Make The Build Faster: Drop the describeStrategy() and strategyLocality() methods, as we can simply pass an ActionStatusMessage to the EventBus instead. All SpawnActionContexts now send an appropriate message when they execute a Spawn.

This also gets rid of the idiom that an Action knows which strategy will be used to execute it - this decision and knowledge belongs to the executor, not the action.

--
MOS_MIGRATED_REVID=113731846

34 files changed, 30 insertions, 180 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/actions/ActionExecutionStatusReporter.java b/src/main/java/com/google/devtools/build/lib/actions/ActionExecutionStatusReporter.java
index 8a29b08ea0..7a2a410d85 100644
--- a/src/main/java/com/google/devtools/build/lib/actions/ActionExecutionStatusReporter.java
+++ b/src/main/java/com/google/devtools/build/lib/actions/ActionExecutionStatusReporter.java
@@ -117,20 +117,13 @@ public final class ActionExecutionStatusReporter {
   }
 
   public void setRunningFromBuildData(ActionMetadata action) {
-    updateStatus(ActionStatusMessage.runningStrategy(action));
+    updateStatus(ActionStatusMessage.runningStrategy(action, "unknown"));
   }
 
   @Subscribe
   public void updateStatus(ActionStatusMessage statusMsg) {
     String message = statusMsg.getMessage();
     ActionMetadata action = statusMsg.getActionMetadata();
-    if (statusMsg.needsStrategy()) {
-      String strategy = action.describeStrategy(executor);
-      if (strategy == null) {
-        return;
-      }
-      message = String.format(message, strategy);
-    }
     setStatus(action, message);
   }
 
diff --git a/src/main/java/com/google/devtools/build/lib/actions/ActionMetadata.java b/src/main/java/com/google/devtools/build/lib/actions/ActionMetadata.java
index c8c82c86ca..08b501c4c6 100644
--- a/src/main/java/com/google/devtools/build/lib/actions/ActionMetadata.java
+++ b/src/main/java/com/google/devtools/build/lib/actions/ActionMetadata.java
@@ -61,19 +61,6 @@ public interface ActionMetadata {
   String prettyPrint();
 
   /**
-   * Returns a string that can be used to describe the execution strategy.
-   * For example, "local".
-   *
-   * May return null if the action chooses to update its strategy
-   * locality "manually", via ActionLocalityMessage.
-   *
-   * @param executor the application-specific value passed to the
-   *   executor parameter of the top-level call to
-   *   Builder.buildArtifacts().
-   */
-  String describeStrategy(Executor executor);
-
-  /**
    * Returns true iff the getInputs set is known to be complete.
    *
    * <p>For most Actions, this always returns true, but in some cases (e.g. C++ compilation), inputs
diff --git a/src/main/java/com/google/devtools/build/lib/actions/ActionStatusMessage.java b/src/main/java/com/google/devtools/build/lib/actions/ActionStatusMessage.java
index 45de35d48d..144e862297 100644
--- a/src/main/java/com/google/devtools/build/lib/actions/ActionStatusMessage.java
+++ b/src/main/java/com/google/devtools/build/lib/actions/ActionStatusMessage.java
@@ -24,7 +24,7 @@ public class ActionStatusMessage {
   private final String message;
   public static final String PREPARING = "Preparing";
 
-  public ActionStatusMessage(ActionMetadata action, String message) {
+  private ActionStatusMessage(ActionMetadata action, String message) {
     this.action = action;
     this.message = message;
   }
@@ -37,11 +37,6 @@ public class ActionStatusMessage {
     return message;
   }
 
-  /** Returns whether the message needs further interpolation of a 'strategy' when printed. */
-  public boolean needsStrategy() {
-    return false;
-  }
-
   /** Creates "Analyzing" status message. */
   public static ActionStatusMessage analysisStrategy(ActionMetadata action) {
     return new ActionStatusMessage(action, "Analyzing");
@@ -57,13 +52,8 @@ public class ActionStatusMessage {
     return new ActionStatusMessage(action, "Scheduling");
   }
 
