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/**
*
* 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 com.agfa.hap.sdo.mapper;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Collection;
import sun.reflect.generics.reflectiveObjects.NotImplementedException;
import com.agfa.hap.sdo.DataMapper;
import com.agfa.hap.sdo.Property;
import com.agfa.hap.sdo.SnapshotDefinition;
/**
* PropertyAccessor that follows bean conventions (i.e. getX() methods) to get values.
* @author AMOCZ
*/
public class BeanPropertyAccessor implements PropertyAccessor {
private static final Object[] EMPTY_ARGS = new Object[0];
public Object getValue(Object instance, Property property, DataMapper dataMapper) {
if (!isReadable()) {
throw new IllegalArgumentException(instance.getClass() + " doesn't have a getter for property " + property.getName());
}
try {
return getter.invoke(instance, EMPTY_ARGS);
} catch (InvocationTargetException e) {
throw new IllegalArgumentException("Couldn't access property " + property.toString(), e.getTargetException());
} catch (IllegalAccessException e) {
throw new IllegalArgumentException("Couldn't access property " + property.toString(), e);
}
}
/**
* Sets the value of this property for the specified Object.
* @throws IllegalArgumentException
*/
public void setValue(Object instance, Property property, Object newValue, DataMapper dataMapper) {
if (!isWritable()) {
throw new IllegalArgumentException(instance.getClass() + " doesn't have a setter for property " + property.getName());
}
try {
setter.invoke(instance, new Object[] { newValue });
} catch (InvocationTargetException e) {
throw new IllegalArgumentException("Couldn't access property " + property.toString(), e.getTargetException());
} catch (IllegalAccessException e) {
throw new IllegalArgumentException("Couldn't access property " + property.toString(), e);
}
}
public void setGetter(Method method) {
this.getter = method;
}
public void setSetter(Method method) {
this.setter = method;
}
public boolean isReadable() {
return getter != null;
}
public boolean isWritable() {
return setter != null;
}
public Collection<?> getValues(Collection<?> instances, Property property, SnapshotDefinition def, DataMapper dataMapper) {
throw new NotImplementedException();
}
public boolean isBulkAccessor() {
return false;
}
private Method setter;
private Method getter;
}
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