]> gerrit.simantics Code Review - simantics/platform.git/blobdiff - bundles/org.simantics.scl.db/src/org/simantics/scl/db/SCLFunctions.java
Pass graphs as ReadGraph instead of Object for clarity
[simantics/platform.git] / bundles / org.simantics.scl.db / src / org / simantics / scl / db / SCLFunctions.java
index 23c1ad508ef09d68b10d0ac22649c7d3004d17cb..2fd74b21e3e1c25e7b7b520ba24f559ff0749a06 100644 (file)
@@ -1,6 +1,19 @@
+/*******************************************************************************
+ * Copyright (c) 2019 Association for Decentralized Information Management in
+ * Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     Semantum Oy - initial API and implementation
+ *******************************************************************************/
 package org.simantics.scl.db;
 
 import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
 
 import org.cojen.classfile.TypeDesc;
 import org.simantics.Simantics;
@@ -25,17 +38,28 @@ import org.simantics.db.service.QueryControl;
 import org.simantics.db.service.SerialisationSupport;
 import org.simantics.db.service.VirtualGraphSupport;
 import org.simantics.layer0.utils.triggers.IActivationManager;
+import org.simantics.scl.compiler.elaboration.modules.SCLValue;
 import org.simantics.scl.compiler.environment.specification.EnvironmentSpecification;
+import org.simantics.scl.compiler.errors.DoesNotExist;
 import org.simantics.scl.compiler.errors.Failable;
+import org.simantics.scl.compiler.errors.Failure;
 import org.simantics.scl.compiler.internal.codegen.types.JavaTypeTranslator;
 import org.simantics.scl.compiler.module.Module;
 import org.simantics.scl.compiler.module.repository.ImportFailureException;
 import org.simantics.scl.compiler.runtime.RuntimeEnvironment;
+import org.simantics.scl.compiler.runtime.RuntimeModule;
+import org.simantics.scl.compiler.top.ValueNotFound;
+import org.simantics.scl.compiler.types.TCon;
 import org.simantics.scl.compiler.types.Type;
+import org.simantics.scl.compiler.types.Types;
+import org.simantics.scl.compiler.types.exceptions.MatchException;
+import org.simantics.scl.compiler.types.util.MultiFunction;
 import org.simantics.scl.osgi.SCLOsgi;
+import org.simantics.scl.reflection.ValueNotFoundException;
 import org.simantics.scl.runtime.SCLContext;
 import org.simantics.scl.runtime.function.Function;
 import org.simantics.scl.runtime.function.Function1;
+import org.simantics.scl.runtime.reporting.SCLReportingHandler;
 import org.simantics.scl.runtime.tuple.Tuple;
 import org.simantics.scl.runtime.tuple.Tuple0;
 import org.simantics.utils.DataContainer;
@@ -57,8 +81,107 @@ public class SCLFunctions {
             return null;
         }
     }
+
+    public static Function resolveFunction(RuntimeModule rm, String function) throws ValueNotFound {
+        return (Function)rm.getValue(function);
+    }
+    
+    private static SCLValue resolveSCLValue(RuntimeModule rm, String function) throws ValueNotFound {
+        return rm.getModule().getValue(function);
+    }
+    
+    private static RuntimeModule resolveRuntimeModule(String module) throws ValueNotFound {
+        Failable<RuntimeModule> f = SCLOsgi.MODULE_REPOSITORY.getRuntimeModule(module);
+        if(f.didSucceed())
+            return f.getResult();
+        else if(f == DoesNotExist.INSTANCE)
+            throw new ValueNotFound("Didn't find module " + module);
+        else
+            throw new ValueNotFound(((Failure)f).toString());
+    }
+    
+    private static List<TCon> getEffects(SCLValue value) throws ValueNotFoundException, ValueNotFound, MatchException {
+    
+        Type type = value.getType();
+        MultiFunction mfun = Types.matchFunction(type, 1);
+        ArrayList<TCon> concreteEffects = new ArrayList<>();
+        mfun.effect.collectConcreteEffects(concreteEffects);
+        return concreteEffects;
+        
+    }
+
+    public static List<TCon> getEffects(RuntimeModule rm, String function) throws ValueNotFoundException, ValueNotFound, MatchException {
+        return getEffects(resolveSCLValue(rm, function));
+    }
+
+    public static List<TCon> getEffects(String module, String function) throws ValueNotFoundException, ValueNotFound, MatchException {
+        return getEffects(resolveSCLValue(resolveRuntimeModule(module), function));
+    }
+    
+    private static <T> T evaluate(Function function, Object ... args) {
+        return (T)function.applyArray(args);
+    }
+
+    private static <T> T evaluate(RuntimeModule rm, String function, Object ... args) throws ValueNotFound {
+        return evaluate(resolveFunction(rm, function));
+    }
+
+    public static <T> T evaluate(String module, String function, Object ... args) throws ValueNotFound {
+        return evaluate(resolveRuntimeModule(module), function, args);
+    }
+
+    public static <T> T evaluateDB(String module, String function, Object ... args) throws DatabaseException {
+        try {
+            RuntimeModule rm = resolveRuntimeModule(module);
+            List<TCon> effects = getEffects(resolveSCLValue(rm, function));
+            Function f = resolveFunction(rm, function);
+            if(effects.contains(Types.WRITE_GRAPH)) {
+                return syncWrite(f, args);
+            } else if(effects.contains(Types.READ_GRAPH)) {
+                return syncRead(f, args);
+            } else {
+                return evaluate(f, args);
+            }
+        } catch (ValueNotFound e) {
+            throw new DatabaseException("SCL Value not found: " + e.name);
+        } catch (Throwable t) {
+            if (t instanceof DatabaseException)
+                throw (DatabaseException) t;
+            throw new DatabaseException(t);
+        }
+    }
     
