2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 - 2019 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END=========================================================
21 package org.onap.vid.utils;
23 import static java.util.Collections.emptyMap;
24 import static org.apache.commons.lang3.ObjectUtils.defaultIfNull;
25 import static org.apache.commons.lang3.exception.ExceptionUtils.getRootCause;
26 import static org.apache.commons.lang3.exception.ExceptionUtils.getThrowableList;
27 import static org.onap.vid.utils.Streams.not;
29 import com.att.eelf.configuration.EELFLogger;
30 import com.fasterxml.jackson.core.JsonProcessingException;
31 import com.fasterxml.jackson.databind.ObjectMapper;
32 import com.fasterxml.jackson.databind.SerializationFeature;
33 import com.google.common.collect.ImmutableList;
34 import io.joshworks.restclient.http.HttpResponse;
35 import java.nio.charset.StandardCharsets;
36 import java.util.Arrays;
38 import java.util.Objects;
39 import java.util.Optional;
40 import java.util.UUID;
41 import java.util.concurrent.Callable;
42 import java.util.function.Function;
43 import javax.servlet.http.HttpServletRequest;
44 import javax.ws.rs.core.Response;
45 import org.apache.commons.io.IOUtils;
46 import org.apache.commons.lang3.StringUtils;
47 import org.onap.portalsdk.core.logging.logic.EELFLoggerDelegate;
48 import org.onap.portalsdk.core.util.SystemProperties;
49 import org.onap.vid.exceptions.GenericUncheckedException;
50 import org.onap.vid.utils.Unchecked.UncheckedThrowingSupplier;
52 import org.springframework.http.HttpMethod;
53 import org.springframework.stereotype.Service;
54 import org.springframework.web.context.request.RequestContextHolder;
55 import org.springframework.web.context.request.ServletRequestAttributes;
58 public class Logging {
60 public static final String HTTP_REQUESTS_OUTGOING = "http.requests.outgoing.";
62 public static final String REQUEST_ID_HEADER_KEY = SystemProperties.ECOMP_REQUEST_ID;
63 public static final String ONAP_REQUEST_ID_HEADER_KEY = "X-ONAP-RequestID";
66 private static ObjectMapper objectMapper = new ObjectMapper();
68 public static String getMethodName() {
69 return getMethodName(0);
72 public static String getMethodCallerName() {
73 return getMethodName(1);
76 private static String getMethodName(int depth) {
77 final StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();
78 String thisClassName = stackTrace[1].getClassName();
79 final Optional<String> caller =
80 Arrays.stream(stackTrace)
82 .filter(not(frame -> frame.getClassName().equals(thisClassName)))
84 .map(StackTraceElement::getMethodName)
86 return caller.orElse("<unknonwn method name>");
89 public static EELFLogger getRequestsLogger(String serverName) {
90 return EELFLoggerDelegate.getLogger(HTTP_REQUESTS_OUTGOING +serverName);
93 public void logRequest(final EELFLogger logger, final HttpMethod method, final String url, final Object body) {
94 if (!logger.isDebugEnabled()) {
99 logRequest(logger, method, url);
104 String bodyAsJson = objectMapper.writeValueAsString(body);
105 logger.debug("Sending {} {} Body: {}", method.name(), url, bodyAsJson);
106 } catch (JsonProcessingException e) {
107 logRequest(logger, method, url);
108 logger.debug("Failed to parse object in logRequest. {}", body);
112 public void logRequest(final EELFLogger logger, final HttpMethod method, final String url) {
113 logger.debug("Sending {} {}", method.name(), url);
116 public <T> void logResponse(final EELFLogger logger, final HttpMethod method, final String url, final Response response, final Class<T> entityClass) {
117 if (!logger.isDebugEnabled()) {
120 if (response == null) {
121 logger.debug("Received {} {} response: null", method.name(), url);
125 response.bufferEntity();
126 logger.debug("Received {} {} Status: {} . Body: {}", method.name(), url, response.getStatus(), new Substring(response.readEntity(entityClass)));
128 catch (Exception e) {
129 logger.debug("Received {} {} Status: {} . Failed to read response as {}", method.name(), url, response.getStatus(), entityClass.getName());
133 public <T> void logResponse(final EELFLogger logger, final HttpMethod method, final String url, final HttpResponse<T> response) {
