Examples of javax.naming.RefAddr

javax.naming.RefAddr
This class represents the address of a communications end-point. It consists of a type that describes the communication mechanism and an address contents determined by an RefAddr subclass.
For example, an address type could be "BSD Printer Address", which specifies that it is an address to be used with the BSD printing protocol. Its contents could be the machine name identifying the location of the printer server that understands this protocol.
A RefAddr is contained within a Reference.
RefAddr is an abstract class. Concrete implementations of it determine its synchronization properties. @author Rosanna Lee @author Scott Seligman @see Reference @see LinkRef @see StringRefAddr @see BinaryRefAddr @since 1.3

            
            //Construct the desired AdministeredObject
            Object newobj = Class.forName(ref.getClassName()).newInstance();


            //version number MUST exist and it MUST be this version or a supported version
            RefAddr versionAddr = ref.get(REF_VERSION);


            //Support reading previous object versions here (2.0, 2.1 etc.). Floor is 2.0
            if (versionAddr == null || !(newobj instanceof com.sun.messaging.AdministeredObject)) {
                //if version number does not exist or it is not an AdministeredObject
                throw new MissingVersionNumberException();
            } else {
                version = (String)versionAddr.getContent();
                //Support reading previous object versions here (2.0, 2.1 etc.). Floor is 2.0
                if ( ! (AO_VERSION_STR.equals(version) ||
                        AO_VERSION_STR_JMQ3B.equals(version) ||
                        AO_VERSION_STR_JMQ2.equals(version)) ){
                    //Reference contains a bad version number
                    throw new UnsupportedVersionNumberException(version);
                }
                if (ref.size() < 2) {
                    //Reference is corrupted
                    throw new CorruptedConfigurationPropertiesException();
                }
                RefAddr readOnlyAddr = ref.get(REF_READONLY);
                if ("true".equals((String)readOnlyAddr.getContent())) {
                    //Reference has readOnly set
                    readOnly = true;
                }
                ((AdministeredObject)newobj).storedVersion = version;
            }


            RefAddr refaddr;                                                                               
            String refContent;
            //Skip the version # and r/o flag (start at 2)
            //System.out.println("AOtoString="+ newobj.toString());
            for (int i = 2; i < ref.size(); i++) {
                refaddr = ref.get(i);
                refContent = (String)refaddr.getContent();
                //System.out.println("gOI:ref#="+i+"; refCntnt="+refContent);
                //Guard against null values coming back from JNDI
                //Some service-providers will return `null'; others will return "" (empty string)
                if (refContent == null) {
                    refContent = "";
                }
                //If property fails to set then ignore since we may have looked up a newer object
                try {
                    //XXX RFE:tharakan
                    //Need to add support migrating 2.x properties to 3.x
                    //System.out.println("gOI:settingProp");
                    //System.out.println("gOI:propName="+refaddr.getType());
                    ((AdministeredObject)newobj).setProperty(refaddr.getType(), refContent);
                    //System.out.println("gOI:propName="+refaddr.getType()+" set successfully");
                } catch (Exception bpe) {
                    //Ignore exception
                    //System.out.println("gOI:propName="+refaddr.getType()+" exception; "+bpe.getMessage());
                    //bpe.printStackTrace();

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                } else {
                    throw new MissingVersionNumberException();
                }
            }
            //version number MUST exist and it MUST be the same as AO_VERSION_STR_JMQ1
            RefAddr versionAddr = ref.get(REF_VERSION);
            if (versionAddr == null) {
                //version number does not exist
                throw new MissingVersionNumberException();
            } else {
                String version = null;
                if (!AO_VERSION_STR_JMQ1.equals(version = (String)versionAddr.getContent())) {
                    //version number does not match
                    throw new UnsupportedVersionNumberException(version);
                }
                ((AdministeredObject)destObj).storedVersion = version;
            }
            RefAddr destAddr = ref.get(REF_DESTNAME);
            if (destAddr != null) {
                    destObj.setProperty(DestinationConfiguration.imqDestinationName,
                                            (String)destAddr.getContent());
                    return destObj;
            } else {
                    throw new CorruptedConfigurationPropertiesException();
            }
        }