-  /** Creates "Running (%s)" status message (needs strategy interpolated). */
-  public static ActionStatusMessage runningStrategy(ActionMetadata action) {
-    return new ActionStatusMessage(action, "Running (%s)") {
-      @Override
-      public boolean needsStrategy() {
-        return true;
-      }
-    };
+  /** Creates "Running (strategy)" status message. */
+  public static ActionStatusMessage runningStrategy(ActionMetadata action, String strategy) {
+    return new ActionStatusMessage(action, String.format("Running (%s)", strategy));
   }
 }
diff --git a/src/main/java/com/google/devtools/build/lib/actions/FailAction.java b/src/main/java/com/google/devtools/build/lib/actions/FailAction.java
index 191c657898..da6f599d37 100644
--- a/src/main/java/com/google/devtools/build/lib/actions/FailAction.java
+++ b/src/main/java/com/google/devtools/build/lib/actions/FailAction.java
@@ -62,11 +62,6 @@ public final class FailAction extends AbstractAction {
   }
 
   @Override
-  public String describeStrategy(Executor executor) {
-    return "";
-  }
-
-  @Override
   public String getMnemonic() {
     return "Fail";
   }
diff --git a/src/main/java/com/google/devtools/build/lib/actions/MiddlemanAction.java b/src/main/java/com/google/devtools/build/lib/actions/MiddlemanAction.java
index bc710f09fc..8c25e4d223 100644
--- a/src/main/java/com/google/devtools/build/lib/actions/MiddlemanAction.java
+++ b/src/main/java/com/google/devtools/build/lib/actions/MiddlemanAction.java
@@ -86,11 +86,6 @@ public class MiddlemanAction extends AbstractAction {
   }
 
   @Override
-  public String describeStrategy(Executor executor) {
-    return "";
-  }
-
-  @Override
   public String getMnemonic() {
     return MIDDLEMAN_MNEMONIC;
   }
diff --git a/src/main/java/com/google/devtools/build/lib/actions/ResourceManager.java b/src/main/java/com/google/devtools/build/lib/actions/ResourceManager.java
index c262294a4b..e87e87e697 100644
--- a/src/main/java/com/google/devtools/build/lib/actions/ResourceManager.java
+++ b/src/main/java/com/google/devtools/build/lib/actions/ResourceManager.java
@@ -265,7 +265,7 @@ public class ResourceManager {
   private void acquired(ActionMetadata owner) {
     if (eventBus != null) {
       // Null only in tests.
-      eventBus.post(ActionStatusMessage.runningStrategy(owner));
+      eventBus.post(ActionStatusMessage.runningStrategy(owner, "unknown"));
     }
   }
 
diff --git a/src/main/java/com/google/devtools/build/lib/actions/SpawnActionContext.java b/src/main/java/com/google/devtools/build/lib/actions/SpawnActionContext.java
index cf33786f8c..80ef4a505b 100644
--- a/src/main/java/com/google/devtools/build/lib/actions/SpawnActionContext.java
+++ b/src/main/java/com/google/devtools/build/lib/actions/SpawnActionContext.java
@@ -24,9 +24,6 @@ public interface SpawnActionContext extends Executor.ActionContext {
   void exec(Spawn spawn, ActionExecutionContext actionExecutionContext)
       throws ExecException, InterruptedException;
 
-  /** Returns the locality of running the spawn, i.e., "local". */
-  String strategyLocality(String mnemonic, boolean remotable);
-
   /**
    * This implements a tri-state mode. There are three possible cases: (1) implementations of this
    * class can unconditionally execute spawns locally, (2) they can follow whatever is set for the
diff --git a/src/main/java/com/google/devtools/build/lib/analysis/PseudoAction.java b/src/main/java/com/google/devtools/build/lib/analysis/PseudoAction.java
index 633258b310..c482f2e615 100644
--- a/src/main/java/com/google/devtools/build/lib/analysis/PseudoAction.java
+++ b/src/main/java/com/google/devtools/build/lib/analysis/PseudoAction.java
@@ -52,11 +52,6 @@ public class PseudoAction<InfoType extends MessageLite> extends AbstractAction {
     this.info = info;
   }
 
