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62 lines
2.4 KiB
Java
62 lines
2.4 KiB
Java
/*
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XOWA: the XOWA Offline Wiki Application
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Copyright (C) 2012 gnosygnu@gmail.com
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package gplx.gfml; import gplx.*;
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public class GfmlItmKeys {
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public int Count() {return list.Count();}
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public boolean Has(String key) {return hash.Has(key);}
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public GfmlItm Get_at(int i) {return (GfmlItm)list.Get_at(i);}
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public GfmlItm Get_by(String key) {return (GfmlItm)hash.Get_by(key);}
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public String FetchDataOr(String key, String or) {
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GfmlAtr atr = FetchAtr(key);
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return (atr == null) ? or : atr.DatTkn().Val();
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}
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public String FetchDataOrNull(String key) {return FetchDataOr(key, null);}
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public String FetchDataOrFail(String key) {
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GfmlAtr atr = FetchAtr(key); if (atr == null) throw Err_.new_missing_key(key);
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return atr.DatTkn().Val();
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}
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public GfmlTkn FetchDataTknOrNull(String key) {
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GfmlAtr atr = FetchAtr(key); if (atr == null) return GfmlTkn_.Null;
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return atr.DatTkn();
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}
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public void Add(GfmlItm itm) {
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String key = itm.Key();
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if (hash.Has(key)) DelDefault(itm); // default attribs are added automatically; drop default when adding newElm
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list.Add(itm);
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if (!String_.Eq(key, GfmlItmKeys.NullKey))
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RegisterKey(key, itm);
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}
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@gplx.Internal protected void RegisterKey(String key, GfmlItm itm) {
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if (hash.Has(key)) hash.Del(key); // replace default
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hash.Add(key, itm);
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}
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void DelDefault(GfmlItm elm) {
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GfmlItm toDel = null;
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for (Object subObj : list) {
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GfmlItm sub = (GfmlItm)subObj;
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if (String_.Eq(sub.Key(), elm.Key()))
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toDel = sub;
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}
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if (toDel != null) list.Del(toDel);
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}
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GfmlAtr FetchAtr(String key) {return GfmlAtr.as_(hash.Get_by(key));}
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List_adp list = List_adp_.new_(); Hash_adp hash = Hash_adp_.new_();
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public static GfmlItmKeys new_() {return new GfmlItmKeys();} GfmlItmKeys() {}
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@gplx.Internal protected static final String NullKey = "";
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}
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