Fix bug about custom exceptions not being used

The bug was that custom exception config was never actually queried
because of the mismatch between the production code usages and .json config file.

Change-Id: I416ef5f45770f9bb55d5dff143277b6c62fa25ba
Issue-ID: DCAEGEN2-518
Signed-off-by: PawelSzalapski <pawel.szalapski@nokia.com>

1 files changed, 70 insertions, 0 deletions

diff --git a/src/main/java/org/onap/dcae/restapi/ApiException.java b/src/main/java/org/onap/dcae/restapi/ApiException.java
new file mode 100644
index 00000000..3feeacfc
--- /dev/null
+++ b/src/main/java/org/onap/dcae/restapi/ApiException.java
@@ -0,0 +1,70 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * org.onap.dcaegen2.collectors.ves
+ * ================================================================================
+ * Copyright (C) 2018 Nokia. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.dcae.restapi;
+
+import com.google.common.base.CaseFormat;
+import org.json.JSONObject;
+
+/**
+ * @author Pawel Szalapski (pawel.szalapski@nokia.com)
+ */
+public enum ApiException {
+
+    INVALID_JSON_INPUT(ExceptionType.SERVICE_EXCEPTION, "SVC0002", "Incorrect JSON payload", 400),
+    SCHEMA_VALIDATION_FAILED(ExceptionType.SERVICE_EXCEPTION, "SVC0002", "Bad Parameter (JSON does not conform to schema)", 400),
+    INVALID_CONTENT_TYPE(ExceptionType.SERVICE_EXCEPTION, "SVC0002", "Bad Parameter (Incorrect request Content-Type)", 400),
+    UNAUTHORIZED_USER(ExceptionType.POLICY_EXCEPTION, "POL2000", "Unauthorized user", 401),
+    NO_SERVER_RESOURCES(ExceptionType.SERVICE_EXCEPTION, "SVC1000", "No server resources (internal processing queue full)", 503);
+
+    public final ExceptionType type;
+    public final String code;
+    public final String details;
+    public final int httpStatusCode;
+
+    ApiException(ExceptionType type, String code, String details, int httpStatusCode) {
+        this.type = type;
+        this.code = code;
+        this.details = details;
+        this.httpStatusCode = httpStatusCode;
+    }
+
+    public enum ExceptionType {
+        SERVICE_EXCEPTION, POLICY_EXCEPTION;
+
+        @Override
+        public String toString() {
+            return CaseFormat.UPPER_UNDERSCORE.to(CaseFormat.UPPER_CAMEL, this.name());
+        }
+    }
+
+    public JSONObject toJSON() {
+        JSONObject exceptionTypeNode = new JSONObject();
+        exceptionTypeNode.put("messageId", code );
+        exceptionTypeNode.put("text", details);
+
+        JSONObject requestErrorNode = new JSONObject();
+        requestErrorNode.put(type.toString(), exceptionTypeNode);
+
+        JSONObject rootNode = new JSONObject();
+        rootNode.put("requestError", requestErrorNode);
+        return rootNode;
+    }
+
+}