Example usage for java.util.prefs Preferences childrenNames

Introduction

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

Prototype

public abstract String[] childrenNames() throws BackingStoreException;

Source Link

Document

Returns the names of the children of this preference node, relative to this node.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {

    Preferences prefs = Preferences.userNodeForPackage(java.lang.String.class);

    Preferences node = prefs.parent(); // /java
    node = node.parent(); // null

    String[] names = null;/*from   www  .  j  av  a 2 s .  c  o  m*/
    names = prefs.childrenNames();

    for (int i = 0; i < names.length; i++) {
        node = prefs.node(names[i]);
    }
}

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From source file:PreferenceExample.java

public static void main(String args[]) throws Exception {
    Preferences prefsRoot = Preferences.userRoot();
    Preferences myPrefs = prefsRoot.node("PreferenceExample");

    myPrefs.put("A", "a");
    myPrefs.put("B", "b");
    myPrefs.put("C", "c");

    System.out.print("Node's children: ");
    for (String s : myPrefs.childrenNames()) {
        System.out.print(s + "");
    }/*from  ww w  .j a v a  2s.c o m*/

}

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From source file:de.tbuchloh.kiskis.gui.common.Application.java

/**
 * @param prefs/*w ww.j  av a 2s  .  com*/
 *            the preferences object to load the program from
 * @return a list with Program-objects
 */
public static List<Program> loadPrograms(final Preferences prefs) {
    final List<Program> allProgs = new ArrayList<Program>();
    final Preferences n = prefs.node(Settings.K_URL_ALLPROGS_NODE);
    String[] progs;
    try {
        progs = n.childrenNames();
    } catch (final BackingStoreException e) {
        throw new Error(e);
    }
    for (final String prog : progs) {
        final Preferences child = n.node(prog);
        final String prefix = child.get(Settings.K_URL_PROG_PREFIX, null);
        final String cmd = child.get(Settings.K_URL_PROG_CMD, null);
        if (prefix == null || cmd == null) {
            LOG.error("The application " //$NON-NLS-1$
                    + prog + " is not specified correctly!"); //$NON-NLS-1$
            continue;
        }
        LOG.debug("command: " + cmd + " for prefix " + prefix); //$NON-NLS-1$ //$NON-NLS-2$
        allProgs.add(new Program(prefix, cmd));
    }

    if (progs.length == 0) {
        allProgs.add(new Program("http", DEFAULT_BROWSER + " " + URL_KEY));
    }
    return allProgs;
}

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From source file:PreferenceExample.java

public void printInformation(Preferences p) throws BackingStoreException {
    System.out.println("Node's absolute path: " + p.absolutePath());

    System.out.print("Node's children: ");
    for (String s : p.childrenNames()) {
        System.out.print(s + " ");
    }//from ww  w. ja  va  2s.c om
    System.out.println("");

    System.out.print("Node's keys: ");
    for (String s : p.keys()) {
        System.out.print(s + " ");
    }
    System.out.println("");

    System.out.println("Node's name: " + p.name());
    System.out.println("Node's parent: " + p.parent());
    System.out.println("NODE: " + p);
    System.out.println("userNodeForPackage: " + Preferences.userNodeForPackage(PreferenceExample.class));

    System.out.println("All information in node");
    for (String s : p.keys()) {
        System.out.println("  " + s + " = " + p.get(s, ""));
    }
}

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From source file:org.pdfsam.module.PreferencesUsageDataStore.java

public List<ModuleUsage> getUsages() {
    Preferences prefs = Preferences.userRoot().node(USAGE_PATH);
    List<ModuleUsage> retList = new ArrayList<>();
    try {/*from  ww  w.j a va 2s  . c  o m*/
        List<String> jsons = Arrays.stream(prefs.childrenNames()).parallel().map(name -> prefs.node(name))
                .map(node -> node.get(MODULE_USAGE_KEY, "")).filter(json -> isNotBlank(json)).collect(toList());
        for (String json : jsons) {
            retList.add(JSON.std.beanFrom(ModuleUsage.class, json));
        }
    } catch (BackingStoreException | IOException e) {
        LOG.error("Unable to get modules usage statistics", e);
    }
    return retList;
}

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From source file:de.fhg.igd.mapviewer.server.wms.wizard.pages.BasicConfigurationWithWMSListPage.java

@Override
public void createComponent() {
    super.createComponent();

    Button storeWMS = new Button(getComposite(), SWT.PUSH);
    storeWMS.setText(Messages.WMSListConfigurationPage_2);

    // add new WMS to list and refresh
    storeWMS.addSelectionListener(new SelectionAdapter() {

        @Override//from  w w  w  .j  av a  2 s .  com
        public void widgetSelected(SelectionEvent e) {
            // store WMS i UI list
            map.put(getServiceName(), getServiceURL());
            getListForUI(listUI);
            comboViewer.refresh();
        }
    });

