[JENKINS-27966] Priority Sorter must not require matrix-project

pom.xml

@@ -66,7 +66,7 @@
 			<groupId>org.jenkins-ci.plugins</groupId>
 			<artifactId>matrix-project</artifactId>
 			<version>1.4</version>
-			<optional>false</optional> <!-- should be true but for now require this [JENKINS-27966] -->
+			<optional>true</optional> 
 		</dependency>
 		<dependency>
 			<groupId>org.jenkins-ci.plugins</groupId>

src/main/java/jenkins/advancedqueue/PriorityConfiguration.java

@@ -26,6 +26,7 @@
 import hudson.DescriptorExtensionList;
 import hudson.Extension;
 import hudson.ExtensionList;
+import hudson.Plugin;
 import hudson.matrix.MatrixConfiguration;
 import hudson.matrix.MatrixProject;
 import hudson.model.Describable;
@@ -79,6 +80,7 @@
 	private final static Logger LOGGER = Logger.getLogger(PriorityConfiguration.class.getName());
 
 	transient private Map<Integer, JobGroup> id2jobGroup;
+	transient private PriorityConfigurationMatrixHelper priorityConfigurationMatrixHelper;
 	private List<JobGroup> jobGroups;
 
 	public PriorityConfiguration() {
@@ -101,6 +103,13 @@ public int compare(JobGroup.PriorityStrategyHolder o1, JobGroup.PriorityStrategy
 				}
 			});
 		}
+		//
+		Plugin plugin = Jenkins.getInstance().getPlugin("matrix-project");
+		if(plugin == null || !plugin.getWrapper().isEnabled()){
+			priorityConfigurationMatrixHelper = null;
+		} else {
+			priorityConfigurationMatrixHelper = new PriorityConfigurationMatrixHelper();
+		}
 	}
 
 	public String getIconFileName() {
@@ -207,23 +216,9 @@ private PriorityConfigurationCallback getPriorityInternal(Queue.Item item, Prior
 		}
 
 		Job<?, ?> job = (Job<?, ?>) item.task;
-
-		// [JENKINS-8597]
-		// For MatrixConfiguration use the latest assigned Priority from the
-		// MatrixProject
-		if (job instanceof MatrixConfiguration) {
-			MatrixProject matrixProject = ((MatrixConfiguration) job).getParent();
-			priorityCallback.addDecisionLog(0, "Job is MatrixConfiguration [" + matrixProject.getName() + "] ...");
-			ItemInfo itemInfo = QueueItemCache.get().getItem(matrixProject.getName());
-			// Can be null (for example) at startup when the MatrixBuild got
-			// lost (was running at
-			// restart)
-			if (itemInfo != null) {
-				priorityCallback.addDecisionLog(0, "MatrixProject found in cache, using priority from queue-item [" + itemInfo.getItemId() + "]");
-				return priorityCallback.setPrioritySelection(itemInfo.getPriority(), itemInfo.getJobGroupId(), itemInfo.getPriorityStrategy());
-			}
-			priorityCallback.addDecisionLog(0, "MatrixProject not found in cache, assigning global default priority");
-			return priorityCallback.setPrioritySelection(PrioritySorterConfiguration.get().getStrategy().getDefaultPriority());
+
+		if (priorityConfigurationMatrixHelper != null && priorityConfigurationMatrixHelper.isMatrixConfiguration(job)) {
+			return priorityConfigurationMatrixHelper.getPriority((MatrixConfiguration) job, priorityCallback);
 		}
 
 		//

src/main/java/jenkins/advancedqueue/PriorityConfigurationMatrixHelper.java

@@ -0,0 +1,37 @@
+package jenkins.advancedqueue;
+
+import jenkins.advancedqueue.sorter.ItemInfo;
+import jenkins.advancedqueue.sorter.QueueItemCache;
+import hudson.matrix.MatrixConfiguration;
+import hudson.matrix.MatrixProject;
+import hudson.model.Job;
+
+class PriorityConfigurationMatrixHelper {
+
+	boolean isMatrixConfiguration(Job<?, ?> job) {
+		return job instanceof MatrixConfiguration;
+	}
+
+	PriorityConfigurationCallback getPriority(MatrixConfiguration matrixConfiguration,
+			PriorityConfigurationCallback priorityCallback) {
+		// [JENKINS-8597]
+		// For MatrixConfiguration use the latest assigned Priority from the
+		// MatrixProject
+		MatrixProject matrixProject = matrixConfiguration.getParent();
+		priorityCallback.addDecisionLog(0, "Job is MatrixConfiguration [" + matrixProject.getName() + "] ...");
+		ItemInfo itemInfo = QueueItemCache.get().getItem(matrixProject.getName());
+		// Can be null (for example) at startup when the MatrixBuild got
+		// lost (was running at
+		// restart)
+		if (itemInfo != null) {
+			priorityCallback.addDecisionLog(0, "MatrixProject found in cache, using priority from queue-item ["
+					+ itemInfo.getItemId() + "]");
+			return priorityCallback.setPrioritySelection(itemInfo.getPriority(), itemInfo.getJobGroupId(),
+					itemInfo.getPriorityStrategy());
+		}
+		priorityCallback.addDecisionLog(0, "MatrixProject not found in cache, assigning global default priority");
+		return priorityCallback.setPrioritySelection(PrioritySorterConfiguration.get().getStrategy()
+				.getDefaultPriority());
+
+	}
+}

src/test/java/jenkins/advancedqueue/test/MatrixTest.java

@@ -56,4 +56,18 @@ public void matrix_and_jobs_with_no_configuration() throws Exception {
 		j.waitUntilNoActivity();
 		TestRunListener.assertStartedItems();		
 	}
+
+	@Test
+	@LocalData
+	public void matrix_and_jobs_with_no_configuration_reverse() throws Exception {
+		TestRunListener.init(
+				new ExpectedItem("Matrix 0", 1), new ExpectedItem("Matrix 1", 5), 
+				new ExpectedItem("0A1=0A.", 1), new ExpectedItem("0A1=0A.", 1),
+				new ExpectedItem("1A1=1A.", 5), new ExpectedItem("1A1=1A.", 5),
+				new ExpectedItem("Job 0", 5)
+		);
+		jobHelper.scheduleMatrixProjects(new UserIdCause(), new CLICause()).scheduleProjects(new CLICause()).go();
+		j.waitUntilNoActivity();
+		TestRunListener.assertStartedItems();		
+	}
 }