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gecko/mobile/android/base/db/LocalBrowserDB.java

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/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Android code.
*
* The Initial Developer of the Original Code is Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2011
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Lucas Rocha <lucasr@mozilla.com>
* Richard Newman <rnewman@mozilla.com>
* Margaret Leibovic <margaret.leibovic@gmail.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
package org.mozilla.gecko.db;
import java.io.ByteArrayOutputStream;
import org.mozilla.gecko.db.BrowserContract.Bookmarks;
import org.mozilla.gecko.db.BrowserContract.History;
import org.mozilla.gecko.db.BrowserContract.ImageColumns;
import org.mozilla.gecko.db.BrowserContract.Images;
import org.mozilla.gecko.db.BrowserContract.URLColumns;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.ContentValues;
import android.database.ContentObserver;
import android.database.Cursor;
import android.database.CursorWrapper;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.net.Uri;
import android.provider.Browser;
import android.util.Log;
public class LocalBrowserDB implements BrowserDB.BrowserDBIface {
// Same as android.provider.Browser for consistency.
private static final int MAX_HISTORY_COUNT = 250;
// Same as android.provider.Browser for consistency.
public static final int TRUNCATE_N_OLDEST = 5;
// Calculate these once, at initialization. isLoggable is too expensive to
// have in-line in each log call.
private static final String LOGTAG = "GeckoLocalBrowserDB";
private static boolean logDebug = Log.isLoggable(LOGTAG, Log.DEBUG);
protected static void debug(String message) {
if (logDebug) {
Log.d(LOGTAG, message);
}
}
private final String mProfile;
private long mMobileFolderId;
private long mTagsFolderId;
private final Uri mBookmarksUriWithProfile;
private final Uri mParentsUriWithProfile;
private final Uri mHistoryUriWithProfile;
private final Uri mImagesUriWithProfile;
private final Uri mDeletedHistoryUriWithProfile;
private static final String[] DEFAULT_BOOKMARK_COLUMNS =
new String[] { Bookmarks._ID,
Bookmarks.GUID,
Bookmarks.URL,
Bookmarks.TITLE,
Bookmarks.IS_FOLDER,
Bookmarks.PARENT,
Bookmarks.FAVICON };
public LocalBrowserDB(String profile) {
mProfile = profile;
mMobileFolderId = -1;
mTagsFolderId = -1;
mBookmarksUriWithProfile = appendProfile(Bookmarks.CONTENT_URI);
mParentsUriWithProfile = appendProfile(Bookmarks.PARENTS_CONTENT_URI);
mHistoryUriWithProfile = appendProfile(History.CONTENT_URI);
mImagesUriWithProfile = appendProfile(Images.CONTENT_URI);
mDeletedHistoryUriWithProfile = mHistoryUriWithProfile.buildUpon().
appendQueryParameter(BrowserContract.PARAM_SHOW_DELETED, "1").build();
}
private Uri historyUriWithLimit(int limit) {
return mHistoryUriWithProfile.buildUpon().appendQueryParameter(BrowserContract.PARAM_LIMIT,
String.valueOf(limit)).build();
}
private Uri appendProfile(Uri uri) {
return uri.buildUpon().appendQueryParameter(BrowserContract.PARAM_PROFILE, mProfile).build();
}
private Cursor filterAllSites(ContentResolver cr, String[] projection, CharSequence constraint, int limit, CharSequence urlFilter) {
Cursor c = cr.query(historyUriWithLimit(limit),
projection,
(urlFilter != null ? "(" + History.URL + " NOT LIKE ? ) AND " : "" ) +
"(" + History.URL + " LIKE ? OR " + History.TITLE + " LIKE ?)",
urlFilter == null ? new String[] {"%" + constraint.toString() + "%", "%" + constraint.toString() + "%"} :
new String[] {urlFilter.toString(), "%" + constraint.toString() + "%", "%" + constraint.toString() + "%"},
// ORDER BY is number of visits times a multiplier from 1 - 120 of how recently the site
// was accessed with a site accessed today getting 120 and a site accessed 119 or more
// days ago getting 1
History.VISITS + " * MAX(1, (" +
History.DATE_LAST_VISITED + " - " + System.currentTimeMillis() + ") / 86400000 + 120) DESC");
return new LocalDBCursor(c);
}
public Cursor filter(ContentResolver cr, CharSequence constraint, int limit) {
