Examples of org.apache.tapestry.services.BindingFactory

org.apache.tapestry.services.BindingFactory
Creates a binding of a particular type.

    }


    @Test
    public void expression_prefix_not_in_configuration()
    {
        BindingFactory factory = newBindingFactory();
        Binding binding = newBinding();
        ComponentResources container = newComponentResources();
        ComponentResources component = newComponentResources();
        Location l = newLocation();

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    }


    @Test
    public void known_prefix()
    {
        BindingFactory factory = newBindingFactory();
        Binding binding = newBinding();
        ComponentResources container = newComponentResources();
        ComponentResources component = newComponentResources();
        Location l = newLocation();

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    }


    @Test
    public void factory_throws_exception()
    {
        BindingFactory factory = newBindingFactory();
        ComponentResources container = newComponentResources();
        ComponentResources component = newComponentResources();
        Location l = newLocation();
        Throwable t = new RuntimeException("Simulated failure.");


        String defaultPrefix = "def";
        String description = "descrip";
        String expression = "full expression";


        factory.newBinding(description, container, component, expression, l);
        setThrowable(t);


        replay();


        Map<String, BindingFactory> map = newMap();

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        configuration.add("ClearCachesOnInvalidation", clearCaches);
    }


    public void contributePropBindingFactory(OrderedConfiguration<BindingFactory> configuration)
    {
        BindingFactory keywordFactory = new BindingFactory()
        {
            private final Map<String, Object> _keywords = newCaseInsensitiveMap();


            {
                _keywords.put("true", Boolean.TRUE);
                _keywords.put("false", Boolean.FALSE);
                _keywords.put("null", null);
            }


            public Binding newBinding(String description, ComponentResources container,
                    ComponentResources component, String expression, Location location)
            {
                String key = expression.trim();


                if (_keywords.containsKey(key))
                    return new LiteralBinding(description, _keywords.get(key), location);


                return null;
            }
        };


        BindingFactory thisFactory = new BindingFactory()
        {


            public Binding newBinding(String description, ComponentResources container,
                    ComponentResources component, String expression, Location location)
            {
                if ("this".equalsIgnoreCase(expression.trim()))
                    return new LiteralBinding(description, container.getComponent(), location);


                return null;
            }
        };


        BindingFactory longFactory = new BindingFactory()
        {
            private final Pattern _pattern = Pattern.compile("^\\s*(-?\\d+)\\s*$");


            public Binding newBinding(String description, ComponentResources container,
                    ComponentResources component, String expression, Location location)
            {
                Matcher matcher = _pattern.matcher(expression);


                if (matcher.matches())
                {
                    String value = matcher.group(1);


                    return new LiteralBinding(description, new Long(value), location);
                }


                return null;
            }
        };


        BindingFactory intRangeFactory = new BindingFactory()
        {
            private final Pattern _pattern = Pattern
                    .compile("^\\s*(-?\\d+)\\s*\\.\\.\\s*(-?\\d+)\\s*$");


            public Binding newBinding(String description, ComponentResources container,
                    ComponentResources component, String expression, Location location)
            {
                Matcher matcher = _pattern.matcher(expression);


                if (matcher.matches())
                {
                    int start = Integer.parseInt(matcher.group(1));
                    int finish = Integer.parseInt(matcher.group(2));


                    IntegerRange range = new IntegerRange(start, finish);


                    return new LiteralBinding(description, range, location);
                }


                return null;
            }
        };


        BindingFactory doubleFactory = new BindingFactory()
        {
            // So, either 1234. or 1234.56 or .78
            private final Pattern _pattern = Pattern
                    .compile("^\\s*(\\-?((\\d+\\.)|(\\d*\\.\\d+)))\\s*$");


            public Binding newBinding(String description, ComponentResources container,
                    ComponentResources component, String expression, Location location)
            {
                Matcher matcher = _pattern.matcher(expression);


                if (matcher.matches())
                {
                    String value = matcher.group(1);


                    return new LiteralBinding(description, new Double(value), location);
                }


                return null;
            }
        };


        BindingFactory stringFactory = new BindingFactory()
        {
            // This will match embedded single quotes as-is, no escaping necessary.


