org.apache.hudi.common.fs.SchemeAwareFSDataInputStream Maven / Gradle / Ivy
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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,
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* See the License for the specific language governing permissions and
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*/
package org.apache.hudi.common.fs;
import org.apache.hadoop.fs.FSDataInputStream;
import java.io.EOFException;
import java.io.IOException;
import java.io.InputStream;
/**
* Scheme aware FSDataInputStream so that we manipulate seeks for GS filesystem.
*/
public class SchemeAwareFSDataInputStream extends FSDataInputStream {
private final boolean isGCSFileSystem;
public SchemeAwareFSDataInputStream(InputStream in, boolean isGCSFileSystem) {
super(in);
this.isGCSFileSystem = isGCSFileSystem;
}
@Override
public void seek(long desired) throws IOException {
try {
super.seek(desired);
} catch (EOFException e) {
// with GCSFileSystem, accessing the last byte might throw EOFException and hence this fix.
if (isGCSFileSystem) {
super.seek(desired - 1);
} else {
throw e;
}
}
}
}