if (existingChildLbState != null) {

childLbMap.put(endpoint, existingChildLbState);

} else {

childLbMap.put(endpoint,

createChildLbState(endpoint, null, getInitialPicker(), resolvedAddresses));

childLbMap.put(endpoint, createChildLbState(endpoint, null, resolvedAddresses));

}

}

return childLbMap;

* Override to create an instance of a subclass.

*/

protected ChildLbState createChildLbState(Object key, Object policyConfig,

SubchannelPicker initialPicker, ResolvedAddresses resolvedAddresses) {

return new ChildLbState(key, pickFirstLbProvider, policyConfig, initialPicker);

ResolvedAddresses resolvedAddresses) {

return new ChildLbState(key, pickFirstLbProvider, policyConfig);

}

/**

child.lb.handleNameResolutionError(error);

}

/**

* Creates a picker representing the state before any connections have been established.

*

* <p/>Override to produce a custom picker.

*/

protected SubchannelPicker getInitialPicker() {

return new FixedResultPicker(PickResult.withNoResult());

}

/**

* Creates a new picker representing an error status.

*

private final LoadBalancer lb;

private ConnectivityState currentState;

private SubchannelPicker currentPicker;

private SubchannelPicker currentPicker = new FixedResultPicker(PickResult.withNoResult());

public ChildLbState(Object key, LoadBalancer.Factory policyFactory, Object childConfig,

SubchannelPicker initialPicker) {

public ChildLbState(Object key, LoadBalancer.Factory policyFactory, Object childConfig) {

this.key = key;

this.currentPicker = initialPicker;

this.config = childConfig;

this.lb = policyFactory.newLoadBalancer(createChildHelper());

this.currentState = CONNECTING;