- @Override
-  public String describeStrategy(Executor executor) {
-    return null;
-  }
-
   @Override
   public void execute(ActionExecutionContext actionExecutionContext)
       throws ActionExecutionException {
diff --git a/src/main/java/com/google/devtools/build/lib/analysis/SymlinkTreeAction.java b/src/main/java/com/google/devtools/build/lib/analysis/SymlinkTreeAction.java
index 7501f09189..17591e0265 100644
--- a/src/main/java/com/google/devtools/build/lib/analysis/SymlinkTreeAction.java
+++ b/src/main/java/com/google/devtools/build/lib/analysis/SymlinkTreeAction.java
@@ -111,11 +111,6 @@ public class SymlinkTreeAction extends AbstractAction {
   }
 
   @Override
-  public String describeStrategy(Executor executor) {
-    return "local"; // Symlink tree is always generated locally.
-  }
-
-  @Override
   public void execute(
       ActionExecutionContext actionExecutionContext)
           throws ActionExecutionException, InterruptedException {
diff --git a/src/main/java/com/google/devtools/build/lib/analysis/actions/AbstractFileWriteAction.java b/src/main/java/com/google/devtools/build/lib/analysis/actions/AbstractFileWriteAction.java
index 7f361a4ade..2c5daad8b0 100644
--- a/src/main/java/com/google/devtools/build/lib/analysis/actions/AbstractFileWriteAction.java
+++ b/src/main/java/com/google/devtools/build/lib/analysis/actions/AbstractFileWriteAction.java
@@ -123,11 +123,6 @@ public abstract class AbstractFileWriteAction extends AbstractAction {
     return true;
   }
 
-  @Override
-  public final String describeStrategy(Executor executor) {
-    return executor.getContext(FileWriteActionContext.class).strategyLocality(this);
-  }
-
   private FileWriteActionContext getStrategy(Executor executor) {
     return executor.getContext(FileWriteActionContext.class);
   }
diff --git a/src/main/java/com/google/devtools/build/lib/analysis/actions/FileWriteActionContext.java b/src/main/java/com/google/devtools/build/lib/analysis/actions/FileWriteActionContext.java
index 4014322fa7..e019fb5826 100644
--- a/src/main/java/com/google/devtools/build/lib/analysis/actions/FileWriteActionContext.java
+++ b/src/main/java/com/google/devtools/build/lib/analysis/actions/FileWriteActionContext.java
@@ -37,8 +37,4 @@ public interface FileWriteActionContext extends ActionContext {
    */
   ResourceSet estimateResourceConsumption(AbstractFileWriteAction action);
 
-  /**
-   * Returns where the action actually runs.
-   */
-  String strategyLocality(AbstractFileWriteAction action);
 }
diff --git a/src/main/java/com/google/devtools/build/lib/analysis/actions/SpawnAction.java b/src/main/java/com/google/devtools/build/lib/analysis/actions/SpawnAction.java
index 251d81a5ca..d648662538 100644
--- a/src/main/java/com/google/devtools/build/lib/analysis/actions/SpawnAction.java
+++ b/src/main/java/com/google/devtools/build/lib/analysis/actions/SpawnAction.java
@@ -400,11 +400,6 @@ public class SpawnAction extends AbstractAction {
     return executionInfo;
   }
 
