Package com.digitalpebble.stormcrawler.parse

Class JSoupFilters

java.lang.Object

com.digitalpebble.stormcrawler.util.AbstractConfigurable

com.digitalpebble.stormcrawler.parse.JSoupFilters

All Implemented Interfaces:

JSONResource, JSoupFilter, Configurable

public class JSoupFilters
extends AbstractConfigurable
implements JSoupFilter, JSONResource

Wrapper for the JSoupFilters defined in a JSON configuration

Field Summary

Fields

Modifier and Type	Field	Description
static JSoupFilters	emptyParseFilter

Constructor Summary

Constructors

Constructor	Description
JSoupFilters(Map<String,Object> stormConf, String configFile)	loads the filters from a JSON configuration file

Method Summary

Modifier and Type	Method	Description
void	configure(@NotNull Map<String,Object> stormConf, @NotNull com.fasterxml.jackson.databind.JsonNode filtersConf)	Called when this filter is being initialized
void	filter(@NotNull String url, byte[] content, @NotNull org.jsoup.nodes.Document doc, @NotNull ParseResult parse)	Called when parsing a specific page
static JSoupFilters	fromConf(Map<String,Object> stormConf)	Loads and configure the JSoupFilters based on the storm config if there is one otherwise returns an empty JSoupFilter.
String	getResourceFile()
void	loadJSONResources(InputStream inputStream)	Load the resources from an input stream
static void	main(String[] args)	Used for quick testing + debugging

Methods inherited from class com.digitalpebble.stormcrawler.util.AbstractConfigurable

configure, getName

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.digitalpebble.stormcrawler.util.Configurable

configure, getName

Methods inherited from interface com.digitalpebble.stormcrawler.JSONResource

loadJSONResources

Field Detail

emptyParseFilter

public static final JSoupFilters emptyParseFilter

Constructor Detail

JSoupFilters

public JSoupFilters(Map<String,Object> stormConf,
                    String configFile)
             throws IOException

loads the filters from a JSON configuration file

Throws:

IOException

Method Detail

fromConf

public static JSoupFilters fromConf(Map<String,Object> stormConf)

Loads and configure the JSoupFilters based on the storm config if there is one otherwise returns an empty JSoupFilter.

loadJSONResources

public void loadJSONResources(InputStream inputStream)
                       throws IOException

Description copied from interface: JSONResource

Load the resources from an input stream

Specified by:

loadJSONResources in interface JSONResource

Throws:

com.fasterxml.jackson.core.JsonParseException

com.fasterxml.jackson.databind.JsonMappingException

IOException

getResourceFile

public String getResourceFile()

Specified by:

getResourceFile in interface JSONResource

Returns:

filename of the JSON resource

configure

public void configure(@NotNull
                      @NotNull Map<String,Object> stormConf,
                      @NotNull
                      @NotNull com.fasterxml.jackson.databind.JsonNode filtersConf)

Description copied from interface: Configurable

Called when this filter is being initialized

Specified by:

configure in interface Configurable

Parameters:

stormConf - The Storm configuration used for the configurable

filtersConf - the filter specific configuration. Never null

filter

public void filter(@NotNull
                   @NotNull String url,
                   byte[] content,
                   @NotNull
                   @NotNull org.jsoup.nodes.Document doc,
                   @NotNull
                   @NotNull ParseResult parse)

Description copied from interface: JSoupFilter

Called when parsing a specific page

Specified by:

filter in interface JSoupFilter

Parameters:

url - the URL of the page being parsed

content - the content being parsed

doc - document produced by JSoup's parsingF

parse - the metadata to be updated with the resulting of the parsing

main

public static void main(String[] args)
                 throws IOException,
                        org.apache.commons.cli.ParseException

Used for quick testing + debugging

Throws:

IOException

org.apache.commons.cli.ParseException