org.apache.nutch.searcher
Class FetchedSegments

java.lang.Object
  org.apache.nutch.searcher.FetchedSegments

All Implemented Interfaces:

Closeable, VersionedProtocol, HitContent, HitSummarizer, RPCSegmentBean, SegmentBean

public class FetchedSegments
extends Object
implements RPCSegmentBean

Implements HitSummarizer and HitContent for a set of fetched segments.

Field Summary

static long

VERSION

Constructor Summary

FetchedSegments(Configuration conf, Path segmentsDir)
Construct given a directory containing fetcher output.

Method Summary

void	close()
byte[]	getContent(HitDetails details) Returns the content of a hit document.
long	getFetchDate(HitDetails details) Returns the fetch date of a hit document.
ParseData	getParseData(HitDetails details) Returns the ParseData of a hit document.
ParseText	getParseText(HitDetails details) Returns the ParseText of a hit document.
long	getProtocolVersion(String protocol, long clientVersion)
String[]	getSegmentNames()
Summary[]	getSummary(HitDetails[] details, Query query) Returns summaries for a set of details.
Summary	getSummary(HitDetails details, Query query) Returns a summary for the given hit details.

Methods inherited from class java.lang.Object

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

Field Detail

VERSION

public static final long VERSION

See Also:

Constant Field Values

Constructor Detail

FetchedSegments

public FetchedSegments(Configuration conf,
                       Path segmentsDir)
                throws IOException

Construct given a directory containing fetcher output.

Throws:

IOException

Method Detail

getSegmentNames

public String[] getSegmentNames()

Specified by:

getSegmentNames in interface SegmentBean

getContent

public byte[] getContent(HitDetails details)
                  throws IOException

Description copied from interface: HitContent

Returns the content of a hit document.

Specified by:

getContent in interface HitContent

Throws:

IOException

getParseData

public ParseData getParseData(HitDetails details)
                       throws IOException

Description copied from interface: HitContent

Returns the ParseData of a hit document.

Specified by:

getParseData in interface HitContent

Throws:

IOException

getFetchDate

public long getFetchDate(HitDetails details)
                  throws IOException

Description copied from interface: HitContent

Returns the fetch date of a hit document.

Specified by:

getFetchDate in interface HitContent

Throws:

IOException

getParseText

public ParseText getParseText(HitDetails details)
                       throws IOException

Description copied from interface: HitContent

Returns the ParseText of a hit document.

Specified by:

getParseText in interface HitContent

Throws:

IOException

getSummary

public Summary getSummary(HitDetails details,
                          Query query)
                   throws IOException

Description copied from interface: HitSummarizer

Returns a summary for the given hit details.

Specified by:

getSummary in interface HitSummarizer

Parameters:

details - the details of the hit to be summarized

query - indicates what should be higlighted in the summary text

Throws:

IOException

getProtocolVersion

public long getProtocolVersion(String protocol,
                               long clientVersion)
                        throws IOException

Specified by:

getProtocolVersion in interface VersionedProtocol

Throws:

IOException

getSummary

public Summary[] getSummary(HitDetails[] details,
                            Query query)
                     throws IOException

Description copied from interface: HitSummarizer

Returns summaries for a set of details. Hook for parallel IPC calls.

Specified by:

getSummary in interface HitSummarizer

Parameters:

details - the details of hits to be summarized

query - indicates what should be higlighted in the summary text

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Throws:

IOException