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java.lang.Object org.apache.commons.pipeline.stage.BaseStage org.apache.commons.pipeline.stage.HttpFileDownloadStage
public class HttpFileDownloadStage
This Stage
provides the
functionality needed to retrieve data from an HTTP URL. Multipart responses
are not yet supported.
Field Summary |
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Fields inherited from class org.apache.commons.pipeline.stage.BaseStage |
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context |
Constructor Summary | |
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HttpFileDownloadStage()
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HttpFileDownloadStage(String workDir)
Creates a new HttpFileDownloadStage which will download files to the specified work directory. |
Method Summary | |
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String |
getWorkDir()
Returns the name of the file download directory. |
URL |
handleRedirects(URL url)
Follows redirects from the specified URL and recursively returns the destination URL. |
void |
process(Object obj)
Removes a java.net.URL (an HTTP URL) or string representing a URL from the input queue, and then retrieves the data at that URL and stores it in a temporary file. |
void |
setWorkDir(String workDir)
Sets the working directory for the file download. |
Methods inherited from class org.apache.commons.pipeline.stage.BaseStage |
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emit, emit, init, postprocess, preprocess, release |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public HttpFileDownloadStage()
public HttpFileDownloadStage(String workDir)
workDir
- the path to which files will be downloaded.Method Detail |
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public void process(Object obj) throws StageException
setWorkDir()
, or to the system default
temporary directory if no work directory is set.
process
in interface Stage
process
in class BaseStage
obj
- The URL from which to download data.
IllegalArgumentException
- if the parameter obj is not a string or
an instance of URL
.
StageException
- if there is an error retrieving data from the
URL specified.public void setWorkDir(String workDir)
public String getWorkDir()
public URL handleRedirects(URL url) throws IOException, MalformedURLException
IOException
MalformedURLException
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