-package org.simantics.db.common;\r
-\r
-import java.util.HashSet;\r
-import java.util.Set;\r
-\r
-import org.simantics.databoard.adapter.AdaptException;\r
-import org.simantics.databoard.binding.Binding;\r
-import org.simantics.db.ReadGraph;\r
-import org.simantics.db.Resource;\r
-import org.simantics.db.exception.DatabaseException;\r
-import org.simantics.graph.representation.TransferableGraph1;\r
-import org.simantics.graph.representation.TransferableGraphUtils;\r
-import org.simantics.graph.representation.Value;\r
-import org.simantics.layer0.Layer0;\r
-\r
-public class TransferableGraphRequests {\r
- \r
- private TransferableGraph1 tg;\r
- private ReadGraph graph;\r
- \r
- public TransferableGraphRequests(TransferableGraph1 tg, ReadGraph graph) {\r
- this.tg = tg;\r
- this.graph = graph;\r
- }\r
-\r
- public Resource getExternal(int id) throws DatabaseException {\r
- String uri = TransferableGraphUtils.getURI(tg, id);\r
- return graph.getPossibleResource(uri);\r
- }\r
- \r
- public Set<Integer> getObjects(int subject, Resource relation) throws DatabaseException {\r
-\r
- Set<Integer> result = new HashSet<Integer>();\r
- for(int i=0;i<tg.statements.length;i+=4) {\r
- if(tg.statements[i] == subject) {\r
- Resource predicate = getExternal(tg.statements[i+1]);\r
- if(predicate != null)\r
- if(graph.isSubrelationOf(predicate, relation)) result.add(tg.statements[i+3]); \r
- }\r
- }\r
- return result;\r
- \r
- }\r
-\r
- public Set<Integer> getSubjects(int object, Resource inverseRelation) throws DatabaseException {\r
-\r
- Set<Integer> result = new HashSet<Integer>();\r
- for(int i=0;i<tg.statements.length;i+=4) {\r
- if(tg.statements[i+3] == object) {\r
- Resource predicate = getExternal(tg.statements[i+2]);\r
- if(predicate != null)\r
- if(graph.isSubrelationOf(predicate, inverseRelation)) result.add(tg.statements[i]); \r
- }\r
- }\r
- return result;\r
- \r
- }\r
-\r
- public int getPossibleObject(int subject, Resource relation) throws DatabaseException {\r
- Set<Integer> objects = getObjects(subject, relation);\r
- if(objects.size() == 1) return objects.iterator().next();\r
- return -1;\r
- }\r
-\r
- public int getSingleObject(int subject, Resource relation) throws DatabaseException {\r
-\r
- Set<Integer> objects = getObjects(subject, relation);\r
- if(objects.size() == 1) return objects.iterator().next();\r
- else if (objects.size() == 0) throw new DatabaseException("No objects for subject " + subject + " and relation " + graph.getURI(relation));\r
- else throw new DatabaseException("Multiple (" + objects.size() + ") objects for subject " + subject + " and relation " + graph.getURI(relation));\r
- \r
- }\r
-\r
- public int getPossibleSubject(int object, Resource inverseRelation) throws DatabaseException {\r
- Set<Integer> subjects = getSubjects(object, inverseRelation);\r
- if(subjects.size() == 1) return subjects.iterator().next();\r
- return -1;\r
- }\r
-\r
- public int getSingleSubject(int object, Resource inverseRelation) throws DatabaseException {\r
-\r
- Set<Integer> subjects = getObjects(object, inverseRelation);\r
- if(subjects.size() == 1) return subjects.iterator().next();\r
- else if (subjects.size() == 0) throw new DatabaseException("No subjects for object " + object + " and relation " + graph.getURI(inverseRelation));\r
- else throw new DatabaseException("Multiple (" + subjects.size() + ") subjects for object " + object + " and relation " + graph.getURI(inverseRelation));\r
- \r
- }\r
-\r
- public <T> T getRelatedValue(int subject, Resource relation, Binding binding) throws DatabaseException {\r
- \r
- int object = getSingleObject(subject, relation);\r
- return getValue(object, binding);\r
- \r
- }\r
-\r
- public <T> T getPossibleRelatedValue(int subject, Resource relation, Binding binding) throws DatabaseException {\r
