]> gerrit.simantics Code Review - simantics/platform.git/blobdiff - bundles/org.simantics.db.impl/src/org/simantics/db/impl/graph/ReadGraphImpl.java
Truncate size of the binary file
[simantics/platform.git] / bundles / org.simantics.db.impl / src / org / simantics / db / impl / graph / ReadGraphImpl.java
index 4ef46e6c681e35e5b041387e21942a0908793869..79fe974642d2a71e66054fe6de5d00a60424b7bf 100644 (file)
@@ -18,10 +18,10 @@ import java.io.IOException;
 import java.io.PrintStream;
 import java.lang.reflect.Array;
 import java.lang.reflect.InvocationTargetException;
-import java.nio.BufferUnderflowException;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
+import java.util.HashSet;
 import java.util.IdentityHashMap;
 import java.util.Iterator;
 import java.util.List;
@@ -45,6 +45,7 @@ import org.simantics.databoard.type.Datatype;
 import org.simantics.databoard.util.binary.BinaryFile;
 import org.simantics.databoard.util.binary.RandomAccessBinary;
 import org.simantics.db.AsyncReadGraph;
+import org.simantics.db.ComputationalValue;
 import org.simantics.db.DevelopmentKeys;
 import org.simantics.db.ExternalValueSupport;
 import org.simantics.db.ReadGraph;
@@ -89,6 +90,7 @@ import org.simantics.db.common.primitiverequest.Value;
 import org.simantics.db.common.primitiverequest.ValueImplied;
 import org.simantics.db.common.primitiverequest.VariantValueImplied;
 import org.simantics.db.common.procedure.adapter.AsyncMultiProcedureAdapter;
+import org.simantics.db.common.procedure.adapter.AsyncProcedureAdapter;
 import org.simantics.db.common.procedure.adapter.ProcedureAdapter;
 import org.simantics.db.common.procedure.adapter.SyncMultiProcedureAdapter;
 import org.simantics.db.common.procedure.adapter.TransientCacheAsyncListener;
@@ -133,7 +135,6 @@ import org.simantics.db.exception.NoSingleResultException;
 import org.simantics.db.exception.ResourceNotFoundException;
 import org.simantics.db.exception.ServiceException;
 import org.simantics.db.exception.ValidationException;
-import org.simantics.db.impl.BlockingAsyncProcedure;
 import org.simantics.db.impl.RelationContextImpl;
 import org.simantics.db.impl.ResourceImpl;
 import org.simantics.db.impl.internal.RandomAccessValueSupport;
@@ -198,9 +199,10 @@ public class ReadGraphImpl implements AsyncReadGraph {
     final static boolean EMPTY_RESOURCE_CHECK = false;
     
        final public CacheEntry parent;
+       public final ReadGraphImpl parentGraph;
        final public QueryProcessor processor;
        
-       public AsyncBarrierImpl asyncBarrier = null;
+       public final AsyncBarrierImpl asyncBarrier;
        
        final static Binding DATA_TYPE_BINDING_INTERNAL = Bindings.getBindingUnchecked(Datatype.class);
        final static Serializer DATA_TYPE_SERIALIZER = Bindings.getSerializerUnchecked(DATA_TYPE_BINDING_INTERNAL);
@@ -1104,9 +1106,10 @@ public class ReadGraphImpl implements AsyncReadGraph {
 
                assert (subject != null);
 
+               byte[] bytes = null;
                try {
                        
-                       byte[] bytes = processor.getValue(this, subject);
+                       bytes = processor.getValue(this, subject);
                        if (bytes == null) throw new DoesNotContainValueException("No value for resource " + subject);
 
                        Serializer serializer = getSerializer(binding);
@@ -1116,20 +1119,9 @@ public class ReadGraphImpl implements AsyncReadGraph {
 
                        throw new DoesNotContainValueException(e);
 
-               } catch (IOException e) {
-
-                       throw new ServiceException(e);
-
-               } catch (DatabaseException e) {
-                   
-            throw new ServiceException(e);
-            
-        } catch (BufferUnderflowException e) {
-            // This is sometimes thrown when deserialize fails because wrong format.
-            // For callers of this method this is just an service exception.
-            throw new ServiceException(e);
-        }
-
+               } catch (Throwable t) {
+                       throw new ServiceException("Could not getValue for subject " + debugString(subject) + " and binding " + String.valueOf(binding) + " with bytes " + safeArrayToString(bytes), t);
+               }
        }
 
        @Override
@@ -1930,11 +1922,8 @@ public class ReadGraphImpl implements AsyncReadGraph {
 
        @Override
        public <T> T syncRequest(final Read<T> request) throws DatabaseException {
-
                assert (request != null);
-
-               return QueryCache.resultReadEntry(this, request, parent, null, null);
-
+               return (T)QueryCache.runnerReadEntry(this, request, parent, null, null, true);
        }
 
