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From GitBox <...@apache.org>
Subject [GitHub] justinedelson closed pull request #1: SLING-5668 - Leverage ServletRequestListener.requestDestroyed for cal?
Date Thu, 01 Jan 1970 00:00:00 GMT
justinedelson closed pull request #1: SLING-5668 - Leverage ServletRequestListener.requestDestroyed
for cal?
URL: https://github.com/apache/sling-org-apache-sling-models-impl/pull/1
 
 
   

This is a PR merged from a forked repository.
As GitHub hides the original diff on merge, it is displayed below for
the sake of provenance:

As this is a foreign pull request (from a fork), the diff is supplied
below (as it won't show otherwise due to GitHub magic):

diff --git a/.gitignore b/.gitignore
index 5b783ed..12746f7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,3 +15,4 @@ maven-eclipse.xml
 .DS_Store
 jcr.log
 atlassian-ide-plugin.xml
+dependency-reduced-pom.xml
diff --git a/pom.xml b/pom.xml
index 63270e0..97a29f2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -142,8 +142,8 @@
         </dependency>
         <dependency>
             <groupId>org.osgi</groupId>
-            <artifactId>org.osgi.compendium</artifactId>
-            <version>4.2.0</version>
+            <artifactId>osgi.cmpn</artifactId>
+            <version>6.0.0</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
@@ -154,7 +154,8 @@
         </dependency>
         <dependency>
             <groupId>org.osgi</groupId>
-            <artifactId>org.osgi.core</artifactId>
+            <artifactId>osgi.core</artifactId>
+            <version>6.0.0</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
@@ -188,7 +189,7 @@
         <dependency>
             <groupId>org.apache.sling</groupId>
             <artifactId>org.apache.sling.testing.osgi-mock</artifactId>
-            <version>1.5.0</version>
+            <version>2.3.2</version>
             <scope>test</scope>
         </dependency>
         <dependency>
diff --git a/src/main/java/org/apache/sling/models/impl/ModelAdapterFactory.java b/src/main/java/org/apache/sling/models/impl/ModelAdapterFactory.java
index 9f21435..1897a51 100644
--- a/src/main/java/org/apache/sling/models/impl/ModelAdapterFactory.java
+++ b/src/main/java/org/apache/sling/models/impl/ModelAdapterFactory.java
@@ -41,11 +41,16 @@
 import javax.annotation.CheckForNull;
 import javax.annotation.Nonnull;
 import javax.annotation.PostConstruct;
+import javax.servlet.ServletRequest;
+import javax.servlet.ServletRequestEvent;
+import javax.servlet.ServletRequestListener;
+import javax.servlet.ServletRequestWrapper;
 
 import org.apache.commons.lang3.StringUtils;
 import org.apache.felix.scr.annotations.Activate;
 import org.apache.felix.scr.annotations.Component;
 import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Properties;
 import org.apache.felix.scr.annotations.Property;
 import org.apache.felix.scr.annotations.Reference;
 import org.apache.felix.scr.annotations.ReferenceCardinality;
@@ -98,12 +103,17 @@
 import org.osgi.framework.Constants;
 import org.osgi.framework.ServiceRegistration;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.http.whiteboard.HttpWhiteboardConstants;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 @Component(metatype = true, immediate = true,
         label = "Apache Sling Model Adapter Factory")
-@Service(value = ModelFactory.class)
+@Service(value = { ModelFactory.class, ServletRequestListener.class })
+@Properties({
+    @Property(name = HttpWhiteboardConstants.HTTP_WHITEBOARD_LISTENER, value = "true"),
+    @Property(name = HttpWhiteboardConstants.HTTP_WHITEBOARD_CONTEXT_SELECT, value = "("
+ HttpWhiteboardConstants.HTTP_WHITEBOARD_CONTEXT_NAME + "=*)")
+})
 @References({
     @Reference(
         name = "injector",
@@ -117,7 +127,7 @@
             policy = ReferencePolicy.DYNAMIC)
 })
 @SuppressWarnings("deprecation")
-public class ModelAdapterFactory implements AdapterFactory, Runnable, ModelFactory {
+public class ModelAdapterFactory implements AdapterFactory, Runnable, ModelFactory, ServletRequestListener
{
 
     // hard code this value since we always know exactly how many there are
     private static final int VALUE_PREPARERS_COUNT = 2;
@@ -147,6 +157,8 @@ private void onDisposed() {
 
     private ConcurrentMap<java.lang.ref.Reference<Object>, DisposalCallbackRegistryImpl>
disposalCallbacks;
 
