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• ucc-core
• 2.7.0
• source code
• UCCOptions.java

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eu.unicore.ucc.UCCOptions Maven / Gradle / Ivy

package eu.unicore.ucc;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

import org.apache.commons.cli.Option;
import org.apache.commons.cli.Options;

/**
 * Collection of options for commandline, checking if option names (both long and short) are unique.
 * Adding an option with already taken name results in IllegalArgumentException.

 * 
 * This class also allows to handle multiple groups of options, to improve printing usage info

 * 
 * It is not thread-safe.

 * 
 * @author kstasiak
 * @author schuller
 */
public class UCCOptions extends Options {
	private static final long serialVersionUID = 1L;
	
	private final Set usedOptionNames=new HashSet();

	public static final String GRP_DEFAULT="__DEFAULT__";
	
	public static final String GRP_GENERAL="__GENERAL__";
	
	public static final String GRP_SECURITY="__SECURITY__";
	
	public static final String GRP_VO="__VO__";
	
	private final Map> optionGroups=new HashMap>();
	
	private void markAsUsed(String optionName) {
		if(usedOptionNames.contains(optionName)) {
			throw new IllegalArgumentException("The option \'"+optionName+
					"\' has already been registered before.");
		}
		usedOptionNames.add(optionName);
	}
	
	@Override
	public Options addOption(Option option){
		//add to default option group
		return addOption(option, GRP_DEFAULT);
	}
	
	public Options addOption(Option option, String optionGroup){
		markAsUsed(option.getLongOpt());
		markAsUsed(option.getOpt());
		Options result = super.addOption(option);
		Listgrp=optionGroups.get(optionGroup);
		if(grp==null){
			grp = new ArrayList<>();
			optionGroups.put(optionGroup, grp);
		}
		grp.add(option);
		return result;
	}
	
	private ListgetOptionsGroup(String name){
		return optionGroups.get(name);
	}
	
	public Options getDefaultOptions(){
		List defOpts=getOptionsGroup(GRP_DEFAULT);
		if(defOpts==null)return null;
		Options res=new Options();
		for(Option o: defOpts){
			res.addOption(o);
		}
		return res;
	}
	
	public Options getGeneralOptions(){
		List secOpts=getOptionsGroup(GRP_GENERAL);
		if(secOpts==null)return null;
		Options res=new Options();
		for(Option o: secOpts){
			res.addOption(o);
		}
		return res;
	}
	
	public Options getSecurityOptions(){
		List secOpts=getOptionsGroup(GRP_SECURITY);
		if(secOpts==null)return null;
		Options res=new Options();
		for(Option o: secOpts){
			res.addOption(o);
		}
		return res;
	}
	
	public Options getVOOptions(){
		List voOpts=getOptionsGroup(GRP_VO);
		if(voOpts==null)return null;
		Options res=new Options();
		for(Option o: voOpts){
			res.addOption(o);
		}
		return res;
	}
	
	
	public static boolean isTrue(String var) {
		return var!=null && Arrays.asList( "1", "true", "yes" ).contains(var.toLowerCase());
	}
	
}