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+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 2017-2018 AT&T Intellectual Property. 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.aai.interceptors.pre;
+
+import org.onap.aai.interceptors.AAIContainerFilter;
+import org.onap.aai.interceptors.AAIHeaderProperties;
+
+import javax.annotation.Priority;
+import javax.ws.rs.HttpMethod;
+import javax.ws.rs.container.ContainerRequestContext;
+import javax.ws.rs.container.ContainerRequestFilter;
+import javax.ws.rs.container.PreMatching;
+import javax.ws.rs.core.MultivaluedMap;
+import javax.ws.rs.ext.Provider;
+import java.io.IOException;
+
+/**
+ * The Class HttpHeaderInterceptor
+ */
+@Provider
+@PreMatching
+@Priority(AAIRequestFilterPriority.HTTP_HEADER)
+public class HttpHeaderInterceptor extends AAIContainerFilter implements ContainerRequestFilter {
+ public static final String patchMethod = "PATCH";
+
+ @Override
+ public void filter(ContainerRequestContext containerRequestContext) throws IOException {
+
+ MultivaluedMap<String, String> headersMap = containerRequestContext.getHeaders();
+ String overrideMethod = headersMap.getFirst(AAIHeaderProperties.HTTP_METHOD_OVERRIDE);
+ String httpMethod = containerRequestContext.getMethod();
+
+ if (HttpMethod.POST.equalsIgnoreCase(httpMethod) && patchMethod.equalsIgnoreCase(overrideMethod)) {
+ containerRequestContext.setMethod(patchMethod);
+ }
+ }
+
+}