mojo: Utility class to parse .data file.

mojo/android/javatests/src/org/chromium/mojo/bindings/ValidationTestUtil.java

Index: mojo/android/javatests/src/org/chromium/mojo/bindings/ValidationTestUtil.java
diff --git a/mojo/android/javatests/src/org/chromium/mojo/bindings/ValidationTestUtil.java b/mojo/android/javatests/src/org/chromium/mojo/bindings/ValidationTestUtil.java
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+++ b/mojo/android/javatests/src/org/chromium/mojo/bindings/ValidationTestUtil.java
@@ -0,0 +1,68 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.mojo.bindings;
+
+import org.chromium.base.CalledByNative;
+import org.chromium.base.JNINamespace;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+
+/**
+ * Utility class for testing message validation. The file format used to describe a message is
+ * described in The format is described in
+ * mojo/public/cpp/bindings/tests/validation_test_input_parser.h
+ */
+@JNINamespace("mojo::android")
+public class ValidationTestUtil {
+
+    /**
+     * Content of a '.data' file.
+     */
+    public static class Data {
+        private final ByteBuffer mData;
+        private final int mHandlesCount;
+        private final String mErrorMessage;
+
+        public ByteBuffer getData() {
+            return mData;
+        }
+
+        public int getHandlesCount() {
+            return mHandlesCount;
+        }
+
+        public String getErrorMessage() {
+            return mErrorMessage;
+        }
+
+        private Data(ByteBuffer data, int handlesCount, String errorMessage) {
+            this.mData = data;
+            this.mHandlesCount = handlesCount;
+            this.mErrorMessage = errorMessage;
+        }
+    }
+
+    /**
+     * Parse a '.data' file.
+     */
+    public static Data parseData(String dataAsString) {
+        return nativeParseData(dataAsString);
+    }
+
+    private static native Data nativeParseData(String dataAsString);
+
+    @CalledByNative
+    private static Data buildData(ByteBuffer data, int handlesCount, String errorMessage) {
+        ByteBuffer copiedData = null;
+        if (data != null) {
+            copiedData = ByteBuffer.allocateDirect(data.limit());
+            copiedData.order(ByteOrder.nativeOrder());
+            copiedData.put(data);
+            copiedData.flip();
+        }
+        return new Data(copiedData, handlesCount, errorMessage);
+    }
+}