Daniel Erez has submitted this change and it was merged. Change subject: core: CommandsBase: refactor task creation ...................................................................... core: CommandsBase: refactor task creation In order to create async tasks, CommandBase expects inheriting classes to override the ConcreteCreateTask method. For classes that do not overwrite it, an UnsupportedOperationException is thrown. However, most places that override this method contain the exact same code, where the only difference is the type of the task created. This patch suggests a new mechanism so that each inheriting class will just need to specify what type of task it requires. For commands that do not specify the type, an UnsupportedOperationException will still be thrown. This patch contains the refactoring in CommandBase, the first usecase for this mechanism as an example (using CreateSnapshotCommand) and a test case that proves that the behavior has not changed. If this patch is approved, subsequent patches will apply the new mechanism to further commands. Change-Id: I5a4c77067d43ba5c2dbaf46ff855ac14d29de2ff Signed-off-by: Allon Mureinik <amureini(a)redhat.com&gt; --- M backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/CommandBase.java M backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/CreateSnapshotCommand.java A backend/manager/modules/bll/src/test/java/org/ovirt/engine/core/bll/BackwardCompatibilityTaskCreationTest.java 3 files changed, 142 insertions(+), 20 deletions(-) Approvals: Daniel Erez: Verified; Looks good to me, approved -- To view, visit http://gerrit.ovirt.org/7792 To unsubscribe, visit http://gerrit.ovirt.org/settings Gerrit-MessageType: merged Gerrit-Change-Id: I5a4c77067d43ba5c2dbaf46ff855ac14d29de2ff Gerrit-PatchSet: 7 Gerrit-Project: ovirt-engine Gerrit-Branch: master Gerrit-Owner: Allon Mureinik <amureini(a)redhat.com&gt; Gerrit-Reviewer: Allon Mureinik <amureini(a)redhat.com&gt; Gerrit-Reviewer: Ayal Baron <abaron(a)redhat.com&gt; Gerrit-Reviewer: Daniel Erez <derez(a)redhat.com&gt; Gerrit-Reviewer: Eli Mesika <emesika(a)redhat.com&gt; Gerrit-Reviewer: Maor Lipchuk <mlipchuk(a)redhat.com&gt; Gerrit-Reviewer: Omer Frenkel <ofrenkel(a)redhat.com&gt; Gerrit-Reviewer: Vered Volansky <vvolansk(a)redhat.com&gt; Gerrit-Reviewer: Yair Zaslavsky <yzaslavs(a)redhat.com&gt;