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      1 /*
      2  * Copyright (C) 2013 DroidDriver committers
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package io.appium.droiddriver.util;
     18 
     19 import android.annotation.TargetApi;
     20 import android.os.Build;
     21 import android.util.Log;
     22 
     23 import java.io.BufferedOutputStream;
     24 import java.io.File;
     25 import java.io.FileNotFoundException;
     26 import java.io.FileOutputStream;
     27 
     28 import io.appium.droiddriver.exceptions.DroidDriverException;
     29 
     30 /**
     31  * Internal helper methods for manipulating files.
     32  */
     33 public class FileUtils {
     34   /**
     35    * Opens file at {@code path} to output. If any directories on {@code path} do
     36    * not exist, they will be created. The file will be readable and writable to
     37    * all.
     38    */
     39   @TargetApi(Build.VERSION_CODES.GINGERBREAD)
     40   public static BufferedOutputStream open(String path) throws FileNotFoundException {
     41     File file = getAbsoluteFile(path);
     42 
     43     Logs.log(Log.INFO, "opening file " + file.getAbsolutePath());
     44     BufferedOutputStream stream = new BufferedOutputStream(new FileOutputStream(file));
     45     if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {
     46       file.setReadable(true /* readable */, false/* ownerOnly */);
     47       file.setWritable(true /* readable */, false/* ownerOnly */);
     48     }
     49     return stream;
     50   }
     51 
     52   /**
     53    * Returns a new file constructed using the absolute path of {@code path}.
     54    * Unlike {@link File#getAbsoluteFile()}, default parent is "java.io.tmpdir"
     55    * instead of "user.dir".
     56    * <p>
     57    * If any directories on {@code path} do not exist, they will be created.
     58    */
     59   public static File getAbsoluteFile(String path) {
     60     File file = new File(path);
     61     if (!file.isAbsolute()) {
     62       file = new File(System.getProperty("java.io.tmpdir"), path);
     63     }
     64     mkdirs(file.getParentFile());
     65     return file;
     66   }
     67 
     68   @TargetApi(Build.VERSION_CODES.GINGERBREAD)
     69   private static void mkdirs(File dir) {
     70     if (dir == null || dir.exists()) {
     71       return;
     72     }
     73 
     74     mkdirs(dir.getParentFile());
     75     if (!dir.mkdir()) {
     76       throw new DroidDriverException("failed to mkdir " + dir);
     77     }
     78     if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {
     79       dir.setReadable(true /* readable */, false/* ownerOnly */);
     80       dir.setWritable(true /* readable */, false/* ownerOnly */);
     81       dir.setExecutable(true /* executable */, false/* ownerOnly */);
     82     }
     83   }
     84 }
     85