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/*
* Copyright 2010-2015 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file is distributed
* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
package com.amazonaws;
import java.net.InetAddress;
import com.amazonaws.retry.PredefinedRetryPolicies;
import com.amazonaws.retry.RetryPolicy;
import com.amazonaws.http.IdleConnectionReaper;
import com.amazonaws.util.VersionInfoUtils;
/**
* Client configuration options such as proxy settings, user agent string, max
* retry attempts, etc.
*/
public class ClientConfiguration {
/** The default timeout for creating new connections. */
public static final int DEFAULT_CONNECTION_TIMEOUT = 50 * 1000;
/** The default timeout for reading from a connected socket. */
public static final int DEFAULT_SOCKET_TIMEOUT = 50 * 1000;
/** The default max connection pool size. */
public static final int DEFAULT_MAX_CONNECTIONS = 50;
/** The default HTTP user agent header for AWS Java SDK clients. */
public static final String DEFAULT_USER_AGENT = VersionInfoUtils.getUserAgent();
/**
* Default request retry policy, including the maximum retry count of 3, the
* default retry condition and the default back-off strategy.
*
* Note this default policy might be overridden by a service-specific
* default policy, if the user doesn't provide a custom RetryPolicy
* implementation by {@link #setRetryPolicy(RetryPolicy)}. For example,
* AmazonDynamoDBClient by default uses a different retry policy
* {@link PredefinedRetryPolicies#DYNAMODB_DEFAULT}.
*
* @see PredefinedRetryPolicies#DEFAULT
* @see PredefinedRetryPolicies#DYNAMODB_DEFAULT
*/
public static final RetryPolicy DEFAULT_RETRY_POLICY = PredefinedRetryPolicies.DEFAULT;
/**
* The default on whether to use the {@link IdleConnectionReaper} to manage stale connections
*
* @see IdleConnectionReaper
*/
public static final boolean DEFAULT_USE_REAPER = true;
/** The HTTP user agent header passed with all HTTP requests. */
private String userAgent = DEFAULT_USER_AGENT;
/**
* The maximum number of times that a retryable failed request (ex: a 5xx
* response from a service) will be retried. Or -1 if the user has not
* explicitly set this value, in which case the configured RetryPolicy will
* be used to control the retry count.
*/
private int maxErrorRetry = -1;
/** The retry policy upon failed requests. **/
private RetryPolicy retryPolicy = DEFAULT_RETRY_POLICY;
/** Optionally specifies the local address to bind to */
private InetAddress localAddress;
/**
* The protocol to use when connecting to Amazon Web Services.
*
* The default configuration is to use HTTPS for all requests for increased
* security.
*/
private Protocol protocol = Protocol.HTTPS;
/** Optionally specifies the proxy host to connect through. */
private String proxyHost = null;
/** Optionally specifies the port on the proxy host to connect through. */
private int proxyPort = -1;
/** Optionally specifies the user name to use when connecting through a proxy. */
private String proxyUsername = null;
/** Optionally specifies the password to use when connecting through a proxy. */
private String proxyPassword = null;
/** Optional Windows domain name for configuring NTLM proxy support. */
private String proxyDomain = null;
/** Optional Windows workstation name for configuring NTLM proxy support. */
private String proxyWorkstation = null;
/**
* Whether to pre-emptively authenticate against a proxy server using basic
* authentication
*/
private boolean preemptiveBasicProxyAuth;
/** The maximum number of open HTTP connections. */
private int maxConnections = DEFAULT_MAX_CONNECTIONS;
/**
* The amount of time to wait (in milliseconds) for data to be transfered
* over an established, open connection before the connection is timed out.
* A value of 0 means infinity, and is not recommended.
*/
private int socketTimeout = DEFAULT_SOCKET_TIMEOUT;
/**
* The amount of time to wait (in milliseconds) when initially establishing
* a connection before giving up and timing out. A value of 0 means
* infinity, and is not recommended.
*/
private int connectionTimeout = DEFAULT_CONNECTION_TIMEOUT;
/**
* Optional size hint (in bytes) for the low level TCP send buffer. This is
* an advanced option for advanced users who want to tune low level TCP
* parameters to try and squeeze out more performance.
*/
private int socketSendBufferSizeHint = 0;
/**
* Optional size hint (in bytes) for the low level TCP receive buffer. This
* is an advanced option for advanced users who want to tune low level TCP
* parameters to try and squeeze out more performance.
