Support for defining multiple ranges in RANGE_RULE

Change-Id: I5a5a1c61629a684dfc016f14000adbcb1e6dc9a1
Issue-ID: CCSDK-315
Signed-off-by: Stan Bonev <sb5356@att.com>

8 files changed, 301 insertions, 187 deletions

diff --git a/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/alloc/DbAllocationRule.java b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/alloc/DbAllocationRule.java
index e9f6e0d3..af6a2801 100644
--- a/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/alloc/DbAllocationRule.java
+++ b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/alloc/DbAllocationRule.java
@@ -36,6 +36,7 @@ import org.onap.ccsdk.sli.adaptors.rm.data.AllocationAction;
 import org.onap.ccsdk.sli.adaptors.rm.data.AllocationRequest;
 import org.onap.ccsdk.sli.adaptors.rm.data.LimitAllocationRequest;
 import org.onap.ccsdk.sli.adaptors.rm.data.MultiResourceAllocationRequest;
+import org.onap.ccsdk.sli.adaptors.rm.data.Range;
 import org.onap.ccsdk.sli.adaptors.rm.data.RangeAllocationRequest;
 import org.onap.ccsdk.sli.adaptors.util.expr.ExpressionEvaluator;
 import org.onap.ccsdk.sli.adaptors.util.str.StrUtil;
@@ -44,127 +45,147 @@ import org.slf4j.LoggerFactory;
 
