Implemented prefix filter,

owlsim-core/src/main/java/org/monarchinitiative/owlsim/kb/filter/FilterEngine.java

@@ -95,14 +95,22 @@ else if (filter instanceof TypeFilter) {
             int ix = knowledgeBase.getClassIndex(tf.getTypeId());
             return typesBM.getPositions().contains(ix) ^ tf.isNegated();
 		}
-		else if (filter instanceof IdFilter) {
-			IdFilter idf = (IdFilter)filter;
-			if (idf.getIds().contains(id)) {
-				return true;
-			} else {
-				return false;
-			}
-		}
+        else if (filter instanceof IdFilter) {
+            IdFilter idf = (IdFilter)filter;
+            if (idf.getIds().contains(id)) {
+                return true;
+            } else {
+                return false;
+            }
+        }
+        else if (filter instanceof IdPrefixFilter) {
+            IdPrefixFilter idf = (IdPrefixFilter)filter;
+            if (id.startsWith(idf.getPrefix())) {
+                return true;
+            } else {
+                return false;
+            }
+        }
         else if (filter instanceof AnonIndividualFilter) {
             return false;
         }

owlsim-core/src/main/java/org/monarchinitiative/owlsim/kb/filter/IdPrefixFilter.java

@@ -0,0 +1,33 @@
+package org.monarchinitiative.owlsim.kb.filter;
+
+
+/**
+ * A filter that picks out individuals that with a particular prefix.
+ * 
+ * If URIs are already mapped to CURIEs, use the prefix plus ':'
+ * 
+ * If URIs are not mapped, use the full URI prefix
+ * 
+ * @author cjm
+ *
+ */
+public class IdPrefixFilter implements Filter  {
+
+	private String prefix;
+	
+
+	public IdPrefixFilter(String prefix) {
+		super();
+		this.prefix = prefix;
+	}
+	public static IdPrefixFilter create(String prefix) {
+		return new IdPrefixFilter(prefix);
+	}
+	
+	public String getPrefix() {
+		return prefix;
+	}
+	
+	
+
+}

owlsim-core/src/test/java/org/monarchinitiative/owlsim/kb/filter/FilterEngineTest.java

@@ -50,6 +50,9 @@ public void testFilterEngine() throws OWLOntologyCreationException, URISyntaxExc
         //System.out.println(tf6);
         //testFilter(tf6);
  
+        IdPrefixFilter pf = IdPrefixFilter.create("http://x.org/ia");
+        testFilter(pf, "http://x.org/ia", "http://x.org/iabc");
+
 	}
 
 }