X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.db.procore%2Fsrc%2Ffi%2Fvtt%2Fsimantics%2Fprocore%2Finternal%2FDirectQuerySupportImpl.java;h=fb6a1f7638e6716e283e3d654775ff665092dc36;hp=3e6e852c54f6445f26697dda0549c4d6526dc6ba;hb=HEAD;hpb=969bd23cab98a79ca9101af33334000879fb60c5 diff --git a/bundles/org.simantics.db.procore/src/fi/vtt/simantics/procore/internal/DirectQuerySupportImpl.java b/bundles/org.simantics.db.procore/src/fi/vtt/simantics/procore/internal/DirectQuerySupportImpl.java index 3e6e852c5..fb6a1f763 100644 --- a/bundles/org.simantics.db.procore/src/fi/vtt/simantics/procore/internal/DirectQuerySupportImpl.java +++ b/bundles/org.simantics.db.procore/src/fi/vtt/simantics/procore/internal/DirectQuerySupportImpl.java @@ -1,1080 +1,864 @@ -package fi.vtt.simantics.procore.internal; - -import org.simantics.db.AsyncReadGraph; -import org.simantics.db.DirectStatements; -import org.simantics.db.ReadGraph; -import org.simantics.db.RelationInfo; -import org.simantics.db.Resource; -import org.simantics.db.common.procedure.wrapper.NoneToAsyncProcedure; -import org.simantics.db.common.procedure.wrapper.SyncToAsyncProcedure; -import org.simantics.db.exception.DatabaseException; -import org.simantics.db.impl.ClusterI; -import org.simantics.db.impl.ClusterI.ClusterTypeEnum; -import org.simantics.db.impl.ForEachObjectContextProcedure; -import org.simantics.db.impl.ForEachObjectProcedure; -import org.simantics.db.impl.ForPossibleRelatedValueContextProcedure; -import org.simantics.db.impl.ForPossibleRelatedValueProcedure; -import org.simantics.db.impl.ResourceImpl; -import org.simantics.db.impl.TransientGraph; -import org.simantics.db.impl.graph.ReadGraphImpl; -import org.simantics.db.procedure.AsyncContextMultiProcedure; -import org.simantics.db.procedure.AsyncContextProcedure; -import org.simantics.db.procedure.AsyncMultiProcedure; -import org.simantics.db.procedure.AsyncProcedure; -import org.simantics.db.procedure.Procedure; -import org.simantics.db.procedure.SyncProcedure; -import org.simantics.db.procore.cluster.ClusterBig; -import org.simantics.db.procore.cluster.ClusterImpl; -import org.simantics.db.procore.cluster.ClusterSmall; -import org.simantics.db.procore.cluster.ResourceTableSmall; -import org.simantics.db.procore.cluster.ValueTableSmall; -import org.simantics.db.request.AsyncRead; -import org.simantics.db.service.DirectQuerySupport; -import org.simantics.utils.datastructures.Callback; - -public class DirectQuerySupportImpl implements DirectQuerySupport { - - final private SessionImplSocket session; - - DirectQuerySupportImpl(SessionImplSocket session) { - this.session = session; - } - - @Override - final public void forEachDirectPersistentStatement(AsyncReadGraph graph, final Resource subject, final AsyncProcedure procedure) { - ReadGraphImpl impl = (ReadGraphImpl)graph; - impl.processor.forEachDirectStatement(impl, subject, procedure, true); - } - - @Override - final public void forEachDirectStatement(AsyncReadGraph graph, final Resource subject, final AsyncProcedure procedure) { - ReadGraphImpl impl = (ReadGraphImpl)graph; - impl.processor.forEachDirectStatement(impl, subject, procedure, false); - } - - @Override - public void forEachDirectStatement(AsyncReadGraph graph, Resource subject, SyncProcedure procedure) { - forEachDirectStatement(graph, subject, new SyncToAsyncProcedure(procedure)); - } - - @Override - public void forEachDirectStatement(AsyncReadGraph graph, Resource subject, Procedure procedure) { - ReadGraphImpl impl = (ReadGraphImpl)graph; - impl.processor.forEachDirectStatement(impl, subject, procedure); - } - - @Override - public void forRelationInfo(AsyncReadGraph graph, Resource subject, AsyncProcedure procedure) { - ReadGraphImpl impl = (ReadGraphImpl)graph; - impl.processor.forRelationInfo(impl, subject, procedure); - } - - @Override - public void forRelationInfo(AsyncReadGraph graph, Resource subject, SyncProcedure procedure) { - forRelationInfo(graph, subject, new SyncToAsyncProcedure(procedure)); - } - - @Override - public void forRelationInfo(AsyncReadGraph graph, Resource subject, Procedure procedure) { - forRelationInfo(graph, subject, new NoneToAsyncProcedure(procedure)); - } - - @Override - public AsyncMultiProcedure compileForEachObject(ReadGraph graph, final Resource relation, AsyncMultiProcedure user) { - - try { - RelationInfo info = graph.syncRequest(new AsyncRead() { - - @Override - public void perform(AsyncReadGraph graph, AsyncProcedure procedure) { - forRelationInfo(graph, relation, procedure); - } - - @Override - public int threadHash() { - return hashCode(); - } - - @Override - public int getFlags() { - return 0; - } - - }); - final int predicateKey = ((ResourceImpl)relation).id; - return new ForEachObjectProcedure(predicateKey, info, session.queryProvider2, user); - } catch (DatabaseException e) { - return null; - } - - } - - @Override - public AsyncContextMultiProcedure compileForEachObject(ReadGraph graph, final Resource relation, AsyncContextMultiProcedure user) { - - try { - RelationInfo info = graph.syncRequest(new AsyncRead() { - - @Override - public void perform(AsyncReadGraph graph, AsyncProcedure procedure) { - forRelationInfo(graph, relation, procedure); - } - - @Override - public int threadHash() { - return hashCode(); - } - - @Override - public int getFlags() { - return 0; - } - - }); - final int predicateKey = ((ResourceImpl)relation).id; - return new ForEachObjectContextProcedure(predicateKey, info, session.queryProvider2, user); - } catch (DatabaseException e) { - return null; - } - - } - - @Override - public AsyncProcedure compilePossibleRelatedValue(ReadGraph graph, final Resource relation, AsyncProcedure user) { - - try { - RelationInfo info = graph.syncRequest(new AsyncRead() { - - @Override - public void perform(AsyncReadGraph graph, AsyncProcedure procedure) { - forRelationInfo(graph, relation, procedure); - } - - @Override - public int threadHash() { - return hashCode(); - } - - @Override - public int getFlags() { - return 0; - } - - }); - final int predicateKey = ((ResourceImpl)relation).id; - return new ForPossibleRelatedValueProcedure(predicateKey, info, user); - } catch (DatabaseException e) { - return null; - } - - } - - @Override - public AsyncContextProcedure compilePossibleRelatedValue(ReadGraph graph, final Resource relation, AsyncContextProcedure user) { - - try { - RelationInfo info = graph.syncRequest(new AsyncRead() { - - @Override - public void perform(AsyncReadGraph graph, AsyncProcedure procedure) { - forRelationInfo(graph, relation, procedure); - } - - @Override - public int threadHash() { - return hashCode(); - } - - @Override - public int getFlags() { - return 0; - } - - }); - final int predicateKey = ((ResourceImpl)relation).id; - return new