init

src/org/fog/placement/ModulePlacement.java

@@ -0,0 +1,124 @@
+package org.fog.placement;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+import org.cloudbus.cloudsim.core.CloudSim;
+import org.fog.application.AppModule;
+import org.fog.application.Application;
+import org.fog.entities.FogDevice;
+
+public abstract class ModulePlacement {
+	
+	
+	public static int ONLY_CLOUD = 1;
+	public static int EDGEWARDS = 2;
+	public static int USER_MAPPING = 3;
+	
+	private List<FogDevice> fogDevices;
+	private Application application;
+	private Map<String, List<Integer>> moduleToDeviceMap;
+	private Map<Integer, List<AppModule>> deviceToModuleMap;
+	private Map<Integer, Map<String, Integer>> moduleInstanceCountMap;
+	
+	protected abstract void mapModules();
+	
+	protected boolean canBeCreated(FogDevice fogDevice, AppModule module){
+		return fogDevice.getVmAllocationPolicy().allocateHostForVm(module);
+	}
+	
+	protected int getParentDevice(int fogDeviceId){
+		return ((FogDevice)CloudSim.getEntity(fogDeviceId)).getParentId();
+	}
+	
+	protected FogDevice getFogDeviceById(int fogDeviceId){
+		return (FogDevice)CloudSim.getEntity(fogDeviceId);
+	}
+	
+	protected boolean createModuleInstanceOnDevice(AppModule _module, final FogDevice device, int instanceCount){
+		return false;
+	}
+	
+	protected boolean createModuleInstanceOnDevice(AppModule _module, final FogDevice device){
+		AppModule module = null;
+		if(getModuleToDeviceMap().containsKey(_module.getName()))
+			module = new AppModule(_module);
+		else
+			module = _module;
+			
+		if(canBeCreated(device, module)){
+			System.out.println("Creating "+module.getName()+" on device "+device.getName());
+			
+			if(!getDeviceToModuleMap().containsKey(device.getId()))
+				getDeviceToModuleMap().put(device.getId(), new ArrayList<AppModule>());
+			getDeviceToModuleMap().get(device.getId()).add(module);
+			
+			if(!getModuleToDeviceMap().containsKey(module.getName()))
+				getModuleToDeviceMap().put(module.getName(), new ArrayList<Integer>());
+			getModuleToDeviceMap().get(module.getName()).add(device.getId());
+			return true;
+		} else {
+			System.err.println("Module "+module.getName()+" cannot be created on device "+device.getName());
+			System.err.println("Terminating");
+			return false;
+		}
+	}
+	
+	protected FogDevice getDeviceByName(String deviceName) {
+		for(FogDevice dev : getFogDevices()){
+			if(dev.getName().equals(deviceName))
+				return dev;
+		}
+		return null;
+	}
+	
+	protected FogDevice getDeviceById(int id){
+		for(FogDevice dev : getFogDevices()){
+			if(dev.getId() == id)
+				return dev;
+		}
+		return null;
+	}
+	
+	public List<FogDevice> getFogDevices() {
+		return fogDevices;
+	}
+
+	public void setFogDevices(List<FogDevice> fogDevices) {
+		this.fogDevices = fogDevices;
+	}
+
+	public Application getApplication() {
+		return application;
+	}
+
+	public void setApplication(Application application) {
+		this.application = application;
+	}
+
+	public Map<String, List<Integer>> getModuleToDeviceMap() {
+		return moduleToDeviceMap;
+	}
+
+	public void setModuleToDeviceMap(Map<String, List<Integer>> moduleToDeviceMap) {
+		this.moduleToDeviceMap = moduleToDeviceMap;
+	}
+
+	public Map<Integer, List<AppModule>> getDeviceToModuleMap() {
+		return deviceToModuleMap;
+	}
+
+	public void setDeviceToModuleMap(Map<Integer, List<AppModule>> deviceToModuleMap) {
+		this.deviceToModuleMap = deviceToModuleMap;
+	}
+
+	public Map<Integer, Map<String, Integer>> getModuleInstanceCountMap() {
+		return moduleInstanceCountMap;
+	}
+
+	public void setModuleInstanceCountMap(Map<Integer, Map<String, Integer>> moduleInstanceCountMap) {
+		this.moduleInstanceCountMap = moduleInstanceCountMap;
+	}
+
+}