 public class DbAllocationRule implements AllocationRule {
 
-	private static final Logger log = LoggerFactory.getLogger(DbAllocationRule.class);
-
-	private ResourceRuleDao resourceRuleDao;
-	private RangeRuleDao rangeRuleDao;
-
-	@Override
-	public AllocationRequest buildAllocationRequest(String serviceModel, ResourceEntity resourceEntity,
-			ResourceTarget resourceTarget, ResourceRequest resourceRequest, boolean checkOnly, boolean change) {
-		List<ResourceRule> resourceRuleList = resourceRuleDao.getResourceRules(serviceModel,
-				resourceTarget.resourceTargetType);
-		List<RangeRule> rangeRuleList = rangeRuleDao.getRangeRules(serviceModel, resourceTarget.resourceTargetType);
-
-		List<AllocationRequest> arlist = new ArrayList<>();
-
-		for (ResourceRule rr : resourceRuleList) {
-			if (resourceRequest.resourceName != null && !resourceRequest.resourceName.equals(rr.resourceName)) {
-				continue;
-			}
-
-			boolean matches = ExpressionEvaluator.evalBoolean(rr.serviceExpression, resourceEntity.data);
-			matches = matches && ExpressionEvaluator.evalBoolean(rr.equipmentExpression, resourceTarget.data);
-
-			if (matches) {
-				AllocationRequest ar1 = buildAllocationRequest(rr, resourceEntity, resourceTarget, resourceRequest,
-						checkOnly, change);
-				arlist.add(ar1);
-			}
-		}
-
-		for (RangeRule rr : rangeRuleList) {
-			if (resourceRequest.resourceName != null && !resourceRequest.resourceName.equals(rr.rangeName)) {
-				continue;
-			}
-			if (resourceRequest.endPointPosition != null
-					&& !resourceRequest.endPointPosition.equals(rr.endPointPosition)) {
-				continue;
-			}
-
-			AllocationRequest ar1 = buildAllocationRequest(rr, resourceEntity, resourceTarget, resourceRequest,
-					checkOnly, change);
-			arlist.add(ar1);
-		}
-
-		if (arlist.isEmpty()) {
-			return null;
-		}
-
-		if (arlist.size() == 1) {
-			return arlist.get(0);
-		}
-
-		MultiResourceAllocationRequest ar = new MultiResourceAllocationRequest();
-		ar.stopOnFirstFailure = false;
-		ar.allocationRequestList = arlist;
-		return ar;
-	}
-
-	private AllocationRequest buildAllocationRequest(ResourceRule resourceRule, ResourceEntity resourceEntity,
-			ResourceTarget resourceTarget, ResourceRequest resourceRequest, boolean checkOnly, boolean change) {
-		StrUtil.info(log, resourceRule);
-
-		LimitAllocationRequest ar = new LimitAllocationRequest();
-		ar.applicationId = resourceRequest.applicationId;
-		ar.resourceUnionId = resourceEntity.resourceEntityType + "::" + resourceEntity.resourceEntityId;
-		ar.resourceSetId = ar.resourceUnionId + "::" + resourceEntity.resourceEntityVersion;
-		ar.resourceName = resourceRule.resourceName;
-		if (resourceRequest.resourceShareGroup != null) {
-			ar.resourceShareGroupList = Collections.singleton(resourceRequest.resourceShareGroup);
-		}
-		ar.assetId = resourceTarget.resourceTargetType + "::" + resourceTarget.resourceTargetId;
-		ar.missingResourceAction = AllocationAction.Succeed_Allocate;
-		ar.expiredResourceAction = AllocationAction.Succeed_Allocate;
-		ar.replace = resourceRequest.replace;
-		ar.strict = false;
-		ar.checkLimit = ExpressionEvaluator.evalLong(
-				change ? resourceRule.hardLimitExpression : resourceRule.softLimitExpression, resourceTarget.data);
-		ar.checkCount = ExpressionEvaluator.evalLong(resourceRule.allocationExpression, resourceEntity.data);
-		ar.allocateCount = checkOnly ? 0 : ar.checkCount;
-		return ar;
-	}
-
-	private AllocationRequest buildAllocationRequest(RangeRule rangeRule, ResourceEntity resourceEntity,
-			ResourceTarget resourceTarget, ResourceRequest resourceRequest, boolean checkOnly, boolean change) {
-		StrUtil.info(log, rangeRule);
-
-		RangeAllocationRequest ar = new RangeAllocationRequest();
-		ar.applicationId = resourceRequest.applicationId;
-		if (resourceRequest.endPointPosition != null) {
-			ar.resourceUnionId = resourceEntity.resourceEntityType + "::" + resourceEntity.resourceEntityId + "::"
-					+ resourceRequest.endPointPosition;
-			ar.endPointPosition = resourceRequest.endPointPosition;
-		}else
-			ar.resourceUnionId = resourceEntity.resourceEntityType + "::" + resourceEntity.resourceEntityId;
-		ar.resourceSetId = ar.resourceUnionId + "::" + resourceEntity.resourceEntityVersion;
-		ar.resourceName = rangeRule.rangeName;
-		if (resourceRequest.resourceShareGroup != null) {
