public ClientConfiguration() {
		this.userAgent = "baidu-bcs-java-sdk/1";

		this.maxErrorRetry = 3;

		this.protocol = Protocol.HTTP;

		this.proxyHost = null;

		this.proxyPort = -1;

		this.proxyUsername = null;

		this.proxyPassword = null;

		this.proxyDomain = null;

		this.proxyWorkstation = null;

		this.maxConnections = 200;

		this.maxConnectionsPerRoute = 100;

		this.socketTimeout = 50000;

		this.connectionTimeout = 50000;

		this.socketSendBufferSizeHint = 0;

		this.socketReceiveBufferSizeHint = 0;
	}