Examples of org.gradle.gradleplugin.foundation.settings.SettingsNode

Package org.gradle.gradleplugin.foundation.settings

Examples of org.gradle.gradleplugin.foundation.settings.SettingsNode

org.gradle.gradleplugin.foundation.settings.SettingsNode
This provides a mechanism for storing settings. It is a hybrid of a DOM (like xml) and something much simpler like the java preferences. It is first meant to be easy to use. Second, it is supposed to abstract how the settings are actually stored. The point is to allow IDEs and such to store this is whatever manner they choose. Thus, this is vague. Third, it is meant to be relatively easy to implement. While this is a hiearchy, it is not meant to be as complex as XML with arbitrary attributes. Instead, it is only meant to be a key-value pairing. However, the hiearchy allows you to easily have lists and other complex structures without having to worry about name collisions as you would if this were a pure key-value pair. This is meant to be a single tree for the entire application. You shouldn't create these on your own. A node for your use should be given to you by your parent. Only the highest level object should directly create an instance of one of these. It should manage saving and restore these settings. Due to how some 'owners' of the settings work, you should save your settings immediately here (think of this as you would a database). Why? Well, for example: when Idea is the owner in the gradle Idea plugin, it attempts to store its settings very frequently and uses differences in the results to determine if changes have been made to a plugin. As a result, we store things in the setting immediately. This node consists to 3 things: - name: this is the 'key' of key-value pair. It is required. - value: this is the 'value' of key-value pair. It is NOT required. - child nodes: each node can have children nodes. Using these you can create a tree structure storing whatever you like. If you need multiple attributes like XML has, you should create children instead. So if, in xml, you wanted to do: do this instead: node name="myName" value="myvalue" node name="myotherattribute" value="attribute1" node name="somethingelse" value="attribute2" This has several convenience functions for setting and getting values from child nodes. These are meant to be used in more of a java preferences replacement. You should create your own root node of your settings (by call addChildIfNotPresent from a node that is given to you) then you can use these functions and you only need to worry about uniqueness within your own node. @author mhunsicker


        //now try it with one that doesn't exist. We should get the default value
        assertEquals(44, rootNode.getValueOfChildAsInt("nonexistent", 44));


        //now add a single node but don't give it a value (which means its null)
        SettingsNode valuelessNode = rootNode.addChild("valueless");
        assertNull(valuelessNode.getValue());


        //now try to get its value. We should get the default value
        assertEquals(17, rootNode.getValueOfChildAsInt("valueless", 17));


        //now add a single node that has an illegal value
        SettingsNode illegalNode = rootNode.addChild("illegal");
        illegalNode.setValue("abcdefg");


        //now try to get its value. We should get the default value
        assertEquals(333, rootNode.getValueOfChildAsInt("illegal", 333));
    }

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        //set the value of a child
        rootNode.setValueOfChildAsLong(SAMPLE_NAME_1, 8000000000l);


        //verify it was set properly
        SettingsNode childNode1 = rootNode.getChildNode(SAMPLE_NAME_1);
        assertNotNull(childNode1);
        assertEquals("8000000000", childNode1.getValue());


        //make sure there's only 1 child.
        children = rootNode.getChildNodes();
        assertEquals(1, children.size());


        //set the value again. This should set the value and NOT add an additional node
        rootNode.setValueOfChildAsLong(SAMPLE_NAME_1, 3900000000l);
        childNode1 = rootNode.getChildNode(SAMPLE_NAME_1);
        assertNotNull(childNode1);
        assertEquals("3900000000", childNode1.getValue());


        //make sure there's still only 1 child.
        children = rootNode.getChildNodes();
        assertEquals(1, children.size());
    }

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        //now try it with one that doesn't exist. We should get the default value
        assertEquals(4400000000l, rootNode.getValueOfChildAsLong("nonexistent", 4400000000l));


        //now add a single node but don't give it a value (which means its null)
        SettingsNode valuelessNode = rootNode.addChild("valueless");
        assertNull(valuelessNode.getValue());


        //now try to get its value. We should get the default value
        assertEquals(1700000000l, rootNode.getValueOfChildAsLong("valueless", 1700000000l));


        //now add a single node that has an illegal value
        SettingsNode illegalNode = rootNode.addChild("illegal");
        illegalNode.setValue("abcdefg");


        //now try to get its value. We should get the default value
        assertEquals(33300000000l, rootNode.getValueOfChildAsLong("illegal", 33300000000l));
    }

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        //set the value of a child
        rootNode.setValueOfChildAsBoolean(SAMPLE_NAME_1, true);


        //verify it was set properly
        SettingsNode childNode1 = rootNode.getChildNode(SAMPLE_NAME_1);
        assertNotNull(childNode1);
        assertEquals("true", childNode1.getValue());


        //make sure there's only 1 child.
        children = rootNode.getChildNodes();
        assertEquals(1, children.size());


