FR23 plugable isolation methods

FR23 plugable isolation methods
This is brought to the public version as CLOUDSTACK-10007
diff --git a/api/src/com/cloud/network/PhysicalNetwork.java b/api/src/com/cloud/network/PhysicalNetwork.java
index 7c9349d..a332a6a 100644
--- a/api/src/com/cloud/network/PhysicalNetwork.java
+++ b/api/src/com/cloud/network/PhysicalNetwork.java
@@ -16,12 +16,16 @@
 // under the License.
 package com.cloud.network;
 
-import java.util.List;
-
+import com.cloud.exception.CloudException;
+import com.cloud.utils.Pair;
+import com.cloud.utils.StringUtils;
 import org.apache.cloudstack.api.Identity;
 import org.apache.cloudstack.api.InternalIdentity;
 
-import com.cloud.utils.Pair;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Objects;
+import java.util.Set;
 
 /**
  *
@@ -32,8 +36,101 @@
         Disabled, Enabled;
     }
 
-    public enum IsolationMethod {
-        VLAN, L3, GRE, STT, VNS, MIDO, SSP, VXLAN, ODL, L3VPN, VSP, VCS;
+    public class IsolationMethod {
+        protected static final String UNKNOWN_PROVIDER = "Unknown";
+        static Set<IsolationMethod> registeredIsolationMethods = new HashSet<>();
+
+        String methodPrefix;
+        String provider;
+
+        public IsolationMethod(String prfx) {
+            this(prfx, UNKNOWN_PROVIDER);
+        }
+
+        public IsolationMethod(String prfx, String prvdr) {
+            methodPrefix = prfx;
+            provider = StringUtils.isNotBlank(prvdr)? prvdr : UNKNOWN_PROVIDER;
+            registeredIsolationMethods.add(this);
+        }
+
+        /**
+         * gets a IsolationMethod object that defines this prefix and if any it returns the first one found that has a known provider. If none has a known provider
+         * it will return the one with the unknown provider. if none is found it return null.
+         *
+         * @param prfx
+         * @return
+         */
+        public static IsolationMethod getIsolationMethod(String prfx) throws IsolationMethodNotRegistered {
+            IsolationMethod rc = null;
+            for (IsolationMethod method: registeredIsolationMethods) {
+                if (method.methodPrefix.equals(prfx)) {
+                    rc = method;
+                    if(! rc.provider.equals(UNKNOWN_PROVIDER)) {
+                        break;
+                    }
+                }
+            }
+            if (rc == null) {
+                throw new IsolationMethodNotRegistered("No registration of prefix '" + prfx + "' found.");
+            }
+            return rc;
+        }
+
+        public static IsolationMethod getIsolationMethod(String prfx, String provider) throws IsolationMethodNotRegistered {
+            for (IsolationMethod method: registeredIsolationMethods) {
+                if (method.methodPrefix.equals(prfx) && method.provider.equals(provider)) {
+                    return method;
+                }
+            }
+            throw new IsolationMethodNotRegistered("No registration of prefix '" + prfx + "' for provider '" + provider + "' found.");
+        }
+
+        static class IsolationMethodNotRegistered extends CloudException {
+            IsolationMethodNotRegistered (String message) {
+                super(message);
+            }
+        }
+
+        public String getMethodPrefix() {
+            return methodPrefix;
+        }
+
+        public String getProvider() {
+            return provider;
+        }
+
+        @Override
+        public boolean equals(Object o) {
+            if (this == o)
+                return true;
+            if (o == null || getClass() != o.getClass())
+                return false;
+            IsolationMethod that = (IsolationMethod)o;
+            return Objects.equals(methodPrefix, that.methodPrefix) && Objects.equals(provider, that.provider);
+        }
+
+        @Override
+        public int hashCode() {
+            return Objects.hash(methodPrefix, provider);
+        }
+
+        @Override
+        public String toString() {
+            return methodPrefix;
+        }
+
+        public static boolean remove(String prfx, String prvdr) {
+            prvdr = StringUtils.isNotBlank(prvdr)? prvdr : UNKNOWN_PROVIDER;
+            try {
+                return remove(getIsolationMethod(prfx, prvdr));
+            } catch (IsolationMethodNotRegistered isolationMethodNotRegistered) {
+                return false;
+            }
+        }
+
+        public static boolean remove(IsolationMethod method) {
+            return registeredIsolationMethods.remove(method);
+        }
     }
 
