io.nosqlbench.nb.api.content.ResolverForFilesystem Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of nb-api Show documentation

The top level API module for NoSQLBench. This module should have no internal module dependencies other than the mvn-default module. All modules within NoSQLBench can safely depend on this module with circular dependencies. This module provides cross-cutting code infrastracture, such as path utilities and ways of describing services used between modules. It is also the transitive aggregation point for system-wide library dependencies for logging and testing or similar needs.

There is a newer version: 5.17.0

Show newest version

package io.nosqlbench.nb.api.content;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import java.net.URI;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.List;

public class ResolverForFilesystem implements ContentResolver {

    public static ResolverForFilesystem INSTANCE = new ResolverForFilesystem();
    private final static Logger logger = LogManager.getLogger(ResolverForFilesystem.class);

    @Override
    public List> resolve(URI uri) {
        List> contents = new ArrayList<>();
        Path path = resolvePath(uri);

        if (path != null) {
            contents.add(new PathContent(path));
        }
        return contents;
    }

    @Override
    public List resolveDirectory(URI uri) {
        List dirs = new ArrayList<>();

        Path path = resolvePath(uri);
        if (path!=null && Files.isDirectory(path)) {
            dirs.add(path);
        }
        return dirs;
    }

    private Path resolvePath(URI uri) {
        if (uri.getScheme() != null && !uri.getScheme().isEmpty() && !uri.getScheme().equals("file")) {
            return null;
        }
        Path pathFromUri = Path.of(uri.getPath());

        if (Files.isReadable(pathFromUri)) {
            return pathFromUri;
        }
        return null;
    }

    public String toString() {
        return this.getClass().getSimpleName();
    }

}