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<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" 
        targetNamespace="urn:jboss:domain:teiid:1.0" 
        xmlns="urn:jboss:domain:teiid:1.0" 
        elementFormDefault="qualified" 
        attributeFormDefault="unqualified" 
        version="1.0">

    <!-- The naming subsystem root element -->
    <xs:element name="subsystem" type="teiidType" />

    <xs:complexType name="teiidType">
        <xs:sequence>
            <xs:element name="allow-env-function" type="xs:boolean" minOccurs="0" maxOccurs="1" default="false">
                <xs:annotation>
                    <xs:documentation>Allow execution of ENV function (default false)</xs:documentation>
                </xs:annotation>
            </xs:element>            

            <xs:element name="async-thread-pool" type="xs:string" minOccurs="0" maxOccurs="1">
                <xs:annotation>
                    <xs:documentation>Thread group to use for Async Processing</xs:documentation>
                </xs:annotation>
            </xs:element>      
              
            <xs:element name="buffer-service" maxOccurs="1" minOccurs="1">
                <xs:annotation>
                    <xs:documentation>Buffer manager information</xs:documentation>
                </xs:annotation>
                <xs:complexType>
                  <xs:attribute name="use-disk" type="xs:boolean">
                        <xs:annotation>
                            <xs:documentation>Use disk for buffer management</xs:documentation>
                        </xs:annotation>
                    </xs:attribute>
                    <xs:attribute name="inline-lobs" type="xs:boolean">
                        <xs:annotation>
                            <xs:documentation>Set to true to allow inlining of memory based and small lobs into results.</xs:documentation>
                        </xs:annotation>
                    </xs:attribute>                    
                    <xs:attribute name="processor-batch-size" type="xs:int">
                        <xs:annotation>
                            <xs:documentation>The max row count of a batch sent internally within the query processor. Should be &lt;= the connectorBatchSize. (default 512)</xs:documentation>
                        </xs:annotation>
                    </xs:attribute>
                    <xs:attribute name="connector-batch-size" type="xs:int">
                        <xs:annotation>
                            <xs:documentation> The max row count of a batch from a connector. Should be even multiple of processorBatchSize. (default 1024) </xs:documentation>
                        </xs:annotation>
                    </xs:attribute>
                    <xs:attribute name="max-processing-kb" type="xs:int">
                        <xs:annotation>
                            <xs:documentation>The approximate amount of memory in kilobytes allowed to be held by the buffer manager. -1 means to automatically calculate a value (default -1). See the admin guide for more.</xs:documentation>
                        </xs:annotation>
                    </xs:attribute>
                    <xs:attribute name="max-reserve-kb" type="xs:int">
                        <xs:annotation>
                            <xs:documentation>The approximate amount of buffer memory in kilobytes allowable for a single processing operation (sort, grouping, etc.) regardless of existing memory commitments. -1 means to automatically calculate a value (default -1).  See the admin guide for more</xs:documentation>
                        </xs:annotation>
                    </xs:attribute>
                    <xs:attribute name="max-file-size" type="xs:int">
                        <xs:annotation>
                            <xs:documentation>Max File size in MB (default 2GB)</xs:documentation>
                        </xs:annotation>
                    </xs:attribute>
                    <xs:attribute name="max-buffer-space" type="xs:int">
                        <xs:annotation>
                            <xs:documentation>Max storage space, in MB, to be used for buffer files (default 50G) </xs:documentation>
                        </xs:annotation>
                    </xs:attribute>
                    <xs:attribute name="max-open-files" type="xs:int">
                        <xs:annotation>
                            <xs:documentation>Max open buffer files (default 64)</xs:documentation>
                        </xs:annotation>
                    </xs:attribute>        
                    <xs:attribute name="memory-buffer-space" type="xs:int">
                        <xs:annotation>
                            <xs:documentation>Memory buffer space used by the buffer manager in MB.  -1 determines the setting automatically from the max-reserve-kb (default -1). This value cannot be smaller than max-storage-object-size</xs:documentation>
                        </xs:annotation>
                    </xs:attribute> 
                    <xs:attribute name="memory-buffer-off-heap" type="xs:boolean">
                        <xs:annotation>
                            <xs:documentation>Set to true to hold the memory buffer off-heap. If true you must ensure that the VM can allocate that much direct memory (default false).</xs:documentation>
                        </xs:annotation>
                    </xs:attribute> 
                    <xs:attribute name="max-storage-object-size" type="xs:int">
                        <xs:annotation>
                            <xs:documentation>The maximum size of a buffer managed object (typically a table page or a results batch) in bytes (default 8388608 or 8MB). Setting this value too high will reduce the effectiveness of the memory buffer.</xs:documentation>
                        </xs:annotation>
                    </xs:attribute>
                    <xs:attribute name="encrypt-files" type="xs:boolean">
                        <xs:annotation>
                            <xs:documentation>Set to true to encrypt temporary data files with 128-bit AES.</xs:documentation>
                        </xs:annotation>
                    </xs:attribute>                                                                     
                </xs:complexType>
            </xs:element>
            
