Android Open Source - unknown-pleasures Line Renderer Factory

From Project

License

The source code is released under:

Creative Commons Attribution NonCommercial NoDerivs (CC-NC-ND) THE WORK (AS DEFINED BELOW) IS PROVIDED UNDER THE TERMS OF THIS CREATIVE COMMONS PUBLIC LICENSE ("CCPL" OR "LICENSE"). THE WORK IS PROTE...

If you think the Android project unknown-pleasures listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.

Java Source Code

/**
 * LineRendererFactory.java//www . ja  v  a 2  s .  c  o  m
 * Author: marek.brodziak@gmail.com
 * Created: May 6, 2014
 * Copyright 2014 by miniti
 */

package pl.miniti.android.pleasures.line;

import android.util.Log;

/**
 * Factory of the {@see LineRenderer} implementations
 */
public class LineRendererFactory {

  /**
   * Tag name for the logger
   */
  private static final String T = LineRendererFactory.class.getSimpleName();

  /**
   * Enumeration of available implementations
   */
  private enum Impl {

    /**
     * Default implementation for this factory
     */
    DEFAULT(SimpleLineRenderer.class),
    /**
     * Simple renderer
     */
    SIMPLE(SimpleLineRenderer.class);

    private Class<? extends LineRenderer> lineRendererClass;

    private Impl(Class<? extends LineRenderer> ac) {
      if (ac == null) {
        throw new IllegalArgumentException(
            "null is not a valid LineRenderer implementation");
      }
      lineRendererClass = ac;
    }
  }

  /**
   * Construct a new instance based on the configuration
   * 
   * @param value
   *            configuration value
   * @return object instance
   */
  public static LineRenderer newInstance(String value) {
    Log.d(T, String.format("Searching for LineRenderer %s", value));
    try {

      if (value == null) {
        Log.d(T,
            String.format(
                "Constructing a default LineRenderer implementation %s",
                Impl.DEFAULT.lineRendererClass.getSimpleName()));
        return Impl.DEFAULT.lineRendererClass.newInstance();
      }

      for (Impl a : Impl.values()) {
        if (a.lineRendererClass.getName().equals(value)) {
          Log.d(T, "Match found");
          return a.lineRendererClass.newInstance();
        }
      }

      Log.w(T,
          String.format("%s is not a registered LineRenderer", value));
      Log.d(T, String.format(
          "Constructing a default LineRenderer implementation %s",
          Impl.DEFAULT.lineRendererClass.getSimpleName()));
      return Impl.DEFAULT.lineRendererClass.newInstance();

    } catch (InstantiationException e) {
      Log.e(T, "Error while creating an LineRenderer", e);
    } catch (IllegalAccessException e) {
      Log.e(T, "Error raised while creating an LineRenderer", e);
    }

    Log.d(T, "Fall back to constructing from code");
    return new SimpleLineRenderer();
  }

  /**
   * Construct a new default instance
   * 
   * @return object instance
   */
  public static LineRenderer newInstance() {
    return newInstance(null);
  }
}

Java Source Code List