Merge pull request #688 from CarthageKing/bugfix-issue659

Correctly serialize baseurl/FooResource references

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

@@ -305,11 +305,16 @@ public class IdDt extends UriDt implements /*IPrimitiveDatatype<String>, */IIdTy
 				b.append(myResourceType);
 			}
 
-			if (b.length() > 0) {
+			if (b.length() > 0 && isNotBlank(myUnqualifiedId)) {
 				b.append('/');
 			}
 
+			if (isNotBlank(myUnqualifiedId)) {
 				b.append(myUnqualifiedId);
+			} else if (isNotBlank(myUnqualifiedVersionId)) {
+				b.append('/');
+			}
+
 			if (isNotBlank(myUnqualifiedVersionId)) {
 				b.append('/');
 				b.append(Constants.PARAM_HISTORY);
@@ -526,8 +531,22 @@ public class IdDt extends UriDt implements /*IPrimitiveDatatype<String>, */IIdTy
 				int typeIndex = theValue.lastIndexOf('/', idIndex - 1);
 				if (typeIndex == -1) {
 					myResourceType = theValue.substring(0, idIndex);
+				} else {
+					if (typeIndex > 0 && '/' == theValue.charAt(typeIndex - 1)) {
+						typeIndex = theValue.indexOf('/', typeIndex + 1);
+					}
+					if (typeIndex >= idIndex) {
+						// e.g. http://example.org/foo
+						// 'foo' was the id but we're making that the resource type. Nullify the id part because we don't have an id.
+						// Also set null value to the super.setValue() and enable myHaveComponentParts so it forces getValue() to properly
+						// recreate the url
+						myResourceType = myUnqualifiedId;
+						myUnqualifiedId = null;
+						super.setValue(null);
+						myHaveComponentParts = true;
 					} else {
 						myResourceType = theValue.substring(typeIndex + 1, idIndex);
+					}
 
 					if (typeIndex > 4) {
 						myBaseUrl = theValue.substring(0, typeIndex);

hapi-fhir-jpaserver-base/src/main/java/ca/uhn/fhir/jpa/entity/ResourceLink.java

@@ -197,7 +197,15 @@ public class ResourceLink implements Serializable {
 	public void setTargetResourceUrl(IIdType theTargetResourceUrl) {
 		Validate.isTrue(theTargetResourceUrl.hasBaseUrl());
 		Validate.isTrue(theTargetResourceUrl.hasResourceType());
-		Validate.isTrue(theTargetResourceUrl.hasIdPart());
+
+		if (theTargetResourceUrl.hasIdPart()) {
+			// do nothing
+		} else {
+			// Must have set an url like http://example.org/something
+			// We treat 'something' as the resource type because of fix for #659. Prior to #659 fix, 'something' was
+			// treated as the id and 'example.org' was treated as the resource type
+			// TODO: log a warning?
+		}
 
 		myTargetResourceType = theTargetResourceUrl.getResourceType();
 		myTargetResourceUrl = theTargetResourceUrl.getValue();

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

@@ -84,6 +84,37 @@ public class IdDtTest {
 		assertEquals("foo/_history/2", id.withVersion("2").getValue());
 	}
 
+	@Test
+	public void testBaseUrlFoo1() {
+		IdDt id = new IdDt("http://my.org/foo");
+		assertEquals("http://my.org/foo", id.getValueAsString());
+		assertEquals(null, id.getIdPart());
+		assertEquals("foo", id.toUnqualified().getValueAsString());
+		assertEquals("foo", id.toUnqualifiedVersionless().getValueAsString());
+		assertEquals(null, id.getVersionIdPart());
+		assertEquals("foo", id.getResourceType());
+		assertEquals("http://my.org", id.getBaseUrl());
+
+		assertEquals("Patient", id.withResourceType("Patient").getValue());
+		assertEquals("http://foo/Patient", id.withServerBase("http://foo", "Patient").getValue());
+		assertEquals("http://my.org/foo//_history/2", id.withVersion("2").getValue());
+	}
+
+	@Test
+	public void testBaseUrlFoo2() {
+		IdDt id = new IdDt("http://my.org/a/b/c/foo");
+		assertEquals("http://my.org/a/b/c/foo", id.getValueAsString());
+		assertEquals("foo", id.getIdPart());
+		assertEquals("c/foo", id.toUnqualified().getValueAsString());
+		assertEquals("c/foo", id.toUnqualifiedVersionless().getValueAsString());
+		assertEquals(null, id.getVersionIdPart());
+		assertEquals("c", id.getResourceType());
+		assertEquals("http://my.org/a/b", id.getBaseUrl());
+
+		assertEquals("Patient/foo", id.withResourceType("Patient").getValue());
+		assertEquals("http://foo/Patient/foo", id.withServerBase("http://foo", "Patient").getValue());
+		assertEquals("http://my.org/a/b/c/foo/_history/2", id.withVersion("2").getValue());
+	}
 
