Example usage for java.util.prefs Preferences getByteArray

Introduction

In this page you can find the example usage for java.util.prefs Preferences getByteArray.

Prototype

public abstract byte[] getByteArray(String key, byte[] def);

Source Link

Document

Returns the byte array value represented by the string associated with the specified key in this preference node.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    Preferences prefs = Preferences.userNodeForPackage(Main.class);

    // Preference key name
    final String PREF_NAME = "name_of_preference";

    // Save/*from w w  w . j  a v a2  s.  c  o  m*/
    prefs.put(PREF_NAME, "a string"); // String
    prefs.putBoolean(PREF_NAME, true); // boolean
    prefs.putInt(PREF_NAME, 123); // int
    prefs.putLong(PREF_NAME, 123L); // long
    prefs.putFloat(PREF_NAME, 12.3F); // float
    prefs.putDouble(PREF_NAME, 12.3); // double
    byte[] bytes = new byte[1024];
    prefs.putByteArray(PREF_NAME, bytes); // byte[]

    // Retrieve
    String s = prefs.get(PREF_NAME, "a string"); // String
    boolean b = prefs.getBoolean(PREF_NAME, true); // boolean
    int i = prefs.getInt(PREF_NAME, 123); // int
    long l = prefs.getLong(PREF_NAME, 123L); // long
    float f = prefs.getFloat(PREF_NAME, 12.3F); // float
    double d = prefs.getDouble(PREF_NAME, 12.3); // double
    bytes = prefs.getByteArray(PREF_NAME, bytes); // byte[]
}

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From source file:de.scoopgmbh.copper.monitoring.client.context.ApplicationContext.java

public ApplicationContext() {
    mainStackPane = new StackPane();
    mainPane = new BorderPane();
    mainPane.setId("background");//important for css
    mainStackPane.getChildren().add(mainPane);
    messageProvider = new MessageProvider(ResourceBundle.getBundle("de.scoopgmbh.copper.gui.message"));

    final Preferences prefs = Preferences.userRoot().node("de.scoopgmbh.coppermonitor");

    SettingsModel defaultSettings = new SettingsModel();
    AuditralColorMapping newItem = new AuditralColorMapping();
    newItem.color.setValue(Color.rgb(255, 128, 128));
    newItem.loglevelRegEx.setValue("1");
    defaultSettings.auditralColorMappings.add(newItem);
    byte[] defaultModelbytes;
    ByteArrayOutputStream os = null;
    try {// ww  w  . j  av a 2s  .  c  o m
        os = new ByteArrayOutputStream();
        ObjectOutputStream o = new ObjectOutputStream(os);
        o.writeObject(defaultSettings);
        defaultModelbytes = os.toByteArray();
    } catch (IOException e) {
        throw new RuntimeException(e);
    } finally {
        if (os != null) {
            try {
                os.close();
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }
    }

    settingsModelSingleton = defaultSettings;
    ByteArrayInputStream is = null;
    try {
        is = new ByteArrayInputStream(prefs.getByteArray(SETTINGS_KEY, defaultModelbytes));
        ObjectInputStream o = new ObjectInputStream(is);
        Object object = o.readObject();
        if (object instanceof SettingsModel) {
            settingsModelSingleton = (SettingsModel) object;
        }
    } catch (Exception e) {
        logger.error("", e);
        getIssueReporterSingleton()
                .reportWarning("Can't load settings from (Preferences: " + prefs + ") use defaults instead", e);
    } finally {
        if (is != null) {
            try {
                is.close();
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }
    }

    Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {
        @Override
        public void run() {
            ByteArrayOutputStream os = null;
            try {
                os = new ByteArrayOutputStream();
                ObjectOutputStream o = new ObjectOutputStream(os);
                o.writeObject(settingsModelSingleton);
                prefs.putByteArray(SETTINGS_KEY, os.toByteArray());
            } catch (IOException e) {
                throw new RuntimeException(e);
            } finally {
                if (os != null) {
                    try {
                        os.close();
                    } catch (IOException e) {
                        throw new RuntimeException(e);
                    }
                }
            }
        }
    }));
}

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From source file:edu.umd.cs.findbugs.gui2.GUISaveState.java

public static void loadInstance() {
    GUISaveState newInstance = new GUISaveState();
    newInstance.recentFiles = new ArrayList<File>();
    Preferences p = Preferences.userNodeForPackage(GUISaveState.class);

    newInstance.tabSize = p.getInt(TAB_SIZE, 4);

    newInstance.fontSize = p.getFloat(FONT_SIZE, 12.0f);

    newInstance.starterDirectoryForLoadBugs = new File(
            p.get(GUISaveState.STARTERDIRECTORY, SystemProperties.getProperty("user.dir")));

    int prevCommentsSize = p.getInt(GUISaveState.PREVCOMMENTSSIZE, 0);

    for (int x = 0; x < prevCommentsSize; x++) {
        String comment = p.get(GUISaveState.COMMENTKEYS[x], "");
        newInstance.previousComments.add(comment);
    }/*from   ww w  .j av a2s  .  com*/

    int size = Math.min(MAXNUMRECENTPROJECTS, p.getInt(GUISaveState.NUMPROJECTS, 0));
    for (int x = 0; x < size; x++) {
        newInstance.addRecentFile(new File(p.get(GUISaveState.RECENTPROJECTKEYS[x], "")));
    }

    int sorterSize = p.getInt(GUISaveState.SORTERTABLELENGTH, -1);
    if (sorterSize != -1) {
        ArrayList<Sortables> sortColumns = new ArrayList<Sortables>();
        String[] sortKeys = GUISaveState.generateSorterKeys(sorterSize);
        for (int x = 0; x < sorterSize; x++) {
            Sortables s = Sortables.getSortableByPrettyName(p.get(sortKeys[x], "*none*"));

