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Posted to dev@tomcat.apache.org by ma...@apache.org on 2017/02/03 23:21:01 UTC

svn commit: r1781620 - in /tomcat/tc6.0.x/trunk: ./ java/org/apache/jasper/compiler/ java/org/apache/jasper/runtime/ webapps/docs/

Author: markt
Date: Fri Feb  3 23:21:00 2017
New Revision: 1781620

URL: http://svn.apache.org/viewvc?rev=1781620&view=rev
Log:
Refactor generated JSP code so tags require less code

Added:
    tomcat/tc6.0.x/trunk/java/org/apache/jasper/runtime/ExceptionUtils.java
      - copied unchanged from r1781601, tomcat/tc7.0.x/trunk/java/org/apache/jasper/runtime/ExceptionUtils.java
Modified:
    tomcat/tc6.0.x/trunk/   (props changed)
    tomcat/tc6.0.x/trunk/java/org/apache/jasper/compiler/Generator.java
    tomcat/tc6.0.x/trunk/java/org/apache/jasper/runtime/JspRuntimeLibrary.java
    tomcat/tc6.0.x/trunk/java/org/apache/jasper/runtime/TagHandlerPool.java
    tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml

Propchange: tomcat/tc6.0.x/trunk/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Fri Feb  3 23:21:00 2017
@@ -1,4 +1,4 @@
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 809,770876,772872,776921,776924,776935,776945,777464,777466,777576,777625,778379,778523-778524,781528,781779,782145,782791,783316,783696,783724,783756,783762,783766,783863,783934,784453,784602,784614,785381,785688,785768,785859,786468,786487,786490,786496,786667,787627,787770,787985,789389,790405,791041,791184,791194,791224,791243,791326,791328,791789,792740,793372,793757,793882,793981,794082,794673,794822,795043,795152,795210,795457,795466,797168,797425,797596,797607,802727,802940,804462,804544,804734,805153,809131,809603,810916,810977,812125,812137,812432,813001,813013,813866,814180,814708,814876,815972,816252,817442,817822,819339,819361,820110,820132,820874,820954,821397,828196,828201,828210,828225,828759,830378-830379,830999,831106,831774,831785,831828,831850,831860,832214,832218,833121,833545,834047,835036,835336,836405,881396,881412,883130,883134,883146,883165,883177,883362,883565,884341,885038,885231,885241,885260,885901,885991,886019,888072,889363,889606,889716,890139,890265
 ,890349-890350,890417,891185-891187,891583,892198,892341,892415,892464,892555,892812,892814,892817,892843,892887,893321,893493,894580,894586,894805,894831,895013,895045,895057,895191,895392,895703,896370,896384,897380-897381,897776,898126,898256,898468,898527,898555,898558,898718,898836,898906,899284,899348,899420,899653,899769-899770,899783,899788,899792,899916,899918-899919,899935,899949,903916,905020,905151,905722,905728,905735,907311,907513,907538,907652,907727,907819,907825,907864,908002,908721,908754,908759,909097,909206,909212,909525,909636,909869,909875,909887,910266,910370,910442,910471,910485,910974,915226,915737,915861,916097,916141,916157,916170,917598,917633,918093,918489,918594,918684,918787,918792,918799,918803,918885,919851,919914,920025,920055,920298,920449,920596,920824,920840,921444,922010,926716,927062,927621,928482,928695,928732,928798,931709,932357,932967,935105,935983,939491,939551,940064,941356,941463,943112,944409,944416,945231,945808,945835,945841,946686,94
