bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/ConsistsOfProcess.java

   1 package org.simantics.db.layer0.util;
   2
   3 import java.util.ArrayList;
   4 import java.util.Collection;
   5 import java.util.HashSet;
   6 import java.util.List;
   7 import java.util.Set;
   8
   9 import org.simantics.databoard.Bindings;
  10 import org.simantics.db.ReadGraph;
  11 import org.simantics.db.Resource;
  12 import org.simantics.db.ResourceMap;
  13 import org.simantics.db.common.request.ReadRequest;
  14 import org.simantics.db.common.utils.Logger;
  15 import org.simantics.db.exception.DatabaseException;
  16 import org.simantics.db.layer0.adapter.SubgraphExtent.ExtentStatus;
  17 import org.simantics.db.layer0.util.TransferableGraphConfiguration2.SeedSpec;
  18 import org.simantics.db.layer0.util.TransferableGraphConfiguration2.SeedSpec.SeedSpecType;
  19 import org.simantics.db.procedure.SyncContextMultiProcedure;
  20 import org.simantics.db.service.DirectQuerySupport;
  21 import org.simantics.layer0.Layer0;
  22 import org.simantics.utils.datastructures.Pair;
  23
  24 class ConsistsOfProcess {
  25
  26         final List<ConsistsOfProcessEntry> result;
  27         final Set<Resource> childrenWithNoName;
  28         final SyncContextMultiProcedure<ConsistsOfProcessEntry, Resource> structure;
  29         final SyncContextMultiProcedure<ConsistsOfProcessEntry, Resource> names;
  30
  31         public static Pair<List<ConsistsOfProcessEntry>,Set<Resource>> walk(ReadGraph graph, Collection<SeedSpec> specs, boolean ignoreVirtual) throws DatabaseException {
  32                 return walk(graph, null, specs, ignoreVirtual);
  33         }
  34
  35         public static Pair<List<ConsistsOfProcessEntry>,Set<Resource>> walk(ReadGraph graph, ResourceMap<ExtentStatus> status, Collection<SeedSpec> specs, boolean ignoreVirtual) throws DatabaseException {
  36
  37         ConsistsOfProcess process = new ConsistsOfProcess(graph, status, specs, ignoreVirtual);
  38         return Pair.make(process.result, process.childrenWithNoName);
  39
  40     }
  41
  42     static class ConsistsOfProcessEntry {
  43         public ConsistsOfProcessEntry parent;
  44         public Resource resource;
  45         public boolean valid = true;
  46         public String name = null;
  47         ConsistsOfProcessEntry(ConsistsOfProcessEntry parent, Resource resource) {
  48                 this.parent = parent;
  49                 this.resource = resource;
  50         }
  51     }
  52
  53     private ConsistsOfProcess(ReadGraph graph, ResourceMap<ExtentStatus> status, final Collection<SeedSpec> seeds, final boolean ignoreVirtual) throws DatabaseException {
  54
  55                 final Layer0 L0 = Layer0.getInstance(graph);
  56                 final DirectQuerySupport dqs = graph.getService(DirectQuerySupport.class);
  57
  58                 result = new ArrayList<>();
  59                 childrenWithNoName = new HashSet<>();
  60                 names = dqs.compileForEachObject(graph, L0.HasName, new SyncContextMultiProcedure<ConsistsOfProcessEntry, Resource>() {
  61
  62                         @Override
  63                         public void execute(ReadGraph graph, ConsistsOfProcessEntry entry, Resource nameResource) throws DatabaseException {
  64
  65                                 if(status != null)
  66                                         status.put(nameResource, ExtentStatus.EXCLUDED);
  67
  68                             if(!entry.valid) return;
  69
  70                                 String name = graph.getValue(nameResource, Bindings.STRING);
  71                                 if(name == null) {
  72                                         entry.valid = false;
  73                                 } else if (entry.name != null) {
  74                                         entry.valid = false;
  75                                 } else {
  76                                         entry.name = name;
  77                                 }
  78
  79
  80                         }
  81
  82                         @Override
  83                         public void exception(ReadGraph graph, Throwable throwable) {
  84                                 Logger.defaultLogError(throwable);
  85                         }
  86
  87                         @Override
  88                         public void finished(ReadGraph graph, ConsistsOfProcessEntry entry) {
  89                             if(entry.valid) {
  90                                 if(entry.name != null) {
  91                                     result.add(entry);
  92                                 } else {
  93                                     // This one did not have a name - not a valid internal
  94                                     childrenWithNoName.add(entry.resource);
  95                                 }
  96                             } else {
  97                                 // Something wrong has happened. Do not treat as valid internal
  98                                 childrenWithNoName.add(entry.resource);
  99                             }
 100                         }
 101                 });
 102
 103                 structure = dqs.compileForEachObject(graph, L0.ConsistsOf, new SyncContextMultiProcedure<ConsistsOfProcessEntry, Resource>() {
 104
 105                         @Override
 106                         public void execute(ReadGraph graph, ConsistsOfProcessEntry parent, Resource child) {
 107
 108                                 if(status != null)
 109                                         if(ExtentStatus.EXCLUDED.equals(status.get(child))) return;
 110
 111                                 if(!ignoreVirtual || child.isPersistent()) {
 112                                         ConsistsOfProcessEntry entry = new ConsistsOfProcessEntry(parent, child);
 113                                         dqs.forEachObjectCompiled(graph, child, entry, structure);
 114                                         dqs.forEachObjectCompiled(graph, child, entry, names);
 115                                 }
 116
 117                         }
 118
 119                         @Override
 120                         public void finished(ReadGraph graph, ConsistsOfProcessEntry parent) {
 121                         }
 122
 123                         @Override
 124                         public void exception(ReadGraph graph, Throwable throwable) {
 125                                 Logger.defaultLogError(throwable);
 126                         }
 127
 128                 });
 129
 130                 graph.syncRequest(new ReadRequest() {
 131
 132                         @Override
 133                         public void run(ReadGraph graph) throws DatabaseException {
 134                                 for(SeedSpec seed  : seeds) {
 135
 136                                         if(status != null) {
 137                                                 ExtentStatus es = status.get(seed.resource);
 138                                                 if(ExtentStatus.EXCLUDED.equals(es)) continue;
 139                                                 if(ExtentStatus.EXTERNAL.equals(es)) continue;
 140                                         }
 141
 142                                         ConsistsOfProcessEntry entry = new ConsistsOfProcessEntry(null, seed.resource);
 143
 144                                         dqs.forEachObjectCompiled(graph, seed.resource, entry, structure);
 145                                         if(SeedSpecType.INTERNAL.equals(seed.specType)) {
 146                                                 // Process names only for internal seeds
 147                                                 dqs.forEachObjectCompiled(graph, seed.resource, entry, names);
 148                                         }
 149                                 }
 150                         }
 151
 152                 });
 153
 154         }
 155
 156
 157 }