org.apache.orc.bench.core.NullFileSystem.java Source code

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Here is the source code for org.apache.orc.bench.core.NullFileSystem.java

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/*
 * 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.
 */

package org.apache.orc.bench.core;

import org.apache.hadoop.fs.FSDataInputStream;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.permission.FsPermission;
import org.apache.hadoop.util.Progressable;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URI;
import java.net.URISyntaxException;

public class NullFileSystem extends FileSystem {
    @Override
    public URI getUri() {
        try {
            return new URI("null:///");
        } catch (URISyntaxException e) {
            throw new IllegalArgumentException("Bad URL", e);
        }
    }

    @Override
    public FSDataInputStream open(Path path, int i) {
        return new FSDataInputStream(new InputStream() {
            @Override
            public int read() {
                return -1;
            }
        });
    }

    static class NullOutput extends OutputStream {

        @Override
        public void write(int b) {
            // pass
        }

        public void write(byte[] buffer, int offset, int length) {
            // pass
        }
    }

    private static final OutputStream NULL_OUTPUT = new NullOutput();

    @Override
    public FSDataOutputStream create(Path path, FsPermission fsPermission, boolean b, int i, short i1, long l,
            Progressable progressable) throws IOException {
        return new FSDataOutputStream(NULL_OUTPUT, null);
    }

    @Override
    public FSDataOutputStream append(Path path, int i, Progressable progressable) throws IOException {
        return new FSDataOutputStream(NULL_OUTPUT, null);
    }

    @Override
    public boolean rename(Path path, Path path1) {
        return false;
    }

    @Override
    public boolean delete(Path path, boolean b) {
        return false;
    }

    @Override
    public FileStatus[] listStatus(Path path) {
        return null;
    }

    @Override
    public void setWorkingDirectory(Path path) {
        // pass
    }

    @Override
    public Path getWorkingDirectory() {
        return null;
    }

    @Override
    public boolean mkdirs(Path path, FsPermission fsPermission) {
        return false;
    }

    @Override
    public FileStatus getFileStatus(Path path) {
        return null;
    }
}