added placeholder identifier and ping identifier

java/com.sap.sailing.domain.racelogtrackingadapter/src/com/sap/sailing/domain/racelog/tracking/PingDeviceIdentifier.java

@@ -0,0 +1,14 @@
+package com.sap.sailing.domain.racelog.tracking;
+
+import java.util.UUID;
+
+/**
+ * A device identifier used to identify a non-existent, virtual device, which is used only once as an
+ * identifier to add a single fix to a track (i.e. pinging the location of that track's item).
+ * 
+ * @author Fredrik Teschke
+ *
+ */
+public interface PingDeviceIdentifier extends DeviceIdentifier {
+    UUID getId();
+}

java/com.sap.sailing.domain.racelogtrackingadapter/src/com/sap/sailing/domain/racelog/tracking/impl/Activator.java

@@ -52,6 +52,8 @@ public class Activator implements BundleActivator {
         registrations.add(context.registerService(DeviceIdentifierMongoHandler.class, new SmartphoneImeiMongoHandlerImpl(), getDict(SmartphoneImeiIdentifier.TYPE)));
         registrations.add(context.registerService(DeviceIdentifierJsonHandler.class, new SmartphoneImeiJsonHandlerImpl(), getDict(SmartphoneImeiIdentifier.TYPE)));
         
+        registrations.add(context.registerService(DeviceIdentifierMongoHandler.class, new PingDeviceMongoHandlerImpl(), getDict(PingDeviceIdentifierImpl.TYPE)));
+        
         registerGPSFixJsonService(context, new GPSFixJsonDeserializer(), new GPSFixJsonSerializer(), GPSFixJsonDeserializer.TYPE);
         registerGPSFixJsonService(context, new GPSFixMovingJsonDeserializer(), new GPSFixMovingJsonSerializer(), GPSFixMovingJsonDeserializer.TYPE);
         registerGPSFixJsonService(context, new GPSFixNmeaDTOJsonDeserializer(), new GPSFixNmeaDTOJsonSerializer(), GPSFixNmeaDTOJsonDeserializer.TYPE);

java/com.sap.sailing.domain.racelogtrackingadapter/src/com/sap/sailing/domain/racelog/tracking/impl/PingDeviceIdentifierImpl.java

@@ -0,0 +1,44 @@
+package com.sap.sailing.domain.racelog.tracking.impl;
+
+import java.util.UUID;
+
+import com.sap.sailing.domain.base.IsManagedBySharedDomainFactory;
+import com.sap.sailing.domain.base.SharedDomainFactory;
+import com.sap.sailing.domain.racelog.tracking.PingDeviceIdentifier;
+
+public class PingDeviceIdentifierImpl implements PingDeviceIdentifier {
+    private static final long serialVersionUID = -4049961972156611640L;
+
+    public static final String TYPE = "PING";
+    
+    private final UUID id;
+    
+    public PingDeviceIdentifierImpl() {
+        this.id = UUID.randomUUID();
+    }
+    
+    public PingDeviceIdentifierImpl(UUID id) {
+        this.id = id;
+    }
+
+    @Override
+    public String getIdentifierType() {
+        return TYPE;
+    }
+
+    @Override
+    public IsManagedBySharedDomainFactory resolve(SharedDomainFactory domainFactory) {
+        //No resolving necessary, only relevant on the creating server
+        return this;
+    }
+
+    @Override
+    public UUID getId() {
+        return id;
+    }
+
+    @Override
+    public String getStringRepresentation() {
+        return id.toString();
+    }
+}

java/com.sap.sailing.domain.racelogtrackingadapter/src/com/sap/sailing/domain/racelog/tracking/impl/PingDeviceMongoHandlerImpl.java

@@ -0,0 +1,26 @@
+package com.sap.sailing.domain.racelog.tracking.impl;
+
+import java.util.UUID;
+
+import com.sap.sailing.domain.common.racelog.tracking.TransformationException;
+import com.sap.sailing.domain.persistence.racelog.tracking.DeviceIdentifierMongoHandler;
+import com.sap.sailing.domain.racelog.tracking.DeviceIdentifier;
+import com.sap.sailing.domain.racelog.tracking.PingDeviceIdentifier;
+
+public class PingDeviceMongoHandlerImpl implements DeviceIdentifierMongoHandler {
+    private PingDeviceIdentifier castIdentifier(DeviceIdentifier identifier) throws TransformationException {
+        if (!(identifier instanceof PingDeviceIdentifier))
+            throw new TransformationException("Expected a PingDeviceIdentifier, got instead: " + identifier);
+        return (PingDeviceIdentifier) identifier;
+    }
+
+    @Override
+    public Object transformForth(DeviceIdentifier deviceIdentifier) throws TransformationException {
+        return castIdentifier(deviceIdentifier).getId().toString();
+    }
+
+    @Override
+    public DeviceIdentifier transformBack(Object input) {
+        return new PingDeviceIdentifierImpl(UUID.fromString((String) input));
+    }
+}