Android Open Source - sana Procedure Provider

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License

The source code is released under:
Copyright (c) 2010, Moca All rights reserved. The source code for Moca is licensed under the BSD license as follows: Redistribution and use in source and binary forms, with or without modification, ...
If you think the Android project sana listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
Java Source Code

package org.moca.db;
/*from w ww.  j  av a 2 s .  c om*/
import java.util.HashMap;

import org.moca.db.MocaDB.DatabaseHelper;
import org.moca.db.MocaDB.ProcedureSQLFormat;

import android.content.ContentProvider;
import android.content.ContentUris;
import android.content.ContentValues;
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.SQLiteQueryBuilder;
import android.net.Uri;
import android.text.TextUtils;
import android.util.Log;

public class ProcedureProvider extends ContentProvider {

    private static final String TAG = "ProcedureProvider";
    
    private static final String PROCEDURE_TABLE_NAME = "procedures";
    
    private static final int PROCEDURES = 1;
    private static final int PROCEDURE_ID = 2;
    
    private DatabaseHelper mOpenHelper;
    private static final UriMatcher sUriMatcher;
    private static HashMap<String,String> sProcedureProjectionMap;
    
    @Override
    public boolean onCreate() {
        Log.i(TAG, "onCreate()");
        mOpenHelper = new DatabaseHelper(getContext());
        return true;
    }
    
    @Override
    public Cursor query(Uri uri, String[] projection, String selection,
            String[] selectionArgs, String sortOrder) {
        Log.i(TAG, "query() uri="+uri.toString() + " projection=" + TextUtils.join(",",projection));
        
        SQLiteQueryBuilder qb = new SQLiteQueryBuilder();
        qb.setTables(PROCEDURE_TABLE_NAME);
        
        switch(sUriMatcher.match(uri)) {
        case PROCEDURES:    
            break;
        case PROCEDURE_ID:
            qb.appendWhere(ProcedureSQLFormat._ID + "=" + uri.getPathSegments().get(1));
            break;
        default:
            throw new IllegalArgumentException("Unknown URI " + uri);
        }
        
        String orderBy;
        if(TextUtils.isEmpty(sortOrder)) {
            orderBy = ProcedureSQLFormat.DEFAULT_SORT_ORDER;
        } else {
            orderBy = sortOrder;
        }
        
        SQLiteDatabase db = mOpenHelper.getReadableDatabase();
        Cursor c = qb.query(db, projection, selection, selectionArgs, null, null, orderBy);
        c.setNotificationUri(getContext().getContentResolver(), uri);
        return c;
    }

    @Override
    public int update(Uri uri, ContentValues values, String selection,
            String[] selectionArgs) {
        SQLiteDatabase db = mOpenHelper.getWritableDatabase();
        int count = 0; 
        
        switch(sUriMatcher.match(uri)) {
        case PROCEDURES:
            count = db.update(PROCEDURE_TABLE_NAME, values, selection, selectionArgs);
            break;
            
        case PROCEDURE_ID:
            String procedureId = uri.getPathSegments().get(1);
            count = db.update(PROCEDURE_TABLE_NAME, values, ProcedureSQLFormat._ID + "=" + procedureId + (!TextUtils.isEmpty(selection) ? " AND (" + selection + ")" : ""), selectionArgs);
            break;
        default:
            throw new IllegalArgumentException("Unknown URI " + uri);
        }
        
        getContext().getContentResolver().notifyChange(uri, null);
        return count;
    }

    @Override
    public int delete(Uri uri, String selection, String[] selectionArgs) {
        SQLiteDatabase db = mOpenHelper.getWritableDatabase();
        int count;
        switch (sUriMatcher.match(uri)) {
        case PROCEDURES:
            count = db.delete(PROCEDURE_TABLE_NAME, selection, selectionArgs);
            break;
        case PROCEDURE_ID:
            String procedureId = uri.getPathSegments().get(1); 
            count = db.delete(PROCEDURE_TABLE_NAME, ProcedureSQLFormat._ID + "=" + procedureId + (!TextUtils.isEmpty(selection) ? " AND (" + selection + ")" : ""), selectionArgs);
            break;
        default:
            throw new IllegalArgumentException("Unknown URI " + uri);
        }
        
        getContext().getContentResolver().notifyChange(uri, null);
        return count;
    }

    @Override
    public Uri insert(Uri uri, ContentValues initialValues) {
        if (sUriMatcher.match(uri) != PROCEDURES) {
            throw new IllegalArgumentException("Unknown URI " + uri);
        }
        