            private final Pattern _pattern = Pattern.compile("^\\s*'(.*)'\\s*$");

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        return _chainBuilder.build(BindingFactory.class, configuration);
    }


    public void contributePropBindingFactory(OrderedConfiguration<BindingFactory> configuration)
    {
        BindingFactory keywordFactory = new BindingFactory()
        {
            private final Map<String, Object> _keywords = newMap();


            {
                _keywords.put("true", Boolean.TRUE);
                _keywords.put("false", Boolean.FALSE);
                _keywords.put("null", null);
            }


            public Binding newBinding(String description, ComponentResources container,
                    ComponentResources component, String expression, Location location)
            {
                String key = expression.trim().toLowerCase();


                if (_keywords.containsKey(key))
                    return new LiteralBinding(description, _keywords.get(key), location);


                return null;
            }
        };


        BindingFactory thisFactory = new BindingFactory()
        {


            public Binding newBinding(String description, ComponentResources container,
                    ComponentResources component, String expression, Location location)
            {
                if ("this".equalsIgnoreCase(expression.trim()))
                    return new LiteralBinding(description, container.getComponent(), location);


                return null;
            }
        };


        BindingFactory longFactory = new BindingFactory()
        {
            private final Pattern _pattern = Pattern.compile("^\\s*(-?\\d+)\\s*$");


            public Binding newBinding(String description, ComponentResources container,
                    ComponentResources component, String expression, Location location)
            {
                Matcher matcher = _pattern.matcher(expression);


                if (matcher.matches())
                {
                    String value = matcher.group(1);


                    return new LiteralBinding(description, new Long(value), location);
                }


                return null;
            }
        };


        BindingFactory intRangeFactory = new BindingFactory()
        {
            private final Pattern _pattern = Pattern
                    .compile("^\\s*(-?\\d+)\\s*\\.\\.\\s*(-?\\d+)\\s*$");


            public Binding newBinding(String description, ComponentResources container,
                    ComponentResources component, String expression, Location location)
            {
                Matcher matcher = _pattern.matcher(expression);


                if (matcher.matches())
                {
                    int start = Integer.parseInt(matcher.group(1));
                    int finish = Integer.parseInt(matcher.group(2));


                    IntegerRange range = new IntegerRange(start, finish);


                    return new LiteralBinding(description, range, location);
                }


                return null;
            }
        };


        BindingFactory doubleFactory = new BindingFactory()
        {
            // So, either 1234. or 1234.56 or .78
            private final Pattern _pattern = Pattern
                    .compile("^\\s*(\\-?((\\d+\\.)|(\\d*\\.\\d+)))\\s*$");


            public Binding newBinding(String description, ComponentResources container,
                    ComponentResources component, String expression, Location location)
            {
                Matcher matcher = _pattern.matcher(expression);


                if (matcher.matches())
                {
                    String value = matcher.group(1);


                    return new LiteralBinding(description, new Double(value), location);
                }


                return null;
            }
        };


        BindingFactory stringFactory = new BindingFactory()
        {
            // This will match embedded single quotes as-is, no escaping necessary.


            private final Pattern _pattern = Pattern.compile("^\\s*'(.*)'\\s*$");

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        // Location might be null


        String subexpression = expression;
        int colonx = expression.indexOf(':');


        BindingFactory factory = null;


        if (colonx > 0)
        {
            String prefix = expression.substring(0, colonx);


            factory = _factories.get(prefix);
            if (factory != null)
                subexpression = expression.substring(colonx + 1);
        }


        if (factory == null)
            factory = _factories.get(defaultPrefix);


        // And if that's null, what then? We assume that the default prefix is a valid prefix,
        // or we'll get an NPE below and report it like any other error.


        try
        {
            return factory.newBinding(description, container, component, subexpression, location);
        }
        catch (Exception ex)
        {
            throw new TapestryException(ServicesMessages.bindingSourceFailure(expression, ex),
                    location, ex);

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        // Location might be null


        String subexpression = expression;
        int colonx = expression.indexOf(':');


