Java Code Examples for org.apache.hadoop.io.file.tfile.TFile#Reader
The following examples show how to use
org.apache.hadoop.io.file.tfile.TFile#Reader .
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Example 1
Source File: TFileParser.java From reef with Apache License 2.0 | 6 votes |
/** * @param path * @return * @throws IOException */ private TFile.Reader.Scanner getScanner(final Path path) throws IOException { LOG.log(Level.FINE, "Creating Scanner for path {0}", path); final TFile.Reader reader = new TFile.Reader(this.fileSystem.open(path), this.fileSystem.getFileStatus(path).getLen(), this.configuration); final TFile.Reader.Scanner scanner = reader.createScanner(); for (int counter = 0; counter < 3 && !scanner.atEnd(); counter += 1) { //skip VERSION, APPLICATION_ACL, and APPLICATION_OWNER scanner.advance(); } LOG.log(Level.FINE, "Created Scanner for path {0}", path); return scanner; }
Example 2
Source File: AggregatedLogFormat.java From hadoop with Apache License 2.0 | 5 votes |
public LogReader(Configuration conf, Path remoteAppLogFile) throws IOException { FileContext fileContext = FileContext.getFileContext(remoteAppLogFile.toUri(), conf); this.fsDataIStream = fileContext.open(remoteAppLogFile); reader = new TFile.Reader(this.fsDataIStream, fileContext.getFileStatus( remoteAppLogFile).getLen(), conf); this.scanner = reader.createScanner(); }
Example 3
Source File: FileSystemApplicationHistoryStore.java From hadoop with Apache License 2.0 | 5 votes |
public HistoryFileReader(Path historyFile) throws IOException { fsdis = fs.open(historyFile); reader = new TFile.Reader(fsdis, fs.getFileStatus(historyFile).getLen(), getConfig()); reset(); }
Example 4
Source File: AggregatedLogFormat.java From big-c with Apache License 2.0 | 5 votes |
public LogReader(Configuration conf, Path remoteAppLogFile) throws IOException { FileContext fileContext = FileContext.getFileContext(conf); this.fsDataIStream = fileContext.open(remoteAppLogFile); reader = new TFile.Reader(this.fsDataIStream, fileContext.getFileStatus( remoteAppLogFile).getLen(), conf); this.scanner = reader.createScanner(); }
Example 5
Source File: FileSystemApplicationHistoryStore.java From big-c with Apache License 2.0 | 5 votes |
public HistoryFileReader(Path historyFile) throws IOException { fsdis = fs.open(historyFile); reader = new TFile.Reader(fsdis, fs.getFileStatus(historyFile).getLen(), getConfig()); reset(); }
Example 6
Source File: TFileRecordReader.java From tez with Apache License 2.0 | 5 votes |
@Override public void initialize(InputSplit split, TaskAttemptContext context) throws IOException, InterruptedException { FileSplit fileSplit = (FileSplit) split; LOG.info("Initializing TFileRecordReader : " + fileSplit.getPath().toString()); start = fileSplit.getStart(); end = start + fileSplit.getLength(); FileSystem fs = fileSplit.getPath().getFileSystem(context.getConfiguration()); splitPath = fileSplit.getPath(); fin = fs.open(splitPath); reader = new TFile.Reader(fin, fs.getFileStatus(splitPath).getLen(), context.getConfiguration()); scanner = reader.createScannerByByteRange(start, fileSplit.getLength()); }