2 Replies Latest reply on Sep 9, 2008 4:24 PM by jump

How to deploy seam component manually ?

jump Sep 9, 2008 3:33 PM

I'd like to add seam components to my process archives. So I overrided Jbpm component with my own component capable to scan process archives.

if(annotation instanceof org.jboss.seam.annotations.Name) { log.info("seam annotated class found " + ctc.getName()); Class clazz = this.getClass().getClassLoader().loadClass(ctc.getName()); Context context = Contexts.getApplicationContext(); ComponentDescriptor descriptor = new ComponentDescriptor(clazz); String name = descriptor.getName(); String componentName = name + ".component"; try { log.info("Creating component " + name +" "+ descriptor.getScope() +" "+ descriptor.isStartup() +" "+ descriptor.getJndiName() +" isAutoCreate="+descriptor.isAutoCreate()); Component component = new Component( descriptor.getComponentClass(), name, descriptor.getScope(), descriptor.isStartup(), name//descriptor.getJndiName() ); log.info("adding component to context "+context); context.set(componentName, component); log.info("lookup "+context.get(componentName)); log.info(component.newInstance()); } catch (Throwable e) { throw new RuntimeException("Could not create Component: " + name, e); } }

So obtained components occurring in application context wrapped by Component. But when I try to instantiate them I get following exception

org.jboss.seam.InstantiationException: Could not instantiate Seam component: pro cessDataChangeFioV01 at org.jboss.seam.Component.newInstance(Component.java:1970) at org.jboss.seam.Component.getInstance(Component.java:1873) ................................... Caused by: javax.naming.NameNotFoundException: local not bound at org.jnp.server.NamingServer.getBinding(NamingServer.java:529) at org.jnp.server.NamingServer.getBinding(NamingServer.java:537) at org.jnp.server.NamingServer.getObject(NamingServer.java:543) at org.jnp.server.NamingServer.lookup(NamingServer.java:296) at org.jnp.server.NamingServer.lookup(NamingServer.java:270) at org.jnp.server.NamingServer.lookup(NamingServer.java:270) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:667) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:627) at javax.naming.InitialContext.lookup(InitialContext.java:392) at org.jboss.seam.Component.instantiateSessionBean(Component.java:1287) at org.jboss.seam.Component.instantiate(Component.java:1273) at org.jboss.seam.Component.newInstance(Component.java:1966) ... 141 more

1. Re: How to deploy seam component manually ?

jump Sep 9, 2008 4:23 PM (in response to jump)

private List<String> scanLibForPackagesWithJaxbAnnotations(File jarFile) { List<String> jaxbAnnotatedPackages = new ArrayList<String>(); try { JarFile jar = new JarFile(jarFile); Enumeration jarEntries = jar.entries(); while (jarEntries.hasMoreElements()) { JarEntry je = (JarEntry) jarEntries.nextElement(); if(je.getName().endsWith(".class")) { ClassPool cp = ClassPool.getDefault(); CtClass ctc = cp.makeClass(jar.getInputStream(je)); try { for(Object annotation : ctc.getAnnotations()) { if(annotation instanceof javax.xml.bind.annotation.XmlSchema) { log.info("jaxb annotated package found " + ctc.getPackageName()); jaxbAnnotatedPackages.add(ctc.getPackageName()); } if(annotation instanceof org.jboss.seam.annotations.Name) { log.info("seam annotated class found " + ctc.getName()); log.info("trying to use "+this.getClass().getClassLoader()); Class clazz = this.getClass().getClassLoader().loadClass(ctc.getName()); Context context = Contexts.getApplicationContext(); ComponentDescriptor descriptor = new ComponentDescriptor(clazz); String name = descriptor.getName(); String componentName = name + ".component"; try { log.info("Creating component " + name +" "+ descriptor.getScope() +" "+ descriptor.isStartup() +" "+ descriptor.getJndiName() +" isAutoCreate="+descriptor.isAutoCreate()); Component component = new Component( descriptor.getComponentClass(), name, descriptor.getScope(), descriptor.isStartup(), name//descriptor.getJndiName() ); log.info("adding component to context "+context); context.set(componentName, component); log.info("lookup "+context.get(componentName)); //log.info(org.jboss.seam.util.Naming.getInitialContext().lookup(name)); log.info(Seam.componentForName(name)); log.info(Component.getInstance(name)); //log.info(component.get) log.info(component.newInstance()); } catch (Throwable e) { throw new RuntimeException("Could not create Component: " + name, e); } //Thread.currentThread().getContextClassLoader().loadClass(ctc.getName()); } } } catch (ClassNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); e.getCause().printStackTrace(); } } } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } return jaxbAnnotatedPackages; }
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2. Re: How to deploy seam component manually ?

