Examples of org.apache.lucene.store.IndexOutput.seek()

Class org.apache.lucene.store.IndexOutput

Examples of org.apache.lucene.store.IndexOutput.seek()

org.apache.lucene.store.IndexOutput.seek()
Sets current position in this file, where the next write will occur. @see #getFilePointer()


          @SuppressWarnings("deprecation")
          @Override
          public void seek(long pos) throws IOException {
            testOutput.seek(pos);
            controlOutput.seek(pos);
          }


          @Override
          public long length() throws IOException {
            long length = testOutput.length();

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                copyFile(fe, os);
            }


            // Write the data offsets into the directory of the compound stream
            for (FileEntry fe : entries) {
                os.seek(fe.directoryOffset);
                os.writeLong(fe.dataOffset);
            }


            assert finalLength == os.length();

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            // Write the data offsets into the directory of the compound stream
            it = entries.iterator();
            while(it.hasNext()) {
                FileEntry fe = (FileEntry) it.next();
                os.seek(fe.directoryOffset);
                os.writeLong(fe.dataOffset);
            }


            // Close the output stream. Set the os to null before trying to
            // close so that if an exception occurs during the close, the

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            // Write the data offsets into the directory of the compound stream
            it = entries.iterator();
            while(it.hasNext()) {
                FileEntry fe = (FileEntry) it.next();
                os.seek(fe.directoryOffset);
                os.writeLong(fe.dataOffset);
            }


            // Close the output stream. Set the os to null before trying to
            // close so that if an exception occurs during the close, the

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            // Write the data offsets into the directory of the compound stream
            it = entries.iterator();
            while(it.hasNext()) {
                FileEntry fe = (FileEntry) it.next();
                os.seek(fe.directoryOffset);
                os.writeLong(fe.dataOffset);
            }


            // Close the output stream. Set the os to null before trying to
            // close so that if an exception occurs during the close, the

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            // Write the data offsets into the directory of the compound stream
            it = entries.iterator();
            while(it.hasNext()) {
                FileEntry fe = (FileEntry) it.next();
                os.seek(fe.directoryOffset);
                os.writeLong(fe.dataOffset);
            }


            assert finalLength == os.length();

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      final byte[] someTextAsBytes = someText.getBytes();
      //4 points in random order where writing someText: at begin of file, at end of file, within a single chunk,
      //between 2 chunks
      final int[] pointers = {0, 635, REPEATABLE_BUFFER_SIZE, 135};
      for(int i=0; i < pointers.length; i++) {
         io.seek(pointers[i]);
         io.writeBytes(someTextAsBytes, someTextAsBytes.length);
      }


      io.close();
      bytesGenerator.reset();

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      assert new String(new byte[] { 66, 69 }).equals(new String(buf).trim());


      String testText = "This is some rubbish again that will span more than one chunk - one hopes.  Who knows, maybe even three or four chunks.";
      io = dir.createOutput("MyNewFile.txt");
      io.seek(0);
      io.writeBytes(testText.getBytes(), 0, testText.length());
      io.close();
      // now compare.
      byte[] chunk1 = (byte[]) cache.get(new ChunkCacheKey(INDEXNAME, "MyNewFile.txt", 0, BUFFER_SIZE));
      byte[] chunk2 = (byte[]) cache.get(new ChunkCacheKey(INDEXNAME, "MyNewFile.txt", 1, BUFFER_SIZE));

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            // Write the data offsets into the directory of the compound stream
            it = entries.iterator();
            while(it.hasNext()) {
                FileEntry fe = (FileEntry) it.next();
                os.seek(fe.directoryOffset);
                os.writeLong(fe.dataOffset);
            }


            // Close the output stream. Set the os to null before trying to
            // close so that if an exception occurs during the close, the

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            // Write the data offsets into the directory of the compound stream
            it = entries.iterator();
            while(it.hasNext()) {
                FileEntry fe = (FileEntry) it.next();
                os.seek(fe.directoryOffset);
                os.writeLong(fe.dataOffset);
            }


            assert finalLength == os.length();

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