Java ReflectivePropertyAccessor类代码示例

import org.springframework.expression.spel.support.ReflectivePropertyAccessor; //导入依赖的package包/类
/**
 * Gets spring expression parser.
 *
 * @return the spring expression parser
 */
protected SpringELExpressionParser getSpringExpressionParser() {
    final SpelParserConfiguration configuration = new SpelParserConfiguration();
    final SpelExpressionParser spelExpressionParser = new SpelExpressionParser(configuration);
    final SpringELExpressionParser parser = new SpringELExpressionParser(spelExpressionParser,
            this.flowBuilderServices.getConversionService());

    parser.addPropertyAccessor(new ActionPropertyAccessor());
    parser.addPropertyAccessor(new BeanFactoryPropertyAccessor());
    parser.addPropertyAccessor(new FlowVariablePropertyAccessor());
    parser.addPropertyAccessor(new MapAdaptablePropertyAccessor());
    parser.addPropertyAccessor(new MessageSourcePropertyAccessor());
    parser.addPropertyAccessor(new ScopeSearchingPropertyAccessor());
    parser.addPropertyAccessor(new BeanExpressionContextAccessor());
    parser.addPropertyAccessor(new MapAccessor());
    parser.addPropertyAccessor(new MapAdaptablePropertyAccessor());
    parser.addPropertyAccessor(new EnvironmentAccessor());
    parser.addPropertyAccessor(new ReflectivePropertyAccessor());
    return parser;

}
 

import org.springframework.expression.spel.support.ReflectivePropertyAccessor; //导入依赖的package包/类
@Override
public boolean isCompilable() {
	if (this.indexedType == IndexedType.ARRAY) {
		return (this.exitTypeDescriptor != null);
	}
	else if (this.indexedType == IndexedType.LIST) {
		return this.children[0].isCompilable();
	}
	else if (this.indexedType == IndexedType.MAP) {
		return (this.children[0] instanceof PropertyOrFieldReference || this.children[0].isCompilable());
	}
	else if (this.indexedType == IndexedType.OBJECT) {
		// If the string name is changing the accessor is clearly going to change (so compilation is not possible)
		if (this.cachedReadAccessor != null && 
				(this.cachedReadAccessor instanceof ReflectivePropertyAccessor.OptimalPropertyAccessor) &&
				(getChild(0) instanceof StringLiteral)) {
			return true;
		}
	}
	return false;
}
 

import org.springframework.expression.spel.support.ReflectivePropertyAccessor; //导入依赖的package包/类
/**
 * Test the default perbuilder
 */
@Test
public void preBuilderTest(){
	
	DefaultPreBuilder<DefaultSpelTestObj> t = new DefaultPreBuilder<DefaultSpelTestObj>(DefaultSpelTestObj.class);
	DefaultSpelTestObj obj = t.build(rules);
	SpelTransformer<DefaultSpelTestObj, DefaultSpelTestObj> transformer = new SpelTransformer<DefaultSpelTestObj, DefaultSpelTestObj>();

	transformer.setRules(rules);
	List<PropertyAccessor> l = new ArrayList<PropertyAccessor>();
	l.add(new ReflectivePropertyAccessor());
	transformer.setInputaccessors(l);
	transformer.setOutputaccessors(l);
	transformer.setOutputPreBuilder(t);

	DefaultSpelTestObj result = (DefaultSpelTestObj) transformer
			.transform(in);
	
}
 

import org.springframework.expression.spel.support.ReflectivePropertyAccessor; //导入依赖的package包/类
@Override
public TypedValue getValue() {
	Class<?> targetObjectRuntimeClass = getObjectClass(this.targetObject);
	try {
		if (Indexer.this.cachedReadName != null && Indexer.this.cachedReadName.equals(this.name) &&
				Indexer.this.cachedReadTargetType != null &&
				Indexer.this.cachedReadTargetType.equals(targetObjectRuntimeClass)) {
			// It is OK to use the cached accessor
			return Indexer.this.cachedReadAccessor.read(this.evaluationContext, this.targetObject, this.name);
		}
		List<PropertyAccessor> accessorsToTry = AstUtils.getPropertyAccessorsToTry(
				targetObjectRuntimeClass, this.evaluationContext.getPropertyAccessors());
		if (accessorsToTry != null) {
			for (PropertyAccessor accessor : accessorsToTry) {
				if (accessor.canRead(this.evaluationContext, this.targetObject, this.name)) {
					if (accessor instanceof ReflectivePropertyAccessor) {
						accessor = ((ReflectivePropertyAccessor) accessor).createOptimalAccessor(
								this.evaluationContext, this.targetObject, this.name);
					}
					Indexer.this.cachedReadAccessor = accessor;
					Indexer.this.cachedReadName = this.name;
					Indexer.this.cachedReadTargetType = targetObjectRuntimeClass;
					return accessor.read(this.evaluationContext, this.targetObject, this.name);
				}
			}
		}
	}
	catch (AccessException ex) {
		throw new SpelEvaluationException(getStartPosition(), ex, SpelMessage.INDEXING_NOT_SUPPORTED_FOR_TYPE,
				this.targetObjectTypeDescriptor.toString());
	}
	throw new SpelEvaluationException(getStartPosition(), SpelMessage.INDEXING_NOT_SUPPORTED_FOR_TYPE,
			this.targetObjectTypeDescriptor.toString());
}
 

