RA: Allow for partial resource release

Change-Id: Ie0cffbfaae6bb0ffcdb682f91ef3481fbdb35d7a
Issue-ID: CCSDK-971
Signed-off-by: Stan Bonev <sb5356@att.com>

7 files changed, 188 insertions, 104 deletions

diff --git a/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/ResourceAllocator.java b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/ResourceAllocator.java
index c0220d6b3..944429a3c 100644
--- a/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/ResourceAllocator.java
+++ b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/ResourceAllocator.java
@@ -36,6 +36,7 @@ import org.onap.ccsdk.sli.adaptors.ra.comp.ResourceResponse;
 import org.onap.ccsdk.sli.adaptors.ra.comp.ResourceTarget;
 import org.onap.ccsdk.sli.adaptors.rm.comp.ResourceManager;
 import org.onap.ccsdk.sli.adaptors.rm.data.AllocationStatus;
+import org.onap.ccsdk.sli.adaptors.rm.data.ReleaseRequest;
 import org.onap.ccsdk.sli.adaptors.util.speed.SpeedUtil;
 import org.onap.ccsdk.sli.adaptors.util.str.StrUtil;
 import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
@@ -49,11 +50,6 @@ public class ResourceAllocator implements SvcLogicResource {
     private static final Logger log = LoggerFactory.getLogger(ResourceAllocator.class);
 
     private static final String[] INPUT_PREFIX = {"ra-input.", "tmp.resource-allocator."};
-    private static final String START_RELEASE = "Starting release for: {}";
-    private static final String START_RELEASE_FOR_TARGET = "Starting release for: {} on target: {}";
-    private static final String RESOURCE_ENTITY_ID= "resource-entity-id";
-    private static final String SERVICE_INSTANCE_ID="service-instance-id";
-    private static final String RESERVATION_ENTITY_ID= "reservation-entity-id";
 
     private ResourceManager resourceManager;
     private EndPointAllocator endPointAllocator;
@@ -104,7 +100,7 @@ public class ResourceAllocator implements SvcLogicResource {
             String orderBy, SvcLogicContext ctx) throws SvcLogicException {
 
         String resourceEntityId = getParam(ctx,
-                new String[] {SERVICE_INSTANCE_ID, RESERVATION_ENTITY_ID, RESOURCE_ENTITY_ID}, false, null);
+                new String[] {"service-instance-id", "resource-entity-id", "reservation-entity-id"}, false, null);
         String resourceEntityType =
                 getParam(ctx, new String[] {"reservation-entity-type", "resource-entity-type"}, false, null);
         String resourceEntityVersion =
@@ -150,7 +146,7 @@ public class ResourceAllocator implements SvcLogicResource {
             ResourceData rd = endPointAllocator.getResource(rt.resourceTargetType, rt.resourceTargetId, rr.resourceName,
                     rr.resourceEntityTypeFilter, rr.resourceEntityIdFilter, rr.resourceShareGroupFilter);
             setResourceDataInResponse(Collections.singletonList(rd), rsList);
-        } else if ((rr!=null && (rr.resourceTargetTypeFilter != null || rr.resourceTargetIdFilter != null))
+        } else if (rr != null && (rr.resourceTargetTypeFilter != null || rr.resourceTargetIdFilter != null)
                 && rr.resourceName != null) {
             List<ResourceData> rdlist = endPointAllocator.getResourcesForTarget(rr.resourceTargetTypeFilter,
                     rr.resourceTargetIdFilter, rr.resourceName);
@@ -201,7 +197,7 @@ public class ResourceAllocator implements SvcLogicResource {
     @Override
     public QueryStatus release(String resource, String key, SvcLogicContext ctx) throws SvcLogicException {
         String resourceEntityId = getParam(ctx,
-                new String[] {SERVICE_INSTANCE_ID, RESERVATION_ENTITY_ID, RESOURCE_ENTITY_ID}, true, null);
+                new String[] {"service-instance-id", "resource-entity-id", "reservation-entity-id"}, true, null);
         String resourceEntityType =
                 getParam(ctx, new String[] {"reservation-entity-type", "resource-entity-type"}, true, null);
         String resourceEntityVersion =
@@ -210,6 +206,11 @@ public class ResourceAllocator implements SvcLogicResource {
                 getParam(ctx, new String[] {"reservation-target-id", "resource-target-id"}, false, null);
         String resourceTargetType =
                 getParam(ctx, new String[] {"reservation-target-type", "resource-target-type"}, false, null);
+        String resourceName = getParam(ctx, new String[] {"resource-name"}, false, null);
+        String limitReleaseAmountStr = getParam(ctx, new String[] {"limit-release-amount"}, false, "-1");
+        int limitReleaseAmount = Integer.parseInt(limitReleaseAmountStr);
+        String rangeReleaseNumbers = getParam(ctx, new String[] {"range-release-numbers"}, false, null);
+
 