*/
private int socketReceiveBufferSizeHint = 0;
/**
* Optional whether to use the {@link IdleConnectionReaper} to manage stale connections. A reason for not running
* the {@link IdleConnectionReaper} can be if running in an environment where the modifyThread and modifyThreadGroup
* permissions are not allowed.
*/
private boolean useReaper = DEFAULT_USE_REAPER;
/**
* Optional override to control which signature algorithm should be used to
* sign requests to the service. If not explicitly set, the client will
* determine the algorithm to use by inspecting a configuration file baked
* in to the SDK.
*/
private String signerOverride;
public ClientConfiguration() {}
public ClientConfiguration(ClientConfiguration other) {
this.connectionTimeout = other.connectionTimeout;
this.maxConnections = other.maxConnections;
this.maxErrorRetry = other.maxErrorRetry;
this.retryPolicy = other.retryPolicy;
this.localAddress = other.localAddress;
this.protocol = other.protocol;
this.proxyDomain = other.proxyDomain;
this.proxyHost = other.proxyHost;
this.proxyPassword = other.proxyPassword;
this.proxyPort = other.proxyPort;
this.proxyUsername = other.proxyUsername;
this.proxyWorkstation = other.proxyWorkstation;
this.preemptiveBasicProxyAuth = other.preemptiveBasicProxyAuth;
this.socketTimeout = other.socketTimeout;
this.userAgent = other.userAgent;
this.useReaper = other.useReaper;
this.socketReceiveBufferSizeHint = other.socketReceiveBufferSizeHint;
this.socketSendBufferSizeHint = other.socketSendBufferSizeHint;
this.signerOverride = other.signerOverride;
}
/**
* Returns the protocol (HTTP or HTTPS) to use when connecting to
* Amazon Web Services.
*
* The default configuration is to use HTTPS for all requests for increased
* security.
*
* Individual clients can also override this setting by explicitly including
* the protocol as part of the endpoint URL when calling
* {@link AmazonWebServiceClient#setEndpoint(String)}.
*
* @return The protocol to use when connecting to Amazon Web Services.
*/
public Protocol getProtocol() {
return protocol;
}
/**
* Sets the protocol (i.e. HTTP or HTTPS) to use when connecting to Amazon
* Web Services.
*
* The default configuration is to use HTTPS for all requests for increased
* security.
*
* Individual clients can also override this setting by explicitly including
* the protocol as part of the endpoint URL when calling
* {@link AmazonWebServiceClient#setEndpoint(String)}.
*
* @param protocol
* The protocol to use when connecting to Amazon Web Services.
*/
public void setProtocol(Protocol protocol) {
this.protocol = protocol;
}
/**
* Sets the protocol (i.e. HTTP or HTTPS) to use when connecting to Amazon
* Web Services, and returns the updated ClientConfiguration object so that
* additional calls may be chained together.
*
* The default configuration is to use HTTPS for all requests for increased
* security.
*
* Individual clients can also override this setting by explicitly including
* the protocol as part of the endpoint URL when calling
* {@link AmazonWebServiceClient#setEndpoint(String)}.
*
* @param protocol
* The protocol to use when connecting to Amazon Web Services.
*
* @return The updated ClientConfiguration object with the new max HTTP
* connections setting.
*/
public ClientConfiguration withProtocol(Protocol protocol) {
setProtocol(protocol);
return this;
}
/**
* Returns the maximum number of allowed open HTTP connections.
*
* @return The maximum number of allowed open HTTP connections.
*/
public int getMaxConnections() {
return maxConnections;
}
/**
* Sets the maximum number of allowed open HTTP connections.
*
* @param maxConnections
* The maximum number of allowed open HTTP connections.
*/
public void setMaxConnections(int maxConnections) {
this.maxConnections = maxConnections;
}
/**
* Sets the maximum number of allowed open HTTP connections and returns the
* updated ClientConfiguration object.
*
* @param maxConnections
* The maximum number of allowed open HTTP connections.
* @return The updated ClientConfiguration object with the new max HTTP
* connections setting.
*/
public ClientConfiguration withMaxConnections(int maxConnections) {
setMaxConnections(maxConnections);
return this;
}
/**
* Returns the HTTP user agent header to send with all requests.
*
* @return The user agent string to use when sending requests.
*/
public String getUserAgent() {
return userAgent;
}
/**
* Sets the HTTP user agent header to send with all requests.
