Alternative to "javafx.io.Resource" and "javafx.io.Storage" in JavaFX 2.2?

Question

Silverlight has a sandboxed file storage location as well as a facility to store key/value pairs.
It looks like JavaFX had some similar tools in 1.x, but they appear to be gone in 2.2.
Can anyone point me toward an alternative for both services?
Thanks,
Michael

Answer 1

Here you go.... I think this is almost reusable as is (my method logging methods need to be removed, and the directory for standalone persistence needs to be changed for your implementation).
PersistenceApi
public interface PersistenceApi {
    public InputStream getInputStream(String fileName);
    public boolean createNewFile(String fileName);
    public OutputStream getOutputStream(String fileName);
}PersistenceManager.... its like a factory, responsible for determining whether or not in Webstart mdoe or not and instantiating the correct implementation of PersistenceApi (not thread safe)
public class PersistenceManager {
    //static variables
    private static PersistenceApi persistence;
    //public functions
    public static PersistenceApi getPersistenceApi() {
        if (persistence == null) {
            String homeDir = null;
            try {
                homeDir = System.getProperty(game.CONSTANTS.STANDALONE_INSTALL_DIR_SYSTEM_PROPERTY);
            } catch (SecurityException e) {
                game.Log.debug("in PersistenceManager.getPersistenceApi, got exception");
            if (homeDir != null) {//...in standalone mode
                game.Log.debug("in PersistenceManager.getPersistenceApi, in standalone mode, homeDir == " + homeDir);
                persistence = new StandalonePersistence();
            } else {//...in web start mode
                game.Log.debug("in PersistenceManager.getPersistenceApi, in web start mode");
                persistence = new JnlpPersistence();
        return persistence;
}JnlpPersistence
public class JnlpPersistence implements PersistenceApi {
    //private variables
    private URL codeBase = null;
    private static PersistenceService persistenceService = null;
    //constructors
    JnlpPersistence() {
        setCodeBase();
        makePersistenceService();
    //private functions
    private void makePersistenceService() {
        if (persistenceService == null) {
            try {
                persistenceService = (PersistenceService) ServiceManager.lookup("javax.jnlp.PersistenceService");
            } catch (UnavailableServiceException e) {
                game.Log.debug("in JnlpPersistence.makePersistenceService(), got exception while getting instance of PersistenceService.  " + e.getMessage());
        assert persistenceService != null;
    private void setCodeBase() {
        if (codeBase == null) {
            BasicService bs;
            try {
                bs = (BasicService) ServiceManager.lookup("javax.jnlp.BasicService");
                codeBase = bs.getCodeBase();
            } catch (UnavailableServiceException e) {
                game.Log.debug("in JnlpPersistence.setCodeBase(), got exception while getting codeBase from.  " + e.getMessage());
        assert codeBase != null;
    //public functions
    @Override
    public InputStream getInputStream(String fileName) {
        String thisMethodsName = "in JnlpPersistence.getInputStream(), ";
        URL newFileUrl;
        FileContents newFc;
        try {
            newFileUrl = new URL(codeBase.toExternalForm() + fileName);
            newFc = persistenceService.get(newFileUrl);
            if (newFc == null) {
                game.Log.debug(thisMethodsName + "filecontents is null for filename = " + fileName);
                return null;
            if (!newFc.canRead()) {
                game.Log.debug(thisMethodsName + "filecontents is not readable for filename = " + fileName);
                return null;
        } catch (Exception e) {
            game.Log.debug(thisMethodsName + "caught exception while getting filecontents for filename = " + fileName + ".  " + e.getMessage());
            return null;
        InputStream is;
        try {
            is = newFc.getInputStream();
        } catch (Exception e) {
            game.Log.debug(thisMethodsName + "caught exception while getting input stream for filename = " + fileName + ".  " + e.getMessage());
            return null;
