co.mewf.humpty.servlet.html.Includes Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of humpty-servlet Show documentation

Enables humpty in a Servlet 3 environment

There is a newer version: 0.3.0

package co.mewf.humpty.servlet.html;

import java.io.InputStream;
import java.util.List;
import java.util.stream.Collectors;

import org.apache.commons.io.FilenameUtils;

import co.mewf.humpty.config.Bundle;
import co.mewf.humpty.config.Configuration;

import com.moandjiezana.toml.Toml;

public class Includes {

  private final List bundles;
  private final Toml digest;
  private final String urlRoot;
  private final Toml watch;

  public Includes(Configuration configuration, String contextPath, String urlPattern) {
    this.urlRoot = (contextPath + urlPattern).replaceFirst("//", "/");
    this.bundles = configuration.getBundles();
    ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
    try {
      InputStream digestStream = classLoader.getResourceAsStream(configuration.getGlobalOptions().getDigestFile().toString());
      this.digest = digestStream != null ? new Toml().parse(digestStream) : null;
      InputStream watchStream = classLoader.getResourceAsStream(configuration.getGlobalOptions().getWatchFile().toString());
      this.watch = watchStream != null ? new Toml().parse(watchStream) : null;
    } catch (Exception e) {
      throw new RuntimeException(e);
    }
  }

  public String generate(String bundleName) {
    if (digest != null) {
      return toHtml(bundleName, digest.getString("\"" + bundleName + "\""));
    }

    Bundle bundle = bundles.stream().filter(b -> b.accepts(bundleName)).findFirst().orElseThrow(() -> new IllegalArgumentException("No bundle defined with name: " + bundleName));
    
    return bundle.stream().map(asset -> toHtml(bundleName, bundle.getName() + "/" + asset)).collect(Collectors.joining("\n"));
  }

  public String generateLiveReload() {
    if (watch == null) {
      return "";
    }
    
    return "";
  }
  
  private String toHtml(String bundleName, String expandedAsset) {
    StringBuilder html = new StringBuilder();
    
    if (bundleName.endsWith(".js")) {
      js(expandedAsset, html);
    } else if (bundleName.endsWith(".css")) {
      css(expandedAsset, html);
    }
    
    return html.toString();
  }
  
  private void js(String expandedAsset, StringBuilder html) {
    html.append("");
  }
  
  private void css(String expandedAsset, StringBuilder html) {
    html.append("");
  }

}