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        String password = null;
        
        Enumeration refs = reference.getAll();
        while (refs.hasMoreElements())
        {
            RefAddr refAddr = (RefAddr)refs.nextElement();
            String name = refAddr.getType();           
            String value =  (String)refAddr.getContent();
            if (name.equalsIgnoreCase("user"))
                user = value;
            else if (name.equalsIgnoreCase("pwd"))
                password = value;
            else

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    }
    
    public void testResourceReference ()
    throws Exception
    {
        RefAddr refAddr = new StringRefAddr("val", "10");
        Reference ref = new Reference(SomeObject.class.getName(), refAddr, SomeObjectFactory.class.getName(), null);
        
        InitialContext icontext = new InitialContext();
        Resource resource = new Resource (null, "resourceByRef", ref);
        NamingEntry ne = NamingEntryUtil.lookupNamingEntry(null, "resourceByRef");

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         */
        public Object getObjectInstance(Object arg0, Name arg1, Context arg2, Hashtable arg3) throws Exception
        {
            Reference ref = (Reference)arg0;
            
            RefAddr refAddr = ref.get(0);
            String valueName = refAddr.getType();
            if (!valueName.equalsIgnoreCase("val"))
                throw new RuntimeException("Unrecognized refaddr type = "+valueName);
           
            String value = (String)refAddr.getContent();
            
            return new SomeObject(Integer.parseInt(value.trim()));
          
        }

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         * @return
         * @throws NamingException
         */
        public Reference getReference() throws NamingException
        {
            RefAddr refAddr = new StringRefAddr("val", String.valueOf(getValue()));
            Reference ref = new Reference(SomeOtherObject.class.getName(), refAddr, SomeOtherObjectFactory.class.getName(), null);
            return ref;
        }

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         */
        public Object getObjectInstance(Object arg0, Name arg1, Context arg2, Hashtable arg3) throws Exception
        {
          Reference ref = (Reference)arg0;
            
            RefAddr refAddr = ref.get(0);
            String valueName = refAddr.getType();
            if (!valueName.equalsIgnoreCase("val"))
                throw new RuntimeException("Unrecognized refaddr type = "+valueName);
           
            String value = (String)refAddr.getContent();
            
            return new SomeOtherObject(value.trim());
        }

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        } catch (ClassNotFoundException e) {
            throw new DeploymentException("Could not load resource-env-ref entry class " + type, e);
        }
        if (gerResourceEnvRef != null && gerResourceEnvRef.isSetReferenceClass()) {
            String clazz = gerResourceEnvRef.getReferenceClass();
            RefAddr addr = null;
            if (gerResourceEnvRef.isSetStringAddrType()) {
                String refAddrType = getStringValue(gerResourceEnvRef.getStringAddrType());
                String refAddr = getStringValue(gerResourceEnvRef.getStringAddr());
                addr = new StringRefAddr(refAddrType, refAddr);
            } else {

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        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ObjectOutputStream oas = new ObjectOutputStream(baos);
        oas.writeObject(dataSourceDescription);
        oas.flush();
        byte[] content = baos.toByteArray();
        RefAddr addr = new BinaryRefAddr(DataSourceDescription.class.getName(), content);
        return new Reference(DataSourceService.class.getName(), addr, DataSourceGBeanObjectFactory.class.getName(), null);
    }

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        if ((obj == null) || !(obj instanceof Reference))
            return null;
        Reference ref = (Reference) obj;
        if (!"javax.sql.DataSource".equals(ref.getClassName()))
            return null;
        RefAddr ra;
        ra = ref.get("rawDataSource");
        if (ra == null)
            throw new RuntimeException("mising rawDataSource name");
        String rawDS = ra.getContent().toString();
        ra = ref.get("threadsCount");
        if (ra == null)
            throw new RuntimeException("mising rawDataSource name");
        int tc = Integer.parseInt(ra.getContent().toString());
        return create(rawDS, tc);
    }

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