        ContentValues values;
        if(initialValues != null) {
            values = new ContentValues(initialValues);
        } else {
            values = new ContentValues();
        }
        
        Long now = Long.valueOf(System.currentTimeMillis());
        
        if(values.containsKey(ProcedureSQLFormat.CREATED_DATE) == false) {
            values.put(ProcedureSQLFormat.CREATED_DATE, now);
        }
        
        if(values.containsKey(ProcedureSQLFormat.MODIFIED_DATE) == false) {
            values.put(ProcedureSQLFormat.MODIFIED_DATE, now);
        }
        
        if(values.containsKey(ProcedureSQLFormat.TITLE) == false) {
            Resources r = Resources.getSystem();
            values.put(ProcedureSQLFormat.TITLE, r.getString(android.R.string.untitled));
        }
        
        if(values.containsKey(ProcedureSQLFormat.AUTHOR) == false) {
            Resources r = Resources.getSystem();
            values.put(ProcedureSQLFormat.AUTHOR, r.getString(android.R.string.untitled));
        }
        
        if(values.containsKey(ProcedureSQLFormat.PROCEDURE) == false) {
            values.put(ProcedureSQLFormat.PROCEDURE, "");
        }
        
        SQLiteDatabase db = mOpenHelper.getWritableDatabase();
        long rowId = db.insert(PROCEDURE_TABLE_NAME, ProcedureSQLFormat.PROCEDURE, values);
        if(rowId > 0) {
            Uri noteUri = ContentUris.withAppendedId(ProcedureSQLFormat.CONTENT_URI, rowId);
            getContext().getContentResolver().notifyChange(noteUri, null);
            return noteUri;
        }
        
        throw new SQLException("Failed to insert row into " + uri);
    }

    @Override
    public String getType(Uri uri) {
        Log.i(TAG, "getType(uri="+uri.toString()+")");
        switch(sUriMatcher.match(uri)) {
        case PROCEDURES:
            return ProcedureSQLFormat.CONTENT_TYPE;
        case PROCEDURE_ID:
            return ProcedureSQLFormat.CONTENT_ITEM_TYPE;
        default:
            throw new IllegalArgumentException("Unknown URI " + uri);
        }
    }

    public static void onCreateDatabase(SQLiteDatabase db) {
        Log.i(TAG, "Creating Procedure Table");
        db.execSQL("CREATE TABLE " + PROCEDURE_TABLE_NAME + " ("
                + ProcedureSQLFormat._ID + " INTEGER PRIMARY KEY,"
                + ProcedureSQLFormat.TITLE + " TEXT,"
                + ProcedureSQLFormat.AUTHOR + " TEXT,"
                + ProcedureSQLFormat.PROCEDURE + " TEXT,"
                + ProcedureSQLFormat.CREATED_DATE + " INTEGER,"
                + ProcedureSQLFormat.MODIFIED_DATE + " INTEGER"
                + ");");
    }
    
    public static void onUpgradeDatabase(SQLiteDatabase db, int oldVersion, int newVersion) {
        Log.w(TAG, "Upgrading database from version " + oldVersion + " to "
                + newVersion);
        if (oldVersion == 1 && newVersion == 2) {
          // Do nothing
        }
    }

    static {
        sUriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
        sUriMatcher.addURI(MocaDB.PROCEDURE_AUTHORITY, "procedures", PROCEDURES);
        sUriMatcher.addURI(MocaDB.PROCEDURE_AUTHORITY, "procedures/#", PROCEDURE_ID);
        
        sProcedureProjectionMap = new HashMap<String, String>();
        sProcedureProjectionMap.put(ProcedureSQLFormat._ID, ProcedureSQLFormat._ID);
        sProcedureProjectionMap.put(ProcedureSQLFormat.TITLE, ProcedureSQLFormat.TITLE);
        sProcedureProjectionMap.put(ProcedureSQLFormat.AUTHOR, ProcedureSQLFormat.AUTHOR);
        sProcedureProjectionMap.put(ProcedureSQLFormat.PROCEDURE, ProcedureSQLFormat.PROCEDURE);
        sProcedureProjectionMap.put(ProcedureSQLFormat.CREATED_DATE, ProcedureSQLFormat.CREATED_DATE);
        sProcedureProjectionMap.put(ProcedureSQLFormat.MODIFIED_DATE, ProcedureSQLFormat.MODIFIED_DATE);
    }
    
}
Java Source Code List
