Examples of java.beans.PropertyEditor

java.beans.PropertyEditor
A PropertyEditor class provides support for GUIs that want to allow users to edit a property value of a given type.
PropertyEditor supports a variety of different kinds of ways of displaying and updating property values. Most PropertyEditors will only need to support a subset of the different options available in this API.
Simple PropertyEditors may only support the getAsText and setAsText methods and need not support (say) paintValue or getCustomEditor. More complex types may be unable to support getAsText and setAsText but will instead support paintValue and getCustomEditor.
Every propertyEditor must support one or more of the three simple display styles. Thus it can either (1) support isPaintable or (2) both return a non-null String[] from getTags() and return a non-null value from getAsText or (3) simply return a non-null String from getAsText().
Every property editor must support a call on setValue when the argument object is of the type for which this is the corresponding propertyEditor. In addition, each property editor must either support a custom editor, or support setAsText.
Each PropertyEditor should have a null constructor.

            "  <dep:hidden-classes/>\n" +
            "  <dep:non-overridable-classes/>\n" +
            "</dep:environment>";


    public void xtestPropertyEditor() throws Exception {
        PropertyEditor editor = new EnvironmentBuilder();
        editor.setAsText(ENV_1);
        Environment environment = (Environment) editor.getValue();
        editor.setValue(environment);
        String text = editor.getAsText();
        assertEquals(text, ENV_1);
    }

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        assertEquals(text, ENV_1);
    }


    public void testPropertyEditorRegistration() throws Exception {
        ServiceConfigBuilder.getGBeanInfo();
        PropertyEditor propertyEditor = PropertyEditorManager.findEditor(Environment.class);
        assertTrue(propertyEditor instanceof EnvironmentBuilder);
    }

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        if (value == null) {
            return null;
        }


        try {
            PropertyEditor editor = PropertyEditors.findEditor(attribute.getType(), classLoader);
            if (editor == null) {
                log.debug("Unable to parse attribute of type " + attribute.getType() + "; no editor found");
                return null;
            }
            editor.setAsText(value);
            log.debug("Setting value for " + configurationName + "/" + gbeanName + "/" + attribute.getName() + " to value " + value);
            return editor.getValue();
        } catch (ClassNotFoundException e) {
            log.error("Unable to load attribute type " + attribute.getType());
            return null;
        }
    }

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    public static String getAsText(Object value, String type) throws InvalidAttributeException {
        try {
            String attributeStringValue = null;
            if (value != null) {
                PropertyEditor editor = PropertyEditors.findEditor(type, GBeanOverride.class.getClassLoader());
                if (editor == null) {
                    throw new InvalidAttributeException("Unable to format attribute of type " + type + "; no editor found");
                }
                editor.setValue(value);
                attributeStringValue = editor.getAsText();
            }
            return attributeStringValue;
        } catch (ClassNotFoundException e) {
            //todo: use the Configuration's ClassLoader to load the attribute, if this ever becomes an issue
            throw new InvalidAttributeException("Unable to store attribute type " + type);

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            // FIXME we should throw something better
            throw new ConfigurationLoadException(e.getCause());
        }


        // do we have a property editor for it?
        PropertyEditor editor = PropertyEditorManager.findEditor(type);
        if (editor != null) {
            try {
                editor.setAsText(text);
                return new SingletonObjectFactory(editor.getValue());
            } catch (IllegalArgumentException e) {
                // FIXME we should throw something better
                throw new ConfigurationLoadException(e);


            }

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    private Object convertValueForAssignment(Object target, String value)
    {
        if (value == null || _propertyType.isInstance(value))
            return value;


        PropertyEditor e = PropertyEditorManager.findEditor(_propertyType);


        if (e == null)
        {
            Object convertedValue = instantiateViaStringConstructor(target, value);


            if (convertedValue != null)
                return convertedValue;


            throw new ApplicationRuntimeException(UtilMessages.noPropertyEditor(
                    _propertyName,
                    target.getClass()));
        }


        try
        {
            e.setAsText(value);


            return e.getValue();
        }
        catch (Exception ex)
        {
            throw new ApplicationRuntimeException(UtilMessages.unableToConvert(
                    value,

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            if (Number.class.isAssignableFrom(clazz) || Date.class.isAssignableFrom(clazz)) {
                return null;
            }
        }


        PropertyEditor editor = PropertyEditors.getEditor(clazz);
        editor.setAsText(value);
        return editor.getValue();
    }

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            "  <dep:hidden-classes/>\n" +
            "  <dep:non-overridable-classes/>\n" +
            "</dep:environment>";


    public void xtestPropertyEditor() throws Exception {
        PropertyEditor editor = new EnvironmentBuilder();
        editor.setAsText(ENV_1);
        Environment environment = (Environment) editor.getValue();
        editor.setValue(environment);
        String text = editor.getAsText();
        assertEquals(text, ENV_1);
    }

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        assertEquals(text, ENV_1);
    }


    public void testPropertyEditorRegistration() throws Exception {
        ServiceConfigBuilder.getGBeanInfo();
        PropertyEditor propertyEditor = PropertyEditorManager.findEditor(Environment.class);
        assertTrue(propertyEditor instanceof EnvironmentBuilder);
    }

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                    throw new DeploymentException("Unknown attribute " + name + " on " + gbean.getAbstractName());
                }
                type = attribute.getType();
            }


            PropertyEditor editor = PropertyEditors.findEditor(type, classLoader);
            if (editor == null) {
                throw new DeploymentException("Unable to find PropertyEditor for " + type);
            }
            editor.setAsText(text);
            Object value = editor.getValue();
            gbean.setAttribute(name, value);
        } catch (DeploymentException e) {
            throw e;
        } catch (ClassNotFoundException e) {
            throw new DeploymentException("Unable to find PropertyEditor for " + type, e);

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