Class Types
- Object
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- Types
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- Direct Known Subclasses:
Types
public class Types extends Object
This is a set of utility methods used when implementing types.This set of classes captures the all important how does it work questions, particularly with respect to super types. FIXME: These methods need a Q&A check to confirm correct use of Super TODO: Cannot tell the difference in intent from FeatureTypes
- Author:
- Jody Garnett, LISAsoft, Justin Deoliveira, The Open Planning Project
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Field Summary
Fields Modifier and Type Field Description static String
DECLARED_NAMESPACES_MAP
Key for AppSchema declared namespaces on FeatureType user data Map.
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Constructor Summary
Constructors Constructor Description Types()
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static void
assertNameAssignable(FeatureType expected, FeatureType actual)
FeatureType comparison indicating if the description provided by two FeatureTypes is similar to the point data can be exchanged.static void
assertOrderAssignable(SimpleFeatureType expected, SimpleFeatureType actual)
SimpleFeatureType comparison indicating that data from one FeatureType can be exchanged with another - specifically ensuring that the order / value is a reasonable match with the expected number of attributes on each side and the values correctly assignable.static Name
degloseName(String prefixedName, NamespaceSupport namespaces)
Takes a prefixed attribute name and returns anName
by looking which namespace belongs the prefix to inAppSchemaDataAccessDTO#getNamespaces()
.static PropertyDescriptor
descriptor(ComplexType type, String name)
Returns the first descriptor matching the given local name within the given type.static PropertyDescriptor
descriptor(ComplexType type, String name, String namespace)
Returns the first descriptor matching the given name + namespace within the given type.static PropertyDescriptor
descriptor(ComplexType type, Name name)
Returns the first descriptor matching the given name within the given type.static List<PropertyDescriptor>
descriptors(ComplexType type)
Returns the set of all descriptors of a complex type, including from supertypes.static List<PropertyDescriptor>
descriptors(ComplexType type, String name)
Returns the set of descriptors matching the given local name within the given type.static List<PropertyDescriptor>
descriptors(ComplexType type, Name name)
Returns the set of descriptors matching the given name.static boolean
equals(Name name, QName qName)
static PropertyDescriptor
findDescriptor(ComplexType parentType, String name)
Find a descriptor, taking in to account supertypes AND substitution groupsstatic PropertyDescriptor
findDescriptor(ComplexType parentType, Name name)
Find a descriptor, taking in to account supertypes AND substitution groupsstatic String[]
fromNames(Name... attributeNames)
Convenience method for turning an array of qualified names into a list of non qualified names.static String[]
fromTypeNames(Name... typeNames)
Convenience method for turning an array of qualified names into a list of non qualified names.static boolean
isSuperType(PropertyType type, PropertyType parent)
Determines ifparent
is a super type oftype
static boolean
isValid(Attribute attribute)
Ensures an attribute value is withing the restrictions of the AttributeDescriptor and AttributeType.static Name[]
names(ComplexType type)
Returns The name of attributes defined in the type.static Object
parse(AttributeDescriptor descriptor, Object value)
Do our best to make the provided value line up with the needs of descriptor.static Object
parse(AttributeType type, Object content)
Converts content into a format which is used to store it internally within an attribute of a specific type.static Name[]
toNames(String... names)
Creates a set of attribute names from a set of strings.static String
toPrefixedName(Name name, NamespaceSupport ns)
Converts aName
to a prefixed name (i.e. p:Foo), by looking up the right prefix in the providedNamespaceSupport
.static QName
toQName(Name featurePath)
static QName
toQName(Name featurePath, NamespaceSupport ns)
static Name
toTypeName(QName name)
static Name[]
toTypeNames(String... names)
Creates a set of type names from a set of strings.static Name
typeName(String name)
Creates a type name from a single non-qualified string.static Name
typeName(String namespace, String name)
Creates an attribute name from a single non-qualified string.static Name
typeName(Name name)
Creates a type name from another name.static void
validate(Attribute attribute)
Validates attribute.static void
validate(Attribute attribute, Object attributeContent)
Validates content against an attribute.static void
validate(ComplexAttribute attribute)
Validate complex attribute, including all properties.static void
validate(ComplexAttribute attribute, Collection<Attribute> content)
Validate content using complex attribute restrictions.static void
validate(AttributeDescriptor descriptor, Object value)
Ensure that attributeContent is a good value for descriptor.protected static void
validate(AttributeType type, Object value, boolean isSuper)
static void
validate(AttributeType type, Attribute attribute, Object attributeContent)
Validates content against attribute (using the supplied attribute type).protected static void
validate(AttributeType type, Attribute attribute, Object attributeContent, boolean isSuper)
Validates content against attribute (using the supplied attribute type).protected static void
validate(ComplexType type, ComplexAttribute attribute, Collection<Attribute> content)
Validate content using complex attribute and type restrictions.
