AttributeItem.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.elephant.impl.context;
 
import java.util.ArrayList;
import java.util.Date;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.turro.string.ObjectString;
import org.turro.string.Strings;
import org.turro.elephant.context.IConstructor;
import org.turro.util.PhraseBuilder;
 
public class AttributeItem {
  public static final int 
          STRING_ATTR = 0,
          NUMBER_ATTR = 1,
          DATE_ATTR = 2,
          BOOLEAN_ATTR = 3,
          SELECT_ATTR = 4;
 
  public String name, value, defaultValue;
  public int type;
  public List choices = null;
 
  public AttributeItem(String name, Boolean value, Boolean defaultValue) {
    this(name, 
            value.booleanValue() ? "true" : "false", 
            NUMBER_ATTR,
            defaultValue.booleanValue() ? "true" : "false");
  }
  
  public AttributeItem(String name, Number value, Number defaultValue) {
    this(name, 
            ObjectString.formatNativeObject(value, true), 
            NUMBER_ATTR,
            ObjectString.formatNativeObject(defaultValue, true));
  }
  
  public AttributeItem(String name, Date value, Date defaultValue) {
    this(name, 
            ObjectString.formatObject(value, ObjectString.COMPRESSED_DATE_PATTERN, true), 
            DATE_ATTR,
            ObjectString.formatObject(defaultValue, ObjectString.COMPRESSED_DATE_PATTERN, true));
  }
  
  public AttributeItem(String name, String value, int type, String defaultValue) {
    this.name = name;
    this.value = value;
    this.type = type;
    this.defaultValue = defaultValue;
  }
  
  public void addChoice(String choice) {
    if(choices == null) 
      choices = new ArrayList();
    choices.add(choice);
    type = SELECT_ATTR;
  }
  
  public String getValue() {
    if(value == null) return defaultValue;
    return value;
  }
 
  public String getValue(String defaultValue) {
    if(value == null) return defaultValue;
    return value;
  }
 
  public void setValue(String value) {
    this.value = value;
  }
  
  public double getDoubleValue() {
    return ((Double) ObjectString.parseNativeString(getValue(), Double.class, true)).doubleValue();
  }
  
  public double getDoubleValue(double defaultValue) {
    if(value == null) {
      return defaultValue;
    }
    return getDoubleValue();
  }
  
  public int getIntegerValue() {
    return ((Integer) ObjectString.parseNativeString(getValue(), Integer.class, true)).intValue();
  }
  
  public int getIntegerValue(int defaultValue) {
    if(value == null) {
      return defaultValue;
    }
    return getIntegerValue();
  }
  
  public long getLongValue() {
    return ((Long) ObjectString.parseNativeString(getValue(), Long.class, true)).longValue();
  }
  
  public long getLongValue(long defaultValue) {
    if(value == null) {
      return defaultValue;
    }
    return getLongValue();
  }
  
  public boolean getBooleanValue() {
    String v = getValue();
    return "true".equals(v);
  }
  
  public boolean getBooleanValue(boolean defaultValue) {
    if(value == null) {
      return defaultValue;
    }
    return getBooleanValue();
  }
  
  public void setBooleanValue(boolean value) {
    this.value = value ? "true" : "false";
  }
  
  public Date getDateValue() {
    String v = getValue();
    return (Date) ObjectString.parseString(v, ObjectString.COMPRESSED_DATE_PATTERN, Date.class, false);
  }
  
  public Date getDateValue(Date defaultValue) {
    if(value == null) {
      return defaultValue;
    }
    return getDateValue();
  }
  
  public List getChoices() {
    return choices;
  }
  
  public <T extends Enum<T>> Set getEnumSet(Class<T> javaClass) {
    Set set = new HashSet();
    if(javaClass.isEnum() && !Strings.isBlank(value)) {
      for(Enum enumVal: javaClass.getEnumConstants()) {  
        if(value.contains(enumVal.toString())) {
          set.add(enumVal);
        }
      }
    }
    return set;
  }
  
  public static AttributeItem getFromParameter(IConstructor constructor, String name, String defaultValue) {
    String[] values = constructor.getParameterValues(name);
    return new AttributeItem(name, format(values), STRING_ATTR, defaultValue);
  }
  
  private static String format(String[] values) {
    if(values != null) {
      PhraseBuilder pb = new PhraseBuilder();
      for(String s : values) {
        pb.addWord(s);
        pb.addPendingSeparator(",");
      }
      return pb.toString();
    }
    return null;
  }
  
}