Add RestoreFileHelper, BackupDataInput, and add java wrappers for the methods on BackupDataOutput.

1 files changed, 22 insertions, 0 deletions

diff --git a/core/java/android/backup/BackupDataOutput.java b/core/java/android/backup/BackupDataOutput.java
index 25ae15b..1348d81 100644
--- a/core/java/android/backup/BackupDataOutput.java
+++ b/core/java/android/backup/BackupDataOutput.java
@@ -19,6 +19,7 @@ package android.backup;
 import android.content.Context;
 
 import java.io.FileDescriptor;
+import java.io.IOException;
 
 /** @hide */
 public class BackupDataOutput {
@@ -37,6 +38,24 @@ public class BackupDataOutput {
         }
     }
 
+    public int writeEntityHeader(String key, int dataSize) throws IOException {
+        int result = writeEntityHeader_native(mBackupWriter, key, dataSize);
+        if (result >= 0) {
+            return result;
+        } else {
+            throw new IOException("result=0x" + Integer.toHexString(result));
+        }
+    }
+
+    public int writeEntityData(byte[] data, int size) throws IOException {
+        int result = writeEntityData_native(mBackupWriter, data, size);
+        if (result >= 0) {
+            return result;
+        } else {
+            throw new IOException("result=0x" + Integer.toHexString(result));
+        }
+    }
+
     protected void finalize() throws Throwable {
         try {
             dtor(mBackupWriter);
@@ -47,5 +66,8 @@ public class BackupDataOutput {
         
     private native static int ctor(FileDescriptor fd);
     private native static void dtor(int mBackupWriter);
+
+    private native static int writeEntityHeader_native(int mBackupWriter, String key, int dataSize);
+    private native static int writeEntityData_native(int mBackupWriter, byte[] data, int size);
 }