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File_shrink: Add initial classes for file_shrink

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pull/620/head
gnosygnu 8 years ago
parent 063cc43047
commit 2dc6d8c20b
4 changed files with 129 additions and 23 deletions
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47
400_xowa/src/gplx/fsdb/data/Fsd_bin_tbl.java
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@ -20,16 +20,16 @@ import gplx.core.primitives.*; import gplx.core.envs.*;
import gplx.dbs.*; import gplx.core.ios.*; import gplx.core.ios.streams.*;
import gplx.dbs.engines.sqlite.*;
public class Fsd_bin_tbl implements Rls_able {
private final String fld_owner_id, fld_owner_tid, fld_part_id, fld_data_url, fld_data;
public final String fld__owner_id, fld__owner_tid, fld__part_id, fld__data_url, fld__data;
private Db_conn conn; private Db_stmt stmt_insert, stmt_select, stmt_select_itm; private Bry_bfr tmp_bfr;
private final Bool_obj_ref saved_in_parts = Bool_obj_ref.n_();
public Fsd_bin_tbl(Db_conn conn, boolean schema_is_1) {
this.conn = conn;
fld_owner_id = flds.Add_int_pkey ("bin_owner_id");
fld_owner_tid = flds.Add_byte ("bin_owner_tid");
fld_part_id = flds.Add_int ("bin_part_id");
fld_data_url = flds.Add_str ("bin_data_url", 255);
fld_data = flds.Add_bry ("bin_data"); // mediumblob
fld__owner_id = flds.Add_int_pkey ("bin_owner_id");
fld__owner_tid = flds.Add_byte ("bin_owner_tid");
fld__part_id = flds.Add_int ("bin_part_id");
fld__data_url = flds.Add_str ("bin_data_url", 255);
fld__data = flds.Add_bry ("bin_data"); // mediumblob
conn.Rls_reg(this);
}
public String Tbl_name() {return tbl_name;} private final String tbl_name = "fsdb_bin";
@ -50,13 +50,16 @@ public class Fsd_bin_tbl implements Rls_able {
}
byte[] bin_ary = Io_stream_rdr_.Load_all_as_bry(tmp_bfr, bin_rdr);
stmt_insert.Clear()
.Val_int(fld_owner_id, id)
.Val_byte(fld_owner_tid, tid)
.Val_int(fld_part_id, Part_id_null)
.Val_str(fld_data_url, Data_url_null)
.Val_bry(fld_data, bin_ary)
.Val_int(fld__owner_id, id)
.Val_byte(fld__owner_tid, tid)
.Val_int(fld__part_id, Part_id_null)
.Val_str(fld__data_url, Data_url_null)
.Val_bry(fld__data, bin_ary)
.Exec_insert();
}
public void Update(Db_stmt stmt, int id, byte[] data) {
stmt.Clear().Val_bry(fld__data, data).Crt_int(fld__owner_id, id).Exec_update();
}
public Io_stream_rdr Select_as_rdr(int owner_id) {
byte[] rv = Select(owner_id, null);
return rv == null
@ -72,18 +75,18 @@ public class Fsd_bin_tbl implements Rls_able {
return true;
}
private byte[] Select(int owner_id, Io_url url) {
if (stmt_select == null) stmt_select = conn.Stmt_select(tbl_name, String_.Ary(fld_data), fld_owner_id);
Db_rdr rdr = stmt_select.Clear().Crt_int(fld_owner_id, owner_id).Exec_select__rls_manual();
if (stmt_select == null) stmt_select = conn.Stmt_select(tbl_name, String_.Ary(fld__data), fld__owner_id);
Db_rdr rdr = stmt_select.Clear().Crt_int(fld__owner_id, owner_id).Exec_select__rls_manual();
try {
if (rdr.Move_next()) {
byte[] rv = null;
try {rv = rdr.Read_bry(fld_data);}
try {rv = rdr.Read_bry(fld__data);}
catch (Exception e) {
if ( Op_sys.Cur().Tid_is_drd() // drd error when selecting large blobs (> 4 MB?)
&& url != null // called by Select_to_url
&& String_.Has(Err_.Message_lang(e), "get field slot from row") // get field slot from row 0 col 0 failed
) {
rdr.Save_bry_in_parts(url, tbl_name, fld_data, fld_owner_id, owner_id);
rdr.Save_bry_in_parts(url, tbl_name, fld__data, fld__owner_id, owner_id);
saved_in_parts.Val_y_();
}
}
@ -95,16 +98,16 @@ public class Fsd_bin_tbl implements Rls_able {
finally {rdr.Rls();}
}
public Fsd_bin_itm Select_as_itm(int owner_id) {
if (stmt_select_itm == null) stmt_select_itm = conn.Stmt_select(tbl_name, flds, fld_owner_id);
Db_rdr rdr = stmt_select_itm.Clear().Crt_int(fld_owner_id, owner_id).Exec_select__rls_manual();
if (stmt_select_itm == null) stmt_select_itm = conn.Stmt_select(tbl_name, flds, fld__owner_id);
Db_rdr rdr = stmt_select_itm.Clear().Crt_int(fld__owner_id, owner_id).Exec_select__rls_manual();
try {
if (rdr.Move_next()) {
return new Fsd_bin_itm
( rdr.Read_int(fld_owner_id)
, rdr.Read_byte(fld_owner_tid)
, rdr.Read_int(fld_part_id)
, rdr.Read_str(fld_data_url)
, rdr.Read_bry(fld_data)
( rdr.Read_int(fld__owner_id)
, rdr.Read_byte(fld__owner_tid)
, rdr.Read_int(fld__part_id)
, rdr.Read_str(fld__data_url)
, rdr.Read_bry(fld__data)
);
}
else