ForPossibleRelatedValueContextProcedure(predicateKey, info, user); - } catch (DatabaseException e) { - return null; - } - - } - - @Override - public void forEachObjectCompiled(AsyncReadGraph graph, Resource subject, final AsyncMultiProcedure procedure) { - - assert(subject != null); - - final ForEachObjectProcedure proc = (ForEachObjectProcedure)procedure; -// final RelationInfo info = proc.info; - - final ReadGraphImpl impl = (ReadGraphImpl)graph; - final int subjectId = ((ResourceImpl)subject).id; - -// int callerThread = impl.callerThread; -// int suggestSchedule = (subjectId>>16) & queryProvider2.THREAD_MASK; - -// impl.inc(); - -// if(callerThread == suggestSchedule) { - -// if(info.isFunctional) { -// querySupport.getObjects4(impl, subjectId, proc); -// } else { - session.querySupport.getObjects4(impl, subjectId, proc); -// } - -// } else { -// -// impl.state.barrier.inc(); -// impl.state.barrier.dec(callerThread); -// -// queryProvider2.schedule(callerThread, new SessionTask(suggestSchedule) { -// -// @Override -// public void run(int thread) { -// -// impl.state.barrier.inc(thread); -// impl.state.barrier.dec(); -// -// if(info.isFunctional) { -// querySupport.getObjects4(impl.newAsync(thread), subjectId, proc); -// } else { -// querySupport.getObjects4(impl.newAsync(thread), subjectId, proc); -// } -// -// } -// -// @Override -// public String toString() { -// return "gaff8"; -// } -// -// }); -// -// } - - } - - @Override - public void forEachObjectCompiled(AsyncReadGraph graph, Resource subject, C context, final AsyncContextMultiProcedure procedure) { - - assert(subject != null); - - final ForEachObjectContextProcedure proc = (ForEachObjectContextProcedure)procedure; - final RelationInfo info = proc.info; - - final ReadGraphImpl impl = (ReadGraphImpl)graph; - final int subjectId = ((ResourceImpl)subject).id; - -// int callerThread = impl.callerThread; -// int suggestSchedule = (subjectId>>16) & queryProvider2.THREAD_MASK; - -// impl.inc(); - - if(info.isFunctional) { - session.querySupport.getObjects4(impl, subjectId, context, proc); - } else { - session.querySupport.getObjects4(impl, subjectId, context, proc); - } - - } - - @Override - public void forPossibleRelatedValueCompiled(AsyncReadGraph graph, Resource subject, final AsyncProcedure procedure) { - - assert(subject != null); - - final ForPossibleRelatedValueProcedure proc = (ForPossibleRelatedValueProcedure)procedure; - final RelationInfo info = proc.info; - - final ReadGraphImpl impl = (ReadGraphImpl)graph; - final int subjectId = ((ResourceImpl)subject).id; - -// int callerThread = impl.callerThread; -// int suggestSchedule = (subjectId>>16) & session.queryProvider2.THREAD_MASK; - -// impl.inc(); - -// if(callerThread == suggestSchedule) { - - if(info.isFunctional) { - getRelatedValue4(impl, subjectId, proc); - } else { - getRelatedValue4(impl, subjectId, proc); - } - -// } else { -// -// impl.state.barrier.inc(); -// impl.state.barrier.dec(callerThread); -// -// queryProvider2.schedule(callerThread, new SessionTask(suggestSchedule) { -// -// @Override -// public void run(int thread) { -// -// impl.state.barrier.inc(thread); -// impl.state.barrier.dec(); -// -// if(info.isFunctional) { -// getRelatedValue4(impl.newAsync(thread), subjectId, proc); -// } else { -// getRelatedValue4(impl.newAsync(thread), subjectId, proc); -// } -// -// } -// -// @Override -// public String toString() { -// return "gaff11"; -// } -// -// }); -// -// } - - } - - @Override - public void forPossibleRelatedValueCompiled(AsyncReadGraph graph, Resource subject, C context, final AsyncContextProcedure procedure) { - - assert(subject != null); - - final ForPossibleRelatedValueContextProcedure proc = (ForPossibleRelatedValueContextProcedure)procedure; - final RelationInfo info = proc.info; - - final ReadGraphImpl impl = (ReadGraphImpl)graph; - final int subjectId = ((ResourceImpl)subject).id; - -// int callerThread = impl.callerThread; -// int suggestSchedule = (subjectId>>16) & session.queryProvider2.THREAD_MASK; - -// impl.inc(); - - if(info.isFunctional) { - getRelatedValue4(impl, subjectId, context, proc); - } else { - getRelatedValue4(impl, subjectId, context, proc); - } - - } - - @Override - public void forPossibleType(final AsyncReadGraph graph, Resource subject, final AsyncProcedure procedure) { - - assert(subject != null); - - final ReadGraphImpl impl = (ReadGraphImpl)graph; - final int subjectId = ((ResourceImpl)subject).id; - - try { - - final ClusterI cluster = session.clusterTable.getClusterByResourceKey(subjectId); - if(!cluster.isLoaded()) { - -// impl.state.inc(0); - - session.queryProvider2.requestCluster(impl, cluster.getClusterId(), new Runnable() { - - @Override - public void run() { - - try { - - int result = cluster.getCompleteObjectKey(subjectId, session.clusterTranslator); - procedure.execute(graph, new ResourceImpl(session.resourceSupport, result)); - -// impl.state.dec(0); - - } catch (DatabaseException e) { - e.printStackTrace(); - } - - } - - }); - - } else { - - int result = cluster.getCompleteObjectKey(subjectId, session.clusterTranslator); - procedure.execute(graph, new ResourceImpl(session.resourceSupport, result)); - - } - - } catch (DatabaseException e) { - e.printStackTrace(); - } - - - - } - - @Override - public void forPossibleDirectType(final AsyncReadGraph graph, Resource subject, final C context, final AsyncContextProcedure procedure) { - - assert(subject != null); - - final ReadGraphImpl impl = (ReadGraphImpl)graph; - final int subjectId = ((ResourceImpl)subject).id; - - try { - - final ClusterI cluster = session.clusterTable.getClusterByResourceKey(subjectId); - if(!cluster.isLoaded()) { - -// impl.state.inc(0); - - session.queryProvider2.requestCluster(impl, cluster.getClusterId(), new Runnable() { - - @Override - public void run() { - - try { - - ClusterI.CompleteTypeEnum type = cluster.getCompleteType(subjectId, session.clusterTranslator); - if(ClusterI.CompleteTypeEnum.InstanceOf == type) { - int result = cluster.getCompleteObjectKey(subjectId, session.clusterTranslator); - procedure.execute(graph, context, new ResourceImpl(session.resourceSupport, result)); - } else { - procedure.execute(graph, context, null); - } - -// impl.state.dec(0); - - } catch (DatabaseException e) { - e.printStackTrace(); - } - - } - - }); - - } else { - - ClusterI.CompleteTypeEnum type = cluster.getCompleteType(subjectId, session.clusterTranslator); - if(ClusterI.CompleteTypeEnum.InstanceOf == type) { - int result = cluster.getCompleteObjectKey(subjectId, session.clusterTranslator); - procedure.execute(graph, context, new ResourceImpl(session.resourceSupport, result)); - } else { - procedure.execute(graph, context, null); - } - - } - - } catch (DatabaseException