         String endPointPosition = getParam(ctx, "endpoint-position", false, null);
 
@@ -220,6 +221,9 @@ public class ResourceAllocator implements SvcLogicResource {
 
         ResourceRequest rr = new ResourceRequest();
         rr.endPointPosition = endPointPosition;
+        rr.resourceName = resourceName;
+        rr.rangeReleaseNumbers = rangeReleaseNumbers;
+        rr.limitReleaseAmount = limitReleaseAmount;
 
         ResourceTarget rt = new ResourceTarget();
         rt.resourceTargetType = resourceTargetType;
@@ -243,44 +247,46 @@ public class ResourceAllocator implements SvcLogicResource {
 
     public AllocationStatus release(ResourceEntity sd, ResourceRequest rr, ResourceTarget rt) throws Exception {
 
+        ReleaseRequest releaseRequest = new ReleaseRequest();
+
         if (sd != null && sd.resourceEntityVersion != null) {
-            String resourceSet = null;
+            releaseRequest.resourceSetId = null;
 
             if (rr != null && rr.endPointPosition != null && !rr.endPointPosition.isEmpty()) {
-                resourceSet = sd.resourceEntityType + "::" + sd.resourceEntityId + "::" + rr.endPointPosition + "::"
-                        + sd.resourceEntityVersion;
-            } else {
-                resourceSet = sd.resourceEntityType + "::" + sd.resourceEntityId + "::" + sd.resourceEntityVersion;
-            }
-
-            if (rt != null && rt.resourceTargetId != null && rt.resourceTargetType != null) {
-                String assetId = rt.resourceTargetType + "::" + rt.resourceTargetId;
-                log.info(START_RELEASE_FOR_TARGET, resourceSet, assetId);
-                resourceManager.releaseResourceSet(resourceSet, assetId);
+                releaseRequest.resourceSetId = sd.resourceEntityType + "::" + sd.resourceEntityId + "::"
+                        + rr.endPointPosition + "::" + sd.resourceEntityVersion;
             } else {
-                log.info(START_RELEASE, resourceSet);
-                resourceManager.releaseResourceSet(resourceSet);
+                releaseRequest.resourceSetId =
+                        sd.resourceEntityType + "::" + sd.resourceEntityId + "::" + sd.resourceEntityVersion;
             }
 
         } else if (sd != null && (sd.resourceEntityVersion == null || sd.resourceEntityVersion.isEmpty())) {
-            String resourceUnion = null;
+            releaseRequest.resourceUnionId = null;
 
             if (rr != null && rr.endPointPosition != null && !rr.endPointPosition.isEmpty()) {
-                resourceUnion = sd.resourceEntityType + "::" + sd.resourceEntityId + "::" + rr.endPointPosition;
+                releaseRequest.resourceUnionId =
+                        sd.resourceEntityType + "::" + sd.resourceEntityId + "::" + rr.endPointPosition;
             } else {
-                resourceUnion = sd.resourceEntityType + "::" + sd.resourceEntityId;
+                releaseRequest.resourceUnionId = sd.resourceEntityType + "::" + sd.resourceEntityId;
             }
+        }
 
