Example usage for java.io File canWrite

Introduction

In this page you can find the example usage for java.io File canWrite.

Prototype

public boolean canWrite()

Source Link

Document

Tests whether the application can modify the file denoted by this abstract pathname.

Usage

From source file:Main.java

public static boolean isValidRoot(String root) {
    if (TextUtils.isEmpty(root))
        return false;
    File rootFile = new File(root);
    return rootFile.exists() && rootFile.canRead() && rootFile.canWrite();
}

From source file:Main.java

/**
 * Get a usable cache directory (external if available, internal otherwise)
 *
 * @param context The {@link android.content.Context} to use
 * @param uniqueName A unique directory name to append to the cache
 *            directory/*from  w w w . ja va 2 s  . co  m*/
 * @return The cache directory
 */
public static File getCacheDir(final Context context, final String uniqueName) {
    File cachePath = context.getExternalCacheDir();
    if (cachePath == null || !cachePath.canWrite()) {
        cachePath = context.getCacheDir();
    }
    File cacheDir = new File(cachePath, uniqueName);
    if (!cacheDir.exists()) {
        cacheDir.mkdirs();
    }
    if (!cacheDir.canWrite()) {
        cacheDir.setWritable(true);
    }
    return cacheDir;
}

From source file:Main.java

/**
 * Get the application folder on the SD Card. Create it if not present.
 * @return The application folder./* w ww. j a  va 2s .  c  om*/
 */
public static File getApplicationFolder() {
    File root = Environment.getExternalStorageDirectory();
    if (root.canWrite()) {

        File folder = new File(root, APPLICATION_FOLDER);

        if (!folder.exists()) {
            folder.mkdir();
        }

        return folder;

    } else {
        return null;
    }
}

From source file:Main.java

public static boolean sdCardIsAvailable() {
    if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
        File sd = new File(Environment.getExternalStorageDirectory().getPath());
        return sd.canWrite();
    } else/*from   w  w w .j  av  a 2 s  .co m*/
        return false;
}

From source file:eu.ggnet.dwoss.util.TempUtil.java

private static File tryPath(File path, String subPath) {
    if (path.isDirectory() && path.canWrite()) {
        File outputPath = new File(path, subPath);
        if (!outputPath.exists()) {
            if (!outputPath.mkdirs()) {
                return null;
            }//w w  w  .  ja v a2s  .  c om
        } else if (!(outputPath.isDirectory() && outputPath.canWrite())) {
            return null;
        }
        return outputPath;
    }
    return null;
}

From source file:Main.java

public static boolean isExternalStorageWriteable() {
    boolean writealbe = false;
    long start = System.currentTimeMillis();
    if (TextUtils.equals(Environment.MEDIA_MOUNTED, Environment.getExternalStorageState())) {
        File esd = Environment.getExternalStorageDirectory();
        if (esd.exists() && esd.canWrite()) {
            File file = new File(esd, ".696E5309-E4A7-27C0-A787-0B2CEBF1F1AB");
            if (file.exists()) {
                writealbe = true;/*from  www.j ava 2 s . c o  m*/
            } else {
                try {
                    writealbe = file.createNewFile();
                } catch (IOException e) {
                    Log.w(TAG, "isExternalStorageWriteable() can't create test file.");
                }
            }
        }
    }
    long end = System.currentTimeMillis();
    Log.i(TAG, "Utility.isExternalStorageWriteable(" + writealbe + ") cost " + (end - start) + "ms.");
    return writealbe;
}

From source file:Main.java

public static String[] getSecondaryDirs() {
    List<String> ret = new ArrayList<String>();
    String secondaryStorageString = System.getenv("SECONDARY_STORAGE");
    if (secondaryStorageString != null && !secondaryStorageString.trim().isEmpty()) {
        String[] dirs = secondaryStorageString.split(":");

        for (String dir : dirs) {
            File file = new File(dir);
            if (file.isDirectory() && file.canWrite()) {
                ret.add(dir);//w  ww .j a v  a  2 s  .c o  m
            }
        }

        if (ret.isEmpty())
            return null;
        else
            return ret.toArray(new String[ret.size()]);

    } else {
        return null;
    }
}

From source file:Main.java

public static File getTempDir() {
    File ext = Environment.getExternalStorageDirectory();
    File tempDir = new File(ext, "aquery/temp");
    tempDir.mkdirs();/*from  w  w  w. j  ava  2  s.c om*/
    if (!tempDir.exists() || !tempDir.canWrite()) {
        return null;
    }
    return tempDir;
}

From source file:Main.java

private static String getDirPath(Context context) {
    String dirPath = "";
    File photoDir = null;//w ww.ja  v a  2s .c  o  m
    File extStorageDir = Environment.getExternalStorageDirectory();
    if (extStorageDir.canWrite()) {
        photoDir = new File(extStorageDir.getPath() + "/" + context.getPackageName());
    }
    if (photoDir != null) {
        if (!photoDir.exists()) {
            photoDir.mkdirs();
        }
        if (photoDir.canWrite()) {
            dirPath = photoDir.getPath();
        }
    }
    return dirPath;
}

From source file:MakeDirectories.java

private static void fileData(File f) {
    System.out.println("Absolute path: " + f.getAbsolutePath() + "\n Can read: " + f.canRead()
            + "\n Can write: " + f.canWrite() + "\n getName: " + f.getName() + "\n getParent: " + f.getParent()
            + "\n getPath: " + f.getPath() + "\n length: " + f.length() + "\n lastModified: "
            + f.lastModified());//from   ww w  . ja  v  a  2 s  .c o  m
    if (f.isFile())
        System.out.println("It's a file");
    else if (f.isDirectory())
        System.out.println("It's a directory");
}