Package org.apache.hadoop.io.compress

Examples of org.apache.hadoop.io.compress.CompressionCodec.createInputStream()

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          CompressionCodec codec = codecFac.getCodecByClassName(codecClassName);
          if (codec == null) {
            throw new IOException("Image compression codec not supported: "
                + codecClassName);
          }
          in = new DataInputStream(codec.createInputStream(in));
        }
      }
      processINodes(in, v, numInodes, skipBlocks, supportSnapshot);
      subtreeMap.clear();
      dirNodeMap.clear();
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    // open the file and seek to the start of the split
    FileSystem fs = file.getFileSystem(job);
    FSDataInputStream fileIn = fs.open(split.getPath());
    boolean skipFirstLine = false;
    if (codec != null) {
      in = new LineReader(codec.createInputStream(fileIn), job);
      end = Long.MAX_VALUE;
    } else {
      if (start != 0) {
        skipFirstLine = true;
        --start;
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          CompressionCodec codec = codecFac.getCodecByClassName(codecClassName);
          if (codec == null) {
            throw new IOException("Image compression codec not supported: "
                + codecClassName);
          }
          in = new DataInputStream(codec.createInputStream(in));
        }
      }
      processINodes(in, v, numInodes, skipBlocks);

      processINodesUC(in, v, skipBlocks);
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          CompressionCodec codec = codecFac.getCodecByClassName(codecClassName);
          if (codec == null) {
            throw new IOException("Image compression codec not supported: "
                + codecClassName);
          }
          in = new DataInputStream(codec.createInputStream(in));
        }
      }
      processINodes(in, v, numInodes, skipBlocks);

      processINodesUC(in, v, skipBlocks);
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      // open the file and seek to the start of the split
      FileSystem fs = file.getFileSystem(conf);
      FSDataInputStream fileIn = fs.open(split.getPath());
      if(codec != null) {
        in = new LineReader(codec.createInputStream(fileIn), conf);
        end = Long.MAX_VALUE;
      } else {
        if(start != 0) {
          // Skipping first line because we are not the first split, so start could not be
          // the start of the record
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          CompressionCodec codec = codecFac.getCodecByClassName(codecClassName);
          if (codec == null) {
            throw new IOException("Image compression codec not supported: "
                + codecClassName);
          }
          in = new DataInputStream(codec.createInputStream(in));
        }
      }
      processINodes(in, v, numInodes, skipBlocks);

      processINodesUC(in, v, skipBlocks);
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      // open the file and seek to the start of the split
      FileSystem fs = file.getFileSystem(job);
      FSDataInputStream fileIn = fs.open(split.getPath());
      boolean skipFirstLine = false;
      if (codec != null) {
        in = new LineReader(codec.createInputStream(fileIn), job);
        end = Long.MAX_VALUE;
      } else {
        if (start != 0) {
          skipFirstLine = true;
          --start;
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      FileSystem fs = file.getFileSystem(conf);

      if (codec != null) {
        LOG.info("Reading compressed file " + file + "...");
        fsin = new DataInputStream(codec.createInputStream(fs.open(file)));

        end = Long.MAX_VALUE;
      } else {
        LOG.info("Reading uncompressed file " + file + "...");
        FSDataInputStream fileIn = fs.open(file);
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      FileSystem fs = file.getFileSystem(jobConf);

      if (codec != null) {
        LOG.info("Reading compressed file...");

        fsin = new DataInputStream(codec.createInputStream(fs.open(file)));

        end = Long.MAX_VALUE;
      } else {
        LOG.info("Reading uncompressed file...");
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      FileSystem fs = FileSystem.get(conf);
      path = split.getPath();

      CompressionCodecFactory compressionCodecs = new CompressionCodecFactory(conf);
      CompressionCodec compressionCodec = compressionCodecs.getCodec(path);
      input = new DataInputStream(compressionCodec.createInputStream(fs.open(path)));
    }

    @Override
    public boolean next(LongWritable key, ClueWarcRecord value) throws IOException {
      DataInputStream whichStream = input;
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