ADTF Plugin Description XML Schema file

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
    xmlns:adtf="adtf/xsd/plugindescription"
    attributeFormDefault="unqualified"
    elementFormDefault="qualified"
    targetNamespace="adtf/xsd/plugindescription"
    version="1.0">
 
    <xs:element name="plugindescription" type="adtf:plugindescription"/>
 
    <xs:complexType name="plugindescription">
        <xs:sequence>
            <xs:element name="file_version" type="adtf:file_version_plugindescription">
                <xs:annotation>
                    <xs:documentation>This is the version of the current file.</xs:documentation>
                </xs:annotation>
            </xs:element>
            <xs:element name="name" type="xs:string" />
            <xs:element name="cache_info" type="adtf:cache_info" />
            <xs:element name="debug" type="xs:boolean" minOccurs="0" maxOccurs="1"/>
            <xs:element name="versions" >
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="version" type="adtf:version" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="service_descriptions">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="service_description" type="adtf:service_description" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="filter_descriptions">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="filter_description"
                                    type="adtf:graph_object_description"
                                    minOccurs="0"
                                    maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="activerunner_descriptions">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="activerunner_description"
                                    type="adtf:activerunner_description"
                                    minOccurs="0"
                                    maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="samplestream_descriptions">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="samplestream_description"
                                    type="adtf:samplestream_description"
                                    minOccurs="0"
                                    maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="bindingproxy_descriptions">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="bindingproxy_description"
                                    type="adtf:bindingproxy_description"
                                    minOccurs="0"
                                    maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="streaming_sink_descriptions">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="streaming_sink"
                                    type="adtf:graph_object_description"
                                    minOccurs="0"
                                    maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="streaming_source_descriptions">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="streaming_source"
                                    type="adtf:graph_object_description"
                                    minOccurs="0"
                                    maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
                        <xs:element name="platform_dependencies" minOccurs="0" maxOccurs="1">
               <xs:complexType>
                   <xs:sequence>
                        <xs:element name="platform_dependency" minOccurs="0" maxOccurs="unbounded" type="adtf:platform_dependency"></xs:element>
                   </xs:sequence>
               </xs:complexType>
            </xs:element>
            <xs:element name="platform" type="xs:string" minOccurs="0" maxOccurs="1" />
            <xs:element name="license" type="xs:string" minOccurs="0" maxOccurs="1" />
            <xs:element name="support_mail" type="xs:string" minOccurs="0" maxOccurs="1" />
            <xs:element name="homepage_url" type="xs:string" minOccurs="0" maxOccurs="1" />
            <xs:element name="issue_url" type="xs:string" minOccurs="0" maxOccurs="1" />
            <xs:any namespace="##other" processContents="skip"
                 minOccurs="0" maxOccurs="unbounded"/>
        </xs:sequence>
    </xs:complexType>
 
    <xs:complexType name="file_version_plugindescription">
        <xs:sequence>
            <xs:element name="major" type="xs:unsignedInt" />
            <xs:element name="minor" type="xs:unsignedInt" />
        </xs:sequence>
    </xs:complexType>
 
    <!-- Upcoming types are the types of the plugindescription in given order -->
    <!-- CacheInfo -->
    <xs:complexType name="cache_info">
        <xs:sequence>
            <xs:element name="plugin_name" type="xs:string" />
            <xs:element name="plugin_checksum" type="xs:string" />
            <xs:element name="plugin_version" type="adtf:plugin_version" minOccurs="0" maxOccurs="1" />
            <xs:any namespace="##other" processContents="skip"
                 minOccurs="0" maxOccurs="unbounded"/>
        </xs:sequence>
    </xs:complexType>
 
    <!-- Versions -->
    <xs:complexType name="plugin_version">
        <xs:sequence>
            <xs:element name="major" type="xs:unsignedInt" />
            <xs:element name="minor" type="xs:unsignedInt" />
            <xs:element name="patch" type="xs:unsignedInt" />
        </xs:sequence>
    </xs:complexType>
 
    <!-- Versions -->
    <xs:complexType name="version">
        <xs:sequence>
            <xs:element name="name" type="xs:string" />
            <xs:element name="major" type="xs:unsignedInt" />
            <xs:element name="minor" type="xs:unsignedInt" />
            <xs:element name="patch" type="xs:unsignedInt" />
            <xs:element name="description" type="xs:string" default="" />
        </xs:sequence>
    </xs:complexType>
 