        //set the value again. This should set the value and NOT add an additional node
        rootNode.setValueOfChildAsBoolean(SAMPLE_NAME_1, false);
        childNode1 = rootNode.getChildNode(SAMPLE_NAME_1);
        assertNotNull(childNode1);
        assertEquals("false", childNode1.getValue());


        //make sure there's still only 1 child.
        children = rootNode.getChildNodes();
        assertEquals(1, children.size());


        //set the value again to the same value. Again, this should set the value and NOT add an additional node
        rootNode.setValueOfChildAsBoolean(SAMPLE_NAME_1, false);
        childNode1 = rootNode.getChildNode(SAMPLE_NAME_1);
        assertNotNull(childNode1);
        assertEquals("false", childNode1.getValue());


        //make sure there's still only 1 child.
        children = rootNode.getChildNodes();
        assertEquals(1, children.size());
    }

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        //see header
        assertEquals(false, rootNode.getValueOfChildAsBoolean("nonexistent2", false));


        //now add a single node but don't give it a value (which means its null)
        SettingsNode valuelessNode = rootNode.addChild("valueless");
        assertNull(valuelessNode.getValue());


        //now try to get its value. We should get the default value
        assertEquals(true, rootNode.getValueOfChildAsBoolean("valueless", true));


        //see header
        assertEquals(false, rootNode.getValueOfChildAsBoolean("valueless", false));


        //now add a single node that has an illegal value
        SettingsNode illegalNode = rootNode.addChild("illegal");
        illegalNode.setValue("abcdefg");


        //now try to get its value. We should get the default value
        assertEquals(true, rootNode.getValueOfChildAsBoolean("illegal", true));


        //see header

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    /**
     * Call this to read the JDOMSerializable from a file.
     */
    public static boolean importFromFile(ImportInteraction importInteraction, FileFilter fileFilter, SettingsSerializable... serializables) {
        SettingsNode settings = readSettingsFile(importInteraction, fileFilter);
        if (settings == null) {
            return false;
        }


        for (int index = 0; index < serializables.length; index++) {

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    public void serializeOut(SettingsNode settings) {
        serializeOut(settings, favorites);
    }


    public static void serializeOut(SettingsNode settings, List<FavoriteTask> favorites) {
        SettingsNode rootNode = settings.addChildIfNotPresent(ROOT_TAG);
        rootNode.removeAllChildren(); //clear out whatever may have already been there


        Iterator<FavoriteTask> iterator = favorites.iterator();
        while (iterator.hasNext()) {
            FavoriteTask favoriteTask = iterator.next();


            SettingsNode taskNode = rootNode.addChild(FAVORITE_ELEMENT_TAG);
            taskNode.setValueOfChild(FULL_COMMAND_LINE, favoriteTask.getFullCommandLine());
            taskNode.setValueOfChild(DISPLAY_NAME, favoriteTask.getDisplayName());
            taskNode.setValueOfChildAsBoolean(SHOW_OUTPUT, favoriteTask.alwaysShowOutput());
        }
    }

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    }


    public static void serializeIn(SettingsNode settings, List<FavoriteTask> favorites) {
        favorites.clear();  //remove everything already there


        SettingsNode rootElement = settings.getChildNode(ROOT_TAG);
        if (rootElement == null) {
            return;
        }


        Iterator<SettingsNode> iterator = rootElement.getChildNodes(FAVORITE_ELEMENT_TAG).iterator();
        while (iterator.hasNext()) {
            SettingsNode taskNode = iterator.next();


            String fullCommandLine = taskNode.getValueOfChild(FULL_COMMAND_LINE, null);
            if (fullCommandLine != null) {
                String displayName = taskNode.getValueOfChild(DISPLAY_NAME, fullCommandLine);
                boolean showOutput = taskNode.getValueOfChildAsBoolean(SHOW_OUTPUT, false);


                addFavoriteTask(favorites, fullCommandLine, displayName, showOutput);
            }
        }
    }

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    public static SettingsNode saveSettings(SettingsNode settingsNode, Window window, String id, Class windowClass) {
        Point p = window.getLocation();
        Dimension size = window.getSize();


        SettingsNode childNode = settingsNode.addChildIfNotPresent(getPrefix(windowClass, id));


        childNode.setValueOfChildAsInt(WINDOW_X, p.x);
        childNode.setValueOfChildAsInt(WINDOW_Y, p.y);
        childNode.setValueOfChildAsInt(WINDOW_WIDTH, size.width);
        childNode.setValueOfChildAsInt(WINDOW_HEIGHT, size.height);


        return childNode;
    }

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    public static void saveSettings(SettingsNode settingsNode, JFrame frame, String id, Class windowClass) {
        if (frame.getExtendedState() == JFrame.ICONIFIED) {
            return;
        }


        SettingsNode childNode = saveSettings(settingsNode, (Window) frame, id, windowClass);


        if (frame.getExtendedState() != JFrame.ICONIFIED) {
            childNode.setValueOfChildAsInt(EXTENDED_STATE, frame.getExtendedState());
        }
    }

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