* mu-store refactoring
This commit is contained in:
Dirk-Jan C. Binnema
640
src/mu-store-write.cc
Normal file
640
src/mu-store-write.cc
Normal file
@ -0,0 +1,640 @@
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/* -*-mode: c++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8-*- */
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/*
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** Copyright (C) 2008-2011 Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
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**
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** This program is free software; you can redistribute it and/or modify it
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** under the terms of the GNU General Public License as published by the
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** Free Software Foundation; either version 3, or (at your option) any
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** later version.
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**
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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 General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software Foundation,
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** Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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**
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*/
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#if HAVE_CONFIG_H
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#include "config.h"
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#endif /*HAVE_CONFIG_H*/
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#include <cstdio>
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#include <xapian.h>
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#include <cstring>
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#include <stdexcept>
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#include "mu-store.h"
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#include "mu-store-priv.hh" /* _MuStore */
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#include "mu-msg.h"
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#include "mu-msg-part.h"
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#include "mu-store.h"
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#include "mu-util.h"
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#include "mu-str.h"
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#include "mu-date.h"
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#include "mu-flags.h"
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#include "mu-contacts.h"
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/* we cache these prefix strings, so we don't have to allocate the all
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* the time; this should save 10-20 string allocs per message */
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G_GNUC_CONST static const std::string&
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prefix (MuMsgFieldId mfid)
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{
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static std::string fields[MU_MSG_FIELD_ID_NUM];
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static bool initialized = false;
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if (G_UNLIKELY(!initialized)) {
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for (int i = 0; i != MU_MSG_FIELD_ID_NUM; ++i)
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fields[i] = std::string (1, mu_msg_field_xapian_prefix
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((MuMsgFieldId)i));
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initialized = true;
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}
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return fields[mfid];
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}
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static void
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add_synonym_for_flag (MuFlags flag, Xapian::WritableDatabase *db)
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{
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const std::string pfx(prefix(MU_MSG_FIELD_ID_FLAGS));
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db->clear_synonyms (pfx + mu_flag_name (flag));
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db->add_synonym (pfx + mu_flag_name (flag), pfx +
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(std::string(1, tolower(mu_flag_char (flag)))));
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}
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static void
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add_synonym_for_prio (MuMsgPrio prio, Xapian::WritableDatabase *db)
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{
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const std::string pfx (prefix(MU_MSG_FIELD_ID_PRIO));
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std::string s1 (pfx + mu_msg_prio_name (prio));
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std::string s2 (pfx + (std::string(1, mu_msg_prio_char (prio))));
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db->clear_synonyms (s1);
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db->clear_synonyms (s2);
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db->add_synonym (s1, s2);
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}
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static void
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add_synonyms (MuStore *store)
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{
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mu_flags_foreach ((MuFlagsForeachFunc)add_synonym_for_flag,
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store->db_writable());
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mu_msg_prio_foreach ((MuMsgPrioForeachFunc)add_synonym_for_prio,
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store->db_writable());
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}
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MuStore*
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mu_store_new_writable (const char* xpath, const char *contacts_cache,
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GError **err)
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{
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g_return_val_if_fail (xpath, NULL);
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try {
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MuStore *store;
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store = new _MuStore (xpath, contacts_cache, false);
