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From h...@apache.org
Subject [11/50] [abbrv] Clean up ApiServer, ApiServlet and ApiDispatcher flow to handle various CloudRuntimeException and CloudException in one place, and Introduced ApiErrorCode to handle CloudStack API error code to standard Http code mapping.
Date Mon, 21 Jan 2013 11:18:50 GMT
http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/blob/3dabd5fb/plugins/network-elements/f5/src/com/cloud/api/commands/DeleteExternalLoadBalancerCmd.java
----------------------------------------------------------------------
diff --git a/plugins/network-elements/f5/src/com/cloud/api/commands/DeleteExternalLoadBalancerCmd.java b/plugins/network-elements/f5/src/com/cloud/api/commands/DeleteExternalLoadBalancerCmd.java
index d301571..29eaa0c 100644
--- a/plugins/network-elements/f5/src/com/cloud/api/commands/DeleteExternalLoadBalancerCmd.java
+++ b/plugins/network-elements/f5/src/com/cloud/api/commands/DeleteExternalLoadBalancerCmd.java
@@ -32,19 +32,19 @@ import com.cloud.user.Account;
 public class DeleteExternalLoadBalancerCmd extends BaseCmd {
     public static final Logger s_logger = Logger.getLogger(DeleteExternalLoadBalancerCmd.class.getName());
     private static final String s_name = "deleteexternalloadbalancerresponse";
-    
+
     /////////////////////////////////////////////////////
     //////////////// API parameters /////////////////////
     /////////////////////////////////////////////////////
-    
+
     @Parameter(name=ApiConstants.ID, type=CommandType.UUID, entityType = HostResponse.class,
             required = true, description="Id of the external loadbalancer appliance.")
     private Long id;
-    
+
     ///////////////////////////////////////////////////
     /////////////////// Accessors ///////////////////////
     /////////////////////////////////////////////////////
-     
+
     public Long getId() {
         return id;
     }
@@ -60,12 +60,12 @@ public class DeleteExternalLoadBalancerCmd extends BaseCmd {
     public String getCommandName() {
         return s_name;
     }
-    
+
     @Override
     public long getEntityOwnerId() {
         return Account.ACCOUNT_ID_SYSTEM;
     }
-     
+
     @Override
     public void execute(){
         try {
@@ -75,10 +75,10 @@ public class DeleteExternalLoadBalancerCmd extends BaseCmd {
                 response.setResponseName(getCommandName());
                 this.setResponseObject(response);
             } else {
-                throw new ServerApiException(BaseCmd.INTERNAL_ERROR, "Failed to delete external load balancer.");
+                throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to delete external load balancer.");
             }
         } catch (InvalidParameterValueException e) {
-            throw new ServerApiException(BaseCmd.PARAM_ERROR, "Failed to delete external load balancer.");
+            throw new ServerApiException(ApiErrorCode.PARAM_ERROR, "Failed to delete external load balancer.");
         }
     }
 }

http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/blob/3dabd5fb/plugins/network-elements/f5/src/com/cloud/api/commands/DeleteF5LoadBalancerCmd.java
----------------------------------------------------------------------
diff --git a/plugins/network-elements/f5/src/com/cloud/api/commands/DeleteF5LoadBalancerCmd.java b/plugins/network-elements/f5/src/com/cloud/api/commands/DeleteF5LoadBalancerCmd.java
index 8b53d70..c1ab22d 100644
--- a/plugins/network-elements/f5/src/com/cloud/api/commands/DeleteF5LoadBalancerCmd.java
+++ b/plugins/network-elements/f5/src/com/cloud/api/commands/DeleteF5LoadBalancerCmd.java
@@ -22,6 +22,7 @@ import org.apache.log4j.Logger;
 import org.apache.cloudstack.api.BaseAsyncCmd;
 
 import org.apache.cloudstack.api.ApiConstants;
+import org.apache.cloudstack.api.ApiErrorCode;
 import org.apache.cloudstack.api.BaseCmd;
 import org.apache.cloudstack.api.APICommand;
 import org.apache.cloudstack.api.Parameter;
@@ -74,12 +75,12 @@ public class DeleteF5LoadBalancerCmd extends BaseAsyncCmd {
                 response.setResponseName(getCommandName());
                 this.setResponseObject(response);
             } else {
-                throw new ServerApiException(BaseCmd.INTERNAL_ERROR, "Failed to delete F5 load balancer.");
+                throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to delete F5 load balancer.");
             }
         }  catch (InvalidParameterValueException invalidParamExcp) {
-            throw new ServerApiException(BaseCmd.PARAM_ERROR, invalidParamExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.PARAM_ERROR, invalidParamExcp.getMessage());
         } catch (CloudRuntimeException runtimeExcp) {
-            throw new ServerApiException(BaseCmd.INTERNAL_ERROR, runtimeExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, runtimeExcp.getMessage());
         }
     }
 

http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/blob/3dabd5fb/plugins/network-elements/f5/src/com/cloud/api/commands/ListF5LoadBalancerNetworksCmd.java
----------------------------------------------------------------------
diff --git a/plugins/network-elements/f5/src/com/cloud/api/commands/ListF5LoadBalancerNetworksCmd.java b/plugins/network-elements/f5/src/com/cloud/api/commands/ListF5LoadBalancerNetworksCmd.java
index bf1164b..1d276ce 100644
--- a/plugins/network-elements/f5/src/com/cloud/api/commands/ListF5LoadBalancerNetworksCmd.java
+++ b/plugins/network-elements/f5/src/com/cloud/api/commands/ListF5LoadBalancerNetworksCmd.java
@@ -23,6 +23,7 @@ import java.util.List;
 import org.apache.log4j.Logger;
 
 import org.apache.cloudstack.api.ApiConstants;
+import org.apache.cloudstack.api.ApiErrorCode;
 import org.apache.cloudstack.api.BaseCmd;
 import org.apache.cloudstack.api.BaseListCmd;
 import org.apache.cloudstack.api.APICommand;
@@ -86,9 +87,9 @@ public class ListF5LoadBalancerNetworksCmd extends BaseListCmd {
             response.setResponseName(getCommandName());
             this.setResponseObject(response);
         }  catch (InvalidParameterValueException invalidParamExcp) {
-            throw new ServerApiException(BaseCmd.PARAM_ERROR, invalidParamExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.PARAM_ERROR, invalidParamExcp.getMessage());
         } catch (CloudRuntimeException runtimeExcp) {
-            throw new ServerApiException(BaseCmd.INTERNAL_ERROR, runtimeExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, runtimeExcp.getMessage());
         }
     }
 

http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/blob/3dabd5fb/plugins/network-elements/f5/src/com/cloud/api/commands/ListF5LoadBalancersCmd.java
----------------------------------------------------------------------
diff --git a/plugins/network-elements/f5/src/com/cloud/api/commands/ListF5LoadBalancersCmd.java b/plugins/network-elements/f5/src/com/cloud/api/commands/ListF5LoadBalancersCmd.java
index c03d55a..deaa275 100644
--- a/plugins/network-elements/f5/src/com/cloud/api/commands/ListF5LoadBalancersCmd.java
+++ b/plugins/network-elements/f5/src/com/cloud/api/commands/ListF5LoadBalancersCmd.java
@@ -88,9 +88,9 @@ public class ListF5LoadBalancersCmd extends BaseListCmd {
             response.setResponseName(getCommandName());
             this.setResponseObject(response);
         }  catch (InvalidParameterValueException invalidParamExcp) {
-            throw new ServerApiException(BaseCmd.PARAM_ERROR, invalidParamExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.PARAM_ERROR, invalidParamExcp.getMessage());
         } catch (CloudRuntimeException runtimeExcp) {
-            throw new ServerApiException(BaseCmd.INTERNAL_ERROR, runtimeExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, runtimeExcp.getMessage());
         }
     }
 

http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/blob/3dabd5fb/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/AddExternalFirewallCmd.java
----------------------------------------------------------------------
diff --git a/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/AddExternalFirewallCmd.java b/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/AddExternalFirewallCmd.java
index cda27fb..deaa612 100644
--- a/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/AddExternalFirewallCmd.java
+++ b/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/AddExternalFirewallCmd.java
@@ -11,7 +11,7 @@
 // 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 
+// KIND, either express or implied.  See the License for the
 // specific language governing permissions and limitations
 // under the License.
 package com.cloud.api.commands;
@@ -20,6 +20,7 @@ import org.apache.cloudstack.api.response.ZoneResponse;
 import org.apache.log4j.Logger;
 
 import org.apache.cloudstack.api.ApiConstants;
+import org.apache.cloudstack.api.ApiErrorCode;
 import org.apache.cloudstack.api.BaseCmd;
 import org.apache.cloudstack.api.APICommand;
 import org.apache.cloudstack.api.Parameter;
@@ -34,30 +35,30 @@ import com.cloud.utils.exception.CloudRuntimeException;
 
 @APICommand(name = "addExternalFirewall", description="Adds an external firewall appliance", responseObject = ExternalFirewallResponse.class)
 public class AddExternalFirewallCmd extends BaseCmd {
-    public static final Logger s_logger = Logger.getLogger(AddExternalFirewallCmd.class.getName());    
-    private static final String s_name = "addexternalfirewallresponse";    
-    
+    public static final Logger s_logger = Logger.getLogger(AddExternalFirewallCmd.class.getName());
+    private static final String s_name = "addexternalfirewallresponse";
+
     /////////////////////////////////////////////////////
     //////////////// API parameters /////////////////////
     /////////////////////////////////////////////////////
-    
+
     @Parameter(name=ApiConstants.ZONE_ID, type=CommandType.UUID, entityType = ZoneResponse.class,
             required = true, description="Zone in which to add the external firewall appliance.")
     private Long zoneId;
 