+    private ConcurrentHashMap<ServletRequest, DisposalCallbackRegistryImpl> requestDisposalCallbacks;
+
     @Override
     public void run() {
         clearDisposalCallbackRegistryQueue();
@@ -576,7 +588,11 @@ RuntimeException injectElement(final InjectableElement element, final
Object ada
         MapBackedInvocationHandler handler = new MapBackedInvocationHandler(methods);
 
         DisposalCallbackRegistryImpl registry = new DisposalCallbackRegistryImpl();
-        registerCallbackRegistry(handler, registry);
+        if (adaptable instanceof ServletRequest) {
+            registerRequestCallbackRegistry((ServletRequest) adaptable, registry);
+        } else {
+            registerCallbackRegistry(handler, registry);
+        }
 
         final Map<ValuePreparer, Object> preparedValues = new HashMap<>(VALUE_PREPARERS_COUNT);
 
@@ -599,6 +615,18 @@ private void registerCallbackRegistry(Object object, DisposalCallbackRegistryImp
         disposalCallbacks.put(reference, registry);
     }
 
+    private void registerRequestCallbackRegistry(ServletRequest request, DisposalCallbackRegistryImpl
registry) {
+        request = unwrapRequest(request);
+        requestDisposalCallbacks.put(request, registry);
+    }
+
+    private static ServletRequest unwrapRequest(ServletRequest request) {
+        while (request instanceof ServletRequestWrapper) {
+            request = ((ServletRequestWrapper) request).getRequest();
+        }
+        return request;
+    }
+
     private <ModelType> Result<ModelType> createObject(final Object adaptable,
final ModelClass<ModelType> modelClass)
             throws InstantiationException, InvocationTargetException, IllegalAccessException
{
         DisposalCallbackRegistryImpl registry = new DisposalCallbackRegistryImpl();
@@ -637,7 +665,11 @@ private void registerCallbackRegistry(Object object, DisposalCallbackRegistryImp
             }
         }
 
-        registerCallbackRegistry(object, registry);
+        if (adaptable instanceof SlingHttpServletRequest) {
+            registerRequestCallbackRegistry((SlingHttpServletRequest) adaptable, registry);
+        } else {
+            registerCallbackRegistry(object, registry);
+        }
 
         InjectCallback callback = new SetFieldCallback(object);
 
@@ -1025,32 +1057,40 @@ protected ThreadInvocationCounter initialValue() {
         BundleContext bundleContext = ctx.getBundleContext();
         this.queue = new ReferenceQueue<>();
         this.disposalCallbacks = new ConcurrentHashMap<>();
-        Hashtable<Object, Object> properties = new Hashtable<>();
+        this.requestDisposalCallbacks = new ConcurrentHashMap<>();
+        Hashtable<String, Object> properties = new Hashtable<>();
         properties.put(Constants.SERVICE_VENDOR, "Apache Software Foundation");
         properties.put(Constants.SERVICE_DESCRIPTION, "Sling Models OSGi Service Disposal
Job");
         properties.put("scheduler.name", "Sling Models OSGi Service Disposal Job");
         properties.put("scheduler.concurrent", false);
         properties.put("scheduler.period", PropertiesUtil.toLong(props.get(PROP_CLEANUP_JOB_PERIOD),
DEFAULT_CLEANUP_JOB_PERIOD));
 
-        this.jobRegistration = bundleContext.registerService(Runnable.class.getName(), this,
properties);
+        this.jobRegistration = bundleContext.registerService(Runnable.class, this, properties);
 
         this.scriptEngineFactory = new SlingModelsScriptEngineFactory(bundleContext.getBundle());
         this.listener = new ModelPackageBundleListener(ctx.getBundleContext(), this, this.adapterImplementations,
bindingsValuesProvidersByContext, scriptEngineFactory);
 
-        Hashtable<Object, Object> printerProps = new Hashtable<>();
+        Hashtable<String, Object> printerProps = new Hashtable<>();
         printerProps.put(Constants.SERVICE_VENDOR, "Apache Software Foundation");
         printerProps.put(Constants.SERVICE_DESCRIPTION, "Sling Models Configuration Printer");
         printerProps.put("felix.webconsole.label", "slingmodels");
         printerProps.put("felix.webconsole.title", "Sling Models");
         printerProps.put("felix.webconsole.configprinter.modes", "always");
 