     public enum BroadcastDomainRange {
diff --git a/api/test/com/cloud/network/IsolationMethodTest.java b/api/test/com/cloud/network/IsolationMethodTest.java
new file mode 100644
index 0000000..f7130fc
--- /dev/null
+++ b/api/test/com/cloud/network/IsolationMethodTest.java
@@ -0,0 +1,73 @@
+package com.cloud.network;
+
+import org.junit.After;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+
+public class IsolationMethodTest {
+    @After
+    public void cleanTheRegistry() {
+        PhysicalNetwork.IsolationMethod.registeredIsolationMethods.removeAll(PhysicalNetwork.IsolationMethod.registeredIsolationMethods);
+    }
+
+    @Test
+    public void equalsTest() throws Exception {
+        PhysicalNetwork.IsolationMethod method = new PhysicalNetwork.IsolationMethod("bla");
+        assertEquals(PhysicalNetwork.IsolationMethod.UNKNOWN_PROVIDER, method.provider);
+        assertEquals(new PhysicalNetwork.IsolationMethod("bla", PhysicalNetwork.IsolationMethod.UNKNOWN_PROVIDER), method);
+    }
+
+    @Test
+    public void toStringTest() throws Exception {
+        PhysicalNetwork.IsolationMethod method = new PhysicalNetwork.IsolationMethod("bla", "blob");
+        assertEquals("bla", method.toString());
+
+    }
+
+    @Test
+    public void getGeneric() throws Exception {
+        PhysicalNetwork.IsolationMethod method = new PhysicalNetwork.IsolationMethod("bla", "blob");
+        method = new PhysicalNetwork.IsolationMethod("bla");
+
+        assertEquals("blob",PhysicalNetwork.IsolationMethod.getIsolationMethod("bla").getProvider());
+    }
+
+    @Test
+    public void removeUnregistered() throws Exception {
+        assertFalse(PhysicalNetwork.IsolationMethod.remove("bla", "blob"));
+    }
+
+    @Test
+    public void removeSuccesfulGeneric() throws Exception {
+        PhysicalNetwork.IsolationMethod method = new PhysicalNetwork.IsolationMethod("bla", "blob");
+        method = new PhysicalNetwork.IsolationMethod("bla");
+
+        PhysicalNetwork.IsolationMethod.remove("bla", "blob");
+        assertEquals(PhysicalNetwork.IsolationMethod.UNKNOWN_PROVIDER,PhysicalNetwork.IsolationMethod.getIsolationMethod("bla").getProvider());
+    }
+
+    @Test(expected= PhysicalNetwork.IsolationMethod.IsolationMethodNotRegistered.class)
+    public void removeSuccesfulSpecificByString() throws Exception {
+        PhysicalNetwork.IsolationMethod method = new PhysicalNetwork.IsolationMethod("bla", "blob");
+
+        PhysicalNetwork.IsolationMethod.remove("bla", "blob");
+        PhysicalNetwork.IsolationMethod.getIsolationMethod("bla");
+    }
+
+    @Test(expected= PhysicalNetwork.IsolationMethod.IsolationMethodNotRegistered.class)
+    public void removeSuccesfulSpecificObject() throws Exception {
+        PhysicalNetwork.IsolationMethod method = new PhysicalNetwork.IsolationMethod("bla");
+
+        PhysicalNetwork.IsolationMethod.remove(method);
+        PhysicalNetwork.IsolationMethod.getIsolationMethod("bla");
+    }
+
+    @Test
+    public void getIsolationMethodTest() throws Exception {
+        PhysicalNetwork.IsolationMethod method = new PhysicalNetwork.IsolationMethod("bla");
+        final PhysicalNetwork.IsolationMethod isolationMethod = PhysicalNetwork.IsolationMethod.getIsolationMethod("bla");
+        assertEquals(method, isolationMethod);
+    }
+}
\ No newline at end of file
diff --git a/plugins/network-elements/bigswitch-vns/src/com/cloud/network/guru/BigSwitchVnsGuestNetworkGuru.java b/plugins/network-elements/bigswitch-vns/src/com/cloud/network/guru/BigSwitchVnsGuestNetworkGuru.java
index 9805144..50f3451 100644
--- a/plugins/network-elements/bigswitch-vns/src/com/cloud/network/guru/BigSwitchVnsGuestNetworkGuru.java
+++ b/plugins/network-elements/bigswitch-vns/src/com/cloud/network/guru/BigSwitchVnsGuestNetworkGuru.java
@@ -19,15 +19,6 @@
 
 package com.cloud.network.guru;
 
