/**
 * Licensed to Apereo under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright ownership. Apereo
 * 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 the
 * following location:
 *
 * <p>http://www.apache.org/licenses/LICENSE-2.0
 *
 * <p>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.apereo.portal.spring;

import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.reset;

import com.google.common.collect.MapMaker;
import java.util.Collections;
import java.util.Set;
import org.springframework.beans.factory.config.AbstractFactoryBean;

/**
 * Factory for creating Mockito objects as beans.
 *
 */
public class MockitoFactoryBean<T> extends AbstractFactoryBean<T> {
    private static final Set<Object> MOCK_CACHE =
            Collections.newSetFromMap(new MapMaker().weakKeys().<Object, Boolean>makeMap());

    public static void resetAllMocks() {
        reset(MOCK_CACHE.toArray());
    }

    private final Class<? extends T> type;

    public MockitoFactoryBean(Class<? extends T> type) {
        this.type = type;
    }

    @Override
    public Class<? extends T> getObjectType() {
        return this.type;
    }

    @Override
    protected T createInstance() throws Exception {
        final T mock = mock(this.type);
        MOCK_CACHE.add(mock);
        return mock;
    }

    @Override
    protected void destroyInstance(T instance) throws Exception {
        MOCK_CACHE.remove(instance);
    }
}