Version.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2011 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package  org.turro.vcard.properties;
 
import java.util.List;
import org.turro.string.Strings;
 
public enum Version {
 
  V21(21), V30(30);
 
  public static Version getInstance(List<String> lines) {
    for(String l : lines) {
      if(l.equalsIgnoreCase("VERSION:3.0")) {
        return V30;
      }
    }
    return V21;
  }
 
  private int version;
 
  private Version(int version) {
    this.version = version;
  }
 
  public void renderTypes(StringBuilder sb, List<String> types) {
    if(types.isEmpty()) return;
    if(version == 21) {
      for(String t : types) {
        sb.append(";" + t);
      }
    } else if(version == 30) {
      sb.append("TYPE=");
      for(String t : types) {
        sb.append("," + t);
      }
    }
  }
 
  public void renderVersion(StringBuilder sb) {
    sb.append("VERSION:");
    if(version == 21) {
      sb.append("2.1");
    } else if(version == 30) {
      sb.append("3.0");
    }
    sb.append("\n");
  }
 
  public void readTypes(String s, List<String> types) {
    if(Strings.isBlank(s)) return;
    if(s.startsWith(";")) s = s.substring(1);
    if(version == 21) {
      for(String t : s.split(";")) {
        if(!Strings.isBlank(t)) types.add(t);
      }
    } else if(version == 30) {
      if(s.toUpperCase().startsWith("TYPE=")) {
        s = s.substring(5);
        for(String t : s.split(",")) {
          if(!Strings.isBlank(t)) types.add(t);
        }
      }
    }
  }
}