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()

        try {
          //System.out.println(Thread.currentThread().getName() + ": get docID=" + docID + " in=" + in);
          if (docID < 0 || docID >= maxDoc) {
            throw new IndexOutOfBoundsException("docID must be 0 .. " + (maxDoc-1) + "; got " + docID);
          }
          in.seek(field.dataStartFilePointer + (1+field.pattern.length()+2)*docID);
          SimpleTextUtil.readLine(in, scratch);
          //System.out.println("parsing delta: " + scratch.utf8ToString());
          BigDecimal bd;
          try {
            bd = (BigDecimal) decoder.parse(scratch.utf8ToString());

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    final BytesRef scratch = new BytesRef();
    return new Bits() {
      @Override
      public boolean get(int index) {
        try {
          in.seek(field.dataStartFilePointer + (1+field.pattern.length()+2)*index);
          SimpleTextUtil.readLine(in, scratch); // data
          SimpleTextUtil.readLine(in, scratch); // 'T' or 'F'
          return scratch.bytes[scratch.offset] == (byte) 'T';
        } catch (IOException e) {
          throw new RuntimeException(e);

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      public void get(int docID, BytesRef result) {
        try {
          if (docID < 0 || docID >= maxDoc) {
            throw new IndexOutOfBoundsException("docID must be 0 .. " + (maxDoc-1) + "; got " + docID);
          }
          in.seek(field.dataStartFilePointer + (9+field.pattern.length() + field.maxLength+2)*docID);
          SimpleTextUtil.readLine(in, scratch);
          assert StringHelper.startsWith(scratch, LENGTH);
          int len;
          try {
            len = decoder.parse(new String(scratch.bytes, scratch.offset + LENGTH.length, scratch.length - LENGTH.length, "UTF-8")).intValue();

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    return new Bits() {
      @Override
      public boolean get(int index) {
        try {
          in.seek(field.dataStartFilePointer + (9+field.pattern.length() + field.maxLength+2)*index);
          SimpleTextUtil.readLine(in, scratch);
          assert StringHelper.startsWith(scratch, LENGTH);
          int len;
          try {
            len = decoder.parse(new String(scratch.bytes, scratch.offset + LENGTH.length, scratch.length - LENGTH.length, "UTF-8")).intValue();

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      public int getOrd(int docID) {
        if (docID < 0 || docID >= maxDoc) {
          throw new IndexOutOfBoundsException("docID must be 0 .. " + (maxDoc-1) + "; got " + docID);
        }
        try {
          in.seek(field.dataStartFilePointer + field.numValues * (9 + field.pattern.length() + field.maxLength) + docID * (1 + field.ordPattern.length()));
          SimpleTextUtil.readLine(in, scratch);
          try {
            return (int) ordDecoder.parse(scratch.utf8ToString()).longValue()-1;
          } catch (ParseException pe) {
            CorruptIndexException e = new CorruptIndexException("failed to parse ord (resource=" + in + ")");

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      public void lookupOrd(int ord, BytesRef result) {
        try {
          if (ord < 0 || ord >= field.numValues) {
            throw new IndexOutOfBoundsException("ord must be 0 .. " + (field.numValues-1) + "; got " + ord);
          }
          in.seek(field.dataStartFilePointer + ord * (9 + field.pattern.length() + field.maxLength));
          SimpleTextUtil.readLine(in, scratch);
          assert StringHelper.startsWith(scratch, LENGTH): "got " + scratch.utf8ToString() + " in=" + in;
          int len;
          try {
            len = decoder.parse(new String(scratch.bytes, scratch.offset + LENGTH.length, scratch.length - LENGTH.length, "UTF-8")).intValue();

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      public void setDocument(int docID) {
        if (docID < 0 || docID >= maxDoc) {
          throw new IndexOutOfBoundsException("docID must be 0 .. " + (maxDoc-1) + "; got " + docID);
        }
        try {
          in.seek(field.dataStartFilePointer + field.numValues * (9 + field.pattern.length() + field.maxLength) + docID * (1 + field.ordPattern.length()));
          SimpleTextUtil.readLine(in, scratch);
          String ordList = scratch.utf8ToString().trim();
          if (ordList.isEmpty()) {
            currentOrds = new String[0];
          } else {

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          int skip = random().nextInt(10);
          if (skip >= src.length()) {
            skip = 0;
          }
          in.skip(skip);
          src.seek(skip);
          offset = skip;
        }
        src.readBytes(srcBytes, offset, srcBytes.length - offset);
        in.read(inBytes, offset, inBytes.length - offset);
        assertArrayEquals(srcBytes, inBytes);

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


        // 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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