Bug 718238 - Part 5: allow access to the tracked GUIDs in RepositorySession. r=nalexander

mobile/android/base/sync/repositories/HashSetStoreTracker.java

@@ -5,6 +5,7 @@
 package org.mozilla.gecko.sync.repositories;
 
 import java.util.HashSet;
+import java.util.Iterator;
 
 import org.mozilla.gecko.sync.repositories.domain.Record;
 
@@ -52,4 +53,9 @@ public class HashSetStoreTracker implements StoreTracker {
       }
     };
   }
+
+  @Override
+  public Iterator<String> recordsTrackedForExclusion() {
+    return this.guids.iterator();
+  }
 }

mobile/android/base/sync/repositories/RepositorySession.java

@@ -38,6 +38,8 @@
 
 package org.mozilla.gecko.sync.repositories;
 
+import java.util.ArrayList;
+import java.util.Iterator;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 
@@ -355,4 +357,9 @@ public abstract class RepositorySession {
 
   protected synchronized void untrackRecord(Record record) {
   }
+
+  // Ah, Java. You wretched creature.
+  public Iterator<String> getTrackedRecordIDs() {
+    return new ArrayList<String>().iterator();
+  }
 }

mobile/android/base/sync/repositories/StoreTracker.java

@@ -4,6 +4,8 @@
 
 package org.mozilla.gecko.sync.repositories;
 
+import java.util.Iterator;
+
 /**
  * Our hacky version of transactional semantics. The goal is to prevent
  * the following situation:
@@ -75,4 +77,6 @@ public interface StoreTracker {
   public boolean untrackStoredForExclusion(String guid);
 
   public RecordFilter getFilter();
+
+  public Iterator<String> recordsTrackedForExclusion();
 }

mobile/android/base/sync/repositories/StoreTrackingRepositorySession.java

@@ -4,6 +4,8 @@
 
 package org.mozilla.gecko.sync.repositories;
 
+import java.util.Iterator;
+
 import org.mozilla.gecko.sync.Logger;
 import org.mozilla.gecko.sync.repositories.delegates.RepositorySessionBeginDelegate;
 import org.mozilla.gecko.sync.repositories.delegates.RepositorySessionFinishDelegate;
@@ -57,6 +59,14 @@ public abstract class StoreTrackingRepositorySession extends RepositorySession {
     this.storeTracker.untrackStoredForExclusion(record.guid);
   }
 
+  @Override
+  public Iterator<String> getTrackedRecordIDs() {
+    if (this.storeTracker == null) {
+      throw new IllegalStateException("Store tracker not yet initialized!");
+    }
+    return this.storeTracker.recordsTrackedForExclusion();
+  }
+
   @Override
   public void abort(RepositorySessionFinishDelegate delegate) {
     this.storeTracker = null;