            <xs:element name="max-threads" type="xs:int" minOccurs="0" maxOccurs="1" default="64">
                <xs:annotation>
                    <xs:documentation>Process pool maximum thread count. (default 64)</xs:documentation>
                </xs:annotation>
            </xs:element>
            
            <xs:element name="max-active-plans" type="xs:int" minOccurs="0" maxOccurs="1" default="20">
                <xs:annotation>
                    <xs:documentation>Max active plans (default 20). Increase this value on highly concurrent systems - but ensure that the underlying pools can handle the increased load without timeouts.</xs:documentation>
                </xs:annotation>
            </xs:element>
            
            <xs:element name="thread-count-for-source-concurrency" type="xs:int" minOccurs="0" maxOccurs="1" default="0">
                <xs:annotation>
                    <xs:documentation> Max source query concurrency per user request (default 0).
                        0 indicates use the default calculated value based on max active plans and max threads - approximately 2*(max threads)/(max active plans).
                        1 forces serial execution in the processing thread, just as is done for a transactional request.
                        Any number greater than 1 limits the maximum number of concurrently executing source requests accordingly.</xs:documentation>
                </xs:annotation>
            </xs:element>
            
            <xs:element name="time-slice-in-milliseconds" type="xs:int" minOccurs="0" maxOccurs="1" default="2000">
                <xs:annotation>
                    <xs:documentation>Query processor time slice, in milliseconds. (default 2000)</xs:documentation>
                </xs:annotation>
            </xs:element>
            
            <xs:element name="max-row-fetch-size" type="xs:int" minOccurs="0" maxOccurs="1" default="20480">
                <xs:annotation>
                    <xs:documentation>Maximum allowed fetch size, set via JDBC. User requested value ignored above this value. (default 20480)</xs:documentation>
                </xs:annotation>
            </xs:element>
            
            <xs:element name="lob-chunk-size-in-kb" type="xs:int" minOccurs="0" maxOccurs="1" default="100">
                <xs:annotation>
                    <xs:documentation>The max lob chunk size in KB transferred each time when processing blobs, clobs (100KB default)</xs:documentation>
                </xs:annotation>
            </xs:element>
            
            <xs:element name="query-threshold-in-seconds" type="xs:int" minOccurs="0" maxOccurs="1" default="600">
                <xs:annotation>
                    <xs:documentation>Long running query threshold, after which a alert can be generated by tooling if configured (600 secs)</xs:documentation>
                </xs:annotation>
            </xs:element>
            
            <xs:element name="max-source-rows-allowed" type="xs:int" minOccurs="0" maxOccurs="1" default="-1">
                <xs:annotation>
                    <xs:documentation>Maximum rows allowed from a source query. -1 indicates no limit. (default -1)</xs:documentation>
                </xs:annotation>
            </xs:element>
            