*
* @param userAgent
* The user agent string to use when sending requests.
*/
public void setUserAgent(String userAgent) {
this.userAgent = userAgent;
}
/**
* Sets the HTTP user agent header used in requests and returns the updated
* ClientConfiguration object.
*
* @param userAgent
* The user agent string to use when sending requests.
*
* @return The updated ClientConfiguration object.
*/
public ClientConfiguration withUserAgent(String userAgent) {
setUserAgent(userAgent);
return this;
}
/**
* Returns the optional local address the client will bind to.
*
* @return The local address the client will bind to.
*/
public InetAddress getLocalAddress() {
return localAddress;
}
/**
* Sets the optional local address the client will bind to.
*
* @param localAddress
* The local address the client will bind to.
*/
public void setLocalAddress(InetAddress localAddress) {
this.localAddress = localAddress;
}
/**
* Sets the optional local address the client will bind to and returns
* the updated ClientConfiguration object.
*
* @param localAddress
* The local address the client will bind to.
*
* @return The updated ClientConfiguration object.
*/
public ClientConfiguration withLocalAddress(InetAddress localAddress) {
setLocalAddress(localAddress);
return this;
}
/**
* Returns the optional proxy host the client will connect through.
*
* @return The proxy host the client will connect through.
*/
public String getProxyHost() {
return proxyHost;
}
/**
* Sets the optional proxy host the client will connect through.
*
* @param proxyHost
* The proxy host the client will connect through.
*/
public void setProxyHost(String proxyHost) {
this.proxyHost = proxyHost;
}
/**
* Sets the optional proxy host the client will connect through and returns
* the updated ClientConfiguration object.
*
* @param proxyHost
* The proxy host the client will connect through.
*
* @return The updated ClientConfiguration object.
*/
public ClientConfiguration withProxyHost(String proxyHost) {
setProxyHost(proxyHost);
return this;
}
/**
* Returns the optional proxy port the client will connect through.
*
* @return The proxy port the client will connect through.
*/
public int getProxyPort() {
return proxyPort;
}
/**
* Sets the optional proxy port the client will connect through.
*
* @param proxyPort
* The proxy port the client will connect through.
*/
public void setProxyPort(int proxyPort) {
this.proxyPort = proxyPort;
}
/**
* Sets the optional proxy port the client will connect through and returns
* the updated ClientConfiguration object.
*
* @param proxyPort
* The proxy port the client will connect through.
*
* @return The updated ClientConfiguration object.
*/
public ClientConfiguration withProxyPort(int proxyPort) {
setProxyPort(proxyPort);
return this;
}
/**
* Returns the optional proxy user name to use if connecting through a
* proxy.
*
* @return The optional proxy user name the configured client will use if
* connecting through a proxy.
*/
public String getProxyUsername() {
return proxyUsername;
}
/**
* Sets the optional proxy user name to use if connecting through a proxy.
*
* @param proxyUsername
* The proxy user name to use if connecting through a proxy.
*/
public void setProxyUsername(String proxyUsername) {
this.proxyUsername = proxyUsername;
}
/**
* Sets the optional proxy user name and returns the updated
* ClientConfiguration object.
*
* @param proxyUsername
* The proxy user name to use if connecting through a proxy.
*
* @return The updated ClientConfiguration object.
*/
public ClientConfiguration withProxyUsername(String proxyUsername) {
setProxyUsername(proxyUsername);
return this;
}
/**
* Returns the optional proxy password to use when connecting through a
* proxy.
*
* @return The password to use when connecting through a proxy.
*/
public String getProxyPassword() {
return proxyPassword;
}
/**
* Sets the optional proxy password to use when connecting through a proxy.
*
* @param proxyPassword
* The password to use when connecting through a proxy.
*/
public void setProxyPassword(String proxyPassword) {
this.proxyPassword = proxyPassword;
}
/**
* Sets the optional proxy password to use when connecting through a proxy,
* and returns the updated ClientConfiguration object.
*
* @param proxyPassword
* The password to use when connecting through a proxy.
*
* @return The updated ClientConfiguration object.
*/
public ClientConfiguration withProxyPassword(String proxyPassword) {
setProxyPassword(proxyPassword);
return this;
}
/**
* Returns the optional Windows domain name for configuring an NTLM proxy.
* If you aren't using a Windows NTLM proxy, you do not need to set this
* field.
