I am just getting started with Jetty (Jetty 6 w/ Java 6). Using the example files with Jetty 6, I place my xml configuration file. in the same directory as my java file. But when I run the project I get this error.
Exception in thread "main" java.lang.NullPointerException at net.test.FileServerXml.main(FileServerXml.java:13
Here is the example code:
`package net.test;
import org.mortbay.jetty.Server;
import org.mortbay.resource.Resource;
import org.mortbay.xml.XmlConfiguration;
public class FileServerXml
{
public static void main(String[] args) throws Exception
{
Resource fileserver_xml = Resource.newSystemResource("fileserver.xml");
XmlConfiguration configuration = new XmlConfiguration(fileserver_xml.getInputStream());
Server server = (Server)configuration.configure();
server.start();
server.join();
}
}
What is the proper way to structure the file system so that my xml file is found?
After doing some experimentation and heavy soul searching in the API for I changed:
Resource fileserver_xml = Resource.newSystemResource("fileserver.xml");
To this
Resource fileserver_xml = Resource.newResource("fileserver.xml");
Then placed the fileserver.xml outside of the "src" directory, which is the project root. Then it worked.
Related
I have maven project with embedded jetty server.
I have already created apis using JAX-RS, which are working properly. Now I want to create swagger documentation for my apis.
To start with swagger I have added servlet configuration as describe below :
#WebServlet(name = "SwaggerConfig")
public class SwaggerServlet extends HttpServlet {
#Override
public void init(ServletConfig config) throws ServletException {
super.init(config);
System.out.println("init SwaggerServlet");
BeanConfig beanConfig = new BeanConfig();
beanConfig.setVersion("1.0.0");
beanConfig.setSchemes(new String[]{"http"});
beanConfig.setHost("localhost:8082");
beanConfig.setBasePath("/api");
beanConfig.setResourcePackage("com.myCompany.myApisResourcePackage");
beanConfig.setScan(true);
}
}
Also, in main method,
along with my jersey configuration I have added following code :
//swagger
ServletHolder swaggerServletHolder = new ServletHolder(SwaggerServlet.class);
swaggerServletHolder.setInitOrder(1);
swaggerServletHolder.setInitParameter("swagger.api.basepath", "http://localhost:8082");
context.addServlet(swaggerServletHolder, "/api/*");
//swagger end
So, the problem is, I am not able to find where swagger.json will be created.
In this case, swagger scans packages as server log says it, but swagger.json still not getting created.
Note: I am currently not adding swagger-ui as I think it is not mandatory for creating swagger.json
I got swagger json by hitting url "localhost:8082/swagger.json". I used same configuration as posted in my question.
I am working with Java 8 application. I am trying to create a file. When I deploy the war in jboss 10 server and start it, file is not generated. At second run file is generated. Can someone please help me over this? My code for file generation is:
File workletProps = new File(configDir, DBConstants.OfflineWorkletExportProperties.WORKLET_EXPORT_CONFIG_WORKLET_PROPERTIES.getGettypeValue() +".properties");
PrintWriter pw = new PrintWriter(workletProps);
pw.println("WORKLET_ID=" + worklet.getId());
pw.println("PROJECT_ID=" + worklet.getProject().getId());
pw.flush();
pw.close();
Please refer to Eager / auto loading of EJB / load EJB on startup (on JBoss) on how to execute code on JBoss startup. JBoss 10 (Wildfly 10) supports Java EE 7 which includes EJB 3.2, which should empower you to do the following:
#Singleton
#Startup
public class StartupBean {
#PostConstruct
private void postConstruct() {
// your file generation code here, enriche with exception handling and logging
}
If that does not work as you expect, set a break point and debug.
}
I am new to Infinispan and JBOSS Cache, and am trying to learn these concepts using infinispan documentation. But was not successful in configuring custom xml configuration for cache. Can you please help me out ??
I have following Java Class (Infinispan jar files added to build path)
CustomCacheBean.java
package com.jboss.cache;
import java.io.IOException;
import org.infinispan.Cache;
import org.infinispan.configuration.cache.ConfigurationBuilder;
import org.infinispan.eviction.EvictionStrategy;
import org.infinispan.manager.DefaultCacheManager;
import org.infinispan.manager.EmbeddedCacheManager;
public class CustomCacheBean {
public static void main(String[] args) {
EmbeddedCacheManager manager =
new DefaultCacheManager();
manager.defineConfiguration("custom-cache",new ConfigurationBuilder().build());
Cache<Object, Object> c = manager.getCache("custom-cache");
try {
c = new DefaultCacheManager("infinispan.xml").getCache("xml-configured-cache");
} catch (IOException e) {
e.printStackTrace();
}
}
}
And following is my xml
infinispan.xml (placed under web_Content folder)
<infinispan xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="urn:infinispan:config:8.0.1 http://www.infinispan.org/schemas/infinispan-config-8.0.1.xsd"
xmlns="urn:infinispan:config:8.0.1">
<namedCache name="xml-configured-cache">
<eviction strategy="LIRS" maxEntries="10" />
</namedCache>
</infinispan>
When I try to execute CustomCacheBean java class, I am getting following error
Console :
log4j:WARN No appenders could be found for logger (infinispan.org.jboss.logging).
