1 files changed, 61 insertions, 0 deletions
diff --git a/java/com/android/voicemail/impl/mail/Base64Body.java b/java/com/android/voicemail/impl/mail/Base64Body.java
new file mode 100644
index 000000000..def94dbb5
--- /dev/null
+++ b/java/com/android/voicemail/impl/mail/Base64Body.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2015 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.voicemail.impl.mail;
+
+import android.util.Base64;
+import android.util.Base64OutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import org.apache.commons.io.IOUtils;
+
+public class Base64Body implements Body {
+  private final InputStream mSource;
+  // Because we consume the input stream, we can only write out once
+  private boolean mAlreadyWritten;
+
+  public Base64Body(InputStream source) {
+    mSource = source;
+  }
+
+  @Override
+  public InputStream getInputStream() throws MessagingException {
+    return mSource;
+  }
+
+  /**
+   * This method consumes the input stream, so can only be called once
+   *
+   * @param out Stream to write to
+   * @throws IllegalStateException If called more than once
+   * @throws IOException
+   * @throws MessagingException
+   */
+  @Override
+  public void writeTo(OutputStream out)
+      throws IllegalStateException, IOException, MessagingException {
+    if (mAlreadyWritten) {
+      throw new IllegalStateException("Base64Body can only be written once");
+    }
+    mAlreadyWritten = true;
+    try {
+      final Base64OutputStream b64out = new Base64OutputStream(out, Base64.DEFAULT);
+      IOUtils.copyLarge(mSource, b64out);
+    } finally {
+      mSource.close();
+    }
+  }
+}