e) { - - procedure.execute(graph, context, null); - - } catch (Throwable t) { - - t.printStackTrace(); - procedure.execute(graph, context, null); - - } - - } - - - private void getRelatedValue4(final ReadGraphImpl graph, final int subject, final C context, final ForPossibleRelatedValueContextProcedure procedure) { - - int result = 0; - - final int predicate = procedure.predicateKey; - - if(subject < 0) { - - if(!SessionImplSocket.areVirtualStatementsLoaded(session.virtualGraphServerSupport, subject, predicate)) { - SessionImplSocket.loadVirtualStatements(session.virtualGraphServerSupport, graph, subject, predicate, new Callback() { - - @Override - public void run(ReadGraphImpl graph) { - getRelatedValue4(graph, subject, context, procedure); - } - - }); - return; - } - - for(TransientGraph g : session.virtualGraphServerSupport.providers) { - for (int id : g.getObjects(subject, predicate)) { - if(result != 0) { - procedure.exception(graph, new DatabaseException("Multiple objects")); -// graph.dec(); - return; - } else { - result = id; - } - } - } - - if(result == 0) { - - procedure.exception(graph, new DatabaseException("No objects for " + subject )); -// graph.dec(); - return; - - } else { - - getValue4(graph, null, result, context, procedure); - return; - - } - - } - - final org.simantics.db.procore.cluster.ClusterImpl cluster = session.clusterTable.getClusterByResourceKey(subject); - if(!cluster.isLoaded()) { - cluster.load(session.clusterTranslator, new Runnable() { - - @Override - public void run() { - getRelatedValue4(graph, subject, context, procedure); - } - - }); - return; - } - - if(cluster.hasVirtual() && session.virtualGraphServerSupport.virtuals.contains(subject)) { - - if(!SessionImplSocket.areVirtualStatementsLoaded(session.virtualGraphServerSupport, subject, predicate)) { - SessionImplSocket.loadVirtualStatements(session.virtualGraphServerSupport, graph, subject, predicate, new Callback() { - - @Override - public void run(ReadGraphImpl graph) { - getRelatedValue4(graph, subject, context, procedure); - } - - }); - return; - } - - for(TransientGraph g : session.virtualGraphServerSupport.providers) { - for (int id : g.getObjects(subject, predicate)) { - if(result != 0) { - procedure.exception(graph, new DatabaseException("Multiple objects")); -// graph.dec(); - return; - } else { - result = id; - } - } - } - - getRelatedDirectValue4(graph, cluster, subject, result, context, procedure); - - } else { - - getRelatedDirectValue4(graph, cluster, subject, 0, context, procedure); - - } - - } - - private void getValue4(final ReadGraphImpl graph, final ClusterImpl containerCluster, final int subject, final ForPossibleRelatedValueProcedure procedure) { - - Object result = null; - - if(subject < 0) { - - if(!SessionImplSocket.areVirtualStatementsLoaded(session.virtualGraphServerSupport, subject)) { - SessionImplSocket.loadVirtualStatements(session.virtualGraphServerSupport, graph, subject, new Callback() { - - @Override - public void run(ReadGraphImpl graph) { - getValue4(graph, containerCluster, subject, procedure); - } - - }); - return; - } - - for(TransientGraph g : session.virtualGraphServerSupport.providers) { - Object value = g.getValue(subject); - if(value != null) { - if(result != null) { - procedure.exception(graph, new DatabaseException("Multiple values")); -// graph.dec(); - return; - } else { - result = value; - } - } - } - - procedure.execute(graph, (T)"name"); -// graph.dec(); - return; - - } - - ClusterImpl cluster = containerCluster; - if(!containerCluster.contains(subject)) { - cluster = session.clusterTable.getClusterByResourceKey(subject); - if(!cluster.isLoaded()) { - cluster.load(session.clusterTranslator, new Runnable() { - - @Override - public void run() { - getValue4(graph, containerCluster, subject, procedure); - } - - }); - return; - } - } - - if(cluster.hasVirtual() && session.virtualGraphServerSupport.virtuals.contains(subject)) { - - if(!SessionImplSocket.areVirtualStatementsLoaded(session.virtualGraphServerSupport, subject)) { - SessionImplSocket.loadVirtualStatements(session.virtualGraphServerSupport, graph, subject, new Callback() { - - @Override - public void run(ReadGraphImpl graph) { - getValue4(graph, containerCluster, subject, procedure); - } - - }); - return; - } - - for(TransientGraph g : session.virtualGraphServerSupport.providers) { - Object value = g.getValue(subject); - if(value != null) { - if(result != null) { - procedure.exception(graph, new DatabaseException("Multiple values")); -// graph.dec(); - return; - } else { - result = value; - } - } - } - - if(result != null) { - - procedure.execute(graph, (T)result); -// graph.state.barrier.dec(); - - } else { - - if(ClusterTypeEnum.SMALL == cluster.getType()) - getDirectValue4(graph, (ClusterSmall)cluster, subject, procedure); - else - getDirectValue4(graph, (ClusterBig)cluster, subject, procedure); - } - - } else { - - if(ClusterTypeEnum.SMALL == cluster.getType()) - getDirectValue4(graph, (ClusterSmall)cluster, subject, procedure); - else - getDirectValue4(graph, (ClusterBig)cluster, subject, procedure); - - } - - } - - private void getValue4(final ReadGraphImpl graph, final ClusterImpl containerCluster, final int subject, final C context, final ForPossibleRelatedValueContextProcedure procedure) { - - Object result = null; - - if(subject < 0) { - - if(!SessionImplSocket.areVirtualStatementsLoaded(session.virtualGraphServerSupport, subject)) { - SessionImplSocket.loadVirtualStatements(session.virtualGraphServerSupport, graph, subject, new Callback() { - - @Override - public void run(ReadGraphImpl graph) { - getValue4(graph, containerCluster, subject, context, procedure); - } - - }); - return; - } - - for(TransientGraph g : session.virtualGraphServerSupport.providers) { - Object value = g.getValue(subject); - if(value != null) { - if(result != null) { - procedure.exception(graph, new DatabaseException("Multiple values")); -// graph.dec(); - return; - } else { - result = value; - } - } - } - - procedure.execute(graph, context, (T)"name"); -// graph.dec(); - return; - - } - - ClusterImpl cluster = containerCluster; - if(!containerCluster.contains(subject)) { - cluster = session.clusterTable.getClusterByResourceKey(subject); - if(!cluster.isLoaded()) { - cluster.load(session.clusterTranslator, new Runnable() { - - @Override - public void run() { - getValue4(graph, containerCluster, subject, context, procedure); - } - - }); - return; - } - } - - if(cluster.hasVirtual() && session.virtualGraphServerSupport.virtuals.contains(subject)) { - - if(!SessionImplSocket.areVirtualStatementsLoaded(session.virtualGraphServerSupport, subject)) { - SessionImplSocket.loadVirtualStatements(session.virtualGraphServerSupport, graph, subject, new Callback() { - - @Override - public void run(ReadGraphImpl