Tomcat 7 - Retrieve the version of a webapp (versioned WAR) - version

I've been unable to find any easy way of figuring out the version string for a WAR file deployed with Tomcat 7 versioned naming (ie app##version.war). You can read about it here and what it enables here.
It'd be nice if there was a somewhat more supported approach other than the usual swiss army knife of reflection powered ribcage cracking:
final ServletContextEvent event ...
final ServletContext applicationContextFacade = event.getServletContext();
final Field applicationContextField = applicationContextFacade.getClass().getDeclaredField("context");
applicationContextField.setAccessible(true);
final Object applicationContext = applicationContextField.get(applicationContextFacade);
final Field standardContextField = applicationContext.getClass().getDeclaredField("context");
standardContextField.setAccessible(true);
final Object standardContext = standardContextField.get(applicationContext);
final Method webappVersion = standardContext.getClass().getMethod("getWebappVersion");
System.err.println("WAR version: " + webappVersion.invoke(standardContext));

I think the simplest solution is using the same version (SVN revision + padding as an example) in .war, web.xml and META-INF/MANIFEST.MF properties files, so you could retrieve the version of these files later in your APP or any standard tool that read version from a JAR/WAR
See MANIFEST.MF version-number

Another solution described here uses the path name on the server of the deployed WAR. You'd extract the version number from the string between the "##" and the "/"
runningVersion = StringUtils.substringBefore(
StringUtils.substringAfter(
servletConfig.getServletContext().getRealPath("/"),
"##"),
"/");

Starting from Tomcat versions 9.0.32, 8.5.52 and 7.0.101, the webapp version is exposed as a ServletContext attribute with the name org.apache.catalina.webappVersion.
Link to the closed enhancement request: https://bz.apache.org/bugzilla/show_bug.cgi?id=64189

The easiest way would be for Tomcat to make the version available via a ServletContext attribute (org.apache.catalina.core.StandardContext.webappVersion) or similar. The patch to do that would be trivial. I'd suggest opening an enhancement request in Tomcat's Bugzilla. If you include a patch then it should get applied fairly quickly.

Related

OWL API V5 read ontology from local file

in the current documentation example at the link:
https://github.com/owlcs/owlapi/blob/version5/contract/src/test/java/org/semanticweb/owlapi/examples/Examples.java
There is no example of how to load an ontology from a local file. There is only a way to load it from a string.
In the past when i used owl-api version 3
the following code worked perfectly:
OWLOntologyManager manager =OWLManager.createOWLOntologyManager();
File file = new File (path);
OWLOntology ont = manager.loadOntologyFromOntologyDocument(IRI.create(file));
however, in this version, the last line of the previous code:
manager.loadOntologyFromOntologyDocument(IRI.create(file));
returns this error:
Exception in thread "main" java.lang.NoSuchMethodError:
org.semanticweb.owlapi.util.SAXParsers.initParserWithOWLAPIStandards(Lorg/xml/sax/ext/DeclHandler;)Ljavax/xml/parsers/SAXParser;
at
org.semanticweb.owlapi.rdf.rdfxml.parser.RDFParser.parse(RDFParser.java:148)
at org.semanticweb.owlapi.rdf.rdfxml.parser.RDFXMLParser.parse(RDFXMLParser.java:62)
at uk.ac.manchester.cs.owl.owlapi.OWLOntologyFactoryImpl.loadOWLOntology(OWLOntologyFactoryImpl.java:173)
at uk.ac.manchester.cs.owl.owlapi.OWLOntologyManagerImpl.load(OWLOntologyManagerImpl.java:954)
at uk.ac.manchester.cs.owl.owlapi.OWLOntologyManagerImpl.loadOntology(OWLOntologyManagerImpl.java:918)
at uk.ac.manchester.cs.owl.owlapi.OWLOntologyManagerImpl.loadOntologyFromOntologyDocument(OWLOntologyManagerImpl.java:859)
at glass.main.ontology_Test_main2.readOntology(ontology_Test_main2.java:49)
at glass.main.ontology_Test_main2.main(ontology_Test_main2.java:38)
Kindly note the attachment, a small test java project, link:
dropbox.com/s/3787a3gsk2bwc26/test.tar.gz?dl=0
Kindly what am i doing wrong, i m sure that this code
Kindly would you please provide the correct way to do it, and add it to the tutorial example in the link https://github.com/owlcs/owlapi/blob/version5/contract/src/test/java/org/semanticweb/owlapi/examples/Examples.java
Thanks very much for your time.
Sincere regards
You are very near to the solution:
final OWLOntologyManager manager = OWLManager.createOWLOntologyManager();
final OWLOntology ontology = manager.loadOntologyFromOntologyDocument(new File("/home/galigator/myLocalDir/aura.owl"));
Just use new File instead of IRI.create
The reason of the problem was:
The previous versions that i was using:
I was using Hermit version 1.3.8.500 and OWL-API previous version 5.0.5 got modified it seems.
Solution: use the newer versions Hermit 1.3.8.510 and OWL-API 5.1.0.
I posted this answer in case someone else is using the previous version and got affected.
Sincere regards.

