mirror of
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248 lines
9.5 KiB
Java
248 lines
9.5 KiB
Java
/*
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* Copyright (c) 2005, 2022, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package sun.net.httpserver;
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import java.lang.System.Logger;
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import java.lang.System.Logger.Level;
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import java.security.PrivilegedAction;
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/**
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* Parameters that users will not likely need to set
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* but are useful for debugging
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*/
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@SuppressWarnings("removal")
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class ServerConfig {
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private static final int DEFAULT_IDLE_TIMER_SCHEDULE_MILLIS = 10000 ; // 10 sec.
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private static final long DEFAULT_IDLE_INTERVAL_IN_SECS = 30;
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private static final int DEFAULT_MAX_CONNECTIONS = -1 ; // no limit on maximum connections
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private static final int DEFAULT_MAX_IDLE_CONNECTIONS = 200 ;
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private static final long DEFAULT_MAX_REQ_TIME = -1; // default: forever
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private static final long DEFAULT_MAX_RSP_TIME = -1; // default: forever
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// default timer schedule, in milli seconds, for the timer task that's responsible for
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// timing out request/response if max request/response time is configured
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private static final long DEFAULT_REQ_RSP_TIMER_TASK_SCHEDULE_MILLIS = 1000;
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private static final int DEFAULT_MAX_REQ_HEADERS = 200;
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private static final long DEFAULT_DRAIN_AMOUNT = 64 * 1024;
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private static long idleTimerScheduleMillis;
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private static long idleIntervalMillis;
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// The maximum number of bytes to drain from an inputstream
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private static long drainAmount;
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// the maximum number of connections that the server will allow to be open
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// after which it will no longer "accept()" any new connections, till the
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// current connection count goes down due to completion of processing the requests
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private static int maxConnections;
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private static int maxIdleConnections;
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// The maximum number of request headers allowable
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private static int maxReqHeaders;
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// max time a request or response is allowed to take
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private static long maxReqTime;
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private static long maxRspTime;
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private static long reqRspTimerScheduleMillis;
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private static boolean debug;
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// the value of the TCP_NODELAY socket-level option
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private static boolean noDelay;
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static {
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java.security.AccessController.doPrivileged(
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new PrivilegedAction<Void>() {
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@Override
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public Void run () {
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idleIntervalMillis = Long.getLong("sun.net.httpserver.idleInterval",
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DEFAULT_IDLE_INTERVAL_IN_SECS) * 1000;
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if (idleIntervalMillis <= 0) {
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idleIntervalMillis = DEFAULT_IDLE_INTERVAL_IN_SECS * 1000;
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}
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idleTimerScheduleMillis = Long.getLong("sun.net.httpserver.clockTick",
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DEFAULT_IDLE_TIMER_SCHEDULE_MILLIS);
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if (idleTimerScheduleMillis <= 0) {
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// ignore zero or negative value and use the default schedule
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idleTimerScheduleMillis = DEFAULT_IDLE_TIMER_SCHEDULE_MILLIS;
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}
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maxConnections = Integer.getInteger(
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"jdk.httpserver.maxConnections",
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DEFAULT_MAX_CONNECTIONS);
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maxIdleConnections = Integer.getInteger(
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"sun.net.httpserver.maxIdleConnections",
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DEFAULT_MAX_IDLE_CONNECTIONS);
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drainAmount = Long.getLong("sun.net.httpserver.drainAmount",
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DEFAULT_DRAIN_AMOUNT);
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maxReqHeaders = Integer.getInteger(
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"sun.net.httpserver.maxReqHeaders",
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DEFAULT_MAX_REQ_HEADERS);
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if (maxReqHeaders <= 0) {
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maxReqHeaders = DEFAULT_MAX_REQ_HEADERS;
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}
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maxReqTime = Long.getLong("sun.net.httpserver.maxReqTime",
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DEFAULT_MAX_REQ_TIME);
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maxRspTime = Long.getLong("sun.net.httpserver.maxRspTime",
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DEFAULT_MAX_RSP_TIME);
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reqRspTimerScheduleMillis = Long.getLong("sun.net.httpserver.timerMillis",
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DEFAULT_REQ_RSP_TIMER_TASK_SCHEDULE_MILLIS);
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if (reqRspTimerScheduleMillis <= 0) {
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// ignore any negative or zero value for this configuration and reset
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// to default schedule
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reqRspTimerScheduleMillis = DEFAULT_REQ_RSP_TIMER_TASK_SCHEDULE_MILLIS;
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}
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debug = Boolean.getBoolean("sun.net.httpserver.debug");
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noDelay = Boolean.getBoolean("sun.net.httpserver.nodelay");
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return null;
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}
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});
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}
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static void checkLegacyProperties(final Logger logger) {
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// legacy properties that are no longer used
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// print a warning to logger if they are set.
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java.security.AccessController.doPrivileged(
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new PrivilegedAction<Void>() {
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public Void run () {
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if (System.getProperty("sun.net.httpserver.readTimeout")
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!=null)
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{
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logger.log (Level.WARNING,
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"sun.net.httpserver.readTimeout "+
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"property is no longer used. "+
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"Use sun.net.httpserver.maxReqTime instead."
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);
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}
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if (System.getProperty("sun.net.httpserver.writeTimeout")
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!=null)
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{
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logger.log (Level.WARNING,
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"sun.net.httpserver.writeTimeout "+
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"property is no longer used. Use "+
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"sun.net.httpserver.maxRspTime instead."
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);
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}
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if (System.getProperty("sun.net.httpserver.selCacheTimeout")
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!=null)
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{
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logger.log (Level.WARNING,
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"sun.net.httpserver.selCacheTimeout "+
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"property is no longer used."
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);
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}
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return null;
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}
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}
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);
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}
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static boolean debugEnabled() {
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return debug;
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}
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/**
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* {@return Returns the maximum duration, in milli seconds, a connection can be idle}
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*/
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static long getIdleIntervalMillis() {
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return idleIntervalMillis;
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}
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/**
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* {@return Returns the schedule, in milli seconds, for the timer task that is responsible
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* for managing the idle connections}
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*/
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static long getIdleTimerScheduleMillis() {
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return idleTimerScheduleMillis;
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}
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/**
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* @return Returns the maximum number of connections that can be open at any given time.
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* This method can return a value of 0 or negative to represent that the limit hasn't
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* been configured.
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*/
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static int getMaxConnections() {
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return maxConnections;
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}
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/**
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* @return Returns the maximum number of connections that can be idle. This method
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* can return a value of 0 or negative.
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*/
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static int getMaxIdleConnections() {
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return maxIdleConnections;
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}
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static long getDrainAmount() {
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return drainAmount;
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}
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static int getMaxReqHeaders() {
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return maxReqHeaders;
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}
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/**
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* @return Returns the maximum amount of time the server will wait for the request to be read
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* completely. This method can return a value of 0 or negative to imply no maximum limit has
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* been configured.
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*/
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static long getMaxReqTime() {
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return maxReqTime;
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}
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/**
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* @return Returns the maximum amount of time the server will wait for the response to be generated
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* for a request that is being processed. This method can return a value of 0 or negative to
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* imply no maximum limit has been configured.
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*/
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static long getMaxRspTime() {
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return maxRspTime;
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}
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/**
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* {@return Returns the timer schedule of the task that's responsible for timing out
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* request/response that have been running longer than any configured timeout}
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*/
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static long getReqRspTimerScheduleMillis() {
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return reqRspTimerScheduleMillis;
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}
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static boolean noDelay() {
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return noDelay;
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}
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}
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