-			ar.resourceShareGroupList = Collections.singleton(resourceRequest.resourceShareGroup);
-		}
-		ar.assetId = resourceTarget.resourceTargetType + "::" + resourceTarget.resourceTargetId;
-		ar.requestedNumbers = StrUtil.listInt(resourceRequest.rangeRequestedNumbers,
-				"Invalid value for requested-numbers");
-		if (ar.requestedNumbers != null) {
-			ar.requestedCount = ar.requestedNumbers.size();
-		}
-		ar.excludeNumbers = StrUtil.listInt(resourceRequest.rangeExcludeNumbers, "Invalid value for exclude-numbers");
-		ar.reverseOrder = resourceRequest.rangeReverseOrder;
-		ar.missingResourceAction = AllocationAction.Succeed_Allocate;
-		ar.expiredResourceAction = AllocationAction.Succeed_Allocate;
-		ar.replace = resourceRequest.replace;
-		ar.check = true;
-		ar.allocate = !checkOnly;
-		ar.checkMin = resourceRequest.rangeMinOverride >= 0 ? resourceRequest.rangeMinOverride : rangeRule.minValue;
-		ar.checkMax = resourceRequest.rangeMaxOverride >= 0 ? resourceRequest.rangeMaxOverride : rangeRule.maxValue;
-		return ar;
-	}
-
-	public void setResourceRuleDao(ResourceRuleDao resourceRuleDao) {
-		this.resourceRuleDao = resourceRuleDao;
-	}
-
-	public void setRangeRuleDao(RangeRuleDao rangeRuleDao) {
-		this.rangeRuleDao = rangeRuleDao;
-	}
+    private static final Logger log = LoggerFactory.getLogger(DbAllocationRule.class);
+
+    private ResourceRuleDao resourceRuleDao;
+    private RangeRuleDao rangeRuleDao;
+
+    @Override
+    public AllocationRequest buildAllocationRequest(String serviceModel, ResourceEntity resourceEntity,
+            ResourceTarget resourceTarget, ResourceRequest resourceRequest, boolean checkOnly, boolean change) {
+        List<ResourceRule> resourceRuleList = resourceRuleDao.getResourceRules(serviceModel,
+                resourceTarget.resourceTargetType);
+        List<RangeRule> rangeRuleList = rangeRuleDao.getRangeRules(serviceModel, resourceTarget.resourceTargetType);
+
+        List<AllocationRequest> arlist = new ArrayList<>();
+
+        for (ResourceRule rr : resourceRuleList) {
+            if (resourceRequest.resourceName != null && !resourceRequest.resourceName.equals(rr.resourceName)) {
+                continue;
+            }
+
+            boolean matches = ExpressionEvaluator.evalBoolean(rr.serviceExpression, resourceEntity.data);
+            matches = matches && ExpressionEvaluator.evalBoolean(rr.equipmentExpression, resourceTarget.data);
+
+            if (matches) {
+                AllocationRequest ar1 = buildAllocationRequest(rr, resourceEntity, resourceTarget, resourceRequest,
+                        checkOnly, change);
+                arlist.add(ar1);
+            }
+        }
+
+        for (RangeRule rr : rangeRuleList) {
+            if (resourceRequest.resourceName != null && !resourceRequest.resourceName.equals(rr.rangeName)) {
+                continue;
+            }
+            if (resourceRequest.endPointPosition != null
+                    && !resourceRequest.endPointPosition.equals(rr.endPointPosition)) {
+                continue;
+            }
+
+            if (!ExpressionEvaluator.evalBoolean(rr.equipmentExpression, resourceTarget.data)) {
+                continue;
+            }
+
+            AllocationRequest ar1 = buildAllocationRequest(rr, resourceEntity, resourceTarget, resourceRequest,
+                    checkOnly, change);
+            arlist.add(ar1);
+        }
+
+        if (arlist.isEmpty()) {
+            return null;
+        }
+
+        if (arlist.size() == 1) {
+            return arlist.get(0);
+        }
+
+        MultiResourceAllocationRequest ar = new MultiResourceAllocationRequest();
+        ar.stopOnFirstFailure = false;
+        ar.allocationRequestList = arlist;
+        return ar;
+    }
+
+    private AllocationRequest buildAllocationRequest(ResourceRule resourceRule, ResourceEntity resourceEntity,
+            ResourceTarget resourceTarget, ResourceRequest resourceRequest, boolean checkOnly, boolean change) {
+        StrUtil.info(log, resourceRule);
+
+        LimitAllocationRequest ar = new LimitAllocationRequest();
+        ar.applicationId = resourceRequest.applicationId;
+        ar.resourceUnionId = resourceEntity.resourceEntityType + "::" + resourceEntity.resourceEntityId;
+        ar.resourceSetId = ar.resourceUnionId + "::" + resourceEntity.resourceEntityVersion;
+        ar.resourceName = resourceRule.resourceName;
