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Diffstat (limited to 'openecomp-be/lib/openecomp-sdc-logging-lib/openecomp-sdc-logging-spring/src/main/java')
| -rw-r--r-- | openecomp-be/lib/openecomp-sdc-logging-lib/openecomp-sdc-logging-spring/src/main/java/org/openecomp/sdc/logging/servlet/spring/LoggingInterceptor.java | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/openecomp-be/lib/openecomp-sdc-logging-lib/openecomp-sdc-logging-spring/src/main/java/org/openecomp/sdc/logging/servlet/spring/LoggingInterceptor.java b/openecomp-be/lib/openecomp-sdc-logging-lib/openecomp-sdc-logging-spring/src/main/java/org/openecomp/sdc/logging/servlet/spring/LoggingInterceptor.java new file mode 100644 index 0000000000..a467a9e38a --- /dev/null +++ b/openecomp-be/lib/openecomp-sdc-logging-lib/openecomp-sdc-logging-spring/src/main/java/org/openecomp/sdc/logging/servlet/spring/LoggingInterceptor.java @@ -0,0 +1,115 @@ +/* + * Copyright © 2016-2018 European Support Limited + * + * 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.openecomp.sdc.logging.servlet.spring; + +import static org.openecomp.sdc.logging.api.StatusCode.COMPLETE; +import static org.openecomp.sdc.logging.api.StatusCode.ERROR; + +import java.util.Objects; +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletResponse; +import org.openecomp.sdc.logging.api.Logger; +import org.openecomp.sdc.logging.api.LoggerFactory; +import org.openecomp.sdc.logging.api.StatusCode; +import org.openecomp.sdc.logging.servlet.CombinedTracker; +import org.openecomp.sdc.logging.servlet.HttpHeader; +import org.openecomp.sdc.logging.servlet.RequestProcessingResult; +import org.openecomp.sdc.logging.servlet.Tracker; +import org.springframework.http.HttpStatus; +import org.springframework.web.method.HandlerMethod; +import org.springframework.web.servlet.handler.HandlerInterceptorAdapter; + +/** + * <p>IMPORTANT: For this interceptor to work, all exceptions must be properly handled before being returned to a + * client. Any unexpected, automatically handled exception bypasses the interceptor and will not be logged.</p> + * <p>The interceptor must be either registered in Spring configuration XML as a bean, or programmatically as described + * in <a href="https://docs.spring.io/spring/docs/current/spring-framework-reference/web.html#mvc-config-interceptors"> + * Spring MVC Config: Interceptors</a>.</p> + * + * @author evitaliy + * @since 02 Aug 2018 + */ +public class LoggingInterceptor extends HandlerInterceptorAdapter { + + static final String LOGGING_TRACKER_KEY = "onap.logging.tracker"; + + private static final Logger LOGGER = LoggerFactory.getLogger(LoggingInterceptor.class); + + private final HttpHeader partnerNameHeader; + private final HttpHeader requestIdHeader; + + public LoggingInterceptor(HttpHeader partnerNameHeader, HttpHeader requestIdHeader) { + this.partnerNameHeader = Objects.requireNonNull(partnerNameHeader); + this.requestIdHeader = Objects.requireNonNull(requestIdHeader); + } + + @Override + public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) { + Class<?> resourceClass = getResourceType(handler); + Tracker tracker = new CombinedTracker(resourceClass, partnerNameHeader, requestIdHeader); + request.setAttribute(LOGGING_TRACKER_KEY, tracker); + tracker.preRequest(request); + return true; + } + + @Override + public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, + Exception ex) { + + Tracker tracker = (Tracker) request.getAttribute(LOGGING_TRACKER_KEY); + + if (tracker == null) { + LOGGER.debug("No logging tracker received"); + return; + } + + tracker.postRequest(new ServletResponseResult(response.getStatus())); + } + + private Class<?> getResourceType(Object handler) { + + if (handler instanceof HandlerMethod) { + return ((HandlerMethod) handler).getMethod().getDeclaringClass(); + } + + return LoggingInterceptor.class; + } + + static class ServletResponseResult implements RequestProcessingResult { + + private final HttpStatus status; + + ServletResponseResult(int status) { + this.status = HttpStatus.valueOf(status); + } + + @Override + public int getStatus() { + return status.value(); + } + + @Override + public StatusCode getStatusCode() { + return status.is2xxSuccessful() || status.is3xxRedirection() ? COMPLETE : ERROR; + } + + @Override + public String getStatusPhrase() { + return status.getReasonPhrase(); + } + } +}
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