return filterAllSites(cr,
new String[] { History._ID,
History.URL,
History.TITLE,
History.FAVICON },
constraint,
limit,
null);
}
public Cursor getTopSites(ContentResolver cr, int limit) {
return filterAllSites(cr,
new String[] { History._ID,
History.URL,
History.TITLE,
History.THUMBNAIL },
"",
limit,
BrowserDB.ABOUT_PAGES_URL_FILTER);
}
private void truncateHistory(ContentResolver cr) {
Cursor cursor = null;
try {
cursor = cr.query(mHistoryUriWithProfile,
new String[] { History._ID },
null,
null,
History.DATE_LAST_VISITED + " ASC");
if (cursor.getCount() < MAX_HISTORY_COUNT)
return;
if (cursor.moveToFirst()) {
for (int i = 0; i < TRUNCATE_N_OLDEST; i++) {
Uri historyUri = ContentUris.withAppendedId(History.CONTENT_URI, cursor.getLong(0));
cr.delete(appendProfile(historyUri), null, null);
if (!cursor.moveToNext())
break;
}
}
} finally {
if (cursor != null)
cursor.close();
}
}
public void updateVisitedHistory(ContentResolver cr, String uri) {
long now = System.currentTimeMillis();
Cursor cursor = null;
try {
final String[] projection = new String[] {
History._ID, // 0
History.VISITS, // 1
};
cursor = cr.query(mDeletedHistoryUriWithProfile,
projection,
History.URL + " = ?",
new String[] { uri },
null);
if (cursor.moveToFirst()) {
ContentValues values = new ContentValues();
values.put(History.VISITS, cursor.getInt(1) + 1);
values.put(History.DATE_LAST_VISITED, now);
// Restore deleted record if possible
values.put(History.IS_DELETED, 0);
Uri historyUri = ContentUris.withAppendedId(History.CONTENT_URI, cursor.getLong(0));
cr.update(appendProfile(historyUri), values, null, null);
} else {
// Ensure we don't blow up our database with too
// many history items.
truncateHistory(cr);
ContentValues values = new ContentValues();
values.put(History.URL, uri);
values.put(History.VISITS, 1);
values.put(History.DATE_LAST_VISITED, now);
values.put(History.TITLE, uri);
cr.insert(mHistoryUriWithProfile, values);
}
} finally {
if (cursor != null)
cursor.close();
}
}
public void updateHistoryTitle(ContentResolver cr, String uri, String title) {
ContentValues values = new ContentValues();
values.put(History.TITLE, title);
cr.update(mHistoryUriWithProfile,
values,
History.URL + " = ?",
new String[] { uri });
}
public void updateHistoryEntry(ContentResolver cr, String uri, String title,
long date, int visits) {
int oldVisits = 0;
Cursor cursor = null;
try {
cursor = cr.query(mHistoryUriWithProfile,
new String[] { History.VISITS },
History.URL + " = ?",
new String[] { uri },
null);
if (cursor.moveToFirst()) {
oldVisits = cursor.getInt(0);
}
} finally {
if (cursor != null)
cursor.close();
}
ContentValues values = new ContentValues();
values.put(History.DATE_LAST_VISITED, date);
values.put(History.VISITS, oldVisits + visits);
if (title != null) {
values.put(History.TITLE, title);
}
cr.update(mHistoryUriWithProfile,
values,
History.URL + " = ?",
new String[] { uri });
}
public Cursor getAllVisitedHistory(ContentResolver cr) {
Cursor c = cr.query(mHistoryUriWithProfile,
new String[] { History.URL },
History.VISITS + " > 0",
null,
null);
return new LocalDBCursor(c);
}
public Cursor getRecentHistory(ContentResolver cr, int limit) {
Cursor c = cr.query(historyUriWithLimit(limit),
new String[] { History._ID,
History.URL,
History.TITLE,
History.FAVICON,
History.DATE_LAST_VISITED,
History.VISITS },
History.DATE_LAST_VISITED + " > 0",
null,
History.DATE_LAST_VISITED + " DESC");
return new LocalDBCursor(c);
}
public int getMaxHistoryCount() {
return MAX_HISTORY_COUNT;
}
public void clearHistory(ContentResolver cr) {
cr.delete(mHistoryUriWithProfile, null, null);
}
// This method filters out the root folder and the tags folder, since we
// don't want to see those in the UI
public Cursor getBookmarksInFolder(ContentResolver cr, long folderId) {
Cursor c = null;
if (folderId == Bookmarks.FIXED_ROOT_ID) {
// Because of sync, we can end up with some additional records under
// the root node that we don't want to see. Since sync doesn't
// want to run into problems deleting these, we can just ignore them
// by querying specifically for only the folders we care about.
