GWT 1.5 RC2 vient tout juste de sortir. C'est téléchargeable ici : http://code.google.com/p/google-web-toolkit/downloads/list
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Tag - GWT
jeudi 31 juillet 2008
How to speed up the GWT compiler ? (Part III)
Par Olivier le jeudi 31 juillet 2008, 23:08
English version
To speed up GWT compiler, the main idea is to reduce GWT permutations.
To manage the permutations, I build my own version of GWT 1.5 named GWT 1.5 r2030-olivier.
I am using 1.5 M1:
- svn co http://google-web-toolkit.googlecode.com/svn/trunk -r2030
- Edit I18N.gwt.xml to remove default locale and force "fr_FR" as "default" locale
Index: trunk/user/src/com/google/gwt/i18n/I18N.gwt.xml
===================================================================
--- trunk/user/src/com/google/gwt/i18n/I18N.gwt.xml (revision 2030)
+++ trunk/user/src/com/google/gwt/i18n/I18N.gwt.xml (working copy)
@@ -18,7 +18,7 @@
<!-- Browser-sensitive code should use the 'locale' client property. -->
<!-- 'default' is always defined. -->
- <define-property name="locale" values="default" />
+ <define-property name="locale" values="fr_FR" />
<property-provider name="locale">
<![CDATA[
- Edit UserAgent.gwt.xml and, in my case, remove unused some browsers : safari, opera, gecko (old firefox/mozilla)
Index: trunk/user/src/com/google/gwt/user/UserAgent.gwt.xml
===================================================================
--- trunk/user/src/com/google/gwt/user/UserAgent.gwt.xml (revision 2030)
+++ trunk/user/src/com/google/gwt/user/UserAgent.gwt.xml (working copy)
@@ -19,7 +19,7 @@
<module>
<!-- Browser-sensitive code should use the 'user.agent' property -->
- <define-property name="user.agent" values="ie6,gecko,gecko1_8,safari,opera"/>
+ <define-property name="user.agent" values="ie6,gecko1_8"/>
<property-provider name="user.agent"><![CDATA[
var ua = navigator.userAgent.toLowerCase();
@@ -27,11 +27,7 @@
return (parseInt(result[1]) * 1000) + parseInt(result[2]);
};
- if (ua.indexOf("opera") != -1) {
- return "opera";
- } else if (ua.indexOf("webkit") != -1) {
- return "safari";
- } else if (ua.indexOf("msie") != -1) {
+ if (ua.indexOf("msie") != -1) {
var result = /msie ([0-9]+)\.([0-9]+)/.exec(ua);
if (result && result.length == 3) {
if (makeVersion(result) >= 6000) {
@@ -44,7 +40,6 @@
if (makeVersion(result) >= 1008)
return "gecko1_8";
}
- return "gecko";
}
return "unknown";
]]></property-provider>
With my own build, GWT compiler speeds up my project compilation :
- 12mn with GWT 1.5 r2030
- 4mn with GWT 1.5 r2030-olivier
- 1m15s with GWT 1.5 r2030-olivier + no additional locale
- 1mn with GWT 1.5 r2030-olivier + no locale + gecko1_8
This is an amazing gain : 12mn to 1mn
French version
Coming soon.
How to speed up the GWT compiler ? (Part II)
Par Olivier le jeudi 31 juillet 2008, 23:03
English version
To speed up GWT compiler, the main idea is to reduce GWT permutations.
1. Force a browser
In your module.gwt.xml, force an user agent : gecko1_8 (Firefox 2).
<!-- User Agent -->
<set-property name="user.agent" value="gecko1_8" />
2. Use only one locale
By default, GWT use "default" locale and comment yours locales.
<!-- GWT locale
<extend-property name="locale" values="de_DE" />
<extend-property name="locale" values="en_UK" />
<extend-property name="locale" values="fr_FR" />
<extend-property name="locale" values="hr_HR" />
<extend-property name="locale" values="hu_HU" />
<extend-property name="locale" values="it_IT" />
<extend-property name="locale" values="pt_PT" />
<extend-property name="locale" values="pl_PL" />
<extend-property name="locale" values="nl_NL" />
-->
With this two points, GWT really speeds up but i can improve this.
How to speed up the GWT compiler ? (Part III).
French version
Coming soon.
How to speed up the GWT compiler ? (Part I)
Par Olivier le jeudi 31 juillet 2008, 23:01
English version
I am working on an international CRM project based on JDK 6, GWT 1.5, MyGWT/Ext GWT, tomcat 6, maven, hibernate, spring, Oracle, ...
This business application must worked with Firefox 2, IE 6/7 and 9 locales (the target is about 15 locales).
This a very large GWT application and it takes a long time to compile, about 12 mn "only" for GWT maven module : this is a long time in development mode.
