/*
* Copyright (C) 2007 The Android Open Source Project
*
* 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 org.commcare.dalvik.odk.provider;
import java.io.File;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import org.commcare.dalvik.application.CommCareApplication;
import org.commcare.dalvik.odk.provider.InstanceProviderAPI.InstanceColumns;
import android.content.ContentProvider;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Context;
import android.content.UriMatcher;
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.text.TextUtils;
import android.util.Log;
/**
*
*/
public class InstanceProvider extends ContentProvider {
private static final String t = "InstancesProvider";
private static final String DATABASE_NAME = "instances.db";
private static final int DATABASE_VERSION = 2;
private static final String INSTANCES_TABLE_NAME = "instances";
private static HashMap<String, String> sInstancesProjectionMap;
private static final int INSTANCES = 1;
private static final int INSTANCE_ID = 2;
private static final UriMatcher sUriMatcher;
/**
* This class helps open, create, and upgrade the database file.
*/
private static class DatabaseHelper extends SQLiteOpenHelper {
public DatabaseHelper(Context c, String databaseName) {
super(c, databaseName, null, DATABASE_VERSION);
}
/*
* (non-Javadoc)
* @see android.database.sqlite.SQLiteOpenHelper#onCreate(android.database.sqlite.SQLiteDatabase)
*/
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL("CREATE TABLE " + INSTANCES_TABLE_NAME + " ("
+ InstanceColumns._ID + " integer primary key, "
+ InstanceColumns.DISPLAY_NAME + " text not null, "
+ InstanceColumns.SUBMISSION_URI + " text, "
+ InstanceColumns.CAN_EDIT_WHEN_COMPLETE + " text, "
+ InstanceColumns.INSTANCE_FILE_PATH + " text not null, "
+ InstanceColumns.JR_FORM_ID + " text not null, "
+ InstanceColumns.STATUS + " text not null, "
+ InstanceColumns.LAST_STATUS_CHANGE_DATE + " date not null, "
+ InstanceColumns.DISPLAY_SUBTEXT + " text not null );");
}
/*
* (non-Javadoc)
* @see android.database.sqlite.SQLiteOpenHelper#onUpgrade(android.database.sqlite.SQLiteDatabase, int, int)
*/
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
Log.w(t, "Upgrading database from version " + oldVersion + " to " + newVersion
+ ", which will destroy all old data");
db.execSQL("DROP TABLE IF EXISTS instances");
onCreate(db);
}
}
private DatabaseHelper mDbHelper;
/*
* (non-Javadoc)
* @see android.content.ContentProvider#onCreate()
*/
@Override
public boolean onCreate() {
//This is so stupid.
return true;
}
public void init() {
//this is terrible, we need to be binding to the cc service, etc. Temporary code for testing
if(mDbHelper == null) {
mDbHelper = new DatabaseHelper(CommCareApplication._(), DATABASE_NAME);
}
}
/*
* (non-Javadoc)
* @see android.content.ContentProvider#query(android.net.Uri, java.lang.String[], java.lang.String, java.lang.String[], java.lang.String)
*/
@Override
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
String sortOrder) {
init();
SQLiteQueryBuilder qb = new SQLiteQueryBuilder();
qb.setTables(INSTANCES_TABLE_NAME);
switch (sUriMatcher.match(uri)) {
case INSTANCES:
qb.setProjectionMap(sInstancesProjectionMap);
break;
case INSTANCE_ID:
qb.setProjectionMap(sInstancesProjectionMap);
qb.appendWhere(InstanceColumns._ID + "=" + uri.getPathSegments().get(1));
break;
default:
throw new IllegalArgumentException("Unknown URI " + uri);
}
// Get the database and run the query
SQLiteDatabase db = mDbHelper.getReadableDatabase();
Cursor c = qb.query(db, projection, selection, selectionArgs, null, null, sortOrder);
// Tell the cursor what uri to watch, so it knows when its source data changes
c.setNotificationUri(getContext().getContentResolver(), uri);
return c;
}
/*
* (non-Javadoc)
* @see android.content.ContentProvider#getType(android.net.Uri)
