Examples with CacheEntry org.apache.accumulo.core.spi.cache.CacheEntry used on opensource projects

Example 6 with CacheEntry

use of org.apache.accumulo.core.spi.cache.CacheEntry in project accumulo by apache.

the class BlockIndexTest method testSame.

@Test
public void testSame() throws IOException {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    DataOutputStream out = new DataOutputStream(baos);
    Key prevKey = null;
    int num = 1000;
    for (int i = 0; i < num; i++) {
        Key key = new Key(RFileTest.formatString("", 1), "cf1", "cq1");
        new RelativeKey(prevKey, key).write(out);
        new Value().write(out);
        prevKey = key;
    }
    for (int i = 0; i < num; i++) {
        Key key = new Key(RFileTest.formatString("", 3), "cf1", "cq1");
        new RelativeKey(prevKey, key).write(out);
        new Value().write(out);
        prevKey = key;
    }
    for (int i = 0; i < num; i++) {
        Key key = new Key(RFileTest.formatString("", 5), "cf1", "cq1");
        new RelativeKey(prevKey, key).write(out);
        new Value().write(out);
        prevKey = key;
    }
    out.close();
    final byte[] data = baos.toByteArray();
    CacheEntry ce = new MyCacheEntry(data);
    CachableBlockFile.CachedBlockRead cacheBlock = new CachableBlockFile.CachedBlockRead(ce, data);
    BlockIndex blockIndex = null;
    for (int i = 0; i < 257; i++) blockIndex = BlockIndex.getIndex(cacheBlock, new IndexEntry(prevKey, num, 0, 0, 0));
    assertSame(null, blockIndex.seekBlock(new Key(RFileTest.formatString("", 0), "cf1", "cq1"), cacheBlock));
    assertSame(null, blockIndex.seekBlock(new Key(RFileTest.formatString("", 1), "cf1", "cq1"), cacheBlock));
    for (int i = 2; i < 6; i++) {
        Key seekKey = new Key(RFileTest.formatString("", i), "cf1", "cq1");
        BlockIndexEntry bie = blockIndex.seekBlock(seekKey, cacheBlock);
        assertTrue(bie.getPrevKey().compareTo(seekKey) < 0);
        RelativeKey rk = new RelativeKey();
        rk.setPrevKey(bie.getPrevKey());
        rk.readFields(cacheBlock);
        assertTrue(rk.getKey().compareTo(seekKey) <= 0);
    }
    cacheBlock.close();
}