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.db.AsyncReadGraph;
  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.AsyncContextMultiProcedure;
  20 import org.simantics.db.procedure.Procedure;
  21 import org.simantics.db.service.DirectQuerySupport;
  22 import org.simantics.layer0.Layer0;
  23 import org.simantics.utils.datastructures.Pair;
  24
  25 class ConsistsOfProcess {
  26
  27         final List<ConsistsOfProcessEntry> result;
  28         final Set<Resource> childrenWithNoName;
  29         final AsyncContextMultiProcedure<ConsistsOfProcessEntry, Resource> structure;
  30         final AsyncContextMultiProcedure<ConsistsOfProcessEntry, Resource> names;
  31
  32         public static Pair<List<ConsistsOfProcessEntry>,Set<Resource>> walk(ReadGraph graph, Collection<SeedSpec> specs, boolean ignoreVirtual) throws DatabaseException {
  33                 return walk(graph, null, specs, ignoreVirtual);
  34         }
  35
  36         public static Pair<List<ConsistsOfProcessEntry>,Set<Resource>> walk(ReadGraph graph, ResourceMap<ExtentStatus> status, Collection<SeedSpec> specs, boolean ignoreVirtual) throws DatabaseException {
  37
  38         ConsistsOfProcess process = new ConsistsOfProcess(graph, status, specs, ignoreVirtual);
  39         return Pair.make(process.result, process.childrenWithNoName);
  40
  41     }
  42
  43     static class ConsistsOfProcessEntry {
  44         public ConsistsOfProcessEntry parent;
  45         public Resource resource;
  46         public boolean valid = true;
  47         public String name = null;
  48         ConsistsOfProcessEntry(ConsistsOfProcessEntry parent, Resource resource) {
  49                 this.parent = parent;
  50                 this.resource = resource;
  51         }
  52     }
  53
  54     private ConsistsOfProcess(ReadGraph graph, ResourceMap<ExtentStatus> status, final Collection<SeedSpec> seeds, final boolean ignoreVirtual) throws DatabaseException {
  55
  56                 final Layer0 L0 = Layer0.getInstance(graph);
  57                 final DirectQuerySupport dqs = graph.getService(DirectQuerySupport.class);
  58
  59                 result = new ArrayList<>();
  60                 childrenWithNoName = new HashSet<>();
  61                 names = dqs.compileForEachObject(graph, L0.HasName, new AsyncContextMultiProcedure<ConsistsOfProcessEntry, Resource>() {
  62
  63                         @Override
  64                         public void execute(AsyncReadGraph graph, ConsistsOfProcessEntry entry, Resource nameResource) {
  65
  66                                 if(status != null)
  67                                         status.put(nameResource, ExtentStatus.EXCLUDED);
  68
  69                                 graph.forPossibleValue(nameResource, new Procedure<String>() {
  70
  71                                         @Override
  72                                         public void execute(String name) {
  73                                             if(!entry.valid) return;
  74
  75                                             if(name == null) {
  76                                                 entry.valid = false;
  77                                             } else if (entry.name != null) {
  78                                                 entry.valid = false;
  79                                             } else {
  80                                                 entry.name = name;
  81                                             }
  82                                         }
  83
  84                                         @Override
  85                                         public void exception(Throwable t) {
  86                                                 Logger.defaultLogError(t);
  87                                         }
  88
  89                                 });
  90                         }
  91
  92                         @Override
  93                         public void exception(AsyncReadGraph graph, Throwable throwable) {
  94                                 Logger.defaultLogError(throwable);
  95                         }
  96
  97                         @Override
  98                         public void finished(AsyncReadGraph graph, ConsistsOfProcessEntry entry) {
  99                             if(entry.valid) {
 100                                 if(entry.name != null) {
 101                                     result.add(entry);
 102                                 } else {
 103                                     // This one did not have a name - not a valid internal
 104                                     childrenWithNoName.add(entry.resource);
 105                                 }
 106                             } else {
 107                                 // Something wrong has happened. Do not treat as valid internal
 108                                 childrenWithNoName.add(entry.resource);
 109                             }
 110                         }
 111                 });
 112
 113                 structure = dqs.compileForEachObject(graph, L0.ConsistsOf, new AsyncContextMultiProcedure<ConsistsOfProcessEntry, Resource>() {
 114
 115                         @Override
 116                         public void execute(AsyncReadGraph graph, ConsistsOfProcessEntry parent, Resource child) {
 117
 118                                 if(status != null)
 119                                         if(ExtentStatus.EXCLUDED.equals(status.get(child))) return;
 120
 121                                 if(!ignoreVirtual || child.isPersistent()) {
 122                                         ConsistsOfProcessEntry entry = new ConsistsOfProcessEntry(parent, child);
 123                                         dqs.forEachObjectCompiled(graph, child, entry, structure);
 124                                         dqs.forEachObjectCompiled(graph, child, entry, names);
 125                                 }
 126
 127                         }
 128
 129                         @Override
 130                         public void finished(AsyncReadGraph graph, ConsistsOfProcessEntry parent) {
 131                         }
 132
 133                         @Override
 134                         public void exception(AsyncReadGraph graph, Throwable throwable) {
 135                                 Logger.defaultLogError(throwable);
 136                         }
 137
 138                 });
 139
 140                 graph.syncRequest(new ReadRequest() {
 141
 142                         @Override
 143                         public void run(ReadGraph graph) throws DatabaseException {
 144                                 for(SeedSpec seed  : seeds) {
 145
 146                                         if(status != null) {
 147                                                 ExtentStatus es = status.get(seed.resource);
 148                                                 if(ExtentStatus.EXCLUDED.equals(es)) continue;
 149                                                 if(ExtentStatus.EXTERNAL.equals(es)) continue;
 150                                         }
 151
 152                                         ConsistsOfProcessEntry entry = new ConsistsOfProcessEntry(null, seed.resource);
 153
 154                                         dqs.forEachObjectCompiled(graph, seed.resource, entry, structure);
 155                                         if(SeedSpecType.INTERNAL.equals(seed.specType)) {
 156                                                 // Process names only for internal seeds
 157                                                 dqs.forEachObjectCompiled(graph, seed.resource, entry, names);
 158                                         }
 159                                 }
 160                         }
 161
 162                 });
 163
 164         }
 165
 166
 167 }