Set custom log format. (#676)

toinehartman · web-flow · commit 6f968ef13961 · 2025-07-09T23:55:33.000+02:00
Fixes #657.
diff --git a/rascal-lsp/src/main/java/org/rascalmpl/vscode/lsp/BaseLanguageServer.java b/rascal-lsp/src/main/java/org/rascalmpl/vscode/lsp/BaseLanguageServer.java
@@ -87,6 +87,7 @@ public abstract class BaseLanguageServer {
     private static final @Nullable PrintStream capturedOut;
     private static final @Nullable InputStream capturedIn;
     private static final boolean DEPLOY_MODE;
+    private static final String LOG_CONFIGURATION_KEY = "log4j2.configurationFactory";
 
     static {
         DEPLOY_MODE = System.getProperty("rascal.lsp.deploy", "false").equalsIgnoreCase("true");
@@ -102,6 +103,8 @@ public abstract class BaseLanguageServer {
             capturedOut = null;
         }
         System.setProperty("java.util.logging.manager", "org.apache.logging.log4j.jul.LogManager");
+        // Do not overwrite existing settings (e.g. passed by the extension)
+        System.setProperty(LOG_CONFIGURATION_KEY, System.getProperty(LOG_CONFIGURATION_KEY, LogRedirectConfiguration.class.getName()));
     }
 
     // hide implicit constructor

Original file line number	Diff line number	Diff line change
`@@ -87,6 +87,7 @@ public abstract class BaseLanguageServer {`
`87`	`87`	`private static final @Nullable PrintStream capturedOut;`
`88`	`88`	`private static final @Nullable InputStream capturedIn;`
`89`	`89`	`private static final boolean DEPLOY_MODE;`
	`90`	`+ private static final String LOG_CONFIGURATION_KEY = "log4j2.configurationFactory";`
`90`	`91`
`91`	`92`	`static {`
`92`	`93`	`DEPLOY_MODE = System.getProperty("rascal.lsp.deploy", "false").equalsIgnoreCase("true");`
`@@ -102,6 +103,8 @@ public abstract class BaseLanguageServer {`
`102`	`103`	`capturedOut = null;`
`103`	`104`	`}`
`104`	`105`	`System.setProperty("java.util.logging.manager", "org.apache.logging.log4j.jul.LogManager");`
	`106`	`+ // Do not overwrite existing settings (e.g. passed by the extension)`
	`107`	`+ System.setProperty(LOG_CONFIGURATION_KEY, System.getProperty(LOG_CONFIGURATION_KEY, LogRedirectConfiguration.class.getName()));`
`105`	`108`	`}`
`106`	`109`
`107`	`110`	`// hide implicit constructor`