*
* @return The optional Windows domain name for configuring an NTLM proxy.
*/
public String getProxyDomain() {
return proxyDomain;
}
/**
* Sets the optional Windows domain name for configuration an NTLM proxy.
* If you aren't using a Windows NTLM proxy, you do not need to set this
* field.
*
* @param proxyDomain
* The optional Windows domain name for configuring an NTLM
* proxy.
*/
public void setProxyDomain(String proxyDomain) {
this.proxyDomain = proxyDomain;
}
/**
* Sets the optional Windows domain name for configuration an NTLM proxy and
* returns a reference to this updated ClientConfiguration object so that
* additional method calls can be chained together. If you aren't using a
* Windows NTLM proxy, you do not need to set this field.
*
* @param proxyDomain
* The optional Windows domain name for configuring an NTLM
* proxy.
*
* @return The updated ClientConfiguration object.
*/
public ClientConfiguration withProxyDomain(String proxyDomain) {
setProxyDomain(proxyDomain);
return this;
}
/**
* Returns the optional Windows workstation name for configuring NTLM proxy
* support. If you aren't using a Windows NTLM proxy, you do not need to set
* this field.
*
* @return The optional Windows workstation name for configuring NTLM proxy
* support.
*/
public String getProxyWorkstation() {
return proxyWorkstation;
}
/**
* Sets the optional Windows workstation name for configuring NTLM proxy
* support. If you aren't using a Windows NTLM proxy, you do not need to set
* this field.
*
* @param proxyWorkstation
* The optional Windows workstation name for configuring NTLM
* proxy support.
*/
public void setProxyWorkstation(String proxyWorkstation) {
this.proxyWorkstation = proxyWorkstation;
}
/**
* Sets the optional Windows workstation name for configuring NTLM proxy
* support, and returns the updated ClientConfiguration object so that
* additional method calls can be chained together. If you aren't using a
* Windows NTLM proxy, you do not need to set this field.
*
* @param proxyWorkstation
* The optional Windows workstation name for configuring NTLM
* proxy support.
*
* @return The updated ClientConfiguration object.
*/
public ClientConfiguration withProxyWorkstation(String proxyWorkstation) {
setProxyWorkstation(proxyWorkstation);
return this;
}
/**
* Returns the retry policy upon failed requests.
*
* @return The retry policy upon failed requests.
*/
public RetryPolicy getRetryPolicy() {
return retryPolicy;
}
/**
* Sets the retry policy upon failed requests. User could specify whether
* the RetryPolicy should honor maxErrorRetry set by
* {@link #setMaxErrorRetry(int)}.
*
* @param retryPolicy
* The retry policy upon failed requests.
*/
public void setRetryPolicy(RetryPolicy retryPolicy) {
this.retryPolicy = retryPolicy;
}
/**
* Sets the retry policy upon failed requests, and returns the updated
* ClientConfiguration object. User could specify whether the RetryPolicy
* should honor maxErrorRetry set by {@link #setMaxErrorRetry(int)}
*
* @param retryPolicy
* The retry policy upon failed requests.
*/
public ClientConfiguration withRetryPolicy(RetryPolicy retryPolicy) {
setRetryPolicy(retryPolicy);
return this;
}
/**
* Returns the maximum number of retry attempts for failed retryable
* requests (ex: 5xx error responses from a service). This method returns -1
* before a maxErrorRetry value is explicitly set by
* {@link #setMaxErrorRetry(int)}, in which case the configured RetryPolicy
* will be used to control the retry count.
*
* @return The maximum number of retry attempts for failed retryable
* requests, or -1 if maxErrorRetry has not been set by
* {@link #setMaxErrorRetry(int)}.
*/
public int getMaxErrorRetry() {
return maxErrorRetry;
}
/**
* Sets the maximum number of retry attempts for failed retryable requests
* (ex: 5xx error responses from services).
*
* @param maxErrorRetry
* The maximum number of retry attempts for failed retryable
* requests. This value should not be negative.
*/
public void setMaxErrorRetry(int maxErrorRetry) {
if (maxErrorRetry < 0) {
throw new IllegalArgumentException("maxErrorRetry shoud be non-negative");
}
this.maxErrorRetry = maxErrorRetry;
}
/**
* Sets the maximum number of retry attempts for failed retryable requests
* (ex: 5xx error responses from services), and returns the updated
* ClientConfiguration object.