    <!-- Services -->
    <xs:complexType name="service_description">
        <xs:sequence>
            <xs:element name="name" type="xs:string" />
            <xs:element name="label" type="xs:string" />
            <xs:element name="versions" >
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="version" type="adtf:version" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="provided_interfaces">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="interface_description" type="adtf:interface_description" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="required_interfaces">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="interface_description" type="adtf:interface_description" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="required_optional_interfaces">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="interface_description" type="adtf:interface_description" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <!-- <xs:element name="category" type="xs:int"  /> -->
            <xs:element name="description" type="xs:string" default="" />
            <xs:element name="property_set_description" type="adtf:property_set_description"/>
            <xs:element name="editor_descriptions" minOccurs="0" maxOccurs="1">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="editor_description" type="adtf:editor_description" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
                        <xs:element name="runlevel" type="xs:string" minOccurs="0" maxOccurs="1"/>
            <xs:element name="help_link" type="xs:string" minOccurs="0" maxOccurs="1" />
            <xs:any namespace="##other" processContents="skip"
                 minOccurs="0" maxOccurs="unbounded"/>
        </xs:sequence>
    </xs:complexType>
 
    <xs:complexType name="interface_description">
        <xs:sequence>
            <xs:element name="iid" type="xs:string" />
            <xs:any namespace="##other" processContents="skip"
                 minOccurs="0" maxOccurs="unbounded"/>
        </xs:sequence>
    </xs:complexType>
 
    <xs:complexType name="property_set_description">
        <xs:sequence>
            <xs:element name="property_descriptions">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="property_description"
                                    type="adtf:property_description"
                                    minOccurs="0"
                                    maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="ref_property_descriptions">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="ref_property_description"
                                    type="adtf:ref_property_description"
                                    minOccurs="0"
                                    maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:any namespace="##other" processContents="skip"
                 minOccurs="0" maxOccurs="unbounded"/>
        </xs:sequence>
    </xs:complexType>
 
    <xs:complexType name="property_description">
        <xs:sequence>
            <xs:element name="name" type="xs:string"/>
            <xs:element name="type" type="xs:string"/>
            <xs:element name="value" type="xs:string"/>
            <xs:element name="list" minOccurs="0" maxOccurs="1">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="property_list_enumeration"
                                    type="adtf:property_list_enumeration"
                                    minOccurs="0"
                                    maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="list_extendable" type="xs:boolean" minOccurs="0" maxOccurs="1"/>
            <xs:element name="display_name" type="xs:string" minOccurs="0" maxOccurs="1"/>
            <xs:element name="description_text" type="xs:string" minOccurs="0" maxOccurs="1"/>
            <xs:element name="minimum_value" type="xs:string" minOccurs="0" maxOccurs="1"/>
            <xs:element name="maximum_value" type="xs:string" minOccurs="0" maxOccurs="1"/>
            <xs:element name="filename_description" minOccurs="0" maxOccurs="1" type="adtf:filename_description"/>
            <xs:any namespace="##other" processContents="skip"
                 minOccurs="0" maxOccurs="unbounded"/>
        </xs:sequence>
    </xs:complexType>
 
    <xs:complexType name="filename_description">
        <xs:sequence>
            <xs:element name="write" type="xs:boolean" default="false"/>
            <xs:element name="extension_filter" type="xs:string" minOccurs="0" maxOccurs="1"/>
            <xs:any namespace="##other" processContents="skip"
                 minOccurs="0" maxOccurs="unbounded"/>
        </xs:sequence>
    </xs:complexType>
    
    <xs:complexType name="property_list_enumeration">
        <xs:sequence>
            <xs:element name="name" type="xs:string"/>
            <xs:element name="value" type="xs:string"/>
        </xs:sequence>
    </xs:complexType>
 
    <xs:complexType name="ref_property_description">
        <xs:sequence>
            <xs:element name="name" type="xs:string"/>
            <xs:any namespace="##other" processContents="skip"
                 minOccurs="0" maxOccurs="unbounded"/>
        </xs:sequence>
    </xs:complexType>
 
