implemented small scheduler engine

pom.xml

@@ -435,6 +435,7 @@
 
     <!-- util libraries -->
     <guava.version>15.0</guava.version>
+    <quartz.version>2.2.3</quartz.version>
 
     <!-- build properties -->
     <project.build.javaLevel>1.6</project.build.javaLevel>

scm-core/src/main/java/sonia/scm/schedule/Scheduler.java

@@ -0,0 +1,65 @@
+/***
+ * Copyright (c) 2015, Sebastian Sdorra
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of SCM-Manager; nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * https://bitbucket.org/sdorra/scm-manager
+ * 
+ */
+
+package sonia.scm.schedule;
+
+import java.io.Closeable;
+
+/**
+ * Scheduler is able to run tasks on the future in a background thread. Task can be scheduled with cron like expression.
+ * <strong>Note:</strong> Task are always executed in an administrative context.
+ * @author Sebastian Sdorra
+ * @since 1.47
+ */
+public interface Scheduler extends Closeable {
+
+  /**
+   * Schedule a new task for future execution.
+   * 
+   * @param expression cron expression
+   * @param runnable action
+   * 
+   * @return cancelable task
+   */
+  public Task schedule(String expression, Runnable runnable);
+
+  /**
+   * Schedule a new task for future execution. The method will create a new instance of the runnable for every 
+   * execution. The runnable can use injection.
+   * 
+   * @param expression cron expression
+   * @param runnable action class
+   * 
+   * @return cancelable task
+   */  
+  public Task schedule(String expression, Class<? extends Runnable> runnable);
+  
+}

scm-core/src/main/java/sonia/scm/schedule/Task.java

@@ -0,0 +1,47 @@
+/***
+ * Copyright (c) 2015, Sebastian Sdorra
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of SCM-Manager; nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * https://bitbucket.org/sdorra/scm-manager
+ * 
+ */
+
+package sonia.scm.schedule;
+
+/**
+ * Tasks are executed in the future and can be running more than once. A task execution can be canceled.
+ * 
+ * @author Sebastian Sdorra
+ * @since 1.47
+ */
+public interface Task {
+
+  /**
+   * Cancel task execution.
+   */
+  public void cancel();
+  
+}

scm-webapp/pom.xml

@@ -190,6 +190,18 @@
       <version>${guava.version}</version>
     </dependency>
     
+    <dependency>
+      <groupId>org.quartz-scheduler</groupId>
+      <artifactId>quartz</artifactId>
+      <version>${quartz.version}</version>
+      <exclusions>
+        <exclusion>
+          <artifactId>c3p0</artifactId>
+          <groupId>c3p0</groupId>
+        </exclusion>
+      </exclusions>
+    </dependency>
+    
     <!-- fix version conflict -->
     
     <dependency>

scm-webapp/src/main/java/sonia/scm/ScmContextListener.java

@@ -60,6 +60,7 @@ import java.util.List;
 import javax.servlet.ServletContext;
 import javax.servlet.ServletContextEvent;
 import sonia.scm.repository.HealthCheckContextListener;
+import sonia.scm.schedule.Scheduler;
 
 /**
  *
@@ -79,6 +80,8 @@ public class ScmContextListener extends GuiceServletContextListener
   {
     if ((globalInjector != null) &&!startupError)
     {
+      // close Scheduler
+      IOUtil.close(globalInjector.getInstance(Scheduler.class));
 
       // close RepositoryManager
       IOUtil.close(globalInjector.getInstance(RepositoryManager.class));

scm-webapp/src/main/java/sonia/scm/ScmServletModule.java

@@ -164,6 +164,8 @@ import sonia.scm.net.ahc.ContentTransformer;
 import sonia.scm.net.ahc.DefaultAdvancedHttpClient;
 import sonia.scm.net.ahc.JsonContentTransformer;
 import sonia.scm.net.ahc.XmlContentTransformer;
+import sonia.scm.schedule.QuartzScheduler;
+import sonia.scm.schedule.Scheduler;
 import sonia.scm.security.XsrfProtectionFilter;
 import sonia.scm.web.UserAgentParser;
 
@@ -282,6 +284,9 @@ public class ScmServletModule extends ServletModule
     bind(PluginLoader.class).toInstance(pluginLoader);
     bind(PluginManager.class, DefaultPluginManager.class);
 
