/*
|
*
|
* * Copyright (C) 2019 Amit Shekhar
|
* * Copyright (C) 2011 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.amitshekhar.utils;
|
|
import android.content.res.AssetManager;
|
import android.text.TextUtils;
|
import android.util.Pair;
|
|
import java.io.ByteArrayOutputStream;
|
import java.io.File;
|
import java.io.FileInputStream;
|
import java.io.FileNotFoundException;
|
import java.io.IOException;
|
import java.io.InputStream;
|
import java.util.HashMap;
|
|
/**
|
* Created by amitshekhar on 06/02/17.
|
*/
|
public class Utils {
|
private static final String TAG = "Utils";
|
|
private Utils() {
|
// This class in not publicly instantiable
|
}
|
|
public static String detectMimeType(String fileName) {
|
if (TextUtils.isEmpty(fileName)) {
|
return null;
|
} else if (fileName.endsWith(".html")) {
|
return "text/html";
|
} else if (fileName.endsWith(".js")) {
|
return "application/javascript";
|
} else if (fileName.endsWith(".css")) {
|
return "text/css";
|
} else {
|
return "application/octet-stream";
|
}
|
}
|
|
public static byte[] loadContent(String fileName, AssetManager assetManager) throws IOException {
|
InputStream input = null;
|
try {
|
ByteArrayOutputStream output = new ByteArrayOutputStream();
|
input = assetManager.open(fileName);
|
byte[] buffer = new byte[1024];
|
int size;
|
while (-1 != (size = input.read(buffer))) {
|
output.write(buffer, 0, size);
|
}
|
output.flush();
|
return output.toByteArray();
|
} catch (FileNotFoundException e) {
|
return null;
|
} finally {
|
try {
|
if (null != input) {
|
input.close();
|
}
|
} catch (Exception e) {
|
e.printStackTrace();
|
}
|
}
|
}
|
|
public static byte[] getDatabase(String selectedDatabase, HashMap<String, Pair<File, String>> databaseFiles) {
|
if (TextUtils.isEmpty(selectedDatabase) || !databaseFiles.containsKey(selectedDatabase)) {
|
return null;
|
}
|
byte[] byteArray = new byte[0];
|
try {
|
File file = databaseFiles.get(selectedDatabase).first;
|
byteArray = null;
|
try {
|
InputStream inputStream = new FileInputStream(file);
|
ByteArrayOutputStream bos = new ByteArrayOutputStream();
|
byte[] b = new byte[(int) file.length()];
|
int bytesRead;
|
while ((bytesRead = inputStream.read(b)) != -1) {
|
bos.write(b, 0, bytesRead);
|
}
|
byteArray = bos.toByteArray();
|
} catch (IOException e) {
|
System1.out.println("Utils.getDatabase " + e.getMessage());
|
}
|
} catch (Exception e) {
|
e.printStackTrace();
|
}
|
return byteArray;
|
}
|
}
|