c = cr.query(mBookmarksUriWithProfile,
DEFAULT_BOOKMARK_COLUMNS,
Bookmarks.PARENT + " = ? AND (" +
Bookmarks.GUID + " = ? OR " +
Bookmarks.GUID + " = ? OR " +
Bookmarks.GUID + " = ? OR " +
Bookmarks.GUID + " = ?)",
new String[] { String.valueOf(folderId),
Bookmarks.MOBILE_FOLDER_GUID,
Bookmarks.TOOLBAR_FOLDER_GUID,
Bookmarks.MENU_FOLDER_GUID,
Bookmarks.UNFILED_FOLDER_GUID },
null);
} else {
c = cr.query(mBookmarksUriWithProfile,
DEFAULT_BOOKMARK_COLUMNS,
Bookmarks.PARENT + " = ? ",
new String[] { String.valueOf(folderId) },
null);
}
return new LocalDBCursor(c);
}
public boolean isBookmark(ContentResolver cr, String uri) {
Cursor cursor = cr.query(mBookmarksUriWithProfile,
new String[] { Bookmarks._ID },
Bookmarks.URL + " = ?",
new String[] { uri },
Bookmarks.URL);
int count = cursor.getCount();
cursor.close();
return (count == 1);
}
public String getUrlForKeyword(ContentResolver cr, String keyword) {
Cursor cursor = cr.query(mBookmarksUriWithProfile,
new String[] { Bookmarks.URL },
Bookmarks.KEYWORD + " = ?",
new String[] { keyword },
null);
if (!cursor.moveToFirst()) {
cursor.close();
return null;
}
String url = cursor.getString(cursor.getColumnIndexOrThrow(Bookmarks.URL));
cursor.close();
return url;
}
private long getMobileBookmarksFolderId(ContentResolver cr) {
if (mMobileFolderId >= 0)
return mMobileFolderId;
mMobileFolderId = getFolderIdFromGuid(cr, Bookmarks.MOBILE_FOLDER_GUID);
return mMobileFolderId;
}
private long getFolderIdFromGuid(ContentResolver cr, String guid) {
long folderId = -1;
Cursor c = null;
try {
c = cr.query(mBookmarksUriWithProfile,
new String[] { Bookmarks._ID },
Bookmarks.GUID + " = ?",
new String[] { guid },
null);
if (c.moveToFirst())
folderId = c.getLong(c.getColumnIndexOrThrow(Bookmarks._ID));
} finally {
if (c != null)
c.close();
}
return folderId;
}
/**
* Find parents of records that match the provided criteria, and bump their
* modified timestamp.
*/
protected void bumpParents(ContentResolver cr, String param, String value) {
ContentValues values = new ContentValues();
values.put(Bookmarks.DATE_MODIFIED, System.currentTimeMillis());
String where = param + " = ?";
String[] args = new String[] { value };
int updated = cr.update(mParentsUriWithProfile, values, where, args);
debug("Updated " + updated + " rows to new modified time.");
}
public void addBookmark(ContentResolver cr, String title, String uri) {
long folderId = getMobileBookmarksFolderId(cr);
if (folderId < 0)
return;
final long now = System.currentTimeMillis();
ContentValues values = new ContentValues();
values.put(Browser.BookmarkColumns.TITLE, title);
values.put(Bookmarks.URL, uri);
values.put(Bookmarks.PARENT, folderId);
values.put(Bookmarks.DATE_MODIFIED, now);
// Restore deleted record if possible
values.put(Bookmarks.IS_DELETED, 0);
Uri contentUri = mBookmarksUriWithProfile;
int updated = cr.update(contentUri,
values,
Bookmarks.URL + " = ?",
new String[] { uri });
if (updated == 0)
cr.insert(contentUri, values);
// Bump parent modified time using its ID.
debug("Bumping parent modified time for addition to: " + folderId);
final String where = Bookmarks._ID + " = ?";
final String[] args = new String[] { String.valueOf(folderId) };
ContentValues bumped = new ContentValues();
bumped.put(Bookmarks.DATE_MODIFIED, now);
updated = cr.update(contentUri, bumped, where, args);
debug("Updated " + updated + " rows to new modified time.");
}
public void removeBookmark(ContentResolver cr, int id) {
Uri contentUri = mBookmarksUriWithProfile;
// Do this now so that the item still exists!
final String idString = String.valueOf(id);
bumpParents(cr, Bookmarks._ID, idString);
final String[] idArgs = new String[] { idString };
final String idEquals = Bookmarks._ID + " = ?";
cr.delete(contentUri, idEquals, idArgs);
}
public void removeBookmarksWithURL(ContentResolver cr, String uri) {
Uri contentUri = mBookmarksUriWithProfile;
// Do this now so that the items still exist!