-  @Override
-  public String describeStrategy(Executor executor) {
-    return getContext(executor).strategyLocality(getMnemonic(), isRemotable());
-  }
-
   protected SpawnActionContext getContext(Executor executor) {
     return executor.getSpawnActionContext(getMnemonic());
   }
diff --git a/src/main/java/com/google/devtools/build/lib/analysis/actions/SymlinkAction.java b/src/main/java/com/google/devtools/build/lib/analysis/actions/SymlinkAction.java
index 255e51d4ec..c6ac8be4bf 100644
--- a/src/main/java/com/google/devtools/build/lib/analysis/actions/SymlinkAction.java
+++ b/src/main/java/com/google/devtools/build/lib/analysis/actions/SymlinkAction.java
@@ -122,9 +122,4 @@ public class SymlinkAction extends AbstractAction {
   protected String getRawProgressMessage() {
     return progressMessage;
   }
-
-  @Override
-  public String describeStrategy(Executor executor) {
-    return "local";
-  }
 }
diff --git a/src/main/java/com/google/devtools/build/lib/bazel/BazelWorkspaceStatusModule.java b/src/main/java/com/google/devtools/build/lib/bazel/BazelWorkspaceStatusModule.java
index 72e7081c20..c47388b6da 100644
--- a/src/main/java/com/google/devtools/build/lib/bazel/BazelWorkspaceStatusModule.java
+++ b/src/main/java/com/google/devtools/build/lib/bazel/BazelWorkspaceStatusModule.java
@@ -102,11 +102,6 @@ public class BazelWorkspaceStatusModule extends BlazeModule {
                   .build();
     }
 
-    @Override
-    public String describeStrategy(Executor executor) {
-      return "";
-    }
-
     private String getAdditionalWorkspaceStatus(ActionExecutionContext actionExecutionContext)
         throws ActionExecutionException {
       try {
diff --git a/src/main/java/com/google/devtools/build/lib/exec/FileWriteStrategy.java b/src/main/java/com/google/devtools/build/lib/exec/FileWriteStrategy.java
index 9c476bc648..1359363607 100644
--- a/src/main/java/com/google/devtools/build/lib/exec/FileWriteStrategy.java
+++ b/src/main/java/com/google/devtools/build/lib/exec/FileWriteStrategy.java
@@ -71,9 +71,4 @@ public final class FileWriteStrategy implements FileWriteActionContext {
   public ResourceSet estimateResourceConsumption(AbstractFileWriteAction action) {
     return action.estimateResourceConsumptionLocal();
   }
-
-  @Override
-  public String strategyLocality(AbstractFileWriteAction action) {
-    return "local";
-  }
 }
diff --git a/src/main/java/com/google/devtools/build/lib/rules/cpp/CppCompileAction.java b/src/main/java/com/google/devtools/build/lib/rules/cpp/CppCompileAction.java
index c908bcda5d..ead89f63e3 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/cpp/CppCompileAction.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/cpp/CppCompileAction.java
@@ -482,11 +482,6 @@ public class CppCompileAction extends AbstractAction implements IncludeScannable
     return cppCompileCommandLine.dotdFile;
   }
 
-  @Override
-  public String describeStrategy(Executor executor) {
-    return executor.getContext(actionContext).strategyLocality();
-  }
-
   @VisibleForTesting
   public CppCompilationContext getContext() {
     return context;
diff --git a/src/main/java/com/google/devtools/build/lib/rules/cpp/CppCompileActionContext.java b/src/main/java/com/google/devtools/build/lib/rules/cpp/CppCompileActionContext.java
index f0e423b37d..fe59f8e68b 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/cpp/CppCompileActionContext.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/cpp/CppCompileActionContext.java
@@ -70,11 +70,6 @@ public interface CppCompileActionContext extends ActionContext {
   ResourceSet estimateResourceConsumption(CppCompileAction action);
 
   /**
-   * Returns where the action actually runs.
-   */
-  String strategyLocality();
-
-  /**
    * Returns whether include scanning needs to be run.
    */
   boolean needsIncludeScanning();
diff --git a/src/main/java/com/google/devtools/build/lib/rules/cpp/CppLinkAction.java b/src/main/java/com/google/devtools/build/lib/rules/cpp/CppLinkAction.java
index c4b240cfb8..95d6379f18 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/cpp/CppLinkAction.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/cpp/CppLinkAction.java
@@ -287,11 +287,6 @@ public final class CppLinkAction extends AbstractAction {
     }
   }
 
