Java VersionedProtocol类代码示例

import org.apache.hadoop.hbase.ipc.VersionedProtocol; //导入依赖的package包/类
/** Construct a client-side proxy object that implements the named protocol,
 * talking to a server at the named address. */
public VersionedProtocol getProxy(
    Class<? extends VersionedProtocol> protocol, long clientVersion,
    InetSocketAddress addr, User ticket,
    Configuration conf, SocketFactory factory, int rpcTimeout)
  throws IOException {

    VersionedProtocol proxy =
        (VersionedProtocol) Proxy.newProxyInstance(
            protocol.getClassLoader(), new Class[] { protocol },
            new Invoker(protocol, addr, ticket, conf, factory, rpcTimeout));
  if (proxy instanceof VersionedProtocol) {
    long serverVersion = ((VersionedProtocol)proxy)
      .getProtocolVersion(protocol.getName(), clientVersion);
    if (serverVersion != clientVersion) {
      throw new HBaseRPC.VersionMismatch(protocol.getName(), clientVersion,
                                    serverVersion);
    }
  }
  return proxy;
}
 

import org.apache.hadoop.hbase.ipc.VersionedProtocol; //导入依赖的package包/类
public Invoker(HBaseClient client,
               Class<? extends VersionedProtocol> protocol,
               InetSocketAddress address, User ticket,
               Configuration conf, int rpcTimeout) {
  this.protocol = protocol;
  this.address = address;
  this.ticket = ticket;
  this.client = client;
  this.rpcTimeout = rpcTimeout;
}
 

import org.apache.hadoop.hbase.ipc.VersionedProtocol; //导入依赖的package包/类
/** Construct a client-side proxy object that implements the named protocol,
 * talking to a server at the named address. */
@Override
public <T extends VersionedProtocol> T getProxy(
    Class<T> protocol, long clientVersion,
    InetSocketAddress addr, Configuration conf, int rpcTimeout)
  throws IOException {
  if (this.client == null) {
    throw new IOException("Client must be initialized by calling setConf(Configuration)");
  }

  T proxy =
        (T) Proxy.newProxyInstance(
            protocol.getClassLoader(), new Class[] { protocol },
            new Invoker(client, protocol, addr, userProvider.getCurrent(), conf,
                HBaseRPC.getRpcTimeout(rpcTimeout)));

  /*
   * TODO: checking protocol version only needs to be done once when we setup a new
   * HBaseClient.Connection.  Doing it every time we retrieve a proxy instance is resulting
   * in unnecessary RPC traffic.
   */
  long serverVersion = ((VersionedProtocol)proxy)
    .getProtocolVersion(protocol.getName(), clientVersion);
  if (serverVersion != clientVersion) {
    throw new HBaseRPC.VersionMismatch(protocol.getName(), clientVersion,
                                  serverVersion);
  }

  return proxy;
}
 

import org.apache.hadoop.hbase.ipc.VersionedProtocol; //导入依赖的package包/类
/** Expert: Make multiple, parallel calls to a set of servers. */
@Override
public Object[] call(Method method, Object[][] params,
                     InetSocketAddress[] addrs,
                     Class<? extends VersionedProtocol> protocol,
                     User ticket, Configuration conf)
  throws IOException, InterruptedException {
  if (this.client == null) {
    throw new IOException("Client must be initialized by calling setConf(Configuration)");
  }

  Invocation[] invocations = new Invocation[params.length];
  for (int i = 0; i < params.length; i++) {
    invocations[i] = new Invocation(method, protocol, params[i]);
  }

  Writable[] wrappedValues =
      client.call(invocations, addrs, protocol, ticket);

  if (method.getReturnType() == Void.TYPE) {
    return null;
  }

  Object[] values =
      (Object[])Array.newInstance(method.getReturnType(), wrappedValues.length);
  for (int i = 0; i < values.length; i++) {
    if (wrappedValues[i] != null) {
      values[i] = ((HbaseObjectWritable)wrappedValues[i]).get();
    }
  }

  return values;
}
 

import org.apache.hadoop.hbase.ipc.VersionedProtocol; //导入依赖的package包/类
/** Construct a server for a protocol implementation instance listening on a
 * port and address. */
public Server getServer(Class<? extends VersionedProtocol> protocol,
                        Object instance,
                        Class<?>[] ifaces,
                        String bindAddress, int port,
                        int numHandlers,
                        int metaHandlerCount, boolean verbose,
                        Configuration conf, int highPriorityLevel)
  throws IOException {
  return new Server(instance, ifaces, conf, bindAddress, port, numHandlers,
      metaHandlerCount, verbose, highPriorityLevel);
}
 

import org.apache.hadoop.hbase.ipc.VersionedProtocol; //导入依赖的package包/类
public Invoker(Class<? extends VersionedProtocol> protocol,
               InetSocketAddress address, User ticket,
               Configuration conf, SocketFactory factory, int rpcTimeout) {
  this.protocol = protocol;
  this.address = address;
  this.ticket = ticket;
  this.client = CLIENTS.getClient(conf, factory);
  this.rpcTimeout = rpcTimeout;
}
 

import org.apache.hadoop.hbase.ipc.VersionedProtocol; //导入依赖的package包/类
/** Expert: Make multiple, parallel calls to a set of servers. */
public Object[] call(Method method, Object[][] params,
                     InetSocketAddress[] addrs,
                     Class<? extends VersionedProtocol> protocol,
                     User ticket, Configuration conf)
  throws IOException, InterruptedException {