-import java.net.URI;
-import java.net.URISyntaxException;
-import java.util.List;
-
-import javax.ejb.Local;
-import javax.inject.Inject;
-
-import org.apache.log4j.Logger;
-
 import com.cloud.agent.AgentManager;
 import com.cloud.agent.api.CreateVnsNetworkAnswer;
 import com.cloud.agent.api.CreateVnsNetworkCommand;
@@ -61,6 +52,13 @@
 import com.cloud.vm.NicProfile;
 import com.cloud.vm.ReservationContext;
 import com.cloud.vm.VirtualMachineProfile;
+import org.apache.log4j.Logger;
+
+import javax.ejb.Local;
+import javax.inject.Inject;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.List;
 
 @Local(value = NetworkGuru.class)
 public class BigSwitchVnsGuestNetworkGuru extends GuestNetworkGuru {
@@ -85,7 +83,7 @@
 
     public BigSwitchVnsGuestNetworkGuru() {
         super();
-        _isolationMethods = new IsolationMethod[] {IsolationMethod.VNS};
+        _isolationMethods = new IsolationMethod[] {new IsolationMethod("VNS")};
     }
 
     @Override
diff --git a/plugins/network-elements/brocade-vcs/src/com/cloud/network/guru/BrocadeVcsGuestNetworkGuru.java b/plugins/network-elements/brocade-vcs/src/com/cloud/network/guru/BrocadeVcsGuestNetworkGuru.java
index 92bf113..3547e8d 100644
--- a/plugins/network-elements/brocade-vcs/src/com/cloud/network/guru/BrocadeVcsGuestNetworkGuru.java
+++ b/plugins/network-elements/brocade-vcs/src/com/cloud/network/guru/BrocadeVcsGuestNetworkGuru.java
@@ -16,13 +16,6 @@
 // under the License.
 package com.cloud.network.guru;
 
-import java.util.List;
-
-import javax.ejb.Local;
-import javax.inject.Inject;
-
-import org.apache.log4j.Logger;
-
 import com.cloud.agent.AgentManager;
 import com.cloud.agent.api.AssociateMacToNetworkAnswer;
 import com.cloud.agent.api.AssociateMacToNetworkCommand;
@@ -62,6 +55,11 @@
 import com.cloud.vm.NicProfile;
 import com.cloud.vm.ReservationContext;
 import com.cloud.vm.VirtualMachineProfile;
+import org.apache.log4j.Logger;
+
+import javax.ejb.Local;
+import javax.inject.Inject;
+import java.util.List;
 
 @Local(value = NetworkGuru.class)
 public class BrocadeVcsGuestNetworkGuru extends GuestNetworkGuru {
@@ -84,7 +82,7 @@
 
     public BrocadeVcsGuestNetworkGuru() {
         super();
-        _isolationMethods = new IsolationMethod[] {IsolationMethod.VCS};
+        _isolationMethods = new IsolationMethod[] {new IsolationMethod("VCS")};
     }
 
     @Override
diff --git a/plugins/network-elements/midonet/src/com/cloud/network/guru/MidoNetGuestNetworkGuru.java b/plugins/network-elements/midonet/src/com/cloud/network/guru/MidoNetGuestNetworkGuru.java
index e24fa5c..14011ed 100644
--- a/plugins/network-elements/midonet/src/com/cloud/network/guru/MidoNetGuestNetworkGuru.java
+++ b/plugins/network-elements/midonet/src/com/cloud/network/guru/MidoNetGuestNetworkGuru.java
@@ -19,12 +19,6 @@
 
 package com.cloud.network.guru;
 