 	@Test
 	public void testDetectIsIdPartValid() {

hapi-fhir-structures-dstu2.1/src/main/java/org/hl7/fhir/dstu2016may/model/IdType.java

@@ -358,11 +358,16 @@ public final class IdType extends UriType implements IPrimitiveType<String>, IId
         b.append(myResourceType);
       }
 
-      if (b.length() > 0) {
+      if (b.length() > 0 && isNotBlank(myUnqualifiedId)) {
         b.append('/');
       }
 
+      if (isNotBlank(myUnqualifiedId)) {
         b.append(myUnqualifiedId);
+      } else if (isNotBlank(myUnqualifiedVersionId)) {
+        b.append('/');
+      }
+
       if (isNotBlank(myUnqualifiedVersionId)) {
         b.append('/');
         b.append("_history");
@@ -553,8 +558,22 @@ public final class IdType extends UriType implements IPrimitiveType<String>, IId
         int typeIndex = theValue.lastIndexOf('/', idIndex - 1);
         if (typeIndex == -1) {
           myResourceType = theValue.substring(0, idIndex);
+        } else {
+          if (typeIndex > 0 && '/' == theValue.charAt(typeIndex - 1)) {
+            typeIndex = theValue.indexOf('/', typeIndex + 1);
+          }
+          if (typeIndex >= idIndex) {
+            // e.g. http://example.org/foo
+            // 'foo' was the id but we're making that the resource type. Nullify the id part because we don't have an id.
+            // Also set null value to the super.setValue() and enable myHaveComponentParts so it forces getValue() to properly
+            // recreate the url
+            myResourceType = myUnqualifiedId;
+            myUnqualifiedId = null;
+            super.setValue(null);
+            myHaveComponentParts = true;
           } else {
             myResourceType = theValue.substring(typeIndex + 1, idIndex);
+          }
 
           if (typeIndex > 4) {
             myBaseUrl = theValue.substring(0, typeIndex);

hapi-fhir-structures-dstu2.1/src/test/java/ca/uhn/fhir/model/IdTypeDstu2_1Test.java

@@ -92,6 +92,37 @@ public class IdTypeDstu2_1Test {
 		assertEquals("foo/_history/2", id.withVersion("2").getValue());
 	}
 
+	@Test
+	public void testBaseUrlFoo1() {
+		IdType id = new IdType("http://my.org/foo");
+		assertEquals("http://my.org/foo", id.getValueAsString());
+		assertEquals(null, id.getIdPart());
+		assertEquals("foo", id.toUnqualified().getValueAsString());
+		assertEquals("foo", id.toUnqualifiedVersionless().getValueAsString());
+		assertEquals(null, id.getVersionIdPart());
+		assertEquals("foo", id.getResourceType());
+		assertEquals("http://my.org", id.getBaseUrl());
+
+		assertEquals("Patient", id.withResourceType("Patient").getValue());
+		assertEquals("http://foo/Patient", id.withServerBase("http://foo", "Patient").getValue());
+		assertEquals("http://my.org/foo//_history/2", id.withVersion("2").getValue());
+	}
+
+	@Test
+	public void testBaseUrlFoo2() {
+		IdType id = new IdType("http://my.org/a/b/c/foo");
+		assertEquals("http://my.org/a/b/c/foo", id.getValueAsString());
+		assertEquals("foo", id.getIdPart());
+		assertEquals("c/foo", id.toUnqualified().getValueAsString());
+		assertEquals("c/foo", id.toUnqualifiedVersionless().getValueAsString());
+		assertEquals(null, id.getVersionIdPart());
+		assertEquals("c", id.getResourceType());
+		assertEquals("http://my.org/a/b", id.getBaseUrl());
+
+		assertEquals("Patient/foo", id.withResourceType("Patient").getValue());
+		assertEquals("http://foo/Patient/foo", id.withServerBase("http://foo", "Patient").getValue());
+		assertEquals("http://my.org/a/b/c/foo/_history/2", id.withVersion("2").getValue());
+	}
 
