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A very lightweight WebSocket client library for Java/Android which aims to implement the WebSocket protocol as defined in RFC 6455
/*
* ====================================================================
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
*
* This parameter expects a value of type {@link Integer}.
*
* @see java.net.SocketOptions#SO_TIMEOUT
*/
public static final String SO_TIMEOUT = "http.socket.timeout";
/**
* Determines whether Nagle's algorithm is to be used. The Nagle's algorithm
* tries to conserve bandwidth by minimizing the number of segments that are
* sent. When applications wish to decrease network latency and increase
* performance, they can disable Nagle's algorithm (that is enable
* TCP_NODELAY). Data will be sent earlier, at the cost of an increase
* in bandwidth consumption.
*
* This parameter expects a value of type {@link Boolean}.
*
* @see java.net.SocketOptions#TCP_NODELAY
*/
public static final String TCP_NODELAY = "http.tcp.nodelay";
/**
* Determines the size of the internal socket buffer used to buffer data
* while receiving / transmitting HTTP messages.
*
* This parameter expects a value of type {@link Integer}.
*
*/
public static final String SOCKET_BUFFER_SIZE = "http.socket.buffer-size";
/**
* Sets SO_LINGER with the specified linger time in seconds. The maximum
* timeout value is platform specific. Value {@code 0} implies that
* the option is disabled. Value {@code -1} implies that the JRE
* default is used. The setting only affects the socket close operation.
*
* This parameter expects a value of type {@link Integer}.
*
* @see java.net.SocketOptions#SO_LINGER
*/
public static final String SO_LINGER = "http.socket.linger";
/**
* Defines whether the socket can be bound even though a previous connection is
* still in a timeout state.
*
* This parameter expects a value of type {@link Boolean}.
*
* @see java.net.Socket#setReuseAddress(boolean)
*
* @since 4.1
*/
public static final String SO_REUSEADDR = "http.socket.reuseaddr";
/**
* Determines the timeout in milliseconds until a connection is established.
* A timeout value of zero is interpreted as an infinite timeout.
*
* Please note this parameter can only be applied to connections that
* are bound to a particular local address.
*
* This parameter expects a value of type {@link Integer}.
*
*/
public static final String CONNECTION_TIMEOUT = "http.connection.timeout";
/**
* Determines whether stale connection check is to be used. The stale
* connection check can cause up to 30 millisecond overhead per request and
* should be used only when appropriate. For performance critical
* operations this check should be disabled.
*
* This parameter expects a value of type {@link Boolean}.
*
*/
public static final String STALE_CONNECTION_CHECK = "http.connection.stalecheck";
/**
* Determines the maximum line length limit. If set to a positive value,
* any HTTP line exceeding this limit will cause an IOException. A negative
* or zero value will effectively disable the check.
*
* This parameter expects a value of type {@link Integer}.
*
*/
public static final String MAX_LINE_LENGTH = "http.connection.max-line-length";
/**
* Determines the maximum HTTP header count allowed. If set to a positive
* value, the number of HTTP headers received from the data stream exceeding
* this limit will cause an IOException. A negative or zero value will
* effectively disable the check.
*
* This parameter expects a value of type {@link Integer}.
*
*/
public static final String MAX_HEADER_COUNT = "http.connection.max-header-count";
/**
* Defines the size limit below which data chunks should be buffered in a session I/O buffer
* in order to minimize native method invocations on the underlying network socket.
* The optimal value of this parameter can be platform specific and defines a trade-off
* between performance of memory copy operations and that of native method invocation.
*
* This parameter expects a value of type {@link Integer}.
*
*
* @since 4.1
*/
public static final String MIN_CHUNK_LIMIT = "http.connection.min-chunk-limit";
/**
* Defines whether or not TCP is to send automatically a keepalive probe to the peer
* after an interval of inactivity (no data exchanged in either direction) between this
* host and the peer. The purpose of this option is to detect if the peer host crashes.
*
* This parameter expects a value of type {@link Boolean}.
*
* @see java.net.SocketOptions#SO_KEEPALIVE
* @since 4.2
*/
public static final String SO_KEEPALIVE = "http.socket.keepalive";
}