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/**
 * JBoss, Home of Professional Open Source
 * Copyright 2013, Red Hat, Inc. and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.jboss.arquillian.graphene.enricher;

import java.lang.reflect.Method;
import java.net.URL;
import java.util.Collection;

import org.jboss.arquillian.core.api.Instance;
import org.jboss.arquillian.core.api.annotation.Inject;
import org.jboss.arquillian.core.spi.ServiceLoader;
import org.jboss.arquillian.graphene.spi.enricher.SearchContextTestEnricher;
import org.jboss.arquillian.test.api.ArquillianResource;
import org.jboss.arquillian.test.spi.TestEnricher;

/**
 * Graphene enricher calls all {@link SearchContextTestEnricher} instances to start their enrichment.
 *
 * @author Juraj Huska
 * @author Jan Papousek
 */
public class GrapheneEnricher implements TestEnricher {

    @Inject
    private static Instance serviceLoader;

    @ArquillianResource
    private URL contextRoot;

    @Override
    public void enrich(Object o) {
        Collection sortedSearchContextEnrichers = AbstractSearchContextEnricher.getSortedSearchContextEnrichers(serviceLoader);

        for (SearchContextTestEnricher enricher : sortedSearchContextEnrichers) {
            if (isApplicableToTestClass(enricher)) {
                enricher.enrich(null, o);
            }
        }
    }

    /**
     * Returns true if the given enricher should be applied to test class itself.
     */
    private boolean isApplicableToTestClass(SearchContextTestEnricher enricher) {
        if (enricher instanceof FieldAccessValidatorEnricher) {
            // ARQGRA-433: FieldAccessValidator should control only classes instantiated by Graphene, not the Test Case object
            return false;
        }
        return true;
    }

    @Override
    public Object[] resolve(Method method) {
        Collection sortedSearchContextEnrichers =
            AbstractSearchContextEnricher.getSortedSearchContextEnrichers(serviceLoader);

        Object[] resolvedParams = new Object[method.getParameterTypes().length];

        for (SearchContextTestEnricher enricher : sortedSearchContextEnrichers) {
            if (isApplicableToTestClass(enricher)) {
                resolvedParams = enricher.resolve(null, method, resolvedParams);
            }
        }
        return resolvedParams;
    }
}