org.drools.smf
Class SemanticsReader

java.lang.Object
  org.drools.smf.SemanticsReader

public class SemanticsReader
extends java.lang.Object

Loader of SemanticModule s from a set of properties.

The required properties are:

• module.uri=uri: To denote the URI of the module.
• tagname=classname. For each semantic component to associate a tag with the component.

Instances of SemanticsReader are re-entrant and thread-safe. The singleton may be used simultaneously by multiple threads.

Constructor Summary

SemanticsReader()
Construct.

Method Summary

static SemanticsReader	getInstance() Retrieve the singleton instance.
protected java.lang.String	parseName(java.lang.String key)
protected java.lang.String	parseType(java.lang.String key)
SemanticModule	read(java.io.InputStream in, java.lang.ClassLoader cl) Read a semantic module descriptor from an InputStream.
SemanticModule	read(java.net.URL url)
SemanticModule	read(java.net.URL url, java.lang.ClassLoader cl) Read a semantic module descriptor from a URL.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SemanticsReader

public SemanticsReader()

Construct.

Method Detail

getInstance

public static SemanticsReader getInstance()

Retrieve the singleton instance.

Returns:

The singleton instance.

read

public SemanticModule read(java.net.URL url)
                    throws java.io.IOException,
                           SemanticsReaderException

Throws:

java.io.IOException

SemanticsReaderException

read

public SemanticModule read(java.net.URL url,
                           java.lang.ClassLoader cl)
                    throws java.io.IOException,
                           SemanticsReaderException

Read a semantic module descriptor from a URL.

Parameters:

url - The descriptor URL.

Returns:

The loaded semantic module.

Throws:

java.io.IOException

SemanticsReaderException

read

public SemanticModule read(java.io.InputStream in,
                           java.lang.ClassLoader cl)
                    throws java.io.IOException,
                           SemanticsReaderException

Read a semantic module descriptor from an InputStream.

Parameters:

in - The descriptor input stream.

Returns:

The loaded semantic module.

Throws:

java.io.IOException - If an error occurs while loading the module.

SemanticsReaderException - If an error occurs while loading the module.

parseType

protected java.lang.String parseType(java.lang.String key)

parseName

protected java.lang.String parseName(java.lang.String key)