-import javax.ejb.Local;
-import javax.inject.Inject;
-
-import org.apache.log4j.Logger;
-import org.springframework.stereotype.Component;
-
 import com.cloud.dc.DataCenter.NetworkType;
 import com.cloud.deploy.DeployDestination;
 import com.cloud.deploy.DeploymentPlan;
@@ -43,6 +37,11 @@
 import com.cloud.vm.NicProfile;
 import com.cloud.vm.ReservationContext;
 import com.cloud.vm.VirtualMachineProfile;
+import org.apache.log4j.Logger;
+import org.springframework.stereotype.Component;
+
+import javax.ejb.Local;
+import javax.inject.Inject;
 
 @Component
 @Local(value = NetworkGuru.class)
@@ -54,7 +53,7 @@
 
     public MidoNetGuestNetworkGuru() {
         super();
-        _isolationMethods = new PhysicalNetwork.IsolationMethod[] {PhysicalNetwork.IsolationMethod.MIDO};
+        _isolationMethods = new PhysicalNetwork.IsolationMethod[] {new PhysicalNetwork.IsolationMethod("MIDO")};
     }
 
     @Override
diff --git a/plugins/network-elements/nicira-nvp/src/com/cloud/network/guru/NiciraNvpGuestNetworkGuru.java b/plugins/network-elements/nicira-nvp/src/com/cloud/network/guru/NiciraNvpGuestNetworkGuru.java
index 2845e9b..7d46140 100644
--- a/plugins/network-elements/nicira-nvp/src/com/cloud/network/guru/NiciraNvpGuestNetworkGuru.java
+++ b/plugins/network-elements/nicira-nvp/src/com/cloud/network/guru/NiciraNvpGuestNetworkGuru.java
@@ -19,15 +19,6 @@
 
 package com.cloud.network.guru;
 
-import java.net.URI;
-import java.net.URISyntaxException;
-import java.util.List;
-
-import javax.ejb.Local;
-import javax.inject.Inject;
-
-import org.apache.log4j.Logger;
-
 import com.cloud.agent.AgentManager;
 import com.cloud.agent.api.CreateLogicalSwitchAnswer;
 import com.cloud.agent.api.CreateLogicalSwitchCommand;
@@ -66,6 +57,13 @@
 import com.cloud.vm.NicProfile;
 import com.cloud.vm.ReservationContext;
 import com.cloud.vm.VirtualMachineProfile;
+import org.apache.log4j.Logger;
+
+import javax.ejb.Local;
+import javax.inject.Inject;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.List;
 
 @Local(value = NetworkGuru.class)
 public class NiciraNvpGuestNetworkGuru extends GuestNetworkGuru {
@@ -98,7 +96,7 @@
 
     public NiciraNvpGuestNetworkGuru() {
         super();
-        _isolationMethods = new IsolationMethod[] {IsolationMethod.STT};
+        _isolationMethods = new IsolationMethod[] {new IsolationMethod("STT")};
     }
 
     @Override
diff --git a/plugins/network-elements/nuage-vsp/src/com/cloud/network/guru/NuageVspGuestNetworkGuru.java b/plugins/network-elements/nuage-vsp/src/com/cloud/network/guru/NuageVspGuestNetworkGuru.java
index d9882ea..22f1ed4 100644
--- a/plugins/network-elements/nuage-vsp/src/com/cloud/network/guru/NuageVspGuestNetworkGuru.java
+++ b/plugins/network-elements/nuage-vsp/src/com/cloud/network/guru/NuageVspGuestNetworkGuru.java
@@ -106,7 +106,7 @@
 
     public NuageVspGuestNetworkGuru() {
         super();
-        _isolationMethods = new IsolationMethod[] {IsolationMethod.VSP};
+        _isolationMethods = new IsolationMethod[] {new IsolationMethod("VSP")};
     }
 
     @Override
@@ -413,4 +413,4 @@
         }
         return nuageVspHost;
     }
-}
\ No newline at end of file
+}
diff --git a/plugins/network-elements/opendaylight/src/main/java/org/apache/cloudstack/network/opendaylight/OpendaylightGuestNetworkGuru.java b/plugins/network-elements/opendaylight/src/main/java/org/apache/cloudstack/network/opendaylight/OpendaylightGuestNetworkGuru.java
index 5dc0f44..4d1c1c8 100644
--- a/plugins/network-elements/opendaylight/src/main/java/org/apache/cloudstack/network/opendaylight/OpendaylightGuestNetworkGuru.java
+++ b/plugins/network-elements/opendaylight/src/main/java/org/apache/cloudstack/network/opendaylight/OpendaylightGuestNetworkGuru.java
@@ -19,26 +19,6 @@
 
 package org.apache.cloudstack.network.opendaylight;
 
