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Posted to users@tomcat.apache.org by Ed Rouse <er...@milner.com> on 2015/05/20 19:30:08 UTC
Problrm with resources added using DirResourceSet
Server version: Apache Tomcat/8.0.14
Server built: Sep 24 2014 09:01:51
Server number: 8.0.14.0
OS Name: Linux
OS Version: 3.8.0-29-generic
Architecture: amd64
JVM Version: 1.7.0_55-b14
JVM Vendor: Oracle Corporation
I have implemented a custom WebappClassLoaderBase and StandardRoot, and it looks like it is working; but the resources added are not available to the web app. What follows is a bit long and I apologize for that, but didn't want to leave out potentially important information. Any ideas on what's wrong?
This is the code snippet:
wsRoot = IDWMPluginRegistry.getInstance().getWebRoot();
log.info("IDWMClassLoader init: " + wsRoot.getContext().getName());
Set<IDWMPlugin> plugins = IDWMPluginRegistry.getInstance().getPlugins();
for(IDWMPlugin plugin: plugins)
{
log.info("Loading plugin: " + plugin.getLoaderClassName());
try
{
if(wsRoot == null)
{
log.info("wsRoot not set.");
wsRoot = new StandardRoot();
}
if(wsRoot.getContext() == null)
{
throw new Exception("NO CONTEXT!!!!!!!");
}
File pFile = plugin.getRoot();
log.info("Adding plugin root " + pFile.getAbsolutePath() + " to the WebResourceRoot as a DirResourceSet.");
DirResourceSet drs = new DirResourceSet(wsRoot, "/", pFile.getAbsolutePath(), "/");
log.info("DirResourceSet base URL = " + drs.getBaseUrl().toString());
wsRoot.addPostResources(drs);
}
catch(Exception e)
{
log.log(Level.SEVERE, "Error setting up class path", e);
}
}
And here is the catalina.out log pertaining to this section of code.
17-May-2015 23:27:52.399 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /usr/local/apache-tomcat-8.0.14/webapps/ROOT
17-May-2015 23:27:53.243 INFO [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
17-May-2015 23:27:53.385 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /usr/local/apache-tomcat-8.0.14/webapps/ROOT has finished in 986 ms
17-May-2015 23:27:53.388 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /usr/local/apache-tomcat-8.0.14/webapps/idwm
17-May-2015 23:27:53.424 INFO [localhost-startStop-1] com.comsquared.idw.catalina.ext.IDWMFileDirContext.<init> Default Constructor.
17-May-2015 23:27:53.425 INFO [localhost-startStop-1] com.comsquared.idw.catalina.ext.IDWMFileDirContext.importPlugins System property idwm.plugins not set; using default plugin path /usr/us/idwm/plugins
17-May-2015 23:27:53.431 INFO [localhost-startStop-1] com.comsquared.idw.catalina.ext.IDWMFileDirContext.importFromDirectory Found plugin at /usr/us/idwm/plugins/idw-plugins-role_change_attribute_audit
17-May-2015 23:27:54.146 INFO [localhost-startStop-1] com.comsquared.idw.catalina.ext.IDWMClassLoader.<init> parent constructor.class java.net.URLClassLoader
17-May-2015 23:27:54.147 INFO [localhost-startStop-1] com.comsquared.idw.catalina.ext.IDWMClassLoader.init IDWMClassLoader init: /idwm
17-May-2015 23:27:54.148 INFO [localhost-startStop-1] com.comsquared.idw.catalina.ext.IDWMClassLoader.init Loading plugin: idwplugin.RoleChangeAttributeAudit.RoleChangeAttributeAuditPluginLoader
17-May-2015 23:27:54.148 INFO [localhost-startStop-1] com.comsquared.idw.catalina.ext.IDWMClassLoader.init Adding plugin root /usr/us/idwm/plugins/idw-plugins-role_change_attribute_audit to the WebResourceRoot as a DirResourceSet.
17-May-2015 23:27:54.148 INFO [localhost-startStop-1] com.comsquared.idw.catalina.ext.IDWMClassLoader.init DirResourceSet base URL = file:/usr/us/idwm/plugins/idw-plugins-role_change_attribute_audit/
17-May-2015 23:28:05.198 INFO [localhost-startStop-1] com.comsquared.idwm.DataSourceFactory.getObjectInstance Get JNDI datasource ImageDirectorWorkflowDS from app config
log4j:WARN No such property [maxBackupIndex] in org.apache.log4j.DailyRollingFileAppender.