-            if (rt != null && rt.resourceTargetId != null && rt.resourceTargetType != null) {
-                String assetId = rt.resourceTargetType + "::" + rt.resourceTargetId;
-                log.info(START_RELEASE_FOR_TARGET, resourceUnion, assetId);
-                resourceManager.releaseResourceUnion(resourceUnion, assetId);
-            } else {
-                log.info(START_RELEASE, resourceUnion);
-                resourceManager.releaseResourceUnion(resourceUnion);
-            }
+        if (rt != null && rt.resourceTargetId != null && rt.resourceTargetType != null) {
+            releaseRequest.assetId = rt.resourceTargetType + "::" + rt.resourceTargetId;
+        }
+
+        if (rr != null) {
+            releaseRequest.resourceName = rr.resourceName;
+            releaseRequest.releaseNumbers =
+                    StrUtil.listInt(rr.rangeReleaseNumbers, "Invalid value for range-release-numbers");
+            releaseRequest.releaseAmount = rr.limitReleaseAmount;
         }
 
+        log.info("Releasing resources:");
+        StrUtil.info(log, releaseRequest);
+
+        resourceManager.releaseResources(releaseRequest);
+
         return AllocationStatus.Success;
     }
 
@@ -389,7 +395,7 @@ public class ResourceAllocator implements SvcLogicResource {
     private ResourceEntity getResourceEntityData(SvcLogicContext ctx) throws SvcLogicException {
         ResourceEntity sd = new ResourceEntity();
         sd.resourceEntityId = getParam(ctx,
-                new String[] {SERVICE_INSTANCE_ID, RESERVATION_ENTITY_ID, RESOURCE_ENTITY_ID}, true, null);
+                new String[] {"service-instance-id", "resource-entity-id", "reservation-entity-id"}, true, null);
         sd.resourceEntityType =
                 getParam(ctx, new String[] {"reservation-entity-type", "resource-entity-type"}, true, null);
         sd.resourceEntityVersion =
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 f4109a1de..d188429ea 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
@@ -39,6 +39,7 @@ import org.onap.ccsdk.sli.adaptors.rm.data.MultiResourceAllocationOutcome;
 import org.onap.ccsdk.sli.adaptors.rm.data.RangeAllocationItem;
 import org.onap.ccsdk.sli.adaptors.rm.data.RangeAllocationOutcome;
 import org.onap.ccsdk.sli.adaptors.rm.data.RangeResource;
+import org.onap.ccsdk.sli.adaptors.rm.data.ReleaseRequest;
 import org.onap.ccsdk.sli.adaptors.rm.data.Resource;
 import org.onap.ccsdk.sli.adaptors.util.str.StrUtil;
 import org.slf4j.Logger;
@@ -83,7 +84,7 @@ public class EndPointAllocatorImpl implements EndPointAllocator {
                 if (!allgood) {
                     String resourceSetId = resourceEntity.resourceEntityType + "::" + resourceEntity.resourceEntityId
                             + "::" + resourceEntity.resourceEntityVersion;
-                    resourceManager.releaseResourceSet(resourceSetId);
+                    resourceManager.releaseResources(ReleaseRequest.resourceSet(resourceSetId));
                 }
             }
         }
diff --git a/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/comp/ResourceRequest.java b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/comp/ResourceRequest.java
index c870bc414..bc05af657 100644
--- a/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/comp/ResourceRequest.java
+++ b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/comp/ResourceRequest.java
@@ -48,4 +48,6 @@ public class ResourceRequest {
     public String resourceShareGroupFilter;
     public String resourceTargetTypeFilter;
     public String resourceTargetIdFilter;
+    public String rangeReleaseNumbers;
+    public int limitReleaseAmount;
 }
diff --git a/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/comp/ReleaseFunction.java b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/comp/ReleaseFunction.java
index b26c54cfa..b466b164b 100644
--- a/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/comp/ReleaseFunction.java
+++ b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/comp/ReleaseFunction.java
@@ -9,9 +9,9 @@
  * 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.
@@ -22,6 +22,7 @@
 
 package org.onap.ccsdk.sli.adaptors.rm.comp;
 
