/*
* Copyright 2010 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.samsung.android.remindme;
import android.content.ContentProvider;
import android.content.ContentValues;
import android.content.Context;
import android.content.UriMatcher;
import android.content.res.Resources;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.database.sqlite.SQLiteQueryBuilder;
import android.net.Uri;
import android.provider.ContactsContract;
import android.text.TextUtils;
import android.util.Log;
import java.util.HashMap;
/**
* Provides access to a database of alerts. Each alert has a targetId, the alert
* itself, a creation date and a modified data.
*/
public class RemindMeProvider extends ContentProvider {
static final String TAG = Config.makeLogTag(RemindMeProvider.class);
private static final String DATABASE_NAME = "remindme.db";
private static final int DATABASE_VERSION = 5;
private static final String NOTES_TABLE_NAME = "alerts";
private static HashMap<String, String> sAlertsProjectionMap;
private static final int NOTES = 1;
private static final int NOTE_ID = 2;
private static final UriMatcher sUriMatcher;
/**
* This class helps open, create, and upgrade the database file.
*/
private static class DatabaseHelper extends SQLiteOpenHelper {
private Context mContext;
DatabaseHelper(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
mContext = context;
}
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL("CREATE TABLE " + NOTES_TABLE_NAME + " ("
+ RemindMeContract.Alerts._ID + " INTEGER PRIMARY KEY,"
+ RemindMeContract.Alerts.SERVER_ID + " TEXT,"
+ RemindMeContract.Alerts.ACCOUNT_NAME + " TEXT,"
+ RemindMeContract.Alerts.TITLE + " TEXT,"
+ RemindMeContract.Alerts.BODY + " TEXT NOT NULL DEFAULT '',"
+ RemindMeContract.Alerts.CREATED_DATE + " INTEGER NOT NULL DEFAULT 0,"
+ RemindMeContract.Alerts.PENDING_DELETE + " BOOLEAN NOT NULL DEFAULT 0,"
+ RemindMeContract.Alerts.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT 0"
+ ");");
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
SyncAdapter.clearSyncData(mContext);
Log.w(TAG, "Upgrading database from version " + oldVersion + " to " + newVersion
+ ", which will destroy all old data");
db.execSQL("DROP TABLE IF EXISTS " + NOTES_TABLE_NAME);
onCreate(db);
}
}
private DatabaseHelper mOpenHelper;
@Override
public boolean onCreate() {
mOpenHelper = new DatabaseHelper(getContext());
return true;
}
@Override
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
String sortOrder) {
SQLiteQueryBuilder qb = new SQLiteQueryBuilder();
qb.setTables(NOTES_TABLE_NAME);
switch (sUriMatcher.match(uri)) {
case NOTES:
qb.setProjectionMap(sAlertsProjectionMap);
qb.appendWhere(RemindMeContract.Alerts.ACCOUNT_NAME + "=");
qb.appendWhereEscapeString(uri.getPathSegments().get(1));
break;
case NOTE_ID:
qb.setProjectionMap(sAlertsProjectionMap);
qb.appendWhere(RemindMeContract.Alerts.ACCOUNT_NAME + "=");
qb.appendWhereEscapeString(uri.getPathSegments().get(1));
qb.appendWhere(" AND ");
qb.appendWhere(RemindMeContract.Alerts._ID + "=" + uri.getPathSegments().get(2));
break;
default:
throw new IllegalArgumentException("Unknown URI " + uri);
}
// If no sort order is specified use the default
String orderBy;
if (TextUtils.isEmpty(sortOrder)) {
orderBy = RemindMeContract.Alerts.DEFAULT_SORT_ORDER;
} else {
orderBy = sortOrder;
}
// Get the database and run the query
SQLiteDatabase db = mOpenHelper.getReadableDatabase();
Cursor c = qb.query(db, projection, selection, selectionArgs, null, null, orderBy);
// Tell the cursor what uri to watch, so it knows when its source data
// changes
c.setNotificationUri(getContext().getContentResolver(), uri);
return c;
}
@Override
public String getType(Uri uri) {
switch (sUriMatcher.match(uri)) {
case NOTES:
return RemindMeContract.Alerts.CONTENT_TYPE;
case NOTE_ID:
return RemindMeContract.Alerts.CONTENT_ITEM_TYPE;
default:
throw new IllegalArgumentException("Unknown URI " + uri);
}
}
@Override
public Uri insert(Uri uri, ContentValues initialValues) {
// Validate the requested uri
if (sUriMatcher.match(uri) != NOTES) {
throw new IllegalArgumentException("Unknown URI " + uri);
