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/*
* Copyright (c) 2019 Livio, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following
* disclaimer in the documentation and/or other materials provided with the
* distribution.
*
* Neither the name of the Livio Inc. nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
package com.smartdevicelink.managers.file;
import android.content.Context;
import android.content.res.Resources;
import android.net.Uri;
import androidx.annotation.NonNull;
import androidx.annotation.RestrictTo;
import com.smartdevicelink.managers.ISdl;
import com.smartdevicelink.managers.file.filetypes.SdlFile;
import com.smartdevicelink.proxy.rpc.PutFile;
import com.smartdevicelink.util.DebugTool;
import java.io.IOException;
import java.io.InputStream;
import java.lang.ref.WeakReference;
/**
* <strong>FileManager</strong> <br>
*
* Note: This class must be accessed through the SdlManager. Do not instantiate it by itself. <br>
*
* The SDLFileManager uploads files and keeps track of all the uploaded files names during a session. <br>
*
* We need to add the following struct: SDLFile<br>
*
* It is broken down to these areas: <br>
*
* 1. Getters <br>
* 2. Deletion methods <br>
* 3. Uploading Files / Artwork
*/
public class FileManager extends BaseFileManager {
private final WeakReference<Context> context;
/**
* Constructor for FileManager
* @param internalInterface an instance of the ISdl interface that can be used for common SDL operations (sendRpc, addRpcListener, etc)
* @param context an instances of Context interface to global information for application
* @param fileManagerConfig an instance of the FileManagerConfig gives access to artworkRetryCount and fileRetryCount to let us if those file types can be re-upload if they fail
*/
@RestrictTo(RestrictTo.Scope.LIBRARY)
public FileManager(ISdl internalInterface, Context context, FileManagerConfig fileManagerConfig) {
// setup
super(internalInterface, fileManagerConfig);
this.context = new WeakReference<>(context);
}
/**
* Creates and returns a PutFile request that would upload a given SdlFile
* @param file SdlFile with fileName and one of A) fileData, B) Uri, or C) resourceID set
* @return a valid PutFile request if SdlFile contained a fileName and sufficient data
*/
@Override
PutFile createPutFile(@NonNull final SdlFile file){
PutFile putFile = new PutFile();
if(file.getName() == null){
throw new IllegalArgumentException("You must specify an file name in the SdlFile");
}else{
putFile.setSdlFileName(file.getName());
}
if(file.getResourceId() > 0){
// Use resource id to upload file
byte[] contents = contentsOfResource(file.getResourceId());
if(contents != null){
putFile.setFileData(contents);
}else{
throw new IllegalArgumentException("Resource file id was empty");
}
}else if(file.getUri() != null){
// Use URI to upload file
byte[] contents = contentsOfUri(file.getUri());
if(contents != null){
putFile.setFileData(contents);
}else{
throw new IllegalArgumentException("Uri was empty");
}
}else if(file.getFileData() != null){
// Use file data (raw bytes) to upload file
putFile.setFileData(file.getFileData());
}else{
throw new IllegalArgumentException("The SdlFile to upload does " +
"not specify its resourceId, Uri, or file data");
}
if(file.getType() != null){
putFile.setFileType(file.getType());
}
putFile.setPersistentFile(file.isPersistent());
return putFile;
}
/**
* Helper method to take resource files and turn them into byte arrays
* @param resource Resource file id
* @return Resulting byte array
*/
private byte[] contentsOfResource(int resource) {
InputStream is = null;
try {
is = context.get().getResources().openRawResource(resource);
return contentsOfInputStream(is);
} catch (Resources.NotFoundException e) {
DebugTool.logError(TAG, "Can't read from resource", e);
return null;
} finally {
if (is != null) {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
/**
* Helper method to take Uri and turn it into byte array
* @param uri Uri for desired file
* @return Resulting byte array
*/
private byte[] contentsOfUri(Uri uri){
InputStream is = null;
try{
is = context.get().getContentResolver().openInputStream(uri);
return contentsOfInputStream(is);
} catch (IOException e){
DebugTool.logError(TAG, "Can't read from Uri", e);
return null;
} finally {
if (is != null) {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
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