Unable to create brave tracer
0
I am creating a Servlet Filter as a independent jar (using brave as part of spring sleuth-Greenwich.BUILD-SNAPSHOT) so that it can be used in Spring boot app. I have created a filter and included in my spring boot app. But while doing so, it always returns null pointer exception (although it creates a half baked span in zipkin server) as shown below:
package com.somepackage;
import brave.ScopedSpan;
import brave.Span;
import brave.Tracer;
import brave.Tracing;
public class TestFilter implements Filter {
@Autowired
private Tracer tracer;
@Autowired
Span span;
@Autowired
private Tracing tracing;
FilterConfig filterConfig;
@Override
public void init(FilterConfig filterConfig) throws ServletException {
this.filterConfig = filterConfig;
}
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
if (request instanceof HttpServletRequest) {
final HttpServletRequest httpServletRequest = (HttpServletRequest) request;
String contextPath = httpServletRequest.getServletPath();
StringBuffer requestUrl = httpServletRequest.getRequestURL();
//always return null pointer at the below line 1. ??
Span span = tracer.newTrace().name("some-span-name").start(); //line 1
try {
span.tag("context-path", contextPath);
String logId = MDC.get(LOG_ID); //Assuming a key in MDC
span.tag("LOG_ID", correlationId);
span.tag("ENV", "dev");
chain.doFilter(request, response);
} catch (RuntimeException | Error e) {
span.error(e);
throw e;
} finally {
span.finish(); // always finish the span
}
}
}
@Override
public void destroy() {}
}
{"thread":"http-nio-8080-exec-2","level":"ERROR","loggerName":"org.springframework.cloud.sleuth.instrument.web.ExceptionLoggingFilter","message":"Uncaught exception thrown","thrown":{"commonElementCount":0,"name":"java.lang.NullPointerException","extendedStackTrace":[{"class":"com.somepackage.TestFilter","method":"doFilter","file":"EmZipkinFilter.java","line":37,"exact":false,"location":"testzipkin-1.0-SNAPSHOT.jar!/","version":"?"}
spring zipkin brave
asked Nov 20 '18 at 14:24
user8479984user8479984
115
add a comment |
0
I am creating a Servlet Filter as a independent jar (using brave as part of spring sleuth-Greenwich.BUILD-SNAPSHOT) so that it can be used in Spring boot app. I have created a filter and included in my spring boot app. But while doing so, it always returns null pointer exception (although it creates a half baked span in zipkin server) as shown below:
package com.somepackage;
import brave.ScopedSpan;
import brave.Span;
import brave.Tracer;
import brave.Tracing;
public class TestFilter implements Filter {
@Autowired
private Tracer tracer;
@Autowired
Span span;
@Autowired
private Tracing tracing;
FilterConfig filterConfig;
@Override
public void init(FilterConfig filterConfig) throws ServletException {
this.filterConfig = filterConfig;
}
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
if (request instanceof HttpServletRequest) {
final HttpServletRequest httpServletRequest = (HttpServletRequest) request;
String contextPath = httpServletRequest.getServletPath();
StringBuffer requestUrl = httpServletRequest.getRequestURL();
//always return null pointer at the below line 1. ??
Span span = tracer.newTrace().name("some-span-name").start(); //line 1
try {
span.tag("context-path", contextPath);
String logId = MDC.get(LOG_ID); //Assuming a key in MDC
span.tag("LOG_ID", correlationId);
span.tag("ENV", "dev");
chain.doFilter(request, response);
} catch (RuntimeException | Error e) {
span.error(e);
throw e;
} finally {
span.finish(); // always finish the span
}
}
}
@Override
public void destroy() {}
}
{"thread":"http-nio-8080-exec-2","level":"ERROR","loggerName":"org.springframework.cloud.sleuth.instrument.web.ExceptionLoggingFilter","message":"Uncaught exception thrown","thrown":{"commonElementCount":0,"name":"java.lang.NullPointerException","extendedStackTrace":[{"class":"com.somepackage.TestFilter","method":"doFilter","file":"EmZipkinFilter.java","line":37,"exact":false,"location":"testzipkin-1.0-SNAPSHOT.jar!/","version":"?"}
spring zipkin brave
asked Nov 20 '18 at 14:24
user8479984user8479984
115
add a comment |
0
0
0
I am creating a Servlet Filter as a independent jar (using brave as part of spring sleuth-Greenwich.BUILD-SNAPSHOT) so that it can be used in Spring boot app. I have created a filter and included in my spring boot app. But while doing so, it always returns null pointer exception (although it creates a half baked span in zipkin server) as shown below:
package com.somepackage;
import brave.ScopedSpan;
import brave.Span;
import brave.Tracer;
import brave.Tracing;
public class TestFilter implements Filter {
@Autowired
private Tracer tracer;
@Autowired
Span span;
@Autowired
private Tracing tracing;
FilterConfig filterConfig;
@Override
public void init(FilterConfig filterConfig) throws ServletException {
this.filterConfig = filterConfig;
}
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
if (request instanceof HttpServletRequest) {
final HttpServletRequest httpServletRequest = (HttpServletRequest) request;
String contextPath = httpServletRequest.getServletPath();
StringBuffer requestUrl = httpServletRequest.getRequestURL();
//always return null pointer at the below line 1. ??
