SLF4J / SLF4J-371 [Resolved] Support the lambda expression in the Logger ==============================
Here's what changed in this issue in the last few minutes. There is 1 comment. View or comment on issue using this link https://jira.qos.ch/browse/SLF4J-371 ============================== 1 comment ------------------------------ Ondrej Zizka on 20/Nov/22 10:23 PM Yes, using Spring Boot. In a project without Spring Boot, it was ok. But I did not go further into it yet as it works with the older. In Kotlin, one can write these 3 lines to make the evaluation lazy: {color:#002586}fun {color}{color:#000000}Logger{color}{color:#d50c0c}.{color}{color:#00627a}info{color}{color:#940076}( {color}provider: {color:#940076}() -> {color}{color:#000000}String {color}{color:#940076}) {color}{ {color:#002586}if {color}{color:#940076}({color}{color:#002586}this{color}{color:#d50c0c}.{color}{color:#871094}isInfoEnabled{color}{color:#940076}) {color}{color:#002586}this{color}{color:#d50c0c}.{color}info{color:#940076}({color}provider{color:#d50c0c}.{color}invoke{color:#940076}()) {color}} {color:#002586}fun {color}{color:#000000}Logger{color}{color:#d50c0c}.{color}{color:#00627a}debug{color}{color:#940076}( {color}provider: {color:#940076}() -> {color}{color:#000000}String {color}{color:#940076}) {color}{ {color:#002586}if {color}{color:#940076}({color}{color:#002586}this{color}{color:#d50c0c}.{color}{color:#871094}isDebugEnabled{color}{color:#940076}) {color}{color:#002586}this{color}{color:#d50c0c}.{color}debug{color:#940076}({color}provider{color:#d50c0c}.{color}invoke{color:#940076}()) {color}} {color:#002586}fun {color}{color:#000000}Logger{color}{color:#d50c0c}.{color}{color:#00627a}trace{color}{color:#940076}( {color}provider: {color:#940076}() -> {color}{color:#000000}String {color}{color:#940076}) {color}{ {color:#002586}if {color}{color:#940076}({color}{color:#002586}this{color}{color:#d50c0c}.{color}{color:#871094}isTraceEnabled{color}{color:#940076}) {color}{color:#002586}this{color}{color:#d50c0c}.{color}trace{color:#940076}({color}provider{color:#d50c0c}.{color}invoke{color:#940076}()) {color}} And then just: {code:java} log.trace { "State dump: " + expensiveLongSerialisation(state) }{code} Still, it would be nice to have that in Slf4j directly. ============================== This message was sent by Atlassian Jira (v8.8.0#808000-sha1:e2c7e59) _______________________________________________ slf4j-dev mailing list slf4j-dev@qos.ch https://mailman.qos.ch/cgi-bin/mailman/listinfo/slf4j-dev