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Field Detail
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DECLARED_NAMESPACES_MAP
public static final String DECLARED_NAMESPACES_MAP
Key for AppSchema declared namespaces on FeatureType user data Map. Value is aMap<String, String>
- See Also:
- Constant Field Values
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Method Detail
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isValid
public static boolean isValid(Attribute attribute)
Ensures an attribute value is withing the restrictions of the AttributeDescriptor and AttributeType.- Returns:
- true if the attribute value is valid.
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validate
public static void validate(Attribute attribute, Object attributeContent) throws IllegalAttributeException
Validates content against an attribute.Same result as calling:
validate(attribute.getType(), attribute, attributeContent)
- Parameters:
attribute
- The attribute.attributeContent
- Content of attribute (often attribute.getValue()- Throws:
IllegalAttributeException
- In the event that content violates any restrictions specified by the attribute.
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validate
public static void validate(AttributeType type, Attribute attribute, Object attributeContent) throws IllegalAttributeException
Validates content against attribute (using the supplied attribute type).- Parameters:
type
- AttributeType (often attribute.getType() )attribute
- Attribute being testedattributeContent
- Content of the attribute (often attribute.getValue() )- Throws:
IllegalAttributeException
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validate
protected static void validate(AttributeType type, Attribute attribute, Object attributeContent, boolean isSuper) throws IllegalAttributeException
Validates content against attribute (using the supplied attribute type).- Parameters:
type
- AttributeType (often attribute.getType() )attribute
- Attribute being testedattributeContent
- Content of the attribute (often attribute.getValue() )isSuper
- True if super type is being checked- Throws:
IllegalAttributeException
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validate
public static void validate(AttributeDescriptor descriptor, Object value) throws IllegalAttributeException
Ensure that attributeContent is a good value for descriptor.- Throws:
IllegalAttributeException
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parse
public static Object parse(AttributeDescriptor descriptor, Object value) throws IllegalArgumentException
Do our best to make the provided value line up with the needs of descriptor.This helper method uses the Coverters api to convert the provided value into the required class. If the value is null (and the attribute is not nillable) a default value will be returned.
- Parameters:
descriptor
- Attribute descriptor we need to supply a value for.value
- The provided value- Returns:
- Our best attempt to make a valid value
- Throws:
IllegalArgumentException
- if we really could not do it.
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validate
protected static void validate(AttributeType type, Object value, boolean isSuper) throws IllegalAttributeException
- Throws:
IllegalAttributeException
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assertNameAssignable
public static void assertNameAssignable(FeatureType expected, FeatureType actual)
FeatureType comparison indicating if the description provided by two FeatureTypes is similar to the point data can be exchanged. This comparison is really very focused on the name / value contract and is willing to overlook details like length restrictions.When creating compatible FeatureTypes you will find some systems have different abilities which is reflected in how well they support a given FeatureType.
As an example databases traditionally support variable length strings with a limit of 32 k; while a shapefile is limited to 256 characters. When working with data from both these data sources you will need to make adjustments based on these abilities. If true is returned data conforming to the expected FeatureType can be used with the actual FeatureType.
After assertOrderCovered returns without error the following code will work:
Specifically this says that between the two feature types data is assignable on a name by name basis.for( Property property : feature.getProperties() ){ Object value = property.getValue(); Property target = newFeature.getProperty( property.getName().getLocalPart() ); target.setValue( value ); }
- Parameters:
expected
- Expected FeatureType being used to compare againstactual
- Actual FeatureType
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assertOrderAssignable
public static void assertOrderAssignable(SimpleFeatureType expected, SimpleFeatureType actual)
SimpleFeatureType comparison indicating that data from one FeatureType can be exchanged with another - specifically ensuring that the order / value is a reasonable match with the expected number of attributes on each side and the values correctly assignable.After assertOrderCovered returns without error the following code will work:
List
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names
public static Name[] names(ComplexType type)
Returns The name of attributes defined in the type.- Parameters:
type
- The type.
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typeName
public static Name typeName(String name)
Creates a type name from a single non-qualified string.- Parameters:
name
- The name, may be null- Returns:
- The name in which getLocalPart() == name and getNamespaceURI() == null. Or null if name == null.
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typeName
public static Name typeName(String namespace, String name)
Creates an attribute name from a single non-qualified string.- Parameters:
name
- The name, may be nullnamespace
- The scope or namespace, may be null.- Returns:
- The name in which getLocalPart() == name and getNamespaceURI() == namespace.
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typeName
public static Name typeName(Name name)
Creates a type name from another name.- Parameters:
name
- The other name.
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toNames
public static Name[] toNames(String... names)
Creates a set of attribute names from a set of strings.This method returns null if names == null.
The ith name has getLocalPart() == names[i] and getNamespaceURI() == null
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toTypeNames
public static Name[] toTypeNames(String... names)
Creates a set of type names from a set of strings.This method returns null if names == null.
