Class DigesterDefinitionsReader
- All Implemented Interfaces:
DefinitionsReader
Definition objects from
an XML InputStream using Digester.
This DefinitionsReader implementation expects the source to be
passed as an InputStream. It parses XML data from the source
and builds a Map of Definition objects.
The Digester object can be configured by passing in initialization
parameters. Currently the only parameter that is supported is the
validating parameter. This value is set to false
by default. To enable DTD validation for XML Definition files, give the init
method a parameter with a key of
org.apache.tiles.definition.digester.DigesterDefinitionsReader.PARSER_VALIDATE
and a value of "true".
The Definition objects are stored internally in a Map. The Map is stored as
an instance variable rather than a local variable in the read
method. This means that instances of this class are not
thread-safe and access by multiple threads must be synchronized.
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Field Summary
FieldsModifier and TypeFieldDescriptionprotected static final StringThe handler to create definitions.protected Map<String,Definition> Stores Definition objects.protected final org.apache.commons.digester3.DigesterDigesterobject used to read Definition data from the source.protected static final StringThe handler to create list attributes.protected static final StringThe handler to create attributes. -
Constructor Summary
ConstructorsConstructorDescriptionCreates a new instance of DigesterDefinitionsReader. -
Method Summary
Modifier and TypeMethodDescriptionvoidaddDefinition(Definition definition) Adds a newDefinitionto the internal Map or replaces an existing one.protected String[]Returns the registrations for local DTDs.protected voidinitSyntax(org.apache.commons.digester3.Digester digester) Initialised the syntax for reading XML files containing Tiles definitions.Readsobjects from a source.DefinitionvoidsetValidating(boolean validating) Sets the validation of XML files.
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Field Details
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DEFINITION_HANDLER_CLASS
The handler to create definitions.- Since:
- 2.1.0
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PUT_ATTRIBUTE_HANDLER_CLASS
The handler to create attributes.- Since:
- 2.1.0
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LIST_HANDLER_CLASS
The handler to create list attributes.- Since:
- 2.1.0
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digester
protected final org.apache.commons.digester3.Digester digesterDigesterobject used to read Definition data from the source. -
definitions
Stores Definition objects.
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Constructor Details
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DigesterDefinitionsReader
public DigesterDefinitionsReader()Creates a new instance of DigesterDefinitionsReader.
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Method Details
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setValidating
public void setValidating(boolean validating) Sets the validation of XML files.- Parameters:
validating-truemeans that XML validation is turned on.falseotherwise.- Since:
- 3.3.0
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read
Readsobjects from a source. Implementations should publish what type of source object is expected.Definition- Specified by:
readin interfaceDefinitionsReader- Parameters:
source- TheInputStreamsource from which definitions will be read.- Returns:
- a Map of
Definitionobjects read from the source. - Throws:
DefinitionsFactoryException- If the source is invalid or an error occurs when reading definitions.
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initSyntax
protected void initSyntax(org.apache.commons.digester3.Digester digester) Initialised the syntax for reading XML files containing Tiles definitions.- Parameters:
digester- The digester to initialize.
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addDefinition
Adds a newDefinitionto the internal Map or replaces an existing one.- Parameters:
definition- The Definition object to be added.
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getRegistrations
Returns the registrations for local DTDs.- Returns:
- An array containing the locations for registrations of local DTDs.
- Since:
- 2.1.0
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