-import java.util.List;
-import java.util.UUID;
-
-import javax.inject.Inject;
-
-import org.apache.log4j.Logger;
-
-import org.apache.cloudstack.network.opendaylight.agent.commands.AddHypervisorCommand;
-import org.apache.cloudstack.network.opendaylight.agent.commands.ConfigureNetworkCommand;
-import org.apache.cloudstack.network.opendaylight.agent.commands.ConfigurePortCommand;
-import org.apache.cloudstack.network.opendaylight.agent.commands.DestroyNetworkCommand;
-import org.apache.cloudstack.network.opendaylight.agent.commands.DestroyPortCommand;
-import org.apache.cloudstack.network.opendaylight.agent.responses.AddHypervisorAnswer;
-import org.apache.cloudstack.network.opendaylight.agent.responses.ConfigureNetworkAnswer;
-import org.apache.cloudstack.network.opendaylight.agent.responses.ConfigurePortAnswer;
-import org.apache.cloudstack.network.opendaylight.agent.responses.DestroyNetworkAnswer;
-import org.apache.cloudstack.network.opendaylight.agent.responses.DestroyPortAnswer;
-import org.apache.cloudstack.network.opendaylight.dao.OpenDaylightControllerMappingDao;
-import org.apache.cloudstack.network.opendaylight.dao.OpenDaylightControllerVO;
-
 import com.cloud.agent.AgentManager;
 import com.cloud.dc.DataCenter;
 import com.cloud.dc.DataCenter.NetworkType;
@@ -68,6 +48,23 @@
 import com.cloud.vm.NicProfile;
 import com.cloud.vm.ReservationContext;
 import com.cloud.vm.VirtualMachineProfile;
+import org.apache.cloudstack.network.opendaylight.agent.commands.AddHypervisorCommand;
+import org.apache.cloudstack.network.opendaylight.agent.commands.ConfigureNetworkCommand;
+import org.apache.cloudstack.network.opendaylight.agent.commands.ConfigurePortCommand;
+import org.apache.cloudstack.network.opendaylight.agent.commands.DestroyNetworkCommand;
+import org.apache.cloudstack.network.opendaylight.agent.commands.DestroyPortCommand;
+import org.apache.cloudstack.network.opendaylight.agent.responses.AddHypervisorAnswer;
+import org.apache.cloudstack.network.opendaylight.agent.responses.ConfigureNetworkAnswer;
+import org.apache.cloudstack.network.opendaylight.agent.responses.ConfigurePortAnswer;
+import org.apache.cloudstack.network.opendaylight.agent.responses.DestroyNetworkAnswer;
+import org.apache.cloudstack.network.opendaylight.agent.responses.DestroyPortAnswer;
+import org.apache.cloudstack.network.opendaylight.dao.OpenDaylightControllerMappingDao;
+import org.apache.cloudstack.network.opendaylight.dao.OpenDaylightControllerVO;
+import org.apache.log4j.Logger;
+
+import javax.inject.Inject;
+import java.util.List;
+import java.util.UUID;
 
 public class OpendaylightGuestNetworkGuru extends GuestNetworkGuru {
     private static final Logger s_logger = Logger.getLogger(OpendaylightGuestNetworkGuru.class);
@@ -86,7 +83,7 @@
     NetworkDao networkDao;
 
     public OpendaylightGuestNetworkGuru() {
-        _isolationMethods = new IsolationMethod[] {IsolationMethod.ODL};
+        _isolationMethods = new IsolationMethod[] {new IsolationMethod("ODL")};
     }
 
     @Override
diff --git a/plugins/network-elements/ovs/src/com/cloud/network/guru/OvsGuestNetworkGuru.java b/plugins/network-elements/ovs/src/com/cloud/network/guru/OvsGuestNetworkGuru.java
index be49757..29eece9 100644
--- a/plugins/network-elements/ovs/src/com/cloud/network/guru/OvsGuestNetworkGuru.java
+++ b/plugins/network-elements/ovs/src/com/cloud/network/guru/OvsGuestNetworkGuru.java
@@ -16,16 +16,6 @@
 // under the License.
 package com.cloud.network.guru;
 