-  @Override
-  public String describeStrategy(Executor executor) {
-    return fake ? "fake,local" : executor.getContext(CppLinkActionContext.class).strategyLocality();
-  }
-
   // Don't forget to update FAKE_LINK_GUID if you modify this method.
   @ThreadCompatible
   private void executeFake()
diff --git a/src/main/java/com/google/devtools/build/lib/rules/cpp/CppLinkActionContext.java b/src/main/java/com/google/devtools/build/lib/rules/cpp/CppLinkActionContext.java
index 6e97cfc12a..cf64db187f 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/cpp/CppLinkActionContext.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/cpp/CppLinkActionContext.java
@@ -25,10 +25,6 @@ import com.google.devtools.build.lib.actions.ResourceSet;
  */
 @ActionContextMarker(name = "C++ link")
 public interface CppLinkActionContext extends ActionContext {
-  /**
-   * Returns where the action actually runs.
-   */
-  String strategyLocality();
 
   /**
    * Returns the estimated resource consumption of the action.
diff --git a/src/main/java/com/google/devtools/build/lib/rules/cpp/ExtractInclusionAction.java b/src/main/java/com/google/devtools/build/lib/rules/cpp/ExtractInclusionAction.java
index 36d8d7dc7c..82a3a16f69 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/cpp/ExtractInclusionAction.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/cpp/ExtractInclusionAction.java
@@ -55,11 +55,6 @@ final class ExtractInclusionAction extends AbstractAction {
   }
 
   @Override
-  public String describeStrategy(Executor executor) {
-    return executor.getContext(CppCompileActionContext.class).strategyLocality();
-  }
-
-  @Override
   public String getMnemonic() {
     return "GrepIncludes";
   }
diff --git a/src/main/java/com/google/devtools/build/lib/rules/cpp/FakeCppCompileAction.java b/src/main/java/com/google/devtools/build/lib/rules/cpp/FakeCppCompileAction.java
index b97f481964..b92e61496d 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/cpp/FakeCppCompileAction.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/cpp/FakeCppCompileAction.java
@@ -216,11 +216,6 @@ public class FakeCppCompileAction extends CppCompileAction {
   public String getMnemonic() { return "FakeCppCompile"; }
 
   @Override
-  public String describeStrategy(Executor executor) {
-    return "fake";
-  }
-
-  @Override
   public ResourceSet estimateResourceConsumptionLocal() {
     return ResourceSet.createWithRamCpuIo(/*memoryMb=*/1, /*cpuUsage=*/0.1, /*ioUsage=*/0.0);
   }
diff --git a/src/main/java/com/google/devtools/build/lib/rules/cpp/FdoStubAction.java b/src/main/java/com/google/devtools/build/lib/rules/cpp/FdoStubAction.java
index 169f664780..bee74f7092 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/cpp/FdoStubAction.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/cpp/FdoStubAction.java
@@ -38,11 +38,6 @@ public class FdoStubAction extends AbstractAction {
   }
 
   @Override
-  public String describeStrategy(Executor executor) {
-    return "";
-  }
-
-  @Override
   public void execute(ActionExecutionContext actionExecutionContext) {
   }
 
diff --git a/src/main/java/com/google/devtools/build/lib/rules/cpp/SolibSymlinkAction.java b/src/main/java/com/google/devtools/build/lib/rules/cpp/SolibSymlinkAction.java
index efe9b313e4..2e1dd42375 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/cpp/SolibSymlinkAction.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/cpp/SolibSymlinkAction.java
@@ -109,11 +109,6 @@ public final class SolibSymlinkAction extends AbstractAction {
   public String getMnemonic() { return "SolibSymlink"; }
 
   @Override
-  public String describeStrategy(Executor executor) {
-    return "local";
-  }
-
-  @Override
   protected String getRawProgressMessage() { return null; }
 
   /**
diff --git a/src/main/java/com/google/devtools/build/lib/rules/cpp/SpawnGccStrategy.java b/src/main/java/com/google/devtools/build/lib/rules/cpp/SpawnGccStrategy.java
index 83cd41a6a5..4a97ce0e96 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/cpp/SpawnGccStrategy.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/cpp/SpawnGccStrategy.java
@@ -36,10 +36,6 @@ import java.util.Collection;
   name = {"spawn"}
 )
 public class SpawnGccStrategy implements CppCompileActionContext {
-  @Override
-  public String strategyLocality() {
-    return "spawn";
-  }
 