+import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Iterator;
 import java.util.List;
@@ -30,7 +31,11 @@ import org.onap.ccsdk.sli.adaptors.lock.comp.ResourceLockedException;
 import org.onap.ccsdk.sli.adaptors.lock.comp.SynchronizedFunction;
 import org.onap.ccsdk.sli.adaptors.rm.dao.ResourceDao;
 import org.onap.ccsdk.sli.adaptors.rm.data.AllocationItem;
+import org.onap.ccsdk.sli.adaptors.rm.data.LimitAllocationItem;
+import org.onap.ccsdk.sli.adaptors.rm.data.RangeAllocationItem;
+import org.onap.ccsdk.sli.adaptors.rm.data.ReleaseRequest;
 import org.onap.ccsdk.sli.adaptors.rm.data.Resource;
+import org.onap.ccsdk.sli.adaptors.rm.data.ResourceType;
 import org.onap.ccsdk.sli.adaptors.rm.util.ResourceUtil;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -42,42 +47,93 @@ class ReleaseFunction extends SynchronizedFunction {
 
     private ResourceDao resourceDao;
 
-    private String resourceSetId;
-    private String resourceUnionId;
-    private String assetId;
+    private ReleaseRequest releaseRequest;
 
-    public ReleaseFunction(LockHelper lockHelper, ResourceDao resourceDao, String resourceSetId, String resourceUnionId,
-            String assetId, Collection<String> lockNames, int lockTimeout) {
+    public ReleaseFunction(LockHelper lockHelper, ResourceDao resourceDao, ReleaseRequest releaseRequest,
+            Collection<String> lockNames, int lockTimeout) {
         super(lockHelper, lockNames, lockTimeout);
         this.resourceDao = resourceDao;
-        this.resourceSetId = resourceSetId;
-        this.resourceUnionId = resourceUnionId;
-        this.assetId = assetId;
+        this.releaseRequest = releaseRequest;
     }
 
     @Override
     public void _exec() throws ResourceLockedException {
-        List<Resource> resourceList = assetId != null
-                ? (resourceSetId != null ? resourceDao.getResourceSetForAsset(resourceSetId, assetId)
-                        : resourceDao.getResourceUnionForAsset(resourceUnionId, assetId))
-                : (resourceSetId != null ? resourceDao.getResourceSet(resourceSetId)
-                        : resourceDao.getResourceUnion(resourceUnionId));
+        List<Resource> resourceList = new ArrayList<>();
+        if (releaseRequest.assetId != null && releaseRequest.resourceName != null) {
+            Resource r = resourceDao.getResource(releaseRequest.assetId, releaseRequest.resourceName);
+            if (r != null) {
+                resourceList.add(r);
+            }
+        } else if (releaseRequest.assetId != null) {
+            if (releaseRequest.resourceSetId != null) {
+                resourceList = resourceDao.getResourceSetForAsset(releaseRequest.resourceSetId, releaseRequest.assetId);
+            } else {
+                resourceList =
+                        resourceDao.getResourceUnionForAsset(releaseRequest.resourceUnionId, releaseRequest.assetId);
+            }
+        } else {
+            if (releaseRequest.resourceSetId != null) {
+                resourceList = resourceDao.getResourceSet(releaseRequest.resourceSetId);
+            } else {
+                resourceList = resourceDao.getResourceUnion(releaseRequest.resourceUnionId);
+            }
+        }
+
         for (Resource r : resourceList) {
             boolean updated = false;
             if (r.allocationItems != null) {
                 Iterator<AllocationItem> i = r.allocationItems.iterator();
                 while (i.hasNext()) {
                     AllocationItem ai = i.next();
-                    if (resourceSetId != null) {
-                        if (resourceSetId.equals(ai.resourceSetId)) {
-                            i.remove();
+                    if (releaseRequest.resourceSetId != null) {
+
+                        if (releaseRequest.resourceSetId.equals(ai.resourceSetId)) {
+                            if (r.resourceType == ResourceType.Limit) {
+                                LimitAllocationItem lai = (LimitAllocationItem) ai;
+                                if (releaseRequest.releaseAmount > 0 && releaseRequest.releaseAmount < lai.used) {
+                                    lai.used -= releaseRequest.releaseAmount;
+                                } else {
+                                    i.remove();
+                                }
+                            } else if (r.resourceType == ResourceType.Range) {
+                                RangeAllocationItem rai = (RangeAllocationItem) ai;
+                                if (releaseRequest.releaseNumbers != null && !releaseRequest.releaseNumbers.isEmpty()) {
+                                    rai.used.removeAll(releaseRequest.releaseNumbers);
+                                    if (rai.used.isEmpty()) {
+                                        i.remove();
+                                    }
+                                } else {
+                                    i.remove();
+                                }
+                            } else {
+                                i.remove();
+                            }
                             updated = true;
                         }
 
