org.archive.wayback.requestparser

Class CompositeRequestParser

java.lang.Object

org.archive.wayback.requestparser.BaseRequestParser

org.archive.wayback.requestparser.CompositeRequestParser

All Implemented Interfaces:

RequestParser

Direct Known Subclasses:

ArchivalUrlRequestParser, DomainPrefixCompositeRequestParser, ProxyArchivalRequestParser, ProxyRequestParser

public abstract class CompositeRequestParser
extends BaseRequestParser

Abstract RequestParser implementation. Subclasses must implement the getRequestParsers() method. This implementation provides a parse() implementation, which allows each RequestParser returned by the getRequestParsers() method an attempt at parsing the incoming request.

Version:

$Date$, $Revision$

Author:

brad

Field Summary

Fields inherited from class org.archive.wayback.requestparser.BaseRequestParser

DEFAULT_MAX_RECORDS, QUERY_BASE, REPLAY_BASE, XQUERY_BASE

Constructor Summary

Constructors

Constructor and Description
CompositeRequestParser()

Method Summary

Modifier and Type	Method and Description
protected abstract RequestParser[]	getRequestParsers()
void	init()
WaybackRequest	parse(javax.servlet.http.HttpServletRequest httpRequest, AccessPoint wbContext) attempt to transform an incoming HttpServletRequest into a WaybackRequest object. returns null if there is missing information.

Methods inherited from class org.archive.wayback.requestparser.BaseRequestParser

getEarliestTimestamp, getLatestTimestamp, getMaxRecords, setEarliestTimestamp, setLatestTimestamp, setMaxRecords

Methods inherited from class java.lang.Object

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

Constructor Detail

CompositeRequestParser

public CompositeRequestParser()

Method Detail

init

public void init()

getRequestParsers

protected abstract RequestParser[] getRequestParsers()

parse

public WaybackRequest parse(javax.servlet.http.HttpServletRequest httpRequest,
                            AccessPoint wbContext)
                     throws BadQueryException,
                            BetterRequestException

Description copied from interface: RequestParser

attempt to transform an incoming HttpServletRequest into a WaybackRequest object. returns null if there is missing information.

Specified by:

parse in interface RequestParser

Specified by:

parse in class BaseRequestParser

Parameters:

httpRequest - ServletHttpRequest being handled

wbContext - AccessPoint which is attempting to parse the request

Returns:

populated WaybackRequest object if successful, null otherwise.

Throws:

BadQueryException - if the request could match this AccessPoint, but is malformed: invalid datespec, URL, or flags

BetterRequestException - if the request should be redirected to provide better user feedback (corrected URL/date in address bar)