Merge pull request Sage-Bionetworks#48 from marcomarasca/PLFM-6595

PLFM-6595: Handle unexpected concreteType

Author: john-hill

pom.xml

@@ -4,7 +4,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>org.sagebionetworks</groupId>
 	<artifactId>schema-to-pojo</artifactId>
-	<version>0.6.8</version>
+	<version>0.6.9</version>
 	<packaging>pom</packaging>
 	<name>schema-to-pojo</name>
 	<description>Container for the rest of the sub-projects</description>

schema-to-pojo-core/pom.xml

@@ -5,7 +5,7 @@
 	<parent>
 		<artifactId>schema-to-pojo</artifactId>
 		<groupId>org.sagebionetworks</groupId>
-		<version>0.6.8</version>
+		<version>0.6.9</version>
 	</parent>
 	<artifactId>schema-to-pojo-core</artifactId>
 	<name>schema-to-pojo-core</name>

schema-to-pojo-gwt/pom.xml

@@ -4,7 +4,7 @@
 	<parent>
 		<artifactId>schema-to-pojo</artifactId>
 		<groupId>org.sagebionetworks</groupId>
-		<version>0.6.8</version>
+		<version>0.6.9</version>
 	</parent>
 	<artifactId>schema-to-pojo-gwt</artifactId>
 	<packaging>jar</packaging>

schema-to-pojo-integration-tests/pom.xml

@@ -5,7 +5,7 @@
 	<parent>
 		<artifactId>schema-to-pojo</artifactId>
 		<groupId>org.sagebionetworks</groupId>
-		<version>0.6.8</version>
+		<version>0.6.9</version>
 	</parent>
 	<artifactId>schema-to-pojo-integration-tests</artifactId>
 	<name>schema-to-pojo-integration-tests</name>

schema-to-pojo-lib/pom.xml

@@ -5,7 +5,7 @@
 	<parent>
 		<artifactId>schema-to-pojo</artifactId>
 		<groupId>org.sagebionetworks</groupId>
-		<version>0.6.8</version>
+		<version>0.6.9</version>
 	</parent>
 	<artifactId>schema-to-pojo-lib</artifactId>
 	<name>schema-to-pojo-lib</name>

schema-to-pojo-maven-plugin/pom.xml

@@ -4,7 +4,7 @@
 	<parent>
 		<artifactId>schema-to-pojo</artifactId>
 		<groupId>org.sagebionetworks</groupId>
-		<version>0.6.8</version>
+		<version>0.6.9</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>schema-to-pojo-maven-plugin</artifactId>

schema-to-pojo-org-json/pom.xml

@@ -5,7 +5,7 @@
 	<parent>
 		<artifactId>schema-to-pojo</artifactId>
 		<groupId>org.sagebionetworks</groupId>
-		<version>0.6.8</version>
+		<version>0.6.9</version>
 	</parent>
 	<artifactId>schema-to-pojo-org-json</artifactId>
 	<name>schema-to-pojo-org-json</name>

schema-to-pojo-org-json/src/main/java/org/sagebionetworks/schema/adapter/org/json/EntityFactory.java

@@ -4,7 +4,6 @@
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Iterator;
-import java.util.List;
 
 import org.json.JSONObject;
 import org.sagebionetworks.schema.ObjectSchema;
@@ -156,20 +155,25 @@ private static <T extends JSONEntity> T createEntityFromAdapter(Class<? extends
 		// Now create a new instance of the class
 		try {
 			T newInstance = null;
-			if(clazz.isInterface()){
+			if (clazz.isInterface()) {
 				String concreteType = extractConcreteType(adapter, clazz);
+				Class<T> newInstanceClass;
 				// Use the concrete type to instantiate the object.
 				try {
-					newInstance = (T) Class.forName(concreteType).newInstance();
+					newInstanceClass = (Class<T>) Class.forName(concreteType);
 				} catch (ClassNotFoundException e) {
-					throw new IllegalArgumentException(String.format("Unknown %s : '%s'",ObjectSchema.CONCRETE_TYPE, concreteType), e);
+					throw new IllegalArgumentException(String.format("Unknown %s : '%s'", ObjectSchema.CONCRETE_TYPE, concreteType), e);
 				}
-			}else{
+				if (!clazz.isAssignableFrom(newInstanceClass)) {
+					throw new IllegalArgumentException(String.format("Unexpected concreteType: \"%s\" is not of type \"%s\"", concreteType, clazz.getName()));
+				}
+				newInstance = newInstanceClass.newInstance();
+			} else {
 				newInstance = clazz.newInstance();
 			}
 			newInstance.initializeFromJSONObject(adapter);
 			return newInstance;
-		}  catch (IllegalArgumentException e) {
+		} catch (IllegalArgumentException e) {
 			throw e;
 		} catch (Exception e) {
 			throw new JSONObjectAdapterException(e);

schema-to-pojo-org-json/src/test/java/org/sagebionetworks/schema/adapter/org/json/EntityFactoryTest.java

@@ -140,6 +140,21 @@ public void testCreateEntityFromJSONStringWithMissingConcreteType() throws JSONO
 
 	}
 
+	@Test
+	public void testCreateEntityFromJSONStringWithUnexpectedConcreteType() throws JSONObjectAdapterException {
+
+		// A json string without concrete type,
+		String json = "{\"value\":\"some value\", \"concreteType\": \"java.lang.String\"}";
+
+		IllegalArgumentException ex = assertThrows(IllegalArgumentException.class, () -> {
+			// Call under test
+			EntityFactory.createEntityFromJSONString(json, SimpleInterface.class);
+		});
+
+		assertEquals("Unexpected concreteType: \"java.lang.String\" is not of type \"org.sagebionetworks.schema.adapter.org.json.SimpleInterface\"", ex.getMessage());
+
+	}
+	
 	@Test
 	public void testWriteAndReadJSONArrayString() throws JSONObjectAdapterException {
 		List<SimpleEntityStub> list = Arrays.asList(new SimpleEntityStub().withValue("1"), null,