 8057,950164,950596,950614,950851,950905,951615,953434,954435,955648,955655,956832,957130,957830,958192,960701,961948,962865,962872,962881,962900,963106,963865,963868,964614,966177-966178,966292,966692,966863,981815,988448,991837,993042,1001955,1002185,1002263,1002274,1002349,1002359,1002362,1002481,1002514,1003461,1003481,1003488,1003556,1003572,1003581,1003861,1004393,1004409,1004415,1004868-1004869,1004912,1005452,1005467,1005647,1005802,1022120,1022134,1022323,1022415,1022606,1022623,1024224,1024251,1026042,1026784,1026912,1026920,1029767,1033415,1033448,1033842,1033897,1037715,1037794,1037887,1037924,1038041,1041892,1042022,1042029,1042447,1042452,1042494,1043983,1044944,1044987,1049264,1050249,1055055,1055236,1055458,1055975,1056264,1056828,1056889,1059881,1060486,1061412,1061442,1061446,1061503,1062398,1064652,1066244,1066772,1067039,1067139,1069824,1070139,1070420,1070609,1072042,1073184,1073393,1075458,1076212,1078409,1078412,1079801,1081118,1081334,1088179,1088460,1090022,1
 094069,1094089,1095138,1097899,1099575,1099586,1099772,1099789,1100145,1100822,1101094,1101144,1124680,1130774,1133014,1137862,1137996,1138950,1138953,1139280,1140693,1141104,1141441,1142043,1142904,1143134,1143150,1145137,1148216,1148471,1152601,1156171,1156519,1164567,1167394,1172233-1172234,1172236,1173614,1174353,1174882,1174884,1175158,1175190,1176799,1177125,1177245,1177850,1177862,1178228,1178233,1178684,1181028,1181136,1184917,1184919,1185200,1185588,1186011,1186104,1186123,1186137,1186153,1186378,1186712,1186763,1186949,1187381,1189240,1189386,1190388-1190389,1190474,1198622,1201576,1203091,1224801,1233426,1243034,1243038,1244567,1298140,1298628-1298629,1304468,1311997,1331766,1333161,1333173,1342498,1342503,1348425,1348461-1348495,1348989,1350294,1351056,1351636-1351640,1352011,1354685,1354847,1354856,1356125,1359981,1371283,1409007,1413552,1413556,1413562,1417282,1430079,1430481,1430567,1435606,1435636,1435642,1438411,1439054,1441348,1446640,1446650,1447012,1453105,145311
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 9521,1663995,1664174,1665085,1666757,1666966,1666985,1668630,1669800,1676552,1681837-1681838,1681854,1685826,1687242,1689918,1693105,1694290,1694872,1696378,1701940,1710346,1712617,1712654,1713871,1713997,1714002,1715188,1715206,1716213-1716214,1716413,1716640,1716856,1716858,1716881-1716882,1716886,1716894,1720234,1720394,1720439,1720462,1721812,1721881,1722532,1722799,1722807,1722824,1722828-1722829,1722831,1722859,1723127,1723707,1723736,1724427,1724433,1724673,1724788,1724863,1725113,1725183,1725199,1725202,1725204,1725207,1725263-1725264,1725266,1725278,1725282,1725405,1725646,1725649-1725652,1725696-1725697,1725914,1725926,1726177,1726202,1726628,1726676,1726926,1727162,1727670,1727899,1728448,1729361,1731008,1731953,1731976,1732359,1733940,1734113,1734128,1734192,1737119,1737715,1737834,1737959,1738039,1738043,1739775,1741173,1741181,1741190,1741208,1741213,1741225,1741232,1742090,1742276,1743115,1743117,1743554,1744058,1744125,1744229,1744323,1744684,1745227,1745337,1746939,
 1748629,1750015,1750975,1751061,1754111,1754140-1754141,1754445,1754494,1754496,1754528,1754532-1754533,1754714,1756013,1756408,1756410,1756939,1757271,1757278,1757499,1758486-1758487,1760648,1761628,1761682,1761740,1762769,1762772,1763232,1763412,1763574,1763578,1765299,1765358,1765439,1767368,1767429,1767641-1767644,1770140,1772174,1772229,1773418,1774131,1774248,1774257,1774259,1774262,1774267,1774271,1774303,1774340,1775596,1776540,1777011,1777605,1777647,1779654,1780488,1780514-1780516