   @Override
   public boolean needsIncludeScanning() {
diff --git a/src/main/java/com/google/devtools/build/lib/rules/cpp/SpawnLinkStrategy.java b/src/main/java/com/google/devtools/build/lib/rules/cpp/SpawnLinkStrategy.java
index b64c5a7b9c..f9d494be4b 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/cpp/SpawnLinkStrategy.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/cpp/SpawnLinkStrategy.java
@@ -50,11 +50,6 @@ public final class SpawnLinkStrategy implements CppLinkActionContext {
   }
 
   @Override
-  public String strategyLocality() {
-    return "spawn";
-  }
-
-  @Override
   public ResourceSet estimateResourceConsumption(CppLinkAction action) {
     return action.estimateResourceConsumptionLocal();
   }
diff --git a/src/main/java/com/google/devtools/build/lib/rules/java/JavaCompileAction.java b/src/main/java/com/google/devtools/build/lib/rules/java/JavaCompileAction.java
index f1a890877d..a436124a72 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/java/JavaCompileAction.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/java/JavaCompileAction.java
@@ -412,11 +412,6 @@ public class JavaCompileAction extends AbstractAction {
   }
 
   @Override
-  public String describeStrategy(Executor executor) {
-    return getContext(executor).strategyLocality(getMnemonic(), true);
-  }
-
-  @Override
   public ResourceSet estimateResourceConsumption(Executor executor) {
     if (getContext(executor).isRemotable(getMnemonic(), true)) {
       return ResourceSet.ZERO;
diff --git a/src/main/java/com/google/devtools/build/lib/rules/test/ExclusiveTestStrategy.java b/src/main/java/com/google/devtools/build/lib/rules/test/ExclusiveTestStrategy.java
index b3b5fbd67c..8ee7f3efb7 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/test/ExclusiveTestStrategy.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/test/ExclusiveTestStrategy.java
@@ -47,9 +47,4 @@ public class ExclusiveTestStrategy implements TestActionContext {
       Path execRoot, TestRunnerAction action, TestResultData cached) throws IOException {
     return parent.newCachedTestResult(execRoot, action, cached);
   }
-
-  @Override
-  public String strategyLocality(TestRunnerAction testRunnerAction) {
-    return "exclusive";
-  }
 }
diff --git a/src/main/java/com/google/devtools/build/lib/rules/test/StandaloneTestStrategy.java b/src/main/java/com/google/devtools/build/lib/rules/test/StandaloneTestStrategy.java
index 59e752bf3d..1cddbf6791 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/test/StandaloneTestStrategy.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/test/StandaloneTestStrategy.java
@@ -266,9 +266,6 @@ public class StandaloneTestStrategy extends TestStrategy {
   }
 
   @Override
-  public String strategyLocality(TestRunnerAction action) { return "standalone"; }
-
-  @Override
   public TestResult newCachedTestResult(
       Path execRoot, TestRunnerAction action, TestResultData data) {
     return new TestResult(action, data, /*cached*/ true);
diff --git a/src/main/java/com/google/devtools/build/lib/rules/test/TestActionContext.java b/src/main/java/com/google/devtools/build/lib/rules/test/TestActionContext.java
index 75cbc5bf79..68bf3cf9dd 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/test/TestActionContext.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/test/TestActionContext.java
@@ -34,11 +34,6 @@ public interface TestActionContext extends ActionContext {
       ActionExecutionContext actionExecutionContext) throws ExecException, InterruptedException;
 