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add_synonyms (store);
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return store;
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} MU_XAPIAN_CATCH_BLOCK_G_ERROR(err,MU_ERROR_XAPIAN);
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return NULL;
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}
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void
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mu_store_set_batch_size (MuStore *store, guint batchsize)
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{
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g_return_if_fail (store);
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store->set_batch_size (batchsize);
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}
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gboolean
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mu_store_set_metadata (MuStore *store, const char *key, const char *val)
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{
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g_return_val_if_fail (store, FALSE);
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g_return_val_if_fail (key, FALSE);
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g_return_val_if_fail (val, FALSE);
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try {
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store->db_writable()->set_metadata (key, val);
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return TRUE;
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} MU_XAPIAN_CATCH_BLOCK;
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return FALSE;
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}
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void
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mu_store_flush (MuStore *store)
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{
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g_return_if_fail (store);
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try {
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if (store->in_transaction())
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store->commit_transaction ();
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store->db_writable()->flush (); /* => commit, post X 1.1.x */
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} MU_XAPIAN_CATCH_BLOCK;
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}
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static void
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add_terms_values_date (Xapian::Document& doc, MuMsg *msg, MuMsgFieldId mfid)
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{
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time_t t;
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const char *datestr;
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t = (time_t)mu_msg_get_field_numeric (msg, mfid);
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if (t != 0) {
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datestr = mu_date_time_t_to_str_s (t, FALSE /*UTC*/);
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doc.add_value ((Xapian::valueno)mfid, datestr);
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}
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}
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/* TODO: we could pre-calculate the add_term values for FLAGS */
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/* pre-calculate; optimization */
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G_GNUC_CONST static const std::string&
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flag_val (char flagchar)
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{
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static const std::string
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pfx (prefix(MU_MSG_FIELD_ID_FLAGS)),
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/* xapian wants lowercase */
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draftstr (pfx + (char)tolower(mu_flag_char(MU_FLAG_DRAFT))),
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flaggedstr (pfx + (char)tolower(mu_flag_char(MU_FLAG_FLAGGED))),
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passedstr (pfx + (char)tolower(mu_flag_char(MU_FLAG_PASSED))),
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repliedstr (pfx + (char)tolower(mu_flag_char(MU_FLAG_REPLIED))),
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seenstr (pfx + (char)tolower(mu_flag_char(MU_FLAG_SEEN))),
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trashedstr (pfx + (char)tolower(mu_flag_char(MU_FLAG_TRASHED))),
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newstr (pfx + (char)tolower(mu_flag_char(MU_FLAG_NEW))),
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signedstr (pfx + mu_flag_char(MU_FLAG_SIGNED)),
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encryptedstr (pfx + mu_flag_char(MU_FLAG_ENCRYPTED)),
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has_attachstr (pfx + mu_flag_char(MU_FLAG_HAS_ATTACH)),
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unreadstr (pfx + mu_flag_char(MU_FLAG_UNREAD));
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switch (flagchar) {
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case 'D': return draftstr;
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case 'F': return flaggedstr;
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case 'P': return passedstr;
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case 'R': return repliedstr;
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case 'S': return seenstr;
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case 'T': return trashedstr;
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case 'N': return newstr;
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case 's': return signedstr;
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case 'x': return encryptedstr;
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case 'a': return has_attachstr;
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case 'u': return unreadstr;
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default:
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g_return_val_if_reached (flaggedstr);
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return flaggedstr;
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}
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}
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/* pre-calculate; optimization */
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G_GNUC_CONST static const std::string&
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prio_val (MuMsgPrio prio)