Modified: tomcat/tc6.0.x/trunk/java/org/apache/jasper/compiler/Generator.java
URL: http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/java/org/apache/jasper/compiler/Generator.java?rev=1781620&r1=1781619&r2=1781620&view=diff
==============================================================================
--- tomcat/tc6.0.x/trunk/java/org/apache/jasper/compiler/Generator.java (original)
+++ tomcat/tc6.0.x/trunk/java/org/apache/jasper/compiler/Generator.java Fri Feb  3 23:21:00 2017
@@ -2261,14 +2261,6 @@ class Generator {
             // includes setting the context
             generateSetters(n, tagHandlerVar, handlerInfo, false);
 
-            // JspIdConsumer (after context has been set)
-            if (n.implementsJspIdConsumer()) {
-                out.printin(tagHandlerVar);
-                out.print(".setJspId(\"");
-                out.print(createJspId());
-                out.println("\");");
-            }
-
             if (n.implementsTryCatchFinally()) {
                 out.printin("int[] ");
                 out.print(tagPushBodyCountVar);
@@ -2304,7 +2296,6 @@ class Generator {
                             .println(" != javax.servlet.jsp.tagext.Tag.EVAL_BODY_INCLUDE) {");
                     // Assume EVAL_BODY_BUFFERED
                     out.pushIndent();
-                    out.printil("out = _jspx_page_context.pushBody();");
                     if (n.implementsTryCatchFinally()) {
                         out.printin(tagPushBodyCountVar);
                         out.println("[0]++;");
@@ -2312,12 +2303,10 @@ class Generator {
                         out.printin(pushBodyCountVar);
                         out.println("[0]++;");
                     }
-                    out.printin(tagHandlerVar);
-                    out
-                            .println(".setBodyContent((javax.servlet.jsp.tagext.BodyContent) out);");
-                    out.printin(tagHandlerVar);
-                    out.println(".doInitBody();");
-
+                    out.printin("out = org.apache.jasper.runtime.JspRuntimeLibrary.startBufferedBody(");
+                    out.print("_jspx_page_context, ");
+                    out.print(tagHandlerVar);
+                    out.println(");");
                     out.popIndent();
                     out.printil("}");
 
@@ -2440,25 +2429,20 @@ class Generator {
             }
 
             // Ensure clean-up takes place
+            // Use JspRuntimeLibrary to minimise code in _jspService()
             out.popIndent();
             out.printil("} finally {");
             out.pushIndent();
-            if (isPoolingEnabled && !(n.implementsJspIdConsumer())) {
-                out.printin("if (!");
-                out.print(tagHandlerVar);
-                out.println("_reused) {");
-                out.pushIndent();
-            }
-            out.printin(tagHandlerVar);
-            out.println(".release();");
-            out.printin("org.apache.jasper.runtime.AnnotationHelper.preDestroy(");
+            out.printin("org.apache.jasper.runtime.JspRuntimeLibrary.releaseTag(");
+            out.print(tagHandlerVar);
+            out.print(", ");
             out.print(VAR_ANNOTATIONPROCESSOR);
             out.print(", ");
-            out.print(tagHandlerVar);
-            out.println(");");
             if (isPoolingEnabled && !(n.implementsJspIdConsumer())) {
-                out.popIndent();
-                out.printil("}");
+                out.print(tagHandlerVar);
+                out.println("_reused);");
+            } else {
+            	out.println("false);");
             }
             out.popIndent();
             out.printil("}");
@@ -2504,14 +2488,6 @@ class Generator {
 
             generateSetters(n, tagHandlerVar, handlerInfo, true);
 
