Examples with RandomAccessFile java.io.RandomAccessFile used on opensource projects

Example 71 with RandomAccessFile

use of java.io.RandomAccessFile in project android_frameworks_base by ResurrectionRemix.

the class BackupManagerService method writeToJournalLocked.

private void writeToJournalLocked(String str) {
    RandomAccessFile out = null;
    try {
        if (mJournal == null)
            mJournal = File.createTempFile("journal", null, mJournalDir);
        out = new RandomAccessFile(mJournal, "rws");
        out.seek(out.length());
        out.writeUTF(str);
    } catch (IOException e) {
        Slog.e(TAG, "Can't write " + str + " to backup journal", e);
        mJournal = null;
    } finally {
        try {
            if (out != null)
                out.close();
        } catch (IOException e) {
        }
    }
}

Example 72 with RandomAccessFile

use of java.io.RandomAccessFile in project android_frameworks_base by ResurrectionRemix.

the class RandomBlock method toFile.

void toFile(String filename, boolean sync) throws IOException {
    if (DEBUG)
        Slog.v(TAG, "writing to file " + filename);
    RandomAccessFile out = null;
    try {
        out = new RandomAccessFile(filename, sync ? "rws" : "rw");
        toDataOut(out);
        truncateIfPossible(out);
    } finally {
        close(out);
    }
}

Example 73 with RandomAccessFile

use of java.io.RandomAccessFile in project android_frameworks_base by ResurrectionRemix.

the class LockSettingsStorage method readFile.

private byte[] readFile(String name) {
    int version;
    synchronized (mCache) {
        if (mCache.hasFile(name)) {
            return mCache.peekFile(name);
        }
        version = mCache.getVersion();
    }
    RandomAccessFile raf = null;
    byte[] stored = null;
    try {
        raf = new RandomAccessFile(name, "r");
        stored = new byte[(int) raf.length()];
        raf.readFully(stored, 0, stored.length);
        raf.close();
    } catch (IOException e) {
        Slog.e(TAG, "Cannot read file " + e);
    } finally {
        if (raf != null) {
            try {
                raf.close();
            } catch (IOException e) {
                Slog.e(TAG, "Error closing file " + e);
            }
        }
    }
    mCache.putFileIfUnchanged(name, stored, version);
    return stored;
}

Example 74 with RandomAccessFile

use of java.io.RandomAccessFile in project android_frameworks_base by ResurrectionRemix.

the class LockSettingsStorage method writeFile.

private void writeFile(String name, byte[] hash) {
    synchronized (mFileWriteLock) {
        RandomAccessFile raf = null;
        try {
            // Write the hash to file
            raf = new RandomAccessFile(name, "rw");
            // Truncate the file if pattern is null, to clear the lock
            if (hash == null || hash.length == 0) {
                raf.setLength(0);
            } else {
                raf.write(hash, 0, hash.length);
            }
            raf.close();
        } catch (IOException e) {
            Slog.e(TAG, "Error writing to file " + e);
        } finally {
            if (raf != null) {
                try {
                    raf.close();
                } catch (IOException e) {
                    Slog.e(TAG, "Error closing file " + e);
                }
            }
        }
        mCache.putFile(name, hash);
    }
}

Example 75 with RandomAccessFile

use of java.io.RandomAccessFile in project android_frameworks_base by ResurrectionRemix.

the class Hyphenator method loadHyphenator.

private static Hyphenator loadHyphenator(String languageTag) {
    String patternFilename = "hyph-" + languageTag.toLowerCase(Locale.US) + ".hyb";
    File patternFile = new File(getSystemHyphenatorLocation(), patternFilename);
    try {
        RandomAccessFile f = new RandomAccessFile(patternFile, "r");
        try {
            FileChannel fc = f.getChannel();
            MappedByteBuffer buf = fc.map(FileChannel.MapMode.READ_ONLY, 0, fc.size());
            long nativePtr = StaticLayout.nLoadHyphenator(buf, 0);
            return new Hyphenator(nativePtr, buf);
        } finally {
            f.close();
        }
    } catch (IOException e) {
        Log.e(TAG, "error loading hyphenation " + patternFile, e);
        return null;
    }
}