/*

  *   SONEWS News Server

  *   see AUTHORS for the list of contributors

  *

  *   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 org.sonews.util;

 import java.util.HashMap;

 import java.util.Map;

 /**

  * Class that allows simple String template handling.

  * @author Christian Lins

  * @since sonews/0.5.0

  */

 public class StringTemplate

 {

 	private String str = null;

 	private String templateDelimiter = "%";

 	private Map<String, String> templateValues = new HashMap<String, String>();

 	public StringTemplate(String str, final String templateDelimiter)

 	{

 		if (str == null || templateDelimiter == null) {

 			throw new IllegalArgumentException("null arguments not allowed");

 		}

 		this.str = str;

 		this.templateDelimiter = templateDelimiter;

 	}

 	public StringTemplate(String str)

 	{

 		this(str, "%");

 	}

 	public StringTemplate set(String template, String value)

 	{

 		if (template == null || value == null) {

 			throw new IllegalArgumentException("null arguments not allowed");

 		}

 		this.templateValues.put(template, value);

 		return this;

 	}

 	public StringTemplate set(String template, long value)

 	{

 		return set(template, Long.toString(value));

 	}

 	public StringTemplate set(String template, double value)

 	{

 		return set(template, Double.toString(value));

 	}

 	public StringTemplate set(String template, Object obj)

 	{

 		if (template == null || obj == null) {

 			throw new IllegalArgumentException("null arguments not allowed");

 		}

 		return set(template, obj.toString());

 	}

 	@Override

 	public String toString()

 	{

 		String ret = str;

 		for (String key : this.templateValues.keySet()) {

 			String value = this.templateValues.get(key);

 			ret = ret.replace(templateDelimiter + key, value);

 		}

 		return ret;

 	}

 }