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package com.salesforce.hbase.index.covered.data;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.KeyValue.Type;
import org.apache.hadoop.hbase.regionserver.KeyValueScanner;
import org.apache.hadoop.hbase.util.Bytes;
import org.junit.Test;
public class TestIndexMemStore {
private static final byte[] row = Bytes.toBytes("row");
private static final byte[] family = Bytes.toBytes("family");
private static final byte[] qual = Bytes.toBytes("qual");
private static final byte[] val = Bytes.toBytes("val");
private static final byte[] val2 = Bytes.toBytes("val2");
@Test
public void testCorrectOverwritting() throws Exception {
IndexMemStore store = new IndexMemStore(IndexMemStore.COMPARATOR);
long ts = 10;
KeyValue kv = new KeyValue(row, family, qual, ts, Type.Put, val);
kv.setMemstoreTS(2);
KeyValue kv2 = new KeyValue(row, family, qual, ts, Type.Put, val2);
kv2.setMemstoreTS(0);
store.add(kv, true);
// adding the exact same kv shouldn't change anything stored if not overwritting
store.add(kv2, false);
KeyValueScanner scanner = store.getScanner();
KeyValue first = KeyValue.createFirstOnRow(row);
scanner.seek(first);
assertTrue("Overwrote kv when specifically not!", kv == scanner.next());
scanner.close();
// now when we overwrite, we should get the newer one
store.add(kv2, true);
scanner = store.getScanner();
scanner.seek(first);
assertTrue("Didn't overwrite kv when specifically requested!", kv2 == scanner.next());
scanner.close();
}
/**
* We don't expect custom KeyValue creation, so we can't get into weird situations, where a
* {@link Type#DeleteFamily} has a column qualifier specified.
* @throws Exception
*/
@Test
public void testExpectedOrdering() throws Exception {
IndexMemStore store = new IndexMemStore();
KeyValue kv = new KeyValue(row, family, qual, 12, Type.Put, val);
store.add(kv, true);
KeyValue kv2 = new KeyValue(row, family, qual, 10, Type.Put, val2);
store.add(kv2, true);
KeyValue df = new KeyValue(row, family, null, 11, Type.DeleteFamily, null);
store.add(df, true);
KeyValue dc = new KeyValue(row, family, qual, 11, Type.DeleteColumn, null);
store.add(dc, true);
KeyValue d = new KeyValue(row, family, qual, 12, Type.Delete, null);
store.add(d, true);
// null qualifiers should always sort before the non-null cases
KeyValueScanner scanner = store.getScanner();
KeyValue first = KeyValue.createFirstOnRow(row);
assertTrue("Didn't have any data in the scanner", scanner.seek(first));
assertTrue("Didn't get delete family first (no qualifier == sort first)", df == scanner.next());
assertTrue("Didn't get point delete before corresponding put", d == scanner.next());
assertTrue("Didn't get larger ts Put", kv == scanner.next());
assertTrue("Didn't get delete column before corresponding put(delete sorts first)",
dc == scanner.next());
assertTrue("Didn't get smaller ts Put", kv2 == scanner.next());
assertNull("Have more data in the scanner", scanner.next());
}
}