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{
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static const std::string pfx (prefix(MU_MSG_FIELD_ID_PRIO));
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static const std::string
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lowstr (pfx + std::string(1, mu_msg_prio_char(MU_MSG_PRIO_LOW))),
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normalstr (pfx + std::string(1, mu_msg_prio_char(MU_MSG_PRIO_NORMAL))),
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highstr (pfx + std::string(1, mu_msg_prio_char(MU_MSG_PRIO_HIGH)));
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switch (prio) {
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case MU_MSG_PRIO_LOW: return lowstr;
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case MU_MSG_PRIO_NORMAL: return normalstr;
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case MU_MSG_PRIO_HIGH: return highstr;
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default:
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g_return_val_if_reached (normalstr);
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return normalstr;
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}
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}
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static void
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add_terms_values_number (Xapian::Document& doc, MuMsg *msg, MuMsgFieldId mfid)
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{
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gint64 num = mu_msg_get_field_numeric (msg, mfid);
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const std::string numstr (Xapian::sortable_serialise((double)num));
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doc.add_value ((Xapian::valueno)mfid, numstr);
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if (mfid == MU_MSG_FIELD_ID_FLAGS) {
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const char *cur = mu_flags_to_str_s
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((MuFlags)num,(MuFlagType)MU_FLAG_TYPE_ANY);
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g_return_if_fail (cur);
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while (*cur) {
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doc.add_term (flag_val(*cur));
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++cur;
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}
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} else if (mfid == MU_MSG_FIELD_ID_PRIO)
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doc.add_term (prio_val((MuMsgPrio)num));
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}
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/* for string and string-list */
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static void
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add_terms_values_str (Xapian::Document& doc, char *val,
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MuMsgFieldId mfid)
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{
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/* the value is what we'll display; the unchanged original */
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if (mu_msg_field_xapian_value(mfid))
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doc.add_value ((Xapian::valueno)mfid, val);
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/* now, let's create some search terms... */
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if (mu_msg_field_normalize (mfid))
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mu_str_normalize_in_place (val, TRUE);
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if (mu_msg_field_xapian_escape (mfid))
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mu_str_ascii_xapian_escape_in_place (val);
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if (mu_msg_field_xapian_index (mfid)) {
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Xapian::TermGenerator termgen;
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termgen.set_document (doc);
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termgen.index_text_without_positions (val, 1, prefix(mfid));
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}
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if (mu_msg_field_xapian_term(mfid))
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doc.add_term (prefix(mfid) +
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std::string(val, 0, MU_STORE_MAX_TERM_LENGTH));
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}
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static void
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add_terms_values_string (Xapian::Document& doc, MuMsg *msg,
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MuMsgFieldId mfid)
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{
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const char *orig;
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char *val;
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size_t len;
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if (!(orig = mu_msg_get_field_string (msg, mfid)))
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return; /* nothing to do */
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/* try stack-allocation, it's much faster*/
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len = strlen (orig);
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val = (char*)(G_LIKELY(len < 1024)?g_alloca(len+1):g_malloc(len+1));
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strcpy (val, orig);
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add_terms_values_str (doc, val, mfid);
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if (!(G_LIKELY(len < 1024)))
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g_free (val);
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}
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static void
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add_terms_values_string_list (Xapian::Document& doc, MuMsg *msg,
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MuMsgFieldId mfid)
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{
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const GSList *lst;
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lst = mu_msg_get_field_string_list (msg, mfid);
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if (lst && mu_msg_field_xapian_value (mfid)) {
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gchar *str;
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str = mu_str_from_list (lst, ',');
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if (str)