-            // JspIdConsumer (after context has been set)
-            if (n.implementsJspIdConsumer()) {
-                out.printin(tagHandlerVar);
-                out.print(".setJspId(\"");
-                out.print(createJspId());
-                out.println("\");");
-            }
-
             // Set the body
             if (findJspBody(n) == null) {
                 /*
@@ -3113,6 +3089,14 @@ class Generator {
                     out.println(");");
                 }
             }
+            
+            // JspIdConsumer (after context has been set)
+            if (n.implementsJspIdConsumer()) {
+                out.printin(tagHandlerVar);
+                out.print(".setJspId(\"");
+                out.print(createJspId());
+                out.println("\");");
+            }
         }
 
         /*

Modified: tomcat/tc6.0.x/trunk/java/org/apache/jasper/runtime/JspRuntimeLibrary.java
URL: http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/java/org/apache/jasper/runtime/JspRuntimeLibrary.java?rev=1781620&r1=1781619&r2=1781620&view=diff
==============================================================================
--- tomcat/tc6.0.x/trunk/java/org/apache/jasper/runtime/JspRuntimeLibrary.java (original)
+++ tomcat/tc6.0.x/trunk/java/org/apache/jasper/runtime/JspRuntimeLibrary.java Fri Feb  3 23:21:00 2017
@@ -32,13 +32,19 @@ import javax.servlet.ServletException;
 import javax.servlet.ServletRequest;
 import javax.servlet.ServletResponse;
 import javax.servlet.http.HttpServletRequest;
+import javax.servlet.jsp.JspException;
 import javax.servlet.jsp.JspWriter;
 import javax.servlet.jsp.PageContext;
 import javax.servlet.jsp.tagext.BodyContent;
+import javax.servlet.jsp.tagext.BodyTag;
+import javax.servlet.jsp.tagext.Tag;
 
+import org.apache.AnnotationProcessor;
 import org.apache.jasper.Constants;
 import org.apache.jasper.JasperException;
 import org.apache.jasper.compiler.Localizer;
+import org.apache.juli.logging.Log;
+import org.apache.juli.logging.LogFactory;
 
 /**
  * Bunch of util methods that are used by code generated for useBean,
@@ -54,6 +60,8 @@ import org.apache.jasper.compiler.Locali
  */
 public class JspRuntimeLibrary {
 
+	private static final Log log = LogFactory.getLog(JspRuntimeLibrary.class);
+	
     private static final String SERVLET_EXCEPTION
         = "javax.servlet.error.exception";
     private static final String JSP_EXCEPTION
@@ -992,4 +1000,39 @@ public class JspRuntimeLibrary {
         return false;
     }
 
+
+    public static JspWriter startBufferedBody(PageContext pageContext, BodyTag tag)
+            throws JspException {
+        BodyContent out = pageContext.pushBody();
+        tag.setBodyContent(out);
+        tag.doInitBody();
+        return out;
+    }
+
+
+    public static void releaseTag(Tag tag, AnnotationProcessor annotationProcessor, boolean reused) {
+        // Caller ensures pool is non-null if reuse is true
+        if (!reused) {
+            releaseTag(tag, annotationProcessor);
+        }
+    }
+
+
+    protected static void releaseTag(Tag tag, AnnotationProcessor annotationProcessor) {
+        try {
+            tag.release();
+        } catch (Throwable t) {
+            ExceptionUtils.handleThrowable(t);
+            log.warn("Error processing release on tag instance of " +
+                 tag.getClass().getName(), t);
+        }
+        try {
+        	AnnotationHelper.preDestroy(annotationProcessor, tag);
+        } catch (Exception e) {
+            Throwable t = ExceptionUtils.unwrapInvocationTargetException(e);
+            ExceptionUtils.handleThrowable(t);
+            log.warn("Error processing preDestroy on tag instance of " +
+                 tag.getClass().getName(), t);
+        }
+    }
 }

