Author: markt
Date: Mon Oct 25 16:37:14 2010
New Revision: 1027187
URL: http://svn.apache.org/viewvc?rev=1027187&view=rev
Log:
Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=50078
Fix threading issues in EL caches and make cache sizes configurable
Threading patch provided by Takayoshi Kimura
Modified:
tomcat/tc6.0.x/trunk/ (props changed)
tomcat/tc6.0.x/trunk/STATUS.txt
tomcat/tc6.0.x/trunk/java/javax/el/BeanELResolver.java
tomcat/tc6.0.x/trunk/java/org/apache/el/lang/ExpressionBuilder.java
tomcat/tc6.0.x/trunk/java/org/apache/el/util/ConcurrentCache.java
tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml
tomcat/tc6.0.x/trunk/webapps/docs/config/systemprops.xml
Propchange: tomcat/tc6.0.x/trunk/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Mon Oct 25 16:37:14 2010
@@ -1 +1 @@
-/tomcat/trunk:601180,606992,612607,630314,640888,652744,653247,666232,673796,673820,677910,683969,683982,684001,684081,684234,684269-684270,685177,687503,687645,689402,690781,691392,691805,692748,693378,694992,695053,695311,696780,696782,698012,698227,698236,698613,699427,699634,701355,709294,709811,709816,710063,710066,710125,710205,711126,711600,712461,712467,713953,714002,718360,719119,719124,719602,719626,719628,720046,720069,721040,721286,721708,721886,723404,723738,726052,727303,728032,728768,728947,729057,729567,729569,729571,729681,729809,729815,729934,730250,730590,731651,732859,732863,734734,740675,740684,742677,742697,742714,744160,744238,746321,746384,746425,747834,747863,748344,750258,750291,750921,751286-751287,751289,751295,752323,753039,757335,757774,758249,758365,758596,758616,758664,759074,761601,762868,762929,762936-762937,763166,763183,763193,763228,763262,763298,763302,763325,763599,763611,763654,763681,763706,764985,764997,765662,768335,769979,770716,77
0809,770876,772872,776921,776924,776935,776945,777464,777466,777576,777625,778379,778523-778524,781528,781779,782145,782791,783316,783696,783724,783756,783762,783766,783863,783934,784453,784602,784614,785381,785688,785768,785859,786468,786487,786490,786496,786667,787627,787770,787985,789389,790405,791041,791184,791194,791224,791243,791326,791328,791789,792740,793372,793757,793882,793981,794082,794673,794822,795043,795152,795210,795457,795466,797168,797425,797596,797607,802727,802940,804462,804544,804734,805153,809131,809603,810916,810977,812125,812137,812432,813001,813013,813866,814180,814708,814876,815972,816252,817442,817822,819339,819361,820110,820132,820874,820954,821397,828196,828201,828210,828225,828759,830378-830379,830999,831106,831774,831785,831828,831850,831860,832214,832218,833121,833545,834047,835036,835336,836405,881396,881412,883130,883134,883146,883165,883177,883362,883565,884341,885038,885231,885241,885260,885901,885991,886019,888072,889363,889606,889716,8901
39,890265,890349-890350,890417,891185-891187,891583,892198,892341,892415,892464,892555,892812,892814,892817,892843,892887,893321,893493,894580,894586,894805,894831,895013,895045,895057,895191,895392,895703,896370,896384,897380-897381,897776,898126,898256,898468,898527,898555,898558,898718,898836,898906,899284,899348,899420,899653,899769-899770,899783,899788,899792,899916,899918-899919,899935,899949,903916,905020,905151,905722,905728,905735,907311,907513,907538,907652,907819,907825,907864,908002,908721,908754,908759,909097,909206,909212,909525,909636,909869,909875,909887,910266,910370,910442,910471,910485,910974,915226,915737,915861,916097,916141,916157,916170,917598,917633,918093,918489,918594,918684,918787,918792,918799,918803,918885,919851,919914,920025,920055,920298,920449,920596,920824,920840,921444,922010,926716,927062,927621,928482,928695,928732,928798,931709,932357,932967,935105,935983,939491,939551,940064,941356,941463,944409,944416,945231,945808,945835,945841,946686