        @Override
@@ -2012,10 +2001,7 @@ public class ReadGraphImpl implements AsyncReadGraph {
                        throws DatabaseException {
 
                assert (request != null);
-               asyncBarrier = new AsyncBarrierImpl(null);
-               BlockingAsyncProcedure<T> ap = new BlockingAsyncProcedure<>(this, null, request);
-               syncRequest(request, ap);
-               return ap.get();
+               return syncRequest(request, new AsyncProcedureAdapter<>() );
 
        }
 
@@ -2045,26 +2031,9 @@ public class ReadGraphImpl implements AsyncReadGraph {
 
                ListenerBase listener = getListenerBase(procedure);
 
-               BlockingAsyncProcedure<T> ap = new BlockingAsyncProcedure<>(this, procedure, request);
-
-               QueryCache.runnerAsyncReadEntry(this, request, parent, listener, ap, true);
-
-               return ap.get();
-
-       }
-
-       final private <T> void syncRequest(final AsyncRead<T> request, final AsyncReadProcedure<T> procedure) throws DatabaseException {
-
-               assert (request != null);
-
-               ListenerBase listener = getListenerBase(procedure);
-               assert(listener == null);
-
-               BlockingAsyncProcedure<T> ap = new BlockingAsyncProcedure<>(this, procedure, request);
-
-               QueryCache.runnerAsyncReadEntry(this, request, parent, listener, ap, true);
-
-               ap.get();
+//             BlockingAsyncProcedure<T> ap = new BlockingAsyncProcedure<>(this, procedure, request);
+               return (T)QueryCache.runnerAsyncReadEntry(this, request, parent, listener, procedure, true);
+//             return ap.get();
 
        }
 
@@ -3564,14 +3533,9 @@ public class ReadGraphImpl implements AsyncReadGraph {
 //                                     else
                                                procedure.execute(graph, (T) obj);
 
-                               } catch (IOException e) {
-                                       procedure.exception(graph, e);
-                               } catch (BufferUnderflowException e) {
-                                       procedure.exception(graph, e);
                                } catch (Throwable t) {
-                                       procedure.exception(graph, t);
+                                   procedure.exception(graph, new ServiceException("Could not forValue for subject " + debugString(resource) + " and binding " + String.valueOf(binding) + " with bytes " + safeArrayToString(result), t));
                                }
-
                        }
 
                        @Override
@@ -3591,6 +3555,24 @@ public class ReadGraphImpl implements AsyncReadGraph {
                });
 
        }
+       
+    private static String safeArrayToString(byte[] a) {
+        if (a == null)
+            return "null";
+        int iMax = a.length - 1;
+        if (iMax == -1)
+            return "[]";
+
+        StringBuilder b = new StringBuilder();
+        b.append('[');
+        for (int i = 0; i < 100; i++) { // limit to first 100 items 
+            b.append(a[i]);
+            if (i == iMax)
+                return b.append(']').toString();
+            b.append(", ");
+        }
+        return b.append(", ... (" + a.length + ")]").toString();
+    }
 
        @Override
        public <T> void forValue(Resource subject, Binding binding,
@@ -4285,14 +4267,9 @@ public class ReadGraphImpl implements AsyncReadGraph {
                                        else
                                                procedure.execute(graph, (T) obj);
 
-                               } catch (IOException e) {
-                                       procedure.exception(graph, e);
-                               } catch (BufferUnderflowException e) {
-                                       procedure.exception(graph, e);
                                } catch (Throwable t) {
-                                       procedure.exception(graph, t);
+                                       procedure.exception(graph, new ServiceException("Could not forValue for subject " + debugString(resource) + " and binding " + String.valueOf(binding) + " with bytes " + safeArrayToString(result), t));
                                }
-
                        }
 
                        @Override
@@ -5175,10 +5152,10 @@ public class ReadGraphImpl implements AsyncReadGraph {
                assert (request != null);
                assert (procedure != null);
        
-               processor.schedule(new SessionTask(false) {
+               processor.schedule(new SessionTask(this) {
 
                        @Override
-                       public void run(int thread) {
+                       public void run0(int thread) {
                                try {
                                        final ListenerBase listener = getListenerBase(procedure);
                                        QueryCache.runnerReadEntry(ReadGraphImpl.this, request, parent, listener, procedure, false);
@@ -5192,7 +5169,7 @@ public class ReadGraphImpl implements AsyncReadGraph {
        }
 
     public static ReadGraphImpl createAsync(QueryProcessor support) {
-        return new ReadGraphImpl(null, support);
+        return new ReadGraphImpl(null, null, support);
     }
 
        @Override
@@ -5255,10 +5232,10 @@ public class ReadGraphImpl implements AsyncReadGraph {
                assert (request != null);
                assert (procedure != null);
 
