Added a way to provide the database files to the DatabasePeerManager module.

stetho/src/main/java/com/facebook/stetho/Stetho.java

@@ -1,5 +1,6 @@
 package com.facebook.stetho;
 
+import com.facebook.stetho.inspector.database.DefaultDatabaseFilesProvider;
 import javax.annotation.Nullable;
 
 import java.io.IOException;
@@ -115,7 +116,7 @@ public Iterable<ChromeDevtoolsDomain> get() {
         modules.add(new Runtime());
         modules.add(new Worker());
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
-          modules.add(new Database(context));
+          modules.add(new Database(context, new DefaultDatabaseFilesProvider(context)));
         }
         return modules;
       }

stetho/src/main/java/com/facebook/stetho/inspector/database/DatabaseFilesProvider.java

@@ -0,0 +1,16 @@
+package com.facebook.stetho.inspector.database;
+
+import java.io.File;
+import java.util.List;
+
+/**
+ * Provides a {@link List} of database files.
+ */
+public interface DatabaseFilesProvider {
+
+  /**
+   * Returns a {@link List} of database files.
+   */
+  List<File> getDatabaseFiles();
+
+}

stetho/src/main/java/com/facebook/stetho/inspector/database/DatabasePeerManager.java

@@ -2,14 +2,14 @@
 
 package com.facebook.stetho.inspector.database;
 
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Set;
 import javax.annotation.concurrent.ThreadSafe;
 
 import java.io.File;
 import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.HashSet;
 import java.util.List;
-import java.util.Set;
 
 import android.content.Context;
 import android.database.Cursor;
@@ -30,18 +30,39 @@ public class DatabasePeerManager extends ChromePeerManager {
   };
 
   private final Context mContext;
+  private final DatabaseFilesProvider mDatabaseFilesProvider;
 
+  /**
+   * Constructs the object with a {@link DatabaseFilesProvider} that supplies the database files
+   * from {@link Context#databaseList()}.
+   *
+   * @param context the context
+   * @deprecated use the other {@linkplain DatabasePeerManager#DatabasePeerManager(Context,
+   * DatabaseFilesProvider) constructor} and pass in the {@linkplain DefaultDatabaseFilesProvider
+   * default provider}.
+   */
+  @Deprecated
   public DatabasePeerManager(Context context) {
+    this(context, new DefaultDatabaseFilesProvider(context));
+  }
+
+  /**
+   * @param context the context
+   * @param databaseFilesProvider a database file name provider
+   */
+  public DatabasePeerManager(Context context, DatabaseFilesProvider databaseFilesProvider) {
     mContext = context;
+    mDatabaseFilesProvider = databaseFilesProvider;
     setListener(mPeerRegistrationListener);
   }
 
   private void bootstrapNewPeer(JsonRpcPeer peer) {
-    Iterable<String> tidiedList = tidyDatabaseList(mContext.databaseList());
-    for (String databaseName : tidiedList) {
+    List<File> potentialDatabaseFiles = mDatabaseFilesProvider.getDatabaseFiles();
+    Iterable<File> tidiedList = tidyDatabaseList(potentialDatabaseFiles);
+    for (File database : tidiedList) {
       Database.DatabaseObject databaseParams = new Database.DatabaseObject();
-      databaseParams.id = databaseName;
-      databaseParams.name = databaseName;
+      databaseParams.id = database.getPath();
+      databaseParams.name = database.getName();
       databaseParams.domain = mContext.getPackageName();
       databaseParams.version = "N/A";
       Database.AddDatabaseEvent eventParams = new Database.AddDatabaseEvent();
@@ -56,17 +77,18 @@ private void bootstrapNewPeer(JsonRpcPeer peer) {
    * that this only removes the database if it is true that it shadows another database lacking
    * the uninteresting suffix.
    *
-   * @param databaseFilenames Raw list of database filenames.
+   * @param databaseFiles Raw list of database files.
    * @return Tidied list with shadow databases removed.
    */
   // @VisibleForTesting
-  static List<String> tidyDatabaseList(String[] databaseFilenames) {
-    Set<String> originalAsSet = new HashSet<String>(Arrays.asList(databaseFilenames));
-    List<String> tidiedList = new ArrayList<String>();
-    for (String databaseFilename : databaseFilenames) {
+  static List<File> tidyDatabaseList(List<File> databaseFiles) {
+    Set<File> originalAsSet = new HashSet<File>(databaseFiles);
+    List<File> tidiedList = new ArrayList<File>();
+    for (File databaseFile : databaseFiles) {
+      String databaseFilename = databaseFile.getPath();
       String sansSuffix = removeSuffix(databaseFilename, UNINTERESTING_FILENAME_SUFFIXES);
-      if (sansSuffix.equals(databaseFilename) || !originalAsSet.contains(sansSuffix)) {
-        tidiedList.add(databaseFilename);
+      if (sansSuffix.equals(databaseFilename) || !originalAsSet.contains(new File(sansSuffix))) {
+        tidiedList.add(databaseFile);
       }
     }
     return tidiedList;

