gerrit.simantics Code Review - simantics/platform.git/blob

   1 package org.simantics.structural.synchronization.base;
   2
   3 import gnu.trove.map.hash.THashMap;
   4
   5 import java.util.Collection;
   6 import java.util.Collections;
   7 import java.util.Map;
   8
   9 import org.simantics.databoard.binding.mutable.Variant;
  10 import org.simantics.structural.synchronization.protocol.Connection;
  11 import org.simantics.structural.synchronization.protocol.SerializedVariable;
  12
  13 abstract public class ModuleUpdaterBase<T extends ComponentBase<T>> {
  14
  15     public String moduleType;
  16     public THashMap<String, PropertyUpdateRule<T>> propertyUpdateRules =
  17             new THashMap<String, PropertyUpdateRule<T>>();
  18     public THashMap<String, ConnectionUpdateRule<T>> connectionUpdateRules =
  19             new THashMap<String, ConnectionUpdateRule<T>>();
  20     public boolean isUserComponent;
  21     public boolean isComposite;
  22
  23     public ModuleUpdaterBase(String moduleType) {
  24         this.moduleType = moduleType;
  25     }
  26
  27     public void addPropertyUpdateRule(PropertyUpdateRule<T> rule) {
  28         propertyUpdateRules.put(rule.getPropertyName(), rule);
  29     }
  30
  31     public void addConnectionUpdateRule(ConnectionUpdateRule<T> rule) {
  32         connectionUpdateRules.put(rule.getConnectionPointName(), rule);
  33     }
  34
  35     public void create(ModuleUpdateContext<T> context, Collection<SerializedVariable> properties, Collection<Connection> connections) {
  36         context.command = createAddCommandBuilder(context.getModuleName());
  37         applyRules(context, true, properties, connections);
  38     }
  39
  40     abstract public CommandBuilder createAddCommandBuilder(String name);
  41
  42     public void update(ModuleUpdateContext<T> context, Collection<SerializedVariable> properties, Collection<Connection> connections) {
  43         // Check that the module type matches
  44         int moduleTypeId = context.getSolver().getModuleType(context.getModuleId());
  45         String moduleTypeName = context.getSolver().getName(moduleTypeId);
  46         if(!moduleTypeName.equals(moduleType)) {
  47             context.getSolver().remove(context.getModuleId());
  48             context.component.componentId = -1;
  49             context.setModuleId(-1);
  50             create(context, properties, connections);
  51         }
  52
  53         // Update
  54         else {
  55             context.command = createUpdateCommandBuilder(context.getModuleName());
  56             applyRules(context, false, properties, connections);
  57         }
  58     }
  59
  60     abstract public CommandBuilder createUpdateCommandBuilder(String name);
  61
  62     private void applyRules(ModuleUpdateContext<T> context, boolean inCreate,
  63             Collection<SerializedVariable> properties, Collection<Connection> connections) {
  64         THashMap<String, Variant> propertyMap = new THashMap<String, Variant>(properties.size());
  65         Map<String, Collection<String>> connectionMap = connections.isEmpty()
  66                 ? Collections.<String, Collection<String>>emptyMap()
  67                 : new THashMap<String, Collection<String>>(connections.size());
  68         for(SerializedVariable property : properties)
  69             propertyMap.put(property.name, property.value);
  70         for(Connection connection : connections)
  71             connectionMap.put(connection.relation, connection.connectionPoints);
  72
  73         context.incPendingCount(); // To prevent premature execution of the command
  74         for(SerializedVariable property : properties) {
  75             PropertyUpdateRule<T> rule = propertyUpdateRules.get(property.name);
  76             if(rule != null)
  77                 rule.apply(context, inCreate, propertyMap, connectionMap, property.value);
  78             else if(property.name.equals("IsAttached"))
  79                 ;
  80             else
  81                 if(SynchronizationEventHandlerBase.TRACE_EVENTS)
  82                     System.out.println("    skipped property " + property.name + " " + property.toString());
  83         }
  84         if(inCreate) {
  85             for(Connection connection : connections) {
  86                 ConnectionUpdateRule<T> rule = connectionUpdateRules.get(connection.relation);
  87                 if(rule != null)
  88                     rule.apply(context, propertyMap, connection.connectionPoints);
  89                 else
  90                         if(SynchronizationEventHandlerBase.TRACE_EVENTS)
  91                             System.out.println("    skipped connection " + connection.relation + " " + connection.connectionPoints);
  92             }
  93         }
  94         else {
  95             THashMap<String, ConnectionUpdateRule<T>> unusedConnectionUpdateRules =
  96                     new THashMap<String, ConnectionUpdateRule<T>>(connectionUpdateRules);
  97             for(Connection connection : connections) {
  98                 ConnectionUpdateRule<T> rule = unusedConnectionUpdateRules.remove(connection.relation);
  99                 if(rule != null)
 100                     rule.apply(context, propertyMap, connection.connectionPoints);
 101                 else
 102                     if(SynchronizationEventHandlerBase.TRACE_EVENTS)
 103                         System.out.println("    skipped connection " + connection.relation + " " + connection.connectionPoints);
 104             }
 105             for(ConnectionUpdateRule<T> rule : unusedConnectionUpdateRules.values())
 106                 rule.apply(context, propertyMap, Collections.<String>emptyList());
 107         }
 108         context.decPendingCount();
 109     }
 110
 111 }