+    // bind scheduler
+    bind(Scheduler.class).to(QuartzScheduler.class);
+    
     // note CipherUtil uses an other generator
     bind(KeyGenerator.class).to(DefaultKeyGenerator.class);
     bind(CipherHandler.class).toInstance(cu.getCipherHandler());

scm-webapp/src/main/java/sonia/scm/schedule/InjectionEnabledJob.java

@@ -0,0 +1,90 @@
+/***
+ * Copyright (c) 2015, Sebastian Sdorra
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of SCM-Manager; nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * https://bitbucket.org/sdorra/scm-manager
+ * 
+ */
+
+package sonia.scm.schedule;
+
+import com.google.common.base.Preconditions;
+import com.google.inject.Injector;
+import com.google.inject.Provider;
+import org.quartz.Job;
+import org.quartz.JobDataMap;
+import org.quartz.JobDetail;
+import org.quartz.JobExecutionContext;
+import org.quartz.JobExecutionException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import sonia.scm.web.security.AdministrationContext;
+import sonia.scm.web.security.PrivilegedAction;
+
+/**
+ * InjectionEnabledJob allows the execution of quartz jobs and enable injection on them.
+ * 
+ * @author Sebastian Sdorra <sebastian.sdorra@triology.de>
+ * @since 1.47
+ */
+public class InjectionEnabledJob implements Job {
+
+    private static final Logger logger = LoggerFactory.getLogger(InjectionEnabledJob.class);
+  
+    @Override
+    public void execute(JobExecutionContext jec) throws JobExecutionException {
+        Preconditions.checkNotNull(jec, "execution context is null");
+      
+        JobDetail detail = jec.getJobDetail();
+        Preconditions.checkNotNull(detail, "job detail not provided");
+        
+        JobDataMap dataMap = detail.getJobDataMap();
+        Preconditions.checkNotNull(dataMap, "job detail does not contain data map");
+        
+        Injector injector = (Injector) dataMap.get(Injector.class.getName());
+        Preconditions.checkNotNull(injector, "data map does not contain injector");
+           
+        final Provider<Runnable> runnableProvider = (Provider<Runnable>) dataMap.get(Runnable.class.getName());
+        if (runnableProvider == null) {
+            throw new JobExecutionException("could not find runnable provider");
+        }
+
+        AdministrationContext ctx = injector.getInstance(AdministrationContext.class);
+        ctx.runAsAdmin(new PrivilegedAction()
+        {
+          @Override
+          public void run()
+          {
+            logger.trace("create runnable from provider");
+            Runnable runnable = runnableProvider.get();
+            logger.debug("execute injection enabled job {}", runnable.getClass());
+            runnable.run();
+          }
+        });
+    }
+
+
+}

