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OpenSearchServer is a powerful, enterprise-class, search engine program. Using the web user interface, the crawlers (web, file, database, ...) and the REST/RESTFul API you will be able to integrate quickly and easily advanced full-text search capabilities in your application. OpenSearchServer runs on Windows and Linux/Unix/BSD.

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/**   
 * License Agreement for OpenSearchServer
 *
 * Copyright (C) 2013-2014 Emmanuel Keller / Jaeksoft
 * 
 * http://www.open-search-server.com
 * 
 * This file is part of OpenSearchServer.
 *
 * OpenSearchServer 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.
 *
 * OpenSearchServer 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 OpenSearchServer. 
 *  If not, see .
 **/

package com.jaeksoft.searchlib.util;

import java.io.IOException;
import java.io.StringReader;
import java.util.Map;
import java.util.Properties;
import java.util.TreeMap;

import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.JsonMappingException;

public class Variables {

	public Map map;

	public Variables() {
		map = null;
	}

	public Variables(Map variables) {
		put(variables);
	}

	public Variables(Variables vars) {
		if (vars == null)
			return;
		put(vars.map);
	}

	public Variables(String json) throws JsonParseException,
			JsonMappingException, IOException {
		Map jsonMap = JsonUtils.getObject(json,
				new TypeReference>() {
				});
		for (Map.Entry entry : jsonMap.entrySet())
			put(entry.getKey(), entry.getValue());
	}

	private final void checkMap() {
		if (map == null)
			map = new TreeMap();
	}

	public final void merge(Variables variables) {
		if (variables == null)
			return;
		checkMap();
		if (variables.map != null)
			map.putAll(variables.map);
	}

	public final void put(Variables variables) {
		if (variables == null)
			return;
		put(variables.map);
	}

	public final void put(Map variables) {
		if (variables == null || variables.size() == 0)
			return;
		checkMap();
		for (Map.Entry entry : variables.entrySet())
			put(entry.getKey(), entry.getValue());
	}

	public final void put(String name, String value) {
		if (name == null || value == null)
			return;
		checkMap();
		map.put(StringUtils.fastConcat("{", name, "}"), value);
	}

	public final void clear(String name) {
		if (name == null)
			return;
		checkMap();
		map.remove(name);
	}

	public final String replace(String text) {
		if (map == null || text == null)
			return text;
		for (Map.Entry entry : map.entrySet())
			text = text.replace(entry.getKey(), entry.getValue());
		return text;
	}

	public void clear() {
		if (map == null)
			return;
		map.clear();
	}

	public void put(Properties props) {
		if (props == null)
			return;
		for (String name : props.stringPropertyNames())
			put(name, props.getProperty(name));
	}

	public void putProperties(String vars) throws IOException {
		if (StringUtils.isEmpty(vars))
			return;
		Properties properties = new Properties();
		StringReader sr = new StringReader(vars);
		try {
			properties.load(sr);
			put(properties);
		} finally {
			IOUtils.close(sr);
		}
	}
}