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doc.add_value ((Xapian::valueno)mfid, str);
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g_free (str);
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}
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if (lst && mu_msg_field_xapian_term (mfid)) {
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while (lst) {
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size_t len;
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char *val;
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/* try stack-allocation, it's much faster*/
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len = strlen ((char*)lst->data);
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if (G_LIKELY(len < 1024))
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val = (char*)g_alloca(len+1);
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else
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val = (char*)g_malloc(len+1);
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strcpy (val, (char*)lst->data);
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add_terms_values_str (doc, val, mfid);
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if (!(G_LIKELY(len < 1024)))
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g_free (val);
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lst = g_slist_next ((GSList*)lst);
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}
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}
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}
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struct PartData {
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PartData (Xapian::Document& doc, MuMsgFieldId mfid):
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_doc (doc), _mfid(mfid) {}
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Xapian::Document _doc;
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MuMsgFieldId _mfid;
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};
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static void
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each_part (MuMsg *msg, MuMsgPart *part, PartData *pdata)
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{
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if (mu_msg_part_looks_like_attachment (part, TRUE) &&
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(part->file_name)) {
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char val[MU_STORE_MAX_TERM_LENGTH + 1];
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strncpy (val, part->file_name, sizeof(val));
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/* now, let's create a terms... */
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mu_str_normalize_in_place (val, TRUE);
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mu_str_ascii_xapian_escape_in_place (val);
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pdata->_doc.add_term (prefix(pdata->_mfid) +
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std::string(val, 0, MU_STORE_MAX_TERM_LENGTH));
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}
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}
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static void
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add_terms_values_attach (Xapian::Document& doc, MuMsg *msg,
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MuMsgFieldId mfid)
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{
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PartData pdata (doc, mfid);
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mu_msg_part_foreach (msg, (MuMsgPartForeachFunc)each_part, &pdata);
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}
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static void
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add_terms_values_body (Xapian::Document& doc, MuMsg *msg,
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MuMsgFieldId mfid)
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{
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const char *str;
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char *norm;
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if (mu_msg_get_flags(msg) & MU_FLAG_ENCRYPTED)
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return; /* ignore encrypted bodies */
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str = mu_msg_get_body_text (msg);
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if (!str) /* FIXME: html->txt fallback needed */
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str = mu_msg_get_body_html (msg);
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if (!str)
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return; /* no body... */
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Xapian::TermGenerator termgen;
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termgen.set_document(doc);
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norm = mu_str_normalize (str, TRUE);
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termgen.index_text_without_positions
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(norm, 1, prefix(mfid));
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g_free (norm);
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}
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struct _MsgDoc {
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Xapian::Document *_doc;
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MuMsg *_msg;
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MuStore *_store;
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};
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typedef struct _MsgDoc MsgDoc;
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static void
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add_terms_values (MuMsgFieldId mfid, MsgDoc* msgdoc)
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{
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/* note: contact-stuff (To/Cc/From) will handled in
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* add_contact_info, not here */
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if (!mu_msg_field_xapian_index(mfid) &&
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!mu_msg_field_xapian_term(mfid) &&
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!mu_msg_field_xapian_value(mfid))
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return;
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|
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switch (mfid) {
|
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case MU_MSG_FIELD_ID_DATE:
|
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add_terms_values_date (*msgdoc->_doc, msgdoc->_msg, mfid);