*
* @param maxErrorRetry
* The maximum number of retry attempts for failed retryable
* requests. This value should not be negative.
*
* @return The updated ClientConfiguration object.
*/
public ClientConfiguration withMaxErrorRetry(int maxErrorRetry) {
setMaxErrorRetry(maxErrorRetry);
return this;
}
/**
* Returns the amount of time to wait (in milliseconds) for data to be
* transfered over an established, open connection before the connection
* times out and is closed. A value of 0 means infinity, and isn't
* recommended.
*
* @return The amount of time to wait (in milliseconds) for data to be
* transfered over an established, open connection before the
* connection times out and is closed.
*/
public int getSocketTimeout() {
return socketTimeout;
}
/**
* Sets the amount of time to wait (in milliseconds) for data to be
* transfered over an established, open connection before the connection
* times out and is closed. A value of 0 means infinity, and isn't recommended.
*
* @param socketTimeout
* The amount of time to wait (in milliseconds) for data to be
* transfered over an established, open connection before the
* connection is times out and is closed.
*/
public void setSocketTimeout(int socketTimeout) {
this.socketTimeout = socketTimeout;
}
/**
* Sets the amount of time to wait (in milliseconds) for data to be
* transfered over an established, open connection before the connection
* times out and is closed, and returns the updated ClientConfiguration
* object so that additional method calls may be chained together.
*
* @param socketTimeout
* The amount of time to wait (in milliseconds) for data to be
* transfered over an established, open connection before the
* connection is times out and is closed.
*
* @return The updated ClientConfiguration object.
*/
public ClientConfiguration withSocketTimeout(int socketTimeout) {
setSocketTimeout(socketTimeout);
return this;
}
/**
* Returns the amount of time to wait (in milliseconds) when initially
* establishing a connection before giving up and timing out. A value of 0
* means infinity, and is not recommended.
*
* @return The amount of time to wait (in milliseconds) when initially
* establishing a connection before giving up and timing out.
*/
public int getConnectionTimeout() {
return connectionTimeout;
}
/**
* Sets the amount of time to wait (in milliseconds) when initially
* establishing a connection before giving up and timing out. A value of 0
* means infinity, and is not recommended.
*
* @param connectionTimeout
* The amount of time to wait (in milliseconds) when initially
* establishing a connection before giving up and timing out.
*/
public void setConnectionTimeout(int connectionTimeout) {
this.connectionTimeout = connectionTimeout;
}
/**
* Sets the amount of time to wait (in milliseconds) when initially
* establishing a connection before giving up and timing out, and returns
* the updated ClientConfiguration object so that additional method calls
* may be chained together.
*
* @param connectionTimeout
* the amount of time to wait (in milliseconds) when initially
* establishing a connection before giving up and timing out.
*
* @return The updated ClientConfiguration object.
*/
public ClientConfiguration withConnectionTimeout(int connectionTimeout) {
setConnectionTimeout(connectionTimeout);
return this;
}
/**
* Checks if the {@link IdleConnectionReaper} is to be started
*
* @return if the {@link IdleConnectionReaper} is to be started
*/
public boolean useReaper() {
return useReaper;
}
/**
* Sets whether the {@link IdleConnectionReaper} is to be started as a daemon thread
*
* @param use whether the {@link IdleConnectionReaper} is to be started as a daemon thread
*
* @see IdleConnectionReaper
*/
public void setUseReaper(boolean use) {
this.useReaper = use;
}
/**
* Sets whether the {@link IdleConnectionReaper} is to be started as a daemon thread
*
* @param use the {@link IdleConnectionReaper} is to be started as a daemon thread
*
* @return The updated ClientConfiguration object.
*/
public ClientConfiguration withReaper(boolean use) {
setUseReaper(use);
return this;
}
/**
* Returns the optional size hints (in bytes) for the low level TCP send and
* receive buffers. This is an advanced option for advanced users who want
* to tune low level TCP parameters to try and squeeze out more performance.
*
* The optimal TCP buffer sizes for a particular application are highly
* dependent on network configuration and operating system configuration and
* capabilities. For example, most modern operating systems provide
* auto-tuning functionality for TCP buffer sizes, which can have a big
* impact on performance for TCP connections that are held open long enough
* for the auto-tuning to optimize buffer sizes.
*
* Large buffer sizes (ex: 2MB) will allow the operating system to buffer
* more data in memory without requiring the remote server to acknowledge
* receipt of that information, so can be particularly useful when the
* network has high latency.