The ith name has getLocalPart() == names[i] and getNamespaceURI() == null
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fromNames
public static String[] fromNames(Name... attributeNames)
Convenience method for turning an array of qualified names into a list of non qualified names.
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fromTypeNames
public static String[] fromTypeNames(Name... typeNames)
Convenience method for turning an array of qualified names into a list of non qualified names.
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degloseName
public static Name degloseName(String prefixedName, NamespaceSupport namespaces) throws IllegalArgumentException
Takes a prefixed attribute name and returns anName
by looking which namespace belongs the prefix to inAppSchemaDataAccessDTO#getNamespaces()
.- Parameters:
prefixedName
- , namespaces- Throws:
IllegalArgumentException
- ifprefixedName
has no declared namespace in app-schema config file.
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toQName
public static QName toQName(Name featurePath, NamespaceSupport ns)
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toPrefixedName
public static String toPrefixedName(Name name, NamespaceSupport ns)
Converts aName
to a prefixed name (i.e. p:Foo), by looking up the right prefix in the providedNamespaceSupport
. If no prefix is found, the return value will be the same as that ofName.getLocalPart()
.- Parameters:
name
- the name to translate in prefixed formns
- namespace context, relates namespaces to prefixes
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parse
public static Object parse(AttributeType type, Object content) throws IllegalArgumentException
Converts content into a format which is used to store it internally within an attribute of a specific type.- Parameters:
content
- the object to attempt parsing of.- Throws:
IllegalArgumentException
- if parsing is attempted and is unsuccessful.
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validate
public static void validate(Attribute attribute) throws IllegalAttributeException
Validates attribute.
Same result as calling:
validate(attribute, attribute.getValue())
- Parameters:
attribute
- The attribute.- Throws:
IllegalAttributeException
- In the event that content violates any restrictions specified by the attribute.
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validate
public static void validate(ComplexAttribute attribute) throws IllegalArgumentException
Validate complex attribute, including all properties.Same result as calling:
validate(attribute,attribute.getProperties())
- Parameters:
attribute
-- Throws:
IllegalArgumentException
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validate
public static void validate(ComplexAttribute attribute, Collection<Attribute> content) throws IllegalArgumentException
Validate content using complex attribute restrictions.Same result as calling:
validate(attribute.type(), attribute)
- Parameters:
attribute
-- Throws:
IllegalArgumentException
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validate
protected static void validate(ComplexType type, ComplexAttribute attribute, Collection<Attribute> content) throws IllegalAttributeException
Validate content using complex attribute and type restrictions.- Parameters:
type
-attribute
-content
-- Throws:
IllegalAttributeException
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isSuperType
public static boolean isSuperType(PropertyType type, PropertyType parent)
Determines ifparent
is a super type oftype
- Parameters:
type
- The type in question.parent
- The possible parent type.
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descriptor
public static PropertyDescriptor descriptor(ComplexType type, String name)
Returns the first descriptor matching the given local name within the given type.- Parameters:
type
- The type, non null.name
- The name, non null.- Returns:
- The first descriptor, or null if no match.
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descriptor
public static PropertyDescriptor descriptor(ComplexType type, String name, String namespace)
Returns the first descriptor matching the given name + namespace within the given type.- Parameters:
type
- The type, non null.name
- The name, non null.namespace
- The namespace, non null.- Returns:
- The first descriptor, or null if no match.
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descriptor
public static PropertyDescriptor descriptor(ComplexType type, Name name)
Returns the first descriptor matching the given name within the given type.- Parameters:
type
- The type, non null.name
- The name, non null.- Returns:
- The first descriptor, or null if no match.
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descriptors
public static List<PropertyDescriptor> descriptors(ComplexType type, String name)
Returns the set of descriptors matching the given local name within the given type.- Parameters:
type
- The type, non null.name
- The name, non null.- Returns:
- The list of descriptors named 'name', or an empty list if none such match.
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descriptors
public static List<PropertyDescriptor> descriptors(ComplexType type, Name name)
Returns the set of descriptors matching the given name.- Parameters:
type
- The type, non null.name
- The name, non null.- Returns:
- The list of descriptors named 'name', or an empty list if none such match.
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descriptors
public static List<PropertyDescriptor> descriptors(ComplexType type)
Returns the set of all descriptors of a complex type, including from supertypes.- Parameters:
type
- The type, non null.- Returns:
- The list of all descriptors.
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findDescriptor
public static PropertyDescriptor findDescriptor(ComplexType parentType, Name name)
Find a descriptor, taking in to account supertypes AND substitution groups- Parameters:
parentType
- typename
- name of descriptor- Returns:
- descriptor, null if not found
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findDescriptor
public static PropertyDescriptor findDescriptor(ComplexType parentType, String name)
Find a descriptor, taking in to account supertypes AND substitution groups- Parameters:
parentType
- typename
- name of descriptor- Returns:
- descriptor, null if not found
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