| java.lang.Object
 org.openlaszlo.data.DataSource
All known Subclasses: org.openlaszlo.data.FileDataSource, org.openlaszlo.data.HTTPDataSource, org.openlaszlo.data.XMLRPCDataSource, org.openlaszlo.data.JavaDataSource, org.openlaszlo.data.swf.SOAPDataSource, org.openlaszlo.data.json.SOAPDataSource,
| DataSource | | abstract public class DataSource (Code) | | Base class for server side LZX data/media sources.
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| Method Summary | |
| final public void | get(String app, HttpServletRequest req, HttpServletResponse res)
Determine the datasource from the incoming request,
get the data, and write it out
to the given response. | | final public void | getAsSWF(String app, HttpServletRequest req, HttpServletResponse res, Converter converter)
Determine the datasource from the incoming request,
get the data, convert it to SWF, and write it out
to the given response. | | abstract public Data | getData(String app, HttpServletRequest req, HttpServletResponse res, long lastModifiedTime)
Get the data for this request.
the data for this request.
Parameters:
app - absolute pathnane to app file.
Parameters:
req - request in progress.
Parameters:
res - response object.
Parameters:
lastModifiedTime - this is the timestamp on the currently cacheditem; this time can be used as the datasource sees fit (or ignored) inconstructing the results. | | final public static HashMap | getQueryString(String url)
Utility function to get a hash map of query parameters from
an url string.
Parameters:
url - string containing an URL to parse query parameters. | | final public static String | getURL(HttpServletRequest req, String surl)
Get the actual URL for this request.
Parameters:
req - servlet request object.
Parameters:
url - the url string received from the client. | | public static String | getURL(HttpServletRequest req)
Get the URL query paramter for this request.
Parameters:
req - servlet request object to retrieve URL parameter. | | final public static boolean | isClientCacheable(HttpServletRequest req)
| | abstract public String | name()
Get unique name of this data source. |
| getData | | abstract public Data getData(String app, HttpServletRequest req, HttpServletResponse res, long lastModifiedTime) throws InterruptedIOException, IOException, DataSourceException(Code) | | Get the data for this request.
the data for this request.
Parameters:
app - absolute pathnane to app file.
Parameters:
req - request in progress.
Parameters:
res - response object.
Parameters:
lastModifiedTime - this is the timestamp on the currently cacheditem; this time can be used as the datasource sees fit (or ignored) inconstructing the results. If the value is -1, assume there is nocurrently cached item.
throws:
DataSourceException - if there was a problem with the data source.
throws:
IOException - if there was a problem retrieving the data.
throws:
InterrupedIOException - if there was a timeout retrieving the data. |
| getQueryString | | final public static HashMap getQueryString(String url)(Code) | | Utility function to get a hash map of query parameters from
an url string.
Parameters:
url - string containing an URL to parse query parameters. hash map of query parameters, or an empty hash map if no queryparameters exist. |
| getURL | | final public static String getURL(HttpServletRequest req, String surl) throws MalformedURLException(Code) | | Get the actual URL for this request.
Parameters:
req - servlet request object.
Parameters:
url - the url string received from the client. Can contain"@WEBAPP@" string. the 'URL' for the request. |
| isClientCacheable | | final public static boolean isClientCacheable(HttpServletRequest req)(Code) | | Return true if the request is marked cacheable on the client
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| name | | abstract public String name()(Code) | | Get unique name of this data source.
unique name of this data source. |
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