scm-webapp/src/main/java/sonia/scm/schedule/QuartzScheduler.java

@@ -0,0 +1,175 @@
+/***
+ * Copyright (c) 2015, Sebastian Sdorra
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of SCM-Manager; nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * https://bitbucket.org/sdorra/scm-manager
+ * 
+ */
+
+package sonia.scm.schedule;
+
+import com.google.common.base.Throwables;
+import com.google.inject.Injector;
+import com.google.inject.Provider;
+import com.google.inject.Singleton;
+import java.io.IOException;
+import javax.inject.Inject;
+import org.quartz.CronScheduleBuilder;
+import org.quartz.JobBuilder;
+import org.quartz.JobDataMap;
+import org.quartz.JobDetail;
+import org.quartz.SchedulerException;
+import org.quartz.Trigger;
+import org.quartz.TriggerBuilder;
+import org.quartz.impl.StdSchedulerFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import sonia.scm.Initable;
+import sonia.scm.SCMContextProvider;
+
+/**
+ * {@link Scheduler} which uses the quartz scheduler.
+ * 
+ * @author Sebastian Sdorra
+ * @since 1.47
+ * 
+ * @see <a href="http://www.quartz-scheduler.org/">Quartz Job Scheduler</a>
+ */
+@Singleton
+public class QuartzScheduler implements Scheduler, Initable {
+  
+  private static final Logger logger = LoggerFactory.getLogger(QuartzScheduler.class);
+  
+  private final Injector injector;
+  private final org.quartz.Scheduler scheduler;
+
+  /**
+   * Creates a new quartz scheduler.
+   * 
+   * @param injector injector
+   */
+  @Inject
+  public QuartzScheduler(Injector injector)
+  {
+    this.injector = injector;
+    
+    // get default scheduler
+    try {
+        scheduler = StdSchedulerFactory.getDefaultScheduler();
+    } catch (SchedulerException ex) {
+        throw Throwables.propagate(ex);
+    }
+  }
+
+  /**
+   * Creates a new quartz scheduler. This constructor is only for testing.
+   * 
+   * @param injector injector
+   * @param scheduler quartz scheduler
+   */
+  QuartzScheduler(Injector injector, org.quartz.Scheduler scheduler)
+  {
+    this.injector = injector;
+    this.scheduler = scheduler;
+  }
+  
+  @Override
+  public void init(SCMContextProvider context)
+  {
+    try 
+    {
+      if (!scheduler.isStarted())
+      {
+        scheduler.start();
+      }
+    } 
+    catch (SchedulerException ex)
+    {
+      logger.error("can not start scheduler", ex);
+    }
+  }
+
+  @Override
+  public void close() throws IOException
+  {
+    try
+    {
+      if (scheduler.isStarted()){
+        scheduler.shutdown();
+      }
+    } 
+    catch (SchedulerException ex)
+    {
+      logger.error("can not stop scheduler", ex);
+    }
+  }
+  
+  @Override
+  public Task schedule(String expression, final Runnable runnable)
+  {
+    return schedule(expression, new Provider<Runnable>(){
+      @Override
+      public Runnable get()
+      {
+        return runnable;
+      }
+    });
+  }
+
+  @Override
+  public Task schedule(String expression, Class<? extends Runnable> runnable)
+  {
+    return schedule(expression, injector.getProvider(runnable));
+  }
+
+  private Task schedule(String expression, Provider<? extends Runnable> provider){
+    // create data map with injection provider for InjectionEnabledJob
+    JobDataMap map = new JobDataMap();
+    map.put(Runnable.class.getName(), provider);
+    map.put(Injector.class.getName(), injector);
+
+    // create job detail for InjectionEnabledJob with the provider for the annotated class
+    JobDetail detail = JobBuilder.newJob(InjectionEnabledJob.class)
+            .usingJobData(map)
+            .build();
+
+    // create a trigger with the cron expression from the annotation
+    Trigger trigger = TriggerBuilder.newTrigger()
+            .forJob(detail)
+            .withSchedule(CronScheduleBuilder.cronSchedule(expression))
+            .build();
+
+    try {
+        scheduler.scheduleJob(detail, trigger);
+    } catch (SchedulerException ex) {
+        throw Throwables.propagate(ex);
+    }
+    
+    return new QuartzTask(scheduler, trigger.getJobKey());
+  }
+
+
+}

scm-webapp/src/main/java/sonia/scm/schedule/QuartzTask.java

@@ -0,0 +1,68 @@
+/***
+ * Copyright (c) 2015, Sebastian Sdorra
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of SCM-Manager; nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * https://bitbucket.org/sdorra/scm-manager
+ * 
+ */
+
+package sonia.scm.schedule;
+
+import com.google.common.base.Throwables;
+import org.quartz.JobKey;
+import org.quartz.Scheduler;
+import org.quartz.SchedulerException;
+
+/**
+ * Task implementation for the {@link QuartzScheduler}.
+ * 
+ * @author Sebastian Sdorra
+ */
+public class QuartzTask implements Task {
+
+  private final org.quartz.Scheduler scheduler;
+  private final JobKey jobKey;
+
+  QuartzTask(Scheduler scheduler, JobKey jobKey)
+  {
+    this.scheduler = scheduler;
+    this.jobKey = jobKey;
+  }
+  
+  @Override
+  public void cancel()
+  {
+    try
+    {
+      scheduler.deleteJob(jobKey);
+    } 
+    catch (SchedulerException ex)
+    {
+      throw Throwables.propagate(ex);
+    }
+  }
+
+}

