import com.google.ipc.invalidation.ticl.InvalidationClientImpl; //导入依赖的package包/类
/**
 * Creates a new InvalidationClient instance that the proxy will delegate requests to and listen
 * for events from.
 */
// Overridden by tests to inject mock clients or for listener interception

InvalidationClient createClient(SystemResources resources, int clientType, byte[] clientName,
    String applicationName, InvalidationListener listener, ClientConfigP config) {
  // We always use C2DM, so set the channel-supports-offline-delivery bit on our config.
  final ClientConfigP.Builder configBuilder;
  if (config == null) {
    configBuilder = InvalidationClientCore.createConfig();
  } else {
    configBuilder = ClientConfigP.newBuilder(config);
  }
  configBuilder.setChannelSupportsOfflineDelivery(true);
  config = configBuilder.build();
  Random random = new Random(resources.getInternalScheduler().getCurrentTimeMs());
  return new InvalidationClientImpl(resources, random, clientType, clientName, config,
      applicationName, listener);
}
 

import com.google.ipc.invalidation.ticl.InvalidationClientImpl; //导入依赖的package包/类
/**
 * Constructs an invalidation client library instance.
 *
 * @param resources {@link SystemResources} to use for logging, scheduling, persistence, and
 *     network connectivity
 * @param clientConfig application provided configuration for the client.
 * @param listener callback object for invalidation events
 */
public static InvalidationClient createClient(SystemResources resources,
    InvalidationClientConfig clientConfig, InvalidationListener listener) {
  ClientConfigP.Builder internalConfigBuilder = InvalidationClientCore.createConfig().toBuilder();
  internalConfigBuilder.allowSuppression = clientConfig.allowSuppression;
  ClientConfigP internalConfig = internalConfigBuilder.build();
  Random random = new Random(resources.getInternalScheduler().getCurrentTimeMs());
  return new InvalidationClientImpl(resources, random, clientConfig.clientType,
      clientConfig.clientName, internalConfig, clientConfig.applicationName, listener);
}
 

import com.google.ipc.invalidation.ticl.InvalidationClientImpl; //导入依赖的package包/类
/**
 * Constructs an invalidation client library instance.
 *
 * @param resources {@link SystemResources} to use for logging, scheduling, persistence, and
 *     network connectivity
 * @param clientConfig application provided configuration for the client.
 * @param listener callback object for invalidation events
 */
public static InvalidationClient createClient(SystemResources resources,
    InvalidationClientConfig clientConfig, InvalidationListener listener) {
  ClientConfigP internalConfig = InvalidationClientCore.createConfig()
      .setAllowSuppression(clientConfig.allowSuppression)
      .build();
  Random random = new Random(resources.getInternalScheduler().getCurrentTimeMs());
  return new InvalidationClientImpl(resources, random, clientConfig.clientType,
      clientConfig.clientName, internalConfig, clientConfig.applicationName, listener);
}