-    public static void asyncRead(final Function f) throws DatabaseException {
+    public static <T> T evaluateGraph(String module, String function, ReadGraph graph, Object ... args) throws DatabaseException {
+        final SCLContext context = SCLContext.getCurrent();
+        SCLContext.push(context);
+        Object oldGraph = context.put(GRAPH, graph);
+        try {
+            return evaluateDB(module, function, args);
+        } finally {
+            context.put(GRAPH, oldGraph);
+            SCLContext.pop();
+        }
+    }
+
+    public static void runWithGraph(ReadGraph graph, Runnable r) {
+        final SCLContext context = SCLContext.getCurrent();
+        SCLContext.push(context);
+        Object oldGraph = context.put(GRAPH, graph);
+        try {
+            r.run();
+        } finally {
+            context.put(GRAPH, oldGraph);
+            SCLContext.pop();
+        }
+    }
+
+    private static Object[] NO_ARGS = new Object[] { Tuple0.INSTANCE };
+
+    public static <T> void asyncRead(final Function f) throws DatabaseException {    
+        asyncRead(f, NO_ARGS);
+    }
+
+    public static void asyncRead(final Function f, final Object ... args) throws DatabaseException {
         final SCLContext context = SCLContext.createDerivedContext();
         Simantics.getSession().asyncRequest(new ReadRequest() {
             @Override
@@ -75,10 +198,14 @@ public class SCLFunctions {
     }
     
     public static <T> T syncRead(final Function f) throws DatabaseException {
+        return syncRead(f, NO_ARGS);
+    }
+    
+    public static <T> T syncRead(final Function f, final Object ... args) throws DatabaseException {
         final SCLContext context = SCLContext.getCurrent();
         Object graph = context.get(GRAPH);
         if (graph != null) {
-            return (T)f.apply(Tuple0.INSTANCE);
+            return (T)f.applyArray(args);
         } else {
             return Simantics.getSession().syncRequest(new Read<T>() {
                 @Override
@@ -95,8 +222,12 @@ public class SCLFunctions {
             });
         }
     }
-    
+
     public static void asyncWrite(final Function f) throws DatabaseException {
+        asyncWrite(f, NO_ARGS);
+    }
+
+    public static void asyncWrite(final Function f, final Object ... args) throws DatabaseException {
         SCLContext context = SCLContext.createDerivedContext();
         if (Simantics.peekSession() != null) {
             Simantics.getSession().asyncRequest(new WriteRequest() {
@@ -105,7 +236,7 @@ public class SCLFunctions {
                     SCLContext.push(context);
                     context.put(GRAPH, graph);
                     try {
-                        f.apply(Tuple0.INSTANCE);
+                        f.apply(args);
                     } finally {
                         SCLContext.pop();
                     }
@@ -117,20 +248,27 @@ public class SCLFunctions {
     }
     