Display project version in ASP.NET Core 1.0.0 web application

None of what used to work in RC.x helps anymore.
I have tried these:
PlatformServices.Default.Application.ApplicationVersion;
typeof(Controller).GetTypeInfo().Assembly.GetCustomAttribute<AssemblyFileVersionAttribute>().Version;
Assembly.GetEntryAssembly().GetName().Version.ToString();
They all return 1.0.0.0 instead of 1.0.0-9 which should be after execution of the dotnet publish --version-suffix 9 having this in project.json: "version": "1.0.0-*"
Basically they give me "File version" from the attached picture instead of "Product version" which dotnet publish actually seems to change.
For version 1.x:
Assembly.GetEntryAssembly().GetCustomAttribute<AssemblyInformationalVersionAttribute>().InformationalVersion;
For version 2.0.0 this attribute contains something ugly:
2.0.0 built by: dlab-DDVSOWINAGE041 so use this one:
typeof(RuntimeEnvironment).GetTypeInfo().Assembly.GetCustomAttribute<AssemblyFileVersionAttribute>().Version;
I would do it like this on ASP.NET Core 2.0+
var assemblyVersion = typeof(Startup).Assembly.GetName().Version.ToString();
In .Net Core 3.1 I show the version directly in my View using:
#GetType().Assembly.GetName().Version.ToString()
This shows the Assembly Version you have in your csproj file:
<PropertyGroup>
<TargetFramework>netcoreapp3.1</TargetFramework>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
<FileVersion>2.2.2.2</FileVersion>
<Version>4.0.0-NetCoreRC</Version>
</PropertyGroup>
If you want to display the "other" FileVersion or "Informational" Version properties in the View add using System.Reflection:
using System.Reflection;
.... bunch of html and stuff
<footer class="main-footer">
<div class="float-right hidden-xs">
<b>Assembly Version</b> #(Assembly.GetEntryAssembly().GetName().Version)
<b>File Version</b> #(Assembly.GetEntryAssembly().GetCustomAttribute<AssemblyFileVersionAttribute>().Version)
<b>Info Version</b> #(Assembly.GetEntryAssembly().GetCustomAttribute<AssemblyInformationalVersionAttribute>().InformationalVersion)
</div>
</footer>
Note that after adding the System.Reflection the original #GetType().Assembly.GetName().Version.ToString() line returns 0.0.0.0 and you need to use the #Assembly.GetEntryAssembly().GetName().Version
There's a blog post here
Edit: Make sure to follow proper naming conventions for the Version strings. In general, they need to lead with a number. If you don't, your app will build but when you try to use NuGet to add or restore packages you'll get an error like 'anythingGoesVersion' is not a valid version string. Or a more cryptic error: Missing required property 'Name'. Input files: C:\Users....csproj.'
more here:
This work for me too:
#Microsoft.Extensions.PlatformAbstractions.PlatformServices.Default.Application.ApplicationVersion
It works with csproj file - either <Version>1.2.3.4, or <VersionPrefix>1.2.3</VersionPrefix>. However the <VersionSuffix> isn't recoganized as this doc says.
The answer by Michael G should have been the accepted one since it works as expected. Just citing the answer by Michael G above.
var version = GetType().Assembly.GetName().Version.ToString();
works fine. It gets the Package version set in the Package tab of project properties.
As an addition, if we need to get the Description we set in the same tab, this code would work. (core 3.1)
string desc = GetType().Assembly.GetCustomAttribute<AssemblyDescriptionAttribute>().Description;
Just in case someone needs this.
Happy coding !!!