}
ContentValues values;
if (initialValues != null) {
values = new ContentValues(initialValues);
} else {
values = new ContentValues();
}
String accountName = uri.getPathSegments().get(1);
values.put(RemindMeContract.Alerts.ACCOUNT_NAME, accountName);
long now = System.currentTimeMillis();
// Make sure that the fields are all set
if (values.getAsLong(RemindMeContract.Alerts.CREATED_DATE) == null) {
values.put(RemindMeContract.Alerts.CREATED_DATE, now);
}
if (values.getAsLong(RemindMeContract.Alerts.MODIFIED_DATE) == null) {
values.put(RemindMeContract.Alerts.MODIFIED_DATE, now);
}
if (!values.containsKey(RemindMeContract.Alerts.TITLE)) {
Resources r = Resources.getSystem();
values.put(RemindMeContract.Alerts.TITLE, r.getString(android.R.string.untitled));
}
if (values.containsKey(RemindMeContract.Alerts.PENDING_DELETE) &&
values.getAsBoolean(RemindMeContract.Alerts.PENDING_DELETE) == true) {
throw new SQLException("Cannot insert a alert that is pending delete.");
}
SQLiteDatabase db = mOpenHelper.getWritableDatabase();
long rowId = db.insert(NOTES_TABLE_NAME, RemindMeContract.Alerts.BODY, values);
if (rowId > 0) {
Uri alertUri = RemindMeContract.buildAlertUri(accountName, rowId);
boolean syncToNetwork = !hasCallerIsSyncAdapterParameter(uri);
getContext().getContentResolver().notifyChange(alertUri, null, syncToNetwork);
return alertUri;
}
throw new SQLException("Failed to insert row into " + uri);
}
@Override
public int delete(Uri uri, String where, String[] whereArgs) {
SQLiteDatabase db = mOpenHelper.getWritableDatabase();
int count;
switch (sUriMatcher.match(uri)) {
case NOTES:
count = db.delete(NOTES_TABLE_NAME, where, whereArgs);
break;
case NOTE_ID:
String alertId = uri.getPathSegments().get(2);
count = db.delete(NOTES_TABLE_NAME, RemindMeContract.Alerts._ID + "=" + alertId
+ (!TextUtils.isEmpty(where) ? " AND (" + where + ')' : ""), whereArgs);
break;
default:
throw new IllegalArgumentException("Unknown URI " + uri);
}
boolean syncToNetwork = !hasCallerIsSyncAdapterParameter(uri);
getContext().getContentResolver().notifyChange(uri, null, syncToNetwork);
return count;
}
@Override
public int update(Uri uri, ContentValues values, String where, String[] whereArgs) {
SQLiteDatabase db = mOpenHelper.getWritableDatabase();
int count;
switch (sUriMatcher.match(uri)) {
case NOTES:
count = db.update(NOTES_TABLE_NAME, values, where, whereArgs);
break;
case NOTE_ID:
String alertId = uri.getPathSegments().get(2);
count = db.update(NOTES_TABLE_NAME, values, RemindMeContract.Alerts._ID + "="
+ alertId + (!TextUtils.isEmpty(where) ? " AND (" + where + ')' : ""),
whereArgs);
break;
default:
throw new IllegalArgumentException("Unknown URI " + uri);
}
boolean syncToNetwork = !hasCallerIsSyncAdapterParameter(uri);
getContext().getContentResolver().notifyChange(uri, null, syncToNetwork);
return count;
}
private static boolean hasCallerIsSyncAdapterParameter(Uri uri) {
return Boolean.parseBoolean(uri.getQueryParameter(ContactsContract.CALLER_IS_SYNCADAPTER));
}
static {
sUriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
// Match .../alerts/foo@gmail.com
sUriMatcher.addURI(RemindMeContract.AUTHORITY, "alerts/*", NOTES);
// Match .../alerts/foo@gmail.com/123 (alert ID)
sUriMatcher.addURI(RemindMeContract.AUTHORITY, "alerts/*/#", NOTE_ID);
sAlertsProjectionMap = new HashMap<String, String>();
sAlertsProjectionMap.put(RemindMeContract.Alerts._ID,
RemindMeContract.Alerts._ID);
sAlertsProjectionMap.put(RemindMeContract.Alerts.SERVER_ID,
RemindMeContract.Alerts.SERVER_ID);
sAlertsProjectionMap.put(RemindMeContract.Alerts.ACCOUNT_NAME,
RemindMeContract.Alerts.ACCOUNT_NAME);
sAlertsProjectionMap.put(RemindMeContract.Alerts.TITLE,
RemindMeContract.Alerts.TITLE);
sAlertsProjectionMap.put(RemindMeContract.Alerts.BODY,
RemindMeContract.Alerts.BODY);
sAlertsProjectionMap.put(RemindMeContract.Alerts.CREATED_DATE,
RemindMeContract.Alerts.CREATED_DATE);
sAlertsProjectionMap.put(RemindMeContract.Alerts.MODIFIED_DATE,
RemindMeContract.Alerts.MODIFIED_DATE);
sAlertsProjectionMap.put(RemindMeContract.Alerts.PENDING_DELETE,
RemindMeContract.Alerts.PENDING_DELETE);
}
}