1 files changed, 87 insertions, 0 deletions
diff --git a/java/com/android/voicemail/impl/mail/internet/BinaryTempFileBody.java b/java/com/android/voicemail/impl/mail/internet/BinaryTempFileBody.java
new file mode 100644
index 000000000..753b70f23
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+++ b/java/com/android/voicemail/impl/mail/internet/BinaryTempFileBody.java
@@ -0,0 +1,87 @@
+/*
+ * 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.internet;
+
+import android.util.Base64;
+import android.util.Base64OutputStream;
+import com.android.voicemail.impl.mail.Body;
+import com.android.voicemail.impl.mail.MessagingException;
+import com.android.voicemail.impl.mail.TempDirectory;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.FilterInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import org.apache.commons.io.IOUtils;
+
+/**
+ * A Body that is backed by a temp file. The Body exposes a getOutputStream method that allows the
+ * user to write to the temp file. After the write the body is available via getInputStream and
+ * writeTo one time. After writeTo is called, or the InputStream returned from getInputStream is
+ * closed the file is deleted and the Body should be considered disposed of.
+ */
+public class BinaryTempFileBody implements Body {
+  private File mFile;
+
+  /**
+   * An alternate way to put data into a BinaryTempFileBody is to simply supply an already- created
+   * file. Note that this file will be deleted after it is read.
+   *
+   * @param filePath The file containing the data to be stored on disk temporarily
+   */
+  public void setFile(String filePath) {
+    mFile = new File(filePath);
+  }
+
+  public OutputStream getOutputStream() throws IOException {
+    mFile = File.createTempFile("body", null, TempDirectory.getTempDirectory());
+    mFile.deleteOnExit();
+    return new FileOutputStream(mFile);
+  }
+
+  @Override
+  public InputStream getInputStream() throws MessagingException {
+    try {
+      return new BinaryTempFileBodyInputStream(new FileInputStream(mFile));
+    } catch (IOException ioe) {
+      throw new MessagingException("Unable to open body", ioe);
+    }
+  }
+
+  @Override
+  public void writeTo(OutputStream out) throws IOException, MessagingException {
+    InputStream in = getInputStream();
+    Base64OutputStream base64Out = new Base64OutputStream(out, Base64.CRLF | Base64.NO_CLOSE);
+    IOUtils.copy(in, base64Out);
+    base64Out.close();
+    mFile.delete();
+    in.close();
+  }
+
+  class BinaryTempFileBodyInputStream extends FilterInputStream {
+    public BinaryTempFileBodyInputStream(InputStream in) {
+      super(in);
+    }
+
+    @Override
+    public void close() throws IOException {
+      super.close();
+      mFile.delete();
+    }
+  }
+}