Fix two strict mode warnings.

Bug: 9052555
Change-Id: I86e90488679a78a9f6e901b640025619293765a0

1 files changed, 27 insertions, 14 deletions

diff --git a/java/src/com/android/inputmethod/latin/BinaryDictionaryFileDumper.java b/java/src/com/android/inputmethod/latin/BinaryDictionaryFileDumper.java
index a9b58de44..603e8d30d 100644
--- a/java/src/com/android/inputmethod/latin/BinaryDictionaryFileDumper.java
+++ b/java/src/com/android/inputmethod/latin/BinaryDictionaryFileDumper.java
@@ -32,6 +32,7 @@ import com.android.inputmethod.latin.DictionaryInfoUtils.DictionaryInfo;
 
 import java.io.BufferedInputStream;
 import java.io.BufferedOutputStream;
+import java.io.Closeable;
 import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
@@ -319,20 +320,12 @@ public final class BinaryDictionaryFileDumper {
                 // Try the next method.
             } finally {
                 // Ignore exceptions while closing files.
-                try {
-                    if (null != afd) afd.close();
-                    if (null != inputStream) inputStream.close();
-                    if (null != uncompressedStream) uncompressedStream.close();
-                    if (null != decryptedStream) decryptedStream.close();
-                    if (null != bufferedInputStream) bufferedInputStream.close();
-                } catch (Exception e) {
-                    Log.e(TAG, "Exception while closing a file descriptor", e);
-                }
-                try {
-                    if (null != bufferedOutputStream) bufferedOutputStream.close();
-                } catch (Exception e) {
-                    Log.e(TAG, "Exception while closing a file", e);
-                }
+                closeAssetFileDescriptorAndReportAnyException(afd);
+                closeCloseableAndReportAnyException(inputStream);
+                closeCloseableAndReportAnyException(uncompressedStream);
+                closeCloseableAndReportAnyException(decryptedStream);
+                closeCloseableAndReportAnyException(bufferedInputStream);
+                closeCloseableAndReportAnyException(bufferedOutputStream);
             }
         }
 
@@ -352,6 +345,26 @@ public final class BinaryDictionaryFileDumper {
         }
     }
 
+    // Ideally the two following methods should be merged, but AssetFileDescriptor does not
+    // implement Closeable although it does implement #close(), and Java does not have
+    // structural typing.
+    private static void closeAssetFileDescriptorAndReportAnyException(
+            final AssetFileDescriptor file) {
+        try {
+            if (null != file) file.close();
+        } catch (Exception e) {
+            Log.e(TAG, "Exception while closing a file", e);
+        }
+    }
+
+    private static void closeCloseableAndReportAnyException(final Closeable file) {
+        try {
+            if (null != file) file.close();
+        } catch (Exception e) {
+            Log.e(TAG, "Exception while closing a file", e);
+        }
+    }
+
     /**
      * Queries a content provider for word list data for some locale and cache the returned files
      *