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

Class org.apache.lucene.store.IndexInput

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

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

      } catch (IOException ioe) {
        if (format == FORMAT_PRE) {
          // LUCENE-1623: FORMAT_PRE (before there was a
          // format) may be 2.3.2 (pre-utf8) or 2.4.x (utf8)
          // encoding; retry with input set to pre-utf8
          input.seek(0);
          input.setModifiedUTF8StringsMode();
          byNumber.clear();
          byName.clear();
          try {
            read(input, name);

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        return null;
      else {
        if (fieldsData == null) {
          IndexInput localFieldsStream = getFieldStream();
          try {
            localFieldsStream.seek(pointer);
            if (isCompressed) {
              final byte[] b = new byte[toRead];
              localFieldsStream.readBytes(b, 0, b.length);
              fieldsData = new String(uncompress(b), "UTF-8");
            } else {

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          IndexInput localFieldsStream = getFieldStream();


          // Throw this IOException since IndexReader.document does so anyway, so probably not that big of a change for people
          // since they are already handling this exception when getting the document
          try {
            localFieldsStream.seek(pointer);
            localFieldsStream.readBytes(b, 0, toRead);
            if (isCompressed == true) {
              fieldsData = uncompress(b);
            } else {
              fieldsData = b;

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      else {
        if (fieldsData == null) {
          IndexInput localFieldsStream = getFieldStream();
      String value;
          try {
            localFieldsStream.seek(pointer);
            if (isCompressed) {
              final byte[] b = new byte[toRead];
              localFieldsStream.readBytes(b, 0, b.length);
              value = new String(uncompress(b), "UTF-8");
            } else {

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          IndexInput localFieldsStream = getFieldStream();


          // Throw this IOException since IndexReader.document does so anyway, so probably not that big of a change for people
          // since they are already handling this exception when getting the document
          try {
            localFieldsStream.seek(pointer);
            localFieldsStream.readBytes(b, 0, toRead);
            if (isCompressed == true) {
              value = uncompress(b);
            } else {
              value = b;

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      } catch (IOException ioe) {
        if (format == FORMAT_PRE) {
          // LUCENE-1623: FORMAT_PRE (before there was a
          // format) may be 2.3.2 (pre-utf8) or 2.4.x (utf8)
          // encoding; retry with input set to pre-utf8
          input.seek(0);
          input.setModifiedUTF8StringsMode();
          byNumber.clear();
          byName.clear();
          try {
            read(input, name);

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        // ERROR: this call should fail, but succeeds because the buffer
        // is still filled
        in.readByte();


        // ERROR: this call should fail, but succeeds for some reason as well
        in.seek(1099);


        try {
            // OK: this call correctly fails. We are now past the 1024 internal
            // buffer, so an actual IO is attempted, which fails
            in.readByte();

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        // The following should really fail since we couldn't expect to
        // access a file once close has been called on it (regardless of
        // buffering and/or clone magic)
        expected.seek(0);
        two.seek(0);
        assertSameStreams("basic clone two/2", expected, two);




        // Now close the compound reader
        cr.close();

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        assertFalse("Now closed one", isCSIndexInputOpen(one));
        assertFalse("Now closed two", isCSIndexInputOpen(two));


        // The following may also fail since the compound stream is closed
        expected.seek(0);
        two.seek(0);
        //assertSameStreams("basic clone two/3", expected, two);




        // Now close the second clone
        two.close();

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        // Now close the second clone
        two.close();
        expected.seek(0);
        two.seek(0);
        //assertSameStreams("basic clone two/4", expected, two);


        expected.close();
    }

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