CachedAuxilliaryArchiveAppender.java

/*
 * JBoss, Home of Professional Open Source
 * Copyright 2011 Red Hat Inc. and/or its affiliates and other contributors
 * as indicated by the @authors tag. All rights reserved.
 * See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * 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 org.jboss.arquillian.container.test.spi.client.deployment;

import java.util.HashMap;
import java.util.Map;
import org.jboss.shrinkwrap.api.Archive;

/**
 * CachedAuxilliaryArchiveAppender
 *
 * @author <a href="mailto:aslak@redhat.com">Aslak Knutsen</a>
 * @version $Revision: $
 */
public abstract class CachedAuxilliaryArchiveAppender implements AuxiliaryArchiveAppender {
    private static Map<Class<?>, Archive<?>> cached = new HashMap<Class<?>, Archive<?>>();

    /* (non-Javadoc)
     * @see org.jboss.arquillian.container.test.spi.client.deployment.AuxiliaryArchiveAppender#createAuxiliaryArchive()
     */
    @Override
    public final Archive<?> createAuxiliaryArchive() {
        if (!cached.containsKey(getClass())) {
            cached.put(getClass(), buildArchive());
        }
        return cached.get(getClass());
    }

    protected abstract Archive<?> buildArchive();
}