     public static <T> T syncWrite(final Function f) throws DatabaseException {
+        return syncWrite(f, NO_ARGS);
+    }
+
+    public static <T> T syncWrite(final Function f, final Object ... args) throws DatabaseException {
         final SCLContext context = SCLContext.getCurrent();
         Object graph = context.get(GRAPH);
         if (graph != null) {
             return (T)f.apply(Tuple0.INSTANCE);
         } else {
+            final SCLReportingHandler printer = (SCLReportingHandler)SCLContext.getCurrent().get(SCLReportingHandler.REPORTING_HANDLER);
             return Simantics.getSession().syncRequest(new WriteResultRequest<T>() {
                 @Override
                 public T perform(WriteGraph graph) throws DatabaseException {
                     SCLContext.push(context);
+                    SCLReportingHandler oldPrinter = (SCLReportingHandler)context.put(SCLReportingHandler.REPORTING_HANDLER, printer);
                     ReadGraph oldGraph = (ReadGraph)context.put(GRAPH, graph);
                     try {
-                        return (T)f.apply(Tuple0.INSTANCE);
+                        return (T)f.apply(args);
                     } finally {
                         context.put(GRAPH, oldGraph);
+                        context.put(SCLReportingHandler.REPORTING_HANDLER, oldPrinter);
                         SCLContext.pop();
                     }
                 }
@@ -140,13 +278,13 @@ public class SCLFunctions {
     
     public static <T> T delayedSyncWrite(final Function f) throws DatabaseException {
         final SCLContext context = SCLContext.getCurrent();
-       final DataContainer<T> dc = new DataContainer<T>(null);
+        final DataContainer<T> dc = new DataContainer<T>(null);
 
         DelayedWriteRequest request = new DelayedWriteRequest() {
             @Override
             public void perform(WriteGraph graph) throws DatabaseException {
-               final SCLContext context = SCLContext.getCurrent();
-               SCLContext.push(context);
+                final SCLContext context = SCLContext.getCurrent();
+                SCLContext.push(context);
                 ReadGraph oldGraph = (ReadGraph)context.put(GRAPH, graph);
                 try {
                     dc.set((T)f.apply(Tuple0.INSTANCE));
@@ -156,18 +294,18 @@ public class SCLFunctions {
                 }
             }
         };
-       
+    
         Object graph = context.get(GRAPH);
         if (graph != null) {
             if (graph instanceof WriteGraph) {
-               ((WriteGraph)graph).syncRequest(request);
+                ((WriteGraph)graph).syncRequest(request);
             } else {
-               throw new DatabaseException("Caller is inside a read transaction.");
+                throw new DatabaseException("Caller is inside a read transaction.");
             }
         } else {
             Simantics.getSession().syncRequest(request);
         }
-       return dc.get();
+        return dc.get();
     }
 
     public static <T> T virtualSyncWriteMem(WriteGraph graph, String virtualGraphId, final Function f) throws DatabaseException {
@@ -213,7 +351,7 @@ public class SCLFunctions {
             @Override
             public T perform(ReadGraph graph) throws DatabaseException {
                 return Variables.getVariable(graph, uri).getValue(graph);
-            }            
+            }
         });
     }
     
@@ -222,7 +360,7 @@ public class SCLFunctions {
             @Override
             public void perform(WriteGraph graph) throws DatabaseException {
                 Variables.getVariable(graph, uri).setValue(graph, value);
-            }            
+            }
         });
     }
     
@@ -253,23 +391,23 @@ public class SCLFunctions {
     
     public static class SCLUnaryRead extends BinaryRead<Function1<Object,Object>, Object, Object> {
 
