<?xml version="1.0" encoding="UTF-8"?>
<xs:schema targetNamespace="http://www.alfresco.org/model/audit/1.0" elementFormDefault="qualified" xml:lang="EN" xmlns:xs="http://www.w3.org/2001/XMLSchema"
    xmlns:a="http://www.alfresco.org/model/audit/1.0">
    
    <xs:annotation>
        <xs:documentation xml:lang="EN"> Schema to define audit configuration. </xs:documentation>
    </xs:annotation>
    
    <!-- Root element is the Audit element -->
    
    
    <xs:element name="Audit" type="a:Audit"/>
    
    <!--                  -->
    <!-- Type definitions -->
    <!--                  -->
    
    <!-- Options for what to record -->
    <!-- By default these are not recorded. Behaviour is "inherited" from containing elements for unspecified entries --> 
    
    <xs:complexType name="RecordOptions">
        <xs:sequence>
            <xs:element name="recordPath" type="xs:boolean" minOccurs="0" maxOccurs="1" />
            <xs:element name="recordFilters" type="xs:boolean"  minOccurs="0" maxOccurs="1" />
            <xs:element name="recordSerializedReturnValue" type="xs:boolean" minOccurs="0" maxOccurs="1" />
            <xs:element name="recordSerializedExceptions" type="xs:boolean" minOccurs="0" maxOccurs="1" />
            <xs:element name="recordSerializedMethodArguments" type="xs:boolean" minOccurs="0" maxOccurs="1" />
            <xs:element name="recordSerializedKeyPropertiesBeforeInvocation" type="xs:boolean" minOccurs="0" maxOccurs="1" />
            <xs:element name="recordSerializedKeyPropertiesAferInvocation" type="xs:boolean" minOccurs="0" maxOccurs="1" />
        </xs:sequence>
    </xs:complexType>
    
    <!-- Abstract Filter entry -->
    
    <xs:complexType name="Filter" abstract="true"/>
    
    <!-- Simple Filter entry -->
    <!--
    
    Supports:
        Simple path
        Type (and sub-types)
        Aspect (and sub-aspects)
        NodeRef
        All (do not filter)
        XPATH simple xpath expressions in the context of the key node 
        A simple value (intended for use with non node arguments)
    
    -->
    <xs:simpleType name="KeyFilterType">
        <xs:restriction base="xs:string">
            <xs:enumeration value="path"/>
            <xs:enumeration value="type"/>
            <xs:enumeration value="aspect"/>
            <xs:enumeration value="id"/>
            <xs:enumeration value="all"/>
            <xs:enumeration value="xpath"/>
            <xs:enumeration value="value"/>
            <xs:enumeration value="protocol"/>
            <xs:enumeration value="store"/>
        </xs:restriction>
    </xs:simpleType>
    
    <!-- Audit Mode -->
    
    <xs:simpleType name="AuditMode">
        <xs:restriction base="xs:string">
            <xs:enumeration value="all"/>
            <xs:enumeration value="success"/>
            <xs:enumeration value="fail"/>
            <xs:enumeration value="none"/>
        </xs:restriction>
    </xs:simpleType>
    
    <!-- Defintion for how to combine elements in a compound filter -->
    
    <xs:simpleType name="FilterSetMode">
        <xs:restriction base="xs:string">
            <xs:enumeration value="and"/>
            <xs:enumeration value="or"/>
        </xs:restriction>
    </xs:simpleType>
    
    <!-- Define a set of filters -->
    
    <xs:complexType name="FilterSet">
        <xs:complexContent>
            <xs:extension base="a:Filter">
                <xs:sequence>
                    <xs:element name="Filter" type="a:Filter" minOccurs="1" maxOccurs="unbounded"/>
                </xs:sequence>
                <xs:attribute name="mode" type="a:FilterSetMode" use="required"/>
            </xs:extension>
        </xs:complexContent>
    </xs:complexType>
    