        return is;
    @Override
    public boolean createNewFile(String fileName) {
        URL newFileUrl;
        try {
            newFileUrl = new URL(codeBase.toExternalForm() + fileName);
            persistenceService.create(newFileUrl, CONSTANTS.MAX_PROFILE_FILE_SIZE);
        } catch (Exception e) {
            game.Log.debug("in JnlpPersistence.createNewFile, got exception while creating file with name = " + fileName + ".  " + e.getMessage());
            return false;
        return true;
    @Override
    public OutputStream getOutputStream(String fileName) {
        String thisMethodsName = "in JnlpPersistence.getOutputStream, ";
        URL newFileUrl;
        FileContents newFc;
        try {
            newFileUrl = new URL(codeBase.toExternalForm() + fileName);
            newFc = persistenceService.get(newFileUrl);
            if (newFc == null) {
                game.Log.debug(thisMethodsName + "filecontents is null for filename = " + fileName);
                return null;
            if (!newFc.canWrite()) {
                game.Log.debug(thisMethodsName + "filecontents is not writeable for filename = " + fileName);
                return null;
        } catch (Exception ex) {
            game.Log.debug(thisMethodsName + "caught exception while getting filecontents for filename = " + fileName + ".  " + ex.getMessage());
            return null;
        OutputStream os;
        try {
            os = newFc.getOutputStream(true);
        } catch (Exception e) {
            game.Log.debug(thisMethodsName + "caught exception while getting OutputStream for filename = " + fileName + ".  " + e.getMessage());
            return null;
        return os;
}StandalonePersistence
public class StandalonePersistence implements PersistenceApi {
    //private variables
    private final String SAVE_DIR = ".tm" + CONSTANTS.PATH_DELIMITTER;
    private String savePath;
    private File savePathFile;
    //constructor
    StandalonePersistence() {
        savePath = System.getProperty(game.CONSTANTS.STANDALONE_INSTALL_DIR_SYSTEM_PROPERTY) + CONSTANTS.PATH_DELIMITTER + SAVE_DIR;
        savePathFile = new File(this.savePath);
        if (savePathFile.exists() == false) {
            savePathFile.mkdir();
    //public functions
    @Override
    public InputStream getInputStream(String fileName) {
        String thisMethod = "in StandalonePersistence.getInputStream, ";
        File file = new File(savePath + CONSTANTS.PATH_DELIMITTER + fileName);
        if (file.exists() == false) {
            game.Log.debug(thisMethod + "file does not exist");
            return null;
        if (file.canRead() == false) {
            game.Log.error(thisMethod + "file is not readable");
            return null;
        InputStream is = null;
        try {
            is = new FileInputStream(file);
        } catch (FileNotFoundException e) {
            game.Log.error(thisMethod + "got exception while getting inputStream. " + e.getMessage());
        return is;
    @Override
    public boolean createNewFile(String fileName) {
        File file = new File(savePath + CONSTANTS.PATH_DELIMITTER + fileName);
        try {
            return file.createNewFile();
        } catch (IOException ex) {
            game.Log.error("in StandalonePersistence.createNewFile, got exception while creating file " + fileName + ".  " + ex.getMessage());
            return false;
    @Override
    public OutputStream getOutputStream(String fileName) {
        String thisMethod = "in StandalonePersistence.getOutputStream, ";
        File file = new File(savePath + CONSTANTS.PATH_DELIMITTER + fileName);
        if (file.exists() == false) {
            game.Log.debug(thisMethod + "file does not exist");
            if (this.createNewFile(fileName) == false) {
                return null;
            game.Log.debug(thisMethod + "created new file");
        if (file.canWrite() == false) {
            game.Log.error(thisMethod + "file is not writable");
            return null;
        OutputStream os = null;
        try {
            os = new FileOutputStream(file);
        } catch (FileNotFoundException e) {
            game.Log.error(thisMethod + "got exception while getting outputStream. " + e.getMessage());
        return os;
}Edited by: jmart on Aug 30, 2012 11:17 AM
Edited by: jmart on Aug 30, 2012 11:20 AM