Examples of java.util.prefs.Preferences.keys()

java.util.prefs.Preferences.keys()
Returns all of the keys that have an associated value in this preference node. (The returned array will be of size zero if this node has no preferences.)
If the implementation supports stored defaults and there are any such defaults at this node that have not been overridden, by explicit preferences, the defaults are returned in the array in addition to any explicit preferences. @return an array of the keys that have an associated value in thispreference node. @throws BackingStoreException if this operation cannot be completeddue to a failure in the backing store, or inability to communicate with it. @throws IllegalStateException if this node (or an ancestor) has beenremoved with the {@link #removeNode()} method.


        //setup values to be used
        final String testValue = "123Test";


        //setup mocked replies
        when(mockPreferences.keys()).thenReturn(new String[] { SingleObfuscatedConstants.TEST_PROPERTY });
        when(mockPreferences.get(eq(SingleObfuscatedConstants.TEST_PROPERTY), isNull(String.class))).thenReturn(
            "RESTRICTED::" + PicketBoxObfuscator.encode(testValue));


        //create object to test and inject required dependencies
        ObfuscatedPreferences test = new ObfuscatedPreferences(mockPreferences, SingleObfuscatedConstants.class);

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        //setup values to be used
        final String testValue = "123Test";


        //setup mocked replies
        when(mockPreferences.keys()).thenReturn(new String[] { SingleObfuscatedConstants.TEST_PROPERTY });
        when(mockPreferences.get(eq(SingleObfuscatedConstants.TEST_PROPERTY), isNull(String.class))).thenReturn(
            testValue).thenReturn(
            "RESTRICTED::" + PicketBoxObfuscator.encode(testValue));


        //create object to test and inject required dependencies

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        //setup values to be used
        final String testValue = "123Test";


        //setup mocked replies
        when(mockPreferences.keys()).thenReturn(new String[] { SingleObfuscatedConstants.TEST_PROPERTY });
        when(mockPreferences.get(eq(SingleObfuscatedConstants.TEST_PROPERTY), isNull(String.class))).thenReturn(
            "RESTRICTED::" + PicketBoxObfuscator.encode(testValue));


        //create object to test and inject required dependencies
        ObfuscatedPreferences testObject = new ObfuscatedPreferences(mockPreferences, SingleObfuscatedConstants.class);

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        //setup values to be used
        final String testValue = "123Test";


        //setup mocked replies
        when(mockPreferences.keys()).thenReturn(new String[] { SingleObfuscatedConstants.TEST_PROPERTY });
        when(mockPreferences.get(eq(SingleObfuscatedConstants.TEST_PROPERTY), isNull(String.class))).thenReturn(
            "RESTRICTED::" + testValue).thenReturn("RESTRICTED::" + PicketBoxObfuscator.encode(testValue));


        //create object to test and inject required dependencies
        ObfuscatedPreferences testObject = new ObfuscatedPreferences(mockPreferences, SingleObfuscatedConstants.class);

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        //setup values to be used
        final String testValue = "123Test";
        final String testDefaultValue = "Test456";


        //setup mocked replies
        when(mockPreferences.keys()).thenReturn(new String[] { SingleContants.TEST_PROPERTY });
        when(mockPreferences.get(eq(SingleContants.TEST_PROPERTY), isNull(String.class))).thenReturn(
            "RESTRICTED::" + PicketBoxObfuscator.encode(testValue));


        //create object to test and inject required dependencies
        ObfuscatedPreferences testObject = new ObfuscatedPreferences(mockPreferences, SingleContants.class);

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        //setup values to be used
        final String testValue = "123Test";
        final String testValueAfter = "Test456";


        //setup mocked replies
        when(mockPreferences.keys()).thenReturn(new String[] { SingleContants.TEST_PROPERTY });
        when(mockPreferences.get(eq(SingleContants.TEST_PROPERTY), isNull(String.class))).thenReturn(
            "RESTRICTED::" + PicketBoxObfuscator.encode(testValue),
            "RESTRICTED::" + PicketBoxObfuscator.encode(testValue),
            "RESTRICTED::" + PicketBoxObfuscator.encode(testValueAfter));

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    private Properties getAgentConfigurationProperties() {
        try {
            Properties properties = new Properties();
            Preferences prefs = getPreferencesNode();


            for (String key : prefs.keys()) {
                properties.setProperty(key, prefs.get(key, "?"));
            }


            return properties;
        } catch (Exception e) {

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            Preferences prefsNode = getPreferencesNode();
            if (clean_token) {
                prefsNode.removeNode();
            } else {
                // remove everything EXCEPT the security token
                String[] prefKeys = prefsNode.keys();
                if (prefKeys != null && prefKeys.length > 0) {
                    for (String prefKey : prefKeys) {
                        if (!prefKey.equals(AgentConfigurationConstants.AGENT_SECURITY_TOKEN)) {
                            prefsNode.remove(prefKey);
                        }

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        // remove everything EXCEPT the security token
        Preferences agentPrefs = getAgentPreferences();
        String[] prefKeys = null;


        try {
            prefKeys = agentPrefs.keys();
        } catch (Exception e) {
            log.warn("Failed to get agent preferences - cannot clear them: " + e);
        }


        if (prefKeys != null && prefKeys.length > 0) {

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    Properties values = new Properties();
    try {
      if ((getPreferences(wikipedia) != null) &&
          (getPreferences(wikipedia).nodeExists(property))) {
        Preferences node = getPreferences(wikipedia).node(property);
        String[] children = node.keys();
        for (String child : children) {
          values.setProperty(child, node.get(child, ""));
        }
      }
    } catch (BackingStoreException e) {

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