   /**
-   * String describing where the action will run.
-   */
-  String strategyLocality(TestRunnerAction action);
-
-  /**
    * Creates a cached test result.
    */
   TestResult newCachedTestResult(Path execRoot, TestRunnerAction action, TestResultData cached)
diff --git a/src/main/java/com/google/devtools/build/lib/rules/test/TestRunnerAction.java b/src/main/java/com/google/devtools/build/lib/rules/test/TestRunnerAction.java
index 57ddcf9c56..9f09c90319 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/test/TestRunnerAction.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/test/TestRunnerAction.java
@@ -305,11 +305,6 @@ public class TestRunnerAction extends AbstractAction implements NotifyOnActionCa
     return "Testing " + getTestName();
   }
 
-  @Override
-  public String describeStrategy(Executor executor) {
-    return executor.getContext(TestActionContext.class).strategyLocality(this);
-  }
-
   /**
    * Deletes <b>all</b> possible test outputs.
    *
diff --git a/src/main/java/com/google/devtools/build/lib/rules/test/TestStrategy.java b/src/main/java/com/google/devtools/build/lib/rules/test/TestStrategy.java
index 93585bccf9..3275791cf1 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/test/TestStrategy.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/test/TestStrategy.java
@@ -147,19 +147,6 @@ public abstract class TestStrategy implements TestActionContext {
   public abstract void exec(TestRunnerAction action, ActionExecutionContext actionExecutionContext)
       throws ExecException, InterruptedException;
 
-  @Override
-  public abstract String strategyLocality(TestRunnerAction action);
-
-  /**
-   * Callback for determining the strategy locality.
-   *
-   * @param action the test action
-   * @param localRun whether to run it locally
-   */
-  protected String strategyLocality(TestRunnerAction action, boolean localRun) {
-    return strategyLocality(action);
-  }
-
   /**
    * Returns mutable map of default testing shell environment. By itself it is incomplete and is
    * modified further by the specific test strategy implementations (mostly due to the fact that
diff --git a/src/main/java/com/google/devtools/build/lib/sandbox/LinuxSandboxedStrategy.java b/src/main/java/com/google/devtools/build/lib/sandbox/LinuxSandboxedStrategy.java
index b15744955d..9148014a5e 100644
--- a/src/main/java/com/google/devtools/build/lib/sandbox/LinuxSandboxedStrategy.java
+++ b/src/main/java/com/google/devtools/build/lib/sandbox/LinuxSandboxedStrategy.java
@@ -22,6 +22,7 @@ import com.google.devtools.build.lib.Constants;
 import com.google.devtools.build.lib.actions.ActionExecutionContext;
 import com.google.devtools.build.lib.actions.ActionInput;
 import com.google.devtools.build.lib.actions.ActionInputHelper;
+import com.google.devtools.build.lib.actions.ActionStatusMessage;
 import com.google.devtools.build.lib.actions.Artifact;
 import com.google.devtools.build.lib.actions.EnvironmentalExecException;
 import com.google.devtools.build.lib.actions.ExecException;
@@ -95,20 +96,24 @@ public class LinuxSandboxedStrategy implements SpawnActionContext {
   @Override
   public void exec(Spawn spawn, ActionExecutionContext actionExecutionContext)
       throws ExecException {
-    Executor executor = actionExecutionContext.getExecutor();
-
     // Certain actions can't run remotely or in a sandbox - pass them on to the standalone strategy.
     if (!spawn.isRemotable()) {
       standaloneStrategy.exec(spawn, actionExecutionContext);
       return;
     }
 
+    Executor executor = actionExecutionContext.getExecutor();
+
     if (executor.reportsSubcommands()) {
       executor.reportSubcommand(
           Label.print(spawn.getOwner().getLabel()) + " [" + spawn.getResourceOwner().prettyPrint()
               + "]", spawn.asShellCommand(executor.getExecRoot()));
     }
 
+    executor
+        .getEventBus()
+        .post(ActionStatusMessage.runningStrategy(spawn.getResourceOwner(), "sandbox"));
+
     FileOutErr outErr = actionExecutionContext.getFileOutErr();
 
     // The execId is a unique ID just for this invocation of "exec".
@@ -492,12 +497,12 @@ public class LinuxSandboxedStrategy implements SpawnActionContext {
   }
 
