Started an object model for the orchestration platform

api/src/com/cloud/storage/Snapshot.java

@@ -40,6 +40,7 @@ public interface Snapshot extends ControlledEntity {
             return max;
         }
 
+        @Override
         public String toString() {
             return this.name();
         }
@@ -56,6 +57,7 @@ public interface Snapshot extends ControlledEntity {
         BackedUp,
         Error;
 
+        @Override
         public String toString() {
             return this.name();
         }
@@ -67,8 +69,9 @@ public interface Snapshot extends ControlledEntity {
 
     public static final long MANUAL_POLICY_ID = 0L;
 
-    Long getId();
+    long getId();
 
+    @Override
     long getAccountId();
 
     long getVolumeId();

core/src/com/cloud/storage/SnapshotVO.java

@@ -36,24 +36,24 @@ import com.google.gson.annotations.Expose;
 @Entity
 @Table(name="snapshots")
 public class SnapshotVO implements Snapshot, Identity {
-	
+
     @Id
     @GeneratedValue(strategy=GenerationType.IDENTITY)
     @Column(name="id")
-    private long id = -1;
-    
+    private final long id = -1;
+
     @Column(name="data_center_id")
     long dataCenterId;
 
     @Column(name="account_id")
     long accountId;
-    
+
     @Column(name="domain_id")
     long domainId;
 
     @Column(name="volume_id")
     Long volumeId;
-    
+
     @Column(name="disk_offering_id")
     Long diskOfferingId;
 
@@ -64,7 +64,7 @@ public class SnapshotVO implements Snapshot, Identity {
     @Expose
     @Column(name="name")
     String name;
-    
+
     @Expose
     @Column(name="status", updatable = true, nullable=false)
     @Enumerated(value=EnumType.STRING)
@@ -75,10 +75,10 @@ public class SnapshotVO implements Snapshot, Identity {
 
     @Column(name="type_description")
     String typeDescription;
-    
+
     @Column(name="size")
     long size;
-    
+
     @Column(name=GenericDao.CREATED_COLUMN)
     Date created;
 
@@ -87,10 +87,10 @@ public class SnapshotVO implements Snapshot, Identity {
 
     @Column(name="backup_snap_id")
     String backupSnapshotId;
-    
+
     @Column(name="swift_id")
     Long swiftId;
-    
+
     @Column(name="sechost_id")
     Long secHostId;
 
@@ -100,16 +100,16 @@ public class SnapshotVO implements Snapshot, Identity {
     @Column(name="hypervisor_type")
     @Enumerated(value=EnumType.STRING)
     HypervisorType  hypervisorType;
-    
+
     @Expose
     @Column(name="version")
     String version;
-    
+
     @Column(name="uuid")
     String uuid;
-    
+
     public SnapshotVO() {
-    	this.uuid = UUID.randomUUID().toString();
+        this.uuid = UUID.randomUUID().toString();
     }
 
     public SnapshotVO(long dcId, long accountId, long domainId, Long volumeId, Long diskOfferingId, String path, String name, short snapshotType, String typeDescription, long size, HypervisorType hypervisorType ) {
@@ -127,11 +127,11 @@ public class SnapshotVO implements Snapshot, Identity {
         this.prevSnapshotId = 0;
         this.hypervisorType = hypervisorType;
         this.version = "2.2";
-    	this.uuid = UUID.randomUUID().toString();
+        this.uuid = UUID.randomUUID().toString();
     }
-    
+
     @Override
-    public Long getId() {
+    public long getId() {
         return id;
     }
 
@@ -144,6 +144,7 @@ public class SnapshotVO implements Snapshot, Identity {
         return accountId;
     }
 
+    @Override
     public long getDomainId() {
         return domainId;
     }
@@ -165,9 +166,9 @@ public class SnapshotVO implements Snapshot, Identity {
     public String getPath() {
         return path;
     }
-    
+
     public void setPath(String path) {
-    	this.path = path;
+        this.path = path;
     }
 