bumpParents(cr, Bookmarks.URL, uri);
final String[] urlArgs = new String[] { uri };
final String urlEquals = Bookmarks.URL + " = ?";
cr.delete(contentUri, urlEquals, urlArgs);
}
public void registerBookmarkObserver(ContentResolver cr, ContentObserver observer) {
Uri uri = mBookmarksUriWithProfile;
cr.registerContentObserver(uri, false, observer);
}
public void updateBookmark(ContentResolver cr, String oldUri, String uri, String title, String keyword) {
ContentValues values = new ContentValues();
values.put(Browser.BookmarkColumns.TITLE, title);
values.put(Bookmarks.URL, uri);
values.put(Bookmarks.KEYWORD, keyword);
cr.update(mBookmarksUriWithProfile,
values,
Bookmarks.URL + " = ?",
new String[] { oldUri });
}
public BitmapDrawable getFaviconForUrl(ContentResolver cr, String uri) {
Cursor c = cr.query(mImagesUriWithProfile,
new String[] { Images.FAVICON },
Images.URL + " = ?",
new String[] { uri },
null);
if (!c.moveToFirst()) {
c.close();
return null;
}
int faviconIndex = c.getColumnIndexOrThrow(Images.FAVICON);
byte[] b = c.getBlob(faviconIndex);
c.close();
if (b == null)
return null;
Bitmap bitmap = BitmapFactory.decodeByteArray(b, 0, b.length);
return new BitmapDrawable(bitmap);
}
public void updateFaviconForUrl(ContentResolver cr, String uri,
BitmapDrawable favicon) {
Bitmap bitmap = favicon.getBitmap();
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 100, stream);
ContentValues values = new ContentValues();
values.put(Images.FAVICON, stream.toByteArray());
values.put(Images.URL, uri);
// Restore deleted record if possible
values.put(Images.IS_DELETED, 0);
int updated = cr.update(mImagesUriWithProfile,
values,
Images.URL + " = ?",
new String[] { uri });
if (updated == 0)
cr.insert(mImagesUriWithProfile, values);
}
public void updateThumbnailForUrl(ContentResolver cr, String uri,
BitmapDrawable thumbnail) {
Bitmap bitmap = thumbnail.getBitmap();
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 0, stream);
ContentValues values = new ContentValues();
values.put(Images.THUMBNAIL, stream.toByteArray());
values.put(Images.URL, uri);
// Restore deleted record if possible
values.put(Images.IS_DELETED, 0);
int updated = cr.update(mImagesUriWithProfile,
values,
Images.URL + " = ?",
new String[] { uri });
if (updated == 0)
cr.insert(mImagesUriWithProfile, values);
}
public byte[] getThumbnailForUrl(ContentResolver cr, String uri) {
Cursor c = cr.query(mImagesUriWithProfile,
new String[] { Images.THUMBNAIL },
Images.URL + " = ?",
new String[] { uri },
null);
if (!c.moveToFirst()) {
c.close();
return null;
}
int thumbnailIndex = c.getColumnIndexOrThrow(Images.THUMBNAIL);
byte[] b = c.getBlob(thumbnailIndex);
c.close();
return b;
}
private static class LocalDBCursor extends CursorWrapper {
public LocalDBCursor(Cursor c) {
super(c);
}
private String translateColumnName(String columnName) {
if (columnName.equals(BrowserDB.URLColumns.URL)) {
columnName = URLColumns.URL;
} else if (columnName.equals(BrowserDB.URLColumns.TITLE)) {
columnName = URLColumns.TITLE;
} else if (columnName.equals(BrowserDB.URLColumns.FAVICON)) {
columnName = ImageColumns.FAVICON;
} else if (columnName.equals(BrowserDB.URLColumns.THUMBNAIL)) {
columnName = ImageColumns.THUMBNAIL;
} else if (columnName.equals(BrowserDB.URLColumns.DATE_LAST_VISITED)) {
columnName = History.DATE_LAST_VISITED;
} else if (columnName.equals(BrowserDB.URLColumns.VISITS)) {
columnName = History.VISITS;
}
return columnName;
}
@Override
public int getColumnIndex(String columnName) {
return super.getColumnIndex(translateColumnName(columnName));
}
@Override
public int getColumnIndexOrThrow(String columnName) {
return super.getColumnIndexOrThrow(translateColumnName(columnName));
}
}
}
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