95 lines
1.8 KiB
Markdown
95 lines
1.8 KiB
Markdown
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#Java #logback
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#### CaptureAppender.java
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```java
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package kr.gmtc.gw.standstatus.logger;
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import ch.qos.logback.classic.spi.ILoggingEvent;
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import ch.qos.logback.core.AppenderBase;
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import ch.qos.logback.core.spi.FilterReply;
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import java.text.SimpleDateFormat;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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public class CaptureAppender extends AppenderBase<ILoggingEvent> {
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/**
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* Guard flag to prevent recursive calling of the appender.
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*/
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boolean guard;
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/**
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* Flag indicates that the appender is collecting the contents and storing them away
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*/
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private boolean collect;
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/**
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* STorage location for captured HTTP output.
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*/
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private List<String> capturedOutput = new ArrayList<>();
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private SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
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@Override
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protected synchronized void append(ILoggingEvent evt)
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{
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if (guard) {
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return;
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}
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try {
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guard = true;
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if (!this.started) {
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return;
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}
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if (getFilterChainDecision(evt) == FilterReply.DENY) {
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return;
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}
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capturedOutput.add(evt.getMessage());
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} finally {
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guard = false;
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}
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}
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public void startCollecting() {
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this.collect = true;
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this.capturedOutput.clear();
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}
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public List<String> stopCollecting() {
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this.collect = false;
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List<String> immutaList = new ArrayList<>();
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immutaList.addAll(this.capturedOutput);
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immutaList = Collections.unmodifiableList(immutaList);
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return immutaList;
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}
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}
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```
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#### logback-spring.xml
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```xml
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https://backtony.tistory.com/33
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<appender name="Capture" class=".....CaptureAppender">
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...
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</appender>
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```
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