/**
*
* Licensed 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.
*
* @author: Sriram Rao (Kosmix Corp.)
*
* Provide the implementation of KFS which turn into calls to KfsAccess.
*/
package org.apache.hadoop.fs.kfs;
import java.io.*;
import org.apache.hadoop.fs.FSDataInputStream;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.FileSystem;
import org.kosmix.kosmosfs.access.KfsAccess;
class KFSImpl implements IFSImpl {
private KfsAccess kfsAccess = null;
private FileSystem.Statistics statistics;
@Deprecated
public KFSImpl(String metaServerHost, int metaServerPort
) throws IOException {
this(metaServerHost, metaServerPort, null);
}
public KFSImpl(String metaServerHost, int metaServerPort,
FileSystem.Statistics stats) throws IOException {
kfsAccess = new KfsAccess(metaServerHost, metaServerPort);
statistics = stats;
}
public boolean exists(String path) throws IOException {
return kfsAccess.kfs_exists(path);
}
public boolean isDirectory(String path) throws IOException {
return kfsAccess.kfs_isDirectory(path);
}
public boolean isFile(String path) throws IOException {
return kfsAccess.kfs_isFile(path);
}
public String[] readdir(String path) throws IOException {
return kfsAccess.kfs_readdir(path);
}
public int mkdirs(String path) throws IOException {
return kfsAccess.kfs_mkdirs(path);
}
public int rename(String source, String dest) throws IOException {
return kfsAccess.kfs_rename(source, dest);
}
public int rmdir(String path) throws IOException {
return kfsAccess.kfs_rmdir(path);
}
public int remove(String path) throws IOException {
return kfsAccess.kfs_remove(path);
}
public long filesize(String path) throws IOException {
return kfsAccess.kfs_filesize(path);
}
public short getReplication(String path) throws IOException {
return kfsAccess.kfs_getReplication(path);
}
public short setReplication(String path, short replication) throws IOException {
return kfsAccess.kfs_setReplication(path, replication);
}
public String[][] getDataLocation(String path, long start, long len) throws IOException {
return kfsAccess.kfs_getDataLocation(path, start, len);
}
public long getModificationTime(String path) throws IOException {
return kfsAccess.kfs_getModificationTime(path);
}
public FSDataOutputStream create(String path, short replication, int bufferSize) throws IOException {
return new FSDataOutputStream(new KFSOutputStream(kfsAccess, path, replication),
statistics);
}
public FSDataInputStream open(String path, int bufferSize) throws IOException {
return new FSDataInputStream(new KFSInputStream(kfsAccess, path,
statistics));
}
}