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

 1/*
 2 * JBoss, Home of Professional Open Source.
 3 * Copyright 2011, Red Hat, Inc., and individual contributors
 4 * as indicated by the @author tags. See the copyright.txt file in the
 5 * distribution for a full listing of individual contributors.
 6 *
 7 * This is free software; you can redistribute it and/or modify it
 8 * under the terms of the GNU Lesser General Public License as
 9 * published by the Free Software Foundation; either version 2.1 of
10 * the License, or (at your option) any later version.
11 *
12 * This software is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this software; if not, write to the Free
19 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21 */
22
23package org.jboss.as.jpa.hibernate3;
24
25import static org.jboss.as.jpa.JpaMessages.MESSAGES;
26
27import java.io.IOException;
28import java.io.InputStream;
29
30import org.jboss.vfs.VirtualFile;
31
32/**
33 * VFS named input stream.
34 *
35 * @author <a href="mailto:ales.justin@jboss.org">Ales Justin</a>
36 * @author Scott Marlow
37 */
38public class HibernateVirtualFileNamedInputStream extends HibernateLazyNamedInputStream {
39
40    private final VirtualFile file;
41
42    private static String name(VirtualFile file) {
43        if (file == null)
44            throw MESSAGES.nullVar("file");
45        return file.getName();
46    }
47
48    public HibernateVirtualFileNamedInputStream(VirtualFile file) {
49        super(name(file));
50        this.file = file;
51    }
52
53    protected InputStream getLazyStream() throws IOException {
54        return file.openStream();
55    }
56}