/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2013, Red Hat Inc. or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program 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 distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.jpa.boot.internal;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;
import org.hibernate.HibernateException;
import org.hibernate.jpa.boot.archive.spi.ArchiveException;
import org.hibernate.jpa.boot.spi.InputStreamAccess;
import org.hibernate.jpa.boot.spi.NamedInputStream;
/**
* An InputStreamAccess implementation based on a File reference
*
* @author Steve Ebersole
*/
public class FileInputStreamAccess implements InputStreamAccess {
private final String name;
private final File file;
public FileInputStreamAccess(String name, File file) {
this.name = name;
this.file = file;
if ( ! file.exists() ) {
throw new HibernateException( "File must exist : " + file.getAbsolutePath() );
}
}
@Override
public String getStreamName() {
return name;
}
@Override
public InputStream accessInputStream() {
try {
return new BufferedInputStream( new FileInputStream( file ) );
}
catch (FileNotFoundException e) {
// should never ever ever happen, but...
throw new ArchiveException(
"File believed to exist based on File.exists threw error when passed to FileInputStream ctor",
e
);
}
}
@Override
public NamedInputStream asNamedInputStream() {
return new NamedInputStream( getStreamName(), accessInputStream() );
}
}