X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.document.linking.ui%2Fsrc%2Forg%2Fsimantics%2Fdocument%2Flinking%2Fge%2FObjectChildRule.java;fp=bundles%2Forg.simantics.document.linking.ui%2Fsrc%2Forg%2Fsimantics%2Fdocument%2Flinking%2Fge%2FObjectChildRule.java;h=76e3fe1cf2c0e4ba44b6420bb463919527866612;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.document.linking.ui/src/org/simantics/document/linking/ge/ObjectChildRule.java b/bundles/org.simantics.document.linking.ui/src/org/simantics/document/linking/ge/ObjectChildRule.java
new file mode 100644
index 000000000..76e3fe1cf
--- /dev/null
+++ b/bundles/org.simantics.document.linking.ui/src/org/simantics/document/linking/ge/ObjectChildRule.java
@@ -0,0 +1,110 @@
+package org.simantics.document.linking.ge;
+
+import java.util.ArrayList;
+import java.util.Collection;
+
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.layer0.variable.StandardGraphChildVariable;
+import org.simantics.db.layer0.variable.Variable;
+import org.simantics.document.linking.ontology.DocumentLink;
+import org.simantics.document.linking.utils.SourceLinkUtil;
+
+/**
+ * A rule for browsing document links of an object. Properties are not included.
+ * 
+ * @author Marko Luukkainen <marko.luukkainen@vtt.fi>
+ *
+ */
+public class ObjectChildRule implements org.simantics.browsing.ui.model.children.ChildRule{
+	
+	private boolean showOnlyCheckable = false;
+	
+	@Override
+	public boolean isCompatible(Class<?> contentType) {
+		return contentType.equals(Resource.class) || contentType.equals(Variable.class);
+	}
+	
+	public void setShowOnlyCheckable(boolean showOnlyCheckable) {
+		this.showOnlyCheckable = showOnlyCheckable;
+	}
+	
+	@Override
+	public Collection<?> getChildren(ReadGraph graph, Object obj)
+			throws DatabaseException {
+
+		ArrayList<Variable> children = new ArrayList<Variable>();
+		
+
+		Resource resource = null;
+		Variable variable = null;
+		if (obj instanceof Resource) {
+			resource = (Resource)obj;
+			try {
+				variable = graph.adapt(resource, Variable.class);
+			} catch (Throwable t) {
+				return children;
+			}
+			children.add(new StandardGraphChildVariable(variable, null, resource));
+			return children;
+		} else {
+			variable = (Variable)obj;
+			resource = variable.getPossibleRepresents(graph);
+		}
+		
+	
+		DocumentLink sl = DocumentLink.getInstance(graph);
+		if (graph.isInstanceOf(resource, sl.Source))
+			return children;
+		
+		
+		//find sources declared on parentResource using consernsRelation
+		Variable parentVariable = variable.getParent(graph);
+		Resource parentRes = null;
+		Resource relation = null;
+		if (parentVariable != null) {
+			parentRes = parentVariable.getPossibleRepresents(graph);
+			relation = variable.getPossiblePredicateResource(graph);
+		}
+		
+		if (parentRes != null && relation != null) {
+			Collection<Resource> sources = graph.getObjects(parentRes, sl.hasSource);
+			for (Resource source : sources) {
+				Resource rel = graph.getPossibleObject(source, sl.consernsRelation);
+				if (rel != null && rel.equals(relation)) {
+					if (showOnlyCheckable && 
+						(SourceLinkUtil.isValidSource(graph, source) &&
+						 SourceLinkUtil.isUpToDateSource(graph, source)))
+						continue;
+					children.add(new StandardGraphChildVariable(variable, null, source));
+				}
+			}
+		}
+		//find sources declared on this resource, ie. sources that do not have consernsRelation.
+		Collection<Resource> sources = graph.getObjects(resource, sl.hasSource);
+		for (Resource source : sources) {
+			Resource rel = graph.getPossibleObject(source, sl.consernsRelation);
+			if (rel == null) {
+				if (showOnlyCheckable && 
+				   (SourceLinkUtil.isValidSource(graph, source) &&
+				    SourceLinkUtil.isUpToDateSource(graph, source)))
+					continue;
+				children.add(new StandardGraphChildVariable(variable, null, source));
+			}
+		}
+		while (children.remove(variable)) {
+			
+		}
+		
+
+		return children;
+	}
+	
+	@Override
+	public Collection<?> getParents(ReadGraph graph, Object child)
+			throws DatabaseException {
+		return new ArrayList<Resource>();
+	}
+
+}