grails.util
[Java] Class GrailsNameUtils

java.lang.Object
  grails.util.GrailsNameUtils

public class GrailsNameUtils
extends java.lang.Object

Utility methods for converting between different name types, for example from class names -> property names and vice-versa. The key aspect of this class is that it has no dependencies outside the JDK!

getClassName

public static java.lang.String getClassName(java.lang.String logicalName, java.lang.String trailingName)

Returns the class name for the given logical name and trailing name. For example "person" and "Controller" would evaluate to "PersonController"

Parameters:

logicalName - The logical name

trailingName - The trailing name

Returns:

The class name

getClassName

public static java.lang.String getClassName(java.lang.String logicalName)

Return the class name for the given logical name. For example "person" would evaluate to "Person"

Parameters:

logicalName - The logical name

Returns:

The class name

getClassNameRepresentation

public static java.lang.String getClassNameRepresentation(java.lang.String name)

Returns the class name representation of the given name

Parameters:

name - The name to convert

Returns:

The property name representation

getGetterName

public static java.lang.String getGetterName(java.lang.String propertyName)

Calculate the name for a getter method to retrieve the specified property

Parameters:

propertyName

Returns:

The name for the getter method for this property, if it were to exist, i.e. getConstraints

getLogicalName

public static java.lang.String getLogicalName(java.lang.Class clazz, java.lang.String trailingName)

Retrieves the logical class name of a Grails artifact given the Grails class and a specified trailing name.

Parameters:

clazz - The class

trailingName - The trailing name such as "Controller" or "TagLib"

Returns:

The logical class name

getLogicalName

public static java.lang.String getLogicalName(java.lang.String name, java.lang.String trailingName)

Retrieves the logical name of the class without the trailing name

Parameters:

name - The name of the class

trailingName - The trailing name

Returns:

The logical name

getLogicalPropertyName

public static java.lang.String getLogicalPropertyName(java.lang.String className, java.lang.String trailingName)

getNameFromScript

public static java.lang.String getNameFromScript(java.lang.String scriptName)

Calculates the class name from a script name in the form my-funk-grails-script.

Parameters:

scriptName - The script name

Returns:

A class name

getNaturalName

public static java.lang.String getNaturalName(java.lang.String name)

Converts a property name into its natural language equivalent eg ('firstName' becomes 'First Name')

Parameters:

name - The property name to convert

Returns:

The converted property name

getPluginName

public static java.lang.String getPluginName(java.lang.String descriptorName)

Returns the name of a plugin given the name of the *GrailsPlugin.groovy descriptor file. For example, "DbUtilsGrailsPlugin.groovy" gives "db-utils".

throws:

IllegalArgumentException if the given descriptor name is not valid, i.e. if it doesn't end with "GrailsPlugin.groovy".

Parameters:

descriptorName - The simple name of the plugin descriptor.

Returns:

The plugin name for the descriptor, or null if descriptorName is null, or an empty string if descriptorName is an empty string.

getPropertyName

public static java.lang.String getPropertyName(java.lang.String name)

Shorter version of getPropertyNameRepresentation.

Parameters:

name - The name to convert

Returns:

The property name version

getPropertyName

public static java.lang.String getPropertyName(java.lang.Class clazz)

Shorter version of getPropertyNameRepresentation.

Parameters:

clazz - The clazz to convert

Returns:

The property name version

getPropertyNameForLowerCaseHyphenSeparatedName

public static java.lang.String getPropertyNameForLowerCaseHyphenSeparatedName(java.lang.String name)

Converts foo-bar into fooBar.

Parameters:

name - The lower case hyphen separated name

Returns:

The property name equivalent

getPropertyNameRepresentation

public static java.lang.String getPropertyNameRepresentation(java.lang.Class targetClass)

Returns the property name equivalent for the specified class.

Parameters:

targetClass - The class to get the property name for

Returns:

A property name reperesentation of the class name (eg. MyClass becomes myClass)

getPropertyNameRepresentation

public static java.lang.String getPropertyNameRepresentation(java.lang.String name)

Returns the property name representation of the given name.

Parameters:

name - The name to convert

Returns:

The property name representation

getScriptName

public static java.lang.String getScriptName(java.lang.Class clazz)

Retrieves the script name representation of the supplied class. For example MyFunkyGrailsScript would be my-funky-grails-script.

Parameters:

clazz - The class to convert

Returns:

The script name representation

getScriptName

public static java.lang.String getScriptName(java.lang.String name)

Retrieves the script name representation of the given class name. For example MyFunkyGrailsScript would be my-funky-grails-script.

Parameters:

name - The class name to convert.

Returns:

The script name representation.

getSetterName

public static java.lang.String getSetterName(java.lang.String propertyName)

Retrieves the name of a setter for the specified property name

Parameters:

propertyName - The property name

Returns:

The setter equivalent

getShortName

public static java.lang.String getShortName(java.lang.Class targetClass)

Returns the class name without the package prefix.

Parameters:

targetClass - The class to get a short name for

Returns:

The short name of the class

getShortName

public static java.lang.String getShortName(java.lang.String className)

Returns the class name without the package prefix.

Parameters:

className - The class name to get a short name for

Returns:

The short name of the class

isBlank

public static boolean isBlank(java.lang.String str)

Determines whether a given string is null, empty, or only contains whitespace. If it contains anything other than whitespace then the string is not considered to be blank and the method returns false.

We could use Commons Lang for this, but we don't want GrailsNameUtils to have a dependency on any external library to minimise the number of dependencies required to bootstrap Grails.

Parameters:

str - The string to test.

Returns:

true if the string is null, or blank.

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