Java ProtobufUtil.lengthOfPBMagic方法代码示例

import org.apache.hadoop.hbase.protobuf.ProtobufUtil; //导入方法依赖的package包/类
/**
 * @param bytes Content of a state znode.
 * @return State parsed from the passed bytes.
 * @throws DeserializationException
 */
private static ZooKeeperProtos.ReplicationState.State parseStateFrom(final byte[] bytes)
    throws DeserializationException {
  ProtobufUtil.expectPBMagicPrefix(bytes);
  int pblen = ProtobufUtil.lengthOfPBMagic();
  ZooKeeperProtos.ReplicationState.Builder builder =
      ZooKeeperProtos.ReplicationState.newBuilder();
  ZooKeeperProtos.ReplicationState state;
  try {
    ProtobufUtil.mergeFrom(builder, bytes, pblen, bytes.length - pblen);
    state = builder.build();
    return state.getState();
  } catch (IOException e) {
    throw new DeserializationException(e);
  }
}
 

import org.apache.hadoop.hbase.protobuf.ProtobufUtil; //导入方法依赖的package包/类
/**
 * @param bytes Content of a peer znode.
 * @return ClusterKey parsed from the passed bytes.
 * @throws DeserializationException
 */
private static ReplicationPeerConfig parsePeerFrom(final byte[] bytes)
    throws DeserializationException {
  if (ProtobufUtil.isPBMagicPrefix(bytes)) {
    int pblen = ProtobufUtil.lengthOfPBMagic();
    ZooKeeperProtos.ReplicationPeer.Builder builder =
        ZooKeeperProtos.ReplicationPeer.newBuilder();
    ZooKeeperProtos.ReplicationPeer peer;
    try {
      ProtobufUtil.mergeFrom(builder, bytes, pblen, bytes.length - pblen);
      peer = builder.build();
    } catch (IOException e) {
      throw new DeserializationException(e);
    }
    return convert(peer);
  } else {
    if (bytes.length > 0) {
      return new ReplicationPeerConfig().setClusterKey(Bytes.toString(bytes));
    }
    return new ReplicationPeerConfig().setClusterKey("");
  }
}
 

import org.apache.hadoop.hbase.protobuf.ProtobufUtil; //导入方法依赖的package包/类
/**
 * @param bytes A pb serialized {@link HTableDescriptor} instance with pb magic prefix
 * @return An instance of {@link HTableDescriptor} made from <code>bytes</code>
 * @throws DeserializationException
 * @throws IOException
 * @see #toByteArray()
 */
public static HTableDescriptor parseFrom(final byte [] bytes)
throws DeserializationException, IOException {
  if (!ProtobufUtil.isPBMagicPrefix(bytes)) {
    return (HTableDescriptor)Writables.getWritable(bytes, new HTableDescriptor());
  }
  int pblen = ProtobufUtil.lengthOfPBMagic();
  TableSchema.Builder builder = TableSchema.newBuilder();
  TableSchema ts;
  try {
    ProtobufUtil.mergeFrom(builder, bytes, pblen, bytes.length - pblen);
    ts = builder.build();
  } catch (IOException e) {
    throw new DeserializationException(e);
  }
  return convert(ts);
}
 

import org.apache.hadoop.hbase.protobuf.ProtobufUtil; //导入方法依赖的package包/类
private static void appendPeerState(ZooKeeperWatcher zkw, String znodeToProcess,
    StringBuilder sb) throws KeeperException, InvalidProtocolBufferException {
  String peerState = zkw.getConfiguration().get("zookeeper.znode.replication.peers.state",
    "peer-state");
  int pblen = ProtobufUtil.lengthOfPBMagic();
  for (String child : ZKUtil.listChildrenNoWatch(zkw, znodeToProcess)) {
    if (!child.equals(peerState)) continue;
    String peerStateZnode = ZKUtil.joinZNode(znodeToProcess, child);
    sb.append("\n").append(peerStateZnode).append(": ");
    byte[] peerStateData;
    try {
      peerStateData = ZKUtil.getData(zkw, peerStateZnode);
      ZooKeeperProtos.ReplicationState.Builder builder =
          ZooKeeperProtos.ReplicationState.newBuilder();
      ProtobufUtil.mergeFrom(builder, peerStateData, pblen, peerStateData.length - pblen);
      sb.append(builder.getState().name());
    } catch (IOException ipbe) {
      LOG.warn("Got Exception while parsing peer: " + znodeToProcess, ipbe);
    } catch (InterruptedException e) {
      zkw.interruptedException(e);
      return;
    }
  }
}
 