import org.springframework.expression.spel.support.ReflectivePropertyAccessor; //导入依赖的package包/类
@Test
public void SPR9994_bridgeMethods() throws Exception {
	ReflectivePropertyAccessor accessor = new ReflectivePropertyAccessor();
	StandardEvaluationContext context = new StandardEvaluationContext();
	Object target = new GenericImplementation();
	TypedValue value = accessor.read(context, target, "property");
	assertEquals(Integer.class, value.getTypeDescriptor().getType());
}
 

import org.springframework.expression.spel.support.ReflectivePropertyAccessor; //导入依赖的package包/类
@Test
public void SPR10162_onlyBridgeMethod() throws Exception {
	ReflectivePropertyAccessor accessor = new ReflectivePropertyAccessor();
	StandardEvaluationContext context = new StandardEvaluationContext();
	Object target = new OnlyBridgeMethod();
	TypedValue value = accessor.read(context, target, "property");
	assertEquals(Integer.class, value.getTypeDescriptor().getType());
}
 

import org.springframework.expression.spel.support.ReflectivePropertyAccessor; //导入依赖的package包/类
@Test
public void testAttributeReplacement() {
	SpelTransformer<DefaultSpelTestObj, DefaultSpelTestObj> transformer = new SpelTransformer<DefaultSpelTestObj, DefaultSpelTestObj>();

	transformer.setRules(rules);
	List<PropertyAccessor> l = new ArrayList<PropertyAccessor>();
	l.add(new ReflectivePropertyAccessor());
	transformer.setInputaccessors(l);
	transformer.setOutputaccessors(l);
	transformer.setOutputObject(new DefaultSpelTestObj());

	DefaultSpelTestObj result = (DefaultSpelTestObj) transformer
			.transform(in);

}
 

import org.springframework.expression.spel.support.ReflectivePropertyAccessor; //导入依赖的package包/类
public TypedValue getValue() {
	Class<?> targetObjectRuntimeClass = getObjectClass(targetObject);
	try {
		if (cachedReadName != null && cachedReadName.equals(name) && cachedReadTargetType != null &&
				cachedReadTargetType.equals(targetObjectRuntimeClass)) {
			// it is OK to use the cached accessor
			return cachedReadAccessor.read(this.eContext, this.targetObject, this.name);
		}
		List<PropertyAccessor> accessorsToTry =
				AstUtils.getPropertyAccessorsToTry(targetObjectRuntimeClass, eContext.getPropertyAccessors());
		if (accessorsToTry != null) {
			for (PropertyAccessor accessor : accessorsToTry) {
				if (accessor.canRead(this.eContext, this.targetObject, this.name)) {
					if (accessor instanceof ReflectivePropertyAccessor) {
						accessor = ((ReflectivePropertyAccessor) accessor).createOptimalAccessor(
								this.eContext, this.targetObject, this.name);
					}
					cachedReadAccessor = accessor;
					cachedReadName = this.name;
					cachedReadTargetType = targetObjectRuntimeClass;
					return accessor.read(this.eContext, this.targetObject, this.name);
				}
			}
		}
	}
	catch (AccessException ex) {
		throw new SpelEvaluationException(getStartPosition(), ex, SpelMessage.INDEXING_NOT_SUPPORTED_FOR_TYPE,
				this.td.toString());
	}
	throw new SpelEvaluationException(getStartPosition(), SpelMessage.INDEXING_NOT_SUPPORTED_FOR_TYPE,
			this.td.toString());
}
 

import org.springframework.expression.spel.support.ReflectivePropertyAccessor; //导入依赖的package包/类
@Override
public boolean canRead(EvaluationContext context, Object target, String name) throws AccessException {
	if (target instanceof BaseObjectWithExts && name != null) {
		for (PropertyAccessor accessor : context.getPropertyAccessors()) {
			if (accessor instanceof ReflectivePropertyAccessor) {
				return !accessor.canRead(context, target, name);
			}
		}
	}
	return false;
}
 