*
* This is only a hint, and the operating system may choose not to
* honor it. When using this option, users should always check the
* operating system's configured limits and defaults. Most OS's have a
* maximum TCP buffer size limit configured, and won't let you go beyond
* that limit unless you explicitly raise the max TCP buffer size limit.
*
* There are many resources available online to help with configuring TCP
* buffer sizes and operating system specific TCP settings, including:
*
* - http://onlamp.com/pub/a/onlamp/2005/11/17/tcp_tuning.html
* - http://fasterdata.es.net/TCP-tuning/
*
*
* @return A two element array containing first the TCP send buffer size
* hint and then the TCP receive buffer size hint.
*/
public int[] getSocketBufferSizeHints() {
return new int[] {socketSendBufferSizeHint, socketReceiveBufferSizeHint};
}
/**
* Sets the optional size hints (in bytes) for the low level TCP send and
* receive buffers. This is an advanced option for advanced users who want
* to tune low level TCP parameters to try and squeeze out more performance.
*
* The optimal TCP buffer sizes for a particular application are highly
* dependent on network configuration and operating system configuration and
* capabilities. For example, most modern operating systems provide
* auto-tuning functionality for TCP buffer sizes, which can have a big
* impact on performance for TCP connections that are held open long enough
* for the auto-tuning to optimize buffer sizes.
*
* Large buffer sizes (ex: 2MB) will allow the operating system to buffer
* more data in memory without requiring the remote server to acknowledge
* receipt of that information, so can be particularly useful when the
* network has high latency.
*
* This is only a hint, and the operating system may choose not to
* honor it. When using this option, users should always check the
* operating system's configured limits and defaults. Most OS's have a
* maximum TCP buffer size limit configured, and won't let you go beyond
* that limit unless you explicitly raise the max TCP buffer size limit.
*
* There are many resources available online to help with configuring TCP
* buffer sizes and operating system specific TCP settings, including:
*
* - http://onlamp.com/pub/a/onlamp/2005/11/17/tcp_tuning.html
* - http://fasterdata.es.net/TCP-tuning/
*
*
* @param socketSendBufferSizeHint
* The size hint (in bytes) for the low level TCP send buffer.
* @param socketReceiveBufferSizeHint
* The size hint (in bytes) for the low level TCP receive buffer.
*/
public void setSocketBufferSizeHints(
int socketSendBufferSizeHint, int socketReceiveBufferSizeHint) {
this.socketSendBufferSizeHint = socketSendBufferSizeHint;
this.socketReceiveBufferSizeHint = socketReceiveBufferSizeHint;
}
/**
* Sets the optional size hints (in bytes) for the low level TCP send and
* receive buffers, and returns the updated ClientConfiguration object so
* that additional method calls may be chained together.
*
* This is an advanced option for advanced users who want to tune low level
* TCP parameters to try and squeeze out more performance.
*
* The optimal TCP buffer sizes for a particular application are highly
* dependent on network configuration and operating system configuration and
* capabilities. For example, most modern operating systems provide
* auto-tuning functionality for TCP buffer sizes, which can have a big
* impact on performance for TCP connections that are held open long enough
* for the auto-tuning to optimize buffer sizes.
*
* Large buffer sizes (ex: 2MB) will allow the operating system to buffer
* more data in memory without requiring the remote server to acknowledge
* receipt of that information, so can be particularly useful when the
* network has high latency.
*
* This is only a hint, and the operating system may choose not to
* honor it. When using this option, users should always check the
* operating system's configured limits and defaults. Most OS's have a
* maximum TCP buffer size limit configured, and won't let you go beyond
* that limit unless you explicitly raise the max TCP buffer size limit.
*
* There are many resources available online to help with configuring TCP
* buffer sizes and operating system specific TCP settings, including:
*
* - http://onlamp.com/pub/a/onlamp/2005/11/17/tcp_tuning.html
* - http://fasterdata.es.net/TCP-tuning/
*
*
* @param socketSendBufferSizeHint
* The size hint (in bytes) for the low level TCP send buffer.
* @param socketReceiveBufferSizeHint
* The size hint (in bytes) for the low level TCP receive buffer.
*
* @return The updated ClientConfiguration object.