 	@Test
 	public void testDetectLocal() {

hapi-fhir-structures-dstu2.1/src/test/java/ca/uhn/fhir/parser/JsonParserDstu2_1Test.java

@@ -1876,6 +1876,26 @@ public class JsonParserDstu2_1Test {
 		Assert.assertThat(message, containsString("contained"));
 	}
 
+	@Test
+	public void testBaseUrlFooResourceCorrectlySerializedInExtensionValueReference() {
+		String refVal = "http://my.org/FooBar";
+
+		Patient fhirPat = new Patient();
+		fhirPat.addExtension().setUrl("x1").setValue(new Reference(refVal));
+
+		IParser parser = ourCtx.newJsonParser();
+
+		String output = parser.encodeResourceToString(fhirPat);
+		System.out.println("output: " + output);
+
+		// Deserialize then check that valueReference value is still correct
+		fhirPat = parser.parseResource(Patient.class, output);
+
+		List<Extension> extlst = fhirPat.getExtensionsByUrl("x1");
+		Assert.assertEquals(1, extlst.size());
+		Assert.assertEquals(refVal, ((Reference) extlst.get(0).getValue()).getReference());
+	}
+
 
 
 	@AfterClass

hapi-fhir-structures-dstu2.1/src/test/java/ca/uhn/fhir/parser/XmlParserDstu2_1Test.java

@@ -100,6 +100,7 @@ import org.hl7.fhir.instance.model.api.IBaseResource;
 import org.hl7.fhir.instance.model.api.IIdType;
 import org.junit.After;
 import org.junit.AfterClass;
+import org.junit.Assert;
 import org.junit.BeforeClass;
 import org.junit.Ignore;
 import org.junit.Test;
@@ -2738,6 +2739,26 @@ public class XmlParserDstu2_1Test {
 
 	}
 
+	@Test
+	public void testBaseUrlFooResourceCorrectlySerializedInExtensionValueReference() {
+		String refVal = "http://my.org/FooBar";
+
+		Patient fhirPat = new Patient();
+		fhirPat.addExtension().setUrl("x1").setValue(new Reference(refVal));
+
+		IParser parser = ourCtx.newXmlParser();
+
+		String output = parser.encodeResourceToString(fhirPat);
+		System.out.println("output: " + output);
+
+		// Deserialize then check that valueReference value is still correct
+		fhirPat = parser.parseResource(Patient.class, output);
+
+		List<Extension> extlst = fhirPat.getExtensionsByUrl("x1");
+		Assert.assertEquals(1, extlst.size());
+		Assert.assertEquals(refVal, ((Reference) extlst.get(0).getValue()).getReference());
+	}
+
 	@AfterClass
 	public static void afterClassClearContext() {
 		TestUtil.clearAllStaticFieldsForUnitTest();

hapi-fhir-structures-dstu2/src/test/java/ca/uhn/fhir/model/primitive/BaseResourceReferenceDtTest.java

@@ -142,7 +142,7 @@ public class BaseResourceReferenceDtTest {
 			new ResourceReferenceDt("http://foo/123123").loadResource(client);
 			fail();
 		} catch (DataFormatException e) {
-			assertEquals("Unknown resource name \"foo\" (this name is not known in FHIR version \"DSTU2\")", e.getMessage());
+			assertEquals("Unknown resource name \"123123\" (this name is not known in FHIR version \"DSTU2\")", e.getMessage());
 		}
 
 		try {

hapi-fhir-structures-dstu2/src/test/java/ca/uhn/fhir/parser/JsonParserDstu2Test.java

@@ -2043,4 +2043,24 @@ public class JsonParserDstu2Test {
 		assertEquals("myName", ((StringDt) newPatient.getUndeclaredExtensionsByUrl("http://www.example.com/petname").get(0).getValue()).getValue());
 