-        this.configPrinterRegistration = bundleContext.registerService(Object.class.getName(),
+        this.configPrinterRegistration = bundleContext.registerService(Object.class,
                 new ModelConfigurationPrinter(this, bundleContext, adapterImplementations),
printerProps);
+
     }
 
     @Deactivate
     protected void deactivate() {
         this.adapterCache = null;
+        if (this.requestDisposalCallbacks != null) {
+            for (final DisposalCallbackRegistryImpl requestRegistries : this.requestDisposalCallbacks.values())
{
+                requestRegistries.onDisposed();
+            }
+        }
+        this.requestDisposalCallbacks = null;
         this.clearDisposalCallbackRegistryQueue();
         this.listener.unregisterAll();
         this.adapterImplementations.removeAll();
@@ -1256,4 +1296,16 @@ private Object handleBoundModelResult(Result<?> result) {
                 scriptEngineFactory, bindingsValuesProvidersByContext).adaptTo(targetClass);
     }
 
+    @Override
+    public void requestDestroyed(ServletRequestEvent sre) {
+        ServletRequest request = unwrapRequest(sre.getServletRequest());
+        DisposalCallbackRegistryImpl registry = requestDisposalCallbacks.remove(request);
+        if (registry != null) {
+            registry.onDisposed();
+        }
+    }
+
+    @Override
+    public void requestInitialized(ServletRequestEvent sre) {
+    }
 }
diff --git a/src/main/java/org/apache/sling/models/impl/ModelPackageBundleListener.java b/src/main/java/org/apache/sling/models/impl/ModelPackageBundleListener.java
index 28dcc16..0c285f5 100644
--- a/src/main/java/org/apache/sling/models/impl/ModelPackageBundleListener.java
+++ b/src/main/java/org/apache/sling/models/impl/ModelPackageBundleListener.java
@@ -49,7 +49,7 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-public class ModelPackageBundleListener implements BundleTrackerCustomizer {
+public class ModelPackageBundleListener implements BundleTrackerCustomizer<ServiceRegistration[]>
{
 
     static final String PACKAGE_HEADER = "Sling-Model-Packages";
     static final String CLASSES_HEADER = "Sling-Model-Classes";
@@ -96,12 +96,12 @@ public ModelPackageBundleListener(BundleContext bundleContext,
         this.adapterImplementations = adapterImplementations;
         this.bindingsValuesProvidersByContext = bindingsValuesProvidersByContext;
         this.scriptEngineFactory = scriptEngineFactory;
-        this.bundleTracker = new BundleTracker(bundleContext, Bundle.ACTIVE, this);
+        this.bundleTracker = new BundleTracker<>(bundleContext, Bundle.ACTIVE, this);
         this.bundleTracker.open();
     }
 
     @Override
-    public Object addingBundle(Bundle bundle, BundleEvent event) {
+    public ServiceRegistration[] addingBundle(Bundle bundle, BundleEvent event) {
         List<ServiceRegistration> regs = new ArrayList<>();
 
         Dictionary<?, ?> headers = bundle.getHeaders();
@@ -193,23 +193,21 @@ private void analyzeClass(Bundle bundle, String className, List<ServiceRegistrat
     }
 
     @Override
-    public void modifiedBundle(Bundle bundle, BundleEvent event, Object object) {
+    public void modifiedBundle(Bundle bundle, BundleEvent event, ServiceRegistration[] object)
{
     }
 
     @Override
-    public void removedBundle(Bundle bundle, BundleEvent event, Object object) {
-        if (object instanceof ServiceRegistration[]) {
-            for (ServiceRegistration reg : (ServiceRegistration[]) object) {
-                ServiceReference ref = reg.getReference();
-                String[] adapterTypeNames = PropertiesUtil.toStringArray(ref.getProperty(AdapterFactory.ADAPTER_CLASSES));
-                if (adapterTypeNames != null) {
-                    String implTypeName = PropertiesUtil.toString(ref.getProperty(PROP_IMPLEMENTATION_CLASS),
null);
-                    for (String adapterTypeName : adapterTypeNames) {
-                        adapterImplementations.remove(adapterTypeName, implTypeName);
-                    }
+    public void removedBundle(Bundle bundle, BundleEvent event, ServiceRegistration[] object)
{
+        for (ServiceRegistration reg : object) {
+            ServiceReference ref = reg.getReference();
+            String[] adapterTypeNames = PropertiesUtil.toStringArray(ref.getProperty(AdapterFactory.ADAPTER_CLASSES));
+            if (adapterTypeNames != null) {
+                String implTypeName = PropertiesUtil.toString(ref.getProperty(PROP_IMPLEMENTATION_CLASS),
null);
+                for (String adapterTypeName : adapterTypeNames) {
+                    adapterImplementations.remove(adapterTypeName, implTypeName);
                 }
-                reg.unregister();
             }
+            reg.unregister();
         }
         adapterImplementations.removeResourceTypeBindings(bundle);
 
