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Diffstat (limited to 'src/org/openintents/openpgp/util/ParcelFileDescriptorUtil.java')
-rw-r--r--src/org/openintents/openpgp/util/ParcelFileDescriptorUtil.java103
1 files changed, 103 insertions, 0 deletions
diff --git a/src/org/openintents/openpgp/util/ParcelFileDescriptorUtil.java b/src/org/openintents/openpgp/util/ParcelFileDescriptorUtil.java
new file mode 100644
index 00000000..58c62110
--- /dev/null
+++ b/src/org/openintents/openpgp/util/ParcelFileDescriptorUtil.java
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
+ * 2013 Flow (http://stackoverflow.com/questions/18212152/transfer-inputstream-to-another-service-across-process-boundaries-with-parcelf)
+ *
+ * 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 org.openintents.openpgp.util;
+
+import android.os.ParcelFileDescriptor;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+public class ParcelFileDescriptorUtil {
+
+ public interface IThreadListener {
+ void onThreadFinished(final Thread thread);
+ }
+
+ public static ParcelFileDescriptor pipeFrom(InputStream inputStream, IThreadListener listener)
+ throws IOException {
+ ParcelFileDescriptor[] pipe = ParcelFileDescriptor.createPipe();
+ ParcelFileDescriptor readSide = pipe[0];
+ ParcelFileDescriptor writeSide = pipe[1];
+
+ // start the transfer thread
+ new TransferThread(inputStream, new ParcelFileDescriptor.AutoCloseOutputStream(writeSide),
+ listener)
+ .start();
+
+ return readSide;
+ }
+
+ public static ParcelFileDescriptor pipeTo(OutputStream outputStream, IThreadListener listener)
+ throws IOException {
+ ParcelFileDescriptor[] pipe = ParcelFileDescriptor.createPipe();
+ ParcelFileDescriptor readSide = pipe[0];
+ ParcelFileDescriptor writeSide = pipe[1];
+
+ // start the transfer thread
+ new TransferThread(new ParcelFileDescriptor.AutoCloseInputStream(readSide), outputStream,
+ listener)
+ .start();
+
+ return writeSide;
+ }
+
+ static class TransferThread extends Thread {
+ final InputStream mIn;
+ final OutputStream mOut;
+ final IThreadListener mListener;
+
+ TransferThread(InputStream in, OutputStream out, IThreadListener listener) {
+ super("ParcelFileDescriptor Transfer Thread");
+ mIn = in;
+ mOut = out;
+ mListener = listener;
+ setDaemon(true);
+ }
+
+ @Override
+ public void run() {
+ byte[] buf = new byte[1024];
+ int len;
+
+ try {
+ while ((len = mIn.read(buf)) > 0) {
+ mOut.write(buf, 0, len);
+ }
+ mOut.flush(); // just to be safe
+ } catch (IOException e) {
+ //Log.e(OpenPgpApi.TAG, "TransferThread" + getId() + ": writing failed", e);
+ } finally {
+ try {
+ mIn.close();
+ } catch (IOException e) {
+ //Log.e(OpenPgpApi.TAG, "TransferThread" + getId(), e);
+ }
+ try {
+ mOut.close();
+ } catch (IOException e) {
+ //Log.e(OpenPgpApi.TAG, "TransferThread" + getId(), e);
+ }
+ }
+ if (mListener != null) {
+ //Log.d(OpenPgpApi.TAG, "TransferThread " + getId() + " finished!");
+ mListener.onThreadFinished(this);
+ }
+ }
+ }
+} \ No newline at end of file