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ORC: Add FileIO support for readers and writers (apache#6293)
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orc/src/main/java/org/apache/iceberg/orc/FileIOFSUtil.java
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|---|---|---|
| @@ -0,0 +1,164 @@ | ||
| /* | ||
| * 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.iceberg.orc; | ||
|
|
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| import java.io.FileNotFoundException; | ||
| import java.io.IOException; | ||
| import java.io.OutputStream; | ||
| import java.net.URI; | ||
| 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 org.apache.iceberg.hadoop.HadoopStreams; | ||
| import org.apache.iceberg.io.InputFile; | ||
| import org.apache.iceberg.io.OutputFile; | ||
| import org.apache.iceberg.relocated.com.google.common.base.Preconditions; | ||
|
|
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| class FileIOFSUtil { | ||
| private FileIOFSUtil() {} | ||
|
|
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| private static class NullFileSystem extends FileSystem { | ||
|
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| @Override | ||
| public URI getUri() { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
|
|
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| @Override | ||
| public FSDataInputStream open(Path f) throws IOException { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
|
|
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| @Override | ||
| public FSDataInputStream open(Path f, int bufferSize) throws IOException { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
|
|
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| @Override | ||
| public FSDataOutputStream create( | ||
| Path f, | ||
| FsPermission permission, | ||
| boolean overwrite, | ||
| int bufferSize, | ||
| short replication, | ||
| long blockSize, | ||
| Progressable progress) | ||
| throws IOException { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
|
|
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| @Override | ||
| public FSDataOutputStream append(Path f, int bufferSize, Progressable progress) | ||
| throws IOException { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
|
|
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| @Override | ||
| public boolean rename(Path src, Path dst) throws IOException { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
|
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| @Override | ||
| public boolean delete(Path f, boolean recursive) throws IOException { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
|
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| @Override | ||
| public FileStatus[] listStatus(Path f) throws FileNotFoundException, IOException { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
|
|
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| @Override | ||
| public void setWorkingDirectory(Path new_dir) { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
|
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| @Override | ||
| public Path getWorkingDirectory() { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
|
|
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| @Override | ||
| public boolean mkdirs(Path f, FsPermission permission) throws IOException { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
|
|
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| @Override | ||
| public FileStatus getFileStatus(Path f) throws IOException { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
| } | ||
|
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| static class InputFileSystem extends NullFileSystem { | ||
| private final InputFile inputFile; | ||
| private final Path inputPath; | ||
|
|
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| InputFileSystem(InputFile inputFile) { | ||
| this.inputFile = inputFile; | ||
| this.inputPath = new Path(inputFile.location()); | ||
| } | ||
|
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| @Override | ||
| public FSDataInputStream open(Path f) throws IOException { | ||
| Preconditions.checkArgument( | ||
| f.equals(inputPath), String.format("Input %s does not equal expected %s", f, inputPath)); | ||
| return new FSDataInputStream(HadoopStreams.wrap(inputFile.newStream())); | ||
| } | ||
|
|
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| @Override | ||
| public FSDataInputStream open(Path f, int bufferSize) throws IOException { | ||
| return open(f); | ||
| } | ||
| } | ||
|
|
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| static class OutputFileSystem extends NullFileSystem { | ||
| private final OutputFile outputFile; | ||
| private final Path outPath; | ||
|
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| OutputFileSystem(OutputFile outputFile) { | ||
| this.outputFile = outputFile; | ||
| this.outPath = new Path(outputFile.location()); | ||
| } | ||
|
|
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| @Override | ||
| public FSDataOutputStream create(Path f, boolean overwrite) throws IOException { | ||
| Preconditions.checkArgument( | ||
| f.equals(outPath), String.format("Input %s does not equal expected %s", f, outPath)); | ||
| OutputStream outputStream = overwrite ? outputFile.createOrOverwrite() : outputFile.create(); | ||
| return new FSDataOutputStream(outputStream, null); | ||
| } | ||
|
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| @Override | ||
| public FSDataOutputStream create( | ||
| Path f, | ||
| FsPermission permission, | ||
| boolean overwrite, | ||
| int bufferSize, | ||
| short replication, | ||
| long blockSize, | ||
| Progressable progress) | ||
| throws IOException { | ||
| return create(f, overwrite); | ||
| } | ||
| } | ||
| } |
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