2
400_xowa/src/gplx/fsdb/meta/Fsm_bin_fil.java
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@ -19,7 +19,6 @@ package gplx.fsdb.meta; import gplx.*; import gplx.fsdb.*;
import gplx.core.ios.*; import gplx.core.ios.streams.*; import gplx.dbs.*;
import gplx.fsdb.data.*;
public class Fsm_bin_fil {
private final Fsd_bin_tbl tbl;
public Fsm_bin_fil(boolean schema_is_1, int id, Io_url url, String url_rel, Db_conn conn, long bin_len) {
this.id = id; this.url = url; this.url_rel = url_rel; this.conn = conn; this.bin_len = bin_len;
this.tbl = new Fsd_bin_tbl(conn, schema_is_1);
@ -29,6 +28,7 @@ public class Fsm_bin_fil {
public String Url_rel() {return url_rel;} private final String url_rel;
public long Bin_len() {return bin_len;} public void Bin_len_(long v) {bin_len = v;} private long bin_len;
public Db_conn Conn() {return conn;} private final Db_conn conn;
public Fsd_bin_tbl Tbl() {return tbl;} private final Fsd_bin_tbl tbl;
public boolean Select_to_url(int id, Io_url url) {return tbl.Select_to_url(id, url);}
public Io_stream_rdr Select_as_rdr(int id) {return tbl.Select_as_rdr(id);}
public Fsd_bin_itm Select_as_itm(int id) {return tbl.Select_as_itm(id);}

30
400_xowa/src/gplx/xowa/addons/bldrs/files/shrinks/Xoshrink_cmd.java
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@ -0,0 +1,30 @@
/*
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.xowa.addons.bldrs.files.shrinks; import gplx.*; import gplx.xowa.*; import gplx.xowa.addons.*; import gplx.xowa.addons.bldrs.*; import gplx.xowa.addons.bldrs.files.*;
import gplx.xowa.bldrs.*; import gplx.xowa.bldrs.wkrs.*;
public class Xoshrink_cmd extends Xob_cmd__base {
public Xoshrink_cmd(Xob_bldr bldr, Xowe_wiki wiki) {super(bldr, wiki);}
@Override public void Cmd_run() {
wiki.Init_assert();
new Xoshrink_mgr().Exec(wiki);
}
@Override public String Cmd_key() {return BLDR_CMD_KEY;} private static final String BLDR_CMD_KEY = "fsdb.shrink";
public static final Xob_cmd Prototype = new Xoshrink_cmd(null, null);
@Override public Xob_cmd Cmd_clone(Xob_bldr bldr, Xowe_wiki wiki) {return new Xoshrink_cmd(bldr, wiki);}
}

73
400_xowa/src/gplx/xowa/addons/bldrs/files/shrinks/Xoshrink_mgr.java
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@ -0,0 +1,73 @@
/*
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.xowa.addons.bldrs.files.shrinks; import gplx.*; import gplx.xowa.*; import gplx.xowa.addons.*; import gplx.xowa.addons.bldrs.*; import gplx.xowa.addons.bldrs.files.*;
import gplx.core.envs.*;
import gplx.dbs.*;
import gplx.fsdb.*; import gplx.fsdb.data.*; import gplx.fsdb.meta.*;
class Xoshrink_mgr {
private Io_url src_url, trg_url;
private Process_adp convert_cmd;
public void Exec(Xowe_wiki wiki) {
// init
src_url = wiki.Fsys_mgr().Root_dir().GenSubFil_nest("tmp", "shrink", "src.file");
trg_url = wiki.Fsys_mgr().Root_dir().GenSubFil_nest("tmp", "shrink", "trg.file");
Io_url convert_exe_url = wiki.Appe().Prog_mgr().App_resize_img().Exe_url();
convert_cmd = Process_adp.New(Gfo_usr_dlg_.Instance, wiki.Appe().Url_cmd_eval(), Process_adp.Run_mode_sync_timeout, 1 * 60, convert_exe_url.Raw(), "-resample ~{w}x~{h}");
// get bin_mgr
Fsm_bin_mgr bin_mgr = wiki.File__mnt_mgr().Mnts__get_main().Bin_mgr();
int len = bin_mgr.Dbs__len();
// loop bin_dbs
for (int i = 0; i < len; i++) {
Shrink(bin_mgr.Dbs__get_at(i));
}
}
private void Shrink(Fsm_bin_fil fil) {
// init
Fsd_bin_tbl tbl = fil.Tbl();
Db_conn conn = fil.Conn();
// prep for update
conn.Txn_bgn("tbl_update");
Db_stmt stmt = conn.Stmt_update(tbl.Tbl_name(), String_.Ary(tbl.fld__owner_id), tbl.fld__data);
// get rdr
Db_rdr rdr = conn.Stmt_select_all(tbl.Tbl_name(), tbl.Flds()).Exec_select__rls_auto();
try {
// loop each row and convert
while (rdr.Move_next()) {
// db.read and fs.save
int id = rdr.Read_int(tbl.fld__owner_id);
byte[] data = rdr.Read_bry(tbl.fld__data);
Io_mgr.Instance.SaveFilBry(src_url, data);
// convert
convert_cmd.Run();// get w and h
// fs.load and db.save
data = Io_mgr.Instance.LoadFilBry(trg_url);
tbl.Update(stmt, id, data);
}
} finally {
conn.Txn_end();
rdr.Rls();
stmt.Rls();
}
}
}
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