Add interface to get info from exceptions

Interface allows uniform geting of information from checked
and runtime model exceptions

Issue-ID: POLICY-1195
Change-Id: I913b98a4d4b705ed256714392cafc72d6a71877f
Signed-off-by: liamfallon <liam.fallon@est.tech>

1 files changed, 64 insertions, 0 deletions

diff --git a/models-base/src/test/java/org/onap/policy/models/base/PfModelExceptionInfoTest.java b/models-base/src/test/java/org/onap/policy/models/base/PfModelExceptionInfoTest.java
new file mode 100644
index 000000000..1257975ad
--- /dev/null
+++ b/models-base/src/test/java/org/onap/policy/models/base/PfModelExceptionInfoTest.java
@@ -0,0 +1,64 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.models.base;
+
+import static org.junit.Assert.assertEquals;
+
+import javax.ws.rs.core.Response;
+
+import org.junit.Test;
+
+/**
+ * Test PfModelExceptionInfo interface.
+ *
+ * @author Liam Fallon (liam.fallon@est.tech)
+ */
+public class PfModelExceptionInfoTest {
+    @Test
+    public void exceptionInfoTest() {
+        try {
+            throw new PfModelException(Response.Status.ACCEPTED, "HELLO");
+        } catch (PfModelException  pfme) {
+            String errorMessage = getErrorMessage(pfme);
+            assertEquals("Server returned: Accepted", errorMessage.substring(0, 25));
+        }
+
+        try {
+            throw new PfModelRuntimeException(Response.Status.ACCEPTED, "HELLO");
+        } catch (PfModelRuntimeException pfme) {
+            String errorMessage = getErrorMessage(pfme);
+            assertEquals("Server returned: Accepted", errorMessage.substring(0, 25));
+        }
+    }
+
+    private String getErrorMessage(final PfModelExceptionInfo pfme) {
+        StringBuilder stringBuilder = new StringBuilder();
+
+        stringBuilder.append("Server returned: ");
+        stringBuilder.append(pfme.getStatusCode().toString());
+        stringBuilder.append("\nDetailed Message:\n");
+        stringBuilder.append(pfme.getCascadedMessage());
+        stringBuilder.append("\nStack Trace:\n");
+        stringBuilder.append(pfme.getStackTraceAsString());
+
+        return stringBuilder.toString();
+    }
+}