            <xs:element name="exception-on-max-source-rows" type="xs:boolean" minOccurs="0" maxOccurs="1" default="true">
                <xs:annotation>
                    <xs:documentation>Indicates if an exception should be thrown if the specified value for Maximum Source Rows is exceeded; only up to the maximum rows will be consumed. (default true)</xs:documentation>
                </xs:annotation>
            </xs:element>
            
            <xs:element name="max-odbc-lob-size-allowed" type="xs:int" minOccurs="0" maxOccurs="1" default="5242880">
                <xs:annotation>
                    <xs:documentation>Maximum size of lob allowed through ODBC connection in bytes (default 5MB)</xs:documentation>
                </xs:annotation>
            </xs:element>
            
            <xs:element name="detect-change-events" type="xs:boolean" minOccurs="0" maxOccurs="1" default="true">
                <xs:annotation>
                    <xs:documentation>Set to true for the engine to detect local change events. Should be disabled if using external change data capture tools. (default true)</xs:documentation>
                </xs:annotation>
            </xs:element>            
            <xs:element name="query-timeout" type="xs:long" minOccurs="0" maxOccurs="1" default="0">
                <xs:annotation>
                    <xs:documentation>Set the default query timeout for all queries in milliseconds. 0 indicates no timeout.  Lesser timeout values may be set per VDB or by clients. (default 0)</xs:documentation>
                </xs:annotation>
            </xs:element>      
            
            <xs:element name="workmanager" type="xs:string" minOccurs="0" maxOccurs="1" default="default">
                <xs:annotation>
                    <xs:documentation>WorkManager name to use in processing. (default name is "default")</xs:documentation>
                </xs:annotation>
            </xs:element>                             
            
            <xs:element name="authorization-validator-module" type="xs:string" minOccurs="0" maxOccurs="1">
                <xs:annotation>
                    <xs:documentation>An authorization validator that by default uses data role information stored in VDBs. Provide module name.</xs:documentation>
                </xs:annotation>
            </xs:element>
            
            <xs:element name="policy-decider-module" type="xs:string" minOccurs="0" maxOccurs="1">
                <xs:annotation>
                    <xs:documentation>A policy decider that uses data role information stored in VDBs, Provide module name.</xs:documentation>
                </xs:annotation>
            </xs:element>
            
            <xs:element name="metadata-repository-module" type="xs:string" minOccurs="0" maxOccurs="1">
                <xs:annotation>
                    <xs:documentation>Runtime Metadata Updates can be made persistent though by configuring a "org.teiid.metadata.MetadataRepository"</xs:documentation>
                </xs:annotation>
            </xs:element>
            
            <xs:element name="resultset-cache" maxOccurs="1" minOccurs="0">
                <xs:annotation>
                    <xs:documentation>Configuration for result set caching.</xs:documentation>
                </xs:annotation>
                <xs:complexType>
                    <xs:attribute name="name" type="xs:string"/>
                    <xs:attribute name="infinispan-container" type="xs:string" use="required"/>
                    <xs:attribute name="enable" type="xs:boolean" default="true"/>
                    <xs:attribute name="max-staleness" type="xs:int" default="60"/>
                </xs:complexType>
            </xs:element>
            
            <xs:element name="preparedplan-cache" maxOccurs="1" minOccurs="0">
                <xs:annotation>
                    <xs:documentation>Configuration for prepared plan caching. (local memory only)</xs:documentation>
                </xs:annotation>
                <xs:complexType>
                    <xs:attribute name="name" type="xs:string"/>
                    <xs:attribute name="infinispan-container" type="xs:string" use="required"/>
                    <xs:attribute name="enable" type="xs:boolean" default="true"/>
                </xs:complexType>
            </xs:element>
            
            <xs:element name="distributed-cache" maxOccurs="1" minOccurs="0">
                <xs:annotation>
                    <xs:documentation>Cluster wide results distributor </xs:documentation>
                </xs:annotation>
                <xs:complexType>
                    <xs:attribute name="jgroups-stack" type="xs:string" use="required"/>
                </xs:complexType>
            </xs:element>            
        
