AddFenceAgentCommand.patch

diff --git a/backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/AddFenceAgentCommand.java b/backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/AddFenceAgentCommand.java
index ed54ded..3c634f0 100644
--- a/backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/AddFenceAgentCommand.java
+++ b/backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/AddFenceAgentCommand.java
@@ -1,13 +1,28 @@
 package org.ovirt.engine.core.bll;
 
+import javax.inject.Inject;
 import org.ovirt.engine.core.bll.context.CommandContext;
 import org.ovirt.engine.core.common.action.FenceAgentCommandParameterBase;
+import org.ovirt.engine.core.common.businessentities.Cluster;
+import org.ovirt.engine.core.common.businessentities.VDS;
 import org.ovirt.engine.core.common.businessentities.pm.FenceAgent;
+import org.ovirt.engine.core.common.config.ConfigValues;
 import org.ovirt.engine.core.common.errors.EngineMessage;
 import org.ovirt.engine.core.compat.Guid;
+import org.ovirt.engine.core.compat.Regex;
+import org.ovirt.engine.core.dao.ClusterDao;
+import org.ovirt.engine.core.dao.VdsDao;
+import org.ovirt.engine.core.utils.pm.FenceConfigHelper;
+
 
 public class AddFenceAgentCommand<T extends FenceAgentCommandParameterBase> extends FenceAgentCommandBase {
 
+    @Inject
+    private VdsDao vdsDao;
+
+    @Inject
+    private ClusterDao clusterDao;
+
     public AddFenceAgentCommand(FenceAgentCommandParameterBase parameters, CommandContext cmdContext) {
         super(parameters, cmdContext);
     }
@@ -18,6 +33,7 @@ public class AddFenceAgentCommand<T extends FenceAgentCommandParameterBase> exte
 
     @Override
     protected boolean validate() {
+        String clusterCompatibilityVersion;
         if (getParameters() == null
                 || getParameters().getAgent() == null
                 || getParameters().getAgent().getIp() == null
@@ -27,6 +43,18 @@ public class AddFenceAgentCommand<T extends FenceAgentCommandParameterBase> exte
                 || getParameters().getAgent().getUser() == null) {
             return failValidation(EngineMessage.VDS_ADD_FENCE_AGENT_MANDATORY_PARAMETERS_MISSING);
         }
+
+        Guid vdsId = getParameters().getAgent().getHostId();
+        VDS vds = vdsDao.get(vdsId);
+        Guid vdsClusterId = vds.getClusterId();
+        Cluster cluster = clusterDao.get(vdsClusterId);
+        clusterCompatibilityVersion = cluster.getCompatibilityVersion().toString();
+
+        if (!Regex.isMatch(FenceConfigHelper.getFenceConfigurationValue(ConfigValues.VdsFenceType.name(),
+                clusterCompatibilityVersion), String.format("(,|^)%1$s(,|$)", getParameters().getAgent().getType()))) {
+            return failValidation(EngineMessage.ACTION_TYPE_FAILED_AGENT_NOT_SUPPORTED);
+        }
+
         return super.validate();
     }