            if (s == null) {
                if (MainFrame.GUI2_DEBUG) {
                    System.err.println("Sort order was corrupted, using default sort order");
                }
                newInstance.useDefault = true;
                break;
            }
            sortColumns.add(s);
        }
        if (!newInstance.useDefault) {
            // add in default columns
            Set<Sortables> missingSortColumns = new HashSet<Sortables>(Arrays.asList(DEFAULT_COLUMN_HEADERS));
            missingSortColumns.removeAll(sortColumns);
            sortColumns.addAll(missingSortColumns);
            newInstance.sortColumns = sortColumns.toArray(new Sortables[sortColumns.size()]);
        }
    } else {
        newInstance.useDefault = true;
    }

    newInstance.dockingLayout = p.getByteArray(DOCKINGLAYOUT, new byte[0]);

    String boundsString = p.get(FRAME_BOUNDS, null);
    Rectangle r = new Rectangle(0, 0, 800, 650);
    if (boundsString != null) {
        String[] a = boundsString.split(",", 4);
        if (a.length > 0) {
            try {
                r.x = Math.max(0, Integer.parseInt(a[0]));
            } catch (NumberFormatException nfe) {
                assert true;
            }
        }
        if (a.length > 1) {
            try {
                r.y = Math.max(0, Integer.parseInt(a[1]));
            } catch (NumberFormatException nfe) {
                assert true;
            }
        }
        if (a.length > 2) {
            try {
                r.width = Math.max(40, Integer.parseInt(a[2]));
            } catch (NumberFormatException nfe) {
                assert true;
            }
        }
        if (a.length > 3) {
            try {
                r.height = Math.max(40, Integer.parseInt(a[3]));
            } catch (NumberFormatException nfe) {
                assert true;
            }
        }
    }
    newInstance.frameBounds = r;
    newInstance.extendedWindowState = p.getInt(EXTENDED_WINDOW_STATE, Frame.NORMAL);

    newInstance.splitMain = p.getInt(SPLIT_MAIN, 400);
    newInstance.splitSummary = p.getInt(SPLIT_SUMMARY_NEW, 400);
    newInstance.splitTop = p.getInt(SPLIT_TOP, -1);
    newInstance.splitTreeComments = p.getInt(SPLIT_TREE_COMMENTS, 250);
    newInstance.packagePrefixSegments = p.getInt(PACKAGE_PREFIX_SEGEMENTS, 3);

    String plugins = p.get(CUSTOM_PLUGINS, "");
    if (plugins.length() > 0) {
        for (String s : plugins.split(" ")) {
            try {
                URI u = new URI(s);
                Plugin.addCustomPlugin(u);
                newInstance.customPlugins.add(u);
            } catch (PluginException e) {
                assert true;
            } catch (URISyntaxException e) {
                assert true;
            }
        }
    }

    String enabledPluginsString = p.get(ENABLED_PLUGINS, "");
    String disabledPluginsString = p.get(DISABLED_PLUGINS, "");
    newInstance.enabledPlugins = new ArrayList<String>(Arrays.asList(enabledPluginsString.split(",")));
    newInstance.disabledPlugins = new ArrayList<String>(Arrays.asList(disabledPluginsString.split(",")));

    instance = newInstance;
}

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From source file:org.apache.pdfbox.pdmodel.font.FileSystemFontProvider.java

private List<FSFontInfo> loadCache(List<File> files) {
    // Get the preferences database for this package.
    Preferences prefs = Preferences.userNodeForPackage(FileSystemFontProvider.class);
    List<FSFontInfo> results = new ArrayList<FSFontInfo>();
    for (File file : files) {
        // The second argument is the default if the key isn't found.
        byte[] stored = prefs.getByteArray(file.getAbsolutePath(), null);
        if (stored != null) {
            try {
                ByteArrayInputStream byteIn = new ByteArrayInputStream(stored);
                ObjectInputStream objectIn = new ObjectInputStream(byteIn);
                Object object = objectIn.readObject();
                if (object instanceof FSFontInfo) {
                    FSFontInfo info = (FSFontInfo) object;
                    info.parent = this;
                    results.add(info);//www .j  a v  a2  s  .c  om
                }
            } catch (ClassNotFoundException e) {
                LOG.error("Error loading font cache, will be re-built", e);
                return null;
            } catch (IOException e) {
                LOG.error("Error loading font cache, will be re-built", e);
                return null;
            }
        } else {
            // re-build the entire cache if we encounter un-cached fonts (could be optimised)
            LOG.warn("New fonts found, font cache will be re-built");
            return null;
        }
    }
    return results;
}

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From source file:org.netbeans.jcode.util.PreferenceUtils.java

public static <T> T get(Preferences pref, Class<T> _class) {
    T newInstance = null;/*from ww w  .  jav  a2s  .  c om*/
    //        ClassLoader ctxLoader = Thread.currentThread().getContextClassLoader();
    try {
        //            Thread.currentThread().setContextClassLoader(_class.getClassLoader());
        newInstance = _class.newInstance();
        return (T) PreferenceUtils.deserialize(
                pref.getByteArray(_class.getName(), PreferenceUtils.serialize((Serializable) newInstance)),
                _class.getClassLoader());
    } catch (InvalidClassException ex) {
        return newInstance;
    } catch (InstantiationException | IllegalAccessException ex) {
        Exceptions.printStackTrace(ex);
    } finally {
        //            Thread.currentThread().setContextClassLoader(ctxLoader);
    }
    return null;
}

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