import org.apache.hadoop.hbase.protobuf.ProtobufUtil; //导入方法依赖的package包/类
/**
 * @param bytes - Content of a WAL position znode.
 * @return long - The current WAL position.
 * @throws DeserializationException
 */
public static long parseWALPositionFrom(final byte[] bytes) throws DeserializationException {
  if (bytes == null) {
    throw new DeserializationException("Unable to parse null WAL position.");
  }
  if (ProtobufUtil.isPBMagicPrefix(bytes)) {
    int pblen = ProtobufUtil.lengthOfPBMagic();
    ZooKeeperProtos.ReplicationHLogPosition.Builder builder =
        ZooKeeperProtos.ReplicationHLogPosition.newBuilder();
    ZooKeeperProtos.ReplicationHLogPosition position;
    try {
      ProtobufUtil.mergeFrom(builder, bytes, pblen, bytes.length - pblen);
      position = builder.build();
    } catch (IOException e) {
      throw new DeserializationException(e);
    }
    return position.getPosition();
  } else {
    if (bytes.length > 0) {
      return Bytes.toLong(bytes);
    }
    return 0;
  }
}
 

import org.apache.hadoop.hbase.protobuf.ProtobufUtil; //导入方法依赖的package包/类
/**
 * @param bytes Content of serialized data of RegionStoreSequenceIds
 * @return a RegionStoreSequenceIds object
 * @throws DeserializationException
 */
public static RegionStoreSequenceIds parseRegionStoreSequenceIds(final byte[] bytes)
    throws DeserializationException {
  if (bytes == null || !ProtobufUtil.isPBMagicPrefix(bytes)) {
    throw new DeserializationException("Unable to parse RegionStoreSequenceIds.");
  }
  RegionStoreSequenceIds.Builder regionSequenceIdsBuilder =
      ClusterStatusProtos.RegionStoreSequenceIds.newBuilder();
  int pblen = ProtobufUtil.lengthOfPBMagic();
  RegionStoreSequenceIds storeIds = null;
  try {
    ProtobufUtil.mergeFrom(regionSequenceIdsBuilder, bytes, pblen, bytes.length - pblen);
    storeIds = regionSequenceIdsBuilder.build();
  } catch (IOException e) {
    throw new DeserializationException(e);
  }
  return storeIds;
}
 

import org.apache.hadoop.hbase.protobuf.ProtobufUtil; //导入方法依赖的package包/类
/**
 * @param bytes A pb serialized {@link ClusterId} instance with pb magic prefix
 * @return An instance of {@link ClusterId} made from <code>bytes</code>
 * @throws DeserializationException
 * @see #toByteArray()
 */
public static ClusterId parseFrom(final byte [] bytes) throws DeserializationException {
  if (ProtobufUtil.isPBMagicPrefix(bytes)) {
    int pblen = ProtobufUtil.lengthOfPBMagic();
    ClusterIdProtos.ClusterId.Builder builder = ClusterIdProtos.ClusterId.newBuilder();
    ClusterIdProtos.ClusterId cid = null;
    try {
      ProtobufUtil.mergeFrom(builder, bytes, pblen, bytes.length - pblen);
      cid = builder.build();
    } catch (IOException e) {
      throw new DeserializationException(e);
    }
    return convert(cid);
  } else {
    // Presume it was written out this way, the old way.
    return new ClusterId(Bytes.toString(bytes));
  }
}
 

import org.apache.hadoop.hbase.protobuf.ProtobufUtil; //导入方法依赖的package包/类
/**
 * Reads back from the zookeeper. The data read here is of the form written by
 * writeToZooKeeper(Map<byte[], Integer> entries).
 * 
 * @param data
 * @return Labels and their ordinal details
 * @throws DeserializationException
 */
public static List<VisibilityLabel> readLabelsFromZKData(byte[] data)
    throws DeserializationException {
  if (ProtobufUtil.isPBMagicPrefix(data)) {
    int pblen = ProtobufUtil.lengthOfPBMagic();
    try {
      VisibilityLabelsRequest.Builder builder = VisibilityLabelsRequest.newBuilder();
      ProtobufUtil.mergeFrom(builder, data, pblen, data.length - pblen);
      return builder.getVisLabelList();
    } catch (IOException e) {
      throw new DeserializationException(e);
    }
  }
  return null;
}
 

import org.apache.hadoop.hbase.protobuf.ProtobufUtil; //导入方法依赖的package包/类
/**
 * Reads back User auth data written to zookeeper.
 * @param data
 * @return User auth details
 * @throws DeserializationException
 */
public static MultiUserAuthorizations readUserAuthsFromZKData(byte[] data) 
    throws DeserializationException {
  if (ProtobufUtil.isPBMagicPrefix(data)) {
    int pblen = ProtobufUtil.lengthOfPBMagic();
    try {
      MultiUserAuthorizations.Builder builder = MultiUserAuthorizations.newBuilder();
      ProtobufUtil.mergeFrom(builder, data, pblen, data.length - pblen);
      return builder.build();
    } catch (IOException e) {
      throw new DeserializationException(e);
    }
  }
  return null;
}
 