-               processor.schedule(new SessionTask(false) {
+               processor.schedule(new SessionTask(this) {
 
                        @Override
-                       public void run(int thread) {
+                       public void run0(int thread) {
                                try {
                                        final ListenerBase listener = getListenerBase(procedure);
                                        QueryCache.runnerAsyncReadEntry(ReadGraphImpl.this, request, parent, listener, procedure, false);
@@ -5645,27 +5622,31 @@ public class ReadGraphImpl implements AsyncReadGraph {
         * this execution state.syncParent is the blocking request
         */
 
-       final private boolean isExternal(int thread) {
-               return thread == Integer.MIN_VALUE;
+       ReadGraphImpl(ReadGraphImpl parentGraph, CacheEntry parent, QueryProcessor support) {
+               this.parentGraph = parentGraph;
+               this.parent = parent;
+               this.processor = support;
+               this.asyncBarrier = new AsyncBarrierImpl(parentGraph != null ? parentGraph.asyncBarrier : null, parent);
+       }
+
+       ReadGraphImpl(ReadGraphImpl graph, CacheEntry parent) {
+               this(graph, parent, graph.processor);
        }
 
        ReadGraphImpl(ReadGraphImpl graph) {
-               this(graph.parent, graph.processor);
+               this(graph, graph.parent);
        }
 
-       ReadGraphImpl(CacheEntry parent, QueryProcessor support) {
-               this.parent = parent;
-               this.processor = support;
+       public ReadGraphImpl withParent(CacheEntry parent) {
+               return new ReadGraphImpl(this, parent);
        }
 
-       public static ReadGraphImpl create(QueryProcessor support) {
-               return new ReadGraphImpl(null, support);
+       public ReadGraphImpl forRecompute(CacheEntry parent) {
+               return new ReadGraphImpl(null, parent, processor);
        }
 
-       public static ReadGraphImpl newAsync(ReadGraphImpl parent) {
-               ReadGraphImpl result = new ReadGraphImpl(parent);
-               result.asyncBarrier = new AsyncBarrierImpl(parent.asyncBarrier);
-               return result;
+       public static ReadGraphImpl create(QueryProcessor support) {
+               return new ReadGraphImpl(null, null, support);
        }
 
        public ReadGraphImpl newRestart(ReadGraphImpl impl) {
@@ -5677,11 +5658,6 @@ public class ReadGraphImpl implements AsyncReadGraph {
 
        }
 
-       public ReadGraphImpl withParent(CacheEntry parent) {
-               if(parent == this.parent) return this;
-               else return new ReadGraphImpl(parent, processor);
-       }
-
        final private ListenerBase getListenerBase(final Object procedure) {
                if (procedure instanceof ListenerBase)
                        return (ListenerBase) procedure;
@@ -5938,6 +5914,8 @@ public class ReadGraphImpl implements AsyncReadGraph {
             }
             Serializer serializer = binding.serializer();
             byte[] bytes = serializer.serialize(initialValue);
+            // In case the file has been previously accessed and was larger we set the correct size now
+            rd.binaryFile.setLength(bytes.length);
             rd.binaryFile.write(bytes);
             ravs.put(resource, rd);
             return rd;
@@ -6127,12 +6105,18 @@ public class ReadGraphImpl implements AsyncReadGraph {
                        return getValue(r, binding);
                }
        } else if(types.contains(L0.ExternalValue)) {
-               try {
-                       return (T)ReflectionUtils.getValue(getURI(r)).getValue();
-               } catch(ValueNotFoundException e) {
-                       throw new DatabaseException(e);
-               } catch(ClassCastException e) {
-                       throw new DatabaseException(e);
+               ComputationalValue cv = syncRequest(new PossibleAdapter<ComputationalValue>(r, ComputationalValue.class), TransientCacheAsyncListener.instance());
+               if(cv != null) {
+                       return cv.getValue(this, r);
+               } else {
+                       // This should not even be possible since L0 defines an adapter for all values
+                       try {
+                               return (T)ReflectionUtils.getValue(getURI(r)).getValue();
+                       } catch(ValueNotFoundException e) {
+                               throw new DatabaseException(e);
+                       } catch(ClassCastException e) {
+                               throw new DatabaseException(e);
+                       }
                }
        }
        else {
@@ -6324,7 +6308,17 @@ public class ReadGraphImpl implements AsyncReadGraph {
 
     @Override
     public boolean performPending() {
-        return processor.performPending(processor.thread.get());
+        return processor.performPending(this);
+    }
+
+    public Set<ReadGraphImpl> ancestorSet() {
+        HashSet<ReadGraphImpl> result = new HashSet<>();
+        ReadGraphImpl g = this;
+        while(g != null) {
+            result.add(g);
+            g = g.parentGraph;
+        }
+        return result;
     }
 
 }