*/
public ClientConfiguration withSocketBufferSizeHints(
int socketSendBufferSizeHint, int socketReceiveBufferSizeHint) {
setSocketBufferSizeHints(socketSendBufferSizeHint, socketReceiveBufferSizeHint);
return this;
}
/**
* Returns the name of the signature algorithm to use for signing requests
* made by this client. If not set or explicitly set to null, the client
* will choose a signature algorithm to use based on a configuration file
* of supported signature algorithms for the service and region.
*
* Most users do not need to concern themselves with which signature
* algorithm is being used, as the defaults will be sufficient. This
* setting exists only so advanced users can opt in to newer signature
* protocols which have not yet been made the default for a particular
* service/region.
*
* Not all services support all signature algorithms, and configuring an
* unsupported signature algorithm will lead to authentication failures.
* Use me at your own risk, and only after consulting the documentation
* for the service to ensure it actually does supports your chosen
* algorithm.
*
* If non-null, the name returned from this method is used to look up
* a {@code Signer} class implementing the chosen algorithm by the
* {@code com.amazonaws.auth.SignerFactory} class.
*
* @return The signature algorithm to use for this client, or null to use
* the default.
*/
public String getSignerOverride() {
return signerOverride;
}
/**
* Sets the name of the signature algorithm to use for signing requests
* made by this client. If not set or explicitly set to null, the client
* will choose a signature algorithm to use based on a configuration file
* of supported signature algorithms for the service and region.
*
* Most users do not need to concern themselves with which signature
* algorithm is being used, as the defaults will be sufficient. This
* setting exists only so advanced users can opt in to newer signature
* protocols which have not yet been made the default for a particular
* service/region.
*
* Not all services support all signature algorithms, and configuring an
* unsupported signature algorithm will lead to authentication failures.
* Use me at your own risk, and only after consulting the documentation
* for the service to ensure it actually does supports your chosen
* algorithm.
*
* If non-null, the name returned from this method is used to look up
* a {@code Signer} class implementing the chosen algorithm by the
* {@code com.amazonaws.auth.SignerFactory} class.
*
* @param value The signature algorithm to use for this client, or null
* to use the default.
*/
public void setSignerOverride(final String value) {
signerOverride = value;
}
/**
* Sets the name of the signature algorithm to use for signing requests
* made by this client. If not set or explicitly set to null, the client
* will choose a signature algorithm to use based on a configuration file
* of supported signature algorithms for the service and region.
*
* Most users do not need to concern themselves with which signature
* algorithm is being used, as the defaults will be sufficient. This
* setting exists only so advanced users can opt in to newer signature
* protocols which have not yet been made the default for a particular
* service/region.
*
* Not all services support all signature algorithms, and configuring an
* unsupported signature algorithm will lead to authentication failures.
* Use me at your own risk, and only after consulting the documentation
* for the service to ensure it actually does supports your chosen
* algorithm.
*
* If non-null, the name returned from this method is used to look up
* a {@code Signer} class implementing the chosen algorithm by the
* {@code com.amazonaws.auth.SignerFactory} class.
*
* @param value The signature algorithm to use for this client, or null
* to use the default.
* @return The updated ClientConfiguration object.
*/
public ClientConfiguration withSignerOverride(final String value) {
setSignerOverride(value);
return this;
}
/**
* Returns whether to attempt to authenticate preemptively against proxy servers
* using basic authentication
*
* @return Whether to authenticate preemptively against proxy server.
*/
public boolean isPreemptiveBasicProxyAuth() {
return preemptiveBasicProxyAuth;
}
/**
* Sets whether to attempt to authenticate preemptively against proxy servers
* using basic authentication
*
* @param preemptiveBasicProxyAuth
* Whether to authenticate preemptively against proxy server.
*/
public void setPreemptiveBasicProxyAuth(Boolean preemptiveBasicProxyAuth) {
this.preemptiveBasicProxyAuth = preemptiveBasicProxyAuth;
}
/**
* Sets whether to attempt to authenticate preemptively against proxy
* servers using basic authentication, and returns the updated
* ClientConfiguration object so that additional method calls may be chained
* together.
*
* @param preemptiveBasicProxyAuth
* Whether to authenticate preemptively against proxy server.
* @return The updated ClientConfiguration objectt=
*
*/
public ClientConfiguration withPreemptiveBasicProxyAuth(boolean preemptiveBasicProxyAuth) {
setPreemptiveBasicProxyAuth(preemptiveBasicProxyAuth);
return this;
}
}