   @Override
-  public String strategyLocality(String mnemonic, boolean remotable) {
-    return "linux-sandboxing";
+  public boolean isRemotable(String mnemonic, boolean remotable) {
+    return false;
   }
 
   @Override
-  public boolean isRemotable(String mnemonic, boolean remotable) {
-    return false;
+  public String toString() {
+    return "sandboxed";
   }
 }
diff --git a/src/main/java/com/google/devtools/build/lib/standalone/StandaloneSpawnStrategy.java b/src/main/java/com/google/devtools/build/lib/standalone/StandaloneSpawnStrategy.java
index b7e345caa9..b2f98a36d5 100644
--- a/src/main/java/com/google/devtools/build/lib/standalone/StandaloneSpawnStrategy.java
+++ b/src/main/java/com/google/devtools/build/lib/standalone/StandaloneSpawnStrategy.java
@@ -15,6 +15,7 @@ package com.google.devtools.build.lib.standalone;
 
 import com.google.common.collect.ImmutableMap;
 import com.google.devtools.build.lib.actions.ActionExecutionContext;
+import com.google.devtools.build.lib.actions.ActionStatusMessage;
 import com.google.devtools.build.lib.actions.ExecException;
 import com.google.devtools.build.lib.actions.ExecutionStrategy;
 import com.google.devtools.build.lib.actions.Executor;
@@ -62,12 +63,17 @@ public class StandaloneSpawnStrategy implements SpawnActionContext {
       ActionExecutionContext actionExecutionContext)
       throws ExecException {
     Executor executor = actionExecutionContext.getExecutor();
+
     if (executor.reportsSubcommands()) {
       executor.reportSubcommand(
           Label.print(spawn.getOwner().getLabel()) + " [" + spawn.getResourceOwner().prettyPrint()
               + "]", spawn.asShellCommand(executor.getExecRoot()));
     }
 
+    executor
+        .getEventBus()
+        .post(ActionStatusMessage.runningStrategy(spawn.getResourceOwner(), "standalone"));
+
     int timeout = -1;
     String timeoutStr = spawn.getExecutionInfo().get("timeout");
     if (timeoutStr != null) {
@@ -125,7 +131,7 @@ public class StandaloneSpawnStrategy implements SpawnActionContext {
   }
 
   @Override
-  public String strategyLocality(String mnemonic, boolean remotable) {
+  public String toString() {
     return "standalone";
   }
 
diff --git a/src/main/java/com/google/devtools/build/lib/worker/WorkerSpawnStrategy.java b/src/main/java/com/google/devtools/build/lib/worker/WorkerSpawnStrategy.java
index 22645109d4..c079a8d941 100644
--- a/src/main/java/com/google/devtools/build/lib/worker/WorkerSpawnStrategy.java
+++ b/src/main/java/com/google/devtools/build/lib/worker/WorkerSpawnStrategy.java
@@ -27,6 +27,7 @@ import com.google.devtools.build.lib.actions.ActionExecutionContext;
 import com.google.devtools.build.lib.actions.ActionInput;
 import com.google.devtools.build.lib.actions.ActionInputFileCache;
 import com.google.devtools.build.lib.actions.ActionInputHelper;
+import com.google.devtools.build.lib.actions.ActionStatusMessage;
 import com.google.devtools.build.lib.actions.ChangedFilesMessage;
 import com.google.devtools.build.lib.actions.ExecException;
 import com.google.devtools.build.lib.actions.ExecutionStrategy;
@@ -138,6 +139,10 @@ final class WorkerSpawnStrategy implements SpawnActionContext {
       return;
     }
 
+    executor
+        .getEventBus()
+        .post(ActionStatusMessage.runningStrategy(spawn.getResourceOwner(), "worker"));
+
     FileOutErr outErr = actionExecutionContext.getFileOutErr();
 
     ImmutableList<String> args = ImmutableList.<String>builder()
@@ -272,7 +277,7 @@ final class WorkerSpawnStrategy implements SpawnActionContext {
   }
 
   @Override
-  public String strategyLocality(String mnemonic, boolean remotable) {
+  public String toString() {
     return "worker";
   }