*/
@Override
public String getType(Uri uri) {
switch (sUriMatcher.match(uri)) {
case INSTANCES:
return InstanceColumns.CONTENT_TYPE;
case INSTANCE_ID:
return InstanceColumns.CONTENT_ITEM_TYPE;
default:
throw new IllegalArgumentException("Unknown URI " + uri);
}
}
/*
* (non-Javadoc)
* @see android.content.ContentProvider#insert(android.net.Uri, android.content.ContentValues)
*/
@Override
public Uri insert(Uri uri, ContentValues initialValues) {
// Validate the requested uri
if (sUriMatcher.match(uri) != INSTANCES) {
throw new IllegalArgumentException("Unknown URI " + uri);
}
init();
ContentValues values;
if (initialValues != null) {
values = new ContentValues(initialValues);
} else {
values = new ContentValues();
}
Long now = Long.valueOf(System.currentTimeMillis());
// Make sure that the fields are all set
if (values.containsKey(InstanceColumns.LAST_STATUS_CHANGE_DATE) == false) {
values.put(InstanceColumns.LAST_STATUS_CHANGE_DATE, now);
}
if (values.containsKey(InstanceColumns.DISPLAY_SUBTEXT) == false) {
Date today = new Date();
String text = getDisplaySubtext(InstanceProviderAPI.STATUS_INCOMPLETE, today);
values.put(InstanceColumns.DISPLAY_SUBTEXT, text);
}
if (values.containsKey(InstanceColumns.STATUS) == false) {
values.put(InstanceColumns.STATUS, InstanceProviderAPI.STATUS_INCOMPLETE);
}
SQLiteDatabase db = mDbHelper.getWritableDatabase();
long rowId = db.insert(INSTANCES_TABLE_NAME, null, values);
if (rowId > 0) {
Uri instanceUri = ContentUris.withAppendedId(InstanceColumns.CONTENT_URI, rowId);
getContext().getContentResolver().notifyChange(instanceUri, null);
return instanceUri;
}
throw new SQLException("Failed to insert row into " + uri);
}
private String getDisplaySubtext(String state, Date date) {
String ts = new SimpleDateFormat("EEE, MMM dd, yyyy 'at' HH:mm").format(date);
if (state == null) {
return "Added on " + ts;
} else if (InstanceProviderAPI.STATUS_INCOMPLETE.equalsIgnoreCase(state)) {
return "Saved on " + ts;
} else if (InstanceProviderAPI.STATUS_COMPLETE.equalsIgnoreCase(state)) {
return "Finalized on " + ts;
} else if (InstanceProviderAPI.STATUS_SUBMITTED.equalsIgnoreCase(state)) {
return "Sent on " + ts;
} else if (InstanceProviderAPI.STATUS_SUBMISSION_FAILED.equalsIgnoreCase(state)) {
return "Sending failed on " + ts;
} else {
return "Added on " + ts;
}
}
private void deleteFileOrDir(String fileName ) {
File file = new File(fileName);
if (file.exists()) {
if (file.isDirectory()) {
// delete all the containing files
File[] files = file.listFiles();
for (File f : files) {
// should make this recursive if we get worried about
// the media directory containing directories
f.delete();
}
}
file.delete();
}
}
/*
* (non-Javadoc)
* @see android.content.ContentProvider#delete(android.net.Uri, java.lang.String, java.lang.String[])
*
* This method removes the entry from the content provider, and also removes any associated files.
* files: form.xml, [formmd5].formdef, formname-media {directory}
*/
@Override
public int delete(Uri uri, String where, String[] whereArgs) {
init();
SQLiteDatabase db = mDbHelper.getWritableDatabase();
int count;
switch (sUriMatcher.match(uri)) {
case INSTANCES:
Cursor del = null;
try {
del = this.query(uri, null, where, whereArgs, null);
del.moveToPosition(-1);
while (del.moveToNext()) {
String instanceFile = del.getString(del.getColumnIndex(InstanceColumns.INSTANCE_FILE_PATH));
String instanceDir = (new File(instanceFile)).getParent();
deleteFileOrDir(instanceDir);
}
} finally {
if ( del != null ) {
del.close();
}
}
count = db.delete(INSTANCES_TABLE_NAME, where, whereArgs);
break;
case INSTANCE_ID:
String instanceId = uri.getPathSegments().get(1);
Cursor c = null;
try {
c = this.query(uri, null, where, whereArgs, null);
// This should only ever return 1 record. I hope.