     @Parameter(name=ApiConstants.URL, type=CommandType.STRING, required = true, description="URL of the external firewall appliance.")
-    private String url;     
-    
+    private String url;
+
     @Parameter(name=ApiConstants.USERNAME, type=CommandType.STRING, required = true, description="Username of the external firewall appliance.")
-    private String username;     
-    
+    private String username;
+
     @Parameter(name=ApiConstants.PASSWORD, type=CommandType.STRING, required = true, description="Password of the external firewall appliance.")
     private String password;
-    
+
     ///////////////////////////////////////////////////
     /////////////////// Accessors ///////////////////////
     /////////////////////////////////////////////////////
-     
+
     public Long getZoneId() {
         return zoneId;
     }
@@ -65,15 +66,15 @@ public class AddExternalFirewallCmd extends BaseCmd {
     public String getUrl() {
         return url;
     }
-    
+
     public String getUsername() {
         return username;
     }
-    
+
     public String getPassword() {
         return password;
     }
-    
+
 
     /////////////////////////////////////////////////////
     /////////////// API Implementation///////////////////
@@ -85,12 +86,12 @@ public class AddExternalFirewallCmd extends BaseCmd {
     public String getCommandName() {
         return s_name;
     }
-    
+
     @Override
     public long getEntityOwnerId() {
         return Account.ACCOUNT_ID_SYSTEM;
     }
-     
+
     @SuppressWarnings("deprecation")
     @Override
     public void execute(){
@@ -101,9 +102,9 @@ public class AddExternalFirewallCmd extends BaseCmd {
             response.setResponseName(getCommandName());
             this.setResponseObject(response);
         } catch (InvalidParameterValueException ipve) {
-            throw new ServerApiException(BaseCmd.PARAM_ERROR, ipve.getMessage());
+            throw new ServerApiException(ApiErrorCode.PARAM_ERROR, ipve.getMessage());
         } catch (CloudRuntimeException cre) {
-            throw new ServerApiException(BaseCmd.INTERNAL_ERROR, cre.getMessage());
+            throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, cre.getMessage());
         }
     }
 }

http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/blob/3dabd5fb/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/AddSrxFirewallCmd.java
----------------------------------------------------------------------
diff --git a/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/AddSrxFirewallCmd.java b/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/AddSrxFirewallCmd.java
index a2ad4e5..9ed6814 100644
--- a/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/AddSrxFirewallCmd.java
+++ b/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/AddSrxFirewallCmd.java
@@ -11,7 +11,7 @@
 // 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 
+// KIND, either express or implied.  See the License for the
 // specific language governing permissions and limitations
 // under the License.
 package com.cloud.api.commands;
@@ -20,6 +20,7 @@ import org.apache.cloudstack.api.response.PhysicalNetworkResponse;
 import org.apache.log4j.Logger;
 
 import org.apache.cloudstack.api.ApiConstants;
+import org.apache.cloudstack.api.ApiErrorCode;
 import org.apache.cloudstack.api.BaseAsyncCmd;
 import org.apache.cloudstack.api.BaseCmd;
 import org.apache.cloudstack.api.APICommand;
@@ -57,7 +58,7 @@ public class AddSrxFirewallCmd extends BaseAsyncCmd {
 
     @Parameter(name=ApiConstants.USERNAME, type=CommandType.STRING, required = true, description="Credentials to reach SRX firewall device")
     private String username;
-    
+
     @Parameter(name=ApiConstants.PASSWORD, type=CommandType.STRING, required = true, description="Credentials to reach SRX firewall device")
     private String password;
 
@@ -102,12 +103,12 @@ public class AddSrxFirewallCmd extends BaseAsyncCmd {
                 response.setResponseName(getCommandName());
                 this.setResponseObject(response);
             } else {
-                throw new ServerApiException(BaseAsyncCmd.INTERNAL_ERROR, "Failed to add SRX firewall due to internal error.");
+                throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to add SRX firewall due to internal error.");
             }
         }  catch (InvalidParameterValueException invalidParamExcp) {
-            throw new ServerApiException(BaseCmd.PARAM_ERROR, invalidParamExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.PARAM_ERROR, invalidParamExcp.getMessage());
         } catch (CloudRuntimeException runtimeExcp) {
-            throw new ServerApiException(BaseCmd.INTERNAL_ERROR, runtimeExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, runtimeExcp.getMessage());
         }
     }
 
@@ -120,7 +121,7 @@ public class AddSrxFirewallCmd extends BaseAsyncCmd {
     public String getEventType() {
         return EventTypes.EVENT_EXTERNAL_FIREWALL_DEVICE_ADD;
     }
- 
+
     @Override
     public String getCommandName() {
         return s_name;

http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/blob/3dabd5fb/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/ConfigureSrxFirewallCmd.java
----------------------------------------------------------------------
diff --git a/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/ConfigureSrxFirewallCmd.java b/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/ConfigureSrxFirewallCmd.java
index 482fcc8..c9ea7cb 100644
--- a/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/ConfigureSrxFirewallCmd.java
+++ b/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/ConfigureSrxFirewallCmd.java
@@ -11,7 +11,7 @@
 // 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 
+// KIND, either express or implied.  See the License for the
 // specific language governing permissions and limitations
 // under the License.
 package com.cloud.api.commands;
@@ -19,6 +19,7 @@ package com.cloud.api.commands;
 import org.apache.log4j.Logger;
 
 import org.apache.cloudstack.api.ApiConstants;
+import org.apache.cloudstack.api.ApiErrorCode;
 import org.apache.cloudstack.api.BaseAsyncCmd;
 import org.apache.cloudstack.api.BaseCmd;
 import org.apache.cloudstack.api.APICommand;
@@ -81,12 +82,12 @@ public class ConfigureSrxFirewallCmd extends BaseAsyncCmd {
                 response.setResponseName(getCommandName());
                 this.setResponseObject(response);
             } else {
-                throw new ServerApiException(BaseAsyncCmd.INTERNAL_ERROR, "Failed to configure SRX firewall device due to internal error.");
+                throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to configure SRX firewall device due to internal error.");
             }
         }  catch (InvalidParameterValueException invalidParamExcp) {
-            throw new ServerApiException(BaseCmd.PARAM_ERROR, invalidParamExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.PARAM_ERROR, invalidParamExcp.getMessage());
         } catch (CloudRuntimeException runtimeExcp) {
-            throw new ServerApiException(BaseCmd.INTERNAL_ERROR, runtimeExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, runtimeExcp.getMessage());
         }
     }
 

http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/blob/3dabd5fb/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/DeleteExternalFirewallCmd.java
----------------------------------------------------------------------
diff --git a/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/DeleteExternalFirewallCmd.java b/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/DeleteExternalFirewallCmd.java
index 5cdc9e3..7759789 100644
--- a/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/DeleteExternalFirewallCmd.java
+++ b/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/DeleteExternalFirewallCmd.java
@@ -11,7 +11,7 @@
 // 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 
+// KIND, either express or implied.  See the License for the
 // specific language governing permissions and limitations
 // under the License.
 package com.cloud.api.commands;
@@ -20,6 +20,7 @@ import org.apache.cloudstack.api.response.HostResponse;
 import org.apache.log4j.Logger;
 
 import org.apache.cloudstack.api.ApiConstants;
+import org.apache.cloudstack.api.ApiErrorCode;
 import org.apache.cloudstack.api.BaseCmd;
 import org.apache.cloudstack.api.APICommand;
 import org.apache.cloudstack.api.Parameter;
@@ -32,9 +33,9 @@ import com.cloud.user.Account;
 
 @APICommand(name = "deleteExternalFirewall", description="Deletes an external firewall appliance.", responseObject = SuccessResponse.class)
 public class DeleteExternalFirewallCmd extends BaseCmd {
-    public static final Logger s_logger = Logger.getLogger(DeleteExternalFirewallCmd.class.getName());    
-    private static final String s_name = "deleteexternalfirewallresponse";    
-    
+    public static final Logger s_logger = Logger.getLogger(DeleteExternalFirewallCmd.class.getName());
+    private static final String s_name = "deleteexternalfirewallresponse";
+
     /////////////////////////////////////////////////////
     //////////////// API parameters /////////////////////
     /////////////////////////////////////////////////////
@@ -42,15 +43,15 @@ public class DeleteExternalFirewallCmd extends BaseCmd {
     @Parameter(name=ApiConstants.ID, type=CommandType.UUID, entityType = HostResponse.class,
             required = true, description="Id of the external firewall appliance.")
     private Long id;
-    
+
     ///////////////////////////////////////////////////
     /////////////////// Accessors ///////////////////////
     /////////////////////////////////////////////////////
-     
+
     public Long getId() {
         return id;
     }
-     
+
     /////////////////////////////////////////////////////
     /////////////// API Implementation///////////////////
     /////////////////////////////////////////////////////
@@ -61,7 +62,7 @@ public class DeleteExternalFirewallCmd extends BaseCmd {
     public String getCommandName() {
         return s_name;
     }
-    
+
     @Override
     public long getEntityOwnerId() {
         return Account.ACCOUNT_ID_SYSTEM;
@@ -77,10 +78,10 @@ public class DeleteExternalFirewallCmd extends BaseCmd {
             response.setResponseName(getCommandName());
             this.setResponseObject(response);
             } else {
-                throw new ServerApiException(BaseCmd.INTERNAL_ERROR, "Failed to delete external firewall.");
+                throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to delete external firewall.");
             }
         } catch (InvalidParameterValueException e) {
-            throw new ServerApiException(BaseCmd.PARAM_ERROR, "Failed to delete external firewall.");
+            throw new ServerApiException(ApiErrorCode.PARAM_ERROR, "Failed to delete external firewall.");
         }
     }
 }

http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/blob/3dabd5fb/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/DeleteSrxFirewallCmd.java
----------------------------------------------------------------------
diff --git a/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/DeleteSrxFirewallCmd.java b/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/DeleteSrxFirewallCmd.java
index 1dc792a..e45fe31 100644
--- a/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/DeleteSrxFirewallCmd.java
+++ b/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/DeleteSrxFirewallCmd.java
@@ -11,7 +11,7 @@
 // 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 
+// KIND, either express or implied.  See the License for the
 // specific language governing permissions and limitations
 // under the License.
 package com.cloud.api.commands;
@@ -19,6 +19,7 @@ package com.cloud.api.commands;
 import org.apache.log4j.Logger;
 
