Examples with KVOperation com.alipay.sofa.jraft.rhea.storage.KVOperation used on opensource projects

Example 1 with KVOperation

use of com.alipay.sofa.jraft.rhea.storage.KVOperation in project sofa-jraft by sofastack.

the class SerializerTest method readObjectTest.

@Test
public void readObjectTest() {
    final Serializer serializer = Serializers.getDefault();
    final KVOperation op = KVOperation.createPut(BytesUtil.writeUtf8("key"), BytesUtil.writeUtf8("value"));
    final byte[] bytes = serializer.writeObject(op);
    final ByteBuffer buffer = ByteBuffer.allocateDirect(bytes.length);
    buffer.put(bytes);
    buffer.flip();
    final KVOperation op1 = serializer.readObject(bytes, KVOperation.class);
    final KVOperation op2 = serializer.readObject(buffer, KVOperation.class);
    assertArrayEquals(op1.getKey(), op.getKey());
    assertArrayEquals(op1.getValue(), op.getValue());
    assertEquals(op.getOp(), op.getOp());
    assertArrayEquals(op1.getKey(), op2.getKey());
    assertArrayEquals(op1.getValue(), op2.getValue());
    assertEquals(op.getOp(), op2.getOp());
}

Example 2 with KVOperation

use of com.alipay.sofa.jraft.rhea.storage.KVOperation in project sofa-jraft by sofastack.

the class StoreEngine method applySplit.

public void applySplit(final Long regionId, final Long newRegionId, final KVStoreClosure closure) {
    Requires.requireNonNull(regionId, "regionId");
    Requires.requireNonNull(newRegionId, "newRegionId");
    if (this.regionEngineTable.containsKey(newRegionId)) {
        closure.setError(Errors.CONFLICT_REGION_ID);
        closure.run(new Status(-1, "Conflict region id %d", newRegionId));
        return;
    }
    if (!this.splitting.compareAndSet(false, true)) {
        closure.setError(Errors.SERVER_BUSY);
        closure.run(new Status(-1, "Server is busy now"));
        return;
    }
    final RegionEngine parentEngine = getRegionEngine(regionId);
    if (parentEngine == null) {
        closure.setError(Errors.NO_REGION_FOUND);
        closure.run(new Status(-1, "RegionEngine[%s] not found", regionId));
        this.splitting.set(false);
        return;
    }
    if (!parentEngine.isLeader()) {
        closure.setError(Errors.NOT_LEADER);
        closure.run(new Status(-1, "RegionEngine[%s] not leader", regionId));
        this.splitting.set(false);
        return;
    }
    final Region parentRegion = parentEngine.getRegion();
    final byte[] startKey = BytesUtil.nullToEmpty(parentRegion.getStartKey());
    final byte[] endKey = parentRegion.getEndKey();
    final long approximateKeys = this.rawKVStore.getApproximateKeysInRange(startKey, endKey);
    final long leastKeysOnSplit = this.storeOpts.getLeastKeysOnSplit();
    if (approximateKeys < leastKeysOnSplit) {
        closure.setError(Errors.TOO_SMALL_TO_SPLIT);
        closure.run(new Status(-1, "RegionEngine[%s]'s keys less than %d", regionId, leastKeysOnSplit));
        this.splitting.set(false);
        return;
    }
    final byte[] splitKey = this.rawKVStore.jumpOver(startKey, approximateKeys >> 1);
    if (splitKey == null) {
        closure.setError(Errors.STORAGE_ERROR);
        closure.run(new Status(-1, "Fail to scan split key"));
        this.splitting.set(false);
        return;
    }
    final KVOperation op = KVOperation.createRangeSplit(splitKey, regionId, newRegionId);
    final Task task = new Task();
    task.setData(ByteBuffer.wrap(Serializers.getDefault().writeObject(op)));
    task.setDone(new KVClosureAdapter(closure, op));
    parentEngine.getNode().apply(task);
}