c.moveToPosition(-1);
while (c.moveToNext()) {
String instanceFile = c.getString(c.getColumnIndex(InstanceColumns.INSTANCE_FILE_PATH));
String instanceDir = (new File(instanceFile)).getParent();
deleteFileOrDir(instanceDir);
}
} finally {
if ( c != null ) {
c.close();
}
}
count =
db.delete(INSTANCES_TABLE_NAME,
InstanceColumns._ID + "=" + instanceId
+ (!TextUtils.isEmpty(where) ? " AND (" + where + ')' : ""),
whereArgs);
break;
default:
throw new IllegalArgumentException("Unknown URI " + uri);
}
getContext().getContentResolver().notifyChange(uri, null);
return count;
}
/*
* (non-Javadoc)
* @see android.content.ContentProvider#update(android.net.Uri, android.content.ContentValues, java.lang.String, java.lang.String[])
*/
@Override
public int update(Uri uri, ContentValues values, String where, String[] whereArgs) {
init();
SQLiteDatabase db = mDbHelper.getWritableDatabase();
int count;
String status = null;
switch (sUriMatcher.match(uri)) {
case INSTANCES:
if (values.containsKey(InstanceColumns.STATUS)) {
status = values.getAsString(InstanceColumns.STATUS);
if (values.containsKey(InstanceColumns.DISPLAY_SUBTEXT) == false) {
Date today = new Date();
String text = getDisplaySubtext(status, today);
values.put(InstanceColumns.DISPLAY_SUBTEXT, text);
}
}
count = db.update(INSTANCES_TABLE_NAME, values, where, whereArgs);
break;
case INSTANCE_ID:
String instanceId = uri.getPathSegments().get(1);
if (values.containsKey(InstanceColumns.STATUS)) {
status = values.getAsString(InstanceColumns.STATUS);
if (values.containsKey(InstanceColumns.DISPLAY_SUBTEXT) == false) {
Date today = new Date();
String text = getDisplaySubtext(status, today);
values.put(InstanceColumns.DISPLAY_SUBTEXT, text);
}
}
count =
db.update(INSTANCES_TABLE_NAME, values, InstanceColumns._ID + "=" + instanceId
+ (!TextUtils.isEmpty(where) ? " AND (" + where + ')' : ""), whereArgs);
break;
default:
throw new IllegalArgumentException("Unknown URI " + uri);
}
getContext().getContentResolver().notifyChange(uri, null);
return count;
}
static {
sUriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
sUriMatcher.addURI(InstanceProviderAPI.AUTHORITY, "instances", INSTANCES);
sUriMatcher.addURI(InstanceProviderAPI.AUTHORITY, "instances/#", INSTANCE_ID);
sInstancesProjectionMap = new HashMap<String, String>();
sInstancesProjectionMap.put(InstanceColumns._ID, InstanceColumns._ID);
sInstancesProjectionMap.put(InstanceColumns.DISPLAY_NAME, InstanceColumns.DISPLAY_NAME);
sInstancesProjectionMap.put(InstanceColumns.SUBMISSION_URI, InstanceColumns.SUBMISSION_URI);
sInstancesProjectionMap.put(InstanceColumns.CAN_EDIT_WHEN_COMPLETE, InstanceColumns.CAN_EDIT_WHEN_COMPLETE);
sInstancesProjectionMap.put(InstanceColumns.INSTANCE_FILE_PATH, InstanceColumns.INSTANCE_FILE_PATH);
sInstancesProjectionMap.put(InstanceColumns.JR_FORM_ID, InstanceColumns.JR_FORM_ID);
sInstancesProjectionMap.put(InstanceColumns.STATUS, InstanceColumns.STATUS);
sInstancesProjectionMap.put(InstanceColumns.LAST_STATUS_CHANGE_DATE, InstanceColumns.LAST_STATUS_CHANGE_DATE);
sInstancesProjectionMap.put(InstanceColumns.DISPLAY_SUBTEXT, InstanceColumns.DISPLAY_SUBTEXT);
}
}