 import org.apache.cloudstack.api.ApiConstants;
+import org.apache.cloudstack.api.ApiErrorCode;
 import org.apache.cloudstack.api.BaseAsyncCmd;
 import org.apache.cloudstack.api.BaseCmd;
 import org.apache.cloudstack.api.APICommand;
@@ -72,12 +73,12 @@ public class DeleteSrxFirewallCmd extends BaseAsyncCmd {
                 response.setResponseName(getCommandName());
                 this.setResponseObject(response);
             } else {
-                throw new ServerApiException(BaseCmd.INTERNAL_ERROR, "Failed to delete SRX firewall device");
+                throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to delete SRX firewall device");
             }
         }  catch (InvalidParameterValueException invalidParamExcp) {
-            throw new ServerApiException(BaseCmd.PARAM_ERROR, invalidParamExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.PARAM_ERROR, invalidParamExcp.getMessage());
         } catch (CloudRuntimeException runtimeExcp) {
-            throw new ServerApiException(BaseCmd.INTERNAL_ERROR, runtimeExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, runtimeExcp.getMessage());
         }
     }
 

http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/blob/3dabd5fb/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/ListSrxFirewallNetworksCmd.java
----------------------------------------------------------------------
diff --git a/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/ListSrxFirewallNetworksCmd.java b/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/ListSrxFirewallNetworksCmd.java
index 9c2b396..03ae962 100644
--- a/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/ListSrxFirewallNetworksCmd.java
+++ b/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/ListSrxFirewallNetworksCmd.java
@@ -11,7 +11,7 @@
 // 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 
+// KIND, either express or implied.  See the License for the
 // specific language governing permissions and limitations
 // under the License.
 package com.cloud.api.commands;
@@ -80,9 +80,9 @@ public class ListSrxFirewallNetworksCmd extends BaseListCmd {
             response.setResponseName(getCommandName());
             this.setResponseObject(response);
         }  catch (InvalidParameterValueException invalidParamExcp) {
-            throw new ServerApiException(BaseCmd.PARAM_ERROR, invalidParamExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.PARAM_ERROR, invalidParamExcp.getMessage());
         } catch (CloudRuntimeException runtimeExcp) {
-            throw new ServerApiException(BaseCmd.INTERNAL_ERROR, runtimeExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, runtimeExcp.getMessage());
         }
     }
 

http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/blob/3dabd5fb/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/ListSrxFirewallsCmd.java
----------------------------------------------------------------------
diff --git a/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/ListSrxFirewallsCmd.java b/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/ListSrxFirewallsCmd.java
index 6508cc8..5242316 100644
--- a/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/ListSrxFirewallsCmd.java
+++ b/plugins/network-elements/juniper-srx/src/com/cloud/api/commands/ListSrxFirewallsCmd.java
@@ -11,7 +11,7 @@
 // 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 
+// KIND, either express or implied.  See the License for the
 // specific language governing permissions and limitations
 // under the License.
 package com.cloud.api.commands;
@@ -88,9 +88,9 @@ public class ListSrxFirewallsCmd extends BaseListCmd {
             response.setResponseName(getCommandName());
             this.setResponseObject(response);
         }  catch (InvalidParameterValueException invalidParamExcp) {
-            throw new ServerApiException(BaseCmd.PARAM_ERROR, invalidParamExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.PARAM_ERROR, invalidParamExcp.getMessage());
         } catch (CloudRuntimeException runtimeExcp) {
-            throw new ServerApiException(BaseCmd.INTERNAL_ERROR, runtimeExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, runtimeExcp.getMessage());
         }
     }
 

http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/blob/3dabd5fb/plugins/network-elements/netscaler/src/com/cloud/api/commands/AddNetscalerLoadBalancerCmd.java
----------------------------------------------------------------------
diff --git a/plugins/network-elements/netscaler/src/com/cloud/api/commands/AddNetscalerLoadBalancerCmd.java b/plugins/network-elements/netscaler/src/com/cloud/api/commands/AddNetscalerLoadBalancerCmd.java
index 9d90297..79c657f 100644
--- a/plugins/network-elements/netscaler/src/com/cloud/api/commands/AddNetscalerLoadBalancerCmd.java
+++ b/plugins/network-elements/netscaler/src/com/cloud/api/commands/AddNetscalerLoadBalancerCmd.java
@@ -51,7 +51,7 @@ public class AddNetscalerLoadBalancerCmd extends BaseAsyncCmd {
 
     @Parameter(name=ApiConstants.USERNAME, type=CommandType.STRING, required = true, description="Credentials to reach netscaler load balancer device")
     private String username;
-    
+
     @Parameter(name=ApiConstants.PASSWORD, type=CommandType.STRING, required = true, description="Credentials to reach netscaler load balancer device")
     private String password;
 
@@ -96,12 +96,12 @@ public class AddNetscalerLoadBalancerCmd extends BaseAsyncCmd {
                 response.setResponseName(getCommandName());
                 this.setResponseObject(response);
             } else {
-                throw new ServerApiException(BaseAsyncCmd.INTERNAL_ERROR, "Failed to add netscaler load balancer due to internal error.");
+                throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to add netscaler load balancer due to internal error.");
             }
         }  catch (InvalidParameterValueException invalidParamExcp) {
-            throw new ServerApiException(BaseCmd.PARAM_ERROR, invalidParamExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.PARAM_ERROR, invalidParamExcp.getMessage());
         } catch (CloudRuntimeException runtimeExcp) {
-            throw new ServerApiException(BaseCmd.INTERNAL_ERROR, runtimeExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, runtimeExcp.getMessage());
         }
     }
 
@@ -114,7 +114,7 @@ public class AddNetscalerLoadBalancerCmd extends BaseAsyncCmd {
     public String getEventType() {
         return EventTypes.EVENT_EXTERNAL_LB_DEVICE_ADD;
     }
- 
+
     @Override
     public String getCommandName() {
         return s_name;

http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/blob/3dabd5fb/plugins/network-elements/netscaler/src/com/cloud/api/commands/ConfigureNetscalerLoadBalancerCmd.java
----------------------------------------------------------------------
diff --git a/plugins/network-elements/netscaler/src/com/cloud/api/commands/ConfigureNetscalerLoadBalancerCmd.java b/plugins/network-elements/netscaler/src/com/cloud/api/commands/ConfigureNetscalerLoadBalancerCmd.java
index e0ec73a..33fe7a2 100644
--- a/plugins/network-elements/netscaler/src/com/cloud/api/commands/ConfigureNetscalerLoadBalancerCmd.java
+++ b/plugins/network-elements/netscaler/src/com/cloud/api/commands/ConfigureNetscalerLoadBalancerCmd.java
@@ -101,12 +101,12 @@ public class ConfigureNetscalerLoadBalancerCmd extends BaseAsyncCmd {
                 response.setResponseName(getCommandName());
                 this.setResponseObject(response);
             } else {
-                throw new ServerApiException(BaseAsyncCmd.INTERNAL_ERROR, "Failed to configure netscaler load balancer due to internal error.");
+                throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to configure netscaler load balancer due to internal error.");
             }
         }  catch (InvalidParameterValueException invalidParamExcp) {
-            throw new ServerApiException(BaseCmd.PARAM_ERROR, invalidParamExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.PARAM_ERROR, invalidParamExcp.getMessage());
         } catch (CloudRuntimeException runtimeExcp) {
-            throw new ServerApiException(BaseCmd.INTERNAL_ERROR, runtimeExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, runtimeExcp.getMessage());
         }
     }
 

http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/blob/3dabd5fb/plugins/network-elements/netscaler/src/com/cloud/api/commands/DeleteNetscalerLoadBalancerCmd.java
----------------------------------------------------------------------
diff --git a/plugins/network-elements/netscaler/src/com/cloud/api/commands/DeleteNetscalerLoadBalancerCmd.java b/plugins/network-elements/netscaler/src/com/cloud/api/commands/DeleteNetscalerLoadBalancerCmd.java
index ec7faab..5f62b80 100644
--- a/plugins/network-elements/netscaler/src/com/cloud/api/commands/DeleteNetscalerLoadBalancerCmd.java
+++ b/plugins/network-elements/netscaler/src/com/cloud/api/commands/DeleteNetscalerLoadBalancerCmd.java
@@ -18,6 +18,7 @@ package com.cloud.api.commands;
 import org.apache.log4j.Logger;
 
 import org.apache.cloudstack.api.ApiConstants;
+import org.apache.cloudstack.api.ApiErrorCode;
 import org.apache.cloudstack.api.BaseAsyncCmd;
 import org.apache.cloudstack.api.BaseCmd;
 import org.apache.cloudstack.api.APICommand;
@@ -72,12 +73,12 @@ public class DeleteNetscalerLoadBalancerCmd extends BaseAsyncCmd {
                 response.setResponseName(getCommandName());
                 this.setResponseObject(response);
             } else {
-                throw new ServerApiException(BaseCmd.INTERNAL_ERROR, "Failed to delete netscaler load balancer.");
+                throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to delete netscaler load balancer.");
             }
         }  catch (InvalidParameterValueException invalidParamExcp) {
-            throw new ServerApiException(BaseCmd.PARAM_ERROR, invalidParamExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.PARAM_ERROR, invalidParamExcp.getMessage());
         } catch (CloudRuntimeException runtimeExcp) {
-            throw new ServerApiException(BaseCmd.INTERNAL_ERROR, runtimeExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, runtimeExcp.getMessage());
         }
     }
 