-               public SCLUnaryRead(Function1<Object, Object> parameter1, Object parameter2) {
-                       super(parameter1, parameter2);
-               }
+        public SCLUnaryRead(Function1<Object, Object> parameter1, Object parameter2) {
+             super(parameter1, parameter2);
+        }
+
+        @Override
+        public Object perform(ReadGraph graph) throws DatabaseException {
+            return Simantics.applySCLRead(graph, parameter, parameter2);
+        }
 
-               @Override
-               public Object perform(ReadGraph graph) throws DatabaseException {
-                       return Simantics.applySCLRead(graph, parameter, parameter2);
-               }
-       
     }
     
     public static Object unaryQuery(ReadGraph graph, Function1<Object,Object> fn, Object value) throws DatabaseException {
-       return graph.syncRequest(new SCLUnaryRead(fn, value));
+        return graph.syncRequest(new SCLUnaryRead(fn, value));
     }
 
     public static Object unaryQueryCached(ReadGraph graph, Function1<Object,Object> fn, Object value) throws DatabaseException {
-       return graph.syncRequest(new SCLUnaryRead(fn, value), TransientCacheAsyncListener.<Object>instance());
+        return graph.syncRequest(new SCLUnaryRead(fn, value), TransientCacheAsyncListener.<Object>instance());
     }
     
 
@@ -295,7 +433,7 @@ public class SCLFunctions {
     }
     
     public static void subqueryL(ReadGraph graph, Function query, Function executeCallback, Function1<Throwable, Tuple> exceptionCallback, Function1<Tuple0, Boolean> isDisposedCallback) throws DatabaseException {
-        graph.asyncRequest(new Subquery(query), new SyncListenerAdapter<Object>() {
+        graph.syncRequest(new Subquery(query), new SyncListenerAdapter<Object>() {
             @Override
             public void execute(ReadGraph graph, Object result) throws DatabaseException {
                 Simantics.applySCLRead(graph, executeCallback, result);
@@ -314,15 +452,15 @@ public class SCLFunctions {
     }
 
     public static Object possibleFromDynamic(Type expectedType, String moduleName, Object value) {
-       
+    
         try {
 
-               
+        
             Failable<Module> failable = SCLOsgi.MODULE_REPOSITORY.getModule(moduleName);
             Module module = failable.getResult();
             
-               RuntimeEnvironment env = SCLOsgi.MODULE_REPOSITORY.createRuntimeEnvironment(
-                               EnvironmentSpecification.of(moduleName, ""), module.getParentClassLoader());
+            RuntimeEnvironment env = SCLOsgi.MODULE_REPOSITORY.createRuntimeEnvironment(
+            EnvironmentSpecification.of(moduleName, ""), module.getParentClassLoader());
 
             JavaTypeTranslator tr = new JavaTypeTranslator(env.getEnvironment());
             TypeDesc desc = tr.toTypeDesc(expectedType);
@@ -338,22 +476,22 @@ public class SCLFunctions {
 
     public static void restrictQueries(ReadGraph graph, int amount, int step, int maxTimeInMs) {
 
-               QueryControl qc = graph.getService(QueryControl.class);
-               long start = System.currentTimeMillis();
-               while(true) {
-                       int current = qc.count();
-                       if(current < amount) return;
-                       qc.gc(graph, step);
-                       long duration = System.currentTimeMillis() - start;
-                       if(duration > maxTimeInMs) return;
-               }
+        QueryControl qc = graph.getService(QueryControl.class);
+        long start = System.currentTimeMillis();
+        while(true) {
+            int current = qc.count();
+            if(current < amount) return;
+            qc.gc(graph, step);
+            long duration = System.currentTimeMillis() - start;
+            if(duration > maxTimeInMs) return;
+        }
 
     }
 
     public static int countQueries(ReadGraph graph) {
 
-               QueryControl qc = graph.getService(QueryControl.class);
-               return qc.count();
+        QueryControl qc = graph.getService(QueryControl.class);
+        return qc.count();
 
     }