scm-webapp/src/test/java/sonia/scm/schedule/InjectionEnabledJobTest.java

@@ -0,0 +1,168 @@
+/***
+ * Copyright (c) 2015, Sebastian Sdorra
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of SCM-Manager; nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * https://bitbucket.org/sdorra/scm-manager
+ * 
+ */
+
+package sonia.scm.schedule;
+
+import com.google.inject.Injector;
+import com.google.inject.Provider;
+import org.junit.Test;
+import static org.mockito.Mockito.*;
+import org.junit.Rule;
+import org.junit.rules.ExpectedException;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.runners.MockitoJUnitRunner;
+import org.quartz.JobDataMap;
+import org.quartz.JobDetail;
+import org.quartz.JobExecutionContext;
+import org.quartz.JobExecutionException;
+import sonia.scm.web.security.AdministrationContext;
+import sonia.scm.web.security.PrivilegedAction;
+
+/**
+ * Unit tests for {@link InjectionEnabledJob}.
+ * 
+ * @author Sebastian Sdorra
+ */
+@RunWith(MockitoJUnitRunner.class)
+public class InjectionEnabledJobTest {
+
+  @Mock
+  private Injector injector;
+  
+  @Mock
+  private JobDataMap dataMap;
+  
+  @Mock
+  private JobDetail detail;
+  
+  @Mock
+  private JobExecutionContext jec;
+  
+  @Mock
+  private Provider<Runnable> runnable;
+  
+  @Mock
+  private AdministrationContext context;
+  
+  @Rule
+  public ExpectedException expected = ExpectedException.none();
+  
+  /**
+   * Tests {@link InjectionEnabledJob#execute(org.quartz.JobExecutionContext)} without context.
+   * 
+   * @throws JobExecutionException 
+   */
+  @Test
+  public void testExecuteWithoutContext() throws JobExecutionException
+  {
+    expected.expect(NullPointerException.class);
+    expected.expectMessage("execution context");
+    new InjectionEnabledJob().execute(null);
+  }
+  
+  /**
+   * Tests {@link InjectionEnabledJob#execute(org.quartz.JobExecutionContext)} without job detail.
+   * 
+   * @throws JobExecutionException 
+   */
+  @Test
+  public void testExecuteWithoutJobDetail() throws JobExecutionException
+  {
+    expected.expect(NullPointerException.class);
+    expected.expectMessage("detail");
+    new InjectionEnabledJob().execute(jec);
+  }
+  
+  /**
+   * Tests {@link InjectionEnabledJob#execute(org.quartz.JobExecutionContext)} without data map.
+   * 
+   * @throws JobExecutionException 
+   */
+  @Test
+  public void testExecuteWithoutDataMap() throws JobExecutionException
+  {
+    when(jec.getJobDetail()).thenReturn(detail);
+    expected.expect(NullPointerException.class);
+    expected.expectMessage("data map");
+    new InjectionEnabledJob().execute(jec);
+  }
+
+  /**
+   * Tests {@link InjectionEnabledJob#execute(org.quartz.JobExecutionContext)} without injector.
+   * 
+   * @throws JobExecutionException 
+   */
+  @Test
+  public void testExecuteWithoutInjector() throws JobExecutionException
+  {
+    when(jec.getJobDetail()).thenReturn(detail);
+    when(detail.getJobDataMap()).thenReturn(dataMap);
+    expected.expect(NullPointerException.class);
+    expected.expectMessage("injector");
+    new InjectionEnabledJob().execute(jec);
+  }
+  
+  /**
+   * Tests {@link InjectionEnabledJob#execute(org.quartz.JobExecutionContext)} without runnable.
+   * 
+   * @throws JobExecutionException 
+   */
+  @Test
+  public void testExecuteWithoutRunnable() throws JobExecutionException
+  {
+    when(jec.getJobDetail()).thenReturn(detail);
+    when(detail.getJobDataMap()).thenReturn(dataMap);
+    when(dataMap.get(Injector.class.getName())).thenReturn(injector);
+    expected.expect(JobExecutionException.class);
+    expected.expectMessage("runnable");
+    new InjectionEnabledJob().execute(jec);
+  }
+
+  /**
+   * Tests {@link InjectionEnabledJob#execute(org.quartz.JobExecutionContext)}.
+   * 
+   * @throws JobExecutionException 
+   */  
+  @Test
+  public void testExecute() throws JobExecutionException
+  {
+    when(jec.getJobDetail()).thenReturn(detail);
+    when(detail.getJobDataMap()).thenReturn(dataMap);
+    when(dataMap.get(Injector.class.getName())).thenReturn(injector);
+    when(dataMap.get(Runnable.class.getName())).thenReturn(runnable);
+    when(injector.getInstance(AdministrationContext.class)).thenReturn(context);
+    new InjectionEnabledJob().execute(jec);
+    verify(context).runAsAdmin(Mockito.any(PrivilegedAction.class));
+  }
+
+}