Apache CXF 2.7.11 on WebSphere 8.5

I have an application that exposes web services for clients via CXF. This side of things works perfectly.
The application also needs to act as a client itself and contact other servers, this is where I am running into problems.
With "Parent First" classloading I get this:
Caused by: javax.xml.ws.WebServiceException: Error: Maintain Session is enabled but none of the session properties (Cookies, Over-written URL) are returned.
at org.apache.axis2.jaxws.ExceptionFactory.createWebServiceException(ExceptionFactory.java:173) ~[org.apache.axis2.jar:na]
at org.apache.axis2.jaxws.ExceptionFactory.makeWebServiceException(ExceptionFactory.java:70) ~[org.apache.axis2.jar:na]
at org.apache.axis2.jaxws.ExceptionFactory.makeWebServiceException(ExceptionFactory.java:118) ~[org.apache.axis2.jar:na]
at org.apache.axis2.jaxws.BindingProvider.setupSessionContext(BindingProvider.java:355) ~[org.apache.axis2.jar:na]
at org.apache.axis2.jaxws.BindingProvider.checkMaintainSessionState(BindingProvider.java:322) ~[org.apache.axis2.jar:na]
at org.apache.axis2.jaxws.client.proxy.JAXWSProxyHandler.invokeSEIMethod(JAXWSProxyHandler.java:393) ~[org.apache.axis2.jar:na]
at ...
With "Parent last" classloading the application can't even expose its own services:
[23/06/15 15:33:12:985 BST] 000002d3 servlet E com.ibm.ws.webcontainer.servlet.ServletWrapper service Uncaught service() exception thrown by servlet cxf: java.lang.VerifyError: JVMVRFY013 class loading constraint violated; class=org/apache/cxf/jaxb/attachment/JAXBAttachmentUnmarshaller, method=getAttachmentAsDataHandler(Ljava/lang/String;)Ljavax/activation/DataHandler;, pc=0
at java.lang.J9VMInternals.verifyImpl(Native Method)
at java.lang.J9VMInternals.verify(J9VMInternals.java:85)
at java.lang.J9VMInternals.initialize(J9VMInternals.java:162)
I have tried disabling WebShere's own JAXWS Engine via the WAR's manifest.mf and no matter what I try with "Parent last" classloading I always get some error like the above. A different class depending on what JAR I have moved or replaced, but always a verify error.
I have also gone through the official Apache documentation, various IBM guides, countless blog and forum posts to no avail. I am at my wit's end with this
The same WAR runs perfectly on Tomcat, JBoss and WebLogic.
This is a complete list of all thirdparty JAR files:
activation-1.1.jar
antisamy-1.4.3.jar
aopalliance-1.0.jar
asm-3.3.1.jar
batik-css-1.7.jar
batik-ext-1.7.jar
batik-util-1.7.jar
bcprov-jdk15-1.46.jar
bsh-core-2.0b4.jar
commons-beanutils-1.7.0.jar
commons-beanutils-core-1.7.0.jar
commons-codec-1.3.jar
commons-collections-3.2.jar
commons-configuration-1.5.jar
commons-dbutils-1.6.jar
commons-digester-1.8.jar
commons-fileupload-1.3.1.jar
commons-httpclient-3.1.jar
commons-io-2.4.jar
commons-jexl-2.1.1.jar
commons-lang-2.4.jar
commons-logging-1.1.1.jar
cxf-api-2.7.11.jar
cxf-rt-bindings-soap-2.7.11.jar
