org.camunda.bpm.webapp.impl.filter

Class AbstractTemplateFilter

java.lang.Object

org.camunda.bpm.webapp.impl.filter.AbstractTemplateFilter

All Implemented Interfaces:

javax.servlet.Filter

Direct Known Subclasses:

ProcessEnginesFilter

public abstract class AbstractTemplateFilter
extends Object
implements javax.servlet.Filter

A Filter implementation that can be used to realize basic templating.

Author:

nico.rehwaldt

Constructor Summary

Constructors

Constructor and Description
AbstractTemplateFilter()

Method Summary

Modifier and Type	Method and Description
protected abstract void	applyFilter(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, javax.servlet.FilterChain chain) Apply the filter to the given request/response.
void	destroy()
void	doFilter(javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, javax.servlet.FilterChain chain)
protected String	getWebResourceContents(String name) Returns the string contents of a web resource with the given name.
protected boolean	hasWebResource(String name) Returns true if the given web resource exists.
void	init(javax.servlet.FilterConfig filterConfig)

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractTemplateFilter

public AbstractTemplateFilter()

Method Detail

init

public void init(javax.servlet.FilterConfig filterConfig)
          throws javax.servlet.ServletException

Specified by:

init in interface javax.servlet.Filter

Throws:

javax.servlet.ServletException

destroy

public void destroy()

Specified by:

destroy in interface javax.servlet.Filter

doFilter

public void doFilter(javax.servlet.ServletRequest request,
                     javax.servlet.ServletResponse response,
                     javax.servlet.FilterChain chain)
              throws IOException,
                     javax.servlet.ServletException

Specified by:

doFilter in interface javax.servlet.Filter

Throws:

IOException

javax.servlet.ServletException

applyFilter

protected abstract void applyFilter(javax.servlet.http.HttpServletRequest request,
                                    javax.servlet.http.HttpServletResponse response,
                                    javax.servlet.FilterChain chain)
                             throws IOException,
                                    javax.servlet.ServletException

Apply the filter to the given request/response. This method must be provided by subclasses to perform actual work.

Parameters:

request -

response -

chain -

Throws:

IOException

javax.servlet.ServletException

hasWebResource

protected boolean hasWebResource(String name)

Returns true if the given web resource exists.

Parameters:

name -

Returns:

getWebResourceContents

protected String getWebResourceContents(String name)
                                 throws IOException

Returns the string contents of a web resource with the given name. The resource must be static and text based.

Parameters:

name - the name of the resource

Returns:

the resource contents

Throws:

IOException