 	}  
+
+	@Test
+	public void testBaseUrlFooResourceCorrectlySerializedInExtensionValueReference() {
+		String refVal = "http://my.org/FooBar";
+
+		Patient fhirPat = new Patient();
+		fhirPat.addUndeclaredExtension(false, "x1").setValue(new ResourceReferenceDt(refVal));
+
+		IParser parser = ourCtx.newJsonParser();
+
+		String output = parser.encodeResourceToString(fhirPat);
+		System.out.println("output: " + output);
+
+		// Deserialize then check that valueReference value is still correct
+		fhirPat = parser.parseResource(Patient.class, output);
+
+		List<ExtensionDt> extlst = fhirPat.getUndeclaredExtensionsByUrl("x1");
+		Assert.assertEquals(1, extlst.size());
+		Assert.assertEquals(refVal, ((ResourceReferenceDt) extlst.get(0).getValue()).getReference().getValue());
+	}
 }

hapi-fhir-structures-dstu2/src/test/java/ca/uhn/fhir/parser/XmlParserDstu2Test.java

@@ -33,6 +33,7 @@ import org.hamcrest.text.StringContainsInOrder;
 import org.hl7.fhir.instance.model.api.IBaseResource;
 import org.hl7.fhir.instance.model.api.IIdType;
 import org.junit.AfterClass;
+import org.junit.Assert;
 import org.junit.Before;
 import org.junit.BeforeClass;
 import org.junit.Test;
@@ -2854,6 +2855,26 @@ public class XmlParserDstu2Test {
 
 	}
 
+	@Test
+	public void testBaseUrlFooResourceCorrectlySerializedInExtensionValueReference() {
+		String refVal = "http://my.org/FooBar";
+
+		Patient fhirPat = new Patient();
+		fhirPat.addUndeclaredExtension(false, "x1").setValue(new ResourceReferenceDt(refVal));
+
+		IParser parser = ourCtx.newXmlParser();
+
+		String output = parser.encodeResourceToString(fhirPat);
+		System.out.println("output: " + output);
+
+		// Deserialize then check that valueReference value is still correct
+		fhirPat = parser.parseResource(Patient.class, output);
+
+		List<ExtensionDt> extlst = fhirPat.getUndeclaredExtensionsByUrl("x1");
+		Assert.assertEquals(1, extlst.size());
+		Assert.assertEquals(refVal, ((ResourceReferenceDt) extlst.get(0).getValue()).getReference().getValue());
+	}
+  
 	@AfterClass
 	public static void afterClassClearContext() {
 		TestUtil.clearAllStaticFieldsForUnitTest();

hapi-fhir-structures-dstu3/src/main/java/org/hl7/fhir/dstu3/model/IdType.java

@@ -357,11 +357,16 @@ public final class IdType extends UriType implements IPrimitiveType<String>, IId
         b.append(myResourceType);
       }
 
-      if (b.length() > 0) {
+      if (b.length() > 0 && isNotBlank(myUnqualifiedId)) {
         b.append('/');
       }
 
+      if (isNotBlank(myUnqualifiedId)) {
         b.append(myUnqualifiedId);
+      } else if (isNotBlank(myUnqualifiedVersionId)) {
+        b.append('/');
+      }
+
       if (isNotBlank(myUnqualifiedVersionId)) {
         b.append('/');
         b.append("_history");
@@ -552,8 +557,22 @@ public final class IdType extends UriType implements IPrimitiveType<String>, IId
         int typeIndex = theValue.lastIndexOf('/', idIndex - 1);
         if (typeIndex == -1) {
           myResourceType = theValue.substring(0, idIndex);
+        } else {
+          if (typeIndex > 0 && '/' == theValue.charAt(typeIndex - 1)) {
+            typeIndex = theValue.indexOf('/', typeIndex + 1);
+          }
+          if (typeIndex >= idIndex) {
+            // e.g. http://example.org/foo
+            // 'foo' was the id but we're making that the resource type. Nullify the id part because we don't have an id.
+            // Also set null value to the super.setValue() and enable myHaveComponentParts so it forces getValue() to properly
+            // recreate the url
+            myResourceType = myUnqualifiedId;
+            myUnqualifiedId = null;
+            super.setValue(null);
+            myHaveComponentParts = true;
           } else {
             myResourceType = theValue.substring(typeIndex + 1, idIndex);
+          }
 
           if (typeIndex > 4) {
             myBaseUrl = theValue.substring(0, typeIndex);

hapi-fhir-structures-dstu3/src/test/java/ca/uhn/fhir/model/IdTypeDstu3Test.java

@@ -92,6 +92,38 @@ public class IdTypeDstu3Test {
 		assertEquals("foo/_history/2", id.withVersion("2").getValue());
 	}
 
