本文分析一下ConnectorInterfaces类的代码，该类主要提供了访问连接器的相关依赖类的一下方法，供ConnectorCoordinatorImpl类调用，其源码如下：

/** * Access to the AuthenticationManager, AuthorizationManager, and * TraversalManagager for a Connector instance. */public class ConnectorInterfaces {  private final String connectorName;  private final Connector connector;  // these are lazily constructed  private TraversalManager traversalManager;  private AuthenticationManager authenticationManager;  private AuthorizationManager authorizationManager;  ConnectorInterfaces(String connectorName, Connector connector) {    this.connectorName = connectorName;    this.connector = connector;  }  /**   * Constructs a ConnectorIntefaces with Managers supplied by the caller   * rather than the connector. This is for testing only.   */  ConnectorInterfaces(String connectorName, TraversalManager traversalManager,                      AuthenticationManager authenticationManager,                      AuthorizationManager authorizationManager) {    this.connectorName = connectorName;    this.connector = null;    this.traversalManager = traversalManager;    this.authenticationManager = authenticationManager;    this.authorizationManager = authorizationManager;  }  /**   * @return the authenticationManager   * @throws InstantiatorException   */  AuthenticationManager getAuthenticationManager() throws InstantiatorException {    if (authenticationManager == null) {      Session s = getSession();      try {        authenticationManager = s.getAuthenticationManager();      } catch (RepositoryException e) {        // TODO(ziff): think about how this could be re-tried        throw new InstantiatorException(e);      } catch (Exception e) {        throw new InstantiatorException(e);      }    }    return authenticationManager;  }  /**   * @return the authorizationManager   * @throws InstantiatorException   */  AuthorizationManager getAuthorizationManager() throws InstantiatorException {    if (authorizationManager == null) {      Session s = getSession();      try {        authorizationManager = s.getAuthorizationManager();      } catch (RepositoryException e) {        // TODO(ziff): think about how this could be re-tried        throw new InstantiatorException(e);      } catch (Exception e) {        throw new InstantiatorException(e);      }    }    return authorizationManager;  }  /**   * @return the connector   */  // TODO(strellis) Remove this method or make it private so all connector  // access is through InstanceInfo.  Connector getConnector() {    return connector;  }  /**   * @return the connectorName   */  String getConnectorName() {    return connectorName;  }  /**   * @return the traverser   * @throws InstantiatorException   */  TraversalManager getTraversalManager() throws InstantiatorException {    if (traversalManager == null) {      Session s = getSession();      try {        traversalManager = s.getTraversalManager();      } catch (RepositoryException ie) {        throw new InstantiatorException(ie);      } catch (Exception e) {        throw new InstantiatorException(e);      }    }    return traversalManager;  }  private Session getSession() throws InstantiatorException {    Session s = null;    try {      s = connector.login();    } catch (RepositoryLoginException e) {      // this is un-recoverable      throw new InstantiatorException(e);    } catch (RepositoryException e) {      // for this one, we could try again later      // TODO(ziff): think about how this could be re-tried      throw new InstantiatorException(e);    } catch (Exception e) {      throw new InstantiatorException(e);    }    return s;  }}

 可以看到，连接器的相关TraversalManager对象是通过这里获取的，该类源码容易读懂，我不解释了

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本文链接http://www.cnblogs.com/chenying99/archive/2013/03/20/2970354.html