Media Galleries API - Picasa: Change PMP Parsing to deal with PlatformFile.

chrome/browser/media_galleries/fileapi/picasa/pmp_table_reader.cc

-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "chrome/browser/media_galleries/fileapi/picasa/pmp_table_reader.h"
-
-#include <algorithm>
-
-#include "base/file_util.h"
-#include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/strings/utf_string_conversions.h"
-#include "base/threading/thread_restrictions.h"
-#include "chrome/browser/media_galleries/fileapi/picasa/pmp_column_reader.h"
-
-namespace picasa {
-
-namespace {
-
-COMPILE_ASSERT(sizeof(double) == 8, double_must_be_8_bytes_long);
-
-}  // namespace
-
-PmpTableReader::PmpTableReader(const std::string& table_name,
-                               const base::FilePath& directory_path)
-    : initialized_(false),
-      table_name_(table_name),
-      directory_path_(directory_path),
-      max_row_count_(0) {
-  base::ThreadRestrictions::AssertIOAllowed();
-
-  if (!file_util::DirectoryExists(directory_path_))
-    return;
-
-  std::string indicator_file_name = table_name_ + "_0";
-
-  base::FilePath indicator_file = directory_path_.Append(
-      base::FilePath::FromUTF8Unsafe(indicator_file_name));
-
-  // Look for the indicator_file file, indicating table existence.
-  initialized_ = file_util::PathExists(indicator_file) &&
-                 !file_util::DirectoryExists(indicator_file);
-}
-
-PmpTableReader::~PmpTableReader() {}
-
-const PmpColumnReader* PmpTableReader::AddColumn(
-    const std::string& column_name, const PmpFieldType expected_type) {
-  if (!initialized_)
-    return NULL;
-
-  std::string filename = table_name_ + "_" + column_name + "." + kPmpExtension;
-
-  base::FilePath column_file_path = directory_path_.Append(
-        base::FilePath::FromUTF8Unsafe(filename));
-  scoped_ptr<PmpColumnReader> column_reader(new PmpColumnReader());
-
-  uint32 row_count;
-  if (!column_reader->Init(column_file_path, expected_type, &row_count))
-    return NULL;
-
-  column_readers_.push_back(column_reader.release());
-  column_map_[column_name] = column_readers_.back();
-
-  max_row_count_ = std::max(max_row_count_, row_count);
-
-  return column_readers_.back();
-}
-
-uint32 PmpTableReader::RowCount() const {
-  return max_row_count_;
-}
-
-std::map<std::string, const PmpColumnReader*> PmpTableReader::Columns() const {
-  return column_map_;
-}
-
-}  // namespace picasa