+	@Test
+	public void testBaseUrlFoo1() {
+		IdType id = new IdType("http://my.org/foo");
+		assertEquals("http://my.org/foo", id.getValueAsString());
+		assertEquals(null, id.getIdPart());
+		assertEquals("foo", id.toUnqualified().getValueAsString());
+		assertEquals("foo", id.toUnqualifiedVersionless().getValueAsString());
+		assertEquals(null, id.getVersionIdPart());
+		assertEquals("foo", id.getResourceType());
+		assertEquals("http://my.org", id.getBaseUrl());
+
+		assertEquals("Patient", id.withResourceType("Patient").getValue());
+		assertEquals("http://foo/Patient", id.withServerBase("http://foo", "Patient").getValue());
+		assertEquals("http://my.org/foo//_history/2", id.withVersion("2").getValue());
+	}
+
+	@Test
+	public void testBaseUrlFoo2() {
+		IdType id = new IdType("http://my.org/a/b/c/foo");
+		assertEquals("http://my.org/a/b/c/foo", id.getValueAsString());
+		assertEquals("foo", id.getIdPart());
+		assertEquals("c/foo", id.toUnqualified().getValueAsString());
+		assertEquals("c/foo", id.toUnqualifiedVersionless().getValueAsString());
+		assertEquals(null, id.getVersionIdPart());
+		assertEquals("c", id.getResourceType());
+		assertEquals("http://my.org/a/b", id.getBaseUrl());
+
+		assertEquals("Patient/foo", id.withResourceType("Patient").getValue());
+		assertEquals("http://foo/Patient/foo", id.withServerBase("http://foo", "Patient").getValue());
+		assertEquals("http://my.org/a/b/c/foo/_history/2", id.withVersion("2").getValue());
+	}
+
 	@Test
 	public void testDetectLocal() {
 		IdType id;

hapi-fhir-structures-dstu3/src/test/java/ca/uhn/fhir/parser/JsonParserDstu3Test.java

@@ -2430,6 +2430,26 @@ public class JsonParserDstu3Test {
 		assertTrue(result.isSuccessful());
 	}
 
+	@Test
+	public void testBaseUrlFooResourceCorrectlySerializedInExtensionValueReference() {
+		String refVal = "http://my.org/FooBar";
+
+		Patient fhirPat = new Patient();
+		fhirPat.addExtension().setUrl("x1").setValue(new Reference(refVal));
+
+		IParser parser = ourCtx.newJsonParser();
+
+		String output = parser.encodeResourceToString(fhirPat);
+		System.out.println("output: " + output);
+
+		// Deserialize then check that valueReference value is still correct
+		fhirPat = parser.parseResource(Patient.class, output);
+
+		List<Extension> extlst = fhirPat.getExtensionsByUrl("x1");
+		Assert.assertEquals(1, extlst.size());
+		Assert.assertEquals(refVal, ((Reference) extlst.get(0).getValue()).getReference());
+	}
+
 	@AfterClass
 	public static void afterClassClearContext() {
 		TestUtil.clearAllStaticFieldsForUnitTest();

hapi-fhir-structures-dstu3/src/test/java/ca/uhn/fhir/parser/XmlParserDstu3Test.java