,948057,950164,950596,950614,950851,950905,951615,953434,954435,955648,955655,956832,957130,957830,958192,960701,963868,964614,966177-966178,966292,966692,981815,991837,993042,1001955,1002185,1002263,1002349,1002359,1002362,1002481,1002514,1003481,1003488,1003556,1003572,1003581,1003861,1004868-1004869,1005452,1005467,1005647,1005802,1022120,1022134,1024224,1026042
+/tomcat/trunk:601180,606992,612607,630314,640888,652744,653247,666232,673796,673820,677910,683969,683982,684001,684081,684234,684269-684270,685177,687503,687645,689402,690781,691392,691805,692748,693378,694992,695053,695311,696780,696782,698012,698227,698236,698613,699427,699634,701355,709294,709811,709816,710063,710066,710125,710205,711126,711600,712461,712467,713953,714002,718360,719119,719124,719602,719626,719628,720046,720069,721040,721286,721708,721886,723404,723738,726052,727303,728032,728768,728947,729057,729567,729569,729571,729681,729809,729815,729934,730250,730590,731651,732859,732863,734734,740675,740684,742677,742697,742714,744160,744238,746321,746384,746425,747834,747863,748344,750258,750291,750921,751286-751287,751289,751295,752323,753039,757335,757774,758249,758365,758596,758616,758664,759074,761601,762868,762929,762936-762937,763166,763183,763193,763228,763262,763298,763302,763325,763599,763611,763654,763681,763706,764985,764997,765662,768335,769979,770716,77
0809,770876,772872,776921,776924,776935,776945,777464,777466,777576,777625,778379,778523-778524,781528,781779,782145,782791,783316,783696,783724,783756,783762,783766,783863,783934,784453,784602,784614,785381,785688,785768,785859,786468,786487,786490,786496,786667,787627,787770,787985,789389,790405,791041,791184,791194,791224,791243,791326,791328,791789,792740,793372,793757,793882,793981,794082,794673,794822,795043,795152,795210,795457,795466,797168,797425,797596,797607,802727,802940,804462,804544,804734,805153,809131,809603,810916,810977,812125,812137,812432,813001,813013,813866,814180,814708,814876,815972,816252,817442,817822,819339,819361,820110,820132,820874,820954,821397,828196,828201,828210,828225,828759,830378-830379,830999,831106,831774,831785,831828,831850,831860,832214,832218,833121,833545,834047,835036,835336,836405,881396,881412,883130,883134,883146,883165,883177,883362,883565,884341,885038,885231,885241,885260,885901,885991,886019,888072,889363,889606,889716,8901
39,890265,890349-890350,890417,891185-891187,891583,892198,892341,892415,892464,892555,892812,892814,892817,892843,892887,893321,893493,894580,894586,894805,894831,895013,895045,895057,895191,895392,895703,896370,896384,897380-897381,897776,898126,898256,898468,898527,898555,898558,898718,898836,898906,899284,899348,899420,899653,899769-899770,899783,899788,899792,899916,899918-899919,899935,899949,903916,905020,905151,905722,905728,905735,907311,907513,907538,907652,907819,907825,907864,908002,908721,908754,908759,909097,909206,909212,909525,909636,909869,909875,909887,910266,910370,910442,910471,910485,910974,915226,915737,915861,916097,916141,916157,916170,917598,917633,918093,918489,918594,918684,918787,918792,918799,918803,918885,919851,919914,920025,920055,920298,920449,920596,920824,920840,921444,922010,926716,927062,927621,928482,928695,928732,928798,931709,932357,932967,935105,935983,939491,939551,940064,941356,941463,944409,944416,945231,945808,945835,945841,946686
,948057,950164,950596,950614,950851,950905,951615,953434,954435,955648,955655,956832,957130,957830,958192,960701,963868,964614,966177-966178,966292,966692,981815,991837,993042,1001955,1002185,1002263,1002349,1002359,1002362,1002481,1002514,1003481,1003488,1003556,1003572,1003581,1003861,1004868-1004869,1005452,1005467,1005647,1005802,1022120,1022134,1022606,1022623,1024224,1026042
Modified: tomcat/tc6.0.x/trunk/STATUS.txt
URL:
http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/STATUS.txt?rev=1027187&r1=1027186&r2=1027187&view=diff
==============================================================================
--- tomcat/tc6.0.x/trunk/STATUS.txt (original)
+++ tomcat/tc6.0.x/trunk/STATUS.txt Mon Oct 25 16:37:14 2010
@@ -258,14 +258,6 @@ PATCHES PROPOSED TO BACKPORT:
+1: kkolinko
-1:
-* Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=50078
- Fix threading issues in EL caches and make cache sizes configurable
- Threading patch provided by Takayoshi Kimura
- http://svn.apache.org/viewvc?rev=1022606&view=rev (threading)
- http://svn.apache.org/viewvc?rev=1022623&view=rev (cache sizes)
- +1: markt, kfujino, kkolinko
- -1:
-
* Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=50084
Handle the case where the PID file is read/write accessible but the directory
is not so the PID file can not be deleted
Modified: tomcat/tc6.0.x/trunk/java/javax/el/BeanELResolver.java
URL:
http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/java/javax/el/BeanELResolver.java?rev=1027187&r1=1027186&r2=1027187&view=diff
==============================================================================
--- tomcat/tc6.0.x/trunk/java/javax/el/BeanELResolver.java (original)
+++ tomcat/tc6.0.x/trunk/java/javax/el/BeanELResolver.java Mon Oct 25 16:37:14
2010
@@ -25,6 +25,8 @@ import java.beans.PropertyDescriptor;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Iterator;
@@ -34,10 +36,29 @@ import java.util.concurrent.ConcurrentHa
public class BeanELResolver extends ELResolver {
- private final boolean readOnly;
+ private static final int CACHE_SIZE;
+ private static final String CACHE_SIZE_PROP =
+ "org.apache.el.BeanELResolver.CACHE_SIZE";
+
+ static {
+ if (System.getSecurityManager() == null) {
+ CACHE_SIZE = Integer.parseInt(
+ System.getProperty(CACHE_SIZE_PROP, "1000"));
+ } else {
+ CACHE_SIZE = AccessController.doPrivileged(
+ new PrivilegedAction<Integer>() {
+ public Integer run() {
+ return Integer.valueOf(
+ System.getProperty(CACHE_SIZE_PROP, "1000"));
+ }
+ }).intValue();
+ }
+ }
+
+ private final boolean readOnly;
- private final ConcurrentCache<String, BeanProperties> cache = new
ConcurrentCache<String, BeanProperties>(
- 1000);
+ private final ConcurrentCache<String, BeanProperties> cache =
+ new ConcurrentCache<String, BeanProperties>(CACHE_SIZE);
public BeanELResolver() {
this.readOnly = false;
@@ -311,34 +332,37 @@ public class BeanELResolver extends ELRe
private final static class ConcurrentCache<K,V> {
- private final int size;
- private final Map<K,V> eden;
- private final Map<K,V> longterm;
-
- public ConcurrentCache(int size) {
- this.size = size;
- this.eden = new ConcurrentHashMap<K,V>(size);
- this.longterm = new WeakHashMap<K,V>(size);
- }
-
- public V get(K key) {
- V value = this.eden.get(key);
- if (value == null) {
- value = this.longterm.get(key);
- if (value != null) {
- this.eden.put(key, value);
- }
- }
- return value;
- }
-
- public void put(K key, V value) {
- if (this.eden.size() >= this.size) {
- this.longterm.putAll(this.eden);
- this.eden.clear();
- }
- this.eden.put(key, value);
- }
-
+ private final int size;
+ private final Map<K,V> eden;
+ private final Map<K,V> longterm;
+
+ public ConcurrentCache(int size) {
+ this.size = size;
+ this.eden = new ConcurrentHashMap<K,V>(size);
+ this.longterm = new WeakHashMap<K,V>(size);
+ }
+
+ public V get(K key) {
+ V value = this.eden.get(key);
+ if (value == null) {
+ synchronized (longterm) {
+ value = this.longterm.get(key);
+ }
+ if (value != null) {
+ this.eden.put(key, value);
+ }
+ }
+ return value;
+ }
+
+ public void put(K key, V value) {
+ if (this.eden.size() >= this.size) {
+ synchronized (longterm) {
+ this.longterm.putAll(this.eden);
+ }
+ this.eden.clear();
+ }
+ this.eden.put(key, value);
+ }
}
}
Modified: tomcat/tc6.0.x/trunk/java/org/apache/el/lang/ExpressionBuilder.java
URL:
http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/java/org/apache/el/lang/ExpressionBuilder.java?rev=1027187&r1=1027186&r2=1027187&view=diff
==============================================================================
--- tomcat/tc6.0.x/trunk/java/org/apache/el/lang/ExpressionBuilder.java
(original)
+++ tomcat/tc6.0.x/trunk/java/org/apache/el/lang/ExpressionBuilder.java Mon Oct
25 16:37:14 2010