stetho/src/main/java/com/facebook/stetho/inspector/database/DefaultDatabaseFilesProvider.java

@@ -0,0 +1,27 @@
+package com.facebook.stetho.inspector.database;
+
+import android.content.Context;
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Provides the results of {@link Context#databaseList()}.
+ */
+public final class DefaultDatabaseFilesProvider implements DatabaseFilesProvider {
+
+  private final Context mContext;
+
+  public DefaultDatabaseFilesProvider(Context context) {
+    mContext = context;
+  }
+
+  @Override
+  public List<File> getDatabaseFiles() {
+    List<File> databaseFiles = new ArrayList<File>();
+    for (String filename : mContext.databaseList()) {
+      databaseFiles.add(new File(filename));
+    }
+    return databaseFiles;
+  }
+}

stetho/src/main/java/com/facebook/stetho/inspector/protocol/module/Database.java

@@ -2,6 +2,7 @@
 
 package com.facebook.stetho.inspector.protocol.module;
 
+import com.facebook.stetho.inspector.database.DatabaseFilesProvider;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
@@ -38,11 +39,25 @@ public class Database implements ChromeDevtoolsDomain {
   private final DatabasePeerManager mDatabasePeerManager;
   private final ObjectMapper mObjectMapper;
 
+  /**
+   * Constructs the object with the default {@link DatabasePeerManager}.
+   * @param context the context
+   */
+  @Deprecated
   public Database(Context context) {
     mDatabasePeerManager = new DatabasePeerManager(context);
     mObjectMapper = new ObjectMapper();
   }
 
+  /**
+   * @param context the context
+   * @param databaseFilesProvider a database files provider
+   */
+  public Database(Context context, DatabaseFilesProvider databaseFilesProvider) {
+    mDatabasePeerManager = new DatabasePeerManager(context, databaseFilesProvider);
+    mObjectMapper = new ObjectMapper();
+  }
+
   @ChromeDevtoolsMethod
   public void enable(JsonRpcPeer peer, JSONObject params) {
     mDatabasePeerManager.addPeer(peer);

stetho/src/test/java/com/facebook/stetho/inspector/database/DatabasePeerManagerTest.java

@@ -2,6 +2,8 @@
 
 package com.facebook.stetho.inspector.database;
 
+import java.io.File;
+import java.util.Arrays;
 import java.util.List;
 
 import org.junit.Test;
@@ -11,19 +13,19 @@
 public class DatabasePeerManagerTest {
   @Test
   public void testTidyDatabaseList() {
-     String[] databases = {
-         "foo.db", "foo.db-journal",
-         "bar.db", "bar.db-journal", "bar.db-uid",
-         "baz.db", "baz.db-somethingelse",
-         "dangling.db-journal",
-     };
-     String[] expected = {
-         "foo.db",
-         "bar.db",
-         "baz.db", "baz.db-somethingelse",
-         "dangling.db-journal",
-     };
-     List<String> tidied = DatabasePeerManager.tidyDatabaseList(databases);
-     assertArrayEquals(expected, tidied.toArray());
+    File[] databases = {
+        new File("foo.db"), new File("foo.db-journal"),
+        new File("bar.db"), new File("bar.db-journal"), new File( "bar.db-uid"),
+        new File("baz.db"), new File("baz.db-somethingelse"),
+        new File("dangling.db-journal"),
+    };
+    File[] expected = {
+        new File( "foo.db"),
+        new File("bar.db"),
+        new File("baz.db"), new File("baz.db-somethingelse"),
+        new File("dangling.db-journal")
+    };
+    List<File> tidied = DatabasePeerManager.tidyDatabaseList(Arrays.asList(databases));
+    assertArrayEquals(expected, tidied.toArray());
   }
 }