BundleVersion.java example

Explorer
Lucee-master
/**
 * Copyright (c) 2015, Lucee Assosication Switzerland. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either 
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library 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
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public 
 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
 * 
 */
package lucee.runtime.osgi;

import lucee.commons.lang.StringUtil;
import lucee.runtime.exp.PageException;
import lucee.runtime.op.Caster;
import lucee.runtime.type.util.ListUtil;

public class BundleVersion {
	
	private final int major;
	private final int minor;
	private final int micro;
	private final String qualifier;
	private String str;
	
	private BundleVersion(String str) {
		String[] arr;
		try {
			arr = ListUtil.toStringArrayTrim(ListUtil.listToArray(str.trim(), '.'));
		}
		catch (PageException e) {
			arr=new String[0]; // should not happen
		}
		
		if(arr.length==0) {
			major=0;
			minor=0;
			micro=0;
			qualifier=null;
		}
		else if(arr.length==1) {
			major=Caster.toIntValue(arr[0],0);
			minor=0;
			micro=0;
			qualifier=null;
		}
		else if(arr.length==2) {
			major=Caster.toIntValue(arr[0],0);
			minor=Caster.toIntValue(arr[1],0);
			micro=0;
			qualifier=null;
		}
		else if(arr.length==3) {
			major=Caster.toIntValue(arr[0],0);
			minor=Caster.toIntValue(arr[1],0);
			micro=Caster.toIntValue(arr[2],0);
			qualifier=null;
		}
		else {
			major=Caster.toIntValue(arr[0],0);
			minor=Caster.toIntValue(arr[1],0);
			micro=Caster.toIntValue(arr[2],0);
			qualifier=arr[3];
		}
		
		StringBuilder sb = new StringBuilder()
		.append(major)
		.append('.')
		.append(minor)
		.append('.')
		.append(micro);
		
		if(qualifier!=null)
			sb.append('.').append(qualifier);
		this.str=sb.toString();
		
		
	}
	private BundleVersion() {
		major=0;
		minor=0;
		micro=0;
		qualifier=null;
	}
	@Override
	public String toString() {
		return str;
	}
	
	@Override
	public boolean equals(Object obj) {
		if(!(obj instanceof BundleVersion)) return false;
		BundleVersion other=(BundleVersion) obj;
		if(major!=other.major || minor!=other.minor || micro!=other.micro) return false;
		if(qualifier==null) {
			return StringUtil.isEmpty(other.qualifier);
		}
		return qualifier.equals(other.qualifier);
	}
}