  Invocation[] invocations = new Invocation[params.length];
  for (int i = 0; i < params.length; i++)
    invocations[i] = new Invocation(method, params[i]);
  HBaseClient client = CLIENTS.getClient(conf);
  try {
  Writable[] wrappedValues =
    client.call(invocations, addrs, protocol, ticket);

  if (method.getReturnType() == Void.TYPE) {
    return null;
  }

  Object[] values =
    (Object[])Array.newInstance(method.getReturnType(), wrappedValues.length);
  for (int i = 0; i < values.length; i++)
    if (wrappedValues[i] != null)
      values[i] = ((HbaseObjectWritable)wrappedValues[i]).get();

  return values;
  } finally {
    CLIENTS.stopClient(client);
  }
}
 

import org.apache.hadoop.hbase.ipc.VersionedProtocol; //导入依赖的package包/类
/** Construct a client-side proxy object that implements the named protocol,
 * talking to a server at the named address. */
@Override
public <T extends VersionedProtocol> T getProxy(
    Class<T> protocol, long clientVersion,
    InetSocketAddress addr, Configuration conf, int rpcTimeout)
  throws IOException {
  if (this.client == null) {
    throw new IOException("Client must be initialized by calling setConf(Configuration)");
  }

  T proxy =
        (T) Proxy.newProxyInstance(
            protocol.getClassLoader(), new Class[] { protocol },
            new Invoker(client, protocol, addr, User.getCurrent(), conf,
                HBaseRPC.getRpcTimeout(rpcTimeout)));

  /*
   * TODO: checking protocol version only needs to be done once when we setup a new
   * HBaseClient.Connection.  Doing it every time we retrieve a proxy instance is resulting
   * in unnecessary RPC traffic.
   */
  long serverVersion = ((VersionedProtocol)proxy)
    .getProtocolVersion(protocol.getName(), clientVersion);
  if (serverVersion != clientVersion) {
    throw new HBaseRPC.VersionMismatch(protocol.getName(), clientVersion,
                                  serverVersion);
  }

  return proxy;
}
 

import org.apache.hadoop.hbase.ipc.VersionedProtocol; //导入依赖的package包/类
private void initMethods(Class<? extends VersionedProtocol> protocol) {
  for (Method m : protocol.getDeclaredMethods()) {
    if (get(m.getName()) == null)
      create(m.getName());
  }
}
 

import org.apache.hadoop.hbase.ipc.VersionedProtocol; //导入依赖的package包/类
/**
 * Stop this proxy and release its invoker's resource
 * @param proxy the proxy to be stopped
 */
public void stopProxy(VersionedProtocol proxy) {
  if (proxy!=null) {
    ((Invoker)Proxy.getInvocationHandler(proxy)).close();
  }
}
 

import org.apache.hadoop.hbase.ipc.VersionedProtocol; //导入依赖的package包/类
/** Construct a client-side proxy object. */
VersionedProtocol getProxy(Class<? extends VersionedProtocol> protocol,
                long clientVersion, InetSocketAddress addr,
                User ticket, Configuration conf,
                SocketFactory factory, int rpcTimeout) throws IOException;
 

import org.apache.hadoop.hbase.ipc.VersionedProtocol; //导入依赖的package包/类
/** Stop this proxy. */
void stopProxy(VersionedProtocol proxy);
 

import org.apache.hadoop.hbase.ipc.VersionedProtocol; //导入依赖的package包/类
/** Expert: Make multiple, parallel calls to a set of servers. */
Object[] call(Method method, Object[][] params, InetSocketAddress[] addrs,
              Class<? extends VersionedProtocol> protocol,
              User ticket, Configuration conf)
  throws IOException, InterruptedException;
 

import org.apache.hadoop.hbase.ipc.VersionedProtocol; //导入依赖的package包/类
/** Construct a server for a protocol implementation instance. */
RpcServer getServer(Class<? extends VersionedProtocol> protocol, Object instance,
                     Class<?>[] ifaces, String bindAddress,
                     int port, int numHandlers, int metaHandlerCount,
                     boolean verbose, Configuration conf, int highPriorityLevel)
    throws IOException;