General improvements

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@766345 13f79535-47bb-0310-9956-ffa450edef68

3 files changed, 55 insertions, 30 deletions

diff --git a/branches/sca-java-1.x/modules/binding-erlang-runtime/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/ErlangInvoker.java b/branches/sca-java-1.x/modules/binding-erlang-runtime/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/ErlangInvoker.java
index 2fe9ae38b9..a2cf71a053 100644
--- a/branches/sca-java-1.x/modules/binding-erlang-runtime/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/ErlangInvoker.java
+++ b/branches/sca-java-1.x/modules/binding-erlang-runtime/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/ErlangInvoker.java
@@ -62,6 +62,7 @@ public class ErlangInvoker implements Invoker {
 		} else {

 			// NOTE: don't throw exception if not declared

 			// TODO: externalize message?

+			msg.setBody(null);

 			logger

 					.log(Level.WARNING, "Problem while sending/receiving data",

 							e);

@@ -82,7 +83,11 @@ public class ErlangInvoker implements Invoker {
 				node.setCookie(binding.getCookie());

 			}

 			tmpMbox = node.createMbox();

-			Object[] args = msg.getBody();

+			// obtain args, make sure they aren't null

+			// NOTE: sending message with no content (but only with senders PID)

+			// is possible

+			Object[] args = (Object[]) (msg.getBody() != null ? msg.getBody()

+					: new Object[0]);

 			Method jmethod = ((JavaOperation) msg.getOperation())

 					.getJavaMethod();

 			// create and send msg with self pid in the beginning

diff --git a/branches/sca-java-1.x/modules/binding-erlang-runtime/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/ServiceExecutor.java b/branches/sca-java-1.x/modules/binding-erlang-runtime/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/ServiceExecutor.java
index 26b772f5e3..9e292fe3bb 100644
--- a/branches/sca-java-1.x/modules/binding-erlang-runtime/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/ServiceExecutor.java
+++ b/branches/sca-java-1.x/modules/binding-erlang-runtime/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/ServiceExecutor.java
@@ -152,10 +152,8 @@ public class ServiceExecutor implements Runnable {
 								&& operation.getOutputType().getPhysical()
 										.isArray()) {
 							// output type is array
-							Annotation[][] outNotes = new Annotation[][] { jmethod
-									.getAnnotations() };
-							response = TypeHelpersProxy.toErlangAsList(result,
-									outNotes);
+							response = TypeHelpersProxy.toErlangAsResultList(
+									result, jmethod.getAnnotations());
 						} else if (operation.getOutputType() == null) {
 							// output type is void, create empty reply
 							Object[] arrArg = new Object[] {};
@@ -248,8 +246,7 @@ public class ServiceExecutor implements Runnable {
 				msgNoSender = msg.getMsg();
 			}
 		} catch (Exception e) {
-			// TODO: check when this exception can occur
-			e.printStackTrace();
+			logger.log(Level.WARNING, "Unexpected error", e);
 		}
 
 		if (operations == null) {
@@ -294,10 +291,8 @@ public class ServiceExecutor implements Runnable {
 							&& matchedOperation.getOutputType().getPhysical()
 									.isArray()) {
 						// result type is array
-						Annotation[][] outNotes = new Annotation[][] { jmethod
-								.getAnnotations() };
-						response = TypeHelpersProxy.toErlangAsList(result,
-								outNotes);
+						response = TypeHelpersProxy.toErlangAsResultList(
+								result, jmethod.getAnnotations());
 					} else if (matchedOperation.getOutputType() != null) {
 						// result type is not array and not void
 						response = TypeHelpersProxy.toErlang(result, jmethod
@@ -330,13 +325,10 @@ public class ServiceExecutor implements Runnable {
 							e1.printStackTrace();
 						}
 					} else {
-						// unknown/unhandled error
-						// TODO: decide what to do with this exception
-						e.printStackTrace();
+						logger.log(Level.WARNING, "Unexpected error", e);
 					}
 				} catch (Exception e) {
-					// FIXME: log this problem? use linking feature? send error?
-					e.printStackTrace();
+					logger.log(Level.WARNING, "Unexpected error", e);
 				}
 			} else {
 				// TODO: externalize message?
diff --git a/branches/sca-java-1.x/modules/binding-erlang-runtime/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/types/TypeHelpersProxy.java b/branches/sca-java-1.x/modules/binding-erlang-runtime/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/types/TypeHelpersProxy.java
index 380abb852b..2ab29490e3 100644
--- a/branches/sca-java-1.x/modules/binding-erlang-runtime/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/types/TypeHelpersProxy.java
+++ b/branches/sca-java-1.x/modules/binding-erlang-runtime/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/types/TypeHelpersProxy.java
@@ -72,13 +72,23 @@ public class TypeHelpersProxy {
 		for (int i = 0; i < notes.length; i++) {

 			typeHelper = primitiveTypes.get(notes[i].annotationType());

 			if (typeHelper != null) {

-				// annotation found, check if it points to array

-				// FIXME: check if annotation points to proper type

-				// ie. ErlangAtom -> String. If not, then log? exception?

-				if (forClass.isArray()) {

-					typeHelper = new AnnotatedListTypeHelper(notes);

+				// get type which is annotated, reduce array if needed

+				Class<?> annotatedType = forClass;

+				while (annotatedType.isArray()) {

+					annotatedType = annotatedType.getComponentType();

+				}

+				if (notes[i].annotationType().equals(ErlangAtom.class)

+						&& !annotatedType.equals(String.class)) {

+					// NOTE: @ErlangAtom atom will be ignored if not annotates

+					// string

+					typeHelper = null;

+				} else {

+					// check if annotation points to array

+					if (forClass.isArray()) {

+						typeHelper = new AnnotatedListTypeHelper(notes);

+					}

+					break;

 				}

-				break;

 			}

 		}

 		// check for standard types

@@ -145,24 +155,42 @@ public class TypeHelpersProxy {
 	 * Creates Erlang list basing on unknown Java arrays

 	 * 

 	 * @param array

+	 * @param notes

 	 * @return

 	 */

 	public static OtpErlangList toErlangAsList(Object array,

 			Annotation[][] notes) {

+		return toErlangAsList(array, notes, false);

+	}

+

+	/**

+	 * Creates Erlang list of result elements

+	 * 

+	 * @param array

+	 * @param notes

+	 * @return

+	 */

+	public static OtpErlangList toErlangAsResultList(Object array,

+			Annotation[] notes) {

+		return toErlangAsList(array, new Annotation[][] { notes }, true);

+	}

+

+	/**

+	 * 

+	 * @param array

+	 * @param notes

+	 * @param isArray

+	 * @return

+	 */

+	private static OtpErlangList toErlangAsList(Object array,

+			Annotation[][] notes, boolean isArray) {

 		OtpErlangList result = null;

 		if (array != null) {

 			List<OtpErlangObject> attrsList = new ArrayList<OtpErlangObject>();

 			int i = 0;

 			while (true) {

 				try {

-					// FIXME: if notes.length == 1 then its used to annotate

-					// array. Clean up.

-					Annotation[] currNotes = null;

-					if (notes.length == 1) {

-						currNotes = notes[0];

-					} else {

-						currNotes = notes[i];

-					}

+					Annotation[] currNotes = isArray ? notes[0] : notes[i];

 					TypeHelper helper = getTypeHelper(Array.get(array, i)

 							.getClass(), currNotes);

 					attrsList.add(helper.toErlang(Array.get(array, i)));