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* 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
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* Unless required by applicable law or agreed to in writing, software
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package org.apache.sling.scripting.core.impl;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import javax.servlet.ServletRequestEvent;
import org.apache.sling.api.resource.LoginException;
import org.apache.sling.api.resource.ResourceResolver;
import org.apache.sling.api.resource.ResourceResolverFactory;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.mockito.internal.util.reflection.Whitebox;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;
import static org.junit.Assert.assertEquals;
import static org.mockito.Mockito.*;
public class ScriptingResourceResolverProviderImplTest {
private static final int MAX_CONCURRENT_RESOLVERS = 200;
private static final int RESOLVER_REUSE_FOR_SAME_THREAD = 100;
private ScriptingResourceResolverProviderImpl scriptingResourceResolverFactory;
private Set<ResourceResolver> delegates;
@Before
public void setUp() throws LoginException {
delegates = Collections.synchronizedSet(new HashSet<ResourceResolver>());
ResourceResolverFactory rrf = mock(ResourceResolverFactory.class);
when(rrf.getServiceResourceResolver(null)).thenAnswer(new Answer<ResourceResolver>() {
@Override
public ResourceResolver answer(InvocationOnMock invocation) throws Throwable {
ResourceResolver delegate = getMockedRR();
delegates.add(delegate);
return delegate;
}
});
scriptingResourceResolverFactory = new ScriptingResourceResolverProviderImpl();
Whitebox.setInternalState(scriptingResourceResolverFactory, "rrf", rrf);
}
@After
public void tearDown() {
scriptingResourceResolverFactory = null;
delegates = null;
}
@Test
public void testGetRequestScopedResourceResolver() throws Exception {
ResourceResolver resourceResolver = scriptingResourceResolverFactory.getRequestScopedResourceResolver();
assertEquals("sling-scripting", resourceResolver.getUserID());
scriptingResourceResolverFactory.requestDestroyed(mock(ServletRequestEvent.class));
assertEquals(1, delegates.size());
for (ResourceResolver delegate : delegates) {
verify(delegate).close();
}
}
@Test
public void testGetRequestScopedResourceResolverWithThreads() throws Exception {
Collection<Callable<ResourceResolver>> callables = new ArrayList<>(MAX_CONCURRENT_RESOLVERS);
for (int i = 0; i < MAX_CONCURRENT_RESOLVERS; i++) {
callables.add(createCallable(scriptingResourceResolverFactory));
}
ExecutorService executor = Executors.newFixedThreadPool(MAX_CONCURRENT_RESOLVERS);
List<Future<ResourceResolver>> futures = executor.invokeAll(callables);
Set<ResourceResolver> resolvers = new HashSet<>();
for (Future<ResourceResolver> future : futures) {
resolvers.add(future.get());
}
assertEquals("The number of ScriptingResourceResolvers is not what we expected.", MAX_CONCURRENT_RESOLVERS, resolvers.size());
assertEquals("The number of delegate resource resolvers is not what we expected.", MAX_CONCURRENT_RESOLVERS, delegates.size());
for (ResourceResolver delegate : delegates) {
verify(delegate).close();
}
}
private Callable<ResourceResolver> createCallable(final ScriptingResourceResolverProviderImpl scriptingResourceResolverFactory) {
return new Callable<ResourceResolver>() {
@Override
public ResourceResolver call() {
ResourceResolver resourceResolver = scriptingResourceResolverFactory.getRequestScopedResourceResolver();
for (int i = 0; i < RESOLVER_REUSE_FOR_SAME_THREAD; i++) {
ResourceResolver subsequentResolver = scriptingResourceResolverFactory.getRequestScopedResourceResolver();
assertEquals("Expected that subsequent calls to ScriptingResourceResolverProvider#getRequestScopedResourceResolver() " +
"from the same thread will not create additional resolvers.", resourceResolver, subsequentResolver);
}
scriptingResourceResolverFactory.requestDestroyed(mock(ServletRequestEvent.class));
return resourceResolver;
}
};
}
private ResourceResolver getMockedRR() {
ResourceResolver resolver = mock(ResourceResolver.class);
when(resolver.getUserID()).thenReturn("sling-scripting");
return resolver;
}
}