valid api version

Issue-ID: DCAEGEN2-897

Change-Id: I77f015dadb03159a1c2cf43cf6a8a782d7a2e27a
Signed-off-by: luna <nil@vmware.com>

1 files changed, 61 insertions, 0 deletions

diff --git a/src/main/java/org/onap/dcae/common/HeaderUtils.java b/src/main/java/org/onap/dcae/common/HeaderUtils.java
new file mode 100644
index 00000000..a5703091
--- /dev/null
+++ b/src/main/java/org/onap/dcae/common/HeaderUtils.java
@@ -0,0 +1,61 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PROJECT
+ * ================================================================================
+ * Copyright (C) 2019 VMware, Inc. All rights reserved.
+ * Copyright (C) 2019 Nokia. All rights reserved.s
+ * ================================================================================
+ * 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.common;
+
+import java.util.Collections;
+import java.util.Map;
+import java.util.Objects;
+import java.util.stream.Collectors;
+import javax.servlet.http.HttpServletRequest;
+import org.springframework.http.HttpHeaders;
+import org.springframework.stereotype.Component;
+
+/**
+ * @author nil
+ */
+@Component
+public final class HeaderUtils {
+
+  public String getApiVerFilePath(String fileName) {
+    return Objects.requireNonNull(ClassLoader.getSystemClassLoader().getResource(fileName))
+        .getPath();
+  }
+
+  public String getRestApiIdentify(String uri) {
+    return isBatchRequest(uri) ? "eventListener_eventBatch" : "eventListener";
+  }
+
+  public Map<String, String> extractHeaders(HttpServletRequest request) {
+    return Collections.list(request.getHeaderNames()).stream()
+        .collect(Collectors.toMap(h -> h, request::getHeader));
+  }
+
+  public HttpHeaders fillHeaders(Map<String, String> headers) {
+    HttpHeaders httpHeaders = new HttpHeaders();
+    httpHeaders.setAll(headers);
+    return httpHeaders;
+  }
+
+  private boolean isBatchRequest(String request) {
+    return request.contains("eventBatch");
+  }
+}