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