-                    } else if (resourceUnionId != null) {
+                    } else if (releaseRequest.resourceUnionId != null) {
 
-                        if (resourceUnionId.equals(ai.resourceUnionId)) {
-                            i.remove();
+                        if (releaseRequest.resourceUnionId.equals(ai.resourceUnionId)) {
+                            if (r.resourceType == ResourceType.Limit) {
+                                LimitAllocationItem lai = (LimitAllocationItem) ai;
+                                if (releaseRequest.releaseAmount > 0 && releaseRequest.releaseAmount < lai.used) {
+                                    lai.used -= releaseRequest.releaseAmount;
+                                } else {
+                                    i.remove();
+                                }
+                            } else if (r.resourceType == ResourceType.Range) {
+                                RangeAllocationItem rai = (RangeAllocationItem) ai;
+                                if (releaseRequest.releaseNumbers != null && !releaseRequest.releaseNumbers.isEmpty()) {
+                                    rai.used.removeAll(releaseRequest.releaseNumbers);
+                                    if (rai.used.isEmpty()) {
+                                        i.remove();
+                                    }
+                                } else {
+                                    i.remove();
+                                }
+                            } else {
+                                i.remove();
+                            }
                             updated = true;
                         }
 
diff --git a/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/comp/ResourceManager.java b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/comp/ResourceManager.java
index 68d251587..9dd54cc39 100644
--- a/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/comp/ResourceManager.java
+++ b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/comp/ResourceManager.java
@@ -24,6 +24,7 @@ package org.onap.ccsdk.sli.adaptors.rm.comp;
 import java.util.List;
 import org.onap.ccsdk.sli.adaptors.rm.data.AllocationOutcome;
 import org.onap.ccsdk.sli.adaptors.rm.data.AllocationRequest;
+import org.onap.ccsdk.sli.adaptors.rm.data.ReleaseRequest;
 import org.onap.ccsdk.sli.adaptors.rm.data.Resource;
 
 public interface ResourceManager {
@@ -34,13 +35,7 @@ public interface ResourceManager {
 
     AllocationOutcome allocateResources(AllocationRequest allocationRequest);
 
-    void releaseResourceSet(String resourceSetId);
-
-    void releaseResourceUnion(String resourceUnionId);
-
-    void releaseResourceSet(String resourceSetId, String assetId);
-
-    void releaseResourceUnion(String resourceUnionId, String assetId);
+    void releaseResources(ReleaseRequest releaseRequest);
 
     Resource queryResource(String resourceName, String assetId, String resourceUnionFilter,
             String resourceShareGroupFilter);
diff --git a/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/comp/ResourceManagerImpl.java b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/comp/ResourceManagerImpl.java
index c4d53ce70..83da27071 100644
--- a/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/comp/ResourceManagerImpl.java
+++ b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/comp/ResourceManagerImpl.java
@@ -28,6 +28,7 @@ import org.onap.ccsdk.sli.adaptors.lock.comp.LockHelper;
 import org.onap.ccsdk.sli.adaptors.rm.dao.ResourceDao;
 import org.onap.ccsdk.sli.adaptors.rm.data.AllocationOutcome;
 import org.onap.ccsdk.sli.adaptors.rm.data.AllocationRequest;
+import org.onap.ccsdk.sli.adaptors.rm.data.ReleaseRequest;
 import org.onap.ccsdk.sli.adaptors.rm.data.Resource;
 import org.onap.ccsdk.sli.adaptors.rm.util.ResourceUtil;
 import org.onap.ccsdk.sli.adaptors.util.str.StrUtil;
@@ -80,54 +81,31 @@ public class ResourceManagerImpl implements ResourceManager {
     }
 