scm-webapp/src/test/java/sonia/scm/schedule/QuartzSchedulerTest.java

@@ -0,0 +1,220 @@
+/***
+ * Copyright (c) 2015, Sebastian Sdorra
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of SCM-Manager; nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * https://bitbucket.org/sdorra/scm-manager
+ * 
+ */
+
+package sonia.scm.schedule;
+
+import com.google.inject.Injector;
+import com.google.inject.Provider;
+import java.io.IOException;
+import org.junit.Test;
+import static org.junit.Assert.*;
+import static org.mockito.Mockito.*;
+import static org.hamcrest.Matchers.*;
+import org.junit.Before;
+import org.junit.runner.RunWith;
+import org.mockito.ArgumentCaptor;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.runners.MockitoJUnitRunner;
+import org.quartz.CronTrigger;
+import org.quartz.JobDetail;
+import org.quartz.SchedulerException;
+import org.quartz.Trigger;
+
+/**
+ * Unit tests for {@link QuartzScheduler}.
+ * 
+ * @author Sebastian Sdorra
+ */
+@RunWith(MockitoJUnitRunner.class)
+public class QuartzSchedulerTest {
+
+  @Mock
+  private Injector injector;
+  
+  @Mock
+  private org.quartz.Scheduler quartzScheduler;
+  
+  private QuartzScheduler scheduler;
+  
+  @Before
+  public void setUp()
+  {
+    scheduler = new QuartzScheduler(injector, quartzScheduler);
+  }
+  
+  /**
+   * Tests {@link QuartzScheduler#schedule(java.lang.String, java.lang.Runnable)}.
+   * 
+   * @throws SchedulerException 
+   */
+  @Test
+  public void testSchedule() throws SchedulerException
+  { 
+    DummyRunnable dr = new DummyRunnable();
+    Task task = scheduler.schedule("42 2 * * * ?", dr);
+    assertNotNull(task);
+    
+    ArgumentCaptor<JobDetail> detailCaptor = ArgumentCaptor.forClass(JobDetail.class);
+    ArgumentCaptor<Trigger> triggerCaptor = ArgumentCaptor.forClass(Trigger.class);
+    verify(quartzScheduler).scheduleJob(detailCaptor.capture(), triggerCaptor.capture());
+    
+    Trigger trigger = triggerCaptor.getValue();
+    assertThat(trigger, is(instanceOf(CronTrigger.class)));
+    CronTrigger cron = (CronTrigger) trigger;
+    assertEquals("42 2 * * * ?", cron.getCronExpression());
+    
+    JobDetail detail = detailCaptor.getValue();
+    assertEquals(InjectionEnabledJob.class, detail.getJobClass());
+    Provider<Runnable> runnable = (Provider<Runnable>) detail.getJobDataMap().get(Runnable.class.getName());
+    assertNotNull(runnable);
+    assertSame(dr, runnable.get());
+    assertEquals(injector, detail.getJobDataMap().get(Injector.class.getName()));
+  }
+
+  /**
+   * Tests {@link QuartzScheduler#schedule(java.lang.String, java.lang.Class)}.
+   * 
+   * @throws SchedulerException 
+   */
+  @Test
+  public void testScheduleWithClass() throws SchedulerException
+  { 
+    scheduler.schedule("42 * * * * ?", DummyRunnable.class);
+    
+    verify(injector).getProvider(DummyRunnable.class);
+    
+    ArgumentCaptor<JobDetail> detailCaptor = ArgumentCaptor.forClass(JobDetail.class);
+    ArgumentCaptor<Trigger> triggerCaptor = ArgumentCaptor.forClass(Trigger.class);
+    verify(quartzScheduler).scheduleJob(detailCaptor.capture(), triggerCaptor.capture());
+    
+    Trigger trigger = triggerCaptor.getValue();
+    assertThat(trigger, is(instanceOf(CronTrigger.class)));
+    CronTrigger cron = (CronTrigger) trigger;
+    assertEquals("42 * * * * ?", cron.getCronExpression());
+    
+    JobDetail detail = detailCaptor.getValue();
+    assertEquals(InjectionEnabledJob.class, detail.getJobClass());
+    assertEquals(injector, detail.getJobDataMap().get(Injector.class.getName()));
+  }
+
+  /**
+   * Tests {@link QuartzScheduler#init(sonia.scm.SCMContextProvider)}.
+   * 
+   * @throws SchedulerException 
+   */
+  @Test
+  public void testInit() throws SchedulerException
+  {
+    when(quartzScheduler.isStarted()).thenReturn(Boolean.FALSE);
+    scheduler.init(null);
+    verify(quartzScheduler).start();
+  }
+  
+  /**
+   * Tests {@link QuartzScheduler#init(sonia.scm.SCMContextProvider)} when the underlying scheduler is already started.
+   * 
+   * @throws SchedulerException 
+   */  
+  @Test
+  public void testInitAlreadyRunning() throws SchedulerException
+  {
+    when(quartzScheduler.isStarted()).thenReturn(Boolean.TRUE);
+    scheduler.init(null);
+    verify(quartzScheduler, never()).start();
+  }
+  
+  /**
+   * Tests {@link QuartzScheduler#init(sonia.scm.SCMContextProvider)} when the underlying scheduler throws an exception.
+   * 
+   * @throws SchedulerException 
+   */
+  @Test
+  public void testInitException() throws SchedulerException
+  {
+    when(quartzScheduler.isStarted()).thenThrow(SchedulerException.class);
+    scheduler.init(null);
+    verify(quartzScheduler, never()).start();
+  }
+  
+  /**
+   * Tests {@link QuartzScheduler#close()}.
+   * 
+   * @throws IOException
+   * @throws SchedulerException 
+   */
+  @Test
+  public void testClose() throws IOException, SchedulerException
+  {
+    when(quartzScheduler.isStarted()).thenReturn(Boolean.TRUE);
+    scheduler.close();
+    verify(quartzScheduler).shutdown();
+  }
+  
+  /**
+   * Tests {@link QuartzScheduler#close()} when the underlying scheduler is not running.
+   * 
+   * @throws IOException
+   * @throws SchedulerException 
+   */
+  @Test
+  public void testCloseNotRunning() throws IOException, SchedulerException
+  {
+    when(quartzScheduler.isStarted()).thenReturn(Boolean.FALSE);
+    scheduler.close();
+    verify(quartzScheduler, never()).shutdown();
+  }
+  
+  /**
+   * Tests {@link QuartzScheduler#close()} when the underlying scheduler throws an exception.
+   * 
+   * @throws IOException
+   * @throws SchedulerException 
+   */
+  @Test
+  public void testCloseException() throws IOException, SchedulerException
+  {
+    when(quartzScheduler.isStarted()).thenThrow(SchedulerException.class);
+    scheduler.close();
+    verify(quartzScheduler, never()).shutdown();
+  }
+
+  
+  public static class DummyRunnable implements Runnable {
+
+    @Override
+    public void run()
+    {
+      throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
+    }
+    
+  }
+}