    <!-- Filters -->
    <xs:complexType name="graph_object_description">
        <xs:sequence>
            <xs:element name="name" type="xs:string" />
            <xs:element name="label" type="xs:string" />
            <xs:element name="versions" >
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="version" type="adtf:version" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="category" type="xs:int" />
            <xs:element name="description" type="xs:string" default="" />
            <xs:element name="property_set_description" type="adtf:property_set_description"/>
            <xs:element name="pin_set_description" type="adtf:pin_set_description"/>
            <xs:element name="editor_descriptions" minOccurs="0" maxOccurs="1">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="editor_description" type="adtf:editor_description" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
                        <xs:element name="provided_interfaces" minOccurs="0" maxOccurs="1">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="interface_description" type="adtf:interface_description" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="required_interfaces" minOccurs="0" maxOccurs="1">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="interface_description" type="adtf:interface_description" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="required_optional_interfaces" minOccurs="0" maxOccurs="1">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="interface_description" type="adtf:interface_description" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="help_link" type="xs:string" minOccurs="0" maxOccurs="1" />
            <xs:any namespace="##other" processContents="skip"
                 minOccurs="0" maxOccurs="unbounded"/>
        </xs:sequence>
    </xs:complexType>
 
    <xs:complexType name="pin_set_description">
        <xs:sequence>
            <xs:element name="pin_descriptions">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="pin_description" type="adtf:pin_description" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="binding_object_descriptions" >
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="binding_object_description" type="adtf:binding_object_description" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="runner_descriptions" >
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="runner_description" type="adtf:runner_description" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="dynamic_input_pins" default="false" type="xs:boolean" />
            <xs:element name="dynamic_output_pins" default="false" type="xs:boolean" />
            <xs:element name="dynamic_input_binding_pins" default="false" type="xs:boolean" minOccurs="0" maxOccurs="1"/>
            <xs:element name="dynamic_output_binding_pins" default="false" type="xs:boolean" minOccurs="0" maxOccurs="1"/>
            <xs:element name="dynamic_input_runner_pins" default="false" type="xs:boolean" minOccurs="0" maxOccurs="1"/>
            <xs:any namespace="##other" processContents="skip"
                 minOccurs="0" maxOccurs="unbounded"/>
        </xs:sequence>
    </xs:complexType>
 
    <xs:complexType name="binding_object_description">
        <xs:sequence>
            <xs:element name="name" type="xs:string" />
            <xs:element name="iid" type="xs:string" />
            <xs:element name="proxy_oid" type="xs:string" />
            <xs:element name="direction" type="xs:int" />
            <xs:element name="description" type="xs:string" default=""/>
            <xs:any namespace="##other" processContents="skip"
                 minOccurs="0" maxOccurs="unbounded"/>
        </xs:sequence>
    </xs:complexType>
 
    <xs:complexType name="runner_description">
        <xs:sequence>
            <xs:element name="name" type="xs:string"/>
            <xs:element name="activation_type" type="xs:int"/>
            <xs:element name="description" type="xs:string"  default=""/>
            <xs:element name="help_link" type="xs:string" minOccurs="0" maxOccurs="1"/>
            <xs:element name="trigger_hint" type="adtf:trigger_hint" minOccurs="0" maxOccurs="1"/>
            <xs:any namespace="##other" processContents="skip"
                 minOccurs="0" maxOccurs="unbounded"/>
        </xs:sequence>
    </xs:complexType>
 
    <xs:complexType name="trigger_hint">
        <xs:sequence>
            <xs:element name="data_triggered" type="xs:boolean" default="false" />
            <xs:element name="thread_triggered" type="xs:boolean" default="false"/>
            <xs:element name="timer_triggered" type="xs:boolean" default="false"/>
            <xs:element name="data_input" type="xs:string"/>
            <xs:element name="thread_cyclic" type="xs:boolean"/>
            <xs:element name="timer_interval" type="xs:int"/>
        </xs:sequence>
    </xs:complexType>
 
    <xs:complexType name="editor_description">
        <xs:sequence>
            <xs:element name="name" type="xs:string" />
            <xs:element name="url" type="xs:string" />
        </xs:sequence>
    </xs:complexType>
 
    <xs:complexType name="activerunner_description">
        <xs:sequence>
            <xs:element name="name" type="xs:string" />
            <xs:element name="label" type="xs:string" />
            <xs:element name="versions" >
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="version" type="adtf:version" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="category" type="xs:int" />
            <xs:element name="description" type="xs:string"  default=""/>
            <xs:element name="property_set_description" type="adtf:property_set_description"/>
                        <xs:element name="editor_descriptions" minOccurs="0" maxOccurs="1">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="editor_description" type="adtf:editor_description" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
                        <xs:element name="provided_interfaces" minOccurs="0" maxOccurs="1">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="interface_description" type="adtf:interface_description" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="required_interfaces" minOccurs="0" maxOccurs="1">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="interface_description" type="adtf:interface_description" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="required_optional_interfaces" minOccurs="0" maxOccurs="1">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="interface_description" type="adtf:interface_description" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="help_link" type="xs:string" minOccurs="0" maxOccurs="1" />
            <xs:any namespace="##other" processContents="skip"
                 minOccurs="0" maxOccurs="unbounded"/>
        </xs:sequence>
    </xs:complexType>
 
