IDEA-364368, debugger: listener for breakpoint log messages

GitOrigin-RevId: 7ab775330d97cafff32ba15696b585a1c094c2a2

java/debugger/impl/src/com/intellij/debugger/ui/breakpoints/Breakpoint.java

@@ -100,6 +100,10 @@ public abstract class Breakpoint<P extends JavaBreakpointProperties> implements
     return myProject;
   }
 
+  private @NotNull BreakpointManager getBreakpointManager() {
+    return DebuggerManagerEx.getInstanceEx(myProject).getBreakpointManager();
+  }
+
   protected @NotNull P getProperties() {
     return myXBreakpoint.getProperties();
   }
@@ -395,7 +399,9 @@ public abstract class Breakpoint<P extends JavaBreakpointProperties> implements
         buf.append("\n");
       }
       if (!buf.isEmpty()) {
-        debugProcess.printToConsole(buf.toString());
+        var msg = buf.toString();
+        getBreakpointManager().multicastLogMessage(this, msg, debugProcess);
+        debugProcess.printToConsole(msg);
       }
     }
     if (isRemoveAfterHit()) {
@@ -623,7 +629,7 @@ public abstract class Breakpoint<P extends JavaBreakpointProperties> implements
       }
 
       private void removeBreakpoint() {
-        AppUIUtil.invokeOnEdt(() -> DebuggerManagerEx.getInstanceEx(myProject).getBreakpointManager().removeBreakpoint(Breakpoint.this));
+        AppUIUtil.invokeOnEdt(() -> getBreakpointManager().removeBreakpoint(Breakpoint.this));
         debugProcess.removeDebugProcessListener(this);
       }
     });

java/debugger/impl/src/com/intellij/debugger/ui/breakpoints/BreakpointLogMessageListener.kt

@@ -0,0 +1,14 @@
+// Copyright 2000-2026 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
+package com.intellij.debugger.ui.breakpoints
+
+import com.intellij.debugger.engine.DebugProcessImpl
+import org.jetbrains.annotations.ApiStatus
+import java.util.EventListener
+
+/**
+ * Listener for breakpoint messages: evaluate and log, stack trace, "breakpoint hit", etc.
+ */
+@ApiStatus.Internal
+fun interface BreakpointLogMessageListener : EventListener {
+  fun onLogMessage(breakpoint: Breakpoint<*>, message: String, debugProcess: DebugProcessImpl)
+}

java/debugger/impl/src/com/intellij/debugger/ui/breakpoints/BreakpointManager.java

@@ -14,6 +14,7 @@ import com.intellij.debugger.engine.LightOrRealThreadInfo;
 import com.intellij.debugger.engine.RealThreadInfo;
 import com.intellij.debugger.engine.requests.RequestManagerImpl;
 import com.intellij.debugger.impl.*;
+import com.intellij.openapi.Disposable;
 import com.intellij.openapi.application.ApplicationManager;
 import com.intellij.openapi.application.ReadAction;
 import com.intellij.openapi.application.WriteAction;
@@ -33,6 +34,8 @@ import com.intellij.openapi.util.Key;
 import com.intellij.openapi.vfs.VirtualFile;
 import com.intellij.openapi.vfs.VirtualFileManager;
 import com.intellij.psi.PsiField;
+import com.intellij.util.CoroutineScopeKt;
+import com.intellij.util.EventDispatcher;
 import com.intellij.util.concurrency.AppExecutorUtil;
 import com.intellij.util.concurrency.ThreadingAssertions;
 import com.intellij.util.containers.ContainerUtil;
@@ -55,6 +58,7 @@ import com.sun.jdi.VMDisconnectedException;
 import com.sun.jdi.request.EventRequest;
 import com.sun.jdi.request.EventRequestManager;
 import com.sun.jdi.request.InvalidRequestStateException;
+import kotlinx.coroutines.CoroutineScope;
 import one.util.streamex.StreamEx;
 import org.jdom.Element;
 import org.jetbrains.annotations.NonNls;
@@ -86,6 +90,8 @@ public class BreakpointManager {
   private final Project myProject;
   private final Map<String, String> myUIProperties = new LinkedHashMap<>();
 
+  private final EventDispatcher<BreakpointLogMessageListener> myLogMessageDispatcher = EventDispatcher.create(BreakpointLogMessageListener.class);
+
   public BreakpointManager(@NotNull Project project, @NotNull DebuggerManagerImpl debuggerManager) {
     myProject = project;
     debuggerManager.getContextManager().addListener(new DebuggerContextListener() {
@@ -665,4 +671,16 @@ public class BreakpointManager {
   public String setProperty(String name, String value) {
     return myUIProperties.put(name, value);
   }
+
+  public void addLogMessageListener(CoroutineScope scope, BreakpointLogMessageListener listener) {
+    addLogMessageListener(listener, CoroutineScopeKt.asDisposable(scope));
+  }
+
+  private void addLogMessageListener(BreakpointLogMessageListener listener, Disposable parentDisposable) {
+    myLogMessageDispatcher.addListener(listener, parentDisposable);
+  }
+
+  void multicastLogMessage(Breakpoint<?> breakpoint, String message, DebugProcessImpl debugProcess) {
+    myLogMessageDispatcher.getMulticaster().onLogMessage(breakpoint, message, debugProcess);
+  }
 }