com.centurylink.mdw.hub.context.Page Maven / Gradle / Ivy

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package com.centurylink.mdw.hub.context;

import com.centurylink.mdw.model.asset.api.AssetInfo;
import com.centurylink.mdw.model.workflow.PackageMeta;

import java.io.File;
import java.nio.file.Path;
import java.nio.file.Paths;

/**
 * Represents a custom UI page to be loaded.
 */
public class Page {

    private final Mdw mdw;
    public Mdw getMdw() { return mdw; }

    private final String path;
    public String getPath() { return path; }

    public String getRelPath() {
        return path.substring(1);
    }

    private AssetInfo asset;
    public AssetInfo getAsset() {
        if (asset == null) {
            File file = new File(mdw.getAssetRoot() + "/" + path);
            asset = new AssetInfo(file.getName(), file, 0, "0");
        }
        return asset;
    }

    /**
     * Accessed in react default index.html substitution.
     */
    @SuppressWarnings("unused")
    public String getAssetPath() {
        String relPath = getRelPath();
        return relPath.substring(0, relPath.length() - getAsset().getName().length() - 1).replace('/', '.')
                + "/" + getAsset().getName();
    }

    private String template;
    public String getTemplate() { return template; }
    public void setTemplate(String template) { this.template = template; }

    private AssetInfo templateAsset;
    public AssetInfo getTemplateAsset() {
        if (templateAsset == null) {
            File file = new File(mdw.getAssetRoot() + "/" + template);
            templateAsset = new AssetInfo(file.getName(), file, 0, "0");
        }
        return templateAsset;
    }

    public boolean exists() {
        return getAsset().getFile().exists();
    }

    public File getFile() {
        return new File(mdw.getAssetRoot() + "/" + path);
    }

    public String getExt() {
        return getAsset().getExtension();
    }

    /**
     * Embedded means inside MDWHub tabs/frame.
     */
    private boolean embedded;
    public boolean isEmbedded() { return embedded; }
    public void setEmbedded(boolean embedded) { this.embedded = embedded; }

    /**
     * path begins with /
     */
    public Page(Mdw mdw, String path) {
        this.mdw = mdw;
        this.path = path;
    }

    /**
     * Locate closest page in ancestor package hierarchy (if any).
     */
    public Page findAncestor(String name) {
        Path rootPath = Paths.get(mdw.getAssetRoot().getPath()).normalize();
        Path pkgPath = Paths.get(getAsset().getFile().getPath()).normalize();
        while (pkgPath != null && pkgPath.startsWith(rootPath)) {
            if (new File(pkgPath + "/" + PackageMeta.PACKAGE_YAML_PATH).exists() ) {
                Page p = new Page(mdw, "/" + rootPath.relativize(pkgPath).toString().replace('\\', '/') + "/" + name);
                if (p.exists())
                    return p;
            }
            pkgPath = pkgPath.getParent();
        }
        return null;
    }
}