     @Override
@@ -178,7 +179,7 @@ public class SnapshotVO implements Snapshot, Identity {
     public short getsnapshotType() {
         return snapshotType;
     }
-    
+
     @Override
     public Type getType() {
         if (snapshotType < 0 || snapshotType >= Type.values().length) {
@@ -186,7 +187,7 @@ public class SnapshotVO implements Snapshot, Identity {
         }
         return Type.values()[snapshotType];
     }
-    
+
     public Long getSwiftId() {
         return swiftId;
     }
@@ -205,13 +206,13 @@ public class SnapshotVO implements Snapshot, Identity {
 
     @Override
     public HypervisorType getHypervisorType() {
-    	return hypervisorType;
+        return hypervisorType;
     }
-    
+
     public void setSnapshotType(short snapshotType) {
         this.snapshotType = snapshotType;
     }
-    
+
     @Override
     public boolean isRecursive(){
         if ( snapshotType >= Type.HOURLY.ordinal() && snapshotType <= Type.MONTHLY.ordinal() ) {
@@ -239,6 +240,7 @@ public class SnapshotVO implements Snapshot, Identity {
         this.version = version;
     }
 
+    @Override
     public Date getCreated() {
         return created;
     }
@@ -246,32 +248,32 @@ public class SnapshotVO implements Snapshot, Identity {
     public Date getRemoved() {
         return removed;
     }
-    
-	@Override
+
+    @Override
     public Status getStatus() {
-		return status;
-	}
-	
-	public void setStatus(Status status) {
-		this.status = status;
-	}
-	
-	public String getBackupSnapshotId(){
-		return backupSnapshotId;
-	}
-	
+        return status;
+    }
+
+    public void setStatus(Status status) {
+        this.status = status;
+    }
+
+    public String getBackupSnapshotId(){
+        return backupSnapshotId;
+    }
+
     public long getPrevSnapshotId(){
-		return prevSnapshotId;
-	}
-	
-	public void setBackupSnapshotId(String backUpSnapshotId){
-		this.backupSnapshotId = backUpSnapshotId;
-	}
-	
-	public void setPrevSnapshotId(long prevSnapshotId){
-		this.prevSnapshotId = prevSnapshotId;
-	}
-	   
+        return prevSnapshotId;
+    }
+
+    public void setBackupSnapshotId(String backUpSnapshotId){
+        this.backupSnapshotId = backUpSnapshotId;
+    }
+
+    public void setPrevSnapshotId(long prevSnapshotId){
+        this.prevSnapshotId = prevSnapshotId;
+    }
+
     public static Type getSnapshotType(String snapshotType) {
         for ( Type type : Type.values()) {
             if ( type.equals(snapshotType)) {
@@ -280,13 +282,13 @@ public class SnapshotVO implements Snapshot, Identity {
         }
         return null;
     }
-    
+
     @Override
     public String getUuid() {
-    	return this.uuid;
+        return this.uuid;
     }
-    
+
     public void setUuid(String uuid) {
-    	this.uuid = uuid;
+        this.uuid = uuid;
     }
 }

platform/api/src/org/apache/cloudstack/platform/subsystem/api/storage/StorageSubSystem.java

@@ -8,8 +8,6 @@ public interface StorageSubSystem {
     String getType();
     Class<? extends Grouping> getScope();
 
-    create();
-
     URI grantAccess(String vol, String reservationId);
     URI RemoveAccess(String vol, String reservationId);
 }

utils/src/com/cloud/utils/fsm/FiniteState.java

@@ -29,14 +29,14 @@ public interface FiniteState<S, E> {
      * @return the state machine being used.
      */
     StateMachine<S, E> getStateMachine();
-    
+
     /**
      * get next state based on the event.
      * @param event
      * @return next State
      */
     S getNextState(E event);
-    
+
     /**
      * Get the states that could have traveled to the current state
      * via this event.
@@ -44,11 +44,12 @@ public interface FiniteState<S, E> {
      * @return array of states
      */
     List<S> getFromStates(E event);
-    
+
     /**
      * Get the possible events that can happen from the current state.
      * @return array of events.
      */
     Set<E> getPossibleEvents();
+
     String getDescription();
 }