diff --git a/src/test/java/org/apache/sling/models/impl/OSGiInjectionTest.java b/src/test/java/org/apache/sling/models/impl/OSGiInjectionTest.java
index 166545f..ec04a57 100644
--- a/src/test/java/org/apache/sling/models/impl/OSGiInjectionTest.java
+++ b/src/test/java/org/apache/sling/models/impl/OSGiInjectionTest.java
@@ -55,6 +55,8 @@
 import org.osgi.framework.ServiceReference;
 import org.osgi.service.component.ComponentContext;
 
+import javax.servlet.ServletRequestListener;
+
 @RunWith(MockitoJUnitRunner.class)
 public class OSGiInjectionTest {
     private ModelAdapterFactory factory;
@@ -216,9 +218,9 @@ public void testSetOSGiModelField() throws Exception {
         SetOSGiModel model = factory.getAdapter(res, SetOSGiModel.class);
         assertNull(model);
 
-        verify(bundleContext).registerService(eq(Runnable.class.getName()), eq(factory),
any(Dictionary.class));
+        verify(bundleContext).registerService(eq(Runnable.class), eq(factory), any(Dictionary.class));
         verify(bundleContext).addBundleListener(any(BundleListener.class));
-        verify(bundleContext).registerService(eq(Object.class.getName()), any(Object.class),
any(Dictionary.class));
+        verify(bundleContext).registerService(eq(Object.class), any(Object.class), any(Dictionary.class));
         verify(bundleContext).getBundles();
         verify(bundleContext).getBundle();
         verifyNoMoreInteractions(res, bundleContext);
diff --git a/src/test/java/org/apache/sling/models/impl/RequestDisposalTest.java b/src/test/java/org/apache/sling/models/impl/RequestDisposalTest.java
new file mode 100644
index 0000000..c163798
--- /dev/null
+++ b/src/test/java/org/apache/sling/models/impl/RequestDisposalTest.java
@@ -0,0 +1,136 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.sling.models.impl;
+
+import org.apache.sling.api.SlingHttpServletRequest;
+import org.apache.sling.api.resource.Resource;
+import org.apache.sling.api.wrappers.SlingHttpServletRequestWrapper;
+import org.apache.sling.models.annotations.Model;
+import org.apache.sling.models.spi.DisposalCallback;
+import org.apache.sling.models.spi.DisposalCallbackRegistry;
+import org.apache.sling.models.spi.Injector;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.runners.MockitoJUnitRunner;
+import org.osgi.framework.BundleContext;
+import org.osgi.service.component.ComponentContext;
+
+import javax.annotation.CheckForNull;
+import javax.annotation.Nonnull;
+import javax.inject.Inject;
+import javax.servlet.ServletContext;
+import javax.servlet.ServletRequestEvent;
+import java.lang.reflect.AnnotatedElement;
+import java.lang.reflect.Type;
+import java.util.Hashtable;
+
+import static org.mockito.Mockito.*;
+import static org.junit.Assert.*;
+
+@RunWith(MockitoJUnitRunner.class)
+public class RequestDisposalTest {
+    @Mock
+    private ComponentContext componentCtx;
+
+    @Mock
+    private BundleContext bundleContext;
+
+    @Mock
+    private Resource resource;
+
+    @Mock
+    private SlingHttpServletRequest request;
+
+    @Mock
+    private ServletContext servletContext;
+
+    private ModelAdapterFactory factory;
+
+    private TestDisposalCallback callback;
+
+    @Before
+    public void setup() {
+        when(componentCtx.getBundleContext()).thenReturn(bundleContext);
+        when(componentCtx.getProperties()).thenReturn(new Hashtable<String, Object>());
+
+        factory = new ModelAdapterFactory();
+        factory.activate(componentCtx);
+        factory.bindInjector(new DisposedInjector(), new ServicePropertiesMap(0, 0));
+        factory.adapterImplementations.addClassesAsAdapterAndImplementation(TestModel.class);
+
+        callback = new TestDisposalCallback();
+
+    }
+
+    @Test
+    public void test() {
+        // destroy a wrapper of the root request
+        SlingHttpServletRequest destroyedRequest = new SlingHttpServletRequestWrapper(request);
+
+        // but adapt from a wrapper of a wrapper of that wrapper
+        SlingHttpServletRequest adaptableRequest = new SlingHttpServletRequestWrapper(new
SlingHttpServletRequestWrapper(destroyedRequest));
+
+        TestModel model = factory.getAdapter(adaptableRequest, TestModel.class);
+        assertEquals("teststring", model.testString);
+
+        assertFalse(callback.isDisposed());
+
+        factory.requestDestroyed(new ServletRequestEvent(servletContext, destroyedRequest));
+
+        assertTrue(callback.isDisposed());
+    }
+
+    @Model(adaptables = SlingHttpServletRequest.class)
+    public static class TestModel {
+
+        @Inject
+        public String testString;
+
+    }
+
+    private class DisposedInjector implements Injector {
+        @Nonnull
+        @Override
+        public String getName() {
+            return "disposed";
+        }
+
+        @CheckForNull
+        @Override
+        public Object getValue(@Nonnull Object o, String s, @Nonnull Type type, @Nonnull
AnnotatedElement annotatedElement, @Nonnull DisposalCallbackRegistry disposalCallbackRegistry)
{
+            disposalCallbackRegistry.addDisposalCallback(callback);
+            return "teststring";
+        }
+    }
+
+    private class TestDisposalCallback implements DisposalCallback {
+        private boolean disposed = false;
+
+        @Override
+        public void onDisposed() {
+            disposed = true;
+        }
+
+        public boolean isDisposed() {
+            return disposed;
+        }
+    }
+
+
+}
diff --git a/src/test/java/org/apache/sling/models/testutil/ModelAdapterFactoryUtil.java b/src/test/java/org/apache/sling/models/testutil/ModelAdapterFactoryUtil.java
index cca5baa..bd3a133 100644
--- a/src/test/java/org/apache/sling/models/testutil/ModelAdapterFactoryUtil.java
+++ b/src/test/java/org/apache/sling/models/testutil/ModelAdapterFactoryUtil.java
@@ -18,13 +18,17 @@
  */
 package org.apache.sling.models.testutil;
 
