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package org.onetwo.common.utils.map;

import java.util.Collection;
import java.util.Map;
import java.util.Set;

import org.onetwo.common.utils.CUtils;
import org.onetwo.common.utils.LangUtils;
import org.onetwo.common.utils.ParamUtils;
import org.onetwo.common.utils.StringUtils;
import org.onetwo.common.utils.VerySimpleStartMatcher;

/****
 * CasualMap
 * @author way
 *
 */
@SuppressWarnings({ "unchecked", "rawtypes" })
public class ParamMap extends CollectionMap{
	
	public ParamMap(){super();};

	public ParamMap(Map> map){
		super(map);
	}
	
	public ParamMap(String paramStr){
		this(paramStr, null);
	}
	public ParamMap(String paramStr, Map> map){
		super(map);
		this.putEntryByString(paramStr);
	}
	
	final protected void putEntryByString(String paramStr){
		if(StringUtils.isBlank(paramStr))
			return ;
		
		int paramStart = paramStr.indexOf('?');
		if(paramStart!=-1){
			paramStr = paramStr.substring(paramStart+1);
		}
		String[] params = StringUtils.split(paramStr, "&");
		if(LangUtils.isEmpty(params)) return;
		
		for(String param : params){
			String[] pv = StringUtils.split(param, "=");
			
			if(pv.length < 2){
				putElement(pv[0], "");
			}else{
				putElement(pv[0], pv[1]);
			}
		}
	}
	
	public ParamMap subtract(Map> map){
		return (ParamMap) CUtils.subtract(this, map, false);
	}
	
	public ParamMap addWithFilter(Map> map, String...prefixs){
		if(map==null || map.isEmpty())
			return this;
		for(Map.Entry> entry : (Set>>)map.entrySet()){
			if(matchPrefix(entry.getKey().toString(), prefixs))
				continue;
			for(Object v : entry.getValue()){
				putElement(entry.getKey(), v);
			}
		}
		return this;
	}
	
	protected boolean matchPrefix(String key, String... prefixs){
		for(String prefix : prefixs){
			VerySimpleStartMatcher match = VerySimpleStartMatcher.create(prefix);
			if(match.match(key)){
				return true;
			}
		}
		return false;
	}
	

	public ParamMap filter(String...patterns){
		LangUtils.filterMap(this, patterns);
		return this;
	}
	

	
	public ParamMap addMapWithFilter(Map map, String...prefixs){
		if(map==null || map.isEmpty())
			return this;
		for(Map.Entry entry : (Set)map.entrySet()){
			if(matchPrefix(entry.getKey().toString(), prefixs))
				continue;
			Object val = entry.getValue();
			Object[] values = null;
			if(val instanceof Collection){
				values = (Object[])((Collection