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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 java.io.IOException;
import java.util.Collections;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.annotation.Priority;
import javax.servlet.http.HttpServletRequest;
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 org.onap.aai.interceptors.AAIContainerFilter;
import org.onap.aai.interceptors.AAIHeaderProperties;
import org.springframework.beans.factory.annotation.Autowired;
@PreMatching
@Priority(AAIRequestFilterPriority.HEADER_MANIPULATION)
public class RequestHeaderManipulation extends AAIContainerFilter implements ContainerRequestFilter {
@Autowired
private HttpServletRequest httpServletRequest;
private static final Pattern versionedEndpoint = Pattern.compile("^/aai/(v\\d+)");
@Override
public void filter(ContainerRequestContext requestContext) throws IOException {
String uri = httpServletRequest.getRequestURI();
this.addRequestContext(uri, requestContext.getHeaders());
}
private void addRequestContext(String uri, MultivaluedMap<String, String> requestHeaders) {
String rc = "";
Matcher match = versionedEndpoint.matcher(uri);
if (match.find()) {
rc = match.group(1);
}
if (requestHeaders.containsKey(AAIHeaderProperties.REQUEST_CONTEXT)) {
requestHeaders.remove(AAIHeaderProperties.REQUEST_CONTEXT);
}
requestHeaders.put(AAIHeaderProperties.REQUEST_CONTEXT, Collections.singletonList(rc));
}
}
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