    <!-- A filter that applies to the key node -->
    
    <xs:complexType name="KeyFilter">
        <xs:complexContent>
            <xs:extension base="a:Filter">
                <xs:sequence>
                    <xs:element name="Expression" type="xs:string"/>
                </xs:sequence>
                <xs:attribute name="type" type="a:KeyFilterType" use="required"/>
            </xs:extension>
        </xs:complexContent>
    </xs:complexType>
    
    <!-- A filter that applies to a named parameter -->
    
    <xs:complexType name="ParameterFilter">
        <xs:complexContent>
            <xs:extension base="a:KeyFilter">
                <xs:sequence>
                    <xs:element name="ParameterName" type="xs:string"/>
                </xs:sequence>
            </xs:extension>
        </xs:complexContent>
    </xs:complexType>
    
    <!-- An abstract audit entry -->
    
    <xs:complexType name="AuditEntry" abstract="true">
        <xs:sequence>
            <xs:element name="RecordOptions" type="a:RecordOptions" minOccurs="0" maxOccurs="1"/>
            <xs:element name="Filter" type="a:Filter" minOccurs="0" maxOccurs="1"  />
        </xs:sequence>
        <!-- The inner most specification over-rides -->
        <xs:attribute name="mode" type="a:AuditMode" />
        <!-- The outer most specification set this -->
        <xs:attribute name="enabled" type="xs:boolean" />
        <!--  The inner most specification over-rides -->
        <xs:attribute name="auditInternal" type="xs:boolean" />
    </xs:complexType>
    
    <!-- Force default behaviour to be specified on the root Audit node -->
    
    <xs:complexType name="MandatoryAuditEntry" abstract="true">
        <xs:complexContent>
            <xs:restriction base="a:AuditEntry">
                <xs:sequence>
                    <xs:element name="RecordOptions" type="a:RecordOptions" minOccurs="0" maxOccurs="1"/>
                    <xs:element name="Filter" type="a:Filter" minOccurs="0" maxOccurs="1"/>
                </xs:sequence>
                <xs:attribute name="mode" type="a:AuditMode" use="required"/>
                <xs:attribute name="enabled" type="xs:boolean" use="required"/>
                <xs:attribute name="auditInternal" type="xs:boolean" use="required"/>
            </xs:restriction>
        </xs:complexContent>
        
    </xs:complexType>
    
    <!-- An abstract audit entry with a name -->
    
    <xs:complexType name="NamedAuditEntry" abstract="true">
        <xs:complexContent>
            <xs:extension base="a:AuditEntry">
                <xs:attribute name="name" type="xs:string" use="required"/>
            </xs:extension>
        </xs:complexContent>
    </xs:complexType>
    
    <!-- Method level audit control -->
    
    <xs:complexType name="Method">
        <xs:complexContent>
            <xs:extension base="a:NamedAuditEntry"/>
        </xs:complexContent>
    </xs:complexType>
    
    <!-- Application level audit control -->
    
    <xs:complexType name="Application">
        <xs:complexContent>
            <xs:extension base="a:NamedAuditEntry"/>
        </xs:complexContent>
    </xs:complexType>
    
    <!-- Service level audit control -->
    
    <xs:complexType name="Service">
        <xs:complexContent>
            <xs:extension base="a:NamedAuditEntry">
                <xs:sequence>
                    <xs:element name="Method" type="a:Method" minOccurs="0" maxOccurs="unbounded"/>
                </xs:sequence>
            </xs:extension>
        </xs:complexContent>
    </xs:complexType>
    
    <!-- Global audit level control -->
    
    <xs:complexType name="Audit">
        <xs:complexContent>
            <xs:extension base="a:MandatoryAuditEntry">
                <xs:sequence>
                    <xs:element name="Service" type="a:Service" minOccurs="0" maxOccurs="unbounded"/>
                </xs:sequence>
            </xs:extension>
        </xs:complexContent>
    </xs:complexType>
    
</xs:schema>