resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/util/RangeUtil.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * openECOMP : SDN-C
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property. All rights
   6  *                         reserved.
   7  * ================================================================================
   8  * Licensed under the Apache License, Version 2.0 (the "License");
   9  * you may not use this file except in compliance with the License.
  10  * You may obtain a copy of the License at
  11  *
  12  *      http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing, software
  15  * distributed under the License is distributed on an "AS IS" BASIS,
  16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17  * See the License for the specific language governing permissions and
  18  * limitations under the License.
  19  * ============LICENSE_END=========================================================
  20  */
  21
  22 package org.onap.ccsdk.sli.adaptors.rm.util;
  23
  24 import java.util.ArrayList;
  25 import java.util.Date;
  26 import java.util.Set;
  27 import java.util.SortedSet;
  28 import java.util.TreeSet;
  29 import org.onap.ccsdk.sli.adaptors.rm.data.AllocationItem;
  30 import org.onap.ccsdk.sli.adaptors.rm.data.Range;
  31 import org.onap.ccsdk.sli.adaptors.rm.data.RangeAllocationItem;
  32 import org.onap.ccsdk.sli.adaptors.rm.data.RangeAllocationRequest;
  33 import org.onap.ccsdk.sli.adaptors.rm.data.RangeResource;
  34 import org.onap.ccsdk.sli.adaptors.rm.data.ResourceKey;
  35 import org.onap.ccsdk.sli.adaptors.rm.data.ResourceType;
  36
  37 public class RangeUtil {
  38
  39     public static void recalculate(RangeResource r) {
  40         r.used = new TreeSet<>();
  41         if (r.allocationItems != null) {
  42             for (AllocationItem ai : r.allocationItems) {
  43                 RangeAllocationItem rai = (RangeAllocationItem) ai;
  44                 if (rai.used != null) {
  45                     r.used.addAll(rai.used);
  46                 }
  47             }
  48         }
  49     }
  50
  51     public static boolean checkRange(RangeResource r, RangeAllocationRequest req, int num) {
  52         if (req.excludeNumbers != null && req.excludeNumbers.contains(num)) {
  53             return false;
  54         }
  55
  56         if (req.rangeList != null && !req.rangeList.isEmpty()) {
  57             boolean good = false;
  58             for (Range range : req.rangeList) {
  59                 if (num < range.min || num > range.min) {
  60                     continue;
  61                 }
  62
  63                 boolean found = false;
  64                 if (r.allocationItems != null) {
  65                     for (AllocationItem ai : r.allocationItems) {
  66                         RangeAllocationItem rai = (RangeAllocationItem) ai;
  67                         if (!eq(req.resourceUnionId, rai.resourceUnionId) && rai.used != null
  68                                 && rai.used.contains(num)) {
  69                             if (!overlap(rai.resourceShareGroupList, req.resourceShareGroupList)) {
  70                                 found = true;
  71                                 break;
  72                             }
  73                         }
  74                         if (!req.replace && eq(req.resourceSetId, rai.resourceSetId) && rai.used != null
  75                                 && rai.used.contains(num)) {
  76                             found = true;
  77                             break;
  78                         }
  79                     }
  80                 }
  81
  82                 if (!found) {
  83                     good = true;
  84                     break;
  85                 }
  86             }
  87
  88             return good;
  89         }
  90
  91         return true;
  92     }
  93
  94     public static SortedSet<Integer> getUsed(RangeResource r, String resourceUnionId) {
  95         SortedSet<Integer> used = new TreeSet<>();
  96         if (r.allocationItems != null) {
  97             for (AllocationItem ai : r.allocationItems) {
  98                 RangeAllocationItem rai = (RangeAllocationItem) ai;
  99                 if (eq(resourceUnionId, rai.resourceUnionId) && rai.used != null) {
 100                     used.addAll(rai.used);
 101                 }
 102             }
 103         }
 104         return used;
 105     }
 106
 107     public static void allocateRange(RangeResource rr, SortedSet<Integer> requestedNumbers,
 108             RangeAllocationRequest req) {
 109         if (!req.allocate) {
 110             return;
 111         }
 112
 113         RangeAllocationItem rai = (RangeAllocationItem) ResourceUtil.getAllocationItem(rr, req.resourceSetId);
 114         if (rai == null) {
 115             rai = new RangeAllocationItem();
 116             rai.resourceType = ResourceType.Range;
 117             rai.resourceKey = new ResourceKey();
 118             rai.resourceKey.assetId = req.assetId;
 119             rai.resourceKey.resourceName = req.resourceName;
 120             rai.applicationId = req.applicationId;
 121             rai.resourceSetId = req.resourceSetId;
 122             rai.resourceUnionId = req.resourceUnionId;
 123             rai.resourceShareGroupList = req.resourceShareGroupList;
 124             rai.used = requestedNumbers;
 125
 126             if (rr.allocationItems == null) {
 127                 rr.allocationItems = new ArrayList<>();
 128             }
 129             rr.allocationItems.add(rai);
 130         } else if (req.replace) {
 131             rai.used = requestedNumbers;
 132         } else {
 133             rai.used.addAll(requestedNumbers);
 134         }
 135
 136         rai.allocationTime = new Date();
 137
 138         recalculate(rr);
 139     }
 140
 141     private static boolean eq(Object o1, Object o2) {
 142         return o1 == null ? o2 == null : o1.equals(o2);
 143     }
 144
 145     private static boolean overlap(Set<String> s1, Set<String> s2) {
 146         if (s1 == null || s1.isEmpty() || s2 == null || s2.isEmpty()) {
 147             return false;
 148         }
 149         for (String ss1 : s1) {
 150             if (s2.contains(ss1)) {
 151                 return true;
 152             }
 153         }
 154         return false;
 155     }
 156 }