GWT spends time to compute permutations : create javascript file per browser/locale. With this kind of application, GWT produces 50 permutations :
- 5 browsers : ie6, opera, gecko1_8, safari, gecko
- 10 locales : default, de_DE, en_UK, fr_FR, hr_HR, hu_HU, it_IT, nl_NL, pl_PL, pt_PT
This is my module.gwt.xml :
<module>
<!-- Inherit the core Web Toolkit stuff. -->
<inherits name="com.google.gwt.user.User" />
<inherits name="com.google.gwt.i18n.I18N" />
<!-- Add support -->
<inherits name="com.aaa.bbb.ccc.XXXCore" />
<!-- Add mygwt support -->
<inherits name="net.mygwt.ui.MyGWT" />
<!-- Add hibernate4gwt support -->
<inherits name="net.sf.hibernate4gwt.Hibernate4Gwt" />
<inherits name="net.sf.hibernate4gwt.SqlDates"/>
<!-- Add gwt-log support -->
<inherits name="com.allen_sauer.gwt.log.gwt-log" />
<!-- Add ftr-gwt-library-date -->
<inherits name='org.cobogw.gwt.user.User' />
<inherits name="eu.future.earth.gwt.FtrGwtLibrary" />
<!-- GWT locale -->
<extend-property name="locale" values="de_DE" />
<extend-property name="locale" values="en_UK" />
<extend-property name="locale" values="fr_FR" />
<extend-property name="locale" values="hr_HR" />
<extend-property name="locale" values="hu_HU" />
<extend-property name="locale" values="it_IT" />
<extend-property name="locale" values="pt_PT" />
<extend-property name="locale" values="pl_PL" />
<extend-property name="locale" values="nl_NL" />
<!-- Logging -->
<extend-property name="log_level" values="DEBUG,INFO,WARN,FATAL,EROR,OFF" />
<set-property name="log_level" value="INFO" />
<!-- Turn off "DivLogger" -->
<set-property name="log_DivLogger" value="DISABLED" />
<!-- Specify the app entry point class. -->
<entry-point class="com.aaa.bbb.ccc.XXXEntryPoint" />
</module>
The main idea is to reduce permutations.
How to speed up the GWT compiler ? (Part II).
How to speed up the GWT compiler ? (Part III).
French version
Coming soon.
mercredi 6 février 2008
Patch GWT 1.5 / Hibernate4GWT
Par Olivier le mercredi 6 février 2008, 22:26
Pour utiliser Hibernate4GWT et GWT 1.5, il faut patcher Hibernate4GWT la partie "emul" sinon vous pouvez avoir ce genre de message à la compilation
[java] [ERROR] Line 22: The interface Comparable cannot be implemented more than once with different arguments: Comparable and Comparable<Date> [java] [ERROR] Line 86: Name clash: The method compareTo(Object) of type Date has the same erasure as compareTo(T) of type Comparable<T> but does not override it
En fait, l'émulation JRE de Date et Timestamp ne compile plus avec un JDK 1.5. Voici les patches à passer sur Hibernate4GWT 1.3 :
Index: src/net/sf/hibernate4gwt/emul/java/sql/Timestamp.java
===================================================================
--- src/net/sf/hibernate4gwt/emul/java/sql/Timestamp.java (revision 133)
+++ src/net/sf/hibernate4gwt/emul/java/sql/Timestamp.java (working copy)
@@ -22,7 +22,7 @@
* Emulation of the java.sql.TimeStamp class
* Based on the source of java.util.Date emulation from GWT
*/
-public class Timestamp extends java.util.Date implements Cloneable, Comparable{
+public class Timestamp extends java.util.Date implements Cloneable {
/**
* Used only by toString().
*/
@@ -90,22 +90,6 @@
return clone;
}
- public int compareTo(Timestamp other) {
- long thisTime = getTime();
- long otherTime = other.getTime();
- if (thisTime < otherTime) {
- return -1;
- } else if (thisTime > otherTime) {
- return 1;
- } else {
- return getNanos() - other.getNanos();
- }
- }
-
- public int compareTo(Object other) {
- return compareTo((Timestamp) other);
- }
-
/**
* Return the names for the days of the week as specified by the Date
* specification.
@@ -269,4 +253,4 @@
this.jsdate = new Date(date);
this.nanos = 0;
}-*/;
-}
\ No newline at end of file
+}
Index: src/net/sf/hibernate4gwt/emul/java/sql/Date.java
===================================================================
--- src/net/sf/hibernate4gwt/emul/java/sql/Date.java (revision 133)
+++ src/net/sf/hibernate4gwt/emul/java/sql/Date.java (working copy)
@@ -19,7 +19,7 @@
* Emulation of the java.sql.Date
* Based on the source of java.util.Date emulation from GWT
*/
-public class Date extends java.util.Date implements Cloneable, Comparable {
+public class Date extends java.util.Date implements Cloneable {
/**
* Used only by toString().
*/
@@ -71,22 +71,6 @@
return new Date(getTime());
}
- public int compareTo(Date other) {
- long thisTime = getTime();
- long otherTime = other.getTime();
- if (thisTime < otherTime) {
- return -1;
- } else if (thisTime > otherTime) {
- return 1;
- } else {
- return 0;
- }
- }
-
- public int compareTo(Object other) {
- return compareTo((Date) other);
- }
-
/**
* Return the names for the days of the week as specified by the Date
* specification.
Index: build.xml
===================================================================
--- build.xml (revision 133)
+++ build.xml (working copy)
@@ -3,7 +3,7 @@
<!-- Properties -->
<property environment="env"/>
- <property name="version" value="1.0.3"/>
+ <property name="version" value="1.0.3-r133-patch"/>
<property name="project" value="hibernate4gwt" />
<property name="output.jar" value="${project}-${version}.jar" />
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