- int object = getPossibleObject(subject, relation);\r
- if (object == -1)\r
- return null;\r
- return getPossibleValue(object, binding);\r
- }\r
-\r
- @SuppressWarnings("unchecked")\r
- public <T> T getValue(int subject, Binding binding) throws DatabaseException {\r
-\r
- Value value = TransferableGraphUtils.findValue(tg, subject);\r
- if(value == null) throw new DatabaseException("No value for subject " + subject);\r
- try {\r
- return (T)value.value.getValue(binding);\r
- } catch (AdaptException e) {\r
- throw new DatabaseException(e);\r
- }\r
- \r
- }\r
-\r
- @SuppressWarnings("unchecked")\r
- public <T> T getPossibleValue(int subject, Binding binding) {\r
- Value value = TransferableGraphUtils.findValue(tg, subject);\r
- if(value == null) return null;\r
- try {\r
- return (T)value.value.getValue(binding);\r
- } catch (AdaptException e) {\r
- return null;\r
- }\r
- }\r
-\r
- public boolean isInstanceOf(int subject, Resource type) throws DatabaseException {\r
-\r
- Layer0 L0 = Layer0.getInstance(graph);\r
- for(int t : getObjects(subject, L0.InstanceOf)) {\r
- Resource tr = getExternal(t);\r
- if(tr != null)\r
- if(graph.isInheritedFrom(tr, type)) return true;\r
- }\r
- \r
- return false;\r
- \r
- }\r
- \r
-\r
- public String formatResource(int r) throws DatabaseException {\r
- \r
- String result = "" + r;\r
- String uri = TransferableGraphUtils.getURI(tg, r);\r
- if(!uri.isEmpty()) result = uri;\r
- \r
- Value value = TransferableGraphUtils.findValue(tg, r);\r
- if(value != null) result += " (value " + value.value + ")";\r
- \r
- return result;\r
- \r
- }\r
- \r
- public String listStatements() throws DatabaseException {\r
- \r
- StringBuilder b = new StringBuilder();\r
- for(int i=0;i<tg.statements.length;i+=4) {\r
- int subject = tg.statements[i];\r
- int predicate = tg.statements[i+1];\r
- int object = tg.statements[i+3];\r
- b.append(formatResource(subject) + " " + formatResource(predicate) + " " + formatResource(object) + "\n");\r
- }\r
- return b.toString();\r
- \r
- }\r
- \r
- public ReadGraph getGraph() {\r
- return graph;\r
- }\r
- \r
-}\r
+package org.simantics.db.common;
+
+import java.util.HashSet;
+import java.util.Set;
+
+import org.simantics.databoard.adapter.AdaptException;
+import org.simantics.databoard.binding.Binding;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.graph.representation.TransferableGraph1;
+import org.simantics.graph.representation.TransferableGraphUtils;
+import org.simantics.graph.representation.Value;
+import org.simantics.layer0.Layer0;
+
+public class TransferableGraphRequests {
+
+ private TransferableGraph1 tg;
+ private ReadGraph graph;
+
+ public TransferableGraphRequests(TransferableGraph1 tg, ReadGraph graph) {
+ this.tg = tg;
+ this.graph = graph;
+ }
+
+ public Resource getExternal(int id) throws DatabaseException {
+ String uri = TransferableGraphUtils.getURI(tg, id);
+ return graph.getPossibleResource(uri);
+ }
+
+ public Set<Integer> getObjects(int subject, Resource relation) throws DatabaseException {
+
+ Set<Integer> result = new HashSet<Integer>();
+ for(int i=0;i<tg.statements.length;i+=4) {
+ if(tg.statements[i] == subject) {
+ Resource predicate = getExternal(tg.statements[i+1]);
+ if(predicate != null)
+ if(graph.isSubrelationOf(predicate, relation)) result.add(tg.statements[i+3]);
+ }
+ }
+ return result;
+
+ }
+
+ public Set<Integer> getSubjects(int object, Resource inverseRelation) throws DatabaseException {
+
+ Set<Integer> result = new HashSet<Integer>();
+ for(int i=0;i<tg.statements.length;i+=4) {
+ if(tg.statements[i+3] == object) {
+ Resource predicate = getExternal(tg.statements[i+2]);
+ if(predicate != null)
+ if(graph.isSubrelationOf(predicate, inverseRelation)) result.add(tg.statements[i]);
+ }
+ }
+ return result;
+
+ }
+
