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/*
* Copyright (C) 2012 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.motorolamobility.preflighting.core.internal.utils;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import com.motorolamobility.preflighting.core.source.model.PermissionGroups;
public final class MethodPermissionCSVReader
{
private static final String ANDROID_PERMISSION_PREFIX = "android.permission.";
/**
* For tests
* @param args
*/
public static void main(String[] args)
{
File f =
new File(
"C:\\motodev\\motodev\\android\\src\\plugins\\preflighting.core\\files\\method_permission_list_4.0.csv");
try
{
readMapMethodToPermission(new InputStreamReader(new FileInputStream(f)));
}
catch (IOException e)
{
e.printStackTrace();
}
}
/**
* Reads files\method_permission_list.csv and creates a map with
* key - classPackagePath.methodName
* value - permission name (without android.permission) (it can use || to indicate conditions that are optional, that is interchangeable)
* Case there is more than one line for a permission it indicates that it is a && condition
*
* E.g.: If the file have the following declarations
* android.accounts.AccountManager.method1,PERMISSION1
* android.accounts.AccountManager.method1,PERMISSION2||PERMISSION3
*
* It will return the following:
* PERMISSION1 = required
* PERMISSION2, PERMISSION3 = optional (one of them is required)
*
* @param csv
* @return
* @throws IOException
*/
public static Map<String, PermissionGroups> readMapMethodToPermission(
InputStreamReader csvStream) throws IOException
{
Map<String, PermissionGroups> methodToPermission = new HashMap<String, PermissionGroups>();
BufferedReader reader = null;
try
{
reader = new BufferedReader(csvStream);
String line = reader.readLine();
while (line != null)
{
String[] splitAux = line.split(",");
if (splitAux.length >= 2)
{
String classAndMethod = splitAux[0];
String permissionGroupAux = splitAux[1];
PermissionGroups permissionGroups = methodToPermission.get(classAndMethod);
if (permissionGroups == null)
{
//method not included yet - add new entry on map
permissionGroups = new PermissionGroups();
methodToPermission.put(classAndMethod, permissionGroups);
}
if ((permissionGroupAux != null) && permissionGroupAux.contains("||"))
{
//optional permissions - permissions should not contain spaces
String[] optionalPermissions = permissionGroupAux.split("\\|\\|");
for (int i = 0; i < optionalPermissions.length; i++)
{
String optionalPermission = optionalPermissions[i];
optionalPermissions[i] = ANDROID_PERMISSION_PREFIX + optionalPermission;
}
permissionGroups.getOptionalPermissions().addAll(
Arrays.asList(optionalPermissions));
}
else
{
//required permission
permissionGroups.getRequiredPermissions().add(
ANDROID_PERMISSION_PREFIX + permissionGroupAux);
}
}
line = reader.readLine();
}
}
finally
{
if (reader != null)
{
try
{
reader.close();
}
catch (Exception e)
{
//Do Nothing.
}
}
}
return methodToPermission;
}
/**
* Method that prints the mapping into a file.
* Used to check if the mapping is being properly constructed.
* @param methodToPermission
*/
@SuppressWarnings("unused")
private static void saveToFile(Map<String, PermissionGroups> methodToPermission)
{
File f = new File("C:\\methodToPermission.csv");
OutputStreamWriter writer = null;
try
{
writer = new OutputStreamWriter(new FileOutputStream(f));
Set<String> classes = methodToPermission.keySet();
for (String cls : classes)
{
PermissionGroups permissions = methodToPermission.get(cls);
for (String permission : permissions.getRequiredPermissions())
{
writer.append(cls + "," + permission.substring(permission.lastIndexOf('.') + 1)
+ "\n");
}
if (!permissions.getOptionalPermissions().isEmpty())
{
writer.append(cls + ",");
boolean first = true;
for (String permission : permissions.getOptionalPermissions())
{
writer.append(first ? permission.substring(permission.lastIndexOf('.') + 1)
: "||" + permission.substring(permission.lastIndexOf('.') + 1));
first = false;
}
writer.append('\n');
}
}
writer.flush();
}
catch (FileNotFoundException e)
{
e.printStackTrace();
}
catch (IOException e)
{
e.printStackTrace();
}
finally
{
if (writer != null)
{
try
{
writer.close();
}
catch (IOException e)
{
//Do Nothing.
}
}
}
}
}
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