17-May-2015 23:28:15.367 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /usr/local/apache-tomcat-8.0.14/webapps/idwm has finished in 21,978 ms
17-May-2015 23:28:15.371 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /usr/local/apache-tomcat-8.0.14/webapps/docs
17-May-2015 23:28:15.425 INFO [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
17-May-2015 23:28:15.452 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /usr/local/apache-tomcat-8.0.14/webapps/docs has finished in 82 ms
17-May-2015 23:28:15.453 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /usr/local/apache-tomcat-8.0.14/webapps/examples
17-May-2015 23:28:15.983 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /usr/local/apache-tomcat-8.0.14/webapps/examples has finished in 530 ms
17-May-2015 23:28:15.984 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /usr/local/apache-tomcat-8.0.14/webapps/host-manager
17-May-2015 23:28:16.046 INFO [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
17-May-2015 23:28:16.054 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /usr/local/apache-tomcat-8.0.14/webapps/host-manager has finished in 69 ms
17-May-2015 23:28:16.057 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /usr/local/apache-tomcat-8.0.14/webapps/manager
17-May-2015 23:28:16.121 INFO [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
17-May-2015 23:28:16.125 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /usr/local/apache-tomcat-8.0.14/webapps/manager has finished in 68 ms
17-May-2015 23:28:16.169 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["http-nio-8080"]
17-May-2015 23:28:16.179 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["ajp-nio-8009"]
17-May-2015 23:28:16.180 INFO [main] org.apache.catalina.startup.Catalina.start Server startup in 23891 ms
Re: Problrm with resources added using DirResourceSet
Posted by Konstantin Kolinko <kn...@gmail.com>.
2015-05-20 20:30 GMT+03:00 Ed Rouse <er...@milner.com>:
> Server version: Apache Tomcat/8.0.14
A bit old...
> Server built: Sep 24 2014 09:01:51
> Server number: 8.0.14.0
> OS Name: Linux
> OS Version: 3.8.0-29-generic
> Architecture: amd64
> JVM Version: 1.7.0_55-b14
> JVM Vendor: Oracle Corporation
>
> I have implemented a custom WebappClassLoaderBase and StandardRoot, and it looks like it is working; but the resources added are not available to the web app. What follows is a bit long and I apologize for that, but didn't want to leave out potentially important information. Any ideas on what's wrong?
At what point of Lifecycle is your code called?
Has StandardRoot.initInternal() already happened?
Has StandardRoot.startInternal() already happened?
> This is the code snippet:
>
> wsRoot = IDWMPluginRegistry.getInstance().getWebRoot();
> log.info("IDWMClassLoader init: " + wsRoot.getContext().getName());
> Set<IDWMPlugin> plugins = IDWMPluginRegistry.getInstance().getPlugins();
> for(IDWMPlugin plugin: plugins)
> {
> log.info("Loading plugin: " + plugin.getLoaderClassName());
> try
> {
> if(wsRoot == null)
> {
> log.info("wsRoot not set.");
> wsRoot = new StandardRoot();
The above code does not work. It will fail at "if(wsRoot.getContext()
== null)" check on the next line...
> }
> if(wsRoot.getContext() == null)
> {
> throw new Exception("NO CONTEXT!!!!!!!");
> }
> File pFile = plugin.getRoot();
> log.info("Adding plugin root " + pFile.getAbsolutePath() + " to the WebResourceRoot as a DirResourceSet.");
>
> DirResourceSet drs = new DirResourceSet(wsRoot, "/", pFile.getAbsolutePath(), "/");
> log.info("DirResourceSet base URL = " + drs.getBaseUrl().toString());
> wsRoot.addPostResources(drs);
> }
> catch(Exception e)
> {
> log.log(Level.SEVERE, "Error setting up class path", e);
> }
> }
>
> And here is the catalina.out log pertaining to this section of code.
> (...)
https://wiki.apache.org/tomcat/FAQ/Developing#Debugging
Best regards,
Konstantin Kolinko
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Re: Problrm with resources added using DirResourceSet
Posted by Mark Thomas <ma...@apache.org>.
On 20/05/2015 18:30, Ed Rouse wrote:
> Server version: Apache Tomcat/8.0.14
> Server built: Sep 24 2014 09:01:51
> Server number: 8.0.14.0
> OS Name: Linux
> OS Version: 3.8.0-29-generic
> Architecture: amd64
> JVM Version: 1.7.0_55-b14
> JVM Vendor: Oracle Corporation
>
> I have implemented a custom WebappClassLoaderBase and StandardRoot, and it looks like it is working; but the resources added are not available to the web app. What follows is a bit long and I apologize for that, but didn't want to leave out potentially important information. Any ideas on what's wrong?
Thanks for all the info.
I can't see anything obviously wrong in what you posted. I'd fire up a
debugger and step through the StandardRoot.getResource() call and check:
- You see the StandardRoot instance you expect to see
- The DirResourceSet is present
- Follow the code to see why the resource isn't looked up in your
DirResourceSet
HTH,
Mark
>
> This is the code snippet:
>
> wsRoot = IDWMPluginRegistry.getInstance().getWebRoot();
> log.info("IDWMClassLoader init: " + wsRoot.getContext().getName());
> Set<IDWMPlugin> plugins = IDWMPluginRegistry.getInstance().getPlugins();
> for(IDWMPlugin plugin: plugins)
> {
> log.info("Loading plugin: " + plugin.getLoaderClassName());
> try
> {
> if(wsRoot == null)
> {
> log.info("wsRoot not set.");
> wsRoot = new StandardRoot();
> }
> if(wsRoot.getContext() == null)
> {
> throw new Exception("NO CONTEXT!!!!!!!");
> }
> File pFile = plugin.getRoot();
> log.info("Adding plugin root " + pFile.getAbsolutePath() + " to the WebResourceRoot as a DirResourceSet.");
>
> DirResourceSet drs = new DirResourceSet(wsRoot, "/", pFile.getAbsolutePath(), "/");
> log.info("DirResourceSet base URL = " + drs.getBaseUrl().toString());
> wsRoot.addPostResources(drs);
> }
> catch(Exception e)
> {
> log.log(Level.SEVERE, "Error setting up class path", e);
> }
> }
>
> And here is the catalina.out log pertaining to this section of code.
