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package org.onap.vid.utils;
import com.att.eelf.configuration.EELFLogger;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.google.common.collect.ImmutableList;
import io.joshworks.restclient.http.HttpResponse;
import org.apache.commons.lang3.StringUtils;
import org.onap.vid.exceptions.GenericUncheckedException;
import org.onap.portalsdk.core.logging.logic.EELFLoggerDelegate;
import org.onap.portalsdk.core.util.SystemProperties;
import org.springframework.http.HttpMethod;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.ProcessingException;
import javax.ws.rs.core.Response;
import java.util.Arrays;
import java.util.Optional;
import java.util.UUID;
import static org.apache.commons.lang3.ObjectUtils.defaultIfNull;
import static org.apache.commons.lang3.exception.ExceptionUtils.getRootCause;
import static org.apache.commons.lang3.exception.ExceptionUtils.getThrowableList;
import static org.onap.vid.utils.Streams.not;
public class Logging {
Logging() {
}
public static final String HTTP_REQUESTS_OUTGOING = "http.requests.outgoing.";
public static final String REQUEST_ID_HEADER_KEY = SystemProperties.ECOMP_REQUEST_ID;
private static ObjectMapper objectMapper = new ObjectMapper();
public static String getMethodName() {
return getMethodName(0);
}
public static String getMethodCallerName() {
return getMethodName(1);
}
private static String getMethodName(int depth) {
final StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();
String thisClassName = stackTrace[1].getClassName();
final Optional<String> caller =
Arrays.stream(stackTrace)
.skip(1)
.filter(not(frame -> frame.getClassName().equals(thisClassName)))
.skip(depth)
.map(StackTraceElement::getMethodName)
.findFirst();
return caller.orElse("<unknonwn method name>");
}
public static EELFLogger getRequestsLogger(String serverName) {
return EELFLoggerDelegate.getLogger(HTTP_REQUESTS_OUTGOING +serverName);
}
public static void logRequest(final EELFLogger logger, final HttpMethod method, final String url, final Object body) {
if (!logger.isDebugEnabled()) {
return;
}
if (body == null) {
logRequest(logger, method, url);
return;
}
try {
String bodyAsJson = objectMapper.writeValueAsString(body);
logger.debug("Sending {} {} Body: {}", method.name(), url, bodyAsJson);
} catch (JsonProcessingException e) {
logRequest(logger, method, url);
logger.debug("Failed to parse object in logRequest. {}", body);
}
}
public static void logRequest(final EELFLogger logger, final HttpMethod method, final String url) {
logger.debug("Sending {} {}", method.name(), url);
}
public static <T> void logResponse(final EELFLogger logger, final HttpMethod method, final String url, final Response response, final Class<T> entityClass) {
if (!logger.isDebugEnabled()) {
return;
}
if (response == null) {
logger.debug("Received {} {} response: null", method.name(), url);
return;
}
try {
response.bufferEntity();
logger.debug("Received {} {} Status: {} . Body: {}", method.name(), url, response.getStatus(), response.readEntity(entityClass));
}
catch (ProcessingException | IllegalStateException e) {
logger.debug("Received {} {} Status: {} . Failed to read response as {}", method.name(), url, response.getStatus(), entityClass.getName());
}
}
public static <T> void logResponse(final EELFLogger logger, final HttpMethod method, final String url, final HttpResponse<T> response) {
try {
logger.debug("Received {} {} Status: {} . Body: {}", method.name(), url, response.getStatus(), response.getBody());
}
catch (ProcessingException | IllegalStateException e) {
logger.debug("Received {} {} Status: {} . Failed to read response", method.name(), url, response.getStatus());
}
}
public static void logResponse(final EELFLogger logger, final HttpMethod method, final String url, final Response response) {
logResponse(logger, method, url, response, String.class);
}
public static HttpServletRequest getHttpServletRequest(){
return ((ServletRequestAttributes) RequestContextHolder.currentRequestAttributes()).getRequest();
}
public static String extractOrGenerateRequestId() {
try {
return getHttpServletRequest().getHeader(REQUEST_ID_HEADER_KEY);
}
catch (IllegalStateException e) {
//in async jobs we don't have any HttpServletRequest
return UUID.randomUUID().toString();
}
}
public static void debugRequestDetails(Object requestDetails, final EELFLogger logger) {
if (logger.isDebugEnabled()) {
String requestDetailsAsString;
try {
requestDetailsAsString = new ObjectMapper().enable(SerializationFeature.INDENT_OUTPUT).writeValueAsString(requestDetails);
} catch (JsonProcessingException e) {
requestDetailsAsString = "error: cannot stringify RequestDetails";
}
logger.debug("requestDetailsAsString: {}", requestDetailsAsString);
}
}
public static String exceptionToDescription(Throwable exceptionToDescribe) {
// Ignore top-most GenericUnchecked or Runtime exceptions that has no added message
final Throwable top = getThrowableList(exceptionToDescribe).stream()
.filter(not(e -> ImmutableList.of(GenericUncheckedException.class, RuntimeException.class).contains(e.getClass())
&& StringUtils.equals(e.getMessage(), e.getCause() == null ? null : e.getCause().toString())))
.findFirst().orElse(exceptionToDescribe);
final Throwable root = defaultIfNull(getRootCause(top), top);
String rootToString = root.toString();
// nullPointer description will include some context
if (root.getClass().equals(NullPointerException.class) && root.getStackTrace().length > 0) {
rootToString = String.format("NullPointerException at %s:%d",
root.getStackTrace()[0].getFileName(),
root.getStackTrace()[0].getLineNumber());
}
// if input is a single exception, without cause: top.toString
// else: return top.toString + root.toString
// but not if root is already described in top.toString
if (top.equals(root)) {
return rootToString;
} else {
final String topToString = top.toString();
if (topToString.contains(root.getClass().getName()) && topToString.contains(root.getLocalizedMessage())) {
return topToString;
} else {
return topToString + ": " + rootToString;
}
}
}
}
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