linstor: Outline get storagepools from resourcegroup into function

Author: rp-

plugins/storage/volume/linstor/src/main/java/com/cloud/hypervisor/kvm/storage/LinstorStorageAdaptor.java

@@ -47,7 +47,6 @@
 import com.linbit.linstor.api.model.ProviderKind;
 import com.linbit.linstor.api.model.ResourceDefinition;
 import com.linbit.linstor.api.model.ResourceDefinitionModify;
-import com.linbit.linstor.api.model.ResourceGroup;
 import com.linbit.linstor.api.model.ResourceGroupSpawn;
 import com.linbit.linstor.api.model.ResourceMakeAvailable;
 import com.linbit.linstor.api.model.ResourceWithVolumes;
@@ -505,25 +504,7 @@ public long getAvailable(LinstorStoragePool pool) {
         DevelopersApi linstorApi = getLinstorAPI(pool);
         final String rscGroupName = pool.getResourceGroup();
         try {
-            List<ResourceGroup> rscGrps = linstorApi.resourceGroupList(
-                Collections.singletonList(rscGroupName),
-                null,
-                null,
-                null);
-
-            if (rscGrps.isEmpty()) {
-                final String errMsg = String.format("Linstor: Resource group '%s' not found", rscGroupName);
-                s_logger.error(errMsg);
-                throw new CloudRuntimeException(errMsg);
-            }
-
-            List<StoragePool> storagePools = linstorApi.viewStoragePools(
-                Collections.emptyList(),
-                rscGrps.get(0).getSelectFilter().getStoragePoolList(),
-                null,
-                null,
-                null
-            );
+            List<StoragePool> storagePools = LinstorUtil.getRscGroupStoragePools(linstorApi, rscGroupName);
 
             final long free = storagePools.stream()
                 .filter(sp -> sp.getProviderKind() != ProviderKind.DISKLESS)
@@ -541,25 +522,7 @@ public long getUsed(LinstorStoragePool pool) {
         DevelopersApi linstorApi = getLinstorAPI(pool);
         final String rscGroupName = pool.getResourceGroup();
         try {
-            List<ResourceGroup> rscGrps = linstorApi.resourceGroupList(
-                Collections.singletonList(rscGroupName),
-                null,
-                null,
-                null);
-
-            if (rscGrps.isEmpty()) {
-                final String errMsg = String.format("Linstor: Resource group '%s' not found", rscGroupName);
-                s_logger.error(errMsg);
-                throw new CloudRuntimeException(errMsg);
-            }
-
-            List<StoragePool> storagePools = linstorApi.viewStoragePools(
-                Collections.emptyList(),
-                rscGrps.get(0).getSelectFilter().getStoragePoolList(),
-                null,
-                null,
-                null
-            );
+            List<StoragePool> storagePools = LinstorUtil.getRscGroupStoragePools(linstorApi, rscGroupName);
 
             final long used = storagePools.stream()
                 .filter(sp -> sp.getProviderKind() != ProviderKind.DISKLESS)

plugins/storage/volume/linstor/src/main/java/org/apache/cloudstack/storage/datastore/util/LinstorUtil.java

@@ -136,28 +136,33 @@ public static String getSnapshotPath(com.linbit.linstor.api.model.StoragePool sp
         return path;
     }
 
-    public static long getCapacityBytes(String linstorUrl, String rscGroupName) {
-        DevelopersApi linstorApi = getLinstorAPI(linstorUrl);
-        try {
-            List<ResourceGroup> rscGrps = linstorApi.resourceGroupList(
+    public static List<StoragePool> getRscGroupStoragePools(DevelopersApi api, String rscGroupName)
+            throws ApiException {
+        List<ResourceGroup> rscGrps = api.resourceGroupList(
                 Collections.singletonList(rscGroupName),
                 null,
                 null,
                 null);
 
-            if (rscGrps.isEmpty()) {
-                final String errMsg = String.format("Linstor: Resource group '%s' not found", rscGroupName);
-                s_logger.error(errMsg);
-                throw new CloudRuntimeException(errMsg);
-            }
+        if (rscGrps.isEmpty()) {
+            final String errMsg = String.format("Linstor: Resource group '%s' not found", rscGroupName);
+            s_logger.error(errMsg);
+            throw new CloudRuntimeException(errMsg);
+        }
 
-            List<StoragePool> storagePools = linstorApi.viewStoragePools(
+        return api.viewStoragePools(
                 Collections.emptyList(),
                 rscGrps.get(0).getSelectFilter().getStoragePoolList(),
                 null,
                 null,
                 null
-            );
+        );
+    }
+
+    public static long getCapacityBytes(String linstorUrl, String rscGroupName) {
+        DevelopersApi linstorApi = getLinstorAPI(linstorUrl);
+        try {
+            List<StoragePool> storagePools = getRscGroupStoragePools(linstorApi, rscGroupName);
 
             return storagePools.stream()
                 .filter(sp -> sp.getProviderKind() != ProviderKind.DISKLESS)