org.niocchi.core
Class DiskResource

java.lang.Object
  org.niocchi.core.Resource
      org.niocchi.core.DiskResource

Direct Known Subclasses:

GenericResource

public class DiskResource
extends Resource

A resource that saves its content (the response body) into a temporary file. The method save(path) is used to move the content from this tmp file to a specific path. This method handles the uncompressing if needed and delete the tmp file.

If the content can be discarded after being processed, the programmer can access the tmp file directly with getTmpFileAbsolutePath(). Note that the content in the tmp file may be compressed (compression is enabled by default, check Crawler.setAllowCompression(boolean)) and if save() is not called, the tmp file needs to be explicitly deleted.

Field Summary

Fields inherited from class org.niocchi.core.Resource

UNKNOWN_HTTP_STATUS

Constructor Summary

DiskResource()
Resource constructor.

Method Summary

java.lang.String	getTmpFileAbsolutePath() Returns the absolute path of the tmp file that holds the body if some content has been crawled or null otherwise.
void	save(java.lang.String path_) If the body is compressed (gzipped, deflated or zipped) it is uncompressed from the tmp file into the target file and the tmp file is deleted.

Methods inherited from class org.niocchi.core.Resource

getBodyLength, getContentEncoding, getContentMimeSubType, getContentMimeType, getContentType, getHeader, getHeaderNames, getHTTPStatus, getRawDataSize, headersToString, isCompressed, isValid

Methods inherited from class java.lang.Object

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

Constructor Detail

DiskResource

public DiskResource()

Resource constructor.

Method Detail

getTmpFileAbsolutePath

public java.lang.String getTmpFileAbsolutePath()

Returns the absolute path of the tmp file that holds the body if some content has been crawled or null otherwise.

Returns:

the absolute path or null.

save

public void save(java.lang.String path_)
          throws java.io.FileNotFoundException,
                 java.io.IOException

If the body is compressed (gzipped, deflated or zipped) it is uncompressed from the tmp file into the target file and the tmp file is deleted. If the body is not compressed, the tmp file is renamed as the target file.

Specified by:

save in class Resource

Parameters:

path_ - The path of the target file;

Throws:

java.io.FileNotFoundException

java.io.IOException