-import com.cloud.network.vpc.VpcVO;
-import com.cloud.network.vpc.dao.VpcDao;
-import javax.ejb.Local;
-import javax.inject.Inject;
-
-import org.apache.log4j.Logger;
-import org.springframework.stereotype.Component;
-
-import org.apache.cloudstack.context.CallContext;
-
 import com.cloud.dc.DataCenter;
 import com.cloud.dc.DataCenter.NetworkType;
 import com.cloud.deploy.DeployDestination;
@@ -46,12 +36,20 @@
 import com.cloud.network.dao.NetworkVO;
 import com.cloud.network.dao.PhysicalNetworkVO;
 import com.cloud.network.ovs.OvsTunnelManager;
+import com.cloud.network.vpc.VpcVO;
+import com.cloud.network.vpc.dao.VpcDao;
 import com.cloud.offering.NetworkOffering;
 import com.cloud.offerings.dao.NetworkOfferingServiceMapDao;
 import com.cloud.user.Account;
 import com.cloud.vm.NicProfile;
 import com.cloud.vm.ReservationContext;
 import com.cloud.vm.VirtualMachineProfile;
+import org.apache.cloudstack.context.CallContext;
+import org.apache.log4j.Logger;
+import org.springframework.stereotype.Component;
+
+import javax.ejb.Local;
+import javax.inject.Inject;
 
 @Component
 @Local(value = NetworkGuru.class)
@@ -68,8 +66,8 @@
 
     OvsGuestNetworkGuru() {
         super();
-        _isolationMethods = new IsolationMethod[] {IsolationMethod.GRE,
-            IsolationMethod.L3, IsolationMethod.VLAN};
+        _isolationMethods = new IsolationMethod[] {new IsolationMethod("GRE"),
+            new IsolationMethod("L3"), new IsolationMethod("VLAN")};
     }
 
     @Override
diff --git a/plugins/network-elements/stratosphere-ssp/src/org/apache/cloudstack/network/guru/SspGuestNetworkGuru.java b/plugins/network-elements/stratosphere-ssp/src/org/apache/cloudstack/network/guru/SspGuestNetworkGuru.java
index 7226873..56926b7 100644
--- a/plugins/network-elements/stratosphere-ssp/src/org/apache/cloudstack/network/guru/SspGuestNetworkGuru.java
+++ b/plugins/network-elements/stratosphere-ssp/src/org/apache/cloudstack/network/guru/SspGuestNetworkGuru.java
@@ -16,14 +16,6 @@
 // under the License.
 package org.apache.cloudstack.network.guru;
 
-import javax.ejb.Local;
-import javax.inject.Inject;
-
-import org.apache.log4j.Logger;
-
-import org.apache.cloudstack.network.element.SspElement;
-import org.apache.cloudstack.network.element.SspManager;
-
 import com.cloud.dc.DataCenter.NetworkType;
 import com.cloud.deploy.DeployDestination;
 import com.cloud.exception.InsufficientAddressCapacityException;
@@ -42,6 +34,12 @@
 import com.cloud.vm.ReservationContext;
 import com.cloud.vm.ReservationContextImpl;
 import com.cloud.vm.VirtualMachineProfile;
+import org.apache.cloudstack.network.element.SspElement;
+import org.apache.cloudstack.network.element.SspManager;
+import org.apache.log4j.Logger;
+
+import javax.ejb.Local;
+import javax.inject.Inject;
 
 /**
  * Stratosphere SDN Platform NetworkGuru
@@ -59,7 +57,7 @@
 
     public SspGuestNetworkGuru() {
         super();
-        _isolationMethods = new IsolationMethod[] {IsolationMethod.SSP};
+        _isolationMethods = new IsolationMethod[] {new IsolationMethod("SSP")};
     }
 
     @Override
diff --git a/plugins/network-elements/vxlan/src/com/cloud/network/guru/VxlanGuestNetworkGuru.java b/plugins/network-elements/vxlan/src/com/cloud/network/guru/VxlanGuestNetworkGuru.java
index 0700ef8..266226b 100644
--- a/plugins/network-elements/vxlan/src/com/cloud/network/guru/VxlanGuestNetworkGuru.java
+++ b/plugins/network-elements/vxlan/src/com/cloud/network/guru/VxlanGuestNetworkGuru.java
@@ -16,13 +16,6 @@
 // under the License.
 package com.cloud.network.guru;
 