>
> 17-May-2015 23:27:52.399 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /usr/local/apache-tomcat-8.0.14/webapps/ROOT
> 17-May-2015 23:27:53.243 INFO [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
> 17-May-2015 23:27:53.385 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /usr/local/apache-tomcat-8.0.14/webapps/ROOT has finished in 986 ms
> 17-May-2015 23:27:53.388 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /usr/local/apache-tomcat-8.0.14/webapps/idwm
> 17-May-2015 23:27:53.424 INFO [localhost-startStop-1] com.comsquared.idw.catalina.ext.IDWMFileDirContext.<init> Default Constructor.
> 17-May-2015 23:27:53.425 INFO [localhost-startStop-1] com.comsquared.idw.catalina.ext.IDWMFileDirContext.importPlugins System property idwm.plugins not set; using default plugin path /usr/us/idwm/plugins
> 17-May-2015 23:27:53.431 INFO [localhost-startStop-1] com.comsquared.idw.catalina.ext.IDWMFileDirContext.importFromDirectory Found plugin at /usr/us/idwm/plugins/idw-plugins-role_change_attribute_audit
> 17-May-2015 23:27:54.146 INFO [localhost-startStop-1] com.comsquared.idw.catalina.ext.IDWMClassLoader.<init> parent constructor.class java.net.URLClassLoader
> 17-May-2015 23:27:54.147 INFO [localhost-startStop-1] com.comsquared.idw.catalina.ext.IDWMClassLoader.init IDWMClassLoader init: /idwm
> 17-May-2015 23:27:54.148 INFO [localhost-startStop-1] com.comsquared.idw.catalina.ext.IDWMClassLoader.init Loading plugin: idwplugin.RoleChangeAttributeAudit.RoleChangeAttributeAuditPluginLoader
> 17-May-2015 23:27:54.148 INFO [localhost-startStop-1] com.comsquared.idw.catalina.ext.IDWMClassLoader.init Adding plugin root /usr/us/idwm/plugins/idw-plugins-role_change_attribute_audit to the WebResourceRoot as a DirResourceSet.
> 17-May-2015 23:27:54.148 INFO [localhost-startStop-1] com.comsquared.idw.catalina.ext.IDWMClassLoader.init DirResourceSet base URL = file:/usr/us/idwm/plugins/idw-plugins-role_change_attribute_audit/
> 17-May-2015 23:28:05.198 INFO [localhost-startStop-1] com.comsquared.idwm.DataSourceFactory.getObjectInstance Get JNDI datasource ImageDirectorWorkflowDS from app config
> log4j:WARN No such property [maxBackupIndex] in org.apache.log4j.DailyRollingFileAppender.
> 17-May-2015 23:28:15.367 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /usr/local/apache-tomcat-8.0.14/webapps/idwm has finished in 21,978 ms
> 17-May-2015 23:28:15.371 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /usr/local/apache-tomcat-8.0.14/webapps/docs
> 17-May-2015 23:28:15.425 INFO [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
> 17-May-2015 23:28:15.452 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /usr/local/apache-tomcat-8.0.14/webapps/docs has finished in 82 ms
> 17-May-2015 23:28:15.453 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /usr/local/apache-tomcat-8.0.14/webapps/examples
> 17-May-2015 23:28:15.983 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /usr/local/apache-tomcat-8.0.14/webapps/examples has finished in 530 ms
> 17-May-2015 23:28:15.984 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /usr/local/apache-tomcat-8.0.14/webapps/host-manager
> 17-May-2015 23:28:16.046 INFO [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
> 17-May-2015 23:28:16.054 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /usr/local/apache-tomcat-8.0.14/webapps/host-manager has finished in 69 ms
> 17-May-2015 23:28:16.057 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /usr/local/apache-tomcat-8.0.14/webapps/manager
> 17-May-2015 23:28:16.121 INFO [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
> 17-May-2015 23:28:16.125 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /usr/local/apache-tomcat-8.0.14/webapps/manager has finished in 68 ms
> 17-May-2015 23:28:16.169 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["http-nio-8080"]
> 17-May-2015 23:28:16.179 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["ajp-nio-8009"]
> 17-May-2015 23:28:16.180 INFO [main] org.apache.catalina.startup.Catalina.start Server startup in 23891 ms
>
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