import org.apache.hadoop.hbase.protobuf.ProtobufUtil; //导入方法依赖的package包/类
private LoadBalancerProtos.LoadBalancerState parseFrom(byte [] pbBytes)
throws DeserializationException {
  ProtobufUtil.expectPBMagicPrefix(pbBytes);
  LoadBalancerProtos.LoadBalancerState.Builder builder =
    LoadBalancerProtos.LoadBalancerState.newBuilder();
  try {
    int magicLen = ProtobufUtil.lengthOfPBMagic();
    ProtobufUtil.mergeFrom(builder, pbBytes, magicLen, pbBytes.length - magicLen);
  } catch (IOException e) {
    throw new DeserializationException(e);
  }
  return builder.build();
}
 

import org.apache.hadoop.hbase.protobuf.ProtobufUtil; //导入方法依赖的package包/类
private RegionNormalizerProtos.RegionNormalizerState parseFrom(byte [] pbBytes)
  throws DeserializationException {
  ProtobufUtil.expectPBMagicPrefix(pbBytes);
  RegionNormalizerProtos.RegionNormalizerState.Builder builder =
    RegionNormalizerProtos.RegionNormalizerState.newBuilder();
  try {
    int magicLen = ProtobufUtil.lengthOfPBMagic();
    ProtobufUtil.mergeFrom(builder, pbBytes, magicLen, pbBytes.length - magicLen);
  } catch (IOException e) {
    throw new DeserializationException(e);
  }
  return builder.build();
}
 

import org.apache.hadoop.hbase.protobuf.ProtobufUtil; //导入方法依赖的package包/类
/**
 * @param data Serialized date to parse.
 * @return An SplitLogTaskState instance made of the passed <code>data</code>
 * @throws DeserializationException 
 * @see #toByteArray()
 */
public static SplitLogTask parseFrom(final byte [] data) throws DeserializationException {
  ProtobufUtil.expectPBMagicPrefix(data);
  try {
    int prefixLen = ProtobufUtil.lengthOfPBMagic();
    ZooKeeperProtos.SplitLogTask.Builder builder = ZooKeeperProtos.SplitLogTask.newBuilder();
    ProtobufUtil.mergeFrom(builder, data, prefixLen, data.length - prefixLen);
    return new SplitLogTask(builder.build());
  } catch (IOException e) {
    throw new DeserializationException(Bytes.toStringBinary(data, 0, 64), e);
  }
}
 

import org.apache.hadoop.hbase.protobuf.ProtobufUtil; //导入方法依赖的package包/类
/** Public for hbck */
public static ZooKeeperProtos.TableLock fromBytes(byte[] bytes) {
  int pblen = ProtobufUtil.lengthOfPBMagic();
  if (bytes == null || bytes.length < pblen) {
    return null;
  }
  try {
    ZooKeeperProtos.TableLock.Builder builder = ZooKeeperProtos.TableLock.newBuilder();
    ProtobufUtil.mergeFrom(builder, bytes, pblen, bytes.length - pblen);
    return builder.build();
  } catch (IOException ex) {
    LOG.warn("Exception in deserialization", ex);
  }
  return null;
}
 

import org.apache.hadoop.hbase.protobuf.ProtobufUtil; //导入方法依赖的package包/类
/**
 * Parse the content of the ${HBASE_ROOTDIR}/hbase.version file.
 * @param bytes The byte content of the hbase.version file.
 * @return The version found in the file as a String.
 * @throws DeserializationException
 */
static String parseVersionFrom(final byte [] bytes)
throws DeserializationException {
  ProtobufUtil.expectPBMagicPrefix(bytes);
  int pblen = ProtobufUtil.lengthOfPBMagic();
  FSProtos.HBaseVersionFileContent.Builder builder =
    FSProtos.HBaseVersionFileContent.newBuilder();
  try {
    ProtobufUtil.mergeFrom(builder, bytes, pblen, bytes.length - pblen);
    return builder.getVersion();
  } catch (IOException e) {
    // Convert
    throw new DeserializationException(e);
  }
}
 

import org.apache.hadoop.hbase.protobuf.ProtobufUtil; //导入方法依赖的package包/类
private void checkTableState(byte[] data, State expectedState)
    throws InvalidProtocolBufferException {
  ZooKeeperProtos.Table.Builder builder = ZooKeeperProtos.Table.newBuilder();
  int magicLen = ProtobufUtil.lengthOfPBMagic();
  ZooKeeperProtos.Table t = builder.mergeFrom(data, magicLen, data.length - magicLen).build();
  assertTrue(t.getState() == expectedState);
}