http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/blob/3dabd5fb/plugins/network-elements/netscaler/src/com/cloud/api/commands/ListNetscalerLoadBalancerNetworksCmd.java
----------------------------------------------------------------------
diff --git a/plugins/network-elements/netscaler/src/com/cloud/api/commands/ListNetscalerLoadBalancerNetworksCmd.java b/plugins/network-elements/netscaler/src/com/cloud/api/commands/ListNetscalerLoadBalancerNetworksCmd.java
index 52476df..ec94c6e 100644
--- a/plugins/network-elements/netscaler/src/com/cloud/api/commands/ListNetscalerLoadBalancerNetworksCmd.java
+++ b/plugins/network-elements/netscaler/src/com/cloud/api/commands/ListNetscalerLoadBalancerNetworksCmd.java
@@ -20,6 +20,7 @@ import java.util.List;
 import org.apache.log4j.Logger;
 
 import org.apache.cloudstack.api.ApiConstants;
+import org.apache.cloudstack.api.ApiErrorCode;
 import org.apache.cloudstack.api.BaseCmd;
 import org.apache.cloudstack.api.BaseListCmd;
 import org.apache.cloudstack.api.APICommand;
@@ -83,9 +84,9 @@ public class ListNetscalerLoadBalancerNetworksCmd extends BaseListCmd {
             response.setResponseName(getCommandName());
             this.setResponseObject(response);
         }  catch (InvalidParameterValueException invalidParamExcp) {
-            throw new ServerApiException(BaseCmd.PARAM_ERROR, invalidParamExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.PARAM_ERROR, invalidParamExcp.getMessage());
         } catch (CloudRuntimeException runtimeExcp) {
-            throw new ServerApiException(BaseCmd.INTERNAL_ERROR, runtimeExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, runtimeExcp.getMessage());
         }
     }
 

http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/blob/3dabd5fb/plugins/network-elements/netscaler/src/com/cloud/api/commands/ListNetscalerLoadBalancersCmd.java
----------------------------------------------------------------------
diff --git a/plugins/network-elements/netscaler/src/com/cloud/api/commands/ListNetscalerLoadBalancersCmd.java b/plugins/network-elements/netscaler/src/com/cloud/api/commands/ListNetscalerLoadBalancersCmd.java
index bf679fa..8886218 100644
--- a/plugins/network-elements/netscaler/src/com/cloud/api/commands/ListNetscalerLoadBalancersCmd.java
+++ b/plugins/network-elements/netscaler/src/com/cloud/api/commands/ListNetscalerLoadBalancersCmd.java
@@ -21,6 +21,7 @@ import org.apache.cloudstack.api.response.PhysicalNetworkResponse;
 import org.apache.log4j.Logger;
 
 import org.apache.cloudstack.api.ApiConstants;
+import org.apache.cloudstack.api.ApiErrorCode;
 import org.apache.cloudstack.api.BaseCmd;
 import org.apache.cloudstack.api.BaseListCmd;
 import org.apache.cloudstack.api.APICommand;
@@ -91,9 +92,9 @@ public class ListNetscalerLoadBalancersCmd extends BaseListCmd {
             response.setResponseName(getCommandName());
             this.setResponseObject(response);
         }  catch (InvalidParameterValueException invalidParamExcp) {
-            throw new ServerApiException(BaseCmd.PARAM_ERROR, invalidParamExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.PARAM_ERROR, invalidParamExcp.getMessage());
         } catch (CloudRuntimeException runtimeExcp) {
-            throw new ServerApiException(BaseCmd.INTERNAL_ERROR, runtimeExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, runtimeExcp.getMessage());
         }
     }
 

http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/blob/3dabd5fb/plugins/network-elements/nicira-nvp/src/com/cloud/api/commands/AddNiciraNvpDeviceCmd.java
----------------------------------------------------------------------
diff --git a/plugins/network-elements/nicira-nvp/src/com/cloud/api/commands/AddNiciraNvpDeviceCmd.java b/plugins/network-elements/nicira-nvp/src/com/cloud/api/commands/AddNiciraNvpDeviceCmd.java
index 1734ce2..3bd39b8 100644
--- a/plugins/network-elements/nicira-nvp/src/com/cloud/api/commands/AddNiciraNvpDeviceCmd.java
+++ b/plugins/network-elements/nicira-nvp/src/com/cloud/api/commands/AddNiciraNvpDeviceCmd.java
@@ -38,7 +38,7 @@ public class AddNiciraNvpDeviceCmd extends BaseAsyncCmd {
     private static final Logger s_logger = Logger.getLogger(AddNiciraNvpDeviceCmd.class.getName());
     private static final String s_name = "addniciranvpdeviceresponse";
     @PlugService NiciraNvpElementService _niciraNvpElementService;
-    
+
     /////////////////////////////////////////////////////
     //////////////// API parameters /////////////////////
     /////////////////////////////////////////////////////
@@ -52,16 +52,16 @@ public class AddNiciraNvpDeviceCmd extends BaseAsyncCmd {
 
     @Parameter(name=ApiConstants.USERNAME, type=CommandType.STRING, required = true, description="Credentials to access the Nicira Controller API")
     private String username;
-    
+
     @Parameter(name=ApiConstants.PASSWORD, type=CommandType.STRING, required = true, description="Credentials to access the Nicira Controller API")
     private String password;
-    
+
     @Parameter(name=ApiConstants.NICIRA_NVP_TRANSPORT_ZONE_UUID, type=CommandType.STRING, required = true, description="The Transportzone UUID configured on the Nicira Controller")
     private String transportzoneuuid;
-    
+
     @Parameter(name=ApiConstants.NICIRA_NVP_GATEWAYSERVICE_UUID, type=CommandType.STRING, required = false, description="The L3 Gateway Service UUID configured on the Nicira Controller")
     private String l3gatewayserviceuuid;
-    
+
     /////////////////////////////////////////////////////
     /////////////////// Accessors ///////////////////////
     /////////////////////////////////////////////////////
@@ -81,11 +81,11 @@ public class AddNiciraNvpDeviceCmd extends BaseAsyncCmd {
     public String getPassword() {
         return password;
     }
-    
+
     public String getTransportzoneUuid() {
         return transportzoneuuid;
     }
-    
+
     public String getL3GatewayServiceUuid() {
     	return l3gatewayserviceuuid;
     }
@@ -104,15 +104,15 @@ public class AddNiciraNvpDeviceCmd extends BaseAsyncCmd {
                 response.setResponseName(getCommandName());
                 this.setResponseObject(response);
             } else {
-                throw new ServerApiException(BaseAsyncCmd.INTERNAL_ERROR, "Failed to add Nicira NVP device due to internal error.");
+                throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to add Nicira NVP device due to internal error.");
             }
         }  catch (InvalidParameterValueException invalidParamExcp) {
-            throw new ServerApiException(BaseCmd.PARAM_ERROR, invalidParamExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.PARAM_ERROR, invalidParamExcp.getMessage());
         } catch (CloudRuntimeException runtimeExcp) {
-            throw new ServerApiException(BaseCmd.INTERNAL_ERROR, runtimeExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, runtimeExcp.getMessage());
         }
     }
- 
+
     @Override
     public String getCommandName() {
         return s_name;

http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/blob/3dabd5fb/plugins/network-elements/nicira-nvp/src/com/cloud/api/commands/DeleteNiciraNvpDeviceCmd.java
----------------------------------------------------------------------
diff --git a/plugins/network-elements/nicira-nvp/src/com/cloud/api/commands/DeleteNiciraNvpDeviceCmd.java b/plugins/network-elements/nicira-nvp/src/com/cloud/api/commands/DeleteNiciraNvpDeviceCmd.java
index 1254441..9a10c28 100644
--- a/plugins/network-elements/nicira-nvp/src/com/cloud/api/commands/DeleteNiciraNvpDeviceCmd.java
+++ b/plugins/network-elements/nicira-nvp/src/com/cloud/api/commands/DeleteNiciraNvpDeviceCmd.java
@@ -20,6 +20,7 @@ import com.cloud.api.response.NiciraNvpDeviceResponse;
 import org.apache.log4j.Logger;
 
 import org.apache.cloudstack.api.ApiConstants;
+import org.apache.cloudstack.api.ApiErrorCode;
 import org.apache.cloudstack.api.BaseAsyncCmd;
 import org.apache.cloudstack.api.BaseCmd;
 import org.apache.cloudstack.api.APICommand;
@@ -72,12 +73,12 @@ public class DeleteNiciraNvpDeviceCmd extends BaseAsyncCmd {
                 response.setResponseName(getCommandName());
                 this.setResponseObject(response);
             } else {
-                throw new ServerApiException(BaseCmd.INTERNAL_ERROR, "Failed to delete Nicira device.");
+                throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to delete Nicira device.");
             }
         }  catch (InvalidParameterValueException invalidParamExcp) {
-            throw new ServerApiException(BaseCmd.PARAM_ERROR, invalidParamExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.PARAM_ERROR, invalidParamExcp.getMessage());
         } catch (CloudRuntimeException runtimeExcp) {
-            throw new ServerApiException(BaseCmd.INTERNAL_ERROR, runtimeExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, runtimeExcp.getMessage());
         }
     }
 

http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/blob/3dabd5fb/plugins/network-elements/nicira-nvp/src/com/cloud/api/commands/ListNiciraNvpDeviceNetworksCmd.java
----------------------------------------------------------------------
diff --git a/plugins/network-elements/nicira-nvp/src/com/cloud/api/commands/ListNiciraNvpDeviceNetworksCmd.java b/plugins/network-elements/nicira-nvp/src/com/cloud/api/commands/ListNiciraNvpDeviceNetworksCmd.java
index bea417d..70973c0 100644
--- a/plugins/network-elements/nicira-nvp/src/com/cloud/api/commands/ListNiciraNvpDeviceNetworksCmd.java
+++ b/plugins/network-elements/nicira-nvp/src/com/cloud/api/commands/ListNiciraNvpDeviceNetworksCmd.java
@@ -23,6 +23,7 @@ import com.cloud.api.response.NiciraNvpDeviceResponse;
 import org.apache.log4j.Logger;
 
