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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2009-2012 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
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 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

package org.glassfish.javaee.full.deployment;

import org.jvnet.hk2.annotations.Service;
import org.glassfish.api.deployment.DeploymentContext;
import org.glassfish.api.deployment.archive.ReadableArchive;
import org.glassfish.api.deployment.archive.ArchiveType;
import org.glassfish.hk2.api.ServiceLocator;
import org.glassfish.internal.deployment.GenericSniffer;
import org.glassfish.deployment.common.DeploymentUtils;
import com.sun.enterprise.deployment.EarType;
import javax.inject.Inject;

import java.util.List;
import java.util.ArrayList;

/**
 * Ear sniffers snifs ear files.
 *
 * @author Jerome Dochez
 */
@Service(name="ear")
public class EarSniffer extends GenericSniffer {

    @Inject EarType earType;
    @Inject ServiceLocator locator;

    public EarSniffer() {
        super("ear", "META-INF/application.xml", null);
    }

    public String[] getContainersNames() {
        return new String[] { "org.glassfish.javaee.full.deployment.EarContainer"};
    }                                                                              

    /**
     * Returns true if the passed file or directory is recognized by this
     * composite sniffer.
     * @param context deployment context
     * @return true if the location is recognized by this sniffer
     */
    @Override
    public boolean handles(DeploymentContext context) {
        ArchiveType archiveType = habitat.getService(ArchiveType.class, context.getArchiveHandler().getArchiveType());
        if (archiveType != null && !supportsArchiveType(archiveType)) {
            return false;
        }
        return DeploymentUtils.isArchiveOfType(context.getSource(), earType, context, locator);
    }

    /**
     * Returns true if the passed file or directory is recognized by this
     * instance.
     *
     * @param location the file or directory to explore
     * @return true if this sniffer handles this application type
     */
    @Override
    public boolean handles(ReadableArchive location) {
        return DeploymentUtils.isArchiveOfType(location, earType, locator);
    }

    /**
     * @return whether this sniffer should be visible to user
     *
     */
    public boolean isUserVisible() {
        return true;
    }

    /**
     * @return whether this sniffer represents a Java EE container type
     *
     */
    public boolean isJavaEE() {
        return true;
    }

    /**
     *
     * This API is used to help determine if the sniffer should recognize
     * the current archive.
     * If the sniffer does not support the archive type associated with
     * the current deployment, the sniffer should not recognize the archive.
     *
     * @param archiveType the archive type to check
     * @return whether the sniffer supports the archive type
     *
     */
    public boolean supportsArchiveType(ArchiveType archiveType) {
        if (archiveType.equals(earType)) {
            return true;
        }
        return false;
    }

    private static final List deploymentConfigurationPaths =
            initDeploymentConfigurationPaths();

    private static List initDeploymentConfigurationPaths() {
        final List result = new ArrayList();
        result.add("META-INF/application.xml");
        result.add("META-INF/sun-application.xml");
        result.add("META-INF/glassfish-application.xml");
        result.add("META-INF/weblogic-application.xml");
        return result;
    }

    /**
     * Returns the descriptor paths that might exist at the root of the 
     * ear.
     *
     * @return list of the deployment descriptor paths
     */
    @Override
    protected List getDeploymentConfigurationPaths() {
        return deploymentConfigurationPaths;
    }

}