graph) { - getValue4(graph, containerCluster, subject, context, procedure); - } - - }); - return; - } - - for(TransientGraph g : session.virtualGraphServerSupport.providers) { - Object value = g.getValue(subject); - if(value != null) { - if(result != null) { - procedure.exception(graph, new DatabaseException("Multiple values")); -// graph.dec(); - return; - } else { - result = value; - } - } - } - - if(result != null) { - - procedure.execute(graph, context, (T)result); -// graph.state.barrier.dec(); - - } else { - - if(ClusterTypeEnum.SMALL == cluster.getType()) - getDirectValue4(graph, (ClusterSmall)cluster, subject, context, procedure); - else - getDirectValue4(graph, (ClusterBig)cluster, subject, context, procedure); - } - - } else { - - if(ClusterTypeEnum.SMALL == cluster.getType()) - getDirectValue4(graph, (ClusterSmall)cluster, subject, context, procedure); - else - getDirectValue4(graph, (ClusterBig)cluster, subject, context, procedure); - - } - - } - - private void getRelatedDirectValue4(final ReadGraphImpl graph, final ClusterImpl cluster, final int subject, final int result, final ForPossibleRelatedValueProcedure procedure) { - - try { - - int so = cluster.getSingleObject(subject, procedure, session.clusterTranslator); - if(so == 0) { - if(result == 0) { - procedure.exception(graph, new DatabaseException("No objects " + subject + " " + procedure.predicateKey)); -// graph.dec(); - } else { - getValue4(graph, cluster, result, procedure); - } - } else { - if(result == 0) { - getValue4(graph, cluster, so, procedure); - } else { - procedure.exception(graph, new DatabaseException("Multiple objects")); -// graph.dec(); - } - } - - } catch (DatabaseException e) { - e.printStackTrace(); - } - - } - - private void getRelatedDirectValue4(final ReadGraphImpl graph, final ClusterImpl cluster, final int subject, final int result, final C context, final ForPossibleRelatedValueContextProcedure procedure) { - - try { - - int so = cluster.getSingleObject(subject, procedure, session.clusterTranslator); - if(so == 0) { - if(result == 0) { - procedure.exception(graph, new DatabaseException("No objects " + subject + " " + procedure.predicateKey)); -// graph.dec(); - } else { - getValue4(graph, cluster, result, context, procedure); - } - } else { - if(result == 0) { - getValue4(graph, cluster, so, context, procedure); - } else { - procedure.exception(graph, new DatabaseException("Multiple objects")); -// graph.dec(); - } - } - - } catch (DatabaseException e) { - e.printStackTrace(); - } - - } - - public void getRelatedValue4(final ReadGraphImpl graph, final int subject, final ForPossibleRelatedValueProcedure procedure) { - - int result = 0; - - final int predicate = procedure.predicateKey; - - if(subject < 0) { - - if(!SessionImplSocket.areVirtualStatementsLoaded(session.virtualGraphServerSupport, subject, predicate)) { - SessionImplSocket.loadVirtualStatements(session.virtualGraphServerSupport, graph, subject, predicate, new Callback() { - - @Override - public void run(ReadGraphImpl graph) { - getRelatedValue4(graph, subject, procedure); - } - - }); - return; - } - - for(TransientGraph g : session.virtualGraphServerSupport.providers) { - for (int id : g.getObjects(subject, predicate)) { - if(result != 0) { - procedure.exception(graph, new DatabaseException("Multiple objects")); -// graph.dec(); - return; - } else { - result = id; - } - } - } - - if(result == 0) { - - procedure.exception(graph, new DatabaseException("No objects for " + subject )); -// graph.dec(); - return; - - } else { - - getValue4(graph, null, result, procedure); - return; - - } - - } - - final org.simantics.db.procore.cluster.ClusterImpl cluster = session.clusterTable.getClusterByResourceKey(subject); - if(!cluster.isLoaded()) { - cluster.load(session.clusterTranslator, new Runnable() { - - @Override - public void run() { - getRelatedValue4(graph, subject, procedure); - } - - }); - return; - } - - if(cluster.hasVirtual() && session.virtualGraphServerSupport.virtuals.contains(subject)) { - - if(!SessionImplSocket.areVirtualStatementsLoaded(session.virtualGraphServerSupport, subject, predicate)) { - SessionImplSocket.loadVirtualStatements(session.virtualGraphServerSupport, graph, subject, predicate, new Callback() { - - @Override - public void run(ReadGraphImpl graph) { - getRelatedValue4(graph, subject, procedure); - } - - }); - return; - } - - for(TransientGraph g : session.virtualGraphServerSupport.providers) { - for (int id : g.getObjects(subject, predicate)) { - if(result != 0) { - procedure.exception(graph, new DatabaseException("Multiple objects")); -// graph.dec(); - return; - } else { - result = id; - } - } - } - - getRelatedDirectValue4(graph, cluster, subject, result, procedure); - - } else { - - getRelatedDirectValue4(graph, cluster, subject, 0, procedure); - - } - - } - - private void getDirectValue4(final ReadGraphImpl graph, final ClusterSmall cluster, final int subject, final C context, final ForPossibleRelatedValueContextProcedure procedure) { - - try { - byte[] bytes = cluster.getValue(subject, session.clusterTranslator); - T value = (T)utf(bytes); - procedure.execute(graph, context, value); - } catch (DatabaseException e) { - procedure.execute(graph, context, null); - } - -// graph.dec(); - - } - - private void getDirectValue4(final ReadGraphImpl graph, final ClusterBig cluster, final int subject, final ForPossibleRelatedValueProcedure procedure) { - - try { - byte[] bytes = cluster.getValue(subject, session.clusterTranslator); - T value = (T)utf(bytes); - procedure.execute(graph, value); - } catch (DatabaseException e) { - procedure.execute(graph, null); - } - -// graph.dec(); - - } - - private void getDirectValue4(final ReadGraphImpl graph, final ClusterBig cluster, final int subject, final C context, final ForPossibleRelatedValueContextProcedure procedure) { - - try { - byte[] bytes = cluster.getValue(subject, session.clusterTranslator); - if(bytes == null) { - procedure.execute(graph, context, null); - } else { - T value = (T)utf(bytes); - procedure.execute(graph, context, value); - } - } catch (DatabaseException e) { - procedure.execute(graph, context, null); - } - -// graph.dec(); - - } - - private final char[] chars = new char[1024]; - - private void getDirectValue4(final ReadGraphImpl graph, final ClusterSmall cluster, final int subject, final ForPossibleRelatedValueProcedure procedure) { - - ResourceTableSmall rt = cluster.resourceTable; - ValueTableSmall vt = cluster.valueTable; - - byte[] bs = vt.table; - long[] ls = rt.table; - - int index = ((subject&0xFFFF) << 1) - 1 + rt.offset; - - int valueIndex = (int)(ls[index] >>> 24) & 0x3FFFFF + vt.offset; - - int size = (int)bs[valueIndex++]-1; - valueIndex++; - for(int i=0;i= 0x80) { - if(length >= 0xc0) { - if(length >= 0xe0) { - if(length >= 0xf0) { - length &= 0x0f; - length += ((bytes[index++]&0xff)<<3); - length += ((bytes[index++]&0xff)<<11); - length += ((bytes[index++]&0xff)<<19); - length += 0x10204080; - } - else { - length &= 0x1f; - length += ((bytes[index++]&0xff)<<4); - length += ((bytes[index++]&0xff)<<12); - length += ((bytes[index++]&0xff)<<20); - length += 0x204080; - } - } - else { - length &= 0x3f; - length += ((bytes[index++]&0xff)<<5); - length += ((bytes[index++]&0xff)<<13); - length += 0x4080; - } - } - else { - length &= 0x7f; - length += ((bytes[index++]&0xff)<<6); - length += 0x80; - } - } - - int i = 0; - int target = length+index; - while(index < target) { - int c = bytes[index++]&0xff; - if(c <= 0x7F) { - chars[i++] = (char)(c&0x7F); - } else if (c > 0x07FF) { - int c2 = bytes[index++]&0xff; - int c3 = bytes[index++]&0xff; - chars[i++] = (char)(((c&0xf)<<12) + ((c2&0x3f)<<6) + (c3&0x3f)); - } else { - int c2 = bytes[index++]&0xff; - chars[i++] = (char)(((c&0x1f)<<6) + (c2&0x3f)); - } - - -// if (!((c >= 0x0001) && (c <= 0x007F))) { -// } else { -// } -// -// if ((c >= 0x0001) && (c <= 0x007F)) { -// bytearr[byteIndex++] = (byte)( c ); -// } else if (c > 0x07FF) { -// bytearr[byteIndex++] = (byte)(0xE0 | ((c >> 12) & 0x0F)); -// bytearr[byteIndex++] = (byte)(0x80 | ((c >> 6) & 0x3F)); -// bytearr[byteIndex++] = (byte)(0x80 | ((c >> 0) & 0x3F)); -// } else { -// bytearr[byteIndex++] = (byte)(0xC0 | ((c >> 6) & 0x1F)); -// bytearr[byteIndex++] = (byte)(0x80 | ((c >> 0) & 0x3F)); -// } -// } - - - } - return new String(chars, 0, i); - } - -} +package fi.vtt.simantics.procore.internal; + +import org.simantics.db.DirectStatements; +import org.simantics.db.ReadGraph; +import org.simantics.db.RelationInfo; +import org.simantics.db.Resource; +import org.simantics.db.exception.AssumptionException; +import org.simantics.db.exception.DatabaseException; +import org.simantics.db.exception.NoSingleResultException; +import org.simantics.db.impl.ClusterI; +import org.simantics.db.impl.ClusterI.ClusterTypeEnum; +import org.simantics.db.impl.ForEachObjectContextProcedure; +import org.simantics.db.impl.ForEachObjectProcedure; +import org.simantics.db.impl.ForPossibleRelatedValueContextProcedure; +import org.simantics.db.impl.ForPossibleRelatedValueProcedure; +import org.simantics.db.impl.ResourceImpl; +import org.simantics.db.impl.TransientGraph; +import org.simantics.db.impl.graph.ReadGraphImpl; +import org.simantics.db.procedure.SyncContextMultiProcedure; +import org.simantics.db.procedure.SyncContextProcedure; +import org.simantics.db.procedure.SyncMultiProcedure; +import org.simantics.db.procedure.SyncProcedure; +import org.simantics.db.procore.cluster.ClusterBig; +import org.simantics.db.procore.cluster.ClusterImpl; +import org.simantics.db.procore.cluster.ClusterSmall; +import org.simantics.db.procore.cluster.ResourceTableSmall; +import org.simantics.db.procore.cluster.ValueTableSmall; +import org.simantics.db.service.DirectQuerySupport; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * Note that the direct value retrieval in this implementation only supports + * String-type literals - nothing else! + * + * This implementation is mainly intended for optimizing database indexing + * performance. + */ +public class DirectQuerySupportImpl implements DirectQuerySupport { + + private static final Logger LOGGER = LoggerFactory.getLogger(DirectQuerySupportImpl.class); + + final private SessionImplSocket session; + + DirectQuerySupportImpl(SessionImplSocket session) { + this.session = session; + } + + @Override + final public DirectStatements getDirectPersistentStatements(ReadGraph graph, final Resource subject) { + ReadGraphImpl impl = (ReadGraphImpl)graph; + return impl.processor.getDirectStatements(impl, subject, true); + } + + @Override + final public DirectStatements getDirectStatements(ReadGraph graph, final Resource subject) { + ReadGraphImpl impl = (ReadGraphImpl)graph; + return impl.processor.getDirectStatements(impl, subject, false); + } + + @Override + public RelationInfo getRelationInfo(ReadGraph graph, Resource subject) throws DatabaseException { + ReadGraphImpl impl = (ReadGraphImpl)graph; + return impl.processor.getRelationInfo(impl, subject); + } + + @Override + public SyncMultiProcedure compileForEachObject(ReadGraph graph, final Resource relation, SyncMultiProcedure user) throws DatabaseException { + + RelationInfo info = getRelationInfo(graph, relation); + final int predicateKey = ((ResourceImpl)relation).id; + return new ForEachObjectProcedure(predicateKey, info, session.queryProvider2, user); + + } + + @Override + public SyncContextMultiProcedure compileForEachObject(ReadGraph graph, final Resource relation, SyncContextMultiProcedure user) throws DatabaseException { + + RelationInfo info = getRelationInfo(graph, relation); + final int predicateKey = ((ResourceImpl)relation).id; + return new ForEachObjectContextProcedure(predicateKey, info, session.queryProvider2, user); + + } + + @Override + public SyncProcedure compilePossibleRelatedValue(ReadGraph graph, final Resource relation, SyncProcedure user) throws DatabaseException { + + RelationInfo info = getRelationInfo(graph, relation); + final int predicateKey = ((ResourceImpl)relation).id; + return new ForPossibleRelatedValueProcedure(predicateKey, info, user); + + } + + @Override + public SyncContextProcedure compilePossibleRelatedValue(ReadGraph graph, final Resource relation, SyncContextProcedure user) throws DatabaseException { + + RelationInfo info = getRelationInfo(graph, relation); + final int predicateKey = ((ResourceImpl)relation).id; + return new ForPossibleRelatedValueContextProcedure(predicateKey, info, user); + + } + + @Override + public void forEachObjectCompiled(ReadGraph graph, Resource subject, final SyncMultiProcedure procedure) { + + assert(subject != null); + + final ForEachObjectProcedure proc = (ForEachObjectProcedure)procedure; +// final RelationInfo info = proc.info; + + final ReadGraphImpl impl = (ReadGraphImpl)graph; + final int subjectId = ((ResourceImpl)subject).id; + +// int callerThread = impl.callerThread; +// int suggestSchedule = (subjectId>>16) & queryProvider2.THREAD_MASK; + +// impl.inc(); + +// if(callerThread == suggestSchedule) { + +// if(info.isFunctional) { +// querySupport.getObjects4(impl, subjectId, proc); +// } else { + session.querySupport.getObjects4(impl, subjectId, proc); +// } + +// } else { +// +// impl.state.barrier.inc(); +// impl.state.barrier.dec(callerThread); +// +// queryProvider2.schedule(callerThread, new SessionTask(suggestSchedule) { +// +// @Override +// public void run(int thread) { +// +// impl.state.barrier.inc(thread); +// impl.state.barrier.dec(); +// +// if(info.isFunctional) { +// querySupport.getObjects4(impl.newAsync(thread), subjectId, proc); +// } else { +// querySupport.getObjects4(impl.newAsync(thread), subjectId, proc); +// } +// +// } +// +// @Override +// public String toString() { +// return "gaff8"; +// } +// +// }); +// +// } + + } + + @Override + public void forEachObjectCompiled(ReadGraph graph, Resource subject, C context, final SyncContextMultiProcedure procedure) { + + assert(subject != null); + + final ForEachObjectContextProcedure proc = (ForEachObjectContextProcedure)procedure; + final RelationInfo info = proc.info; + + final ReadGraphImpl impl = (ReadGraphImpl)graph; + final int subjectId = ((ResourceImpl)subject).id; + +// int callerThread = impl.callerThread; +// int suggestSchedule = (subjectId>>16) & queryProvider2.THREAD_MASK; + +// impl.inc(); + + if(info.isFunctional) { + session.querySupport.getObjects4(impl, subjectId, context, proc); + } else { + session.querySupport.getObjects4(impl, subjectId, context, proc); + } + + } + + @Override + public void forPossibleRelatedValueCompiled(ReadGraph graph, Resource subject, final SyncProcedure procedure) { + + assert(subject != null); + + final ForPossibleRelatedValueProcedure proc = (ForPossibleRelatedValueProcedure)procedure; + + final ReadGraphImpl impl = (ReadGraphImpl)graph; + final int subjectId = ((ResourceImpl)subject).id; + +// int callerThread = impl.callerThread; +// int suggestSchedule = (subjectId>>16) & session.queryProvider2.THREAD_MASK; + +// impl.inc(); + +// if(callerThread == suggestSchedule) { + +// if(proc.info.isFunctional) { + try { + T result = getRelatedValue4(impl, subjectId, proc); + try { + proc.execute(graph, result); + } catch (DatabaseException e2) { + LOGGER.error("Unexpected exception while handling related value", e2); + } + } catch (DatabaseException e) { + try { + proc.exception(graph, e); + } catch (DatabaseException e2) { + LOGGER.error("Unexpected exception while handling related value", e2); + } + } +// } else { +// getRelatedValue4(impl, subjectId, proc); +// } + +// } else { +// +// impl.state.barrier.inc(); +// impl.state.barrier.dec(callerThread); +// +// queryProvider2.schedule(callerThread, new SessionTask(suggestSchedule) { +// +// @Override +// public void run(int thread) { +// +// impl.state.barrier.inc(thread); +// impl.state.barrier.dec(); +// +// if(info.isFunctional) { +// getRelatedValue4(impl.newAsync(thread), subjectId, proc); +// } else { +// getRelatedValue4(impl.newAsync(thread), subjectId, proc); +// } +// +// } +// +// @Override +// public String toString() { +// return "gaff11"; +// } +// +// }); +// +// } + + } + + @Override + public void forPossibleRelatedValueCompiled(ReadGraph graph, Resource subject, C context, final SyncContextProcedure procedure) { + + assert(subject != null); + + final ForPossibleRelatedValueContextProcedure proc = (ForPossibleRelatedValueContextProcedure)procedure; + + final ReadGraphImpl impl = (ReadGraphImpl)graph; + final int subjectId = ((ResourceImpl)subject).id; + +// int callerThread = impl.callerThread; +// int suggestSchedule = (subjectId>>16) & session.queryProvider2.THREAD_MASK; + +// impl.inc(); + +// if(proc.info.isFunctional) { +// } else { +// getRelatedValue4(impl, subjectId, context, proc); +// } + + try { + T result = getRelatedValue4(impl, subjectId, context, proc); + proc.execute(graph, context, result); + } catch (DatabaseException e) { + proc.execute(graph, context, null); + } + + } + +/* @Override + public void forPossibleType(final AsyncReadGraph graph, Resource subject, final AsyncProcedure procedure) { + + assert(subject != null); + + final ReadGraphImpl impl = (ReadGraphImpl)graph; + final int subjectId = ((ResourceImpl)subject).id; + + try { + + final ClusterI cluster = session.clusterTable.getClusterByResourceKey(subjectId); + if(!cluster.isLoaded()) { + +// impl.state.inc(0); + + session.queryProvider2.requestCluster(impl, cluster.getClusterId(), new Runnable() { + + @Override + public void run() { + + try { + + int result = cluster.getCompleteObjectKey(subjectId, session.clusterTranslator); + procedure.execute(graph, new ResourceImpl(session.resourceSupport, result)); + +// impl.state.dec(0); + + } catch (DatabaseException e) { + e.printStackTrace(); + } + + } + + }); + + } else { + + int result = cluster.getCompleteObjectKey(subjectId, session.clusterTranslator); + procedure.execute(graph, new ResourceImpl(session.resourceSupport, result)); + + } + + } catch (DatabaseException e) { + e.printStackTrace(); + } + + + + } + + */ + + @Override + public void forPossibleDirectType(final ReadGraph graph, Resource subject, final C context, final SyncContextProcedure procedure) { + + assert(subject != null); + + final ReadGraphImpl impl = (ReadGraphImpl)graph; + final int subjectId = ((ResourceImpl)subject).id; + + try { + + final ClusterI cluster = session.clusterTable.getClusterByResourceKey(subjectId); + if(!cluster.isLoaded()) { + +// impl.state.inc(0); + + session.queryProvider2.requestCluster(impl, cluster.getClusterId(), new Runnable() { + + @Override + public void run() { + + try { + + ClusterI.CompleteTypeEnum type = cluster.getCompleteType(subjectId, session.clusterTranslator); + if(ClusterI.CompleteTypeEnum.InstanceOf == type) { + int result = cluster.getCompleteObjectKey(subjectId, session.clusterTranslator); + procedure.execute(graph, context, new ResourceImpl(session.resourceSupport, result)); + } else { + procedure.execute(graph, context, null); + } + +// impl.state.dec(0); + + } catch (DatabaseException e) { + LOGGER.error("forPossibleDirectType requestCluster callback failed", e); + } + + } + + }); + + } else { + + ClusterI.CompleteTypeEnum type = cluster.getCompleteType(subjectId, session.clusterTranslator); + if(ClusterI.CompleteTypeEnum.InstanceOf == type) { + int result = cluster.getCompleteObjectKey(subjectId, session.clusterTranslator); + procedure.execute(graph, context, new ResourceImpl(session.resourceSupport, result)); + } else { + procedure.execute(graph, context, null); + } + + } + + } catch (DatabaseException e) { + + procedure.execute(graph, context, null); + + } catch (Throwable t) { + + LOGGER.error("forPossibleDirectType failed unexpectedly", t); + procedure.execute(graph, context, null); + + } + + } + + private T getRelatedValue4(final ReadGraphImpl graph, final int subject, final C context, final ForPossibleRelatedValueContextProcedure procedure) throws DatabaseException { + + int result = 0; + + final int predicate = procedure.predicateKey; + + if(subject < 0) { + + if(!SessionImplSocket.areVirtualStatementsLoaded(session.virtualGraphServerSupport, subject, predicate)) { + SessionImplSocket.loadVirtualStatements(session.virtualGraphServerSupport, graph, subject, predicate, g -> {}); + return