/**
* SQL-DK
* Copyright © 2013 František Kučera (frantovo.cz)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package info.globalcode.sql.dk.configuration;
import java.util.ArrayList;
import javax.xml.bind.annotation.XmlTransient;
import static info.globalcode.sql.dk.Functions.findByName;
import java.util.Collections;
/**
* <p>
* List of configurables.</p>
*
* <p>
* Can be backed by defaults – if value for given name is nof found in this instance, we will
* look into defaults. Methods also accept defaultValue parameter – is used if property is nof found
* even in default properties.</p>
*
* <p>
* Typical use: </p>
* <ul>
* <li>this instance – ad-hoc properties from CLI options</li>
* <li>default properties – from config file</li>
* <li>defaultValue – hardcoded default</li>
* </ul>
*
* @author Ing. František Kučera (frantovo.cz)
*/
public class Properties extends ArrayList<Property> implements Cloneable {
private Properties defaults;
public Properties() {
}
public Properties(int initialCapacity) {
super(initialCapacity);
}
@XmlTransient
public Properties getDefaults() {
return defaults;
}
public void setDefaults(Properties defaults) {
this.defaults = defaults;
}
/**
* @param defaults the last/deepest defaults
*/
public void setLastDefaults(Properties defaults) {
if (this.defaults == null) {
this.defaults = defaults;
} else {
this.defaults.setLastDefaults(defaults);
}
}
private Property findProperty(String name) {
Property p = findByName(this, name);
if (p == null && defaults != null) {
p = defaults.findProperty(name);
}
return p;
}
public String getString(String name, String defaultValue) {
Property p = findProperty(name);
return p == null ? defaultValue : p.getValue();
}
public boolean getBoolean(String name, boolean defaultValue) {
Property p = findProperty(name);
return p == null ? defaultValue : Boolean.valueOf(p.getValue());
}
public int getInteger(String name, int defaultValue) {
Property p = findProperty(name);
return p == null ? defaultValue : Integer.valueOf(p.getValue());
}
public boolean hasProperty(String name) {
return findByName(this, name) != null;
}
@Override
public Properties clone() {
Properties clone = new Properties(size());
Collections.copy(clone, this);
return clone;
}
/**
* @return merged this and backing defaults as Java Properties
*/
public java.util.Properties getJavaProperties() {
java.util.Properties javaProperties = new java.util.Properties();
duplicateTo(javaProperties);
return javaProperties;
}
private void duplicateTo(java.util.Properties javaProperties) {
if (defaults != null) {
defaults.duplicateTo(javaProperties);
}
for (Property p : this) {
String value = p.getValue();
if (value != null) {
javaProperties.setProperty(p.getName(), value);
}
}
}
}