CLOUDSTACK-5432: potential bugs in case of stop mgt server while

template is downloading, template_store_ref has leftover not in ready
state, when create vm from that template, the code doesn't check either
zone id, nor template_store_ref state.

Conflicts:
	engine/orchestration/src/org/apache/cloudstack/engine/orchestration/VolumeOrchestrator.java

engine/api/src/org/apache/cloudstack/engine/subsystem/api/storage/TemplateDataFactory.java

@@ -25,6 +25,8 @@ import com.cloud.storage.DataStoreRole;
 public interface TemplateDataFactory {
     TemplateInfo getTemplate(long templateId, DataStore store);
 
+    TemplateInfo getReadyTemplateOnImageStore(long templateId, Long zoneId);
+
     TemplateInfo getTemplate(DataObject obj, DataStore store);
 
     TemplateInfo getTemplate(long templateId, DataStoreRole storeRole);

engine/orchestration/src/org/apache/cloudstack/engine/orchestration/VolumeOrchestrator.java

@@ -1126,7 +1126,12 @@ public class VolumeOrchestrator extends ManagerBase implements VolumeOrchestrati
 
                 future = volService.createVolumeAsync(volume, destPool);
             } else {
-                TemplateInfo templ = tmplFactory.getTemplate(templateId, DataStoreRole.Image);
+    
+                TemplateInfo templ = tmplFactory.getReadyTemplateOnImageStore(templateId, dest.getDataCenter().getId());
+                if (templ == null) {
+                    s_logger.debug("can't find ready template: " + templateId + " for data center " + dest.getDataCenter().getId());
+                    throw new CloudRuntimeException("can't find ready template: " + templateId + " for data center " + dest.getDataCenter().getId());
+                }
 
                 PrimaryDataStore primaryDataStore = (PrimaryDataStore)destPool;
 

engine/schema/src/org/apache/cloudstack/storage/datastore/db/TemplateDataStoreDao.java

@@ -65,6 +65,8 @@ public interface TemplateDataStoreDao extends GenericDao<TemplateDataStoreVO, Lo
 
     List<TemplateDataStoreVO> listByTemplate(long templateId);
 
+    TemplateDataStoreVO findByTemplateZoneReady(long templateId, Long zoneId);
+
     void duplicateCacheRecordsOnRegionStore(long storeId);
 
     TemplateDataStoreVO findReadyOnCache(long templateId);

engine/storage/image/src/org/apache/cloudstack/storage/image/TemplateDataFactoryImpl.java

@@ -23,6 +23,7 @@ import java.util.List;
 
 import javax.inject.Inject;
 
+import com.cloud.utils.exception.CloudRuntimeException;
 import org.apache.log4j.Logger;
 import org.springframework.stereotype.Component;
 
@@ -106,6 +107,17 @@ public class TemplateDataFactoryImpl implements TemplateDataFactory {
         return this.getTemplate(templateId, store);
     }
 
+    @Override
+    public TemplateInfo getReadyTemplateOnImageStore(long templateId, Long zoneId) {
+        TemplateDataStoreVO tmplStore = templateStoreDao.findByTemplateZoneReady(templateId, zoneId);
+        if (tmplStore != null) {
+            DataStore store = storeMgr.getDataStore(tmplStore.getDataStoreId(), DataStoreRole.Image);
+            return this.getTemplate(templateId, store);
+        } else {
+            return null;
+        }
+    }
+
     @Override
     public TemplateInfo getTemplate(DataObject obj, DataStore store) {
         TemplateObject tmpObj = (TemplateObject)this.getTemplate(obj.getId(), store);

engine/storage/src/org/apache/cloudstack/storage/image/db/TemplateDataStoreDaoImpl.java

@@ -400,6 +400,22 @@ public class TemplateDataStoreDaoImpl extends GenericDaoBase<TemplateDataStoreVO
         return null;
     }
 
+    @Override
+    public TemplateDataStoreVO findByTemplateZoneReady(long templateId, Long zoneId) {
+        List<DataStore> imgStores = null;
+        imgStores = _storeMgr.getImageStoresByScope(new ZoneScope(zoneId));
+        if (imgStores != null) {
+            Collections.shuffle(imgStores);
+            for (DataStore store : imgStores) {
+                List<TemplateDataStoreVO> sRes = listByTemplateStoreStatus(templateId, store.getId(), State.Ready);
+                if (sRes != null && sRes.size() > 0) {
+                    return sRes.get(0);
+                }
+            }
+        }
+        return null;
+    }
+
     /**
      * Duplicate all image cache store entries
      */