Example usage for java.io File canRead

Introduction

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

Prototype

public boolean canRead()

Source Link

Document

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

Usage

From source file:Main.java

static boolean isFileUseful(File file) {
    return file != null && file.exists() && file.canRead() && !file.isDirectory();
}

From source file:Main.java

public static boolean hasFileAccess(String filePath) {
    if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.LOLLIPOP) {
        return true;
    }//from ww  w. ja  va  2  s  .  com
    File file = new File(filePath);
    if (file.canRead()) {
        return true;
    } else {
        return false;
    }
}

From source file:Main.java

public static int getFileLines(File file) {
    if (!file.canRead() || !file.isFile()) {
        Log.w(LOG_TAG, CLASS + ": getLinesInFile: invalid file.");
        return -1;
    }/*  w  w  w .  ja  v a2  s  . c om*/

    int lines = 0;
    try {
        BufferedReader reader = new BufferedReader(new FileReader(file));
        while (reader.readLine() != null)
            lines++;
        reader.close();
    } catch (Exception e) {
        e.printStackTrace();
    }

    return lines;
}

From source file:Main.java

public static void valiFileCanRead(File file) throws IOException {
    if (!file.canRead()) {
        throw new IOException("For file '" + file.getName() + "' not read access!");
    }//from  ww w .  ja  va  2s  .  c om
}

From source file:Main.java

public static boolean canListFiles(File f) {
    try {/*from  w ww.j  ava 2 s  .c  o  m*/
        return f.canRead() && f.isDirectory();
    } catch (Exception e) {
        return false;
    }
}

From source file:Main.java

public static boolean isFBCanRW() {
    try {/*from  w  w w . ja va 2s .  c  om*/
        File fbFile = new File("/dev/graphics/fb0");
        return fbFile.canRead() && fbFile.canWrite();
    } catch (Exception exception) {
        return false;
    }
}

From source file:Main.java

/**
 * checks if the file exists and is readable
 *//* ww  w .j  a  v  a2  s.  co  m*/
public static boolean fileExistsAndCanRead(String filePath) {
    File f = new File(filePath);
    return (f.exists() && !f.isDirectory() && f.canRead());
}

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

/**
 * Tests if a folder is a RPG2k Game./* ww  w .  ja va2 s .c o  m*/
 * (contains DATABASE_NAME and TREEMAP_NAME)
 *
 * @param dir Directory to test
 * @return true if RPG2k game
 */
public static boolean isRpg2kGame(File dir) {
    if (!dir.isDirectory() || !dir.canRead()) {
        return false;
    }

    boolean databaseFound = false;
    boolean treemapFound = false;

    for (File entry : dir.listFiles()) {
        if (entry.isFile() && entry.canRead()) {
            if (!databaseFound && entry.getName().equalsIgnoreCase(DATABASE_NAME)) {
                databaseFound = true;
            } else if (!treemapFound && entry.getName().equalsIgnoreCase(TREEMAP_NAME)) {
                treemapFound = true;
            }

            if (databaseFound && treemapFound) {
                return true;
            }
        }
    }

    return false;
}

From source file:Main.java

private static void readGpxDirectory(File dir, final List<String> list, String parent) {
    if (dir != null && dir.canRead()) {
        File[] files = dir.listFiles();
        if (files != null) {
            for (File f : files) {
                if (f.getName().toLowerCase().endsWith(".gpx")) { //$NON-NLS-1$
                    list.add(parent + f.getName());
                } else if (f.isDirectory()) {
                    readGpxDirectory(f, list, parent + f.getName() + "/");
                }/*ww w  .jav  a2 s. com*/
            }
        }
    }
}