Package org.apache.activemq.console.filter

Class RegExQueryFilter

java.lang.Object

org.apache.activemq.console.filter.AbstractQueryFilter

org.apache.activemq.console.filter.RegExQueryFilter

All Implemented Interfaces:

QueryFilter

Direct Known Subclasses:

MBeansRegExQueryFilter

public abstract class RegExQueryFilter
extends AbstractQueryFilter

Field Summary

Fields

Modifier and Type	Field	Description
static final String	REGEX_PREFIX

Fields inherited from class org.apache.activemq.console.filter.AbstractQueryFilter

next

Fields inherited from interface org.apache.activemq.console.filter.QueryFilter

QUERY_DELIMETER

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	RegExQueryFilter(QueryFilter next)	Creates a regular expression query that is able to match an object using key-value pattern regex filtering

Method Summary

Modifier and Type	Method	Description
protected Pattern	compileQuery(String query)	Compiles the regex query to a pattern.
protected List	filterCollectionUsingRegEx(Map regex, List data)	Filter the specified colleciton using the regex patterns extracted.
protected boolean	isRegularExpression(String query)	Checks if a given string is a regular expression query.
protected abstract boolean	matches(Object data, Map regex)	Determines how the object is to be matched to the regex map.
List	query(List queries)	Separates the regular expressions queries from the usual queries.

Methods inherited from class org.apache.activemq.console.filter.AbstractQueryFilter

query

Methods inherited from class java.lang.Object

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

Field Details

REGEX_PREFIX

public static final String REGEX_PREFIX

See Also:

• Constant Field Values

Constructor Details

RegExQueryFilter

protected RegExQueryFilter(QueryFilter next)

Creates a regular expression query that is able to match an object using key-value pattern regex filtering

Parameters:

next -

Method Details

query

public List query(List queries)
           throws Exception

Separates the regular expressions queries from the usual queries. A query is a regex query, if it is key-value pair with the format =, and value is a pattern that satisfies the isRegularExpression method.

Parameters:

queries - - list of queries

Returns:

filtered objects that matches the regex query

Throws:

Exception

isRegularExpression

protected boolean isRegularExpression(String query)

Checks if a given string is a regular expression query. Currently, a pattern is a regex query, if it starts with the RegExQueryFilter.REGEX_PREFIX.

Parameters:

query -

Returns:

boolean result of query check

compileQuery

protected Pattern compileQuery(String query)

Compiles the regex query to a pattern.

Parameters:

query - - query string to compile

Returns:

regex pattern

filterCollectionUsingRegEx

protected List filterCollectionUsingRegEx(Map regex,
 List data)
                                   throws Exception

Filter the specified colleciton using the regex patterns extracted.

Parameters:

regex - - regex map

data - - list of objects to filter

Returns:

filtered list of objects that matches the regex map

Throws:

Exception

matches

protected abstract boolean matches(Object data,
 Map regex)
                            throws Exception

Determines how the object is to be matched to the regex map.

Parameters:

data - - object to match

regex - - regex map

Returns:

true, if the object matches the regex map, false otherwise

Throws:

Exception