syncloud.storage.PathKey Maven / Gradle / Ivy

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package syncloud.storage;

import org.apache.commons.io.FilenameUtils;
import org.apache.commons.lang.StringUtils;

import java.io.File;
import java.util.*;

public class PathKey {
    private static String slash = "/";
    private static String nativeSeparator = File.separator;

    private List pathComponents = new ArrayList();

    public PathKey(List pathComponents) {
        this.pathComponents = pathComponents;
    }

    public PathKey(String... components) {
        if (components != null)
            this.pathComponents = Arrays.asList(components);
    }

    public static PathKey create(String path) throws StorageException {
        String normilized = FilenameUtils.normalize(path);
        normilized = FilenameUtils.separatorsToUnix(normilized);

        ArrayList components = new ArrayList();
        if (!normilized.isEmpty()) {
            if (normilized.equals(slash)) {
                components.add("");
            } else {
                String[] names = normilized.split(slash);
                components.addAll(Arrays.asList(names));
            }
        }

        return new PathKey(components);
    }

    public String getNativePath() {
        return getPath(nativeSeparator);
    }

    public String getPath(String separator) {
        String path = StringUtils.join(pathComponents, separator);
        if (pathComponents.size() == 1) path += separator;
        return path;
    }

    public PathKey child(String name) {
        ArrayList components = new ArrayList(pathComponents);
        components.add(name);
        return new PathKey(components);
    }

    public List getPathComponents() {
        return Collections.unmodifiableList(pathComponents);
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;

        PathKey pathKey = (PathKey) o;

        if (pathComponents != null ? !pathComponents.equals(pathKey.pathComponents) : pathKey.pathComponents != null)
            return false;

        return true;
    }

    @Override
    public int hashCode() {
        int result = pathComponents != null ? pathComponents.hashCode() : 0;
        return result;
    }

    @Override
    public String toString() {
        return "PathKey{" + "pathComponents=" + pathComponents + '}';
    }
}