/*
* Copyright (C) 2008 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 uni.projecte.dataLayer.bd;
import java.util.Date;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.text.format.DateFormat;
import android.util.Log;
/**
* Simple Sample database access helper class
*/
public class SampleDbAdapter {
public static final String KEY_ROWID = "_id";
public static final String KEY_RS = "idRs";
public static final String DATE = "date";
public static final String LATITUDE = "latitude";
public static final String LONGITUDE = "longitude";
public static final String COMMENT = "comment";
public static final String SINCRONIZED="sincronized";
private static final String TAG = "SampleDbAdapter";
private DatabaseHelper mDbHelper;
private SQLiteDatabase mDb;
/**
* Database creation sql statement
*/
private static final String DATABASE_CREATE =
"create table Sample ("
+ KEY_ROWID + " INTEGER PRIMARY KEY,"
+ KEY_RS + " DOUBLE,"
+ LATITUDE + " DOUBLE,"
+ LONGITUDE + " DOUBLE,"
+ COMMENT + " TEXT,"
+ DATE + " TEXT,"
+ SINCRONIZED + " BOOLEAN"
+ ");";
private static final String DATABASE_NAME = "mobileSamplingS";
private static final String DATABASE_TABLE = "Sample";
private static final int DATABASE_VERSION = 2;
private final Context mCtx;
private static class DatabaseHelper extends SQLiteOpenHelper {
DatabaseHelper(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL(DATABASE_CREATE);
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
Log.w(TAG, "Upgrading database from version " + oldVersion + " to "
+ newVersion + ", which will destroy all old data");
db.execSQL("DROP TABLE IF EXISTS notes");
onCreate(db);
}
}
/**
* Constructor - takes the context to allow the database to be
* opened/created
*
* @param ctx the Context within which to work
*/
public SampleDbAdapter(Context ctx) {
this.mCtx = ctx;
}
/**
* Open the Sample database. If it cannot be opened, try to create a new
* instance of the database. If it cannot be created, throw an exception to
* signal the failure
*
* @return this (self reference, allowing this to be chained in an
* initialization call)
* @throws SQLException if the database could be neither opened or created
*/
public SampleDbAdapter open() throws SQLException {
mDbHelper = new DatabaseHelper(mCtx);
mDb = mDbHelper.getWritableDatabase();
return this;
}
public void close() {
mDbHelper.close();
}
public long createEmptySample(long rsId) {
ContentValues initialValues = new ContentValues();
initialValues.put(KEY_RS, rsId);
initialValues.put(SINCRONIZED , 0);
return mDb.insert(DATABASE_TABLE, null, initialValues);
}
public boolean updateLocation(long sampleId,double lat, double longitude){
ContentValues vals = new ContentValues();
vals.put(LATITUDE,lat);
vals.put(LONGITUDE,longitude);
return mDb.update(DATABASE_TABLE, vals, KEY_ROWID + "=" + sampleId, null) > 0;
}
public boolean updateDate(long sampleId,String date){
ContentValues vals = new ContentValues();
vals.put(DATE,date);
return mDb.update(DATABASE_TABLE, vals, KEY_ROWID + "=" + sampleId, null) > 0;
}
/**
* Create a new Sample using the rsID, latitude, longitude and comment. If the Sample is
* successfully created return the new rowId for that note, otherwise return
* a -1 to indicate failure.
*
* @param rsId the identifier of the research
* @param latitude the latitude of the Sample
* @param longitude the longitude of the Sample
* @param comment the comment of the Sample
* @return rowId or -1 if failed
*/
public long createSample(long rsId, double latitude, double longitude, String comment) {
ContentValues initialValues = new ContentValues();
initialValues.put(KEY_RS, rsId);
initialValues.put(LATITUDE , latitude);
initialValues.put(LONGITUDE , longitude);
initialValues.put(COMMENT , comment);
Date date = new Date();
date.getDate();
initialValues.put(DATE , (String) DateFormat.format("yyyy-MM-dd hh:mm:ss", date));
initialValues.put(SINCRONIZED , 0);
return mDb.insert(DATABASE_TABLE, null, initialValues);
}
/**
* Delete the Sample with the given rowId
*
* @param rowId id of note to delete
* @return true if deleted, false otherwise
*/
public boolean deleteSample(long rowId) {
return mDb.delete(DATABASE_TABLE, KEY_ROWID + "=" + rowId, null) > 0;
}
/**
* Return a Cursor over the list of all Samples in the database
*
* @return Cursor over all notes
*/
public Cursor fetchAllSamples() {
return mDb.query(DATABASE_TABLE, new String[] {KEY_ROWID, KEY_RS,
LATITUDE,LONGITUDE,DATE}, null, null, null, null, null);
}
/**
* Return a Cursor positioned at the Sample that matches the given rowId
*
* @param rowId id of Sample to retrieve
* @return Cursor positioned to matching note, if found
* @throws SQLException if note could not be found/retrieved
*/
public Cursor fetchSamplesByResearchId(long rowId) throws SQLException {
Cursor mCursor =
mDb.query(true, DATABASE_TABLE, new String[] {KEY_ROWID,
KEY_RS,
LATITUDE,LONGITUDE,DATE,SINCRONIZED}, KEY_RS + "=" + rowId, null,
null, null, null, null);
if (mCursor != null) {
mCursor.moveToFirst();
}
return mCursor;
}
public Cursor fetchSampleBySampleId(long rowId) throws SQLException {
Cursor mCursor =
mDb.query(true, DATABASE_TABLE, new String[] {KEY_ROWID,
KEY_RS,
LATITUDE,LONGITUDE,DATE,SINCRONIZED}, KEY_ROWID + "=" + rowId, null,
null, null, null, null);
if (mCursor != null) {
mCursor.moveToFirst();
}
return mCursor;
}
public Cursor fetchUnsyncronisedSamples(long rowId) throws SQLException {
Cursor mCursor =
mDb.query(true, DATABASE_TABLE, new String[] {KEY_ROWID,
KEY_RS,
LATITUDE,LONGITUDE,DATE,SINCRONIZED}, KEY_RS + "=" + rowId +" and "+SINCRONIZED+ "= '0'", null,
null, null, null, null);
if (mCursor != null) {
Log.d(TAG,"Cursor diferent de NUll");
mCursor.moveToFirst();
}
return mCursor;
}
/**
* Update the Sample to sincronized using the details provided.
*
* @return true if the note was successfully updated, false otherwise
*/
public boolean updateToSyncronised(long rowId) {
ContentValues vals = new ContentValues();
vals.put(SINCRONIZED,1);
return mDb.update(DATABASE_TABLE, vals, KEY_ROWID + "=" + rowId, null) > 0;
}
}