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" org.infinispan.commons.CacheConfigurationException: ISPN000327: Cannot find a parser for element 'infinispan' in namespace
'urn:infinispan:config:8.0.1'. Check that your configuration is up-to date for this version of Infinispan.
at org.infinispan.configuration.parsing.ParserRegistry.parseElement(ParserRegistry.java:147)
at org.infinispan.configuration.parsing.ParserRegistry.parse(ParserRegistry.java:131)
at org.infinispan.configuration.parsing.ParserRegistry.parse(ParserRegistry.java:118)
at org.infinispan.configuration.parsing.ParserRegistry.parse(ParserRegistry.java:105)
at org.infinispan.manager.DefaultCacheManager.<init>(DefaultCacheManager.java:271)
at org.infinispan.manager.DefaultCacheManager.<init>(DefaultCacheManager.java:244)
at org.infinispan.manager.DefaultCacheManager.<init>(DefaultCacheManager.java:231)
at com.jboss.cache.CustomCacheBean.main(CustomCacheBean.java:19)
I would recommend using Java based configuration instead of XML. You may take a look at tutorials:
Tutorials page
Distributed Cache (which is probably what you will need)
Please note there is a Github button at the bottom of the page (which will navigate you to the Github repository).
You're probably using wrong namespace in the XML config - namespaces don't use micro version, therefore, use:
xsi:schemaLocation="urn:infinispan:config:8.0 http://www.infinispan.org/schemas/infinispan-config-8.0.xsd" xmlns="urn:infinispan:config:8.0"
instead of
xsi:schemaLocation="urn:infinispan:config:8.0.1 http://www.infinispan.org/schemas/infinispan-config-8.0.1.xsd" xmlns="urn:infinispan:config:8.0.1"
Please, make sure that your IDE validates your configuration against the XSD; this can save you a lot of fuss (not only with Infinispan).
Where do I need to place jetty.xml, in case of embedded Jetty?
jetty-web is placed inside WEB-INF and it is loaded automatically. I tried to put there jetty.xml, but it failed to load (it does not see it). I am using mvn jetty:run to run the service.
Their WIKI example doesn't work? http://wiki.eclipse.org/Jetty/Tutorial/Embedding_Jetty
public class FileServerXml {
public static void main(String[] args) throws Exception {
Resource fileserver_xml = Resource.newSystemResource("fileserver.xml");
XmlConfiguration configuration = new XmlConfiguration(fileserver_xml.getInputStream());
Server server = (Server)configuration.configure();
server.start();
server.join();
}
}
It sounds like you need to restructure your jetty.xml in any event.
I've followed the instructions here to create a client to a remote SessionBean. I run the client on the same machine that Glassfish 3.1.2 beta is running on. When I use the gf-client.jar from the 3.1.2 beta Glassfish I get the following Exception which is the same Exception if I leave the gf-client.jar out of the classpath:
javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial
If I use a 3.1.1 gf-client.jar from a Maven repository I get a huge stack trace with complaints about it not being able to find some .jar files from Derby which I'm not even using. Apparently a version mismatch problem.
Has anyone gotten a standalone client to connect to Glassfish 3.1.2 beta? Did this change in JavaEE 6?
Here's the code:
#Stateless
public class LockTestDeadlockService implements LockTestDeadlockServiceI {
public int getP1Id() throws SQLException {
int parentId = -1;
return parentId;
}
}
#Remote
public interface LockTestDeadlockServiceI {
public int getP1Id() throws SQLException;
public void insertChildUpdateParent(int parentId) throws SQLException;
}
Here's my client:
public class LoadTestClient {
static Logger logger = Logger.getLogger(LoadTestClient.class);
public static void main(String[] args) {
String jndiName = "java:global/locktest-0.0.1-SNAPSHOT/LockTestDeadlockService";
try {
LockTestDeadlockServiceI lockTestService =
(LockTestDeadlockServiceI) new InitialContext().lookup(jndiName);
logger.info("Got lockTestService Remote Interface");
} catch (NamingException e) {
logger.info("Failed to get lockTestService Remote Interface: " + e);
}
}
}
The short answer is that to connect to GF 3.x from a client, you need a mini-glassfish install via the Application Client Container (ACC) using either webstart or the package-appclient script. Open up the gf-client.jar and look at its classpath in the manifest file. There are a ton of files listed in there. This was similar in GF 2.x, but it seemed to need less dependencies on the client (though it was 15MB with that version).
See these:
Create an "Application Client" with Maven in Java EE
With which maven dependencies can i create a standalone JMS client for Glassfish?
http://docs.oracle.com/cd/E18930_01/html/821-2418/beakt.html#scrolltoc
http://docs.oracle.com/cd/E18930_01/html/821-2418/beakv.html#beakz