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1. Re: How to find out WildFly version number from JVM agent?
You could use a management operation to determine the version. Something like:
static void listRunningVerssion() throws Exception { try (ModelControllerClient client = ModelControllerClient.Factory.create("localhost", 9990)) { final ModelNode op = Operations.createReadResourceOperation(new ModelNode().setEmptyList()); final ModelNode result = client.execute(op); if (Operations.isSuccessfulOutcome(result)) { final ModelNode model = Operations.readResult(result); final String productName; if (model.hasDefined("product-name")) { productName = model.get("product-name").asString(); } else { productName = "WildFly"; } String productVersion = null; if (model.hasDefined("product-version")) { productVersion = model.get("product-version").asString(); } String releaseCodename = null; if (model.hasDefined("release-codename")) { releaseCodename = model.get("release-codename").asString(); } String releaseVersion = null; if (model.hasDefined("release-version")) { releaseVersion = model.get("release-version").asString(); } System.out.printf("Product: %s%n", productName != null ? productName : "WildFly"); System.out.printf("Product Version: %s%n", productVersion); System.out.printf("Codename: %s%n", releaseCodename); System.out.printf("Release Version: %s%n", releaseVersion); } else { System.out.println(result); System.out.println(Operations.getFailureDescription(result)); } } }When running WildFly 10.0.0.CR2 I get the following results:
Product: WildFly Full Product Version: 10.0.0.CR2 Codename: Kenny Release Version: 2.0.0.CR5
The Release Version is the version for WildFly Core being used.
--
James R. Perkins
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2. Re: How to find out WildFly version number from JVM agent?
With Wildfly 10 you have the product-info command which will return some information about your running host:
Taking on James code :
static void listRunningVerssion() throws Exception { try (ModelControllerClient client = ModelControllerClient.Factory.create("localhost", 9990)) { final ModelNode op = Operations.createOperation("product-info",new ModelNode().setEmptyList()); final ModelNode result = client.execute(op); if (Operations.isSuccessfulOutcome(result)) { final ModelNode model = Operations.readResult(result).require("summary"); final String productName; if (model.hasDefined("product-name")) { productName = model.get("product-name").asString(); } else { productName = "WildFly"; } String productVersion = null; if (model.hasDefined("product-version")) { productVersion = model.get("product-version").asString(); } System.out.printf("Product: %s%n", productName != null ? productName : "WildFly"); System.out.printf("Product Version: %s%n", productVersion); } else { System.out.println(result); System.out.println(Operations.getFailureDescription(result)); } } }You can have more informations on the target server :
[standalone@localhost:9990 /] :product-info()
{
"outcome" => "success",
"result" => [{"summary" => {
"host-name" => "localhost",
"instance-identifier" => "8f704bd3-9eac-436a-b6d1-56434eab4363",
"product-name" => "WildFly Full",
"product-version" => "10.0.0.CR3-SNAPSHOT",
"product-community-identifier" => "Product",
"product-home" => "/home/ehsavoie/dev/wildfly/wildfly/dist/target/wildfly-10.0.0.CR3-SNAPSHOT",
"standalone-or-domain-identifier" => "STANDALONE_SERVER",
"host-operating-system" => "Ubuntu 15.04",
"host-cpu" => {
"host-cpu-arch" => "amd64",
"host-core-count" => 4
},
"jvm" => {
"name" => "Java HotSpot(TM) 64-Bit Server VM",
"java-version" => "1.8",
"jvm-version" => "1.8.0_60",
"jvm-vendor" => "Oracle Corporation",
"java-home" => "/usr/lib/jvm/java-8-oracle/jre"
}
}}]
}
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3. Re: How to find out WildFly version number from JVM agent?
Thanks James and Emmanuel a lot for your quick replies.
