/**
* 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 static info.globalcode.sql.dk.Xmlns.CONFIGURATION;
import info.globalcode.sql.dk.formatting.Formatter;
import info.globalcode.sql.dk.formatting.FormatterContext;
import info.globalcode.sql.dk.formatting.FormatterException;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import javax.xml.bind.annotation.XmlElement;
/**
* Configured (but not yet instantiated) formatter.
*
* @author Ing. František Kučera (frantovo.cz)
*/
public class FormatterDefinition implements NameIdentified {
private String name;
private String className;
private Properties properties = new Properties();
public FormatterDefinition() {
}
public FormatterDefinition(String name, String className) {
this.name = name;
this.className = className;
}
public FormatterDefinition(String name, String className, Properties properties) {
this(name, className);
this.properties = properties;
}
@XmlElement(name = "name", namespace = CONFIGURATION)
@Override
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
/**
* Filter's class. Must implement the
* <code>info.globalcode.sql.dk.formatting.Formatter</code> interface.
* Subclassing the
* <code>info.globalcode.sql.dk.formatting.AbstractFormatter</code> is strongly recommended.
* The constructor must accept one parameter:
* <code>info.globalcode.sql.dk.formatting.FormatterContext</code>
*
* @return fully qualified class name
*/
@XmlElement(name = "class", namespace = CONFIGURATION)
public String getClassName() {
return className;
}
public void setClassName(String className) {
this.className = className;
}
@XmlElement(name = "property", namespace = CONFIGURATION)
public Properties getProperties() {
return properties;
}
public void setProperties(Properties properties) {
this.properties = properties;
}
/**
* @param context
* @return
* @throws FormatterException
*/
public Formatter getInstance(FormatterContext context) throws FormatterException {
context.getProperties().setDefaults(properties);
try {
Constructor constructor = Class.forName(className).getConstructor(context.getClass());
Object instance = constructor.newInstance(context);
if (instance instanceof Formatter) {
return (Formatter) instance;
} else {
throw new FormatterException("Formatter " + instance + " does not implement the " + Formatter.class.getName() + " interface");
}
} catch (ClassNotFoundException e) {
throw new FormatterException("Formatter class does not exist: " + className, e);
} catch (NoSuchMethodException e) {
throw new FormatterException("Formatter class with no valid constructor: " + className, e);
} catch (InstantiationException | IllegalAccessException | InvocationTargetException e) {
throw new FormatterException("Formatter's constructor caused an error: " + className, e);
}
}
}