scm-webapp/src/test/java/sonia/scm/schedule/QuartzTaskTest.java

@@ -0,0 +1,89 @@
+/***
+ * Copyright (c) 2015, Sebastian Sdorra
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of SCM-Manager; nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * https://bitbucket.org/sdorra/scm-manager
+ * 
+ */
+
+package sonia.scm.schedule;
+
+import org.junit.Test;
+import static org.junit.Assert.*;
+import static org.mockito.Mockito.*;
+import static org.hamcrest.Matchers.*;
+import org.junit.Before;
+import org.junit.runner.RunWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.runners.MockitoJUnitRunner;
+import org.quartz.JobKey;
+import org.quartz.SchedulerException;
+
+/**
+ * Unit tests for {@link QuartzTask}.
+ * 
+ * @author Sebastian Sdorra <sebastian.sdorra@triology.de>
+ */
+@RunWith(MockitoJUnitRunner.class)
+public class QuartzTaskTest {
+
+  @Mock
+  private org.quartz.Scheduler scheduler;
+  
+  private final JobKey jobKey = new JobKey("sample");
+
+  private QuartzTask task;
+  
+  @Before
+  public void setUp(){
+    task = new QuartzTask(scheduler, jobKey);
+  }
+  
+  /**
+   * Tests {@link QuartzTask#cancel()}.
+   * 
+   * @throws SchedulerException 
+   */
+  @Test
+  public void testCancel() throws SchedulerException
+  {
+    task.cancel();
+    verify(scheduler).deleteJob(jobKey);
+  }
+
+  /**
+   * Tests {@link QuartzTask#cancel()} when the scheduler throws an exception.
+   * @throws org.quartz.SchedulerException
+   */  
+  @Test(expected = RuntimeException.class)
+  public void testCancelWithException() throws SchedulerException
+  {
+    when(scheduler.deleteJob(jobKey)).thenThrow(SchedulerException.class);
+    task.cancel();
+  }
+
+}