;
_finishJIT();
return _initializeAccessor();
} catch (Exception e) {
throw new CompileException("could not generate accessor", expr, start, e);
}
}
use of org.mvel2.compiler.AccessorNode in project drools by kiegroup.
the class ConditionAnalyzer method analyzeAccessorInvocation.
private Invocation analyzeAccessorInvocation(AccessorNode accessorNode, ASTNode containingNode, Invocation formerInvocation, Class<?> variableType) {
if (accessorNode instanceof GetterAccessor) {
return new MethodInvocation(((GetterAccessor) accessorNode).getMethod(), variableType == null ? conditionClass : variableType.getName());
}
if (accessorNode instanceof MethodAccessor) {
MethodAccessor methodAccessor = (MethodAccessor) accessorNode;
Method method = methodAccessor.getMethod();
MethodInvocation invocation = new MethodInvocation(method);
boolean isVarArgs = method.isVarArgs();
readInvocationParams(invocation, methodAccessor.getParms(), methodAccessor.getParameterTypes(), isVarArgs);
return invocation;
}
if (accessorNode instanceof ConstructorAccessor) {
ConstructorAccessor constructorAccessor = (ConstructorAccessor) accessorNode;
Constructor constructor = constructorAccessor.getConstructor();
ConstructorInvocation invocation = new ConstructorInvocation(constructor);
readInvocationParams(invocation, constructorAccessor.getParameters(), constructorAccessor.getParameterTypes(), constructor.isVarArgs());
return invocation;
}
if (accessorNode instanceof ArrayAccessor) {
ArrayAccessor arrayAccessor = (ArrayAccessor) accessorNode;
return new ArrayAccessInvocation(formerInvocation != null ? formerInvocation.getReturnType() : Object[].class, new FixedExpression(int.class, arrayAccessor.getIndex()));
}
if (accessorNode instanceof ArrayAccessorNest) {
ArrayAccessorNest arrayAccessorNest = (ArrayAccessorNest) accessorNode;
ExecutableAccessor index = (ExecutableAccessor) arrayAccessorNest.getIndex();
return new ArrayAccessInvocation(formerInvocation != null ? formerInvocation.getReturnType() : Object[].class, analyzeNode(index.getNode()));
}
if (accessorNode instanceof ArrayLength) {
return new ArrayLengthInvocation();
}
if (accessorNode instanceof ListAccessor) {
Class<?> listType = getListType(formerInvocation);
ListAccessor listAccessor = (ListAccessor) accessorNode;
return new ListAccessInvocation(listType, new FixedExpression(int.class, listAccessor.getIndex()));
}
if (accessorNode instanceof ListAccessorNest) {
Class<?> listType = getListType(formerInvocation);
ListAccessorNest listAccessorNest = (ListAccessorNest) accessorNode;
ExecutableAccessor index = (ExecutableAccessor) listAccessorNest.getIndex();
return new ListAccessInvocation(listType, analyzeNode(index.getNode()));
}
if (accessorNode instanceof MapAccessor) {
MapAccessor mapAccessor = (MapAccessor) accessorNode;
return new MapAccessInvocation(Object.class, Object.class, new FixedExpression(Object.class, mapAccessor.getProperty()));
}
if (accessorNode instanceof MapAccessorNest) {
Class<?> keyType = Object.class;
Class<?> valueType = Object.class;
Type[] generics = getGenerics(formerInvocation);
if (generics != null && generics.length == 2 && generics[0] instanceof Class) {
keyType = (Class<?>) generics[0];
if (generics[1] instanceof Class)
valueType = (Class<?>) generics[1];
}
MapAccessorNest mapAccessor = (MapAccessorNest) accessorNode;
ExecutableStatement statement = mapAccessor.getProperty();
if (statement instanceof ExecutableLiteral) {
return new MapAccessInvocation(keyType, valueType, new FixedExpression(keyType, ((ExecutableLiteral) statement).getLiteral()));
} else {
return new MapAccessInvocation(keyType, valueType, analyzeNode(((ExecutableAccessor) statement).getNode()));
}
}
if (accessorNode instanceof FieldAccessor) {
return new FieldAccessInvocation(((FieldAccessor) accessorNode).getField());
}
if (accessorNode instanceof StaticVarAccessor) {
Field field = ((StaticVarAccessor) accessorNode).getField();
return new FieldAccessInvocation(field);
}
if (accessorNode instanceof ThisValueAccessor) {
return new ThisInvocation(accessorNode.getNextNode() == null ? containingNode.getEgressType() : Object.class);
}
throw new RuntimeException("Unknown AccessorNode type: " + accessorNode.getClass().getName());
}
use of org.mvel2.compiler.AccessorNode in project drools by kiegroup.
the class ConditionAnalyzer method analyzeNode.
