1 files changed, 56 insertions, 0 deletions
diff --git a/tools/tradefed-host/src/com/android/afwtest/tradefed/utils/StreamDiscarder.java b/tools/tradefed-host/src/com/android/afwtest/tradefed/utils/StreamDiscarder.java
new file mode 100644
index 0000000..dd4191c
--- /dev/null
+++ b/tools/tradefed-host/src/com/android/afwtest/tradefed/utils/StreamDiscarder.java
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.afwtest.tradefed.utils;
+
+import com.android.tradefed.log.LogUtil.CLog;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+/**
+ * {@link Runnable} that reads and discards data from specified stream.
+ */
+public final class StreamDiscarder implements Runnable {
+
+    private static final int BATCH_SIZE = 1024;
+
+    private final InputStream mStream;
+    private final byte[] buffer;
+
+    /**
+     * Constructs {@link StreamDiscarder} instance.
+     *
+     * @param is {@link InputStream} to read and discard data from.
+     */
+    public StreamDiscarder(InputStream is) {
+        mStream = is;
+        buffer = new byte[BATCH_SIZE];
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    @SuppressWarnings("StatementWithEmptyBody")
+    public void run() {
+        try {
+            while (!Thread.interrupted() && mStream.read(buffer) > 0) {}
+        } catch (IOException e) {
+            CLog.e(e);
+        }
+    }
+}