JsQ28Bgw

1package com.phehossof.launcher;
2
3import android.content.ContentProvider;
4import android.content.ContentUris;
5import android.content.ContentValues;
6import android.content.Context;
7import android.content.UriMatcher;
8import android.database.Cursor;
9import android.database.sqlite.SQLiteDatabase;
10import android.database.sqlite.SQLiteException;
11import android.database.sqlite.SQLiteOpenHelper;
12import android.database.sqlite.SQLiteQueryBuilder;
13import android.net.Uri;
14import androidx.annotation.NonNull;
15import androidx.annotation.Nullable;
16import java.util.HashMap;
17import java.util.Objects;
18
19public class ProviderContent extends ContentProvider {
20    static final String PROVIDER_NAME ="com.phehossof.launcher.ProviderContent";
21    static final String URL = "content://" + PROVIDER_NAME +"/acl";
22    static final Uri CONTENT_URI = Uri.parse(URL);
23
24    static final String id = "id";
25    static final String name = "name";
26    static final String grade = "grade";
27    static final String department = "department";
28    static final int uriCode = 1;
29    static final UriMatcher uriMatcher;
30    private static HashMap<String, String> values;
31
32    static {
33        uriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
34        uriMatcher.addURI(PROVIDER_NAME, "acl", uriCode);
35        uriMatcher.addURI(PROVIDER_NAME, "acl/*", uriCode);
36    }
37
38    @Override
39    public boolean onCreate() {
40        Context context = getContext();
41        DatabaseHelper dbHelper = new DatabaseHelper(context);
42        db = dbHelper.getWritableDatabase();
43
44        return db != null;
45    }
46
47    @Nullable
48    @Override
49    public Cursor query(@NonNull Uri uri, @Nullable String[] projection, @Nullable String selection, @Nullable String[] selectionArgs, @Nullable String sortOrder) {
50        SQLiteQueryBuilder qb = new SQLiteQueryBuilder();
51        qb.setTables(TABLE_NAME);
52        qb.setStrict(true);
53        qb.setProjectionMap(null);
54        if (uriMatcher.match(uri) == uriCode) qb.setProjectionMap(values);
55        else throw new IllegalArgumentException("Unknown URI " + uri);
56        if (sortOrder == null || Objects.equals(sortOrder, "")) sortOrder = id;
57        Cursor c = qb.query(db, projection, selection, selectionArgs, null, null, sortOrder);
58        c.setNotificationUri(Objects.requireNonNull(getContext()).getContentResolver(), uri);
59        return c;
60    }
61
62    @Nullable
63    @Override
64    public String getType(@NonNull Uri uri) {
65        if (uriMatcher.match(uri) == uriCode) return "vnd.android.cursor/acl";
66        throw new IllegalArgumentException("Unsupported URI:" + uri);
67    }
68
69    @Nullable
70    @Override
71    public Uri insert(@NonNull Uri uri, @Nullable ContentValues values) {
72        long rowID = db.insert(TABLE_NAME,"", values);
73        if (rowID > 0) {
74            Uri _uri = ContentUris.withAppendedId(CONTENT_URI, rowID);
75            Objects.requireNonNull(getContext()).getContentResolver().notifyChange(_uri, null);
76            return _uri;
77        }
78        throw new SQLiteException("Failed to add record into " + uri);
79    }
80
81    @Override
82    public int delete(@NonNull Uri uri, @Nullable String selection, @Nullable String[] selectionArgs) {
83        int count;
84        if (uriMatcher.match(uri) == uriCode) {
85            count = db.delete(TABLE_NAME, selection, selectionArgs);
86        } else {
87            throw new IllegalArgumentException("Unknown URI " + uri);
88        }
89        Objects.requireNonNull(getContext()).getContentResolver().notifyChange(uri, null);
90        return count;
91    }
92
93    @Override
94    public int update(@NonNull Uri uri, @Nullable ContentValues values, @Nullable String selection, @Nullable String[] selectionArgs) {
95        int count;
96        if (uriMatcher.match(uri) == uriCode) {
97            count = db.update(TABLE_NAME, values, selection, selectionArgs);
98        } else {
99            throw new IllegalArgumentException("Unknown URI " + uri);
100        }
101        Objects.requireNonNull(getContext()).getContentResolver().notifyChange(uri, null);
102        return count;
103    }
104
105    private SQLiteDatabase db;
106    static final String DATABASE_NAME = "Phoenix";
107    static final String TABLE_NAME = "CurrentUser";
108    static final int DATABASE_VERSION = 1;
109    static final String CREATE_DB_TABLE = " CREATE TABLE " + TABLE_NAME
110            + " (id INTEGER PRIMARY KEY AUTOINCREMENT, "
111            + " name TEXT NOT NULL, "
112            + " grade INTEGER NOT NULL, "
113            + " department INTEGER NOT NULL);";
114
115    private static class DatabaseHelper extends SQLiteOpenHelper {
116        DatabaseHelper(Context context) {
117            super(context, DATABASE_NAME, null, DATABASE_VERSION);
118        }
119
120        @Override
121        public void onCreate(SQLiteDatabase db) {
122            db.execSQL(CREATE_DB_TABLE);
123        }
124
125        @Override
126        public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
127            db.execSQL("DROP TABLE IF EXISTS " + TABLE_NAME);
128            onCreate(db);
129        }
130    }
131}