-import javax.ejb.Local;
-
-import org.apache.log4j.Logger;
-import org.springframework.stereotype.Component;
-
-import org.apache.cloudstack.context.CallContext;
-
 import com.cloud.dc.DataCenter;
 import com.cloud.dc.DataCenter.NetworkType;
 import com.cloud.deploy.DeployDestination;
@@ -45,6 +38,11 @@
 import com.cloud.vm.NicProfile;
 import com.cloud.vm.ReservationContext;
 import com.cloud.vm.VirtualMachineProfile;
+import org.apache.cloudstack.context.CallContext;
+import org.apache.log4j.Logger;
+import org.springframework.stereotype.Component;
+
+import javax.ejb.Local;
 
 @Component
 @Local(value = NetworkGuru.class)
@@ -53,7 +51,7 @@
 
     public VxlanGuestNetworkGuru() {
         super();
-        _isolationMethods = new IsolationMethod[] {IsolationMethod.VXLAN};
+        _isolationMethods = new IsolationMethod[] {new IsolationMethod("VXLAN")};
     }
 
     @Override
diff --git a/server/src/com/cloud/network/guru/ExternalGuestNetworkGuru.java b/server/src/com/cloud/network/guru/ExternalGuestNetworkGuru.java
index 3524b77..8f25381 100644
--- a/server/src/com/cloud/network/guru/ExternalGuestNetworkGuru.java
+++ b/server/src/com/cloud/network/guru/ExternalGuestNetworkGuru.java
@@ -16,16 +16,6 @@
 // under the License.
 package com.cloud.network.guru;
 
-import java.util.List;
-
-import javax.ejb.Local;
-import javax.inject.Inject;
-
-import org.apache.log4j.Logger;
-
-import org.apache.cloudstack.context.CallContext;
-import org.apache.cloudstack.engine.orchestration.service.NetworkOrchestrationService;
-
 import com.cloud.dc.DataCenter;
 import com.cloud.dc.DataCenter.NetworkType;
 import com.cloud.dc.dao.DataCenterDao;
@@ -43,15 +33,15 @@
 import com.cloud.network.Networks.BroadcastDomainType;
 import com.cloud.network.PhysicalNetwork;
 import com.cloud.network.PhysicalNetwork.IsolationMethod;
+import com.cloud.network.dao.FirewallRulesCidrsDao;
+import com.cloud.network.dao.FirewallRulesCidrsVO;
+import com.cloud.network.dao.FirewallRulesDao;
 import com.cloud.network.dao.IPAddressDao;
 import com.cloud.network.dao.IPAddressVO;
 import com.cloud.network.dao.NetworkDao;
 import com.cloud.network.dao.NetworkVO;
-import com.cloud.network.dao.FirewallRulesCidrsDao;
-import com.cloud.network.dao.FirewallRulesDao;
 import com.cloud.network.rules.FirewallRule;
 import com.cloud.network.rules.FirewallRuleVO;
-import com.cloud.network.dao.FirewallRulesCidrsVO;
 import com.cloud.network.rules.PortForwardingRuleVO;
 import com.cloud.network.rules.dao.PortForwardingRulesDao;
 import com.cloud.offering.NetworkOffering;
@@ -65,6 +55,13 @@
 import com.cloud.vm.NicVO;
 import com.cloud.vm.ReservationContext;
 import com.cloud.vm.VirtualMachineProfile;
+import org.apache.cloudstack.context.CallContext;
+import org.apache.cloudstack.engine.orchestration.service.NetworkOrchestrationService;
+import org.apache.log4j.Logger;
+
+import javax.ejb.Local;
+import javax.inject.Inject;
+import java.util.List;
 
 @Local(value = NetworkGuru.class)
 public class ExternalGuestNetworkGuru extends GuestNetworkGuru {
@@ -88,7 +85,7 @@
 
     public ExternalGuestNetworkGuru() {
         super();
-        _isolationMethods = new IsolationMethod[] {IsolationMethod.GRE, IsolationMethod.L3, IsolationMethod.VLAN};
+        _isolationMethods = new IsolationMethod[] {new IsolationMethod("GRE"), new IsolationMethod("L3"), new IsolationMethod("VLAN")};
     }
 
     @Override