getRelatedValue4(graph, subject, context, procedure); + } + + for(TransientGraph g : session.virtualGraphServerSupport.providers) { + for (int id : g.getObjects(subject, predicate)) { + if(result != 0) { + throw new DatabaseException("Multiple objects"); + } else { + result = id; + } + } + } + + if(result == 0) { + throw new DatabaseException("No objects for " + subject ); + } else { + return getValue4(graph, null, result, context, procedure); + } + + } + + final org.simantics.db.procore.cluster.ClusterImpl cluster = session.clusterTable.getClusterByResourceKey(subject); + if(!cluster.isLoaded()) { + cluster.load(); + return getRelatedValue4(graph, subject, context, procedure); + } + + if(cluster.hasVirtual() && session.virtualGraphServerSupport.virtuals.contains(subject)) { + + if(!SessionImplSocket.areVirtualStatementsLoaded(session.virtualGraphServerSupport, subject, predicate)) { + SessionImplSocket.loadVirtualStatements(session.virtualGraphServerSupport, graph, subject, predicate, g -> {}); + return getRelatedValue4(graph, subject, context, procedure); + } + + for(TransientGraph g : session.virtualGraphServerSupport.providers) { + for (int id : g.getObjects(subject, predicate)) { + if(result != 0) { + throw new DatabaseException("Multiple objects"); + } else { + result = id; + } + } + } + + return getRelatedDirectValue4(graph, cluster, subject, result, context, procedure); + + } else { + + return getRelatedDirectValue4(graph, cluster, subject, 0, context, procedure); + + } + + } + + @SuppressWarnings("unchecked") + private T getValue4(final ReadGraphImpl graph, final ClusterImpl containerCluster, final int subject, final ForPossibleRelatedValueProcedure procedure) throws DatabaseException { + + Object result = null; + + if(subject < 0) { + + if(!SessionImplSocket.areVirtualStatementsLoaded(session.virtualGraphServerSupport, subject)) { + SessionImplSocket.loadVirtualStatements(session.virtualGraphServerSupport, graph, subject, g -> {}); + return getValue4(graph, containerCluster, subject, procedure); + } + + for(TransientGraph g : session.virtualGraphServerSupport.providers) { + Object value = g.getValue(subject); + if(value != null) { + if(result != null) { + throw new DatabaseException("Multiple values"); + } else { + result = value; + } + } + } + + // FIXME: throw something here instead + return (T)"name"; + + } + + ClusterImpl cluster = containerCluster; + if(!containerCluster.contains(subject)) { + cluster = session.clusterTable.getClusterByResourceKey(subject); + if(!cluster.isLoaded()) { + cluster.load(); + return getValue4(graph, containerCluster, subject, procedure); + } + } + + if(cluster.hasVirtual() && session.virtualGraphServerSupport.virtuals.contains(subject)) { + + if(!SessionImplSocket.areVirtualStatementsLoaded(session.virtualGraphServerSupport, subject)) { + SessionImplSocket.loadVirtualStatements(session.virtualGraphServerSupport, graph, subject, g -> {}); + return getValue4(graph, containerCluster, subject, procedure); + } + + for(TransientGraph g : session.virtualGraphServerSupport.providers) { + Object value = g.getValue(subject); + if(value != null) { + if(result != null) { + throw new DatabaseException("Multiple values"); + } else { + result = value; + } + } + } + + if(result != null) { + return (T)result; + } else { + if(ClusterTypeEnum.SMALL == cluster.getType()) + return getDirectValue4(graph, (ClusterSmall)cluster, subject); + else + return getDirectValue4(graph, (ClusterBig)cluster, subject); + } + + } else { + + if(ClusterTypeEnum.SMALL == cluster.getType()) + return getDirectValue4(graph, (ClusterSmall)cluster, subject); + else + return getDirectValue4(graph, (ClusterBig)cluster, subject); + + } + + } + + @SuppressWarnings("unchecked") + private T getValue4(final ReadGraphImpl graph, final ClusterImpl containerCluster, final int subject, final C context, final ForPossibleRelatedValueContextProcedure procedure) throws DatabaseException { + + Object result = null; + + if(subject < 0) { + + if(!SessionImplSocket.areVirtualStatementsLoaded(session.virtualGraphServerSupport, subject)) { + SessionImplSocket.loadVirtualStatements(session.virtualGraphServerSupport, graph, subject, g -> {}); + return getValue4(graph, containerCluster, subject, context, procedure); + } + + for(TransientGraph g : session.virtualGraphServerSupport.providers) { + Object value = g.getValue(subject); + if(value != null) { + if(result != null) { + throw new DatabaseException("Multiple values"); + } else { + result = value; + } + } + } + + // FIXME: throw something here instead + return (T)"name"; + + } + + ClusterImpl cluster = containerCluster; + if(!containerCluster.contains(subject)) { + cluster = session.clusterTable.getClusterByResourceKey(subject); + if(!cluster.isLoaded()) { + cluster.load(); + return getValue4(graph, containerCluster, subject, context, procedure); + } + } + + if(cluster.hasVirtual() && session.virtualGraphServerSupport.virtuals.contains(subject)) { + + if(!SessionImplSocket.areVirtualStatementsLoaded(session.virtualGraphServerSupport, subject)) { + SessionImplSocket.loadVirtualStatements(session.virtualGraphServerSupport, graph, subject, g -> {}); + return getValue4(graph, containerCluster, subject, context, procedure); + } + + for(TransientGraph g : session.virtualGraphServerSupport.providers) { + Object value = g.getValue(subject); + if(value != null) { + if(result != null) { + throw new DatabaseException("Multiple values"); + } else { + result = value; + } + } + } + + if(result != null) { + return (T)result; + } else { + if(ClusterTypeEnum.SMALL == cluster.getType()) + return getDirectValue4(graph, (ClusterSmall)cluster, subject); + else + return getDirectValue4(graph, (ClusterBig)cluster, subject); + } + + } else { + + if(ClusterTypeEnum.SMALL == cluster.getType()) + return getDirectValue4(graph, (ClusterSmall)cluster, subject); + else + return getDirectValue4(graph, (ClusterBig)cluster, subject); + + } + + } + + private T getRelatedDirectValue4(final ReadGraphImpl graph, final ClusterImpl cluster, final int subject, final int result, final ForPossibleRelatedValueProcedure procedure) throws DatabaseException { + + int so = cluster.getSingleObject(subject, procedure, session.clusterTranslator); + if(so == 0) { + if(result == 0) { + throw new DatabaseException("No objects " + subject + " " + procedure.predicateKey); + } else { + return getValue4(graph, cluster, result, procedure); + } + } else { + if(result == 0) { + return getValue4(graph, cluster, so, procedure); + } else { + throw new DatabaseException("Multiple objects"); + } + } + + } + + private T getRelatedDirectValue4(final ReadGraphImpl graph, final ClusterImpl cluster, final int subject, final int result, final C context, final ForPossibleRelatedValueContextProcedure procedure) throws