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Merge branch 'feature/parsers-are-sources' into develop

This commit is contained in:
Jip J. Dekker 2014-04-23 16:00:09 +02:00
commit b6541a1aa7
5 changed files with 8 additions and 8 deletions

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@ -1,4 +1,4 @@
from parser import Parser
from source import Source
from scrapy import log
from scrapy.http import Request
from scrapy.selector import Selector
@ -8,7 +8,7 @@ import re
# [TODO] - Maybe clean up usage of '.extract()[0]', because of possible IndexError exception.
class ChemSpider(Parser):
class ChemSpider(Source):
"""ChemSpider scraper for synonyms and properties
This parser will manage searching for chemicals through the
@ -18,7 +18,7 @@ class ChemSpider(Parser):
"""
def __init__(self):
pass
Source.__init__(self)
website = 'http://www.chemspider.com/*'

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@ -2,7 +2,7 @@ from scrapy import log
# from scrapy.http import Request
class Parser:
class Source:
website = "http://something/*" # Regex of URI's the source is able to parse
_spider = None

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@ -15,7 +15,7 @@ class FourmiSpider(Spider):
def parse(self, reponse):
for parser in self.__parsers:
if re.match(parser.website, reponse.url):
log.msg("Url: " + reponse.url + " -> Parser: " + parser.website, level=log.DEBUG)
log.msg("Url: " + reponse.url + " -> Source: " + parser.website, level=log.DEBUG)
return parser.parse(reponse)
return None

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@ -1,13 +1,13 @@
import inspect
import os
import re
from FourmiCrawler.parsers.parser import Parser
from FourmiCrawler.sources.source import Source
class SourceLoader:
sources = []
def __init__(self, rel_dir="FourmiCrawler/parsers"):
def __init__(self, rel_dir="FourmiCrawler/sources"):
path = os.path.dirname(os.path.abspath(__file__))
path += "/" + rel_dir
known_parser = set()
@ -16,7 +16,7 @@ class SourceLoader:
mod = __import__('.'.join([rel_dir.replace("/", "."), py]), fromlist=[py])
classes = [getattr(mod, x) for x in dir(mod) if inspect.isclass(getattr(mod, x))]
for cls in classes:
if issubclass(cls, Parser) and cls not in known_parser:
if issubclass(cls, Source) and cls not in known_parser:
self.sources.append(cls()) # [review] - Would we ever need arguments for the parsers?
known_parser.add(cls)