I forgot to mention that, if possible, I would like to avoid using any app server specific APIs because the agent must remain compatible with 5 other app servers and as such it cannot have any runtime dependencies on proprietary APIs (JBoss management APIs in this particular case). I could rewrite your code to use Java reflection to workaround the problem, but I am not sure if agent can access the management APIs as the management API does not seem to be on its classpath. This is the classpath of my agent on JBoss 9:
[code]
[2015-10-06 11:10:57,832] I [main] [com.quartzdesk.agent.Agent:435] - JVM Agent class class-loader:
sun.misc.Launcher$AppClassLoader@5e3a78ad
file:/D:/Java/wildfly-9.0.1.Final-lmc/jboss-modules.jar
file:/D:/Java/wildfly-9.0.1.Final-lmc/modules/system/layers/base/com/quartzdesk/agent/main/quartzdesk-agent.jar
sun.misc.Launcher$ExtClassLoader@50c8d62f
file:/D:/Java/Jdk1.7/jre/lib/ext/access-bridge-64.jar
file:/D:/Java/Jdk1.7/jre/lib/ext/dnsns.jar
file:/D:/Java/Jdk1.7/jre/lib/ext/jaccess.jar
file:/D:/Java/Jdk1.7/jre/lib/ext/localedata.jar
file:/D:/Java/Jdk1.7/jre/lib/ext/sunec.jar
file:/D:/Java/Jdk1.7/jre/lib/ext/sunjce_provider.jar
file:/D:/Java/Jdk1.7/jre/lib/ext/sunmscapi.jar
file:/D:/Java/Jdk1.7/jre/lib/ext/zipfs.jar
[/code]
I finally came up with a simple solution that obtains the app server version number from the WildFly org.jboss.as.version module's manifest.
[code]
private AppServerInfo prepareWildFlyInfo()
{
AppServerInfo appServerInfo = null;
String moduleDirStr = System.getenv( "JBOSS_MODULEPATH" );
if ( moduleDirStr != null )
{
// find wildfly-version
File moduleDir = new File( moduleDirStr );
if ( moduleDir.exists() )
{
Collection<File> versionJars = findMatchingFiles( moduleDir, new FilenameFilter()
{
@Override
public boolean accept( File dir, String name )
{
// looking for wildfly-version-x.y.z.Final.jar
return name.startsWith( "wildfly-version-" );
}
} );
if ( versionJars.size() == 1 )
{
try
{
JarFile jarFile = new JarFile( versionJars.iterator().next() );
Manifest manifest = jarFile.getManifest();
if ( manifest != null )
{
appServerInfo = prepareWildFlyInfo( manifest );
}
}
catch ( IOException e )
{
// should not happen
}
}
}
}
return appServerInfo;
}
private AppServerInfo prepareWildFlyInfo( Manifest manifest )
{
/*
* Implementation-Title: WildFly: Version
* JBossAS-Release-Version: 1.0.1.Final (for WildFly 9.0.1.Final)
* JBossAS-Release-Version: 2.0.0.CR1 (for WildFly 10.0.0.CR1)
*/
String implementationTitle = manifest.getMainAttributes().getValue( "Implementation-Title" );
if ( implementationTitle != null && "WildFly: Version".equals( implementationTitle ) )
{
String releaseVersion = manifest.getMainAttributes().getValue( "JBossAS-Release-Version" );
if ( releaseVersion != null )
{
return new AppServerInfo()
.withName( "WildFly" )
.withVersion( releaseVersion );
}
}
return null;
}
/**
* Recursively searches for matching files in the specified directory and all of its subdirectories.
*
* @param dir the directory where to start searching.
* @param filter a file name filter.
* @return the matching files.
*/
private Collection<File> findMatchingFiles( File dir, FilenameFilter filter )
{
Collection<File> result = new ArrayList<File>();
findMatchingFiles( dir, filter, result );
return result;
}
private void findMatchingFiles( File dir, FilenameFilter filter, Collection<File> result )
{
File[] files = dir.listFiles();
if ( files != null && files.length > 0 )
{
for ( File file : files )
{
if ( file.isDirectory() )
{
findMatchingFiles( file, filter, result );
}
else
{
if ( filter.accept( file.getParentFile(), file.getName() ) )
{
result.add( file );
}
}
}
}
}
[/code]
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4. Re: How to find out WildFly version number from JVM agent?
Most of this code is in the wildfly-version module: look into ProductConfig in widlfy-core/wildfly-version