+        if (resourceRequest.resourceShareGroup != null) {
+            ar.resourceShareGroupList = Collections.singleton(resourceRequest.resourceShareGroup);
+        }
+        ar.assetId = resourceTarget.resourceTargetType + "::" + resourceTarget.resourceTargetId;
+        ar.missingResourceAction = AllocationAction.Succeed_Allocate;
+        ar.expiredResourceAction = AllocationAction.Succeed_Allocate;
+        ar.replace = resourceRequest.replace;
+        ar.strict = false;
+        ar.checkLimit = ExpressionEvaluator.evalLong(
+                change ? resourceRule.hardLimitExpression : resourceRule.softLimitExpression, resourceTarget.data);
+        ar.checkCount = ExpressionEvaluator.evalLong(resourceRule.allocationExpression, resourceEntity.data);
+        ar.allocateCount = checkOnly ? 0 : ar.checkCount;
+        return ar;
+    }
+
+    private AllocationRequest buildAllocationRequest(RangeRule rangeRule, ResourceEntity resourceEntity,
+            ResourceTarget resourceTarget, ResourceRequest resourceRequest, boolean checkOnly, boolean change) {
+        StrUtil.info(log, rangeRule);
+
+        RangeAllocationRequest ar = new RangeAllocationRequest();
+        ar.applicationId = resourceRequest.applicationId;
+        if (resourceRequest.endPointPosition != null) {
+            ar.resourceUnionId = resourceEntity.resourceEntityType + "::" + resourceEntity.resourceEntityId + "::"
+                    + resourceRequest.endPointPosition;
+            ar.endPointPosition = resourceRequest.endPointPosition;
+        } else {
+            ar.resourceUnionId = resourceEntity.resourceEntityType + "::" + resourceEntity.resourceEntityId;
+        }
+        ar.resourceSetId = ar.resourceUnionId + "::" + resourceEntity.resourceEntityVersion;
+        ar.resourceName = rangeRule.rangeName;
+        if (resourceRequest.resourceShareGroup != null) {
+            ar.resourceShareGroupList = Collections.singleton(resourceRequest.resourceShareGroup);
+        }
+        ar.assetId = resourceTarget.resourceTargetType + "::" + resourceTarget.resourceTargetId;
+        ar.requestedNumbers = StrUtil.listInt(resourceRequest.rangeRequestedNumbers,
+                "Invalid value for requested-numbers");
+        if (ar.requestedNumbers != null) {
+            ar.requestedCount = ar.requestedNumbers.size();
+        }
+        ar.excludeNumbers = StrUtil.listInt(resourceRequest.rangeExcludeNumbers, "Invalid value for exclude-numbers");
+        ar.reverseOrder = resourceRequest.rangeReverseOrder;
+        ar.missingResourceAction = AllocationAction.Succeed_Allocate;
+        ar.expiredResourceAction = AllocationAction.Succeed_Allocate;
+        ar.replace = resourceRequest.replace;
+        ar.check = true;
+        ar.allocate = !checkOnly;
+        ar.rangeList = rangeRule.rangeList;
+        if (ar.rangeList == null || ar.rangeList.isEmpty()) {
+            if (resourceRequest.rangeMinOverride >= 0 && resourceRequest.rangeMaxOverride >= resourceRequest.rangeMinOverride) {
+                ar.rangeList = new ArrayList<>();
+                Range range = new Range();
+                range.min = resourceRequest.rangeMinOverride;
+                range.max = resourceRequest.rangeMaxOverride;
+                ar.rangeList.add(range);
+            }
+        } else {
+            if (resourceRequest.rangeMinOverride >= 0) {
+                ar.rangeList.get(0).min = resourceRequest.rangeMinOverride;
+            }
+            if (resourceRequest.rangeMaxOverride >= 0) {
+                ar.rangeList.get(ar.rangeList.size() - 1).max = resourceRequest.rangeMaxOverride;
+            }
+        }
+        return ar;
+    }
+
+    public void setResourceRuleDao(ResourceRuleDao resourceRuleDao) {
+        this.resourceRuleDao = resourceRuleDao;
+    }
+
+    public void setRangeRuleDao(RangeRuleDao rangeRuleDao) {
+        this.rangeRuleDao = rangeRuleDao;
+    }
 }
diff --git a/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/comp/EndPointAllocatorImpl.java b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/comp/EndPointAllocatorImpl.java
index e904035b..952ceb6b 100644
--- a/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/comp/EndPointAllocatorImpl.java
+++ b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/comp/EndPointAllocatorImpl.java
@@ -46,9 +46,8 @@ import org.slf4j.LoggerFactory;
 