 import org.apache.cloudstack.api.ApiConstants;
+import org.apache.cloudstack.api.ApiErrorCode;
 import org.apache.cloudstack.api.BaseCmd;
 import org.apache.cloudstack.api.BaseListCmd;
 import org.apache.cloudstack.api.APICommand;
@@ -85,9 +86,9 @@ public class ListNiciraNvpDeviceNetworksCmd extends BaseListCmd {
             response.setResponseName(getCommandName());
             this.setResponseObject(response);
         }  catch (InvalidParameterValueException invalidParamExcp) {
-            throw new ServerApiException(BaseCmd.PARAM_ERROR, invalidParamExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.PARAM_ERROR, invalidParamExcp.getMessage());
         } catch (CloudRuntimeException runtimeExcp) {
-            throw new ServerApiException(BaseCmd.INTERNAL_ERROR, runtimeExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, runtimeExcp.getMessage());
         }
     }
 

http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/blob/3dabd5fb/plugins/network-elements/nicira-nvp/src/com/cloud/api/commands/ListNiciraNvpDevicesCmd.java
----------------------------------------------------------------------
diff --git a/plugins/network-elements/nicira-nvp/src/com/cloud/api/commands/ListNiciraNvpDevicesCmd.java b/plugins/network-elements/nicira-nvp/src/com/cloud/api/commands/ListNiciraNvpDevicesCmd.java
index 04aab2a..0d2ca5a 100644
--- a/plugins/network-elements/nicira-nvp/src/com/cloud/api/commands/ListNiciraNvpDevicesCmd.java
+++ b/plugins/network-elements/nicira-nvp/src/com/cloud/api/commands/ListNiciraNvpDevicesCmd.java
@@ -20,6 +20,7 @@ import java.util.ArrayList;
 import java.util.List;
 
 import org.apache.cloudstack.api.ApiConstants;
+import org.apache.cloudstack.api.ApiErrorCode;
 import org.apache.cloudstack.api.BaseCmd;
 import org.apache.cloudstack.api.BaseListCmd;
 import org.apache.cloudstack.api.Parameter;
@@ -92,9 +93,9 @@ public class ListNiciraNvpDevicesCmd extends BaseListCmd {
             response.setResponseName(getCommandName());
             this.setResponseObject(response);
         }  catch (InvalidParameterValueException invalidParamExcp) {
-            throw new ServerApiException(BaseCmd.PARAM_ERROR, invalidParamExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.PARAM_ERROR, invalidParamExcp.getMessage());
         } catch (CloudRuntimeException runtimeExcp) {
-            throw new ServerApiException(BaseCmd.INTERNAL_ERROR, runtimeExcp.getMessage());
+            throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, runtimeExcp.getMessage());
         }
     }
 
@@ -102,5 +103,5 @@ public class ListNiciraNvpDevicesCmd extends BaseListCmd {
     public String getCommandName() {
         return s_name;
     }
-    
+
 }

http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/blob/3dabd5fb/server/src/com/cloud/api/ApiDispatcher.java
----------------------------------------------------------------------
diff --git a/server/src/com/cloud/api/ApiDispatcher.java b/server/src/com/cloud/api/ApiDispatcher.java
index 55d7f42..04b46e5 100755
--- a/server/src/com/cloud/api/ApiDispatcher.java
+++ b/server/src/com/cloud/api/ApiDispatcher.java
@@ -105,46 +105,13 @@ public class ApiDispatcher {
         _daoNameMap.put("com.cloud.template.VirtualMachineTemplate", VMTemplateDao.class);
     }
 
-    public void dispatchCreateCmd(BaseAsyncCreateCmd cmd, Map<String, String> params) {
-    	processParameters(cmd, params);
+    public void dispatchCreateCmd(BaseAsyncCreateCmd cmd, Map<String, String> params) throws Exception {
+        processParameters(cmd, params);
+
+        UserContext ctx = UserContext.current();
+        ctx.setAccountId(cmd.getEntityOwnerId());
+        cmd.create();
 
-        try {
-            UserContext ctx = UserContext.current();
-            ctx.setAccountId(cmd.getEntityOwnerId());
-            cmd.create();
-        } catch (Throwable t) {
-            if (t instanceof InvalidParameterValueException || t instanceof IllegalArgumentException) {
-                s_logger.info(t.getMessage());
-                throw new ServerApiException(BaseCmd.PARAM_ERROR, t.getMessage());
-            } else if (t instanceof PermissionDeniedException) {
-                s_logger.info("PermissionDenied: " + t.getMessage());
-                throw new ServerApiException(BaseCmd.ACCOUNT_ERROR, t.getMessage());
-            } else if (t instanceof AccountLimitException) {
-                s_logger.info(t.getMessage());
-                throw new ServerApiException(BaseCmd.ACCOUNT_RESOURCE_LIMIT_ERROR, t.getMessage());
-            } else if (t instanceof InsufficientCapacityException) {
-                s_logger.info(t.getMessage());
-                throw new ServerApiException(BaseCmd.INSUFFICIENT_CAPACITY_ERROR, t.getMessage());
-            } else if (t instanceof ResourceAllocationException) {
-                s_logger.info(t.getMessage());
-                throw new ServerApiException(BaseCmd.RESOURCE_ALLOCATION_ERROR, t.getMessage());
-            } else if (t instanceof ResourceUnavailableException) {
-                s_logger.warn("Exception: ", t);
-                throw new ServerApiException(BaseCmd.RESOURCE_UNAVAILABLE_ERROR, t.getMessage());
-            } else if (t instanceof AsyncCommandQueued) {
-                throw (AsyncCommandQueued) t;
-            } else if (t instanceof ServerApiException) {
-                s_logger.warn(t.getClass() + " : " + ((ServerApiException) t).getDescription());
-                throw (ServerApiException) t;
-            } else {
-                s_logger.error("Exception while executing " + cmd.getClass().getSimpleName() + ":", t);
-                if (UserContext.current().getCaller().getType() == Account.ACCOUNT_TYPE_ADMIN) {
-                    throw new ServerApiException(BaseCmd.INTERNAL_ERROR, t.getMessage());
-                } else {
-                    throw new ServerApiException(BaseCmd.INTERNAL_ERROR, BaseCmd.USER_ERROR_MESSAGE);
-                }
-            }
-        }
     }
 
     private void doAccessChecks(BaseCmd cmd, List<Object> entitiesToAccess) {
@@ -170,164 +137,36 @@ public class ApiDispatcher {
         }
     }
 
