Fix #67 - Correctly parse local IDs in IdDt even if they look like real IDs

hapi-fhir-base/src/main/java/ca/uhn/fhir/model/primitive/IdDt.java

@@ -283,7 +283,8 @@ public class IdDt implements IPrimitiveDatatype<String> {
 				b.append('/');
 				b.append(myUnqualifiedVersionId);
 			}
-			myValue = b.toString();
+			String value = b.toString();
+			myValue = value;
 		}
 		return myValue;
 	}
@@ -384,10 +385,17 @@ public class IdDt implements IPrimitiveDatatype<String> {
 		myValue = theValue;
 		myHaveComponentParts = false;
 		if (StringUtils.isBlank(theValue)) {
+			myBaseUrl = null;
 			myValue = null;
 			myUnqualifiedId = null;
 			myUnqualifiedVersionId = null;
 			myResourceType = null;
+		} else if (theValue.charAt(0)== '#') {
+			myValue = theValue;
+			myUnqualifiedId = theValue;
+			myUnqualifiedVersionId=null;
+			myResourceType = null;
+			myHaveComponentParts = true;
 		} else {
 			int vidIndex = theValue.indexOf("/_history/");
 			int idIndex;
@@ -452,13 +460,7 @@ public class IdDt implements IPrimitiveDatatype<String> {
 	}
 
 	public IdDt toVersionless() {
-		String value = getValue();
-		int i = value.indexOf(Constants.PARAM_HISTORY);
-		if (i > 1) {
-			return new IdDt(value.substring(0, i - 1));
-		} else {
-			return this;
-		}
+		return new IdDt(getBaseUrl(), getResourceType(), getIdPart(), null);
 	}
 
 	public IdDt withResourceType(String theResourceName) {

hapi-fhir-jpaserver-uhnfhirtest/.settings/org.eclipse.wst.common.component

@@ -14,6 +14,9 @@
         <dependent-module archiveName="hapi-fhir-structures-dstu-0.9-SNAPSHOT.jar" deploy-path="/WEB-INF/lib" handle="module:/resource/hapi-fhir-structures-dstu/hapi-fhir-structures-dstu">
             <dependency-type>uses</dependency-type>
         </dependent-module>
+        <dependent-module archiveName="hapi-fhir-structures-dev-0.9-SNAPSHOT.jar" deploy-path="/WEB-INF/lib" handle="module:/resource/hapi-fhir-structures-dev/hapi-fhir-structures-dev">
+            <dependency-type>uses</dependency-type>
+        </dependent-module>
         <dependent-module deploy-path="/" handle="module:/overlay/prj/hapi-fhir-testpage-overlay?includes=**/**&amp;excludes=META-INF/MANIFEST.MF">
             <dependency-type>consumes</dependency-type>
         </dependent-module>

hapi-fhir-structures-dstu/src/test/java/ca/uhn/fhir/model/primitive/IdDtTest.java

@@ -26,6 +26,43 @@ public class IdDtTest {
 		
 	}
 	
+	/**
+	 * See #67
+	 */
+	@Test
+	public void testComplicatedLocal() {
+		IdDt id = new IdDt("#Patient/cid:Patient-72/_history/1");
+		assertTrue(id.isLocal());
+		assertNull(id.getBaseUrl());
+		assertNull(id.getResourceType());
+		assertNull(id.getVersionIdPart());
+		assertEquals("#Patient/cid:Patient-72/_history/1", id.getIdPart());
+		
+		IdDt id2 = new IdDt("#Patient/cid:Patient-72/_history/1");
+		assertEquals(id, id2);
+		
+		id2 = id2.toUnqualified();
+		assertTrue(id2.isLocal());
+		assertNull(id2.getBaseUrl());
+		assertNull(id2.getResourceType());
+		assertNull(id2.getVersionIdPart());
+		assertEquals("#Patient/cid:Patient-72/_history/1", id2.getIdPart());
+
+		id2 = id2.toVersionless();
+		assertTrue(id2.isLocal());
+		assertNull(id2.getBaseUrl());
+		assertNull(id2.getResourceType());
+		assertNull(id2.getVersionIdPart());
+		assertEquals("#Patient/cid:Patient-72/_history/1", id2.getIdPart());
+
+		id2 = id2.toUnqualifiedVersionless();
+		assertTrue(id2.isLocal());
+		assertNull(id2.getBaseUrl());
+		assertNull(id2.getResourceType());
+		assertNull(id2.getVersionIdPart());
+		assertEquals("#Patient/cid:Patient-72/_history/1", id2.getIdPart());
+	}
+	
 	@Test
 	public void testDetermineBase() {
 
@@ -80,6 +117,15 @@ public class IdDtTest {
 
 	}
 
+	
+	@Test
+	public void testViewMethods() {
+		IdDt i = new IdDt("http://foo/fhir/Organization/123/_history/999");
+		assertEquals("Organization/123/_history/999", i.toUnqualified().getValue());
+		assertEquals("http://foo/fhir/Organization/123", i.toVersionless().getValue());
+		assertEquals("Organization/123", i.toUnqualifiedVersionless().getValue());
+	}
+
 	@Test
 	public void testParseValueWithVersion() {
 		Patient patient = new Patient();

src/changes/changes.xml

@@ -16,6 +16,13 @@
 				(e.g. because they don't have a no-argument constructor) in order to 
 				avoid failing later
 			</action>
+			<action type="fix" issue="67">
+				IdDt failed to recognize local identifiers containing fragments that look like 
+				real identifiers as being local identifiers even though they started with '#'.
+				For example, a local resource reference of "#aa/_history/aa" would be incorrectly
+				parsed as a non-local reference.
+				Thanks to Mohammad Jafari for reporting!
+			</action>
 		</release>
 		<release version="0.8" date="2014-Dec-17">
 			<action type="add">