 public class EndPointAllocatorImpl implements EndPointAllocator {
 
-    @SuppressWarnings("unused")
     private static final Logger log = LoggerFactory.getLogger(EndPointAllocatorImpl.class);
-
+    
     private ResourceManager resourceManager;
 
     private Map<String, List<AllocationRule>> allocationRuleMap;
diff --git a/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/rule/dao/RangeRuleDaoImpl.java b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/rule/dao/RangeRuleDaoImpl.java
index 825261ef..caac1c96 100644
--- a/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/rule/dao/RangeRuleDaoImpl.java
+++ b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/rule/dao/RangeRuleDaoImpl.java
@@ -21,10 +21,10 @@
 
 package org.onap.ccsdk.sli.adaptors.ra.rule.dao;
 
-import java.sql.ResultSet;
-import java.sql.SQLException;
+import java.util.ArrayList;
 import java.util.List;
 import org.onap.ccsdk.sli.adaptors.ra.rule.data.RangeRule;
+import org.onap.ccsdk.sli.adaptors.rm.data.Range;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.jdbc.core.JdbcTemplate;
@@ -42,20 +42,42 @@ public class RangeRuleDaoImpl implements RangeRuleDao {
     @Override
     public List<RangeRule> getRangeRules(String serviceModel, String equipLevel) {
         List<RangeRule> rangeRuleList =
-                jdbcTemplate.query(GET_SQL, new Object[] {serviceModel, equipLevel}, new RowMapper<RangeRule>() {
+                jdbcTemplate.query(GET_SQL, new Object[] {serviceModel, equipLevel}, (RowMapper<RangeRule>) (rs, rowNum) -> {
+                    RangeRule rl = new RangeRule();
+                    rl.id = rs.getLong("range_rule_id");
+                    rl.rangeName = rs.getString("range_name");
+                    rl.serviceModel = rs.getString("service_model");
+                    rl.endPointPosition = rs.getString("end_point_position");
+                    rl.equipmentLevel = rs.getString("equipment_level");
+                    rl.equipmentExpression = rs.getString("equipment_expression");
 
-                    @Override
-                    public RangeRule mapRow(ResultSet rs, int rowNum) throws SQLException {
-                        RangeRule rl = new RangeRule();
-                        rl.id = rs.getLong("range_rule_id");
-                        rl.rangeName = rs.getString("range_name");
-                        rl.serviceModel = rs.getString("service_model");
-                        rl.endPointPosition = rs.getString("end_point_position");
-                        rl.equipmentLevel = rs.getString("equipment_level");
-                        rl.minValue = rs.getInt("min_value");
-                        rl.maxValue = rs.getInt("max_value");
-                        return rl;
+                    String rangesStr = rs.getString("ranges");
+                    String[] ranges = rangesStr.split(",");
+                    rl.rangeList = new ArrayList<>();
+                    for (String rangeStr : ranges) {
+                        Range range = new Range();
+                        String[] nn = rangeStr.split("-");
+                        if (nn.length >= 1) {
+                            try {
+                                range.min = range.max = Integer.parseInt(nn[0]);
+                            } catch (NumberFormatException e) {
+                                log.warn("Invalid value found in DB for range: " + rangeStr, e);
+                            }
+                        }
+                        if (nn.length >= 2) {
+                            try {
+                                range.max = Integer.parseInt(nn[1]);
+                            } catch (NumberFormatException e) {
+                                log.warn("Invalid value found in DB for range: " + rangeStr, e);
+                            }
+                        }
+                        if (nn.length > 2) {
+                            log.warn("Invalid value found in DB for range: " + rangeStr);
+                        }
+                        rl.rangeList.add(range);
                     }
+
+                    return rl;
                 });
         return rangeRuleList;
     }
diff --git a/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/rule/data/RangeRule.java b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/rule/data/RangeRule.java
index 383c2830..c1ccd819 100644
--- a/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/rule/data/RangeRule.java
+++ b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/rule/data/RangeRule.java
@@ -21,6 +21,9 @@
 
 package org.onap.ccsdk.sli.adaptors.ra.rule.data;
 
+import java.util.List;
+import org.onap.ccsdk.sli.adaptors.rm.data.Range;
+
 public class RangeRule {
 