Span span = tracer.newTrace().name("some-span-name").start(); //line 1
try {
span.tag("context-path", contextPath);
String logId = MDC.get(LOG_ID); //Assuming a key in MDC
span.tag("LOG_ID", correlationId);
span.tag("ENV", "dev");
chain.doFilter(request, response);
} catch (RuntimeException | Error e) {
span.error(e);
throw e;
} finally {
span.finish(); // always finish the span
}
}
}
@Override
public void destroy() {}
}
{"thread":"http-nio-8080-exec-2","level":"ERROR","loggerName":"org.springframework.cloud.sleuth.instrument.web.ExceptionLoggingFilter","message":"Uncaught exception thrown","thrown":{"commonElementCount":0,"name":"java.lang.NullPointerException","extendedStackTrace":[{"class":"com.somepackage.TestFilter","method":"doFilter","file":"EmZipkinFilter.java","line":37,"exact":false,"location":"testzipkin-1.0-SNAPSHOT.jar!/","version":"?"}
spring zipkin brave
asked Nov 20 '18 at 14:24
user8479984user8479984
115
I am creating a Servlet Filter as a independent jar (using brave as part of spring sleuth-Greenwich.BUILD-SNAPSHOT) so that it can be used in Spring boot app. I have created a filter and included in my spring boot app. But while doing so, it always returns null pointer exception (although it creates a half baked span in zipkin server) as shown below:
package com.somepackage;
import brave.ScopedSpan;
import brave.Span;
import brave.Tracer;
import brave.Tracing;
public class TestFilter implements Filter {
@Autowired
private Tracer tracer;
@Autowired
Span span;
@Autowired
private Tracing tracing;
FilterConfig filterConfig;
@Override
public void init(FilterConfig filterConfig) throws ServletException {
this.filterConfig = filterConfig;
}
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
if (request instanceof HttpServletRequest) {
final HttpServletRequest httpServletRequest = (HttpServletRequest) request;
String contextPath = httpServletRequest.getServletPath();
StringBuffer requestUrl = httpServletRequest.getRequestURL();
//always return null pointer at the below line 1. ??
Span span = tracer.newTrace().name("some-span-name").start(); //line 1
try {
span.tag("context-path", contextPath);
String logId = MDC.get(LOG_ID); //Assuming a key in MDC
span.tag("LOG_ID", correlationId);
span.tag("ENV", "dev");
chain.doFilter(request, response);
} catch (RuntimeException | Error e) {
span.error(e);
throw e;
} finally {
span.finish(); // always finish the span
}
}
}
@Override
public void destroy() {}
}
{"thread":"http-nio-8080-exec-2","level":"ERROR","loggerName":"org.springframework.cloud.sleuth.instrument.web.ExceptionLoggingFilter","message":"Uncaught exception thrown","thrown":{"commonElementCount":0,"name":"java.lang.NullPointerException","extendedStackTrace":[{"class":"com.somepackage.TestFilter","method":"doFilter","file":"EmZipkinFilter.java","line":37,"exact":false,"location":"testzipkin-1.0-SNAPSHOT.jar!/","version":"?"}
spring zipkin brave
spring zipkin brave
asked Nov 20 '18 at 14:24
user8479984user8479984
115
asked Nov 20 '18 at 14:24
user8479984user8479984
115
edited Nov 20 '18 at 14:38
user8479984
asked Nov 20 '18 at 14:24
user8479984user8479984
115
asked Nov 20 '18 at 14:24
user8479984user8479984
115
asked Nov 20 '18 at 14:24
user8479984user8479984
115
115
add a comment |
add a comment |
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