/jboss-as-7.1.1.Final/jpa/hibernate3/src/main/java/org/jboss/as/jpa/hibernate3/HibernateVirtualFileNamedInputStream.java

/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2011, Red Hat, Inc., and individual contributors
 * as indicated by the @author tags. See the copyright.txt file 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.as.jpa.hibernate3;

import static org.jboss.as.jpa.JpaMessages.MESSAGES;

import java.io.IOException;
import java.io.InputStream;

import org.jboss.vfs.VirtualFile;

/**
 * VFS named input stream.
 *
 * @author <a href="mailto:ales.justin@jboss.org">Ales Justin</a>
 * @author Scott Marlow
 */
public class HibernateVirtualFileNamedInputStream extends HibernateLazyNamedInputStream {

    private final VirtualFile file;

    private static String name(VirtualFile file) {
        if (file == null)
            throw MESSAGES.nullVar("file");
        return file.getName();
    }

    public HibernateVirtualFileNamedInputStream(VirtualFile file) {
        super(name(file));
        this.file = file;
    }

    protected InputStream getLazyStream() throws IOException {
        return file.openStream();
    }
}