     public long id;
@@ -28,6 +31,6 @@ public class RangeRule {
     public String serviceModel;
     public String endPointPosition;
     public String equipmentLevel;
-    public int minValue;
-    public int maxValue;
+    public String equipmentExpression;
+    public List<Range> rangeList;
 }
diff --git a/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/comp/AllocationFunction.java b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/comp/AllocationFunction.java
index 3544075f..9cae5fee 100644
--- a/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/comp/AllocationFunction.java
+++ b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/comp/AllocationFunction.java
@@ -46,6 +46,7 @@ import org.onap.ccsdk.sli.adaptors.rm.data.MultiAssetAllocationOutcome;
 import org.onap.ccsdk.sli.adaptors.rm.data.MultiAssetAllocationRequest;
 import org.onap.ccsdk.sli.adaptors.rm.data.MultiResourceAllocationOutcome;
 import org.onap.ccsdk.sli.adaptors.rm.data.MultiResourceAllocationRequest;
+import org.onap.ccsdk.sli.adaptors.rm.data.Range;
 import org.onap.ccsdk.sli.adaptors.rm.data.RangeAllocationOutcome;
 import org.onap.ccsdk.sli.adaptors.rm.data.RangeAllocationRequest;
 import org.onap.ccsdk.sli.adaptors.rm.data.RangeResource;
@@ -283,24 +284,40 @@ class AllocationFunction extends SynchronizedFunction {
                         // alignBlockSize and alignModulus are ignored. It would be harder
                         // to take them into account, and currently it is not needed.
 
-                        int uumin = uu.first() - 1;
-                        int uumax = uu.last() + 1;
-                        foundNumbers.addAll(uu);
-                        foundCount = uu.size();
-                        for (int n = uumin; foundCount < req.requestedCount && n >= req.checkMin; n--) {
-                            if (RangeUtil.checkRange(rr, req, n)) {
-                                foundNumbers.add(n);
-                                foundCount++;
-                            } else if (req.sequential) {
-                                break;
+                        // Request may contain multiple ranges. We will find the range from the request
+                        // that contains the currently used numbers (the first one). We will only look
+                        // for additional numbers in that range.
+
+                        Range range = null;
+                        if (req.rangeList != null) {
+                            for (Range range1 : req.rangeList) {
+                                if (uu.first() >= range1.min && uu.first() <= range1.max) {
+                                    range = range1;
+                                    break;
+                                }
                             }
                         }
-                        for (int n = uumax; foundCount < req.requestedCount && n <= req.checkMax; n++) {
-                            if (RangeUtil.checkRange(rr, req, n)) {
-                                foundNumbers.add(n);
-                                foundCount++;
-                            } else if (req.sequential) {
-                                break;
+
+                        if (range != null) {
+                            int uumin = uu.first() - 1;
+                            int uumax = uu.last() + 1;
+                            foundNumbers.addAll(uu);
+                            foundCount = uu.size();
+                            for (int n = uumin; foundCount < req.requestedCount && n >= range.min; n--) {
+                                if (RangeUtil.checkRange(rr, req, n)) {
+                                    foundNumbers.add(n);
+                                    foundCount++;
+                                } else if (req.sequential) {
+                                    break;
+                                }
+                            }
+                            for (int n = uumax; foundCount < req.requestedCount && n <= range.max; n++) {
+                                if (RangeUtil.checkRange(rr, req, n)) {
+                                    foundNumbers.add(n);
+                                    foundCount++;
+                                } else if (req.sequential) {
+                                    break;
+                                }
                             }
                         }
 
@@ -314,22 +331,29 @@ class AllocationFunction extends SynchronizedFunction {
                     }
                 }
 
-                if (req.reverseOrder) {
-                    for (int n = req.checkMax; foundCount < req.requestedCount && n >= req.checkMin; n--) {
-                        if (RangeUtil.checkRange(rr, req, n)) {
-                            foundNumbers.add(n);
-                            foundCount++;
-                        } else if (req.sequential) {
-                            foundCount = 0;
+                if (req.rangeList != null) {
+                    if (req.reverseOrder) {
+                        for (int i = req.rangeList.size() - 1; i >= 0; i--) {
+                            Range range = req.rangeList.get(i);
+                            for (int n = range.max; foundCount < req.requestedCount && n >= range.min; n--) {
+                                if (RangeUtil.checkRange(rr, req, n)) {
+                                    foundNumbers.add(n);
+                                    foundCount++;
+                                } else if (req.sequential) {
+                                    foundCount = 0;
+                                }
+                            }
                         }
-                    }
-                } else {
-                    for (int n = req.checkMin; foundCount < req.requestedCount && n <= req.checkMax; n++) {
-                        if (RangeUtil.checkRange(rr, req, n)) {
-                            foundNumbers.add(n);
-                            foundCount++;
-                        } else if (req.sequential) {
-                            foundCount = 0;
+                    } else {
+                        for (Range range : req.rangeList) {
+                            for (int n = range.min; foundCount < req.requestedCount && n <= range.max; n++) {
+                                if (RangeUtil.checkRange(rr, req, n)) {
+                                    foundNumbers.add(n);
+                                    foundCount++;
+                                } else if (req.sequential) {
+                                    foundCount = 0;
+                                }
+                            }
                         }
                     }
                 }
diff --git a/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/data/Range.java b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/data/Range.java
new file mode 100644
index 00000000..16be77f5
--- /dev/null
+++ b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/data/Range.java
@@ -0,0 +1,28 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openECOMP : SDN-C
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights
+ *                         reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.ccsdk.sli.adaptors.rm.data;
+
+public class Range {
+
+    public int min = 0;
+    public int max = 0;
+}
diff --git a/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/data/RangeAllocationRequest.java b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/data/RangeAllocationRequest.java
index 9581244b..d87469fd 100644
--- a/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/data/RangeAllocationRequest.java
+++ b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/data/RangeAllocationRequest.java
@@ -21,12 +21,12 @@
 