    <xs:complexType name="samplestream_description">
        <xs:sequence>
            <xs:element name="name" type="xs:string" />
            <xs:element name="label" type="xs:string" />
            <xs:element name="versions" >
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="version" type="adtf:version" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="description" type="xs:string"  default=""/>
            <xs:element name="property_set_description" type="adtf:property_set_description"/>
                        <xs:element name="editor_descriptions" minOccurs="0" maxOccurs="1">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="editor_description" type="adtf:editor_description" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
                        <xs:element name="provided_interfaces" minOccurs="0" maxOccurs="1">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="interface_description" type="adtf:interface_description" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="required_interfaces" minOccurs="0" maxOccurs="1">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="interface_description" type="adtf:interface_description" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="required_optional_interfaces" minOccurs="0" maxOccurs="1">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="interface_description" type="adtf:interface_description" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="help_link" type="xs:string" minOccurs="0" maxOccurs="1" />
            <xs:any namespace="##other" processContents="skip"
                 minOccurs="0" maxOccurs="unbounded"/>
        </xs:sequence>
    </xs:complexType>
 
    <xs:complexType name="bindingproxy_description">
        <xs:sequence>
            <xs:element name="name" type="xs:string" />
            <xs:element name="label" type="xs:string" />
            <xs:element name="versions" >
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="version" type="adtf:version" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="description" type="xs:string"  default=""/>
            <xs:element name="property_set_description" type="adtf:property_set_description"/>
                        <xs:element name="editor_descriptions" minOccurs="0" maxOccurs="1">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="editor_description" type="adtf:editor_description" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
                        <xs:element name="provided_interfaces" minOccurs="0" maxOccurs="1">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="interface_description" type="adtf:interface_description" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="required_interfaces" minOccurs="0" maxOccurs="1">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="interface_description" type="adtf:interface_description" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="required_optional_interfaces" minOccurs="0" maxOccurs="1">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="interface_description" type="adtf:interface_description" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:element name="help_link" type="xs:string" minOccurs="0" maxOccurs="1" />
            <xs:any namespace="##other" processContents="skip"
                 minOccurs="0" maxOccurs="unbounded"/>
        </xs:sequence>
    </xs:complexType>
 
    <xs:complexType name="trigger">
        <xs:sequence>
            <xs:element name="pin_name" type="xs:string"/>
            <xs:any namespace="##other" processContents="skip"
                 minOccurs="0" maxOccurs="unbounded"/>
        </xs:sequence>
    </xs:complexType>
 
    <xs:complexType name="pin_description">
        <xs:sequence>
            <xs:element name="name" type="xs:string" />
            <xs:element name="streamtype_description" type="adtf:streamtype_description" />
            <xs:element name="direction" type="xs:int" />
            <xs:element name="description" type="xs:string" default=""/>
            <xs:any namespace="##other" processContents="skip"
                 minOccurs="0" maxOccurs="unbounded"/>
        </xs:sequence>
    </xs:complexType>
 
    <xs:complexType name="streamtype_description">
        <xs:sequence>
            <xs:element name="metatype_name" type="xs:string"/>
            <xs:element name="property_descriptions">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="property_description" type="adtf:property_description" minOccurs="0" maxOccurs="unbounded"/>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:any namespace="##other" processContents="skip"
                 minOccurs="0" maxOccurs="unbounded"/>
        </xs:sequence>
    </xs:complexType>
 
    <xs:complexType name="platform_dependency">
        <xs:sequence>
            <xs:element name="name" type="xs:string" />
            <xs:element name="libraries">
                <xs:complexType>
                       <xs:sequence>
                            <xs:element name="library_description" minOccurs="0" maxOccurs="unbounded" type="adtf:library_description" />
                       </xs:sequence>
                </xs:complexType>
            </xs:element>
            <xs:any namespace="##other" processContents="skip"
                 minOccurs="0" maxOccurs="unbounded"/>
        </xs:sequence>
    </xs:complexType>
 
    <xs:complexType name="library_description">
        <xs:sequence>
            <xs:element name="url" type="xs:string" />
            <xs:any namespace="##other" processContents="skip"
                 minOccurs="0" maxOccurs="unbounded"/>
        </xs:sequence>
    </xs:complexType>
 
</xs:schema>