com.netflix.zuul
Class ZuulFilter

java.lang.Object
  com.netflix.zuul.ZuulFilter

All Implemented Interfaces:

IZuulFilter, java.lang.Comparable<ZuulFilter>

Direct Known Subclasses:

FilterLoader.TestZuulFilter

public abstract class ZuulFilter
extends java.lang.Object
implements IZuulFilter, java.lang.Comparable<ZuulFilter>

Base abstract class for ZuulFilters. The base class defines abstract methods to define: filterType() - to classify a filter by type. Standard types in Zuul are "pre" for pre-routing filtering, "route" for routing to an origin, "post" for post-routing filters, "error" for error handling. We also support a "static" type for static responses see StaticResponseFilter. Any filterType made be created or added and run by calling FilterProcessor.runFilters(type)

filterOrder() must also be defined for a filter. Filters may have the same filterOrder if precedence is not important for a filter. filterOrders do not need to be sequential.

ZuulFilters may be disabled using Archius Properties.

By default ZuulFilters are static; they don't carry state. This may be overridden by overriding the isStaticFilter() property to false

Nested Class Summary

static class

ZuulFilter.TestUnit

Constructor Summary

ZuulFilter()

Method Summary

int	compareTo(ZuulFilter filter)
java.lang.String	disablePropertyName() The name of the Archaius property to disable this filter.
abstract int	filterOrder() filterOrder() must also be defined for a filter.
abstract java.lang.String	filterType() to classify a filter by type.
boolean	isFilterDisabled() If true, the filter has been disabled by archaius and will not be run
boolean	isStaticFilter() By default ZuulFilters are static; they don't carry state.
java.lang.Object	runFilter() runFilter checks !isFilterDisabled() and shouldFilter().

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.netflix.zuul.IZuulFilter

run, shouldFilter

Constructor Detail

ZuulFilter

public ZuulFilter()

Method Detail

filterType

public abstract java.lang.String filterType()

to classify a filter by type. Standard types in Zuul are "pre" for pre-routing filtering, "route" for routing to an origin, "post" for post-routing filters, "error" for error handling. We also support a "static" type for static responses see StaticResponseFilter. Any filterType made be created or added and run by calling FilterProcessor.runFilters(type)

Returns:

A String representing that type

filterOrder

public abstract int filterOrder()

filterOrder() must also be defined for a filter. Filters may have the same filterOrder if precedence is not important for a filter. filterOrders do not need to be sequential.

Returns:

the int order of a filter

isStaticFilter

public boolean isStaticFilter()

By default ZuulFilters are static; they don't carry state. This may be overridden by overriding the isStaticFilter() property to false

Returns:

true by default

disablePropertyName

public java.lang.String disablePropertyName()

The name of the Archaius property to disable this filter. by default it is zuul.[classname].[filtertype].disable

Returns:

isFilterDisabled

public boolean isFilterDisabled()

If true, the filter has been disabled by archaius and will not be run

Returns:

runFilter

public java.lang.Object runFilter()
                           throws java.lang.Throwable

runFilter checks !isFilterDisabled() and shouldFilter(). The run() method is invoked if both are true.

Returns:

the return from Object

Throws:

java.lang.Throwable

compareTo

public int compareTo(ZuulFilter filter)

Specified by:

compareTo in interface java.lang.Comparable<ZuulFilter>