bug 5904,5474: added listCapabilities API

client/tomcatconf/commands.properties.in

@@ -139,6 +139,7 @@ listSystemVms=com.cloud.api.commands.ListSystemVMsCmd;1
 updateConfiguration=com.cloud.api.commands.UpdateCfgCmd;1
 listConfigurations=com.cloud.api.commands.ListCfgsByCmd;1
 addConfig=com.cloud.api.commands.AddConfigCmd;15
+listCapabilities=com.cloud.api.commands.ListCapabilitiesCmd;15
 
 #### pod commands
 createPod=com.cloud.api.commands.CreatePodCmd;1
@@ -207,4 +208,4 @@ listNetworkGroups=com.cloud.api.commands.ListNetworkGroupsCmd;11
 
 registerPreallocatedLun=com.cloud.server.api.commands.RegisterPreallocatedLunCmd;1
 deletePreallocatedLun=com.cloud.server.api.commands.DeletePreallocatedLunCmd;1
-listPreallocatedLuns=com.cloud.api.commands.ListPreallocatedLunsCmd;1
+listPreallocatedLuns=com.cloud.api.commands.ListPreallocatedLunsCmd;1

core/src/com/cloud/server/ManagementServer.java

@@ -2187,4 +2187,5 @@ public interface ManagementServer {
 	
 	boolean checkIfMaintenable(long hostId);
 
+    Map<String, String> listCapabilities();
 }

server/src/com/cloud/api/commands/ListCapabilitiesCmd.java

@@ -0,0 +1,58 @@
+/**
+ *  Copyright (C) 2010 Cloud.com, Inc.  All rights reserved.
+ * 
+ * This software is licensed under the GNU General Public License v3 or later.
+ * 
+ * It is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or any later version.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * 
+ */
+
+package com.cloud.api.commands;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.log4j.Logger;
+
+import com.cloud.api.BaseCmd;
+import com.cloud.utils.Pair;
+
+public class ListCapabilitiesCmd extends BaseCmd {
+	public static final Logger s_logger = Logger.getLogger(ListCapabilitiesCmd.class.getName());
+
+    private static final String s_name = "listcapabilitiesresponse";
+    private static final List<Pair<Enum, Boolean>> s_properties = new ArrayList<Pair<Enum, Boolean>>();
+
+    public String getName() {
+        return s_name;
+    }
+    public List<Pair<Enum, Boolean>> getProperties() {
+        return s_properties;
+    }
+
+    @Override
+    public List<Pair<String, Object>> execute(Map<String, Object> params) {
+            
+        Map<String, String> capabilities = null;
+	    capabilities = getManagementServer().listCapabilities();
+
+        Iterator<String> iterator = capabilities.keySet().iterator();
+        List<Pair<String, Object>> capabilityPair = new ArrayList<Pair<String, Object>>();
+        while (iterator.hasNext()) {
+            String capability = iterator.next();
+            capabilityPair.add(new Pair<String, Object>(capability, capabilities.get(capability)));
+        }
+        return capabilityPair;
+    }
+}

server/src/com/cloud/server/ManagementServerImpl.java

@@ -8594,6 +8594,26 @@ public class ManagementServerImpl implements ManagementServer {
 		return false;
 	}
 
+    @Override
+    public Map<String, String> listCapabilities() {
+        Map<String, String> capabilities = new HashMap<String, String>();
+        
+        String networkGroupsEnabled = _configs.get("direct.attach.network.groups.enabled");
+        if(networkGroupsEnabled == null) 
+            networkGroupsEnabled = "false";             
+
+        capabilities.put("networkGroupsEnabled", networkGroupsEnabled);
+        
+        final Class<?> c = this.getClass();
+        String fullVersion = c.getPackage().getImplementationVersion();
+        String version = "unknown"; 
+        if(fullVersion.length() > 0){
+            version = fullVersion.substring(0,fullVersion.lastIndexOf("."));
+        }
+        capabilities.put("cloudStackVersion", version);
+        return capabilities;
+    }
+
 
 }