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package org.thialfihar.android.apg;
import java.io.ByteArrayOutputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import org.thialfihar.android.apg.Apg.GeneralException;
import android.content.Context;
import android.os.Environment;
public class DataDestination {
private String mStreamFilename;
private String mFilename;
private int mMode = Id.mode.undefined;
public DataDestination() {
}
public void setMode(int mode) {
mMode = mode;
}
public void setFilename(String filename) {
mFilename = filename;
}
public String getStreamFilename() {
return mStreamFilename;
}
protected OutputStream getOutputStream(Context context)
throws Apg.GeneralException, FileNotFoundException, IOException {
OutputStream out = null;
mStreamFilename = null;
switch (mMode) {
case Id.mode.stream: {
try {
while (true) {
mStreamFilename = Apg.generateRandomString(32);
if (mStreamFilename == null) {
throw new Apg.GeneralException("couldn't generate random file name");
}
context.openFileInput(mStreamFilename).close();
}
} catch (FileNotFoundException e) {
// found a name that isn't used yet
}
out = context.openFileOutput(mStreamFilename, Context.MODE_PRIVATE);
break;
}
case Id.mode.byte_array: {
out = new ByteArrayOutputStream();
break;
}
case Id.mode.file: {
if (mFilename.startsWith(Environment.getExternalStorageDirectory().getAbsolutePath())) {
if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
throw new GeneralException(context.getString(R.string.error_externalStorageNotReady));
}
}
out = new FileOutputStream(mFilename);
break;
}
default: {
break;
}
}
return out;
}
}
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