Separate DB and non-DB code to different structural sync bundles

[simantics/platform.git] / bundles / org.simantics.structural.synchronization / src / org / simantics / structural / synchronization / base / ModuleUpdateContext.java

diff --git a/bundles/org.simantics.structural.synchronization/src/org/simantics/structural/synchronization/base/ModuleUpdateContext.java b/bundles/org.simantics.structural.synchronization/src/org/simantics/structural/synchronization/base/ModuleUpdateContext.java
new file mode 100644 (file)
index 0000000..a4dea1a
--- /dev/null
+++ b/bundles/org.simantics.structural.synchronization/src/org/simantics/structural/synchronization/base/ModuleUpdateContext.java
@@ -0,0 +1,172 @@
+package org.simantics.structural.synchronization.base;
+
+import java.util.ArrayList;
+
+import org.simantics.databoard.binding.mutable.Variant;
+import org.simantics.structural.synchronization.utils.ComponentBase;
+import org.simantics.structural.synchronization.utils.Solver;
+
+import gnu.trove.map.hash.THashMap;
+
+public class ModuleUpdateContext<T extends ComponentBase<T>> {
+
+    private ModuleUpdaterBase<T> updater;
+    private final SynchronizationEventHandlerBase<T> handler;
+    public final T component;
+    public CommandBuilder command;
+    private ArrayList<Runnable> postUpdateActions; 
+    private THashMap<String, Variant> storedProperties;
+    
+    private int pendingRuleCount;
+    public boolean stateLoadedFromUndo;
+
+    public ModuleUpdateContext(SynchronizationEventHandlerBase<T> handler, ModuleUpdaterBase<T> updater, T component) {
+       assert(updater != null);
+        this.handler = handler;
+        this.updater = updater;
+        this.component = component;
+    }
+
+    public void incPendingCount() {
+        ++pendingRuleCount;
+    }
+    
+    public void decPendingCount() {
+        --pendingRuleCount;
+        if(pendingRuleCount == 0) {
+               try {
+                       command.apply(getSolver());
+                       command = null;
+               } catch (Exception e) {
+                       handler.reportProblem("Exception while issuing command.", e);
+               }
+            if(getModuleId() <= 0) {
+                setModuleId(getSolver().getId(getModuleName()));
+                component.setModuleId(getModuleId());
+            }
+            if(postUpdateActions != null) {
+                for(Runnable action : postUpdateActions)
+                    try {
+                        action.run();
+                    } catch(Exception e) {
+                        handler.reportProblem("Post update action failed.", e);
+                    }
+                postUpdateActions = null;
+            }
+            handler.resolver.unmarkPending(component);
+        }
+    }
+    
+    public void addPostUpdateAction(Runnable action) {
+        if(postUpdateActions == null)
+            postUpdateActions = new ArrayList<Runnable>(2);
+        postUpdateActions.add(action);
+    }
+
+    public int getModuleId() {
+        return component.getModuleId();
+    }
+    
+    public SynchronizationEventHandlerBase<T> getHandler() {
+        return handler;
+    }
+
+    public void setModuleId(int moduleId) {
+        component.setModuleId(moduleId);
+    }
+
+    public Solver getSolver() {
+       return handler.solver;
+    }
+    
+    public <S> S getConcreteSolver() {
+       return handler.solver.getConcreteSolver();
+    }
+
+    public String getModuleType() {
+        return updater != null ? updater.moduleType : null;
+    }
+
+    public String getModuleName() {
+        return component.solverComponentName;
+    }
+
+    public void setModuleName(String moduleName) {
+        component.solverComponentName = moduleName;
+    }
+
+    public void reportProblem(String description) {
+        handler.reportProblem(description);
+       
+    }
+    
+    public void reportProblem(String description, Exception e) {
+        handler.reportProblem(description, e);
+    }
+
+    public void resolveReference(String connectionPoint, ModuleCallback moduleCallback) {
+        handler.resolver.resolveReference(component, connectionPoint, moduleCallback);
+    }
+    
+    public void storeProperty(String name, Variant value) {
+        if(storedProperties == null)
+            storedProperties = new THashMap<String, Variant>();
+        storedProperties.put(name, value);
+    }
+    
+    public Variant getStoredProperty(String name) {
+        if(storedProperties == null)
+            return null;
+        return storedProperties.get(name);
+    }
+
+    public void addPostSynchronizationAction(Runnable action) {
+        handler.addPostSynchronizationAction(action); 
+    }
+    
+    @SuppressWarnings("unchecked")
+       public <C> C getConcreteCommand() {
+       return (C)command.getConcrete();
+    }
+
+    public void setDidChanges() {
+        handler.setDidChanges();
+    }
+    
+    ArrayList<ResynchronizeAction> resynchronizeActions;
+
+    private class ResynchronizeAction {
+        final String connectionPoint;
+        final ModuleCallback callback;
+        
+        public ResynchronizeAction(String connectionPoint,
+                ModuleCallback callback) {
+            this.connectionPoint = connectionPoint;
+            this.callback = callback;
+        }
+    }
+    
+    public void resynchronize(String connectionPoint, ModuleCallback callback) {
+        if(resynchronizeActions == null) {
+            resynchronizeActions = new ArrayList<ResynchronizeAction>();
+            handler.addPostSynchronizationAction(new Runnable() {
+                @Override
+                public void run() {
+                    ArrayList<ResynchronizeAction> resynchronizeActions = ModuleUpdateContext.this.resynchronizeActions;
+                    ModuleUpdateContext.this.resynchronizeActions = null;
+                    
+                    command = updater.createUpdateCommandBuilder(getModuleName());
+                    for(ResynchronizeAction action : resynchronizeActions)
+                        resolveReference(action.connectionPoint, action.callback);
+                    try {
+                        command.apply(getSolver());
+                    } catch (Exception e) {
+                        handler.reportProblem("Exception while issuing command.", e);
+                    }
+                }
+            });
+        }
+        resynchronizeActions.add(new ResynchronizeAction(connectionPoint, callback));
+    }
+
+}