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java.lang.Object javax.servlet.GenericServlet javax.servlet.http.HttpServlet com.yworks.yfiles.server.graphml.servlets.DownloadServlet
Simple download servlet that takes the request from a client and creates a file download for it.
Constructor Summary | |
DownloadServlet()
Calls the DownloadServlet(String) constructor using
AbstractGraphRoundtripSupport.PARAM_GRAPH
as the parameter name. |
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DownloadServlet(java.lang.String graphParameter)
Creates a new instance using the provided parameter to get the graphml string from the HttpServletRequest later in getGraphInputStream(javax.servlet.http.HttpServletRequest)
from. |
Method Summary | |
protected void |
doGet(HttpServletRequest httpServletRequest,
HttpServletResponse httpServletResponse)
|
protected void |
doPost(HttpServletRequest httpServletRequest,
HttpServletResponse httpServletResponse)
|
protected java.lang.String |
getContentType()
Get the content type that will be used for the response header. |
protected java.io.InputStream |
getGraphInputStream(HttpServletRequest httpServletRequest)
Retrieves the input stream from the request to read the graphml from. |
Methods inherited from class javax.servlet.http.HttpServlet |
doDelete, doHead, doOptions, doPut, doTrace, getLastModified, service, service |
Methods inherited from class javax.servlet.GenericServlet |
destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, init, log, log |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public DownloadServlet()
DownloadServlet(String)
constructor using
AbstractGraphRoundtripSupport.PARAM_GRAPH
as the parameter name.
public DownloadServlet(java.lang.String graphParameter)
HttpServletRequest
later in getGraphInputStream(javax.servlet.http.HttpServletRequest)
from.
graphParameter
- the name of the parameter of null
if the ServletInputStream
shall be used.Method Detail |
protected void doGet(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws java.io.IOException
java.io.IOException
protected java.lang.String getContentType()
Depending on the servlet container configuration, the response content type might determine whether the servlet container sends a compressed response.
"text/xml"
.protected java.io.InputStream getGraphInputStream(HttpServletRequest httpServletRequest) throws java.io.IOException
ServletRequest.getParameter(String)
method using the parameter name specified in the constructor.
If no parameter name has been specified the ServletInputStream
is returned.
httpServletRequest
- the request
java.io.IOException
- if something bad happened.protected void doPost(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws ServletException, java.io.IOException
ServletException
java.io.IOException
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