-    public void dispatch(BaseCmd cmd, Map<String, String> params) {
-        try {
-            processParameters(cmd, params);
-            UserContext ctx = UserContext.current();
-            ctx.setAccountId(cmd.getEntityOwnerId());
-            if (cmd instanceof BaseAsyncCmd) {
-
-                BaseAsyncCmd asyncCmd = (BaseAsyncCmd) cmd;
-                String startEventId = params.get("ctxStartEventId");
-                ctx.setStartEventId(Long.valueOf(startEventId));
-
-                // Synchronise job on the object if needed
-                if (asyncCmd.getJob() != null && asyncCmd.getSyncObjId() != null && asyncCmd.getSyncObjType() != null) {
-                    Long queueSizeLimit = null;
-                    if (asyncCmd.getSyncObjType() != null && asyncCmd.getSyncObjType().equalsIgnoreCase(BaseAsyncCmd.snapshotHostSyncObject)) {
-                        queueSizeLimit = _createSnapshotQueueSizeLimit;
-                    } else {
-                        queueSizeLimit = 1L;
-                    }
-
-                    if (queueSizeLimit != null) {
-                        _asyncMgr.syncAsyncJobExecution(asyncCmd.getJob(), asyncCmd.getSyncObjType(),
-                                asyncCmd.getSyncObjId().longValue(), queueSizeLimit);
-                    } else {
-                        s_logger.trace("The queue size is unlimited, skipping the synchronizing");
-                    }
-                }
-            }
-
-            cmd.execute();
-
-        } catch (Throwable t) {
-            if (t instanceof InvalidParameterValueException) {
-            	// earlier, we'd log the db id as part of the log message, but now since we've pushed
-            	// the id into a IdentityProxy object, we would need to dump that object alongwith the
-            	// message.
-            	InvalidParameterValueException ref = (InvalidParameterValueException) t;
-            	ServerApiException ex = new ServerApiException(BaseCmd.PARAM_ERROR, t.getMessage());
-                // copy over the IdentityProxy information as well and throw the serverapiexception.
-                ArrayList<String> idList = ref.getIdProxyList();
-                if (idList != null) {
-                	// Iterate through entire arraylist and copy over each proxy id.
-                	for (int i = 0 ; i < idList.size(); i++) {
-                		ex.addProxyObject(idList.get(i));
-                		s_logger.info(t.getMessage() + " uuid: " + idList.get(i));
-                	}
-                } else {
-                	s_logger.info(t.getMessage());
-                }
-                // Also copy over the cserror code.
-    			ex.setCSErrorCode(ref.getCSErrorCode());
-                throw ex;
-            } else if(t instanceof IllegalArgumentException) {
-            	throw new ServerApiException(BaseCmd.PARAM_ERROR, t.getMessage());
-            } else if (t instanceof PermissionDeniedException) {
-            	PermissionDeniedException ref = (PermissionDeniedException)t;
-            	ServerApiException ex = new ServerApiException(BaseCmd.ACCOUNT_ERROR, t.getMessage());
-                // copy over the IdentityProxy information as well and throw the serverapiexception.
-            	ArrayList<String> idList = ref.getIdProxyList();
-                if (idList != null) {
-                	// Iterate through entire arraylist and copy over each proxy id.
-                	for (int i = 0 ; i < idList.size(); i++) {
-                 		ex.addProxyObject(idList.get(i));
-                 		s_logger.info("PermissionDenied: " + t.getMessage() + "uuid: " + idList.get(i));
-                 	}
-                 } else {
-                	 s_logger.info("PermissionDenied: " + t.getMessage());
-                 }
-                // Also copy over the cserror code.
-    			ex.setCSErrorCode(ref.getCSErrorCode());
-    			throw ex;
-            } else if (t instanceof AccountLimitException) {
-            	AccountLimitException ref = (AccountLimitException)t;
-            	ServerApiException ex = new ServerApiException(BaseCmd.ACCOUNT_RESOURCE_LIMIT_ERROR, t.getMessage());
-                // copy over the IdentityProxy information as well and throw the serverapiexception.
-            	ArrayList<String> idList = ref.getIdProxyList();
-                if (idList != null) {
-                	// Iterate through entire arraylist and copy over each proxy id.
-                	for (int i = 0 ; i < idList.size(); i++) {
-                 		ex.addProxyObject(idList.get(i));
-                 		s_logger.info(t.getMessage() + "uuid: " + idList.get(i));
-                	}
-                } else {
-                	s_logger.info(t.getMessage());
-                }
-                // Also copy over the cserror code.
-    			ex.setCSErrorCode(ref.getCSErrorCode());
-                throw ex;
-            } else if (t instanceof InsufficientCapacityException) {
-            	InsufficientCapacityException ref = (InsufficientCapacityException)t;
-            	ServerApiException ex = new ServerApiException(BaseCmd.INSUFFICIENT_CAPACITY_ERROR, t.getMessage());
-                // copy over the IdentityProxy information as well and throw the serverapiexception.
-            	ArrayList<String> idList = ref.getIdProxyList();
-                if (idList != null) {
-                	// Iterate through entire arraylist and copy over each proxy id.
-                	for (int i = 0 ; i < idList.size(); i++) {
-                 		ex.addProxyObject(idList.get(i));
-                 		s_logger.info(t.getMessage() + "uuid: " + idList.get(i));
-                	}
-                } else {
-                	s_logger.info(t.getMessage());
-                }
-                // Also copy over the cserror code
-    			ex.setCSErrorCode(ref.getCSErrorCode());
-                throw ex;
-            } else if (t instanceof ResourceAllocationException) {
-            	ResourceAllocationException ref = (ResourceAllocationException)t;
-                ServerApiException ex = new ServerApiException(BaseCmd.RESOURCE_ALLOCATION_ERROR, t.getMessage());
-                // copy over the IdentityProxy information as well and throw the serverapiexception.
-                ArrayList<String> idList = ref.getIdProxyList();
-                if (idList != null) {
-                	// Iterate through entire arraylist and copy over each proxy id.
-                	for (int i = 0 ; i < idList.size(); i++) {
-                 		String id = idList.get(i);
-                 		ex.addProxyObject(id);
-                 		s_logger.warn("Exception: " + t.getMessage() + "uuid: " + id);
-                	}
+    public void dispatch(BaseCmd cmd, Map<String, String> params) throws Exception {
+        processParameters(cmd, params);
+        UserContext ctx = UserContext.current();
+        ctx.setAccountId(cmd.getEntityOwnerId());
+        if (cmd instanceof BaseAsyncCmd) {
+
+            BaseAsyncCmd asyncCmd = (BaseAsyncCmd) cmd;
+            String startEventId = params.get("ctxStartEventId");
+            ctx.setStartEventId(Long.valueOf(startEventId));
+
+            // Synchronise job on the object if needed
+            if (asyncCmd.getJob() != null && asyncCmd.getSyncObjId() != null && asyncCmd.getSyncObjType() != null) {
+                Long queueSizeLimit = null;
+                if (asyncCmd.getSyncObjType() != null && asyncCmd.getSyncObjType().equalsIgnoreCase(BaseAsyncCmd.snapshotHostSyncObject)) {
+                    queueSizeLimit = _createSnapshotQueueSizeLimit;
                 } else {
-                	s_logger.warn("Exception: ", t);
+                    queueSizeLimit = 1L;
                 }
-                // Also copy over the cserror code.
-    			ex.setCSErrorCode(ref.getCSErrorCode());
-                throw ex;
-            } else if (t instanceof ResourceUnavailableException) {
-            	ResourceUnavailableException ref = (ResourceUnavailableException)t;
-                ServerApiException ex = new ServerApiException(BaseCmd.RESOURCE_UNAVAILABLE_ERROR, t.getMessage());
-                // copy over the IdentityProxy information as well and throw the serverapiexception.
-                ArrayList<String> idList = ref.getIdProxyList();
-                if (idList != null) {
-                	// Iterate through entire arraylist and copy over each proxy id.
-                	for (int i = 0 ; i < idList.size(); i++) {
-                 		String id = idList.get(i);
-                 		ex.addProxyObject(id);
-                 		s_logger.warn("Exception: " + t.getMessage() + "uuid: " + id);
-                	}
-                } else {
-                	s_logger.warn("Exception: ", t);
-                }
-                // Also copy over the cserror code.
-    			ex.setCSErrorCode(ref.getCSErrorCode());
-                throw ex;
-            } else if (t instanceof AsyncCommandQueued) {
-                throw (AsyncCommandQueued) t;
-            } else if (t instanceof ServerApiException) {
-                s_logger.warn(t.getClass() + " : " + ((ServerApiException) t).getDescription());
-                throw (ServerApiException) t;
-            } else {
-                s_logger.error("Exception while executing " + cmd.getClass().getSimpleName() + ":", t);
-                ServerApiException ex;
-                if (UserContext.current().getCaller().getType() == Account.ACCOUNT_TYPE_ADMIN) {
-                	ex = new ServerApiException(BaseCmd.INTERNAL_ERROR, t.getMessage());
+
+                if (queueSizeLimit != null) {
+                    _asyncMgr
+                            .syncAsyncJobExecution(asyncCmd.getJob(), asyncCmd.getSyncObjType(), asyncCmd.getSyncObjId().longValue(), queueSizeLimit);
                 } else {
-                    ex = new ServerApiException(BaseCmd.INTERNAL_ERROR, BaseCmd.USER_ERROR_MESSAGE);
+                    s_logger.trace("The queue size is unlimited, skipping the synchronizing");
                 }
-                ex.setCSErrorCode(CSExceptionErrorCode.getCSErrCode(ex.getClass().getName()));
-            	throw ex;
             }
         }
+
+        cmd.execute();
+
     }
 
     @SuppressWarnings({ "unchecked", "rawtypes" })
@@ -343,11 +182,11 @@ public class ApiDispatcher {
             }
 
             if ((unpackedParams.get(ApiConstants.PAGE) == null) && (pageSize != null && pageSize != BaseListCmd.PAGESIZE_UNLIMITED)) {
-                ServerApiException ex = new ServerApiException(BaseCmd.PARAM_ERROR, "\"page\" parameter is required when \"pagesize\" is specified");
+                ServerApiException ex = new ServerApiException(ApiErrorCode.PARAM_ERROR, "\"page\" parameter is required when \"pagesize\" is specified");
                 ex.setCSErrorCode(CSExceptionErrorCode.getCSErrCode(ex.getClass().getName()));
             	throw ex;
             } else if (pageSize == null && (unpackedParams.get(ApiConstants.PAGE) != null)) {
-                throw new ServerApiException(BaseCmd.PARAM_ERROR, "\"pagesize\" parameter is required when \"page\" is specified");
+                throw new ServerApiException(ApiErrorCode.PARAM_ERROR, "\"pagesize\" parameter is required when \"page\" is specified");
             }
         }
 
@@ -370,7 +209,7 @@ public class ApiDispatcher {
             Object paramObj = unpackedParams.get(parameterAnnotation.name());
             if (paramObj == null) {
                 if (parameterAnnotation.required()) {
-                    throw new ServerApiException(BaseCmd.PARAM_ERROR, "Unable to execute API command " + cmd.getCommandName().substring(0, cmd.getCommandName().length() - 8) + " due to missing parameter "
+                    throw new ServerApiException(ApiErrorCode.PARAM_ERROR, "Unable to execute API command " + cmd.getCommandName().substring(0, cmd.getCommandName().length() - 8) + " due to missing parameter "
                             + parameterAnnotation.name());
                 }
                 continue;
@@ -383,23 +222,23 @@ public class ApiDispatcher {
                 if (s_logger.isDebugEnabled()) {
                     s_logger.debug("Unable to execute API command " + cmd.getCommandName() + " due to invalid value " + paramObj + " for parameter " + parameterAnnotation.name());
                 }
-                throw new ServerApiException(BaseCmd.PARAM_ERROR, "Unable to execute API command " + cmd.getCommandName().substring(0, cmd.getCommandName().length() - 8) + " due to invalid value " + paramObj
+                throw new ServerApiException(ApiErrorCode.PARAM_ERROR, "Unable to execute API command " + cmd.getCommandName().substring(0, cmd.getCommandName().length() - 8) + " due to invalid value " + paramObj
                         + " for parameter "
                         + parameterAnnotation.name());
             } catch (ParseException parseEx) {
                 if (s_logger.isDebugEnabled()) {
                     s_logger.debug("Invalid date parameter " + paramObj + " passed to command " + cmd.getCommandName().substring(0, cmd.getCommandName().length() - 8));
                 }
-                throw new ServerApiException(BaseCmd.PARAM_ERROR, "Unable to parse date " + paramObj + " for command " + cmd.getCommandName().substring(0, cmd.getCommandName().length() - 8)
+                throw new ServerApiException(ApiErrorCode.PARAM_ERROR, "Unable to parse date " + paramObj + " for command " + cmd.getCommandName().substring(0, cmd.getCommandName().length() - 8)
                         + ", please pass dates in the format mentioned in the api documentation");
             } catch (InvalidParameterValueException invEx) {
-                throw new ServerApiException(BaseCmd.PARAM_ERROR, "Unable to execute API command " + cmd.getCommandName().substring(0, cmd.getCommandName().length() - 8) + " due to invalid value. " + invEx.getMessage());
+                throw new ServerApiException(ApiErrorCode.PARAM_ERROR, "Unable to execute API command " + cmd.getCommandName().substring(0, cmd.getCommandName().length() - 8) + " due to invalid value. " + invEx.getMessage());
             } catch (CloudRuntimeException cloudEx) {
                 // FIXME: Better error message? This only happens if the API command is not executable, which typically
             	//means
                 // there was
                 // and IllegalAccessException setting one of the parameters.
-                throw new ServerApiException(BaseCmd.INTERNAL_ERROR, "Internal error executing API command " + cmd.getCommandName().substring(0, cmd.getCommandName().length() - 8));
+                throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Internal error executing API command " + cmd.getCommandName().substring(0, cmd.getCommandName().length() - 8));
             }
 