135 logger.debug("Received {} {} Status: {} . Body: {}", method.name(),
136 url, response.getStatus(), new Substring(IOUtils.toString(response.getRawBody(), StandardCharsets.UTF_8)));
137 response.getRawBody().reset();
139 catch (Exception e) {
140 logger.debug("Received {} {} Status: {} . Failed to read response", method.name(), url, response.getStatus());
144 public void logResponse(final EELFLogger logger, final HttpMethod method, final String url, final Response response) {
145 logResponse(logger, method, url, response, String.class);
148 public static HttpServletRequest getHttpServletRequest(){
149 return ((ServletRequestAttributes) RequestContextHolder.currentRequestAttributes()).getRequest();
152 public static String extractOrGenerateRequestId() {
154 return getHttpServletRequest().getHeader(REQUEST_ID_HEADER_KEY);
156 catch (IllegalStateException e) {
157 //in async jobs we don't have any HttpServletRequest
158 return UUID.randomUUID().toString();
162 public static void debugRequestDetails(Object requestDetails, final EELFLogger logger) {
163 if (logger.isDebugEnabled()) {
164 String requestDetailsAsString;
166 requestDetailsAsString = new ObjectMapper().enable(SerializationFeature.INDENT_OUTPUT).writeValueAsString(requestDetails);
167 } catch (JsonProcessingException e) {
168 requestDetailsAsString = "error: cannot stringify RequestDetails";
170 logger.debug("requestDetailsAsString: {}", requestDetailsAsString);
174 public static String exceptionToDescription(Throwable exceptionToDescribe) {
175 // Ignore top-most GenericUnchecked or Runtime exceptions that has no added message
176 final Throwable top = getThrowableList(exceptionToDescribe).stream()
177 .filter(not(e -> ImmutableList.of(GenericUncheckedException.class, RuntimeException.class).contains(e.getClass())
178 && StringUtils.equals(e.getMessage(), e.getCause() == null ? null : e.getCause().toString())))
179 .findFirst().orElse(exceptionToDescribe);
181 final Throwable root = defaultIfNull(getRootCause(top), top);
183 String rootToString = root.toString();
185 // nullPointer description will include some context
186 if (root.getClass().equals(NullPointerException.class) && root.getStackTrace().length > 0) {
187 rootToString = String.format("NullPointerException at %s:%d",
188 root.getStackTrace()[0].getFileName(),
189 root.getStackTrace()[0].getLineNumber());
192 // if input is a single exception, without cause: top.toString
193 // else: return top.toString + root.toString
194 // but not if root is already described in top.toString
195 if (top.equals(root)) {
198 final String topToString = top.toString();
199 if (topToString.contains(root.getClass().getName()) && topToString.contains(root.getLocalizedMessage())) {
202 return topToString + ": " + rootToString;
208 * This class defers the toString() and truncation to the point in time where logger needs it.
209 * This will save some bytes in memory if logger will decide to discard the logging (mostly because logging level
210 * is filtering the message out).
212 static class Substring {
213 private final Object obj;
214 private final int maxLen = 1_000_000;
216 public Substring(Object obj) {
221 public String toString() {
222 // null safe truncation
223 return StringUtils.left(Objects.toString(obj), maxLen);
228 * in order to be able to write the correct data while creating the node on a new thread save a copy of the current
229 * thread's context map, with keys and values of type String.
231 public <T> Callable<T> withMDC(Map<String, String> copyOfParentMDC, Callable<T> callable) {
232 return () -> withMDCInternal(copyOfParentMDC, callable::call);
236 * in order to be able to write the correct data while creating the node on a new thread save a copy of the current
237 * thread's context map, with keys and values of type String.
239 public <T, U> Function<T, U> withMDC(Map<String, String> copyOfParentMDC, Function<T, U> function) {
240 return t -> withMDCInternal(copyOfParentMDC, () -> function.apply(t));
243 <T> T withMDCInternal(Map<String, String> copyOfParentMDC, UncheckedThrowingSupplier<T> supplier) {
245 MDC.setContextMap(defaultIfNull(copyOfParentMDC, emptyMap()));
246 return supplier.get();