     @Override
-    public void releaseResourceSet(String resourceSetId) {
-        List<Resource> resourceList = resourceDao.getResourceSet(resourceSetId);
-        if (resourceList == null || resourceList.isEmpty()) {
+    public void releaseResources(ReleaseRequest releaseRequest) {
+        if (releaseRequest.resourceSetId == null && releaseRequest.resourceUnionId == null) {
             return;
         }
 
-        Set<String> lockNames = getLockNames(resourceList);
-        ReleaseFunction releaseFunction =
-                new ReleaseFunction(lockHelper, resourceDao, resourceSetId, null, null, lockNames, lockTimeout);
-        releaseFunction.exec();
-    }
-
-    @Override
-    public void releaseResourceUnion(String resourceUnionId) {
-        List<Resource> resourceList = resourceDao.getResourceUnion(resourceUnionId);
-        if (resourceList == null || resourceList.isEmpty()) {
-            return;
-        }
-
-        Set<String> lockNames = getLockNames(resourceList);
-        ReleaseFunction releaseFunction =
-                new ReleaseFunction(lockHelper, resourceDao, null, resourceUnionId, null, lockNames, lockTimeout);
-        releaseFunction.exec();
-    }
-
-    @Override
-    public void releaseResourceSet(String resourceSetId, String assetId) {
-        List<Resource> resourceList = resourceDao.getResourceSetForAsset(resourceSetId, assetId);
-        if (resourceList == null || resourceList.isEmpty()) {
-            return;
-        }
-
-        Set<String> lockNames = getLockNames(resourceList);
-        ReleaseFunction releaseFunction =
-                new ReleaseFunction(lockHelper, resourceDao, resourceSetId, null, assetId, lockNames, lockTimeout);
-        releaseFunction.exec();
-    }
-
-    @Override
-    public void releaseResourceUnion(String resourceUnionId, String assetId) {
-        List<Resource> resourceList = resourceDao.getResourceUnionForAsset(resourceUnionId, assetId);
-        if (resourceList == null || resourceList.isEmpty()) {
-            return;
+        Set<String> lockNames = new HashSet<>();
+        if (releaseRequest.assetId != null) {
+            lockNames.add(releaseRequest.assetId);
+        } else {
+            List<Resource> resourceList = null;
+            if (releaseRequest.resourceSetId != null) {
+                resourceList = resourceDao.getResourceSet(releaseRequest.resourceSetId);
+            } else {
+                resourceList = resourceDao.getResourceUnion(releaseRequest.resourceUnionId);
+            }
+
+            if (resourceList == null || resourceList.isEmpty()) {
+                return;
+            }
+
+            lockNames = getLockNames(resourceList);
         }
 
-        Set<String> lockNames = getLockNames(resourceList);
         ReleaseFunction releaseFunction =
-                new ReleaseFunction(lockHelper, resourceDao, null, resourceUnionId, assetId, lockNames, lockTimeout);
+                new ReleaseFunction(lockHelper, resourceDao, releaseRequest, lockNames, lockTimeout);
         releaseFunction.exec();
     }
 
diff --git a/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/data/ReleaseRequest.java b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/data/ReleaseRequest.java
new file mode 100644
index 000000000..dba6a172f
--- /dev/null
+++ b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/rm/data/ReleaseRequest.java
@@ -0,0 +1,46 @@
+/*-
+ * ============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;
+
+import java.util.Set;
+
+public class ReleaseRequest {
+
+    public String resourceUnionId = null;
+    public String resourceSetId = null;
+    public String assetId = null;
+    public String resourceName = null;
+    public int releaseAmount = 0;
+    public Set<Integer> releaseNumbers = null;
+
+    public static ReleaseRequest resourceSet(String resourceSetId) {
+        ReleaseRequest rr = new ReleaseRequest();
+        rr.resourceSetId = resourceSetId;
+        return rr;
+    }
+
+    public static ReleaseRequest resourceUnion(String resourceUnionId) {
+        ReleaseRequest rr = new ReleaseRequest();
+        rr.resourceUnionId = resourceUnionId;
+        return rr;
+    }
+}