cxf-rt-bindings-xml-2.7.11.jar
cxf-rt-core-2.7.11.jar
cxf-rt-databinding-jaxb-2.7.11.jar
cxf-rt-frontend-jaxws-2.7.11.jar
cxf-rt-frontend-simple-2.7.11.jar
cxf-rt-transports-http-2.7.11.jar
cxf-rt-ws-addr-2.7.11.jar
cxf-rt-ws-policy-2.7.11.jar
dom4j-1.6.1.jar
esapi-2.0.1.jar
FastInfoset-1.0.2.jar
geronimo-javamail_1.4_spec-1.7.1.ja
hamcrest-all-1.3.jar
hsqldb-1.8.0.10.jar
httpclient-4.3.6.jar
httpcore-4.3.3.jar
jaxen-1.1-beta-8.jar
jaxrpc-api-1.1.jar
jaxrpc-impl-1.1.3_01.jar
jaxrpc-spi-1.1.3_01.jar
joda-time-2.2.jar
js-1.7R2.jar
log4j-1.2.16.jar
logback-classic-0.9.21.jar
logback-core-0.9.21.jar
mail-1.4.7.jar
mailapi-1.4.3.jar
nekohtml-1.9.12.jar
not-yet-commons-ssl-0.3.9.jar
opensaml-2.6.1.jar
openws-1.5.1.jar
quartz-1.8.6.jar
saaj-api-1.3.5.jar
saaj-impl-1.3.jar
serializer-2.7.1.jar
slf4j-api-1.6.0.jar
slf4j-log4j12-1.6.0.jar
spring-aop-3.2.6.RELEASE.jar
spring-beans-3.2.6.RELEASE.jar
spring-context-3.2.6.RELEASE.jar
spring-core-3.2.6.RELEASE.jar
spring-expression-3.2.6.RELEASE.jar
spring-web-3.2.6.RELEASE.jar
stax2-api-3.1.4.jar
velocity-1.7.jar
vuelinkcore-20.2.3.jar
vueservlet-20.2.3.jar
woodstox-core-asl-4.2.1.jar
wsdl4j-1.6.3.jar
xml-apis-ext-1.3.04.jar
xml-resolver-1.2.jar
xmlsec-1.5.6.jar
xmltooling-1.4.1.jar
xom-1.1.jar
Does anyone know how to get Apache CXF 2.7.11 on WebSphere 8.5 to be able to act as a server and as a client?
We had the same problem using Was 8.5 (jdk 1.7_64), CXF, JAXB & xmlbeans:
JAXB is the default xml/java binding used by CXF. Was 8.5 uses endorsed JAXB api definition version 2.2.2 (in <WebSphere-dir>\AppServer\endorsed_apis\jaxb-api.jar) and standard implementation (in JRE rt.jar).
Xmlbeans 2.4.x holds inside org.w3c.* classes already present in Was (<WebSphere-dir>\AppServer\java_1.7_64\jre\lib\xml.jar).
In the end we solved so:
first following the instructions here:
http://www.ibm.com/developerworks/websphere/library/techarticles/1001_thaker/1001_thaker.html
then deleting from our deploy the following jar:
activation-*,
stax-api-* (but not stax2-api!),
jaxb-api-*,
jaxb-impl-*,
xercesImpl-*,
xml-apis-*
last deleting all org.w3c classes inside xmlbeas-2.x.jar
This is a complete list of all thirdparty JAR files we are successfully using:
cxf-*-2.7.11.jar
dom4j-1.6.1.jar
ehcache-2.8.2.jar
ehcache-core-2.5.1.jar
jettison-1.1.jar
neethi-3.0.3.jar
ognl-3.0.6.jar
opensaml-2.6.1.jar
openws-1.5.1.jar
spring-*-3.2.13.RELEASE.jar
stax2-api-3.1.1.jar
woodstox-core-asl-4.2.1.jar
wsdl4j-1.6.3.jar
wss4j-1.6.10.jar
xml-resolver-1.2.jar
xmlbeans-2.3.0-now3c.jar
xmlpull-1.1.3.1.jar
xmlschema-core-2.1.0.jar
xmlsec-1.5.4.jar
xmltooling-1.4.1.jar
xpp3_min-1.1.4c.jar
xstream-1.4.7.jar
We hope this is helpful.
PARENT_LAST:
Maybe you have a third party library in your deployment with the javax.activation.DataHandler class. Try to remove the activation-1.1.jar from your deployment.
This post can be usefull for you: LinkageError whilst trying to invoke CXF/SOAP webservice