            <xs:element name="transport" type="transport-type" maxOccurs="unbounded" minOccurs="0">
                <xs:annotation>
                    <xs:documentation>Teiid transport configuration</xs:documentation>
                </xs:annotation>
            </xs:element>
            
            <xs:element name="translator" maxOccurs="unbounded" minOccurs="0">
                <xs:annotation>
                    <xs:documentation>Translators defined in the system</xs:documentation>
                </xs:annotation>
                <xs:complexType>
                    <xs:attribute name="name" type="xs:string" use="required"/>
                    <xs:attribute name="module" type="xs:string" use="required"/>
                </xs:complexType>
            </xs:element>            
        </xs:sequence>
    </xs:complexType>

    <xs:complexType name="transport-type">
        <xs:sequence>
            <xs:element name="authentication" minOccurs="0" maxOccurs="1">
                <xs:complexType>
                    <xs:attribute name="security-domain" type="xs:string">
                        <xs:annotation>
                            <xs:documentation>Comma separated list of domains to be used to login into Teiid</xs:documentation>
                        </xs:annotation>                    
                    </xs:attribute>
                    <xs:attribute name="max-sessions-allowed" type="xs:int" default="5000">
                        <xs:annotation>
                            <xs:documentation>Maximum number of sessions allowed by the system (default 5000)</xs:documentation>
                        </xs:annotation>                    
                    </xs:attribute>
                    <xs:attribute name="sessions-expiration-timelimit" type="xs:int">
                        <xs:annotation>
                            <xs:documentation>Max allowed time before the session is terminated by the system, 0 indicates unlimited (default 0)</xs:documentation>
                        </xs:annotation>                    
                    </xs:attribute>
                    <xs:attribute name="krb5-domain" type="xs:string">
                        <xs:annotation>
                            <xs:documentation>Kerberos domain name if GSS API based single sign on is being used</xs:documentation>
                        </xs:annotation>                    
                    </xs:attribute>                                        
                    <xs:attribute name="type" type="xs:string">
                        <xs:annotation>
                            <xs:documentation>Default authentication type to be used with the transport. Allowed values(CLEARTEXT, GSS)</xs:documentation>
                        </xs:annotation>                    
                    </xs:attribute>                    
                </xs:complexType>                
            </xs:element>

            <xs:element name="pg" minOccurs="0" maxOccurs="1">
                <xs:complexType>
                    <xs:attribute name="max-lob-size-in-bytes" type="xs:int">
                        <xs:annotation>
                            <xs:documentation>Max Lob size allowed in the PG transport</xs:documentation>
                        </xs:annotation>                    
                    </xs:attribute>
                </xs:complexType>                
            </xs:element>