+ public int getPossibleObject(int subject, Resource relation) throws DatabaseException {
+ Set<Integer> objects = getObjects(subject, relation);
+ if(objects.size() == 1) return objects.iterator().next();
+ return -1;
+ }
+
+ public int getSingleObject(int subject, Resource relation) throws DatabaseException {
+
+ Set<Integer> objects = getObjects(subject, relation);
+ if(objects.size() == 1) return objects.iterator().next();
+ else if (objects.size() == 0) throw new DatabaseException("No objects for subject " + subject + " and relation " + graph.getURI(relation));
+ else throw new DatabaseException("Multiple (" + objects.size() + ") objects for subject " + subject + " and relation " + graph.getURI(relation));
+
+ }
+
+ public int getPossibleSubject(int object, Resource inverseRelation) throws DatabaseException {
+ Set<Integer> subjects = getSubjects(object, inverseRelation);
+ if(subjects.size() == 1) return subjects.iterator().next();
+ return -1;
+ }
+
+ public int getSingleSubject(int object, Resource inverseRelation) throws DatabaseException {
+
+ Set<Integer> subjects = getObjects(object, inverseRelation);
+ if(subjects.size() == 1) return subjects.iterator().next();
+ else if (subjects.size() == 0) throw new DatabaseException("No subjects for object " + object + " and relation " + graph.getURI(inverseRelation));
+ else throw new DatabaseException("Multiple (" + subjects.size() + ") subjects for object " + object + " and relation " + graph.getURI(inverseRelation));
+
+ }
+
+ public <T> T getRelatedValue(int subject, Resource relation, Binding binding) throws DatabaseException {
+
+ int object = getSingleObject(subject, relation);
+ return getValue(object, binding);
+
+ }
+
+ public <T> T getPossibleRelatedValue(int subject, Resource relation, Binding binding) throws DatabaseException {
+ int object = getPossibleObject(subject, relation);
+ if (object == -1)
+ return null;
+ return getPossibleValue(object, binding);
+ }
+
+ @SuppressWarnings("unchecked")
+ public <T> T getValue(int subject, Binding binding) throws DatabaseException {
+
+ Value value = TransferableGraphUtils.findValue(tg, subject);
+ if(value == null) throw new DatabaseException("No value for subject " + subject);
+ try {
+ return (T)value.value.getValue(binding);
+ } catch (AdaptException e) {
+ throw new DatabaseException(e);
+ }
+
+ }
+
+ @SuppressWarnings("unchecked")
+ public <T> T getPossibleValue(int subject, Binding binding) {
+ Value value = TransferableGraphUtils.findValue(tg, subject);
+ if(value == null) return null;
+ try {
+ return (T)value.value.getValue(binding);
+ } catch (AdaptException e) {
+ return null;
+ }
+ }
+
+ public boolean isInstanceOf(int subject, Resource type) throws DatabaseException {
+
+ Layer0 L0 = Layer0.getInstance(graph);
+ for(int t : getObjects(subject, L0.InstanceOf)) {
+ Resource tr = getExternal(t);
+ if(tr != null)
+ if(graph.isInheritedFrom(tr, type)) return true;
+ }
+
+ return false;
+
+ }
+
+
+ public String formatResource(int r) throws DatabaseException {
+
+ String result = "" + r;
+ String uri = TransferableGraphUtils.getURI(tg, r);
+ if(!uri.isEmpty()) result = uri;
+
+ Value value = TransferableGraphUtils.findValue(tg, r);
+ if(value != null) result += " (value " + value.value + ")";
+
+ return result;
+
+ }
+
+ public String listStatements() throws DatabaseException {
+
+ StringBuilder b = new StringBuilder();
+ for(int i=0;i<tg.statements.length;i+=4) {
+ int subject = tg.statements[i];
+ int predicate = tg.statements[i+1];
+ int object = tg.statements[i+3];
+ b.append(formatResource(subject) + " " + formatResource(predicate) + " " + formatResource(object) + "\n");
+ }
+ return b.toString();
+
+ }
+
+ public ReadGraph getGraph() {
+ return graph;
+ }
+
+}
Code Review / simantics / platform.git / blobdiff