FreeRadius dictionary loading

I'm trying to load a dictionary that comes in with Debian Squeeze. Unfortunately radius-client library fails on some included file with:
rc_read_dictionary: unknown Vendor-Id encrypt=1 on line 7 of dictionary /usr/share/freeradius/dictionary.compat
The line is
ATTRIBUTE Password 2 string encrypt=1
Freeradius is installed from the package, so I assume this should work just fine... What could be the problem here?
Late answer, but it still might help others, I got bit by a related issue.
You're getting that error because you're trying to use a dictionary file designed for the FreeRADIUS server. The client library "freeradius-client" is not 100% compatible with that format. Specifically, in your case, it cannot handle the encrypt=1 property of the attribute.
The reason for the complaint about an unknown Vendor-Id is another incompatibility between FreeRADIUS server and the freeradius-client library. FreeRADIUS server expects dictionary files with vendor specific attributes (VSAs) like the following:
VENDOR Cisco 9
BEGIN-VENDOR Cisco
ATTRIBUTE Cisco-AVPair 1 string
ATTRIBUTE Cisco-NAS-Port 2 string
...
END-VENDOR Cisco
The freeradius-client library however can only parse VSAs in the following form:
VENDOR Cisco 9
ATTRIBUTE Cisco-AVPair 1 string vendor=Cisco
ATTRIBUTE Cisco-NAS-Port 2 string vendor=Cisco
The above is true for FreeRADIUS server v2.1.x and freeradius-client v1.1.6.

Log to a database using log4j

Since in log4j javadoc is
WARNING: This version of JDBCAppender is very likely to be completely replaced in the future. Moreoever, it does not log exceptions.
What should I do to log to a database?
If you are looking for a database appender which not only works, but also supports connection pooling, is maintained and properly documented, than consider logback's DBAppender.
Ironically enough, the warning in the javadocs about removing JDBCAppender in future versions of log4j was written by me.
You can use an alternative appender, but really Log4j 1.2 is going to be around and standard for a long time. They developed DBAppender as part of their receivers companions, which isn't officially released, but you can download the source code and get your own going as well.
Unless the issue of not logging exceptions bothers you, JDBCAppender is just fine. Any further upgrade to 2.0 is going to be more radical than just changing JDBCAppender (if 2.0 happens), so I wouldn't worry about using it, despite the warning. They clearly don't have a solid roadmap or timeline to introducing a new version, and 1.2.15 was released in 2007.
**log4j.properties file**
# Define the root logger with appender file
log4j.rootLogger = DEBUG, DB
# Define the DB appender
log4j.appender.DB=org.apache.log4j.jdbc.JDBCAppender
# Set JDBC URL
log4j.appender.DB.URL=jdbc:mysql://localhost/log
# Set Database Driver
log4j.appender.DB.driver=com.mysql.jdbc.Driver
# Set database user name and password
log4j.appender.DB.user=root
log4j.appender.DB.password=root
# Set the SQL statement to be executed.
log4j.appender.DB.sql=INSERT INTO actionlg(user_id, dated, logger, level, message) values('%X{userId}',' %d{yyyy-MM-dd-HH-mm}','%C','%p','%m')
# Define the layout for file appender
log4j.appender.DB.layout=org.apache.log4j.PatternLayout
**Java Class**
Log4jExamples.java
import java.sql.*;
import java.io.*;
import org.apache.log4j.Logger;
import org.apache.log4j.MDC;
public class Log4jExample {
/* Get actual class name to be printed on */
static Logger log = Logger.getLogger(Log4jExample.class.getName());
public static void main(String[] args)throws IOException,SQLException{
log.error("Error");
MDC.put("userId", "1234");
}
}
**libs required**
- mysql-connector-java-3.1.8-bin.jar
- log4j-1.2.17.jar

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