Example usage for org.apache.lucene.store IndexInput readInt

Introduction

In this page you can find the example usage for org.apache.lucene.store IndexInput readInt.

Prototype

public int readInt() throws IOException 

Source Link

Document

Reads four bytes and returns an int.

Usage

From source file:com.bah.lucene.BaseDirectoryTestSuite.java

License:Apache License

@Test
public void testWritingAndReadingAFile() throws IOException {

    IndexOutput output = directory.createOutput("testing.test", IOContext.DEFAULT);
    output.writeInt(12345);// w w  w  .  j  av  a2  s . c  om
    output.flush();
    output.close();

    IndexInput input = directory.openInput("testing.test", IOContext.DEFAULT);
    assertEquals(12345, input.readInt());
    input.close();

    String[] listAll = directory.listAll();
    assertEquals(1, listAll.length);
    assertEquals("testing.test", listAll[0]);

    assertEquals(4, directory.fileLength("testing.test"));

    IndexInput input1 = directory.openInput("testing.test", IOContext.DEFAULT);

    IndexInput input2 = (IndexInput) input1.clone();
    assertEquals(12345, input2.readInt());
    input2.close();

    assertEquals(12345, input1.readInt());
    input1.close();

    assertFalse(directory.fileExists("testing.test.other"));
    assertTrue(directory.fileExists("testing.test"));
    directory.deleteFile("testing.test");
    assertFalse(directory.fileExists("testing.test"));
}

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From source file:com.bah.lucene.blockcache_v2.CacheIndexInputTest.java

License:Apache License

public static void readRandomDataInt(IndexInput baseInput, IndexInput testInput, Random random, int sampleSize)
        throws IOException {
    assertEquals(baseInput.length(), testInput.length());
    int fileLength = (int) baseInput.length();
    for (int i = 0; i < sampleSize; i++) {
        int position = random.nextInt(fileLength - 4);
        baseInput.seek(position);/*ww w . j a v  a2s . c o m*/
        int i1 = baseInput.readInt();
        testInput.seek(position);
        int i2 = testInput.readInt();
        assertEquals("Read [" + i + "] The position is [" + position + "]", i1, i2);
    }
}

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From source file:com.browseengine.bobo.geosearch.solo.impl.IDGeoRecordSerializer.java

License:Apache License

@Override
public IDGeoRecord readGeoRecord(IndexInput input, int recordByteCount) throws IOException {
    long highOrder = input.readLong();
    int lowOrder = input.readInt();
    int countIdBytes = recordByteCount - INTERLACE_BYTES;
    byte[] id = new byte[countIdBytes];
    input.readBytes(id, 0, countIdBytes, false);
    return new IDGeoRecord(highOrder, lowOrder, id);
}

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From source file:com.github.lucene.store.jdbc.index.AbstractIndexInputOutputITest.java

License:Apache License

private void verifyData() throws IOException {
    final byte[] test = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 };
    Assert.assertTrue(jdbcDirectory.fileExists("value1"));
    Assert.assertEquals(36, jdbcDirectory.fileLength("value1"));

    final IndexInput indexInput = jdbcDirectory.openInput("value1", new IOContext());
    Assert.assertEquals(-1, indexInput.readInt());
    Assert.assertEquals(10, indexInput.readLong());
    Assert.assertEquals(0, indexInput.readInt());
    Assert.assertEquals(0, indexInput.readInt());
    indexInput.readBytes(test, 0, 8);/*from  ww  w  .j av  a 2 s . c o  m*/
    Assert.assertEquals((byte) 1, test[0]);
    Assert.assertEquals((byte) 8, test[7]);
    indexInput.readBytes(test, 0, 5);
    Assert.assertEquals((byte) 1, test[0]);
    Assert.assertEquals((byte) 5, test[4]);

    indexInput.seek(28);
    Assert.assertEquals((byte) 1, indexInput.readByte());
    indexInput.seek(30);
    Assert.assertEquals((byte) 3, indexInput.readByte());

    indexInput.close();
}

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From source file:com.nearinfinity.bloomfilter.bitset.ThreadSafeBitSet.java

License:Apache License

@Override
public void read(IndexInput input) throws IOException {
    int length = input.readInt();
    bits = new AtomicLongArray(length);
    for (int i = 0; i < length; i++) {
        bits.set(i, input.readLong());/* w  w w. j a  v a2  s  . c o m*/
    }
}

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From source file:com.nearinfinity.bloomfilter.BloomFilter.java

License:Apache License

public void read(IndexInput input) throws IOException {
    numberOfBitsDivBy2 = input.readLong();
    elementSize = input.readLong();/*ww w . ja v  a2 s . c o  m*/
    probabilityOfFalsePositives = Double.longBitsToDouble(input.readLong());
    hashes = input.readInt();
    numberOfBits = input.readInt();
    bitSet = new ThreadSafeBitSet();
    bitSet.read(input);
}

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From source file:com.sindicetech.siren.index.codecs.siren10.Siren10PostingsReader.java

