/* | |
* Licensed to the Apache Software Foundation (ASF) under one | |
* or more contributor license agreements. See the NOTICE file | |
* distributed with this work for additional information | |
* regarding copyright ownership. The ASF licenses this file | |
* to you under the Apache License, Version 2.0 (the | |
* "License"); you may not use this file except in compliance | |
* with the License. You may obtain a copy of the License at | |
* | |
* http://www.apache.org/licenses/LICENSE-2.0 | |
* | |
* Unless required by applicable law or agreed to in writing, | |
* software distributed under the License is distributed on an | |
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
* KIND, either express or implied. See the License for the | |
* specific language governing permissions and limitations | |
* under the License. | |
*/ | |
/** | |
*/ | |
package org.apache.commons.ognl.test.objects; | |
import org.apache.commons.ognl.ObjectPropertyAccessor; | |
import org.apache.commons.ognl.OgnlContext; | |
import org.apache.commons.ognl.OgnlException; | |
import org.apache.commons.ognl.OgnlRuntime; | |
import org.apache.commons.ognl.PropertyAccessor; | |
import org.apache.commons.ognl.enhance.ExpressionCompiler; | |
import org.apache.commons.ognl.enhance.UnsupportedCompilationException; | |
import java.util.Map; | |
/** | |
* Implementation of provider that works with {@link BeanProvider} instances. | |
*/ | |
public class BeanProviderAccessor | |
extends ObjectPropertyAccessor | |
implements PropertyAccessor | |
{ | |
@Override | |
public Object getProperty( Map<String, Object> context, Object target, Object name ) | |
throws OgnlException | |
{ | |
BeanProvider provider = (BeanProvider) target; | |
String beanName = (String) name; | |
return provider.getBean( beanName ); | |
} | |
/** | |
* Returns true if the name matches a bean provided by the provider. Otherwise invokes the super implementation. | |
**/ | |
@Override | |
public boolean hasGetProperty( Map<String, Object> context, Object target, Object oname ) | |
throws OgnlException | |
{ | |
BeanProvider provider = (BeanProvider) target; | |
String beanName = ( (String) oname ).replace( "\"", "" ); | |
return provider.getBean( beanName ) != null; | |
} | |
@Override | |
public String getSourceAccessor( OgnlContext context, Object target, Object name ) | |
{ | |
BeanProvider provider = (BeanProvider) target; | |
String beanName = ( (String) name ).replace( "\"", "" ); | |
if ( provider.getBean( beanName ) != null ) | |
{ | |
context.setCurrentAccessor( BeanProvider.class ); | |
context.setCurrentType( provider.getBean( beanName ).getClass() ); | |
ExpressionCompiler.addCastString( context, | |
"((" | |
+ OgnlRuntime.getCompiler( context ).getInterfaceClass( provider.getBean( beanName ).getClass() ).getName() | |
+ ")" ); | |
return ".getBean(\"" + beanName + "\"))"; | |
} | |
return super.getSourceAccessor( context, target, name ); | |
} | |
@Override | |
public String getSourceSetter( OgnlContext context, Object target, Object name ) | |
{ | |
throw new UnsupportedCompilationException( "Can't set beans on BeanProvider." ); | |
} | |
} |