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v2.7.2.1

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gnosygnu
2015-07-12 21:10:02 -04:00
commit 794b5a232f
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48
400_xowa/src/gplx/cache/Gfo_cache_mgr_base.java vendored Normal file
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/*
XOWA: the XOWA Offline Wiki Application
Copyright (C) 2012 gnosygnu@gmail.com
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package gplx.cache; import gplx.*;
public class Gfo_cache_mgr_base {
private Ordered_hash hash = Ordered_hash_.new_bry_();
public int Compress_max() {return compress_max;} public void Compress_max_(int v) {compress_max = v;} private int compress_max = 16;
public int Compress_to() {return compress_to;} public void Compress_to_(int v) {compress_to = v;} private int compress_to = 8;
protected Object Base_get_or_null(byte[] key) {
Object rv_obj = hash.Get_by(key);
return rv_obj == null ? null : ((Gfo_cache_itm)rv_obj).Val();
}
protected void Base_add(byte[] key, Object val) {
if (hash.Count() >= compress_max) Compress();
Gfo_cache_itm itm = new Gfo_cache_itm(key, val);
hash.Add(key, itm);
}
protected void Base_del(byte[] key) {
hash.Del(key);
}
public void Compress() {
hash.Sort_by(Gfo_cache_itm_comparer.Touched_asc);
int del_len = hash.Count() - compress_to;
List_adp del_list = List_adp_.new_();
for (int i = 0; i < del_len; i++) {
Gfo_cache_itm itm = (Gfo_cache_itm)hash.Get_at(i);
del_list.Add(itm);
}
for (int i = 0; i < del_len; i++) {
Gfo_cache_itm itm = (Gfo_cache_itm)del_list.Get_at(i);
hash.Del(itm.Key());
}
}
}

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400_xowa/src/gplx/cache/Gfo_cache_mgr_bry.java vendored Normal file
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/*
XOWA: the XOWA Offline Wiki Application
Copyright (C) 2012 gnosygnu@gmail.com
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package gplx.cache; import gplx.*;
import gplx.core.primitives.*;
public class Gfo_cache_mgr_bry extends Gfo_cache_mgr_base {
public Object Get_or_null(byte[] key) {return Base_get_or_null(key);}
public void Add(byte[] key, Object val) {Base_add(key, val);}
public void Del(byte[] key) {Base_del(key);}
}
class Gfo_cache_itm {
public Gfo_cache_itm(Object key, Object val) {this.key = key; this.val = val; this.Touched_update();}
public Object Key() {return key;} private Object key;
public Object Val() {return val;} private Object val;
public long Touched() {return touched;} private long touched;
public Gfo_cache_itm Touched_update() {touched = Env_.TickCount(); return this;}
}
class Gfo_cache_itm_comparer implements gplx.lists.ComparerAble {
public int compare(Object lhsObj, Object rhsObj) {
Gfo_cache_itm lhs = (Gfo_cache_itm)lhsObj;
Gfo_cache_itm rhs = (Gfo_cache_itm)rhsObj;
return Long_.Compare(lhs.Touched(), rhs.Touched());
}
public static final Gfo_cache_itm_comparer Touched_asc = new Gfo_cache_itm_comparer();
}
class Io_url_exists_mgr {
private gplx.cache.Gfo_cache_mgr_bry cache_mgr = new gplx.cache.Gfo_cache_mgr_bry();
public Io_url_exists_mgr() {
cache_mgr.Compress_max_(Int_.MaxValue);
}
public boolean Has(Io_url url) {
byte[] url_key = url.RawBry();
Object rv_obj = cache_mgr.Get_or_null(url_key);
if (rv_obj != null) return ((Bool_obj_ref)rv_obj).Val(); // cached val exists; use it
boolean exists = Io_mgr.I.ExistsFil(url);
cache_mgr.Add(url_key, Bool_obj_ref.new_(exists));
return exists;
}
}