dfspath.java

hadoop:Nutch集群平台

/**
 * Copyright 2005 The Apache Software Foundation
 *
 * 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.
 */
package org.apache.hadoop.dfs;

import org.apache.hadoop.fs.Path;


/** 
 * DfsPath is a Path that's been annotated with some extra information.
 * The point of this class is to pass back the "common" metadata about 
 * a file with the names in a directory listing to make accesses faster.
 */
class DfsPath extends Path {
    DFSFileInfo info;

    public DfsPath(DFSFileInfo info) {
        super(info.getPath());
        this.info = info;
    }

    public boolean isDirectory() {
        return info.isDir();
    }
    public boolean isFile() {
        return ! isDirectory();
    }
    public long length() {
        return info.getLen();
    }
    public long getContentsLength() {
        return info.getContentsLen();
    }
    public short getReplication() {
      return info.getReplication();
    }
    public long getBlockSize() {
      return info.getBlockSize();
    }
}