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/*
* Copyright © 2017-2018 AT&T Intellectual Property.
* Modifications Copyright © 2018 IBM.
*
* 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.
*/
package org.onap.ccsdk.apps.controllerblueprints.filters;
import com.google.common.base.Preconditions;
import org.apache.commons.lang3.StringUtils;
import org.onap.ccsdk.apps.controllerblueprints.core.BluePrintConstants;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.slf4j.MDC;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpHeaders;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.http.server.reactive.ServerHttpResponse;
import org.springframework.web.server.ServerWebExchange;
import org.springframework.web.server.WebFilter;
import org.springframework.web.server.WebFilterChain;
import reactor.core.publisher.Mono;
import java.time.ZoneOffset;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.util.UUID;
/**
* ApplicationLoggingFilter
*
* @author Brinda Santh 8/14/2018
*/
@Configuration
@SuppressWarnings("unused")
public class ApplicationLoggingFilter implements WebFilter {
private static Logger log = LoggerFactory.getLogger(ApplicationLoggingFilter.class);
@SuppressWarnings("unused")
@Value("${appVersion}")
private String appVersion;
@Override
public Mono<Void> filter(ServerWebExchange serverWebExchange, WebFilterChain webFilterChain) {
try {
ServerHttpRequest request = serverWebExchange.getRequest();
ServerHttpResponse response = serverWebExchange.getResponse();
String[] tokens = StringUtils.split(appVersion, '.');
Preconditions.checkNotNull(tokens, "failed to split application versions");
Preconditions.checkArgument(tokens.length == 3, "failed to tokenize application versions");
HttpHeaders header = response.getHeaders();
String requestID = defaultToUUID(request.getHeaders().getFirst("X-ONAP-RequestID"));
String invocationID = defaultToUUID(request.getHeaders().getFirst("X-ONAP-InvocationID"));
String partnerName = defaultToEmpty(request.getHeaders().getFirst("X-ONAP-PartnerName"));
MDC.put("InvokeTimestamp", ZonedDateTime.now(ZoneOffset.UTC).format(DateTimeFormatter.ISO_INSTANT));
MDC.put("RequestID", requestID);
MDC.put("InvocationID", invocationID);
MDC.put("PartnerName", partnerName);
MDC.put("ClientIPAddress", defaultToEmpty(request.getRemoteAddress().getAddress()));
MDC.put("ServerFQDN", defaultToEmpty(request.getRemoteAddress().getHostString()));
header.add(BluePrintConstants.RESPONSE_HEADER_TRANSACTION_ID, requestID);
header.add(BluePrintConstants.RESPONSE_HEADER_MINOR_VERSION, tokens[1]);
header.add(BluePrintConstants.RESPONSE_HEADER_PATCH_VERSION, tokens[2]);
header.add(BluePrintConstants.RESPONSE_HEADER_LATEST_VERSION, appVersion);
} catch (Exception e) {
e.printStackTrace();
}
return webFilterChain.filter(serverWebExchange);
}
private static String defaultToUUID(String in) {
return in == null ? UUID.randomUUID().toString() : in;
}
private static String defaultToEmpty(Object in) {
return in == null ? "" : in.toString();
}
}
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