            
            <xs:element name="ssl" minOccurs="0" maxOccurs="1">
                <xs:annotation>
                    <xs:documentation>SSL Configuration</xs:documentation>
                </xs:annotation>
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="keystore" minOccurs="0" maxOccurs="1">
                            <xs:complexType>
                                <xs:attribute name="name" type="xs:string">
                                    <xs:annotation>
                                        <xs:documentation>Keystore Name</xs:documentation>
                                    </xs:annotation>                    
                                </xs:attribute>
                                <xs:attribute name="password" type="xs:string">
                                    <xs:annotation>
                                        <xs:documentation>Keystore Password</xs:documentation>
                                    </xs:annotation>                    
                                </xs:attribute>
                                <xs:attribute name="type" type="xs:string" default="JKS">
                                    <xs:annotation>
                                        <xs:documentation>Keystore Type</xs:documentation>
                                    </xs:annotation>                    
                                </xs:attribute>
                                <xs:attribute name="key-alias" type="xs:string">
                                    <xs:annotation>
                                        <xs:documentation>key alias name</xs:documentation>
                                    </xs:annotation>                    
                                </xs:attribute>                   
                                <xs:attribute name="key-password" type="xs:string">
                                    <xs:annotation>
                                        <xs:documentation>key password</xs:documentation>
                                    </xs:annotation>                    
                                </xs:attribute>             
                            </xs:complexType>                        
                        </xs:element>
                        <xs:element name="truststore" minOccurs="0" maxOccurs="1">
                            <xs:complexType>
                                <xs:attribute name="name" type="xs:string">
                                    <xs:annotation>
                                        <xs:documentation>Truststore Name</xs:documentation>
                                    </xs:annotation>                    
                                </xs:attribute>
                                <xs:attribute name="password" type="xs:string">
                                    <xs:annotation>
                                        <xs:documentation>Truststore Password</xs:documentation>
                                    </xs:annotation>                    
                                </xs:attribute>
                            </xs:complexType>                        
                        </xs:element>                                                
                    </xs:sequence>
                    <xs:attribute name="mode" default="login">
                        <xs:annotation>
                            <xs:documentation>can be one of disabled, login, or enabled
                                disabled = no transport or message level security will be used
                                login = only the login traffic will be encrypted at a message level
                                using 128 bit AES with an ephemerial DH key exchange.
                                No other config values are needed in this mode; and it only applies to the JDBC transport
                                enabled = traffic will be secured using this configuration</xs:documentation>
                        </xs:annotation>
                        <xs:simpleType>
                            <xs:restriction base="xs:string">
                                <xs:enumeration value="login" />
                                <xs:enumeration value="enabled" />
                                <xs:enumeration value="disabled" />
                            </xs:restriction>
                        </xs:simpleType>                
                    </xs:attribute>
                    <xs:attribute name="authentication-mode" default="1-way">
                        <xs:annotation>
                            <xs:documentation>1-way, 2-way, anonymous</xs:documentation>
                        </xs:annotation>
                        <xs:simpleType>
                            <xs:restriction base="xs:string">
                                <xs:enumeration value="1-way" />
                                <xs:enumeration value="2-way" />
                                <xs:enumeration value="anonymous" />
                            </xs:restriction>
                        </xs:simpleType>                                
                    </xs:attribute>
                    <xs:attribute name="ssl-protocol" type="xs:string" default="TLSv1"/>
                    <xs:attribute name="keymanagement-algorithm" type="xs:string"/>
                    <xs:attribute name="enable" type="xs:boolean"/>
                    <xs:attribute name="enabled-cipher-suites" type="xs:string">
                        <xs:annotation>
                            <xs:documentation>Comma separated cipher suites that are allowed to be used for SSL. Use to restrict encryption strength(128 bit, 256 bit). 
                            Only provide encryption suites that are supported by the server JVM.</xs:documentation>
                        </xs:annotation>        
                    </xs:attribute>
                </xs:complexType>
            </xs:element>            
        </xs:sequence>
        <xs:attribute name="name" type="xs:string" use="required"/>
        <xs:attribute name="protocol" default="teiid">
            <xs:simpleType>
                <xs:restriction base="xs:string">
                    <xs:enumeration value="teiid" />
                    <xs:enumeration value="pg" />
                </xs:restriction>
            </xs:simpleType>
        </xs:attribute>         
        <xs:attribute name="socket-binding" type="xs:string" use="required"/>
        <xs:attribute name="input-buffer-size" type="xs:int">
                <xs:annotation>
                    <xs:documentation>SO_RCVBUF size, 0 indicates that system default should be used (default 0) </xs:documentation>
                </xs:annotation>
        </xs:attribute>
        <xs:attribute name="output-buffer-size" type="xs:string">
                <xs:annotation>
                    <xs:documentation>SO_SNDBUF size, 0 indicates that system default should be used (default 0)</xs:documentation>
                </xs:annotation>
        </xs:attribute>
        <xs:attribute name="max-socket-threads" type="xs:int">
                <xs:annotation>
                    <xs:documentation>Max number of threads dedicated to initial request processing.
                        Zero indicates the system default of max available processors. (default 0)
                        Setting this value above the max available processors is not recommended.</xs:documentation>
                </xs:annotation>        
        </xs:attribute>
    </xs:complexType>

</xs:schema>
