/*
* RapidMiner
*
* Copyright (C) 2001-2014 by RapidMiner and the contributors
*
* Complete list of developers available at our web site:
*
* http://rapidminer.com
*
* 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 com.rapidminer.operator.nio.model;
import java.util.Observable;
import java.util.Observer;
import com.rapidminer.example.Attributes;
import com.rapidminer.operator.ports.metadata.AttributeMetaData;
/** The meta data either guessed by RapidMiner or specified by the user for a
* column of an excel file, csv file, etc.
*
* @author Simon Fischer
*
*/
public class ColumnMetaData extends Observable {
/** Attribute name as specified in the file, or generated by the source. */
private String originalAttributeName;
/** Attribute name as specified by the user. */
private String userDefinedAttributeName;
private int attributeValueType;
private String role;
private boolean selected;
public ColumnMetaData() {
}
public ColumnMetaData(String originalAttributeName, String userDefinedAttributeName, int attributeValueType, String role, boolean selected) {
super();
this.originalAttributeName = originalAttributeName;
this.userDefinedAttributeName = userDefinedAttributeName;
this.attributeValueType = attributeValueType;
this.role = role;
this.selected = selected;
}
/** Used to inform the validator about the ColumnMetaData object **/
@Override
public synchronized void addObserver(Observer o) {
super.addObserver(o);
}
public String getOriginalAttributeName() {
return originalAttributeName;
}
public void setOriginalAttributeName(String originalAttributeName) {
if (equals(this.originalAttributeName, originalAttributeName)) return;
this.originalAttributeName = originalAttributeName;
setChanged();
notifyObservers();
}
public String getUserDefinedAttributeName() {
return userDefinedAttributeName;
}
public void setUserDefinedAttributeName(String userDefinedAttributeName) {
if (equals(this.userDefinedAttributeName, userDefinedAttributeName)) return;
this.userDefinedAttributeName = userDefinedAttributeName;
setChanged();
notifyObservers();
}
public int getAttributeValueType() {
return attributeValueType;
}
public void setAttributeValueType(int attributeValueType) {
if (attributeValueType == this.attributeValueType) return;
this.attributeValueType = attributeValueType;
setChanged();
notifyObservers();
}
public String getRole() {
return role;
}
public void setRole(String role) {
if (equals(role, this.role)) return;
this.role = role;
setChanged();
notifyObservers();
}
public boolean isSelected() {
return selected;
}
public void setSelected(boolean selected) {
this.selected = selected;
}
@Override
public String toString() {
return getRole() + " "+getUserDefinedAttributeName() + " ("+getOriginalAttributeName()+")"+getAttributeValueType()+ " "+(isSelected()?"x":"-");
}
public AttributeMetaData getAttributeMetaData() {
String roleId = getRole();
if (!Attributes.ATTRIBUTE_NAME.equals(roleId))
return new AttributeMetaData(getUserDefinedAttributeName(), getAttributeValueType(), roleId);
else
return new AttributeMetaData(getUserDefinedAttributeName(), getAttributeValueType());
}
/** Returns whether the user specified a name different from the default. */
public boolean isAttributeNameSpecified() {
if (userDefinedAttributeName == null) {
return false;
}
return !userDefinedAttributeName.equals(originalAttributeName);
}
private static boolean equals(String s1, String s2) {
return ((s1 == null) && (s2 == null)) || ((s1 != null) && s1.equals(s2));
}
}