             //check access on the resource this field points to

http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/blob/3dabd5fb/server/src/com/cloud/api/ApiServer.java
----------------------------------------------------------------------
diff --git a/server/src/com/cloud/api/ApiServer.java b/server/src/com/cloud/api/ApiServer.java
index e106f03..fc197b9 100755
--- a/server/src/com/cloud/api/ApiServer.java
+++ b/server/src/com/cloud/api/ApiServer.java
@@ -101,6 +101,8 @@ import org.apache.cloudstack.api.command.user.tag.ListTagsCmd;
 import com.cloud.api.response.ApiResponseSerializer;
 import org.apache.cloudstack.api.response.ExceptionResponse;
 import org.apache.cloudstack.api.response.ListResponse;
+
+import com.cloud.async.AsyncCommandQueued;
 import com.cloud.async.AsyncJob;
 import com.cloud.async.AsyncJobManager;
 import com.cloud.async.AsyncJobVO;
@@ -111,9 +113,13 @@ import com.cloud.configuration.dao.ConfigurationDao;
 import com.cloud.domain.Domain;
 import com.cloud.domain.DomainVO;
 import com.cloud.event.EventUtils;
+import com.cloud.exception.AccountLimitException;
 import com.cloud.exception.CloudAuthenticationException;
+import com.cloud.exception.InsufficientCapacityException;
 import com.cloud.exception.InvalidParameterValueException;
 import com.cloud.exception.PermissionDeniedException;
+import com.cloud.exception.ResourceAllocationException;
+import com.cloud.exception.ResourceUnavailableException;
 import com.cloud.server.ManagementServer;
 import com.cloud.user.Account;
 import com.cloud.user.AccountManager;
@@ -130,7 +136,7 @@ import com.cloud.utils.component.Inject;
 import com.cloud.utils.concurrency.NamedThreadFactory;
 import com.cloud.utils.db.SearchCriteria;
 import com.cloud.utils.db.Transaction;
-import com.cloud.utils.exception.CSExceptionErrorCode;
+
 
 public class ApiServer implements HttpRequestHandler {
     private static final Logger s_logger = Logger.getLogger(ApiServer.class.getName());
@@ -272,8 +278,8 @@ public class ApiServer implements HttpRequestHandler {
 
                 writeResponse(response, responseText, HttpStatus.SC_OK, responseType, null);
             } catch (ServerApiException se) {
-                String responseText = getSerializedApiError(se.getErrorCode(), se.getDescription(), parameterMap, responseType, se);
-                writeResponse(response, responseText, se.getErrorCode(), responseType, se.getDescription());
+                String responseText = getSerializedApiError(se, parameterMap, responseType);
+                writeResponse(response, responseText, se.getErrorCode().getHttpCode(), responseType, se.getDescription());
                 sb.append(" " + se.getErrorCode() + " " + se.getDescription());
             } catch (RuntimeException e) {
                 // log runtime exception like NullPointerException to help identify the source easier
@@ -302,7 +308,7 @@ public class ApiServer implements HttpRequestHandler {
                         s_logger.trace("   key: " + keyStr + ", value: " + ((value == null) ? "'null'" : value[0]));
                     }
                 }
-                throw new ServerApiException(BaseCmd.UNSUPPORTED_ACTION_ERROR, "Invalid request, no command sent");
+                throw new ServerApiException(ApiErrorCode.UNSUPPORTED_ACTION_ERROR, "Invalid request, no command sent");
             } else {
                 Map<String, String> paramMap = new HashMap<String, String>();
                 Set keys = params.keySet();
@@ -320,10 +326,10 @@ public class ApiServer implements HttpRequestHandler {
                             decodedValue = URLDecoder.decode(value[0], "UTF-8");
                         } catch (UnsupportedEncodingException usex) {
                             s_logger.warn(key + " could not be decoded, value = " + value[0]);
-                            throw new ServerApiException(BaseCmd.PARAM_ERROR, key + " could not be decoded, received value " + value[0]);
+                            throw new ServerApiException(ApiErrorCode.PARAM_ERROR, key + " could not be decoded, received value " + value[0]);
                         } catch (IllegalArgumentException iae) {
                             s_logger.warn(key + " could not be decoded, value = " + value[0]);
-                            throw new ServerApiException(BaseCmd.PARAM_ERROR, key + " could not be decoded, received value " + value[0] + " which contains illegal characters eg.%");
+                            throw new ServerApiException(ApiErrorCode.PARAM_ERROR, key + " could not be decoded, received value " + value[0] + " which contains illegal characters eg.%");
                         }
                     } else {
                         decodedValue = value[0];
@@ -344,51 +350,81 @@ public class ApiServer implements HttpRequestHandler {
                         String errorString = "Unknown API command: " + ((command == null) ? "null" : command[0]);
                         s_logger.warn(errorString);
                         auditTrailSb.append(" " + errorString);
-                        throw new ServerApiException(BaseCmd.UNSUPPORTED_ACTION_ERROR, errorString);
+                        throw new ServerApiException(ApiErrorCode.UNSUPPORTED_ACTION_ERROR, errorString);
                     }
                 }
             }
-        } catch (Exception ex) {
-            if (ex instanceof InvalidParameterValueException) {
-            	InvalidParameterValueException ref = (InvalidParameterValueException)ex;
-		ServerApiException e = new ServerApiException(BaseCmd.PARAM_ERROR, ex.getMessage());
-                // copy over the IdentityProxy information as well and throw the serverapiexception.
-                ArrayList<String> idList = ref.getIdProxyList();
-                if (idList != null) {
-                	// Iterate through entire arraylist and copy over each proxy id.
-                	for (int i = 0 ; i < idList.size(); i++) {
-                		e.addProxyObject(idList.get(i));
-                	}
-                }
-                // Also copy over the cserror code and the function/layer in which it was thrown.
-            	e.setCSErrorCode(ref.getCSErrorCode());
-                throw e;
-            } else if (ex instanceof PermissionDeniedException) {
-            	PermissionDeniedException ref = (PermissionDeniedException)ex;
-            	ServerApiException e = new ServerApiException(BaseCmd.ACCOUNT_ERROR, ex.getMessage());
-                // copy over the IdentityProxy information as well and throw the serverapiexception.
-            	ArrayList<String> idList = ref.getIdProxyList();
-                if (idList != null) {
-                	// Iterate through entire arraylist and copy over each proxy id.
-                	for (int i = 0 ; i < idList.size(); i++) {
-                		e.addProxyObject(idList.get(i));
-                	}
-                }
-                e.setCSErrorCode(ref.getCSErrorCode());
-                throw e;
-            } else if (ex instanceof ServerApiException) {
-                throw (ServerApiException) ex;
-            } else {
-                s_logger.error("unhandled exception executing api command: " + ((command == null) ? "null" : command[0]), ex);
-                ServerApiException e = new ServerApiException(BaseCmd.INTERNAL_ERROR, "Internal server error, unable to execute request.");
-                e.setCSErrorCode(CSExceptionErrorCode.getCSErrCode("ServerApiException"));
-                throw e;
+        }
+        catch (InvalidParameterValueException ex){
+            s_logger.info(ex.getMessage());
+            throw new ServerApiException(ApiErrorCode.PARAM_ERROR, ex.getMessage(), ex);
+        }
+        catch (IllegalArgumentException ex){
+            s_logger.info(ex.getMessage());
+            throw new ServerApiException(ApiErrorCode.PARAM_ERROR, ex.getMessage(), ex);
+        }
+        catch (PermissionDeniedException ex){
+            ArrayList<String> idList = ex.getIdProxyList();
+            if (idList != null) {
+                s_logger.info("PermissionDenied: " + ex.getMessage() + " on uuids: [" + StringUtils.listToCsvTags(idList) + "]");
+             } else {
+                s_logger.info("PermissionDenied: " + ex.getMessage());
+             }
+            throw new ServerApiException(ApiErrorCode.ACCOUNT_ERROR, ex.getMessage(), ex);
+        }
+        catch (AccountLimitException ex){
+            s_logger.info(ex.getMessage());
+            throw new ServerApiException(ApiErrorCode.ACCOUNT_RESOURCE_LIMIT_ERROR, ex.getMessage(), ex);
+        }
+        catch (InsufficientCapacityException ex){
+            s_logger.info(ex.getMessage());
+            String errorMsg = ex.getMessage();
+            if (UserContext.current().getCaller().getType() != Account.ACCOUNT_TYPE_ADMIN){
+                // hide internal details to non-admin user for security reason
+                errorMsg = BaseCmd.USER_ERROR_MESSAGE;
             }
+            throw new ServerApiException(ApiErrorCode.INSUFFICIENT_CAPACITY_ERROR, errorMsg, ex);
         }
+        catch (ResourceAllocationException ex){
+            s_logger.info(ex.getMessage());
+            String errorMsg = ex.getMessage();
+            if (UserContext.current().getCaller().getType() != Account.ACCOUNT_TYPE_ADMIN){
+                // hide internal details to non-admin user for security reason
+                errorMsg = BaseCmd.USER_ERROR_MESSAGE;
+            }
+            throw new ServerApiException(ApiErrorCode.RESOURCE_ALLOCATION_ERROR, errorMsg, ex);
+        }
+        catch (ResourceUnavailableException ex){
+            s_logger.info(ex.getMessage());
+            String errorMsg = ex.getMessage();
+            if (UserContext.current().getCaller().getType() != Account.ACCOUNT_TYPE_ADMIN){
+                // hide internal details to non-admin user for security reason
+                errorMsg = BaseCmd.USER_ERROR_MESSAGE;
+            }
+            throw new ServerApiException(ApiErrorCode.RESOURCE_UNAVAILABLE_ERROR, errorMsg, ex);
+        }
+        catch (AsyncCommandQueued ex){
+            s_logger.error("unhandled exception executing api command: " + ((command == null) ? "null" : command[0]), ex);
+            throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Internal server error, unable to execute request.");
+        }
+        catch (ServerApiException ex){
+            s_logger.info(ex.getDescription());
+            throw ex;
+        }
+        catch (Exception ex){
+            s_logger.error("unhandled exception executing api command: " + ((command == null) ? "null" : command[0]), ex);
+            String errorMsg = ex.getMessage();
+            if (UserContext.current().getCaller().getType() != Account.ACCOUNT_TYPE_ADMIN){
+                // hide internal details to non-admin user for security reason
+                errorMsg = BaseCmd.USER_ERROR_MESSAGE;
+            }
+            throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, errorMsg, ex);
+        }
+
         return response;
     }
 