Modified: tomcat/tc6.0.x/trunk/java/org/apache/jasper/runtime/TagHandlerPool.java
URL: http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/java/org/apache/jasper/runtime/TagHandlerPool.java?rev=1781620&r1=1781619&r2=1781620&view=diff
==============================================================================
--- tomcat/tc6.0.x/trunk/java/org/apache/jasper/runtime/TagHandlerPool.java (original)
+++ tomcat/tc6.0.x/trunk/java/org/apache/jasper/runtime/TagHandlerPool.java Fri Feb  3 23:21:00 2017
@@ -38,8 +38,6 @@ public class TagHandlerPool {
     public static final String OPTION_TAGPOOL="tagpoolClassName";
     public static final String OPTION_MAXSIZE="tagpoolMaxSize";
 
-    private static Log log = LogFactory.getLog(TagHandlerPool.class);
-
     // index of next available tag handler
     private int current;
     protected AnnotationProcessor annotationProcessor = null;
@@ -146,15 +144,7 @@ public class TagHandlerPool {
             }
         }
         // There is no need for other threads to wait for us to release
-        handler.release();
-        if (annotationProcessor != null) {
-            try {
-                AnnotationHelper.preDestroy(annotationProcessor, handler);
-            } catch (Exception e) {
-                log.warn("Error processing preDestroy on tag instance of " 
-                        + handler.getClass().getName(), e);
-            }
-        }
+        JspRuntimeLibrary.releaseTag(handler, annotationProcessor);
     }
 
     /**
@@ -163,15 +153,7 @@ public class TagHandlerPool {
      */
     public synchronized void release() {
         for (int i = current; i >= 0; i--) {
-            handlers[i].release();
-            if (annotationProcessor != null) {
-                try {
-                    AnnotationHelper.preDestroy(annotationProcessor, handlers[i]);
-                } catch (Exception e) {
-                    log.warn("Error processing preDestroy on tag instance of " 
-                            + handlers[i].getClass().getName(), e);
-                }
-            }
+        	JspRuntimeLibrary.releaseTag(handlers[i], annotationProcessor);
         }
     }
 

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=1781620&r1=1781619&r2=1781620&view=diff
==============================================================================
--- tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml (original)
+++ tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml Fri Feb  3 23:21:00 2017
@@ -94,6 +94,10 @@
       <fix>
         Revert use of try/finally for simple tags. (remm)
       </fix>
+      <fix>
+        Refactor code generated for JSPs to reduce the size of the code required
+        for tags. (markt)
+      </fix>
     </changelog>
   </subsection>
   <subsection name="Web applications">



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Re: svn commit: r1781620 - in /tomcat/tc6.0.x/trunk: ./ java/org/apache/jasper/compiler/ java/org/apache/jasper/runtime/ webapps/docs/

Posted by Rémy Maucherat <re...@apache.org>.
2017-02-04 0:40 GMT+01:00 Mark Thomas <ma...@apache.org>:

> On 03/02/17 23:21, markt@apache.org wrote:
>
>> Author: markt
>> Date: Fri Feb  3 23:21:00 2017
>> New Revision: 1781620
>>
>> URL: http://svn.apache.org/viewvc?rev=1781620&view=rev
>> Log:
>> Refactor generated JSP code so tags require less code
>>
>
> With this commit and the following configuration options, the TCK test
> that was failing due to the _jspService() method being to big now passes.
>
> - development - false
> - mappedfile - false
> - enablePooling - false
> - trimSpaces - true
>
> Awesome you found a way to improve it !

Rémy

Re: svn commit: r1781620 - in /tomcat/tc6.0.x/trunk: ./ java/org/apache/jasper/compiler/ java/org/apache/jasper/runtime/ webapps/docs/

Posted by Mark Thomas <ma...@apache.org>.
On 03/02/17 23:21, markt@apache.org wrote:
> Author: markt
> Date: Fri Feb  3 23:21:00 2017
> New Revision: 1781620
>
> URL: http://svn.apache.org/viewvc?rev=1781620&view=rev
> Log:
> Refactor generated JSP code so tags require less code

With this commit and the following configuration options, the TCK test 
that was failing due to the _jspService() method being to big now passes.

- development - false
- mappedfile - false
- enablePooling - false
- trimSpaces - true

Mark

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