/* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Android Notice
* In this class the address length was changed from long to int.
* This is due to performance optimizations for the device.
*/
package org.apache.harmony.nio;
import java.nio.channels.FileChannel;
import org.apache.harmony.nio.internal.ReadOnlyFileChannel;
import org.apache.harmony.nio.internal.ReadWriteFileChannel;
import org.apache.harmony.nio.internal.WriteOnlyFileChannel;
import org.apache.harmony.nio.internal.nls.Messages;
import org.apache.harmony.luni.platform.IFileSystem;
/**
* A simple factory to provide a generic way to create FileChannel
* implementation from within the java.io package.
*/
public class FileChannelFactory {
public static FileChannel getFileChannel(Object stream, int fd, int mode) {
switch(mode){
case IFileSystem.O_RDONLY:
return new ReadOnlyFileChannel(stream, fd);
case IFileSystem.O_WRONLY:
return new WriteOnlyFileChannel(stream, fd);
case IFileSystem.O_RDWR:
return new ReadWriteFileChannel(stream, fd);
case IFileSystem.O_RDWRSYNC:
return new ReadWriteFileChannel(stream, fd);
case IFileSystem.O_APPEND:
return new WriteOnlyFileChannel(stream, fd, true);
default:
// nio.09=Unknown file channel type: {0}
throw new RuntimeException(Messages.getString("nio.09", mode)); //$NON-NLS-1$
}
}
}