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break;
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case MU_MSG_FIELD_ID_BODY_TEXT:
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add_terms_values_body (*msgdoc->_doc, msgdoc->_msg, mfid);
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break;
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case MU_MSG_FIELD_ID_ATTACH:
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add_terms_values_attach (*msgdoc->_doc, msgdoc->_msg, mfid);
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break;
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default:
|
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if (mu_msg_field_is_numeric (mfid))
|
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add_terms_values_number (*msgdoc->_doc, msgdoc->_msg,
|
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mfid);
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else if (mu_msg_field_is_string (mfid))
|
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add_terms_values_string (*msgdoc->_doc,
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msgdoc->_msg,
|
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mfid);
|
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else if (mu_msg_field_is_string_list(mfid))
|
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add_terms_values_string_list (*msgdoc->_doc,
|
||||
msgdoc->_msg,
|
||||
mfid);
|
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else
|
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g_return_if_reached ();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static const std::string&
|
||||
xapian_pfx (MuMsgContact *contact)
|
||||
{
|
||||
static const std::string empty;
|
||||
|
||||
/* use ptr to string to prevent copy... */
|
||||
switch (contact->type) {
|
||||
case MU_MSG_CONTACT_TYPE_TO:
|
||||
return prefix(MU_MSG_FIELD_ID_TO);
|
||||
case MU_MSG_CONTACT_TYPE_FROM:
|
||||
return prefix(MU_MSG_FIELD_ID_FROM);
|
||||
case MU_MSG_CONTACT_TYPE_CC:
|
||||
return prefix(MU_MSG_FIELD_ID_CC);
|
||||
case MU_MSG_CONTACT_TYPE_BCC:
|
||||
return prefix(MU_MSG_FIELD_ID_BCC);
|
||||
default:
|
||||
g_warning ("unsupported contact type %u",
|
||||
(unsigned)contact->type);
|
||||
return empty;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static void
|
||||
each_contact_info (MuMsgContact *contact, MsgDoc *msgdoc)
|
||||
{
|
||||
const std::string pfx (xapian_pfx(contact));
|
||||
if (pfx.empty())
|
||||
return; /* unsupported contact type */
|
||||
|
||||
if (!mu_str_is_empty(contact->name)) {
|
||||
Xapian::TermGenerator termgen;
|
||||
termgen.set_document (*msgdoc->_doc);
|
||||
char *norm = mu_str_normalize (contact->name, TRUE);
|
||||
termgen.index_text_without_positions (norm, 1, pfx);
|
||||
g_free (norm);
|
||||
}
|
||||
|
||||
/* don't normalize e-mail address, but do lowercase it */
|
||||
if (!mu_str_is_empty(contact->address)) {
|
||||
char *escaped = mu_str_ascii_xapian_escape (contact->address);
|
||||
msgdoc->_doc->add_term
|
||||
(std::string (pfx + escaped, 0,
|
||||
MU_STORE_MAX_TERM_LENGTH));
|
||||
g_free (escaped);
|
||||
|
||||
/* store it also in our contacts cache */
|
||||
if (msgdoc->_store->contacts())
|
||||
mu_contacts_add (msgdoc->_store->contacts(),
|
||||
contact->address, contact->name,
|
||||
mu_msg_get_date(msgdoc->_msg));
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
gboolean
|
||||
mu_store_store_msg (MuStore *store, MuMsg *msg, gboolean replace)
|
||||
{
|
||||
g_return_val_if_fail (store, FALSE);
|
||||
g_return_val_if_fail (msg, FALSE);
|
||||
|
||||
try {
|
||||
Xapian::Document newdoc;
|
||||
Xapian::docid id;
|
||||
MsgDoc msgdoc = { &newdoc, msg, store };
|
||||
const std::string uid(store->get_message_uid(msg));
|
||||
|
||||
if (!store->in_transaction())
|
||||
store->begin_transaction();
|
||||
|
||||
/* we must add a unique term, so we can replace
|
||||
* matching documents */
|
||||
newdoc.add_term (uid);
|
||||
mu_msg_field_foreach
|
||||
((MuMsgFieldForEachFunc)add_terms_values, &msgdoc);
|
||||
/* also store the contact-info as separate terms */
|
||||
mu_msg_contact_foreach
|
||||
(msg,
|
||||
(MuMsgContactForeachFunc)each_contact_info,
|
||||
&msgdoc);
|
||||
|
||||
/* add_document is slightly
|
||||
faster, we can use it when
|
||||
* we know the document does not exist yet, eg., in
|
||||
* case of a rebuild */
|
||||
if (replace) /* we replace all existing documents for this file */
|
||||
id = store->db_writable()->replace_document (uid, newdoc);
|
||||
else
|
||||
id = store->db_writable()->add_document (newdoc);
|
||||
|
||||
if (store->inc_processed() % store->batch_size() == 0)
|
||||
store->commit_transaction();
|
||||
|
||||
return TRUE;
|
||||
|
||||
} MU_XAPIAN_CATCH_BLOCK;
|
||||
|
||||
if (store->in_transaction())
|
||||
store->rollback_transaction();
|
||||
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
|
||||
gboolean
|
||||
mu_store_store_path (MuStore *store, const char *path)
|
||||
{
|
||||
MuMsg *msg;
|
||||
GError *err;
|
||||
gboolean rv;
|
||||
|
||||
g_return_val_if_fail (store, FALSE);
|
||||
g_return_val_if_fail (path, FALSE);
|
||||
|
||||
err = NULL;
|
||||
msg = mu_msg_new_from_file (path, NULL, &err);
|
||||
|
||||
if (!msg) {
|
||||
if (err) {
|
||||
g_warning ("failed to create message %s to store: %s",
|
||||
path, err->message);
|
||||
g_error_free (err);
|
||||
} else
|
||||
g_warning ("failed to create message %s to store", path);
|
||||
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
rv = mu_store_store_msg (store, msg, TRUE);
|
||||
if (!rv)
|
||||
g_warning ("failed to store %s", path);
|
||||
|
||||
mu_msg_unref (msg);
|
||||
|
||||
return rv;
|
||||
}
|
||||
|
||||
|
||||
XapianWritableDatabase*
|
||||
mu_store_get_writable_database (MuStore *store)
|
||||
{
|
||||
g_return_val_if_fail (store, NULL);
|
||||
|
||||
return (XapianWritableDatabase*)store->db_writable();
|
||||
}
|
||||
|
||||
|
||||
gboolean
|
||||
mu_store_remove_path (MuStore *store, const char *msgpath)
|
||||
{
|
||||
g_return_val_if_fail (store, FALSE);
|
||||
g_return_val_if_fail (msgpath, FALSE);
|
||||
|
||||
try {
|
||||
const std::string uid (store->get_message_uid (msgpath));
|
||||
|
||||
store->db_writable()->delete_document (uid);
|
||||
store->inc_processed();
|
||||
|
||||
return TRUE;
|
||||
|
||||
} MU_XAPIAN_CATCH_BLOCK_RETURN (FALSE);
|
||||
}
|
||||
|
||||
|
||||
gboolean
|
||||
mu_store_set_timestamp (MuStore *store, const char* msgpath,
|
||||
time_t stamp)
|
||||
{
|
||||
char buf[21];
|
||||
|
||||
g_return_val_if_fail (store, FALSE);
|
||||
g_return_val_if_fail (msgpath, FALSE);
|
||||
|
||||
sprintf (buf, "%" G_GUINT64_FORMAT, (guint64)stamp);
|
||||
return mu_store_set_metadata (store, msgpath, buf);
|
||||
}
|
||||
|
||||
|
||||
Reference in New Issue
Block a user