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-rw-r--r--vid-app-common/src/main/java/org/onap/vid/model/aaiTree/FailureAAITreeNode.java31
1 files changed, 31 insertions, 0 deletions
diff --git a/vid-app-common/src/main/java/org/onap/vid/model/aaiTree/FailureAAITreeNode.java b/vid-app-common/src/main/java/org/onap/vid/model/aaiTree/FailureAAITreeNode.java
new file mode 100644
index 000000000..e6234fca2
--- /dev/null
+++ b/vid-app-common/src/main/java/org/onap/vid/model/aaiTree/FailureAAITreeNode.java
@@ -0,0 +1,31 @@
+package org.onap.vid.model.aaiTree;
+
+import org.apache.commons.proxy.Invoker;
+import org.apache.commons.proxy.factory.javassist.JavassistProxyFactory;
+import org.jetbrains.annotations.NotNull;
+import org.onap.vid.exceptions.GenericUncheckedException;
+
+public class FailureAAITreeNode extends AAITreeNode {
+
+ private static final Class[] classes = {AAITreeNode.class};
+ private static final JavassistProxyFactory proxyFactory = new JavassistProxyFactory(); // can proxy a class without an interface
+
+ private FailureAAITreeNode() {
+ // don't instantiate this class
+ }
+
+ /*
+ Returns a new AAITreeNode instance that throws an exception when
+ invoking any of its methods
+ */
+ public static AAITreeNode of(Exception failureException) {
+ return (AAITreeNode) proxyFactory.createInvokerProxy(exceptionThrower(failureException), classes);
+ }
+
+ @NotNull
+ private static Invoker exceptionThrower(Exception exception) {
+ return (self, thisMethod, args) -> {
+ throw new GenericUncheckedException("AAI node fetching failed.", exception);
+ };
+ }
+} \ No newline at end of file