        BindingFactory factory = null;


        if (colonx > 0)
        {
            String prefix = expression.substring(0, colonx);


            factory = _factories.get(prefix);
            if (factory != null)
                subexpression = expression.substring(colonx + 1);
        }


        if (factory == null)
            factory = _factories.get(defaultPrefix);


        // And if that's null, what then? We assume that the default prefix is a valid prefix,
        // or we'll get an NPE below and report it like any other error.


        try
        {
            return factory.newBinding(description, container, component, subexpression, location);
        }
        catch (Exception ex)
        {
            throw new TapestryException(ServicesMessages.bindingSourceFailure(expression, ex),
                                        location, ex);

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        configuration.add("ClearCachesOnInvalidation", clearCaches);
    }


    public void contributePropBindingFactory(OrderedConfiguration<BindingFactory> configuration)
    {
        BindingFactory keywordFactory = new BindingFactory()
        {
            private final Map<String, Object> _keywords = newCaseInsensitiveMap();


            {
                _keywords.put("true", Boolean.TRUE);
                _keywords.put("false", Boolean.FALSE);
                _keywords.put("null", null);
            }


            public Binding newBinding(String description, ComponentResources container,
                    ComponentResources component, String expression, Location location)
            {
                String key = expression.trim();


                if (_keywords.containsKey(key))
                    return new LiteralBinding(description, _keywords.get(key), location);


                return null;
            }
        };


        BindingFactory thisFactory = new BindingFactory()
        {


            public Binding newBinding(String description, ComponentResources container,
                    ComponentResources component, String expression, Location location)
            {
                if ("this".equalsIgnoreCase(expression.trim()))
                    return new LiteralBinding(description, container.getComponent(), location);


                return null;
            }
        };


        BindingFactory longFactory = new BindingFactory()
        {
            private final Pattern _pattern = Pattern.compile("^\\s*(-?\\d+)\\s*$");


            public Binding newBinding(String description, ComponentResources container,
                    ComponentResources component, String expression, Location location)
            {
                Matcher matcher = _pattern.matcher(expression);


                if (matcher.matches())
                {
                    String value = matcher.group(1);


                    return new LiteralBinding(description, new Long(value), location);
                }


                return null;
            }
        };


        BindingFactory intRangeFactory = new BindingFactory()
        {
            private final Pattern _pattern = Pattern
                    .compile("^\\s*(-?\\d+)\\s*\\.\\.\\s*(-?\\d+)\\s*$");


            public Binding newBinding(String description, ComponentResources container,
                    ComponentResources component, String expression, Location location)
            {
                Matcher matcher = _pattern.matcher(expression);


                if (matcher.matches())
                {
                    int start = Integer.parseInt(matcher.group(1));
                    int finish = Integer.parseInt(matcher.group(2));


                    IntegerRange range = new IntegerRange(start, finish);


                    return new LiteralBinding(description, range, location);
                }


                return null;
            }
        };


        BindingFactory doubleFactory = new BindingFactory()
        {
            // So, either 1234. or 1234.56 or .78
            private final Pattern _pattern = Pattern
                    .compile("^\\s*(\\-?((\\d+\\.)|(\\d*\\.\\d+)))\\s*$");


            public Binding newBinding(String description, ComponentResources container,
                    ComponentResources component, String expression, Location location)
            {
                Matcher matcher = _pattern.matcher(expression);


                if (matcher.matches())
                {
                    String value = matcher.group(1);


                    return new LiteralBinding(description, new Double(value), location);
                }


                return null;
            }
        };


        BindingFactory stringFactory = new BindingFactory()
        {
            // This will match embedded single quotes as-is, no escaping necessary.


            private final Pattern _pattern = Pattern.compile("^\\s*'(.*)'\\s*$");

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Related Classes of org.apache.tapestry.services.BindingFactory

org.apache.tapestry.internal.bindings.BindingFactoryTest

org.apache.tapestry.internal.bindings.ValidateBindingFactoryTest

org.apache.tapestry.internal.services.BindingSourceImpl

org.apache.tapestry.internal.services.BindingSourceImplTest

org.apache.tapestry.internal.services.InternalModule

org.apache.tapestry.services.impl.BindingSourceImpl

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