Examples of java.util.Properties.stringPropertyNames()

java.util.Properties.stringPropertyNames()
Returns a set of keys in this property list where the key and its corresponding value are strings, including distinct keys in the default property list if a key of the same name has not already been found from the main properties list. Properties whose key or value is not of type String are omitted.
The returned set is not backed by the Properties object. Changes to this Properties are not reflected in the set, or vice versa. @return a set of keys in this property list wherethe key and its corresponding value are strings, including the keys in the default property list. @see java.util.Properties#defaults @since 1.6

    private Properties prepareStartupContext(final BundleContext context) {
        Properties properties = new Properties();
        properties.putAll(System.getProperties());


        // override by what's defined in BundleContext,
        for (String key : properties.stringPropertyNames()) {
            String value = context.getProperty(key);
            if (value != null && !value.equals(System.getProperty(key))) {
                properties.setProperty(key, value);
            }
        }

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        final String installRootValue = properties.getProperty(com.sun.enterprise.glassfish.bootstrap.Constants.INSTALL_ROOT_PROP_NAME);
        if (installRootValue != null && !installRootValue.isEmpty()) {
            File installRoot = new File(installRootValue);
            System.setProperty(com.sun.enterprise.glassfish.bootstrap.Constants.INSTALL_ROOT_PROP_NAME, installRoot.getAbsolutePath());
            final Properties asenv = MainHelper.parseAsEnv(installRoot);
            for (String s : asenv.stringPropertyNames()) {
                System.setProperty(s, asenv.getProperty(s));
            }
            System.setProperty(com.sun.enterprise.glassfish.bootstrap.Constants.INSTALL_ROOT_URI_PROP_NAME, installRoot.toURI().toString());
        }
        final String instanceRootValue = properties.getProperty(com.sun.enterprise.glassfish.bootstrap.Constants.INSTANCE_ROOT_PROP_NAME);

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         */
        progOpts.setAuxInput(null);
        try {
            final AsadminInput.InputReader reader = AsadminInput.reader(auxInput);
            final Properties newOptions = reader.settings().get("option");
            for (String propName : newOptions.stringPropertyNames()) {
                newParamMap.add(propName, newOptions.getProperty(propName));
            }
            progOpts.updateOptions(newParamMap);
        } catch (Exception ex) {
            throw new RuntimeException(ex);

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    p.load(iStr);


    // Now, trim off any excess whitespace, if any, and then
    // add the properties from file to the received Properties
    // set.
        for (String tmpKey : p.stringPropertyNames()) {
    // get the value, trim off the whitespace, then store it
    // in the received properties object.
      String tmpValue = p.getProperty(tmpKey);
      tmpValue = tmpValue.trim();
      prop.put(tmpKey, tmpValue);

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        final String installRootValue = properties.getProperty(com.sun.enterprise.glassfish.bootstrap.Constants.INSTALL_ROOT_PROP_NAME);
        if (installRootValue != null && !installRootValue.isEmpty()) {
            File installRoot = new File(installRootValue);
            System.setProperty(com.sun.enterprise.glassfish.bootstrap.Constants.INSTALL_ROOT_PROP_NAME, installRoot.getAbsolutePath());
            final Properties asenv = ASMainHelper.parseAsEnv(installRoot);
            for (String s : asenv.stringPropertyNames()) {
                System.setProperty(s, asenv.getProperty(s));
            }
            System.setProperty(com.sun.enterprise.glassfish.bootstrap.Constants.INSTALL_ROOT_URI_PROP_NAME, installRoot.toURI().toString());
        }
        final String instanceRootValue = properties.getProperty(com.sun.enterprise.glassfish.bootstrap.Constants.INSTANCE_ROOT_PROP_NAME);

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         */
        progOpts.setAuxInput(null);
        try {
            final AsadminInput.InputReader reader = AsadminInput.reader(auxInput);
            final Properties newOptions = reader.settings().get("option");
            for (String propName : newOptions.stringPropertyNames()) {
                newParamMap.add(propName, newOptions.getProperty(propName));
            }
            progOpts.updateOptions(newParamMap);
        } catch (Exception ex) {
            throw new RuntimeException(ex);

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        private Map<String,Properties> loadSettings() throws IOException {
            final Map<String,Properties> result = new HashMap<String,Properties>();
            final Properties entireContent = new Properties();
            entireContent.load(reader);
            for (String propName : entireContent.stringPropertyNames()) {
                final int firstDot = propName.indexOf('.');
                if ( firstDot == -1) {
                    continue;
                }
                final String categoryName = propName.substring(0, firstDot);

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    // Process normalization options
    final Properties tokenizerOptions = StringUtils.argsToProperties(args);
    final TokenizerFactory<CoreLabel> tf = tokenizerOptions.containsKey("atb") ?
        ArabicTokenizer.atbFactory() : ArabicTokenizer.factory();
    for (String option : tokenizerOptions.stringPropertyNames()) {
      tf.setOptions(option);
    }


    // Replace line separators with a token so that we can
    // count lines

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    public Iterable<? extends FileDescriptor> scan(InputStream item, String path, Scope scope, Scanner scanner) throws IOException {
        Store store = getStore();
        PropertyFileDescriptor propertyFileDescriptor = store.create(PropertyFileDescriptor.class);
        Properties properties = new Properties();
        properties.load(item);
        for (String name : properties.stringPropertyNames()) {
            String value = properties.getProperty(name);
            PropertyDescriptor propertyDescriptor = store.create(PropertyDescriptor.class);
            propertyDescriptor.setName(name);
            propertyDescriptor.setValue(value);
            propertyFileDescriptor.getProperties().add(propertyDescriptor);

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  @SuppressWarnings("unchecked")
  private void loadMonitoring() {
    Properties systemProps = System.getProperties();
    Set<String> keys = systemProps.stringPropertyNames();
    try {
      if (keys.contains(CONF_MONITOR_CLASS)) {
        String monitorType = systemProps.getProperty(CONF_MONITOR_CLASS);
        Class<? extends MonitorService> klass;
        try {

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