jump Sep 9, 2008 4:24 PM (in response to jump)

     private List<String> scanLibForPackagesWithJaxbAnnotations(File jarFile) {

          

          List<String> jaxbAnnotatedPackages = new ArrayList<String>();

          try {

               

               JarFile jar = new JarFile(jarFile);

               Enumeration jarEntries = jar.entries();

               

               while (jarEntries.hasMoreElements()) {

                    

                    JarEntry je = (JarEntry) jarEntries.nextElement();

                    if(je.getName().endsWith(".class")) {

                         

                         ClassPool cp = ClassPool.getDefault();

                         CtClass ctc = cp.makeClass(jar.getInputStream(je));

                         

                         

                         try {

                              

                              for(Object annotation : ctc.getAnnotations()) {

                                   

                                   if(annotation instanceof javax.xml.bind.annotation.XmlSchema) {

                                        log.info("jaxb annotated package found " + ctc.getPackageName());

                                        jaxbAnnotatedPackages.add(ctc.getPackageName());

                                   }

                                   if(annotation instanceof org.jboss.seam.annotations.Name) {

                                        log.info("seam annotated class found " + ctc.getName());

                                        log.info("trying to use "+this.getClass().getClassLoader());

                                        Class clazz = this.getClass().getClassLoader().loadClass(ctc.getName());

                                        

                                        Context context = Contexts.getApplicationContext();

                                        ComponentDescriptor descriptor = new ComponentDescriptor(clazz);

                                        

                                        String name = descriptor.getName();

                                        String componentName = name + ".component";

                                        try {

                                             log.info("Creating component "

                                                       + name

                                                       +" "+ descriptor.getScope()

                                                       +" "+ descriptor.isStartup()

                                                       +" "+ descriptor.getJndiName()

                                                       +" isAutoCreate="+descriptor.isAutoCreate());

                                             Component component = new Component(

                                                  descriptor.getComponentClass(), 

                                                  name, 

                                                  descriptor.getScope(), 

                                                  descriptor.isStartup(),

                                                  name//descriptor.getJndiName()

                                                  );

                                             

                                             log.info("adding component to context "+context);

                                             context.set(componentName, component);

                                             log.info("lookup "+context.get(componentName));

                                             //log.info(org.jboss.seam.util.Naming.getInitialContext().lookup(name));

                                             log.info(Seam.componentForName(name));

                                             log.info(Component.getInstance(name));

                                             //log.info(component.get)

                                             log.info(component.newInstance());

                                        }

                                        catch (Throwable e)

                                        {

                                             throw new RuntimeException("Could not create Component: " + name, e);

                                        }      



                                        

                                        //Thread.currentThread().getContextClassLoader().loadClass(ctc.getName());

                                   }

                                   

                              }

                         } catch (ClassNotFoundException e) {

                              // TODO Auto-generated catch block

                              e.printStackTrace();

                              e.getCause().printStackTrace();

                         }

                         

                    } 

                    

               }

               

          } catch (IOException e) {

               // TODO Auto-generated catch block

               e.printStackTrace();

          }

          return jaxbAnnotatedPackages;

     }

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