    // free line
    new Text(getComposite(), SWT.NONE).setEditable(false);
    new Text(getComposite(), SWT.NONE).setEditable(false);
    new Text(getComposite(), SWT.NONE).setEditable(false);
    new Text(getComposite(), SWT.NONE).setEditable(false);
    new Text(getComposite(), SWT.NONE).setEditable(false);

    // add text and combo viewer
    Text text = new Text(getComposite(), SWT.NONE);
    text.setEditable(false);
    text.setText(Messages.WMSListConfigurationPage_0);

    // get a list of all WMS

    // get all WMS, storing as WMS Map Server
    Preferences PREF_SERVERS = new WMSMapServer().getPreferences();

    String[] prefs = null;
    try {
        prefs = PREF_SERVERS.childrenNames();

        // put all in map
        for (String current : prefs) {

            Preferences child = PREF_SERVERS.node(current);
            map.put(current, child.get("baseUrl", "baseUrl"));
        }

    } catch (BackingStoreException e) {
        log.warn(Messages.WMSListConfigurationPage_1, e); // $NON-NLS-1$
    }

    // get all WMS, storing as extension points
    IConfigurationElement[] allER = Platform.getExtensionRegistry()
            .getConfigurationElementsFor("de.fhg.igd.mapviewer.server.MapServer");

    for (IConfigurationElement current : allER) {
        String name = "";
        String url = "";

        // name is stored directly as attribute
        name = current.getAttribute("name");

        // url is stored as child
        for (IConfigurationElement child : current.getChildren()) {
            if (child.getAttribute("name").equals("baseUrl")) {
                url = child.getAttribute("value");
            }
        }
        // store everything into map
        if (name != null && !name.isEmpty() && url != null && !url.isEmpty()) {
            map.put(name, url);
        }
    }

    // show stored WMS as DropDown
    comboViewer = new ComboViewer(getComposite(), SWT.DROP_DOWN | SWT.BORDER | SWT.READ_ONLY);
    comboViewer.setContentProvider(new ArrayContentProvider());
    getListForUI(listUI);
    comboViewer.setInput(listUI);
    comboViewer.addSelectionChangedListener(new ISelectionChangedListener() {

        @Override
        public void selectionChanged(SelectionChangedEvent event) {
            IStructuredSelection selection = (IStructuredSelection) event.getSelection();
            if (selection.size() > 0) {
                String currentSelection = (String) selection.getFirstElement();
                name.setStringValue(currentSelection);
                location.setStringValue(map.get(currentSelection));
            }
        }
    });
}

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From source file:com.adito.server.DefaultAditoServerFactory.java

void copyNode(Preferences from, Preferences to) throws BackingStoreException {
    String[] keys = from.keys();//  w w w  . j  av  a2s  . c  om
    for (String key : keys) {
        to.put(key, from.get(key, ""));
    }
    String childNodes[] = from.childrenNames();
    for (String childNode : childNodes) {
        Preferences cn = from.node(childNode);
        Preferences tn = to.node(childNode);
        copyNode(cn, tn);
    }
}

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From source file:com.adito.server.Main.java

void copyNode(Preferences from, Preferences to) throws BackingStoreException {
    String[] keys = from.keys();//from  w w  w .j  a  v a  2s .  c  o  m
    for (int i = 0; i < keys.length; i++) {
        to.put(keys[i], from.get(keys[i], ""));
    }
    String childNodes[] = from.childrenNames();
    for (int i = 0; i < childNodes.length; i++) {
        Preferences cn = from.node(childNodes[i]);
        Preferences tn = to.node(childNodes[i]);
        copyNode(cn, tn);
    }
}

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From source file:org.apache.cayenne.modeler.CodeTemplateManager.java

/**
 * Updates custom templates from preferences.
 *//*from   ww  w  .j  a  va2s  . com*/
public void updateCustomTemplates(Preferences preference) {
    String[] keys = null;
    try {
        keys = preference.childrenNames();
    } catch (BackingStoreException e) {
        logger.warn("Error reading preferences");
    }
    this.customTemplates = new HashMap<>(keys.length, 1);

    for (int j = 0; j < keys.length; j++) {
        FSPath path = new FSPath(preference.node(keys[j]));
        customTemplates.put(keys[j], path.getPath());
    }
}

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From source file:org.javaswift.cloudie.login.CredentialsStore.java

/**
 * lists the available credentials for this user.
 * @return the credentials.//from   www  .  ja v  a  2 s  .  co m
 */
public List<Credentials> getAvailableCredentials() {
    List<Credentials> results = new ArrayList<Credentials>();
    try {
        Preferences prefs = Preferences.userNodeForPackage(CredentialsStore.class);
        for (String node : prefs.childrenNames()) {
            Preferences cred = prefs.node(node);
            try {
                results.add(toCredentials(cred));
            } catch (IllegalArgumentException ex) {
                LoggerFactory.getLogger(getClass()).warn("Bad preferences node - skipping");
            }
        }
    } catch (BackingStoreException ex) {
        throw new RuntimeException(ex);
    }
    return results;
}

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