import org.springframework.expression.spel.support.ReflectivePropertyAccessor; //导入依赖的package包/类
@Override
public boolean canWrite(EvaluationContext context, Object target, String name) throws AccessException {
	if (target instanceof BaseObjectWithExts && name != null) {
		for (PropertyAccessor accessor : context.getPropertyAccessors()) {
			if (accessor instanceof ReflectivePropertyAccessor) {
				return !accessor.canWrite(context, target, name);
			}
		}
	}
	return false;
}
 

import org.springframework.expression.spel.support.ReflectivePropertyAccessor; //导入依赖的package包/类
@Override
public boolean canRead(EvaluationContext context, Object target, String name) throws AccessException {
	if (target instanceof AuditedBaseEntityWithExt && name != null) {
		for (PropertyAccessor accessor : context.getPropertyAccessors()) {
			if (accessor instanceof ReflectivePropertyAccessor) {
				return !accessor.canRead(context, target, name);
			}
		}
	}
	return false;
}
 

import org.springframework.expression.spel.support.ReflectivePropertyAccessor; //导入依赖的package包/类
@Override
public boolean canWrite(EvaluationContext context, Object target, String name) throws AccessException {
	if (target instanceof AuditedBaseEntityWithExt && name != null) {
		for (PropertyAccessor accessor : context.getPropertyAccessors()) {
			if (accessor instanceof ReflectivePropertyAccessor) {
				return !accessor.canWrite(context, target, name);
			}
		}
	}
	return false;
}
 

import org.springframework.expression.spel.support.ReflectivePropertyAccessor; //导入依赖的package包/类
public ConsumerBeanAutoConfiguration() {
	this.expressionParser = new SpelExpressionParser();

	this.expressionPropertyAccessors = new ArrayList<PropertyAccessor>();
	this.expressionPropertyAccessors.add(new EnvironmentAccessor());
	this.expressionPropertyAccessors.add(new BeanFactoryAccessor());
	this.expressionPropertyAccessors.add(new ReflectivePropertyAccessor());
	this.expressionPropertyAccessors.add(new DirectFieldAccessPropertyAccessor());
}
 

import org.springframework.expression.spel.support.ReflectivePropertyAccessor; //导入依赖的package包/类
@Override
public TypedValue getValue() {
	Class<?> targetObjectRuntimeClass = getObjectClass(this.targetObject);
	try {
		if (Indexer.this.cachedReadName != null && Indexer.this.cachedReadName.equals(this.name) &&
				Indexer.this.cachedReadTargetType != null &&
				Indexer.this.cachedReadTargetType.equals(targetObjectRuntimeClass)) {
			// It is OK to use the cached accessor
			return Indexer.this.cachedReadAccessor.read(this.evaluationContext, this.targetObject, this.name);
		}
		List<PropertyAccessor> accessorsToTry = AstUtils.getPropertyAccessorsToTry(
				targetObjectRuntimeClass, this.evaluationContext.getPropertyAccessors());
		if (accessorsToTry != null) {
			for (PropertyAccessor accessor : accessorsToTry) {
				if (accessor.canRead(this.evaluationContext, this.targetObject, this.name)) {
					if (accessor instanceof ReflectivePropertyAccessor) {
						accessor = ((ReflectivePropertyAccessor) accessor).createOptimalAccessor(
								this.evaluationContext, this.targetObject, this.name);
					}
					Indexer.this.cachedReadAccessor = accessor;
					Indexer.this.cachedReadName = this.name;
					Indexer.this.cachedReadTargetType = targetObjectRuntimeClass;
					if (accessor instanceof ReflectivePropertyAccessor.OptimalPropertyAccessor) {
						ReflectivePropertyAccessor.OptimalPropertyAccessor optimalAccessor =
								(ReflectivePropertyAccessor.OptimalPropertyAccessor) accessor;
						Member member = optimalAccessor.member;
						Indexer.this.exitTypeDescriptor = CodeFlow.toDescriptor(member instanceof Method ?
								((Method) member).getReturnType() : ((Field) member).getType());
					}
					return accessor.read(this.evaluationContext, this.targetObject, this.name);
				}
			}
		}
	}
	catch (AccessException ex) {
		throw new SpelEvaluationException(getStartPosition(), ex, SpelMessage.INDEXING_NOT_SUPPORTED_FOR_TYPE,
				this.targetObjectTypeDescriptor.toString());
	}
	throw new SpelEvaluationException(getStartPosition(), SpelMessage.INDEXING_NOT_SUPPORTED_FOR_TYPE,
			this.targetObjectTypeDescriptor.toString());
}