nlevitt 747fbc0a0f Fix for HER-1954 bdb closed at crawl finish instead of teardown -- refactor crawl finish and teardown ...

* PathSharingContext.java
    start(), doStart(), stop(), doStop() - remove these overloaded methods, because the spring bug they were working around seems to be fixed, not seeing any problems with cyclical dependencies - might be this one https://jira.springsource.org/browse/SPR-7266
    doClose() - remove because superclass version seems to work fine (this method generally wasn't being called anyway, though it would be now with other changes in this checkin)
* CrawlJob.java
    refactor teardown to call close() on the ApplicationContext, which calls destroy() on any beans that implement DisposableBean - this is now the way to have beans do stuff at teardown
* CrawlController.java
    send FINISHED crawl state event after calling appCtx.stop() so that isFinished() can indicate ready-ness for teardown
* BdbModule.java
    move close() to teardown, i.e. implementation of DisposableBean.destroy(); remove shutdown hook and rely on teardown; related tweaks
* WorkQueueFrontier.java, CrawlerLoggerModule.java, BdbUriUniqFilter.java
    move close() to teardown
* CrawlMapper.java, AbstractFrontier.java, PreloadedUriPrecedencePolicy.java, FetchWhois.java, FetchHTTP.java, PersistLogProcessor.java, WriterPoolProcessor.java
    add comments about cleanup that maybe should wait until teardown
* UriUniqFilter.java
    remove incorrect(?) comment

2011-09-29 00:39:55 +00:00

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