License:Open Source License

@Override
public void init(final IndexInput termsIn) throws IOException {
    // Make sure we are talking to the matching past writer
    CodecUtil.checkHeader(termsIn, Siren10PostingsWriter.CODEC, Siren10PostingsWriter.VERSION_START,
            Siren10PostingsWriter.VERSION_CURRENT);
    blockSkipInterval = termsIn.readInt();
    maxSkipLevels = termsIn.readInt();/*w w w.  j  a va  2 s  . c  o m*/
    blockSkipMinimum = termsIn.readInt();
    maxBlockSize = termsIn.readInt();
}

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From source file:org.apache.blur.lucene.codec.Blur022SegmentInfoReader.java

License:Apache License

@Override
public SegmentInfo read(Directory dir, String segment, IOContext context) throws IOException {
    final String fileName = IndexFileNames.segmentFileName(segment, "", Blur022SegmentInfoFormat.SI_EXTENSION);
    final IndexInput input = dir.openInput(fileName, context);
    boolean success = false;
    try {/*from  www.j  a v a 2 s . c  o m*/
        CodecUtil.checkHeader(input, Blur022SegmentInfoFormat.CODEC_NAME,
                Blur022SegmentInfoFormat.VERSION_START, Blur022SegmentInfoFormat.VERSION_CURRENT);
        final String version = input.readString();
        final int docCount = input.readInt();
        if (docCount < 0) {
            throw new CorruptIndexException("invalid docCount: " + docCount + " (resource=" + input + ")");
        }
        final boolean isCompoundFile = input.readByte() == SegmentInfo.YES;
        final Map<String, String> diagnostics = input.readStringStringMap();
        final Map<String, String> attributes = input.readStringStringMap();
        final Set<String> files = input.readStringSet();

        if (input.getFilePointer() != input.length()) {
            throw new CorruptIndexException("did not read all bytes from file \"" + fileName + "\": read "
                    + input.getFilePointer() + " vs size " + input.length() + " (resource: " + input + ")");
        }

        final SegmentInfo si = new SegmentInfo(dir, version, segment, docCount, isCompoundFile, null,
                diagnostics, Collections.unmodifiableMap(attributes));
        si.setFiles(files);

        success = true;

        return si;

    } finally {
        if (!success) {
            IOUtils.closeWhileHandlingException(input);
        } else {
            input.close();
        }
    }
}

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From source file:org.apache.blur.store.hdfs.MultiInstancesHdfsDirectoryTest.java

License:Apache License

@Test
public void testMultiInstancesHdfsDirectoryTest1() throws IOException, InterruptedException {
    HdfsDirectory dir1 = new HdfsDirectory(_configuration, new Path(_root, "dir"));

    IndexOutput output = dir1.createOutput("a", IOContext.DEFAULT);
    output.writeInt(1234);/* ww w .  j  a v  a  2s .c  om*/
    output.close();

    HdfsDirectory dir2 = new HdfsDirectory(_configuration, new Path(_root, "dir"));

    IndexInput input = dir2.openInput("a", IOContext.READ);
    assertEquals(4, input.length());
    assertEquals(1234, input.readInt());
    input.close();

    dir1.close();
    dir2.close();
}

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From source file:org.apache.jackrabbit.oak.plugins.index.lucene.OakDirectoryTest.java

License:Apache License

private void assertClosed(IndexInput input) throws IOException {
    try {/* ww w.  j av a  2  s .c o  m*/
        input.length();
        fail("cannot use IndexInput once closed");
    } catch (AlreadyClosedException e) {
        // expected exception
    }
    try {
        input.seek(0);
        fail("cannot use IndexInput once closed");
    } catch (AlreadyClosedException e) {
        // expected exception
    }
    try {
        input.getFilePointer();
        fail("cannot use IndexInput once closed");
    } catch (AlreadyClosedException e) {
        // expected exception
    }
    try {
        input.readInt();
        fail("cannot use IndexInput once closed");
    } catch (AlreadyClosedException e) {
        // expected exception
    }
    try {
        input.readShort();
        fail("cannot use IndexInput once closed");
    } catch (AlreadyClosedException e) {
        // expected exception
    }
    try {
        input.readLong();
        fail("cannot use IndexInput once closed");
    } catch (AlreadyClosedException e) {
        // expected exception
    }
    try {
        input.readByte();
        fail("cannot use IndexInput once closed");
    } catch (AlreadyClosedException e) {
        // expected exception
    }
    try {
        input.readString();
        fail("cannot use IndexInput once closed");
    } catch (AlreadyClosedException e) {
        // expected exception
    }
    try {
        input.readStringSet();
        fail("cannot use IndexInput once closed");
    } catch (AlreadyClosedException e) {
        // expected exception
    }
    try {
        input.readStringStringMap();
        fail("cannot use IndexInput once closed");
    } catch (AlreadyClosedException e) {
        // expected exception
    }
    try {
        input.readVInt();
        fail("cannot use IndexInput once closed");
    } catch (AlreadyClosedException e) {
        // expected exception
    }
    try {
        input.readVLong();
        fail("cannot use IndexInput once closed");
    } catch (AlreadyClosedException e) {
        // expected exception
    }
    try {
        input.readBytes(null, 0, 0);
        fail("cannot use IndexInput once closed");
    } catch (AlreadyClosedException e) {
        // expected exception
    }
    try {
        input.readBytes(null, 0, 0, false);
        fail("cannot use IndexInput once closed");
    } catch (AlreadyClosedException e) {
        // expected exception
    }
}

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