Add warning when XPath expression for property doesn't return anything

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@823549 13f79535-47bb-0310-9956-ffa450edef68

2 files changed, 10 insertions, 1 deletions

diff --git a/java/sca/modules/assembly/src/main/resources/org/apache/tuscany/sca/assembly/builder/assembly-validation-messages.properties b/java/sca/modules/assembly/src/main/resources/org/apache/tuscany/sca/assembly/builder/assembly-validation-messages.properties
index c8ad3d9201..80bf4955f0 100644
--- a/java/sca/modules/assembly/src/main/resources/org/apache/tuscany/sca/assembly/builder/assembly-validation-messages.properties
+++ b/java/sca/modules/assembly/src/main/resources/org/apache/tuscany/sca/assembly/builder/assembly-validation-messages.properties
@@ -69,4 +69,5 @@ PropertySourceXPathInvalid = The property file {0} for property {1} in component
 PolicyRelatedException = Policy Related Exception occured due to : {0}
 IntentNotFound = Intent {0} is not defined in SCA definitions
 PolicySetNotFound = PolicySet {0} is not defined in SCA definitions
-MutuallyExclusiveIntents = Intent {0} and {1} are mutually exclusive [POL40009]
\ No newline at end of file
+MutuallyExclusiveIntents = [POL40009] Intent {0} and {1} are mutually exclusive 
+PropertyXpathExpressionReturnedNull = The property XPath expression for component {0} property {1} expression {2} did not match anything in the source property
\ No newline at end of file
diff --git a/java/sca/modules/builder/src/main/java/org/apache/tuscany/sca/builder/impl/ComponentBuilderImpl.java b/java/sca/modules/builder/src/main/java/org/apache/tuscany/sca/builder/impl/ComponentBuilderImpl.java
index f1048540ba..8ba5e98f68 100644
--- a/java/sca/modules/builder/src/main/java/org/apache/tuscany/sca/builder/impl/ComponentBuilderImpl.java
+++ b/java/sca/modules/builder/src/main/java/org/apache/tuscany/sca/builder/impl/ComponentBuilderImpl.java
@@ -65,6 +65,7 @@ import org.apache.tuscany.sca.monitor.MonitorFactory;
 import org.apache.tuscany.sca.policy.ExtensionType;
 import org.apache.tuscany.sca.policy.PolicySubject;
 import org.w3c.dom.Document;
+import org.w3c.dom.DocumentFragment;
 import org.w3c.dom.Element;
 import org.w3c.dom.Node;
 import org.xml.sax.InputSource;
@@ -644,6 +645,13 @@ public class ComponentBuilderImpl {
 
                     if (node != null) {
                         componentProperty.setValue(node);
+                    } else {
+                        Monitor.warning(monitor,
+                                        this,
+                                        Messages.ASSEMBLY_VALIDATION,
+                                        "PropertyXpathExpressionReturnedNull",
+                                        component.getName(),
+                                        componentProperty.getName());
                     }
                 } catch (Exception ex) {
                     Monitor.error(monitor,