Examples of org.glassfish.hk2.api.DynamicConfiguration

org.glassfish.hk2.api.DynamicConfiguration
This class is used to add {@link Descriptor}s to a {@link ServiceLocator}instance. No operation performed on this object will be reflected in the {@link ServiceLocator} until the commit method is called. @author jwells

        if (factories == null || locator == null) throw new IllegalArgumentException();
        
        List<FactoryDescriptors> retVal = new ArrayList<FactoryDescriptors>(factories.length);
        
        DynamicConfigurationService dcs = locator.getService(DynamicConfigurationService.class);
        DynamicConfiguration config = dcs.createDynamicConfiguration();
        
        for (FactoryDescriptors factory : factories) {
            FactoryDescriptors addMe = config.bind(factory, requiresDeepCopy);
            
            retVal.add(addMe);
        }
        
        config.commit();
        
        return retVal;
    }

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     * may return an empty list
     * @throws MultiException On a commit failure
     */
    public static List<ActiveDescriptor<?>> addClasses(ServiceLocator locator, Class<?>... toAdd) {
        DynamicConfigurationService dcs = locator.getService(DynamicConfigurationService.class);
        DynamicConfiguration config = dcs.createDynamicConfiguration();
        
        LinkedList<ActiveDescriptor<?>> retVal = new LinkedList<ActiveDescriptor<?>>();
        for (Class<?> addMe : toAdd) {
            ActiveDescriptor<?> ad = config.addActiveDescriptor(addMe);
            retVal.add(ad);
        }


        config.commit();


        return retVal;
    }

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     */
    public static void removeOneDescriptor(ServiceLocator locator, Descriptor descriptor, boolean includeAliasDescriptors) {
        if (locator == null || descriptor == null) throw new IllegalArgumentException();
        
        DynamicConfigurationService dcs = locator.getService(DynamicConfigurationService.class);
        DynamicConfiguration config = dcs.createDynamicConfiguration();
        
        if (descriptor.getLocatorId() != null && descriptor.getServiceId() != null) {
            Filter destructionFilter = BuilderHelper.createSpecificDescriptorFilter(descriptor);
            
            config.addUnbindFilter(destructionFilter);
            
            if (includeAliasDescriptors == true) {
                List<ActiveDescriptor<?>> goingToDie = locator.getDescriptors(destructionFilter);
                if (!goingToDie.isEmpty()) {
                    AliasFilter af = new AliasFilter(goingToDie);
                    
                    config.addUnbindFilter(af);
                }
            }
            
            config.commit();
            
            return;
        }
        
        // Must use second algorithm, which is not as precise, but which still mainly works
        final DescriptorImpl di;
        if (descriptor instanceof DescriptorImpl) {
            di = (DescriptorImpl) descriptor;
        }
        else {
            di = new DescriptorImpl(descriptor);
        }
        
        Filter destructionFilter = new Filter() {


            @Override
            public boolean matches(Descriptor d) {
                return di.equals(d);
            }
            
        };
        
        config.addUnbindFilter(destructionFilter);
        
        if (includeAliasDescriptors == true) {
            List<ActiveDescriptor<?>> goingToDie = locator.getDescriptors(destructionFilter);
            if (!goingToDie.isEmpty()) {
                AliasFilter af = new AliasFilter(goingToDie);
                
                config.addUnbindFilter(af);
            }
        }
        
        config.commit();
    }

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     */
    public static void removeFilter(ServiceLocator locator, Filter filter, boolean includeAliasDescriptors) {
        if (locator == null || filter == null) throw new IllegalArgumentException();
        
        DynamicConfigurationService dcs = locator.getService(DynamicConfigurationService.class);
        DynamicConfiguration config = dcs.createDynamicConfiguration();
        
        config.addUnbindFilter(filter);
        
        if (includeAliasDescriptors == true) {
            List<ActiveDescriptor<?>> goingToDie = locator.getDescriptors(filter);
            if (!goingToDie.isEmpty()) {
                AliasFilter af = new AliasFilter(goingToDie);
                
                config.addUnbindFilter(af);
            }
        }
        
        config.commit();
    }

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    public static void enablePerThreadScope(ServiceLocator locator) {
        Context<PerThread> perThreadContext = locator.getService((new TypeLiteral<Context<PerThread>>() {}).getType());
        if (perThreadContext != null) return;


