feat: Improve Logging

google-cloud-firestore/src/main/java/com/google/cloud/firestore/CollectionGroup.java

@@ -174,4 +174,10 @@ private void consumePartitions(
     }
     consumer.apply(new QueryPartition(partitionQuery, lastCursor, null));
   }
+
+  @SuppressWarnings("MethodDoesntCallSuperMethod")
+  @Override
+  public String toString() {
+    return String.format("CollectionGroup{partitionQuery=%s, options=%s}", partitionQuery, options);
+  }
 }

google-cloud-firestore/src/main/java/com/google/cloud/firestore/DocumentChange.java

@@ -114,4 +114,11 @@ public boolean equals(Object obj) {
   public int hashCode() {
     return Objects.hash(type, document, oldIndex, newIndex);
   }
+
+  @Override
+  public String toString() {
+    return String.format(
+        "DocumentChange{type=%s, document=%s, oldIndex=%d, newIndex=%d}",
+        type, document, oldIndex, newIndex);
+  }
 }

google-cloud-firestore/src/main/java/com/google/cloud/firestore/GenericQuerySnapshot.java

@@ -162,4 +162,11 @@ public boolean equals(Object o) {
   public int hashCode() {
     return Objects.hash(query, this.getDocumentChanges(), this.getDocuments());
   }
+
+  @Override
+  public String toString() {
+    return String.format(
+        "%s{query=%s, readTime=%s, documentChanges=%s, documents=%s}",
+        getClass().getSimpleName(), query, readTime, documentChanges, documents);
+  }
 }

google-cloud-firestore/src/main/java/com/google/cloud/firestore/SilenceableBidiStream.java

@@ -45,11 +45,11 @@
  */
 final class SilenceableBidiStream<RequestT, ResponseT>
     implements BidiStreamObserver<RequestT, ResponseT> {
+  private static final Logger LOGGER = Logger.getLogger(SilenceableBidiStream.class.getName());
 
   private final ClientStream<RequestT> stream;
   private final BidiStreamObserver<RequestT, ResponseT> delegate;
   private boolean silence = false;
-  private static final Logger LOGGER = Logger.getLogger(Watch.class.getName());
 
   SilenceableBidiStream(
       BidiStreamObserver<RequestT, ResponseT> responseObserverT,
@@ -63,17 +63,17 @@ public boolean isSilenced() {
   }
 
   public void send(RequestT request) {
-    LOGGER.info(stream.toString());
+    LOGGER.fine(stream.toString());
     stream.send(request);
   }
 
   public void closeSend() {
-    LOGGER.info(stream::toString);
+    LOGGER.fine(stream::toString);
     stream.closeSend();
   }
 
   public void closeSendAndSilence() {
-    LOGGER.info(stream::toString);
+    LOGGER.fine(stream::toString);
     silence = true;
     stream.closeSend();
   }

google-cloud-firestore/src/main/java/com/google/cloud/firestore/StreamableQuery.java

@@ -397,4 +397,9 @@ private boolean isRetryableError(Throwable throwable, Set<StatusCode.Code> retry
     }
     return false;
   }
+
+  @Override
+  public String toString() {
+    return String.format("%s{options=%s}", getClass().getSimpleName(), options);
+  }
 }

google-cloud-firestore/src/main/java/com/google/cloud/firestore/VectorQuery.java

@@ -171,6 +171,14 @@ VectorQuerySnapshot createSnaphot(
     return VectorQuerySnapshot.withDocuments(this, readTime, documents);
   }
 
+  @SuppressWarnings("MethodDoesntCallSuperMethod")
+  @Override
+  public String toString() {
+    return String.format(
+        "VectorQuery{query=%s, vectorField=%s, queryVector=%s, limit=%d, distanceMeasure=%s, options=%s, options=%s}",
+        query, vectorField, queryVector, limit, distanceMeasure, options, options);
+  }
+
   /**
    * The distance measure to use when comparing vectors in a {@link VectorQuery}.
    *

google-cloud-firestore/src/main/java/com/google/cloud/firestore/VectorQueryOptions.java

@@ -148,6 +148,13 @@ public boolean equals(Object obj) {
         && Objects.equals(distanceThreshold, otherOptions.distanceThreshold);
   }
 
+  @Override
+  public String toString() {
+    return String.format(
+        "VectorQueryOptions{distanceResultField=%s, distanceThreshold=%s}",
+        distanceResultField, distanceThreshold);
+  }
+
   /** Default VectorQueryOptions instance. */
   private static VectorQueryOptions DEFAULT = newBuilder().build();
 

google-cloud-firestore/src/main/java/com/google/cloud/firestore/VectorValue.java

@@ -76,4 +76,9 @@ MapValue toProto() {
   int size() {
     return this.values.length;
   }
+
+  @Override
+  public String toString() {
+    return String.format("VectorValue{values=%s}", Arrays.toString(values));
+  }
 }

google-cloud-firestore/src/main/java/com/google/cloud/firestore/Watch.java

@@ -60,6 +60,8 @@
  * synchronization.
  */
 final class Watch implements BidiStreamObserver<ListenRequest, ListenResponse> {
+  private static final Logger LOGGER = Logger.getLogger(Watch.class.getName());
+
   /**
    * Target ID used by watch. Watch uses a fixed target id since we only support one target per
    * stream. The actual target ID we use is arbitrary.
@@ -115,8 +117,6 @@ static class ChangeSet {
     List<QueryDocumentSnapshot> updates = new ArrayList<>();
   }
 
-  private static final Logger LOGGER = Logger.getLogger(Watch.class.getName());
-
   /**
    * @param firestore The Firestore Database client.
    * @param query The query that is used to order the document snapshots returned by this watch.
@@ -474,7 +474,7 @@ private void pushSnapshot(final Timestamp readTime, ByteString nextResumeToken)
     if (!hasPushed || !changes.isEmpty()) {
       final QuerySnapshot querySnapshot =
           QuerySnapshot.withChanges(query, readTime, documentSet, changes);
-      LOGGER.info(querySnapshot.toString());
+      LOGGER.fine(querySnapshot.toString());
       userCallbackExecutor.execute(() -> listener.onEvent(querySnapshot, null));
       hasPushed = true;
     }