@@ -19,6 +19,8 @@ package org.apache.el.lang;
import java.io.StringReader;
import java.lang.reflect.Method;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
import javax.el.ELContext;
import javax.el.ELException;
@@ -50,7 +52,27 @@ import org.apache.el.util.MessageFactory
*/
public final class ExpressionBuilder implements NodeVisitor {
- private static final ConcurrentCache<String, Node> cache = new
ConcurrentCache<String, Node>(5000);
+ private static final int CACHE_SIZE;
+ private static final String CACHE_SIZE_PROP =
+ "org.apache.el.ExpressionBuilder.CACHE_SIZE";
+
+ static {
+ if (System.getSecurityManager() == null) {
+ CACHE_SIZE = Integer.parseInt(
+ System.getProperty(CACHE_SIZE_PROP, "5000"));
+ } else {
+ CACHE_SIZE = AccessController.doPrivileged(
+ new PrivilegedAction<Integer>() {
+ public Integer run() {
+ return Integer.valueOf(
+ System.getProperty(CACHE_SIZE_PROP, "5000"));
+ }
+ }).intValue();
+ }
+ }
+
+ private static final ConcurrentCache<String, Node> cache =
+ new ConcurrentCache<String, Node>(CACHE_SIZE);
private FunctionMapper fnMapper;
Modified: tomcat/tc6.0.x/trunk/java/org/apache/el/util/ConcurrentCache.java
URL:
http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/java/org/apache/el/util/ConcurrentCache.java?rev=1027187&r1=1027186&r2=1027187&view=diff
==============================================================================
--- tomcat/tc6.0.x/trunk/java/org/apache/el/util/ConcurrentCache.java (original)
+++ tomcat/tc6.0.x/trunk/java/org/apache/el/util/ConcurrentCache.java Mon Oct
25 16:37:14 2010
@@ -37,7 +37,9 @@ public final class ConcurrentCache<K,V>
public V get(K k) {
V v = this.eden.get(k);
if (v == null) {
- v = this.longterm.get(k);
+ synchronized (longterm) {
+ v = this.longterm.get(k);
+ }
if (v != null) {
this.eden.put(k, v);
}
@@ -47,7 +49,9 @@ public final class ConcurrentCache<K,V>
public void put(K k, V v) {
if (this.eden.size() >= size) {
- this.longterm.putAll(this.eden);
+ synchronized (longterm) {
+ this.longterm.putAll(this.eden);
+ }
this.eden.clear();
}
this.eden.put(k, v);
Modified: tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml
URL:
http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml?rev=1027187&r1=1027186&r2=1027187&view=diff
==============================================================================
--- tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml (original)
+++ tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml Mon Oct 25 16:37:14 2010
@@ -179,6 +179,10 @@
Patch provided by Sylvain Laurent. (markt)
</fix>
<fix>
+ <bug>50078</bug>: Fix threading issues in EL caches and make cache
sizes
+ configurable. Threading patch provided by Takayoshi Kimura. (markt)
+ </fix>
+ <fix>
<bug>50105</bug>: When processing composite EL expressions use
<code>Enum.name()</code> rather than <code>Enum.toString()</code> as
required by the EL specification. (markt)
Modified: tomcat/tc6.0.x/trunk/webapps/docs/config/systemprops.xml
URL:
http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/webapps/docs/config/systemprops.xml?rev=1027187&r1=1027186&r2=1027187&view=diff
==============================================================================
--- tomcat/tc6.0.x/trunk/webapps/docs/config/systemprops.xml (original)
+++ tomcat/tc6.0.x/trunk/webapps/docs/config/systemprops.xml Mon Oct 25
16:37:14 2010
@@ -62,6 +62,18 @@
<code>true</code> will be used.</p>
</property>
+ <property name="org.apache.el.BeanELResolver.CACHE_SIZE">
+ <p>The number of javax.el.BeanELResolver.BeanProperties objects that will
+ be cached by the EL Parser. If not specified, the default of
+ <code>1000</code> will be used.</p>
+ </property>
+
+ <property name="org.apache.el.ExpressionBuilder.CACHE_SIZE">
+ <p>The number of parsed EL expressions that will be cached by the EL
+ Parser. If not specified, the default of <code>5000</code> will be used.
+ </p>
+ </property>
+
</properties>
</section>
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