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A thundr module enabling thundr for use on GAE (Google App Engine)

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/*
 * This file is a component of thundr, a software library from 3wks.
 * Read more: http://3wks.github.io/thundr/
 * Copyright (C) 2015 3wks, 
 *
 * Licensed 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.threewks.thundr.search.gae.meta;

import com.threewks.thundr.search.SearchException;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

public class MethodAccessor implements Accessor {
	private Class type;
	private String name;
	private String encodedName;
	private String methodName;
	private Class methodType;
	private Method method;
	private IndexType indexType;

	@SuppressWarnings("unchecked")
	public MethodAccessor(Class type, Method method, String name, String encodedName, IndexType indexType) {
		try {
			this.type = type;
			this.method = method;
			this.method.setAccessible(true);
			this.methodType = (Class) this.method.getReturnType();
			this.name = name;
			this.encodedName = encodedName;
			this.methodName = method.getName();
			this.indexType = indexType;
		} catch (SecurityException e) {
			throw new SearchException(e, "Unable to access method '%s.%s': %s", type.getSimpleName(), methodName, e.getMessage());
		}
	}

	@Override
	public String getName() {
		return name;
	}

	@Override
	public String getEncodedName() {
		return encodedName;
	}

	@Override
	public Class getType() {
		return methodType;
	}

	@Override
	public IndexType getIndexType() {
		return indexType;
	}

	@SuppressWarnings("unchecked")
	@Override
	public V get(T t) {
		try {
			return (V) method.invoke(t);
		} catch (IllegalArgumentException | IllegalAccessException | InvocationTargetException e) {
			throw new SearchException(e, "Failed to call method '%s.%s': %s", type.getSimpleName(), methodName, e.getMessage());
		}
	}

}