Merge "Add REST endpoint to get a task"

gerrit-server/src/main/java/com/google/gerrit/server/config/GetTask.java

@@ -0,0 +1,28 @@
+// Copyright (C) 2014 The Android Open Source Project
+//
+// Licensed 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 com.google.gerrit.server.config;
+
+import com.google.gerrit.extensions.restapi.RestReadView;
+import com.google.gerrit.server.config.ListTasks.TaskInfo;
+import com.google.inject.Singleton;
+
+@Singleton
+public class GetTask implements RestReadView<TaskResource> {
+
+  @Override
+  public TaskInfo apply(TaskResource rsrc) {
+    return new TaskInfo(rsrc.getTask());
+  }
+}

gerrit-server/src/main/java/com/google/gerrit/server/config/Module.java

@@ -31,6 +31,7 @@ public class Module extends RestApiModule {
     DynamicMap.mapOf(binder(), TOP_MENU_KIND);
     child(CONFIG_KIND, "capabilities").to(CapabilitiesCollection.class);
     child(CONFIG_KIND, "tasks").to(TasksCollection.class);
+    get(TASK_KIND).to(GetTask.class);
     child(CONFIG_KIND, "top-menus").to(TopMenuCollection.class);
     get(CONFIG_KIND, "version").to(GetVersion.class);
     get(CONFIG_KIND, "preferences").to(GetPreferences.class);

gerrit-server/src/main/java/com/google/gerrit/server/config/TaskResource.java

@@ -15,9 +15,20 @@
 package com.google.gerrit.server.config;
 
 import com.google.gerrit.extensions.restapi.RestView;
+import com.google.gerrit.server.git.WorkQueue.Task;
 import com.google.inject.TypeLiteral;
 
 public class TaskResource extends ConfigResource {
   public static final TypeLiteral<RestView<TaskResource>> TASK_KIND =
       new TypeLiteral<RestView<TaskResource>>() {};
+
+  private final Task<?> task;
+
+  public TaskResource(Task<?> task) {
+    this.task = task;
+  }
+
+  public Task<?> getTask() {
+    return task;
+  }
 }

gerrit-server/src/main/java/com/google/gerrit/server/config/TasksCollection.java

@@ -15,11 +15,20 @@
 package com.google.gerrit.server.config;
 
 import com.google.gerrit.extensions.registration.DynamicMap;
+import com.google.gerrit.extensions.restapi.AuthException;
 import com.google.gerrit.extensions.restapi.ChildCollection;
 import com.google.gerrit.extensions.restapi.IdString;
 import com.google.gerrit.extensions.restapi.ResourceNotFoundException;
 import com.google.gerrit.extensions.restapi.RestView;
+import com.google.gerrit.server.CurrentUser;
+import com.google.gerrit.server.IdentifiedUser;
+import com.google.gerrit.server.git.WorkQueue;
+import com.google.gerrit.server.git.WorkQueue.ProjectTask;
+import com.google.gerrit.server.git.WorkQueue.Task;
+import com.google.gerrit.server.project.ProjectCache;
+import com.google.gerrit.server.project.ProjectState;
 import com.google.inject.Inject;
+import com.google.inject.Provider;
 import com.google.inject.Singleton;
 
 @Singleton
@@ -27,12 +36,19 @@ public class TasksCollection implements
     ChildCollection<ConfigResource, TaskResource> {
   private final DynamicMap<RestView<TaskResource>> views;
   private final ListTasks list;
+  private final WorkQueue workQueue;
+  private final Provider<IdentifiedUser> self;
+  private final ProjectCache projectCache;
 
   @Inject
-  TasksCollection(DynamicMap<RestView<TaskResource>> views,
-      ListTasks list) {
+  TasksCollection(DynamicMap<RestView<TaskResource>> views, ListTasks list,
+      WorkQueue workQueue, Provider<IdentifiedUser> self,
+      ProjectCache projectCache) {
     this.views = views;
     this.list = list;
+    this.workQueue = workQueue;
+    this.self = self;
+    this.projectCache = projectCache;
   }
 
   @Override
@@ -42,8 +58,30 @@ public class TasksCollection implements
 
   @Override
   public TaskResource parse(ConfigResource parent, IdString id)
-      throws ResourceNotFoundException {
-    throw new ResourceNotFoundException(id);
+      throws ResourceNotFoundException, AuthException {
+    CurrentUser user = self.get();
+    if (!user.isIdentifiedUser()) {
+      throw new AuthException("Authentication required");
+    }
+
+    try {
+      int taskId = (int) Long.parseLong(id.get(), 16);
+      Task<?> task = workQueue.getTask(taskId);
+      if (task != null) {
+        if (self.get().getCapabilities().canViewQueue()) {
+          return new TaskResource(task);
+        } else if (task instanceof ProjectTask) {
+          ProjectTask<?> projectTask = ((ProjectTask<?>) task);
+          ProjectState e = projectCache.get(projectTask.getProjectNameKey());
+          if (e != null && e.controlFor(user).isVisible()) {
+            return new TaskResource(task);
+          }
+        }
+      }
+      throw new ResourceNotFoundException(id);
+    } catch (NumberFormatException e) {
+      throw new ResourceNotFoundException(id);
+    }
   }
 
   @Override