private Expression analyzeNode(ASTNode node) {
node = analyzeRegEx(analyzeSubstatement(node));
if (node instanceof LiteralNode) {
LiteralNode literalNode = (LiteralNode) node;
return new FixedExpression(literalNode.getEgressType(), literalNode.getLiteralValue());
}
if (node instanceof BinaryOperation) {
BinaryOperation op = (BinaryOperation) node;
return new AritmeticExpression(analyzeNode(op.getLeft()), AritmeticOperator.fromMvelOpCode(op), analyzeNode(op.getRight()));
}
if (node instanceof TypeCast) {
ExecutableStatement statement = ((TypeCast) node).getStatement();
if (statement instanceof ExecutableAccessor) {
ExecutableAccessor accessor = (ExecutableAccessor) statement;
return new CastExpression(node.getEgressType(), analyzeNode(accessor.getNode()));
} else {
ExecutableLiteral literal = (ExecutableLiteral) statement;
return new CastExpression(node.getEgressType(), new FixedExpression(literal.getLiteral()));
}
}
if (node instanceof Union) {
ASTNode main = ((Union) node).getMain();
Accessor accessor = node.getAccessor();
EvaluatedExpression expression = new EvaluatedExpression();
expression.firstExpression = analyzeNode(main);
if (accessor instanceof DynamicGetAccessor) {
AccessorNode accessorNode = (AccessorNode) ((DynamicGetAccessor) accessor).getSafeAccessor();
expression.addInvocation(analyzeAccessorInvocation(accessorNode, node, null, null));
} else if (accessor instanceof AccessorNode) {
AccessorNode accessorNode = (AccessorNode) accessor;
while (accessorNode != null) {
expression.addInvocation(analyzeAccessorInvocation(accessorNode, node, null, null));
accessorNode = accessorNode.getNextNode();
}
} else {
throw new RuntimeException("Unexpected accessor: " + accessor);
}
return expression;
}
if (node instanceof Sign) {
ExecutableStatement statement = getFieldValue(Sign.class, "stmt", (Sign) node);
if (statement instanceof ExecutableAccessor) {
ExecutableAccessor accessor = (ExecutableAccessor) statement;
return new AritmeticExpression(new FixedExpression(0), AritmeticOperator.SUB, analyzeNode(accessor.getNode()));
} else {
ExecutableLiteral literal = (ExecutableLiteral) statement;
return new AritmeticExpression(new FixedExpression(0), AritmeticOperator.SUB, new FixedExpression(literal.getLiteral()));
}
}
Accessor accessor = node.getAccessor();
if (accessor instanceof IndexedVariableAccessor) {
String variableName = node.getName();
int dot = variableName.indexOf('.');
if (dot > 0) {
variableName = variableName.substring(0, dot);
}
Class<?> variableType = getVariableType(variableName);
return new VariableExpression(variableName, analyzeExpressionNode(((AccessorNode) accessor).getNextNode(), node, variableType), variableType != null ? variableType : node.getEgressType());
}
if (accessor == null && node instanceof NewObjectNode) {
accessor = ((NewObjectNode) node).getNewObjectOptimizer();
}
if (accessor instanceof VariableAccessor) {
VariableAccessor variableAccessor = (VariableAccessor) accessor;
AccessorNode accessorNode = variableAccessor.getNextNode();
if (accessorNode == null || !isStaticAccessor(accessorNode)) {
String variableName = (String) (variableAccessor.getProperty());
Class<?> variableType = getVariableType(variableName);
if (variableType != null) {
return new VariableExpression(variableName, analyzeExpressionNode(accessorNode, node, variableType), variableType);
} else {
if (node.getLiteralValue() instanceof ParserContext) {
ParserContext pCtx = (ParserContext) node.getLiteralValue();
// it's not a variable but a method invocation on this
Class<?> thisClass = pCtx.getInputs().get("this");
try {
return new EvaluatedExpression(new MethodInvocation(thisClass.getMethod(variableName)));
} catch (NoSuchMethodException e) {
if (node.getEgressType() == Class.class) {
// there's no method on this with the given name, check if it is a class literal
Class<?> classLiteral = pCtx.getParserConfiguration().getImport(variableName);
if (classLiteral != null) {
return new FixedExpression(Class.class, classLiteral);
}
}
throw new RuntimeException(e);
}
}
}
}
}
if (accessor == null) {
throw new RuntimeException("Null accessor on node: " + node);
}
return analyzeNodeAccessor(accessor, node);
}
use of org.mvel2.compiler.AccessorNode in project drools by kiegroup.
the class ConditionAnalyzer method analyzeNodeAccessor.
private Expression analyzeNodeAccessor(Accessor accessor, ASTNode node) {
AccessorNode accessorNode;
if (accessor instanceof DynamicGetAccessor) {
accessorNode = (AccessorNode) ((DynamicGetAccessor) accessor).getSafeAccessor();
} else if (accessor instanceof AccessorNode) {
accessorNode = (AccessorNode) accessor;
} else if (accessor instanceof CompiledExpression) {
return analyzeNode(((CompiledExpression) accessor).getFirstNode());
} else if (accessor instanceof ListCreator) {
return analyzeListCreation(((ListCreator) accessor));
} else if (accessor instanceof ArrayCreator) {
return analyzeArrayCreation(((ArrayCreator) accessor));
} else {
throw new RuntimeException("Unknown accessor type: " + accessor);
}
if (accessorNode instanceof VariableAccessor) {
if (isStaticAccessor(accessorNode)) {
while (accessorNode instanceof VariableAccessor) {
accessorNode = accessorNode.getNextNode();
}
} else {
return analyzeNodeAccessor(accessorNode, node);
}
}
while (accessorNode instanceof StaticReferenceAccessor) {
StaticReferenceAccessor staticReferenceAccessor = ((StaticReferenceAccessor) accessorNode);
Object literal = staticReferenceAccessor.getLiteral();
accessorNode = accessorNode.getNextNode();
if (accessorNode == null) {
return new FixedExpression(literal.getClass(), literal);
}
}
return analyzeExpressionNode(accessorNode, node, null);
}
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