public abstract class HTMLParser extends Object
Modifier and Type | Field and Description |
---|---|
protected static String |
ATT_BACKGROUND |
protected static String |
ATT_HREF |
protected static String |
ATT_IS_IMAGE |
protected static String |
ATT_REL |
protected static String |
ATT_SRC |
protected static String |
ATT_STYLE |
protected static String |
ATT_TYPE |
static String |
DEFAULT_PARSER |
static String |
PARSER_CLASSNAME |
protected static String |
STYLESHEET |
protected static String |
TAG_APPLET |
protected static String |
TAG_BASE |
protected static String |
TAG_BGSOUND |
protected static String |
TAG_EMBED |
protected static String |
TAG_FRAME |
protected static String |
TAG_IFRAME |
protected static String |
TAG_IMAGE |
protected static String |
TAG_INPUT |
protected static String |
TAG_LINK |
protected static String |
TAG_SCRIPT |
Modifier | Constructor and Description |
---|---|
protected |
HTMLParser()
Protected constructor to prevent instantiation except from within
subclasses.
|
Modifier and Type | Method and Description |
---|---|
Iterator<URL> |
getEmbeddedResourceURLs(byte[] html,
URL baseUrl)
Get the URLs for all the resources that a browser would automatically
download following the download of the HTML content, that is: images,
stylesheets, javascript files, applets, etc...
|
Iterator<URL> |
getEmbeddedResourceURLs(byte[] html,
URL baseUrl,
Collection<URLString> coll)
Get the URLs for all the resources that a browser would automatically
download following the download of the HTML content, that is: images,
stylesheets, javascript files, applets, etc...
|
abstract Iterator<URL> |
getEmbeddedResourceURLs(byte[] html,
URL baseUrl,
URLCollection coll)
Get the URLs for all the resources that a browser would automatically
download following the download of the HTML content, that is: images,
stylesheets, javascript files, applets, etc...
|
static HTMLParser |
getParser() |
static HTMLParser |
getParser(String htmlParserClassName) |
protected boolean |
isReusable()
Parsers should over-ride this method if the parser class is re-usable, in
which case the class will be cached for the next getParser() call.
|
protected static final String ATT_BACKGROUND
protected static final String ATT_HREF
protected static final String ATT_REL
protected static final String ATT_SRC
protected static final String ATT_STYLE
protected static final String ATT_TYPE
protected static final String ATT_IS_IMAGE
protected static final String TAG_APPLET
protected static final String TAG_BASE
protected static final String TAG_BGSOUND
protected static final String TAG_EMBED
protected static final String TAG_FRAME
protected static final String TAG_IFRAME
protected static final String TAG_IMAGE
protected static final String TAG_INPUT
protected static final String TAG_LINK
protected static final String TAG_SCRIPT
protected static final String STYLESHEET
public static final String PARSER_CLASSNAME
public static final String DEFAULT_PARSER
protected HTMLParser()
public static final HTMLParser getParser()
public static final HTMLParser getParser(String htmlParserClassName)
public Iterator<URL> getEmbeddedResourceURLs(byte[] html, URL baseUrl) throws HTMLParseException
URLs should not appear twice in the returned iterator.
Malformed URLs can be reported to the caller by having the Iterator return the corresponding RL String. Overall problems parsing the html should be reported by throwing an HTMLParseException.
html
- HTML codebaseUrl
- Base URL from which the HTML code was obtainedHTMLParseException
public abstract Iterator<URL> getEmbeddedResourceURLs(byte[] html, URL baseUrl, URLCollection coll) throws HTMLParseException
All URLs should be added to the Collection.
Malformed URLs can be reported to the caller by having the Iterator return the corresponding RL String. Overall problems parsing the html should be reported by throwing an HTMLParseException. N.B. The Iterator returns URLs, but the Collection will contain objects of class URLString.
html
- HTML codebaseUrl
- Base URL from which the HTML code was obtainedcoll
- URLCollectionHTMLParseException
public Iterator<URL> getEmbeddedResourceURLs(byte[] html, URL baseUrl, Collection<URLString> coll) throws HTMLParseException
html
- HTML codebaseUrl
- Base URL from which the HTML code was obtainedcoll
- Collection - will contain URLString objects, not URLsHTMLParseException
protected boolean isReusable()
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