@@ -3323,6 +3323,26 @@ public class XmlParserDstu3Test {
 
 	}
 
+	@Test
+	public void testBaseUrlFooResourceCorrectlySerializedInExtensionValueReference() {
+		String refVal = "http://my.org/FooBar";
+
+		Patient fhirPat = new Patient();
+		fhirPat.addExtension().setUrl("x1").setValue(new Reference(refVal));
+
+		IParser parser = ourCtx.newXmlParser();
+
+		String output = parser.encodeResourceToString(fhirPat);
+		System.out.println("output: " + output);
+
+		// Deserialize then check that valueReference value is still correct
+		fhirPat = parser.parseResource(Patient.class, output);
+
+		List<Extension> extlst = fhirPat.getExtensionsByUrl("x1");
+		Assert.assertEquals(1, extlst.size());
+		Assert.assertEquals(refVal, ((Reference) extlst.get(0).getValue()).getReference());
+	}
+
 	@AfterClass
 	public static void afterClassClearContext() {
 		TestUtil.clearAllStaticFieldsForUnitTest();

hapi-fhir-structures-hl7org-dstu2/src/main/java/org/hl7/fhir/instance/model/IdType.java

@@ -384,11 +384,16 @@ public final class IdType extends UriType implements IPrimitiveType<String>, IId
         b.append(myResourceType);
       }
 
-      if (b.length() > 0) {
+      if (b.length() > 0 && isNotBlank(myUnqualifiedId)) {
         b.append('/');
       }
 
+      if (isNotBlank(myUnqualifiedId)) {
         b.append(myUnqualifiedId);
+      } else if (isNotBlank(myUnqualifiedVersionId)) {
+        b.append('/');
+      }
+
       if (isNotBlank(myUnqualifiedVersionId)) {
         b.append('/');
         b.append("_history");
@@ -570,8 +575,22 @@ public final class IdType extends UriType implements IPrimitiveType<String>, IId
         int typeIndex = theValue.lastIndexOf('/', idIndex - 1);
         if (typeIndex == -1) {
           myResourceType = theValue.substring(0, idIndex);
+        } else {
+          if (typeIndex > 0 && '/' == theValue.charAt(typeIndex - 1)) {
+            typeIndex = theValue.indexOf('/', typeIndex + 1);
+          }
+          if (typeIndex >= idIndex) {
+            // e.g. http://example.org/foo
+            // 'foo' was the id but we're making that the resource type. Nullify the id part because we don't have an id.
+            // Also set null value to the super.setValue() and enable myHaveComponentParts so it forces getValue() to properly
+            // recreate the url
+            myResourceType = myUnqualifiedId;
+            myUnqualifiedId = null;
+            super.setValue(null);
+            myHaveComponentParts = true;
           } else {
             myResourceType = theValue.substring(typeIndex + 1, idIndex);
+          }
 
           if (typeIndex > 4) {
             myBaseUrl = theValue.substring(0, typeIndex);

hapi-fhir-structures-hl7org-dstu2/src/test/java/ca/uhn/fhir/model/IdTypeTest.java

@@ -84,6 +84,54 @@ public class IdTypeTest {
 
 	}
 
+	@Test
+	public void testNormal() {
+		IdType id = new IdType("foo");
+		assertEquals("foo", id.getValueAsString());
+		assertEquals("foo", id.getIdPart());
+		assertEquals("foo", id.toUnqualified().getValueAsString());
+		assertEquals("foo", id.toUnqualifiedVersionless().getValueAsString());
+		assertEquals(null, id.getVersionIdPart());
+		assertEquals(null, id.getResourceType());
+		assertEquals(null, id.getBaseUrl());
+
+		assertEquals("Patient/foo", id.withResourceType("Patient").getValue());
+		assertEquals("http://foo/Patient/foo", id.withServerBase("http://foo", "Patient").getValue());
+		assertEquals("foo/_history/2", id.withVersion("2").getValue());
+	}
+
+	@Test
+	public void testBaseUrlFoo1() {
+		IdType id = new IdType("http://my.org/foo");
+		assertEquals("http://my.org/foo", id.getValueAsString());
+		assertEquals(null, id.getIdPart());
+		assertEquals("foo", id.toUnqualified().getValueAsString());
+		assertEquals("foo", id.toUnqualifiedVersionless().getValueAsString());
+		assertEquals(null, id.getVersionIdPart());
+		assertEquals("foo", id.getResourceType());
+		assertEquals("http://my.org", id.getBaseUrl());
+
+		assertEquals("Patient", id.withResourceType("Patient").getValue());
+		assertEquals("http://foo/Patient", id.withServerBase("http://foo", "Patient").getValue());
+		assertEquals("http://my.org/foo//_history/2", id.withVersion("2").getValue());
+	}
+
+	@Test
+	public void testBaseUrlFoo2() {
+		IdType id = new IdType("http://my.org/a/b/c/foo");
+		assertEquals("http://my.org/a/b/c/foo", id.getValueAsString());
+		assertEquals("foo", id.getIdPart());
+		assertEquals("c/foo", id.toUnqualified().getValueAsString());
+		assertEquals("c/foo", id.toUnqualifiedVersionless().getValueAsString());
+		assertEquals(null, id.getVersionIdPart());
+		assertEquals("c", id.getResourceType());
+		assertEquals("http://my.org/a/b", id.getBaseUrl());
+
+		assertEquals("Patient/foo", id.withResourceType("Patient").getValue());
+		assertEquals("http://foo/Patient/foo", id.withServerBase("http://foo", "Patient").getValue());
+		assertEquals("http://my.org/a/b/c/foo/_history/2", id.withVersion("2").getValue());
+	}
+
 	@Test
 	public void testDetermineBase() {
 

