Examples with DocumentFile android.support.v4.provider.DocumentFile used on opensource projects

Example 36 with DocumentFile

use of android.support.v4.provider.DocumentFile in project frostwire by frostwire.

the class LollipopFileSystem method getFile.

private static DocumentFile getFile(Context context, File file, boolean create) {
    try {
        String path = file.getAbsolutePath();
        DocumentFile cached = CACHE.get(path);
        if (cached != null && cached.isFile()) {
            return cached;
        }
        File parent = file.getParentFile();
        if (parent == null) {
            return DocumentFile.fromFile(file);
        }
        DocumentFile f = getDirectory(context, parent, false);
        if (f == null && create) {
            f = getDirectory(context, parent, create);
        }
        if (f != null) {
            String name = file.getName();
            DocumentFile child = f.findFile(name);
            if (child != null) {
                if (child.isFile()) {
                    f = child;
                } else {
                    f = null;
                }
            } else {
                if (create) {
                    f = f.createFile("application/octet-stream", name);
                } else {
                    f = null;
                }
            }
        }
        if (f != null) {
            CACHE.put(path, f);
        }
        return f;
    } catch (Throwable e) {
        LOG.error("Error getting file: " + file, e);
        return null;
    }
}

Example 37 with DocumentFile

use of android.support.v4.provider.DocumentFile in project frostwire by frostwire.

the class LollipopFileSystem method listFiles.

@Override
public File[] listFiles(File file, FileFilter filter) {
    try {
        File[] files = file.listFiles(filter);
        if (files != null) {
            return files;
        }
    } catch (Throwable e) {
    // ignore, try with SAF
    }
    LOG.warn("Using SAF for listFiles, could be a costly operation");
    DocumentFile f = getDirectory(app, file, false);
    if (f == null) {
        // does not exists
        return null;
    }
    DocumentFile[] files = f.listFiles();
    if (filter != null && files != null) {
        List<File> result = new ArrayList<>(files.length);
        for (DocumentFile file1 : files) {
            Uri uri = file1.getUri();
            String path = getDocumentPath(uri);
            if (path == null) {
                continue;
            }
            File child = new File(path);
            if (filter.accept(child)) {
                result.add(child);
            }
        }
        return result.toArray(new File[0]);
    }
    return new File[0];
}

Example 38 with DocumentFile

use of android.support.v4.provider.DocumentFile in project frostwire by frostwire.

the class LollipopFileSystem method getDocument.

private static DocumentFile getDocument(Context context, File file) {
    try {
        String path = file.getAbsolutePath();
        DocumentFile cached = CACHE.get(path);
        if (cached != null) {
            return cached;
        }
        String baseFolder = getExtSdCardFolder(context, file);
        if (baseFolder == null) {
            return file.exists() ? DocumentFile.fromFile(file) : null;
        }
        baseFolder = combineRoot(baseFolder);
        String fullPath = file.getAbsolutePath();
        String relativePath = baseFolder.length() < fullPath.length() ? fullPath.substring(baseFolder.length() + 1) : "";
        String[] segments = relativePath.split("/");
        Uri rootUri = getDocumentUri(context, new File(baseFolder));
        DocumentFile f = DocumentFile.fromTreeUri(context, rootUri);
        for (String segment : segments) {
            DocumentFile child = f.findFile(segment);
            if (child != null) {
                f = child;
            } else {
                return null;
            }
        }
        if (f != null) {
            CACHE.put(path, f);
        }
        return f;
    } catch (Throwable e) {
        LOG.error("Error getting document: " + file, e);
        return null;
    }
}

Example 39 with DocumentFile

use of android.support.v4.provider.DocumentFile in project frostwire by frostwire.

the class LollipopFileSystem method length.

@Override
public long length(File file) {
    long r = file.length();
    if (r > 0) {
        return r;
    }
    DocumentFile f = getDocument(app, file);
    return f != null ? f.length() : 0;
}

Example 40 with DocumentFile

use of android.support.v4.provider.DocumentFile in project frostwire by frostwire.

the class LollipopFileSystem method lastModified.

@Override
public long lastModified(File file) {
    long r = file.lastModified();
    if (r > 0) {
        return r;
    }
    DocumentFile f = getDocument(app, file);
    return f != null ? f.lastModified() : 0;
}