-    private String queueCommand(BaseCmd cmdObj, Map<String, String> params) {
+    private String queueCommand(BaseCmd cmdObj, Map<String, String> params) throws Exception {
         UserContext ctx = UserContext.current();
         Long callerUserId = ctx.getCallerUserId();
         Account caller = ctx.getCaller();
@@ -444,7 +480,7 @@ public class ApiServer implements HttpRequestHandler {
             if (jobId == 0L) {
                 String errorMsg = "Unable to schedule async job for command " + job.getCmd();
                 s_logger.warn(errorMsg);
-                throw new ServerApiException(BaseCmd.INTERNAL_ERROR, errorMsg);
+                throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, errorMsg);
             }
 
             if (objectId != null) {
@@ -554,14 +590,14 @@ public class ApiServer implements HttpRequestHandler {
             	}
             	catch (PermissionDeniedException ex){
                     s_logger.debug("The given command:" + commandName + " does not exist or it is not available for user with id:" + userId);
-                    throw new ServerApiException(BaseCmd.UNSUPPORTED_ACTION_ERROR, "The given command does not exist or it is not available for user");
+                    throw new ServerApiException(ApiErrorCode.UNSUPPORTED_ACTION_ERROR, "The given command does not exist or it is not available for user");
                 }
                 return true;
             } else {
                 // check against every available command to see if the command exists or not
                 if (!_apiNameCmdClassMap.containsKey(commandName) && !commandName.equals("login") && !commandName.equals("logout")) {
                     s_logger.debug("The given command:" + commandName + " does not exist or it is not available for user with id:" + userId);
-                    throw new ServerApiException(BaseCmd.UNSUPPORTED_ACTION_ERROR, "The given command does not exist or it is not available for user");
+                    throw new ServerApiException(ApiErrorCode.UNSUPPORTED_ACTION_ERROR, "The given command does not exist or it is not available for user");
                 }
             }
 
@@ -657,7 +693,7 @@ public class ApiServer implements HttpRequestHandler {
             }
             catch (PermissionDeniedException ex){
                 s_logger.debug("The given command:" + commandName + " does not exist or it is not available for user");
-                throw new ServerApiException(BaseCmd.UNSUPPORTED_ACTION_ERROR, "The given command:" + commandName + " does not exist or it is not available for user with id:" + userId);
+                throw new ServerApiException(ApiErrorCode.UNSUPPORTED_ACTION_ERROR, "The given command:" + commandName + " does not exist or it is not available for user with id:" + userId);
             }
 
             // verify secret key exists
@@ -680,11 +716,10 @@ public class ApiServer implements HttpRequestHandler {
                 s_logger.info("User signature: " + signature + " is not equaled to computed signature: " + computedSignature);
             }
             return equalSig;
-        } catch (Exception ex) {
-            if (ex instanceof ServerApiException && ((ServerApiException) ex).getErrorCode() == BaseCmd.UNSUPPORTED_ACTION_ERROR) {
-                throw (ServerApiException) ex;
-            }
-            s_logger.error("unable to verify request signature", ex);
+        } catch (ServerApiException ex){
+            throw ex;
+        } catch (Exception ex){
+            s_logger.error("unable to verify request signature");
         }
         return false;
     }
@@ -931,13 +966,13 @@ public class ApiServer implements HttpRequestHandler {
         }
     }
 
-    public String getSerializedApiError(int errorCode, String errorText, Map<String, Object[]> apiCommandParams, String responseType, Exception ex) {
+    public String getSerializedApiError(int errorCode, String errorText, Map<String, Object[]> apiCommandParams, String responseType) {
         String responseName = null;
         Class<?> cmdClass = null;
         String responseText = null;
 
         try {
-            if (errorCode == BaseCmd.UNSUPPORTED_ACTION_ERROR || apiCommandParams == null || apiCommandParams.isEmpty()) {
+            if (apiCommandParams == null || apiCommandParams.isEmpty()) {
                 responseName = "errorresponse";
             } else {
                 Object cmdObj = apiCommandParams.get("command");
@@ -956,48 +991,55 @@ public class ApiServer implements HttpRequestHandler {
             apiResponse.setErrorCode(errorCode);
             apiResponse.setErrorText(errorText);
             apiResponse.setResponseName(responseName);
-            // Also copy over the IdentityProxy object List into this new apiResponse, from
-            // the exception caught. When invoked from handle(), the exception here can
-            // be either ServerApiException, PermissionDeniedException or InvalidParameterValue
-            // Exception. When invoked from ApiServlet's processRequest(), this can be
-            // a standard exception like NumberFormatException. We'll leave the standard ones alone.
-            if (ex != null) {
-            	if (ex instanceof ServerApiException || ex instanceof PermissionDeniedException
-            			|| ex instanceof InvalidParameterValueException) {
-            		// Cast the exception appropriately and retrieve the IdentityProxy
-            		if (ex instanceof ServerApiException) {
-            			ServerApiException ref = (ServerApiException) ex;
-            			ArrayList<String> idList = ref.getIdProxyList();
-            			if (idList != null) {
-            				for (int i=0; i < idList.size(); i++) {
-            					apiResponse.addProxyObject(idList.get(i));
-					}
-            			}
-            			// Also copy over the cserror code and the function/layer in which it was thrown.
-            			apiResponse.setCSErrorCode(ref.getCSErrorCode());
-            		} else if (ex instanceof PermissionDeniedException) {
-            			PermissionDeniedException ref = (PermissionDeniedException) ex;
-            			ArrayList<String> idList = ref.getIdProxyList();
-            			if (idList != null) {
-            				for (int i=0; i < idList.size(); i++) {
-            					apiResponse.addProxyObject(idList.get(i));
-					}
-            			}
-            			// Also copy over the cserror code and the function/layer in which it was thrown.
-            			apiResponse.setCSErrorCode(ref.getCSErrorCode());
-            		} else if (ex instanceof InvalidParameterValueException) {
-            			InvalidParameterValueException ref = (InvalidParameterValueException) ex;
-            			ArrayList<String> idList = ref.getIdProxyList();
-            			if (idList != null) {
-            				for (int i=0; i < idList.size(); i++) {
-            					apiResponse.addProxyObject(idList.get(i));
-					}
-            			}
-            			// Also copy over the cserror code and the function/layer in which it was thrown.
-            			apiResponse.setCSErrorCode(ref.getCSErrorCode());
-            		}
-            	}
+            SerializationContext.current().setUuidTranslation(true);
+            responseText = ApiResponseSerializer.toSerializedString(apiResponse, responseType);
+
+        } catch (Exception e) {
+            s_logger.error("Exception responding to http request", e);
+        }
+        return responseText;
+    }
+
+    public String getSerializedApiError(ServerApiException ex, Map<String, Object[]> apiCommandParams, String responseType) {
+        String responseName = null;
+        Class<?> cmdClass = null;
+        String responseText = null;
+
+        if (ex == null){
+            // this call should not be invoked with null exception
+            return getSerializedApiError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "Some internal error happened", apiCommandParams, responseType);
+        }
+        try {
+            if (ex.getErrorCode() == ApiErrorCode.UNSUPPORTED_ACTION_ERROR || apiCommandParams == null || apiCommandParams.isEmpty()) {
+                responseName = "errorresponse";
+            } else {
+                Object cmdObj = apiCommandParams.get("command");
+                // cmd name can be null when "command" parameter is missing in
+                // the request
+                if (cmdObj != null) {
+                    String cmdName = ((String[]) cmdObj)[0];
+                    cmdClass = getCmdClass(cmdName);
+                    if (cmdClass != null) {
+                        responseName = ((BaseCmd) cmdClass.newInstance()).getCommandName();
+                    } else {
+                        responseName = "errorresponse";
+                    }
+                }
             }
+            ExceptionResponse apiResponse = new ExceptionResponse();
+            apiResponse.setErrorCode(ex.getErrorCode().getHttpCode());
+            apiResponse.setErrorText(ex.getDescription());
+            apiResponse.setResponseName(responseName);
+            ArrayList<String> idList = ex.getIdProxyList();
+            if (idList != null) {
+                for (int i = 0; i < idList.size(); i++) {
+                    apiResponse.addProxyObject(idList.get(i));
+                }
+            }
+            // Also copy over the cserror code and the function/layer in which
+            // it was thrown.
+            apiResponse.setCSErrorCode(ex.getCSErrorCode());
+
             SerializationContext.current().setUuidTranslation(true);
             responseText = ApiResponseSerializer.toSerializedString(apiResponse, responseType);
 


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