DatabaseException { + + int so = cluster.getSingleObject(subject, procedure, session.clusterTranslator); + if(so == 0) { + if(result == 0) { + throw new NoSingleResultException("No objects " + subject + " " + procedure.predicateKey, result); + } else { + return getValue4(graph, cluster, result, context, procedure); + } + } else { + if(result == 0) { + return getValue4(graph, cluster, so, context, procedure); + } else { + throw new NoSingleResultException("Multiple objects for " + subject + " " + procedure.predicateKey, result); + } + } + + } + + public T getRelatedValue4(final ReadGraphImpl graph, final int subject, final ForPossibleRelatedValueProcedure procedure) throws DatabaseException { + + int result = 0; + + final int predicate = procedure.predicateKey; + + if(subject < 0) { + + if(!SessionImplSocket.areVirtualStatementsLoaded(session.virtualGraphServerSupport, subject, predicate)) { + SessionImplSocket.loadVirtualStatements(session.virtualGraphServerSupport, graph, subject, predicate, g -> {}); + return getRelatedValue4(graph, subject, procedure); + } + + for(TransientGraph g : session.virtualGraphServerSupport.providers) { + for (int id : g.getObjects(subject, predicate)) { + if(result != 0) { + throw new DatabaseException("Multiple objects"); + } else { + result = id; + } + } + } + + if(result == 0) { + throw new DatabaseException("No objects for " + subject ); + } else { + return getValue4(graph, null, result, procedure); + } + + } + + final org.simantics.db.procore.cluster.ClusterImpl cluster = session.clusterTable.getClusterByResourceKey(subject); + if(!cluster.isLoaded()) { + cluster.load(); + return getRelatedValue4(graph, subject, procedure); + } + + if(cluster.hasVirtual() && session.virtualGraphServerSupport.virtuals.contains(subject)) { + + if(!SessionImplSocket.areVirtualStatementsLoaded(session.virtualGraphServerSupport, subject, predicate)) { + SessionImplSocket.loadVirtualStatements(session.virtualGraphServerSupport, graph, subject, predicate, g -> {}); + return getRelatedValue4(graph, subject, procedure); + } + + for(TransientGraph g : session.virtualGraphServerSupport.providers) { + for (int id : g.getObjects(subject, predicate)) { + if(result != 0) { + throw new DatabaseException("Multiple objects"); + } else { + result = id; + } + } + } + + return getRelatedDirectValue4(graph, cluster, subject, result, procedure); + + } else { + + return getRelatedDirectValue4(graph, cluster, subject, 0, procedure); + + } + + } + + /* + private void getDirectValue4(final ReadGraphImpl graph, final ClusterSmall cluster, final int subject, final C context, final ForPossibleRelatedValueContextProcedure procedure) { + + try { + byte[] bytes = cluster.getValue(subject, session.clusterTranslator); + T value = (T)utf(bytes); + procedure.execute(graph, context, value); + } catch (DatabaseException e) { + procedure.execute(graph, context, null); + } + +// graph.dec(); + + } + */ + + @SuppressWarnings("unchecked") + private T getDirectValue4(final ReadGraphImpl graph, final ClusterBig cluster, final int subject) throws DatabaseException { + + byte[] bytes = cluster.getValue(subject, session.clusterTranslator); + return (T) utf(bytes, 0); + + } + + @SuppressWarnings("unchecked") + private T getDirectValue4(final ReadGraphImpl graph, final ClusterSmall cluster, final int subject) throws DatabaseException { + // Note: this code avoids creating an intermediate byte[] + // to store the encoded string bytes and reads the UTF string + // from the value table byte[] directly into String instead. + + ResourceTableSmall rt = cluster.resourceTable; + ValueTableSmall vt = cluster.valueTable; + + byte[] bs = vt.table; + long[] ls = rt.table; + + int index = ((subject&0xFFF) << 1) - 1 + rt.offset; + int valueIndex = ((int)(ls[index] >>> 24) & 0x3FFFFF) + vt.offset; + + int size = bs[valueIndex++]; + if (size < 0) // two byte size + size = (int)(((size & 0x7F) << 8) | (bs[valueIndex++] & 0xFF)); + if (size <= 0) + throw new DatabaseException("No value for " + subject); + + return (T) utf(bs, valueIndex); + } + + private static final String utf(byte[] bytes, int offset) throws AssumptionException { + + if(bytes == null) return null; + + // Read databoard int32 using Length encoding + // https://dev.simantics.org/index.php/Databoard_Specification#Length + int index = offset; + int length = bytes[index++]&0xff; + if(length >= 0x80) { + if(length >= 0xc0) { + if(length >= 0xe0) { + if(length >= 0xf0) { + length &= 0x0f; + length += ((bytes[index++]&0xff)<<3); + length += ((bytes[index++]&0xff)<<11); + length += ((bytes[index++]&0xff)<<19); + length += 0x10204080; + } + else { + length &= 0x1f; + length += ((bytes[index++]&0xff)<<4); + length += ((bytes[index++]&0xff)<<12); + length += ((bytes[index++]&0xff)<<20); + length += 0x204080; + } + } + else { + length &= 0x3f; + length += ((bytes[index++]&0xff)<<5); + length += ((bytes[index++]&0xff)<<13); + length += 0x4080; + } + } + else { + length &= 0x7f; + length += ((bytes[index++]&0xff)<<6); + length += 0x80; + } + } + + // Copied from DataInputStream + int utflen = length; + char[] chararr = new char[utflen]; + + int c, char2, char3; + int count = index; + int target = index + length; + int chararr_count=0; + + while (count < target) { + c = (int) bytes[count] & 0xff; + if (c > 127) break; + count++; + chararr[chararr_count++]=(char)c; + } + + while (count < target) { + c = (int) bytes[count] & 0xff; + switch (c >> 4) { + case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7: + /* 0xxxxxxx*/ + count++; + chararr[chararr_count++]=(char)c; + break; + case 12: case 13: + /* 110x xxxx 10xx xxxx*/ + count += 2; + if (count > target) + throw new AssumptionException( + "malformed input: partial character at end (" + (count-index) + " > " + utflen + ")"); + char2 = (int) bytes[count-1]; + if ((char2 & 0xC0) != 0x80) + throw new AssumptionException( + "malformed input around byte " + count); + chararr[chararr_count++]=(char)(((c & 0x1F) << 6) | + (char2 & 0x3F)); + break; + case 14: + /* 1110 xxxx 10xx xxxx 10xx xxxx */ + count += 3; + if (count > target) + throw new AssumptionException( + "malformed input: partial character at end (" + (count-index) + " > " + utflen + ")"); + char2 = (int) bytes[count-2]; + char3 = (int) bytes[count-1]; + if (((char2 & 0xC0) != 0x80) || ((char3 & 0xC0) != 0x80)) + throw new AssumptionException( + "malformed input around byte " + (count-1)); + chararr[chararr_count++]=(char)(((c & 0x0F) << 12) | + ((char2 & 0x3F) << 6) | + ((char3 & 0x3F) << 0)); + break; + default: + /* 10xx xxxx, 1111 xxxx */ + throw new AssumptionException( + "malformed input around byte " + count); + } + } + + // The number of chars produced may be less than utflen + return new String(chararr, 0, chararr_count); + } + +}