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test/org/apache/catalina/session/TestPersistentManager.java

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+/*
+ * 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.catalina.session;
+
+import java.util.concurrent.atomic.AtomicInteger;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpSessionEvent;
+import javax.servlet.http.HttpSessionListener;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import org.apache.catalina.Context;
+import org.apache.catalina.Host;
+import org.apache.catalina.Manager;
+import org.apache.catalina.Session;
+import org.apache.catalina.Store;
+import org.apache.catalina.connector.Request;
+import org.apache.catalina.connector.RequestFacade;
+import org.apache.tomcat.unittest.TesterContext;
+import org.apache.tomcat.unittest.TesterHost;
+import org.easymock.EasyMock;
+import org.easymock.IAnswer;
+
+public class TestPersistentManager {
+
+    @Test
+    public void testMinIdleSwap() throws Exception {
+        PersistentManager manager = new PersistentManager();
+        manager.setStore(new TesterStore());
+
+        Host host = new TesterHost();
+        Context context = new TesterContext();
+        context.setParent(host);
+
+        manager.setContext(context);
+
+        manager.setMaxActiveSessions(2);
+        manager.setMinIdleSwap(0);
+
+        manager.start();
+
+        // Create the maximum number of sessions
+        manager.createSession(null);
+        manager.createSession(null);
+
+        // Given the minIdleSwap settings, this should swap one out to get below
+        // the limit
+        manager.processPersistenceChecks();
+        Assert.assertEquals(1, manager.getActiveSessions());
+        Assert.assertEquals(2, manager.getActiveSessionsFull());
+
+        manager.createSession(null);
+        Assert.assertEquals(2, manager.getActiveSessions());
+        Assert.assertEquals(3, manager.getActiveSessionsFull());
+    }
+
+    @Test
+    public void testBug62175() throws Exception {
+        final PersistentManager manager = new PersistentManager();
+        final AtomicInteger sessionExpireCounter = new AtomicInteger();
+
+        Store mockStore = EasyMock.createNiceMock(Store.class);
+        EasyMock.expect(mockStore.load(EasyMock.anyString())).andAnswer(new IAnswer<Session>() {
+
+            @Override
+            public Session answer() throws Throwable {
+                return timedOutSession(manager, sessionExpireCounter);
+            }
+        }).anyTimes();
+
+        EasyMock.replay(mockStore);
+
+        manager.setStore(mockStore);
+
+        Host host = new TesterHost();
+
+        final RequestCachingSessionListener requestCachingSessionListener = new RequestCachingSessionListener();
+
+        final Context context = new TesterContext() {
+
+            @Override
+            public Object[] getApplicationLifecycleListeners() {
+                return new Object[] { requestCachingSessionListener };
+            }
+
+            @Override
+            public Manager getManager() {
+                return manager;
+            }
+        };
+        context.setParent(host);
+
+        Request req = new Request() {
+            @Override
+            public Context getContext() {
+                return context;
+            }
+        };
+        req.setRequestedSessionId("invalidSession");
+        HttpServletRequest request = new RequestFacade(req);
+        requestCachingSessionListener.request = request;
+
+        manager.setContext(context);
+
+        manager.start();
+
+        Assert.assertNull(request.getSession(false));
+        Assert.assertEquals(1, sessionExpireCounter.get());
+
+    }
+
+    private static class RequestCachingSessionListener implements HttpSessionListener {
+
+        private HttpServletRequest request;
+
+        @Override
+        public void sessionCreated(HttpSessionEvent se) {
+            // do nothing
+        }
+
+        @Override
+        public void sessionDestroyed(HttpSessionEvent se) {
+            request.getSession(false);
+        }
+    }
+
+    private StandardSession timedOutSession(final PersistentManager manager, final AtomicInteger counter) {
+        StandardSession timedOutSession = new StandardSession(manager) {
+            private static final long serialVersionUID = -5910605558747844210L;
+
+            @Override
+            public void expire() {
+                counter.incrementAndGet();
+                super.expire();
+            }
+        };
+        timedOutSession.isValid = true;
+        timedOutSession.expiring = false;
+        timedOutSession.maxInactiveInterval = 1;
+        timedOutSession.lastAccessedTime = 0;
+        timedOutSession.id = "invalidSession";
+        return timedOutSession;
+    }
+}
+