wxbty commented on code in PR #11088:
URL: https://github.com/apache/dubbo/pull/11088#discussion_r1107018616
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dubbo-remoting/dubbo-remoting-api/src/main/java/org/apache/dubbo/remoting/exchange/support/header/HeaderExchangeHandler.java:
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@@ -82,15 +87,31 @@ void handleRequest(final ExchangeChannel channel, Request
req) throws RemotingEx
Response res = new Response(req.getId(), req.getVersion());
if (req.isBroken()) {
Object data = req.getData();
+ Throwable error = req.getError();
String msg;
if (data == null) {
msg = null;
- } else if (data instanceof Throwable) {
- msg = StringUtils.toString((Throwable) data);
} else {
msg = data.toString();
}
+
+ if (error != null) {
+ msg = StringUtils.toString(error);
+ // Give ExceptionProcessors a chance to retry request handle
or custom exception information.
+ String exPs =
ApplicationModel.defaultModel().getCurrentConfig().getParameters().get(EXCEPTION_PROCESSOR_KEY);
+ if (StringUtils.isNotBlank(exPs)) {
+ ExtensionLoader<ExceptionProcessor> extensionLoader =
ApplicationModel.defaultModel().getDefaultModule().getExtensionLoader(ExceptionProcessor.class);
+ ExceptionProcessor expProcessor =
extensionLoader.getOrDefaultExtension(exPs);
Review Comment:
use System.getProperty instead
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