Change in ovirt-engine[master]: core: MacPoolManager strategy, alternative implementation

Mike Kolesnik has submitted this change and it was merged. Change subject: core: MacPoolManager strategy, alternative implementation ...................................................................... core: MacPoolManager strategy, alternative implementation * introduced new alternative implentation of MacPoolManager which is less eager browsing its internal structures and less in need of RAM. There is still need of counting how many times is each MAC used, but duplicate MAC address is something which is not expected to occur very often. BitSet is used to store whether is MAC used or not, and if it has usage higher than 1, pair MAC<-->count is stored in Map. Counts of user specified MAC outside from that MAC range are still stored in HashMap, but modifiable int wrappers are used instead of java.lang.Integer to cut down calls to HashMap. *user can input multiple MAC ranges and original implementation dealt with duplicates using HashSet, which means potentially lot of unnecessary effort and copying data in RAM from one place to another. New class RangesWithoutOverlaps was introduced, which takes user input and transfors it into N intervals (as few as possible) without overlaps. *MacPoolManager is singleton; only 'getInstance()' has to be static other methods should be instance methods. Having them static is mixing concepts. Change-Id: I69a5c1b3b43966e49fa6039597c06966ce514618 Bug-Url: https://bugzilla.redhat.com/1063064 Signed-off-by: Martin Mucha <mmucha(a)redhat.com&gt; --- M backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/network/MacPoolManager.java D backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/network/MacPoolManagerOriginal.java A backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/network/MacPoolManagerRanges.java M backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/network/MacPoolManagerStrategy.java A backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/network/MacsStorage.java M backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/network/ObjectCounter.java A backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/network/Range.java A backend/manager/modules/bll/src/test/java/org/ovirt/engine/core/bll/network/RangeTest.java M backend/manager/modules/utils/src/main/java/org/ovirt/engine/core/utils/MacAddressRangeUtils.java M backend/manager/modules/utils/src/test/java/org/ovirt/engine/core/utils/MacAddressRangeUtilsTest.java 10 files changed, 682 insertions(+), 401 deletions(-) Approvals: Mike Kolesnik: Verified; Looks good to me, approved -- To view, visit http://gerrit.ovirt.org/26405 To unsubscribe, visit http://gerrit.ovirt.org/settings Gerrit-MessageType: merged Gerrit-Change-Id: I69a5c1b3b43966e49fa6039597c06966ce514618 Gerrit-PatchSet: 32 Gerrit-Project: ovirt-engine Gerrit-Branch: master Gerrit-Owner: Martin Mucha <mmucha(a)redhat.com&gt; Gerrit-Reviewer: Martin Mucha <mmucha(a)redhat.com&gt; Gerrit-Reviewer: Mike Kolesnik <mkolesni(a)redhat.com&gt; Gerrit-Reviewer: Moti Asayag <masayag(a)redhat.com&gt; Gerrit-Reviewer: Yevgeny Zaspitsky <yzaspits(a)redhat.com&gt; Gerrit-Reviewer: automation(a)ovirt.org Gerrit-Reviewer: oVirt Jenkins CI Server