/**
* Java Modular Image Synthesis Toolkit (JMIST)
* Copyright (C) 2008-2013 Bradley W. Kimmel
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
package ca.eandb.jmist.framework.loader.openexr.attribute;
import java.io.DataInput;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import ca.eandb.util.UnexpectedException;
/**
* @author brad
*
*/
final class MethodAttributeReader implements AttributeReader {
private final Method method;
MethodAttributeReader(Method method) {
Class<?>[] paramTypes = method.getParameterTypes();
Class<?> returnType = method.getReturnType();
if (paramTypes.length != 2 || paramTypes[0] != DataInput.class || paramTypes[1] != int.class || !Attribute.class.isAssignableFrom(returnType)) {
throw new IllegalArgumentException("Incorrect signature");
}
this.method = method;
}
/* (non-Javadoc)
* @see ca.eandb.jmist.framework.loader.openexr.AttributeReader#read(java.io.DataInput, int)
*/
@Override
public Attribute read(DataInput in, int size) throws IOException {
try {
return (Attribute) method.invoke(null, in, size);
} catch (IllegalArgumentException e) {
throw new UnexpectedException(e);
} catch (IllegalAccessException e) {
throw new UnexpectedException(e);
} catch (InvocationTargetException e) {
if (e.getCause() instanceof IOException) {
throw (IOException) e.getCause();
} else {
throw new UnexpectedException(e);
}
}
}
}