/*
* JGAAP -- a graphical program for stylometric authorship attribution
* Copyright (C) 2009,2011 by Patrick Juola
*
* 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.jgaap.backend;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.jgaap.generics.AnalysisDriver;
/**
*
* Instances new Analysis Drivers based on display name.
* If parameters are also passed in the form DisplayName|name:value|name:value they are added to the Analysis Driver before it is returned
*
* @author Michael Ryan
* @since 5.0.0
*/
public class AnalysisDrivers {
private static final ImmutableList<AnalysisDriver> ANALYSIS_DRIVERS = loadAnalysisDrivers();
private static final ImmutableMap<String, AnalysisDriver> analysisDrivers = loadAnalysisDriversMap();
/**
* A read-only list of the AnalysisDrivers
*/
public static List<AnalysisDriver> getAnalysisDrivers() {
return ANALYSIS_DRIVERS;
}
private static ImmutableList<AnalysisDriver> loadAnalysisDrivers() {
List<Object> objects = AutoPopulate.findObjects("com.jgaap.classifiers", AnalysisDriver.class);
for(Object tmp : AutoPopulate.findClasses("com.jgaap.generics", AnalysisDriver.class)){
objects.addAll( AutoPopulate.findObjects("com.jgaap.classifiers", (Class<?>)tmp));
}
List<AnalysisDriver> analysisDrivers = new ArrayList<AnalysisDriver>(objects.size());
for (Object tmp : objects) {
analysisDrivers.add((AnalysisDriver) tmp);
}
Collections.sort(analysisDrivers);
return ImmutableList.copyOf(analysisDrivers);
}
private static ImmutableMap<String, AnalysisDriver> loadAnalysisDriversMap() {
// Load the classifiers dynamically
ImmutableMap.Builder<String, AnalysisDriver> builder = ImmutableMap.builder();
for(AnalysisDriver analysisDriver: ANALYSIS_DRIVERS){
builder.put(analysisDriver.displayName().toLowerCase(), analysisDriver);
}
return builder.build();
}
public static AnalysisDriver getAnalysisDriver(String action) throws Exception{
AnalysisDriver analysisDriver;
String[] tmp = action.split("\\|", 2);
action = tmp[0].trim().toLowerCase();
if(analysisDrivers.containsKey(action)){
analysisDriver = analysisDrivers.get(action).getClass().newInstance();
}else{
throw new Exception("Analysis Driver "+action+" not found!");
}
if(tmp.length > 1){
analysisDriver.setParameters(tmp[1]);
}
return analysisDriver;
}
}