Add a system to easily trace jobs.

app/src/main/java/org/thoughtcrime/securesms/jobs/AttachmentCompressionJob.java

@@ -104,6 +104,11 @@ public final class AttachmentCompressionJob extends BaseJob {
     return KEY;
   }
 
+  @Override
+  protected boolean shouldTrace() {
+    return true;
+  }
+
   @Override
   public void onRun() throws Exception {
     Log.d(TAG, "Running for: " + attachmentId);

app/src/main/java/org/thoughtcrime/securesms/jobs/AttachmentCopyJob.java

@@ -68,6 +68,11 @@ public class AttachmentCopyJob extends BaseJob {
     return KEY;
   }
 
+  @Override
+  protected boolean shouldTrace() {
+    return true;
+  }
+
   @Override
   protected void onRun() throws Exception {
     AttachmentDatabase database = DatabaseFactory.getAttachmentDatabase(context);

app/src/main/java/org/thoughtcrime/securesms/jobs/AttachmentUploadJob.java

@@ -88,6 +88,11 @@ public final class AttachmentUploadJob extends BaseJob {
     return KEY;
   }
 
+  @Override
+  protected boolean shouldTrace() {
+    return true;
+  }
+
   @Override
   public void onRun() throws Exception {
     Data inputData = getInputData();

app/src/main/java/org/thoughtcrime/securesms/jobs/BaseJob.java

@@ -4,6 +4,7 @@ import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
 import org.signal.core.util.logging.Log;
+import org.signal.core.util.tracing.Tracer;
 import org.thoughtcrime.securesms.jobmanager.Data;
 import org.thoughtcrime.securesms.jobmanager.Job;
 import org.thoughtcrime.securesms.jobmanager.JobLogger;
@@ -21,6 +22,10 @@ public abstract class BaseJob extends Job {
 
   @Override
   public @NonNull Result run() {
+    if (shouldTrace()) {
+      Tracer.getInstance().start(getClass().getSimpleName());
+    }
+
     try {
       onRun();
       return Result.success(outputData);
@@ -35,6 +40,10 @@ public abstract class BaseJob extends Job {
         Log.w(TAG, JobLogger.format(this, "Encountered a failing exception."), e);
         return Result.failure();
       }
+    } finally {
+      if (shouldTrace()) {
+        Tracer.getInstance().end(getClass().getSimpleName());
+      }
     }
   }
 
@@ -42,6 +51,13 @@ public abstract class BaseJob extends Job {
 
   protected abstract boolean onShouldRetry(@NonNull Exception e);
 
+  /**
+   * Whether or not the job should be traced with the {@link org.signal.core.util.tracing.Tracer}.
+   */
+  protected boolean shouldTrace() {
+    return false;
+  }
+
   /**
    * If this job is part of a {@link Chain}, data set here will be passed as input data to the next
    * job(s) in the chain.

app/src/main/java/org/thoughtcrime/securesms/jobs/DirectoryRefreshJob.java

@@ -61,6 +61,11 @@ public class DirectoryRefreshJob extends BaseJob {
     return KEY;
   }
 
+  @Override
+  protected boolean shouldTrace() {
+    return true;
+  }
+
   @Override
   public void onRun() throws IOException {
     Log.i(TAG, "DirectoryRefreshJob.onRun()");

app/src/main/java/org/thoughtcrime/securesms/jobs/PushSendJob.java

@@ -108,6 +108,11 @@ public abstract class PushSendJob extends SendJob {
     }
   }
 
+  @Override
+  protected boolean shouldTrace() {
+    return true;
+  }
+
   protected Optional<byte[]> getProfileKey(@NonNull Recipient recipient) {
     if (!recipient.resolve().isSystemContact() && !recipient.resolve().isProfileSharing()) {
       return Optional.absent();

app/src/main/java/org/thoughtcrime/securesms/jobs/RetrieveProfileJob.java

@@ -230,6 +230,11 @@ public class RetrieveProfileJob extends BaseJob {
     return KEY;
   }
 
+  @Override
+  protected boolean shouldTrace() {
+    return true;
+  }
+
   @Override
   public void onRun() throws IOException, RetryLaterException {
     Stopwatch         stopwatch         = new Stopwatch("RetrieveProfile");