fedilab-Android-App/app/src/main/java/app/fedilab/android/mastodon/client/entities/app/CamelTag.java

131 lines
4.1 KiB
Java

package app.fedilab.android.mastodon.client.entities.app;
/* Copyright 2023 Thomas Schneider
*
* This file is a part of Fedilab
*
* This program is free software; you can redistribute it and/or modify it under the terms of the
* GNU General Public License as published by the Free Software Foundation; either version 3 of the
* License, or (at your option) any later version.
*
* Fedilab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
* Public License for more details.
*
* You should have received a copy of the GNU General Public License along with Fedilab; if not,
* see <http://www.gnu.org/licenses>. */
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import com.google.gson.annotations.SerializedName;
import java.util.ArrayList;
import java.util.List;
import app.fedilab.android.mastodon.exception.DBException;
import app.fedilab.android.sqlite.Sqlite;
public class CamelTag {
private final SQLiteDatabase db;
@SerializedName("name")
public String name;
public CamelTag(Context context) {
this.db = Sqlite.getInstance(context.getApplicationContext(), Sqlite.DB_NAME, null, Sqlite.DB_VERSION).open();
}
/**
* Insert or update a status
*
* @param name {@link String}
* @return long - -1 if exists or id
* @throws DBException exception with database
*/
public synchronized long insert(String name) throws DBException {
if (db == null) {
throw new DBException("db is null. Wrong initialization.");
}
boolean exists = tagExists(name);
if (!exists) {
ContentValues values = new ContentValues();
values.put(Sqlite.COL_TAG, name);
try {
return db.insertOrThrow(Sqlite.TABLE_CACHE_TAGS, null, values);
} catch (Exception e) {
e.printStackTrace();
return -1;
}
}
return -1;
}
/**
* Returns tags List of {@String} containing "search"
*
* @param search - String the word to search
* @return List<String>
*/
public List<String> getBy(String search) {
Cursor c = db.query(Sqlite.TABLE_CACHE_TAGS, null, Sqlite.COL_TAG + " LIKE \"%" + search + "%\"", null, null, null, null, null);
return cursorToTag(c);
}
public boolean tagExists(String name) throws DBException {
Cursor c = db.query(Sqlite.TABLE_CACHE_TAGS, null, Sqlite.COL_TAG + " = \"" + name + "\"", null, null, null, null, null);
boolean isPresent = (c != null && c.getCount() > 0);
assert c != null;
c.close();
return isPresent;
}
public void removeAll() {
db.delete(Sqlite.TABLE_CACHE_TAGS, null, null);
}
public void removeTag(String tag) {
db.delete(Sqlite.TABLE_CACHE_TAGS, Sqlite.COL_TAG + " = ?", new String[]{tag});
}
public void update(String oldTag, String newTag) {
ContentValues values = new ContentValues();
values.put(Sqlite.COL_TAG, newTag);
try {
db.update(Sqlite.TABLE_CACHE_TAGS, values, Sqlite.COL_TAG + " = ?", new String[]{oldTag});
} catch (Exception ignored) {
}
}
/**
* Returns all tags in db
*
* @return string tags List<String>
*/
public List<String> getAll() {
try {
Cursor c = db.query(Sqlite.TABLE_CACHE_TAGS, null, null, null, null, null, Sqlite.COL_TAG + " ASC", null);
return cursorToTag(c);
} catch (Exception e) {
return null;
}
}
private List<String> cursorToTag(Cursor c) {
//No element found
if (c.getCount() == 0) {
c.close();
return null;
}
List<String> tags = new ArrayList<>();
while (c.moveToNext()) {
tags.add(c.getString(c.getColumnIndexOrThrow(Sqlite.COL_TAG)));
}
//Close the cursor
c.close();
//Tag list is returned
return tags;
}
}