components/dom_distiller/core/article_entry.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "components/dom_distiller/core/article_entry.h"
   6
   7 #include "base/logging.h"
   8 #include "sync/api/sync_change.h"
   9
  10 using sync_pb::EntitySpecifics;
  11 using sync_pb::ArticlePage;
  12 using sync_pb::ArticleSpecifics;
  13
  14 namespace dom_distiller {
  15
  16 bool IsEntryPageValid(const ArticleEntryPage& page) { return page.has_url(); }
  17
  18 bool IsEntryValid(const ArticleEntry& entry) {
  19   if (!entry.has_entry_id())
  20     return false;
  21   for (int i = 0; i < entry.pages_size(); ++i) {
  22     if (!IsEntryPageValid(entry.pages(i)))
  23       return false;
  24   }
  25   return true;
  26 }
  27
  28 bool AreEntriesEqual(const ArticleEntry& left, const ArticleEntry& right) {
  29   DCHECK(IsEntryValid(left));
  30   DCHECK(IsEntryValid(right));
  31   return left.SerializeAsString() == right.SerializeAsString();
  32 }
  33
  34 ArticleEntry EntryFromSpecifics(const EntitySpecifics& specifics) {
  35   DCHECK(specifics.has_article());
  36   const ArticleSpecifics& article_specifics = specifics.article();
  37   ArticleEntry entry = article_specifics;
  38   DCHECK(IsEntryValid(entry));
  39   return entry;
  40 }
  41
  42 EntitySpecifics SpecificsFromEntry(const ArticleEntry& entry) {
  43   DCHECK(IsEntryValid(entry));
  44   EntitySpecifics specifics;
  45   *specifics.mutable_article() = entry;
  46   return specifics;
  47 }
  48
  49 ArticleEntry GetEntryFromChange(const syncer::SyncChange& change) {
  50   DCHECK(change.IsValid());
  51   DCHECK(change.sync_data().IsValid());
  52   return EntryFromSpecifics(change.sync_data().GetSpecifics());
  53 }
  54
  55 std::string GetEntryIdFromSyncData(const syncer::SyncData& data) {
  56   const EntitySpecifics& entity = data.GetSpecifics();
  57   DCHECK(entity.has_article());
  58   const ArticleSpecifics& specifics = entity.article();
  59   DCHECK(specifics.has_entry_id());
  60   return specifics.entry_id();
  61 }
  62
  63 syncer::SyncData CreateLocalData(const ArticleEntry& entry) {
  64   EntitySpecifics specifics = SpecificsFromEntry(entry);
  65   const std::string& entry_id = entry.entry_id();
  66   return syncer::SyncData::CreateLocalData(entry_id, entry_id, specifics);
  67 }
  68
  69 }  // namespace dom_distiller