Added the server package.

src/main/java/org/fogbowcloud/green/server/core/plugins/openstack/copy/HypervisorTestImpl.java

+package org.fogbowcloud.green.server.core.plugins.openstack.copy;
+
+import org.openstack4j.model.compute.ext.Hypervisor;
+
+public class HypervisorTestImpl implements Hypervisor {
+
+	/**
+	 * 
+	 */
+	private static final long serialVersionUID = 4421687515550026956L;
+
+	private String hostname;
+	
+	public void setHostname(String hostname) {
+		this.hostname = hostname;
+	}
+	
+	@Override
+	public String getId() {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	@Override
+	public int getCurrentWorkload() {
+		// TODO Auto-generated method stub
+		return 0;
+	}
+
+	@Override
+	public int getLeastDiskAvailable() {
+		// TODO Auto-generated method stub
+		return 0;
+	}
+
+	@Override
+	public int getFreeDisk() {
+		// TODO Auto-generated method stub
+		return 0;
+	}
+
+	@Override
+	public int getFreeRam() {
+		// TODO Auto-generated method stub
+		return 0;
+	}
+
+	@Override
+	public String getHypervisorHostname() {
+		return hostname;
+	}
+
+	@Override
+	public String getHostIP() {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	@Override
+	public String getType() {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	@Override
+	public int getVersion() {
+		// TODO Auto-generated method stub
+		return 0;
+	}
+
+	@Override
+	public int getRunningVM() {
+		// TODO Auto-generated method stub
+		return 0;
+	}
+
+	@Override
+	public int getVirtualCPU() {
+		// TODO Auto-generated method stub
+		return 0;
+	}
+
+	@Override
+	public int getVirtualUsedCPU() {
+		// TODO Auto-generated method stub
+		return 0;
+	}
+
+	@Override
+	public int getLocalDisk() {
+		// TODO Auto-generated method stub
+		return 0;
+	}
+
+	@Override
+	public int getLocalDiskUsed() {
+		// TODO Auto-generated method stub
+		return 0;
+	}
+
+	@Override
+	public int getLocalMemory() {
+		// TODO Auto-generated method stub
+		return 0;
+	}
+
+	@Override
+	public int getLocalMemoryUsed() {
+		// TODO Auto-generated method stub
+		return 0;
+	}
+
+	@Override
+	public Service getService() {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+}

src/main/java/org/fogbowcloud/green/server/core/plugins/openstack/copy/OpenStackCommunicationPlugin.java

+package org.fogbowcloud.green.server.core.plugins.openstack.copy;
+
+import java.util.List;
+
+import org.openstack4j.api.OSClient;
+import org.openstack4j.openstack.OSFactory;
+import org.openstack4j.model.compute.ext.Hypervisor;
+
+public class OpenStackCommunicationPlugin {
+
+	private OSClient os;
+
+	public OpenStackCommunicationPlugin(String endpoint, String username,
+			String password, String tenantname) {
+
+		this(OSFactory.builder().endpoint(endpoint)
+				.credentials(username, password).tenantName(tenantname)
+				.authenticate());
+
+	}
+
+	public OpenStackCommunicationPlugin(OSClient os) {
+		this.os = os;
+	}
+
+	public List<? extends Hypervisor> getHostInformation() {
+		return os.compute().hypervisors().list();
+	}
+
+
+}
\ No newline at end of file

src/test/java/org/fogbowcloud/green/core/plugins/openstack/TestOpenStackCommunicationPlugin.java

@@ -3,6 +3,8 @@ package org.fogbowcloud.green.core.plugins.openstack;
 import java.util.LinkedList;
 import java.util.List;
 
+import org.fogbowcloud.green.server.core.plugins.openstack.copy.HypervisorTestImpl;
+import org.fogbowcloud.green.server.core.plugins.openstack.copy.OpenStackCommunicationPlugin;
 import org.junit.Assert;
 import org.junit.Test;
 import org.mockito.Mockito;