        DynamicConfigurationService dcs = locator.getService(DynamicConfigurationService.class);
        DynamicConfiguration config = dcs.createDynamicConfiguration();
        final DescriptorImpl descriptor = BuilderHelper.link(PerThreadContext.class).
                to(Context.class).
                in(Singleton.class.getName()).
                build();


        ClassLoader loader = ServiceLocatorUtilities.class.getClassLoader();
        final ClassLoader binderClassLoader = loader == null ? ClassLoader.getSystemClassLoader() : loader;
        descriptor.setLoader(new HK2Loader() {
            @Override
            public Class<?> loadClass(String className) throws MultiException {
                try {
                    return binderClassLoader.loadClass(className);
                } catch (ClassNotFoundException e) {
                    throw new MultiException(e);
                }


            }
        });


        config.bind(descriptor, false);
        config.commit();
    }

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     * @param binders The non-null list of binders to be added to the locator
     * @throws MultiException if any error was encountered while binding services
     */
    public static void bind(ServiceLocator locator, Binder... binders) {
        DynamicConfigurationService dcs = locator.getService(DynamicConfigurationService.class);
        DynamicConfiguration config = dcs.createDynamicConfiguration();


        for (Binder binder : binders) {
            binder.bind(config);
        }


        config.commit();
    }

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     */
    @SuppressWarnings("unchecked")
    public static <T> ActiveDescriptor<T> addOneDescriptor(ServiceLocator locator, Descriptor descriptor,
            boolean requiresDeepCopy) {
        DynamicConfigurationService dcs = locator.getService(DynamicConfigurationService.class);
        DynamicConfiguration config = dcs.createDynamicConfiguration();


        ActiveDescriptor<T> retVal;
        if (descriptor instanceof ActiveDescriptor) {
            ActiveDescriptor<T> active = (ActiveDescriptor<T>) descriptor;


            if (active.isReified()) {
                retVal = config.addActiveDescriptor(active, requiresDeepCopy);
            }
            else {
                retVal = config.bind(descriptor, requiresDeepCopy);
            }


        }
        else {
            retVal = config.bind(descriptor, requiresDeepCopy);
        }


        config.commit();


        return retVal;
    }

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     * @param addMe The classes to add to the locator
     * @throws MultiException On a commit failure
     */
    public static List<ActiveDescriptor<?>> addClasses(ServiceLocator locator, Class<?>... toAdd) {
        DynamicConfigurationService dcs = locator.getService(DynamicConfigurationService.class);
        DynamicConfiguration config = dcs.createDynamicConfiguration();
        
        LinkedList<ActiveDescriptor<?>> retVal = new LinkedList<ActiveDescriptor<?>>();
        for (Class<?> addMe : toAdd) {
            ActiveDescriptor<?> ad = config.addActiveDescriptor(addMe);
            retVal.add(ad);
        }


        config.commit();


        return retVal;
    }

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     */
    public static void removeOneDescriptor(ServiceLocator locator, Descriptor descriptor) {
        if (locator == null || descriptor == null) throw new IllegalArgumentException();
        
        DynamicConfigurationService dcs = locator.getService(DynamicConfigurationService.class);
        DynamicConfiguration config = dcs.createDynamicConfiguration();
        
        if (descriptor.getLocatorId() != null && descriptor.getServiceId() != null) {
            Filter destructionFilter = BuilderHelper.createSpecificDescriptorFilter(descriptor);
            
            config.addUnbindFilter(destructionFilter);
            
            config.commit();
            
            return;
        }
        
        // Must use second algorithm, which is not as precise, but which still mainly works
        final DescriptorImpl di;
        if (descriptor instanceof DescriptorImpl) {
            di = (DescriptorImpl) descriptor;
        }
        else {
            di = new DescriptorImpl(descriptor);
        }
        
        Filter destructionFilter = new Filter() {


            @Override
            public boolean matches(Descriptor d) {
                return di.equals(d);
            }
            
        };
        
        config.addUnbindFilter(destructionFilter);
        
        config.commit();
    }

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     */
    public static void removeFilter(ServiceLocator locator, Filter filter) {
        if (locator == null || filter == null) throw new IllegalArgumentException();
        
        DynamicConfigurationService dcs = locator.getService(DynamicConfigurationService.class);
        DynamicConfiguration config = dcs.createDynamicConfiguration();
        
        config.addUnbindFilter(filter);
        
        config.commit();
    }

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