 package org.onap.ccsdk.sli.adaptors.rm.data;
 
+import java.util.List;
 import java.util.SortedSet;
 
 public class RangeAllocationRequest extends AllocationRequest {
 
-    public int checkMin = 0;
-    public int checkMax = 0;
+    public List<Range> rangeList = null;
     public boolean check = false;
     public boolean allocate = false;
     public boolean replace = false;
diff --git a/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/util/RangeUtil.java b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/util/RangeUtil.java
index 04f6e8c5..4685233d 100644
--- a/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/util/RangeUtil.java
+++ b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/util/RangeUtil.java
@@ -27,6 +27,7 @@ import java.util.Set;
 import java.util.SortedSet;
 import java.util.TreeSet;
 import org.onap.ccsdk.sli.adaptors.rm.data.AllocationItem;
+import org.onap.ccsdk.sli.adaptors.rm.data.Range;
 import org.onap.ccsdk.sli.adaptors.rm.data.RangeAllocationItem;
 import org.onap.ccsdk.sli.adaptors.rm.data.RangeAllocationRequest;
 import org.onap.ccsdk.sli.adaptors.rm.data.RangeResource;
@@ -48,27 +49,43 @@ public class RangeUtil {
     }
 
     public static boolean checkRange(RangeResource r, RangeAllocationRequest req, int num) {
-        if (num < req.checkMin || num > req.checkMax) {
-            return false;
-        }
-
         if (req.excludeNumbers != null && req.excludeNumbers.contains(num)) {
             return false;
         }
 
-        if (r.allocationItems != null) {
-            for (AllocationItem ai : r.allocationItems) {
-                RangeAllocationItem rai = (RangeAllocationItem) ai;
-                if (!eq(req.resourceUnionId, rai.resourceUnionId) && rai.used != null && rai.used.contains(num)) {
-                    if (!overlap(rai.resourceShareGroupList, req.resourceShareGroupList)) {
-                        return false;
+        if (req.rangeList != null && !req.rangeList.isEmpty()) {
+            boolean good = false;
+            for (Range range : req.rangeList) {
+                if (num < range.min || num > range.min) {
+                    continue;
+                }
+
+                boolean found = false;
+                if (r.allocationItems != null) {
+                    for (AllocationItem ai : r.allocationItems) {
+                        RangeAllocationItem rai = (RangeAllocationItem) ai;
+                        if (!eq(req.resourceUnionId, rai.resourceUnionId) && rai.used != null
+                                && rai.used.contains(num)) {
+                            if (!overlap(rai.resourceShareGroupList, req.resourceShareGroupList)) {
+                                found = true;
+                                break;
+                            }
+                        }
+                        if (!req.replace && eq(req.resourceSetId, rai.resourceSetId) && rai.used != null
+                                && rai.used.contains(num)) {
+                            found = true;
+                            break;
+                        }
                     }
                 }
-                if (!req.replace && eq(req.resourceSetId, rai.resourceSetId) && rai.used != null
-                        && rai.used.contains(num)) {
-                    return false;
+                
+                if (!found) {
+                    good = true;
+                    break;
                 }
             }
+            
+            return good;
         }
 
         return true;