hapi-fhir-structures-hl7org-dstu2/src/test/java/ca/uhn/fhir/parser/JsonParserHl7OrgDstu2Test.java

@@ -63,6 +63,7 @@ import org.hl7.fhir.instance.model.api.IPrimitiveType;
 import org.hl7.fhir.utilities.xhtml.XhtmlNode;
 import org.junit.After;
 import org.junit.AfterClass;
+import org.junit.Assert;
 import org.junit.Ignore;
 import org.junit.Test;
 import org.xml.sax.SAXException;
@@ -1383,6 +1384,26 @@ public class JsonParserHl7OrgDstu2Test {
 
   }
 
+	@Test
+	public void testBaseUrlFooResourceCorrectlySerializedInExtensionValueReference() {
+		String refVal = "http://my.org/FooBar";
+
+		Patient fhirPat = new Patient();
+		fhirPat.addExtension().setUrl("x1").setValue(new Reference(refVal));
+
+		IParser parser = ourCtx.newJsonParser();
+
+		String output = parser.encodeResourceToString(fhirPat);
+		System.out.println("output: " + output);
+
+		// Deserialize then check that valueReference value is still correct
+		fhirPat = parser.parseResource(Patient.class, output);
+
+		List<Extension> extlst = fhirPat.getExtension();
+		Assert.assertEquals(1, extlst.size());
+		Assert.assertEquals(refVal, ((Reference) extlst.get(0).getValue()).getReference());
+	}
+
   @ResourceDef(name = "Patient")
   public static class MyPatientWithOneDeclaredAddressExtension extends Patient {
 

hapi-fhir-structures-hl7org-dstu2/src/test/java/ca/uhn/fhir/parser/XmlParserHl7OrgDstu2Test.java

@@ -65,6 +65,7 @@ import org.hl7.fhir.instance.model.api.IIdType;
 import org.hl7.fhir.instance.model.api.INarrative;
 import org.hl7.fhir.instance.model.api.IPrimitiveType;
 import org.junit.After;
+import org.junit.Assert;
 import org.junit.BeforeClass;
 import org.junit.Ignore;
 import org.junit.Test;
@@ -1790,6 +1791,26 @@ public class XmlParserHl7OrgDstu2Test {
 
   }
 
+	@Test
+	public void testBaseUrlFooResourceCorrectlySerializedInExtensionValueReference() {
+		String refVal = "http://my.org/FooBar";
+
+		Patient fhirPat = new Patient();
+		fhirPat.addExtension().setUrl("x1").setValue(new Reference(refVal));
+
+		IParser parser = ourCtx.newXmlParser();
+
+		String output = parser.encodeResourceToString(fhirPat);
+		System.out.println("output: " + output);
+
+		// Deserialize then check that valueReference value is still correct
+		fhirPat = parser.parseResource(Patient.class, output);
+
+		List<Extension> extlst = fhirPat.getExtension();
+		Assert.assertEquals(1, extlst.size());
+		Assert.assertEquals(refVal, ((Reference) extlst.get(0).getValue()).getReference());
+	}
+
   @BeforeClass
   public static void beforeClass() {
     XMLUnit.setIgnoreAttributeOrder(true);