com.gmail.thejcwk.semantics.phrases
Class PhraseExtractor

java.lang.Object
  com.gmail.thejcwk.semantics.phrases.PhraseExtractor

public class PhraseExtractor
extends java.lang.Object

Extracts phrases from an XML file with a specified structure. All phrases are extracted at once and are stored in an ArrayList.

Version:

0.1

Author:

Jan Kroeze

Nested Class Summary

class

PhraseExtractor.PropertyLevel Describes at what level in the XML file we find various properties of the Phrase class.

Field Summary

java.lang.String	EMPTY_PHRASE_MARKER The symbol that denotes an empty phrase.
int	MAX_PHRASES_PER_CLAUSE The maximum phrases that are found organised under a clause.
java.lang.String	PHRASE_TAG_PREFIX The string that precedes a number from 1..MAX_PHRASES_PER_CLAUSE to identify a phrase.

Constructor Summary

PhraseExtractor(java.io.File file)
Construct a new PhraseExtractor.

Method Summary

java.util.ArrayList<Phrase>

getPhrases() Parse the given file and return the extracted Phrases.

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_PHRASE_MARKER

public final java.lang.String EMPTY_PHRASE_MARKER

The symbol that denotes an empty phrase.

See Also:

Constant Field Values

MAX_PHRASES_PER_CLAUSE

public final int MAX_PHRASES_PER_CLAUSE

The maximum phrases that are found organised under a clause.

See Also:

Constant Field Values

PHRASE_TAG_PREFIX

public final java.lang.String PHRASE_TAG_PREFIX

The string that precedes a number from 1..MAX_PHRASES_PER_CLAUSE to identify a phrase.

See Also:

Constant Field Values

Constructor Detail

PhraseExtractor

public PhraseExtractor(java.io.File file)
                throws java.lang.IllegalArgumentException

Construct a new PhraseExtractor.

Parameters:

file - The name of an XML file that contains the phrases to be extracted. (Precondition: fileName must be a file name denoting a valid XML file.)

Throws:

java.lang.IllegalArgumentException - If an invalid file name is given.

Method Detail

getPhrases

public java.util.ArrayList<Phrase> getPhrases()
                                       throws javax.xml.parsers.ParserConfigurationException,
                                              org.xml.sax.SAXException,
                                              java.io.IOException

Parse the given file and return the extracted Phrases.

Returns:

An object of type ArrayList

Throws:

javax.xml.parsers.ParserConfigurationException

org.xml.sax.SAXException

java.io.IOException