Material.java

package com.nicewuerfel.blockown;

import org.bukkit.entity.EntityType;
import org.bukkit.material.MaterialData;

import java.io.Serializable;

public final class Material implements Serializable {

  private static final long serialVersionUID = -3658668250059098095L;
  public static final String ANY_STRING = "ALL";
  public static final Material ANY = new Material();

  private final boolean isBlock;
  private final EntityType entityType;
  private final org.bukkit.Material material;

  private Material() {
    this.isBlock = true;
    this.entityType = null;
    this.material = null;
  }

  public Material(org.bukkit.Material material) {
    this.isBlock = true;
    this.material = material;
    this.entityType = null;
  }

  public Material(EntityType entityType) {
    this.isBlock = false;
    this.material = null;
    this.entityType = entityType;
  }

  public EntityType getEntityType() {
    return entityType;
  }

  public org.bukkit.Material getMaterial() {
    return material;
  }

  public Class<? extends MaterialData> getData() {
    return material.getData();
  }

  public boolean isAny() {
    return (material == null && entityType == null);
  }

  public boolean isBlock() {
    return isBlock;
  }

  public String getName() {
    if (isAny()) {
      return ANY_STRING;
    } else {
      if (isBlock()) {
        return material.toString();
      } else {
        return entityType.toString();
      }
    }
  }

  @SuppressWarnings("deprecation")
  public static Material parseMaterial(String materialName) {
    if (materialName.equalsIgnoreCase(ANY_STRING)) {
      return ANY;
    }

    EntityType type = null;
    try {
      type = EntityType.valueOf(materialName.toUpperCase());
    } catch (IllegalArgumentException ignored) {
      // Ignore this and try something different
    }
    if (type != null) {
      return new Material(type);
    }

    org.bukkit.Material material;
    try {
      int id = Integer.parseInt(materialName);
      material = org.bukkit.Material.getMaterial(id);
    } catch (NumberFormatException e) {
      material = org.bukkit.Material.matchMaterial(materialName);
    }
    if (material != null) {
      return new Material(material);
    }

    throw new IllegalArgumentException("Unknown material: " + materialName);
  }

  @Override
  public int hashCode() {
    final int prime = 31;
    int result = 7;
    result = prime * result + ((entityType == null) ? 0 : entityType.hashCode());
    result = prime * result + (isBlock ? 1231 : 1237);
    result = prime * result + ((material == null) ? 0 : material.hashCode());
    return result;
  }

  @Override
  public boolean equals(Object obj) {
    if (this == obj) {
      return true;
    }
    if (!(obj instanceof Material)) {
      return false;
    }
    Material other = (Material) obj;
    if (isBlock != other.isBlock) {
      return false;
    }
    if (entityType != other.entityType) {
      return false;
    }
    return material == other.material;
  }

  @Override
  public String toString() {
    return getName();
  }
}