+import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
 import java.net.MalformedURLException;
 import java.net.URL;
+import java.security.cert.X509Certificate;
 import java.util.Dictionary;
 import java.util.Enumeration;
 import java.util.Hashtable;
+import java.util.List;
+import java.util.Map;
 import java.util.Vector;
 
 import org.apache.sling.testing.mock.osgi.MockOsgi;
@@ -33,6 +37,7 @@
 import org.osgi.framework.BundleEvent;
 import org.osgi.framework.BundleException;
 import org.osgi.framework.ServiceReference;
+import org.osgi.framework.Version;
 
 /**
  * Helper methods for simulating sling models bundle events
@@ -47,7 +52,6 @@ private ModelAdapterFactoryUtil() {
     /**
      * Scan classpaths for given package name (and sub packages) to scan for and
      * register all classes with @Model annotation.
-     * @param packageName Java package name
      */
     public static void addModelsForPackage(BundleContext bundleContext, Class... classes)
{
         Bundle bundle = new ModelsPackageBundle(classes, Bundle.ACTIVE, bundleContext);
@@ -81,7 +85,7 @@ public Dictionary getHeaders() {
 
         @Override
         public Enumeration findEntries(String path, String filePattern, boolean recurse)
{
-            Vector<URL> urls = new Vector<URL>(); // NOPMD
+            Vector<URL> urls = new Vector<>(); // NOPMD
             for (int i = 0; i < classes.length; i++) {
                 try {
                     urls.add(new URL("file:/" + classes[i].getName().replace('.', '/') +
".class"));
@@ -198,6 +202,30 @@ public long getLastModified() {
             return 0;
         }
 
+        @Override
+        public File getDataFile(String filename) {
+            throw new UnsupportedOperationException();
+        }
+
+        @Override
+        public <A> A adapt(Class<A> type) {
+            throw new UnsupportedOperationException();
+        }
+
+        @Override
+        public Map<X509Certificate, List<X509Certificate>> getSignerCertificates(int
signersType) {
+            throw new UnsupportedOperationException();
+        }
+
+        @Override
+        public Version getVersion() {
+            throw new UnsupportedOperationException();
+        }
+
+        @Override
+        public int compareTo(Bundle o) {
+            throw new UnsupportedOperationException();
+        }
     }
 
 }


 

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