<?xml version="1.0" encoding="utf-8" ?>
<xs:schema elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">
	<xs:element type="jfrAgentType" name="jfragent" />

	<xs:complexType name="jfrAgentType">
		<xs:all>
			<xs:element type="configType" name="config" minOccurs="0">
				<xs:annotation>
					<xs:documentation>Global configuration options</xs:documentation>
				</xs:annotation>
			</xs:element>
			<xs:element type="eventsType" name="events" minOccurs="0" />
		</xs:all>
	</xs:complexType>

	<xs:complexType name="configType">
		<xs:all>
			<xs:element type="xs:string" name="classprefix" minOccurs="0">
				<xs:annotation>
					<xs:documentation>This is the prefix to use when generating event class names</xs:documentation>
				</xs:annotation>
			</xs:element>
			<xs:element type="xs:boolean" name="allowtostring" minOccurs="0">
				<xs:annotation>
					<xs:documentation>
						Will allow the recording of arrays and object parameters as Strings. This will cause toString to
						be called for array elements and objects other than strings, which in turn can cause trouble if
						the toString method is badly implemented. Use with care.
					</xs:documentation>
				</xs:annotation>
			</xs:element>
			<xs:element type="xs:boolean" name="allowconverter" minOccurs="0">
				<xs:annotation>
					<xs:documentation>
						Allows converters to be used. If a converter is badly implemented, you are on your own.
					</xs:documentation>
				</xs:annotation>
			</xs:element>
		</xs:all>
	</xs:complexType>

	<xs:complexType name="eventsType">
		<xs:sequence>
			<xs:element type="eventType" name="event" maxOccurs="unbounded" minOccurs="0" />
		</xs:sequence>
	</xs:complexType>

	<xs:complexType name="eventType">
		<xs:all>
			<xs:element type="xs:string" name="label" />
			<xs:element type="classType" name="class" />
			<xs:element type="methodType" name="method" />
			<xs:element type="xs:string" name="description" minOccurs="0" />
			<xs:element type="pathType" name="path" minOccurs="0" />
			<xs:element type="xs:boolean" name="stacktrace" minOccurs="0" />
			<xs:element type="xs:boolean" name="rethrow" minOccurs="0" />
			<xs:element type="locationType" name="location" minOccurs="0" />
			<xs:element type="fieldsType" name="fields" minOccurs="0" />
		</xs:all>
		<xs:attribute type="xs:string" name="id" use="required" />
	</xs:complexType>

	<xs:simpleType name="classType">
		<xs:annotation>
			<xs:documentation>the fully qualified class name (FQCN) of the class to be transformed</xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:normalizedString">
			<xs:pattern value="([a-zA-Z_$][a-zA-Z0-9_$]*\.)*([a-zA-Z_$][a-zA-Z0-9_$]*)" />
			<xs:whiteSpace value="collapse" />
		</xs:restriction>
	</xs:simpleType>

	<xs:complexType name="methodType">
		<xs:all>
			<xs:element type="methodNameType" name="name" />
			<xs:element type="descriptorType" name="descriptor" />
			<xs:element type="parametersType" name="parameters" minOccurs="0" />
			<xs:element type="returnValueType" name="returnvalue" minOccurs="0" />
		</xs:all>
	</xs:complexType>

	<xs:simpleType name="methodNameType">
		<xs:restriction base="xs:normalizedString">
			<xs:pattern value="[a-zA-Z_$][a-zA-Z0-9_$]*" />
			<xs:whiteSpace value="collapse" />
		</xs:restriction>
	</xs:simpleType>

	<xs:simpleType name="descriptorType">
		<xs:annotation>
			<xs:documentation>see §4.3.3 in Java Virtual Machine Specification</xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:normalizedString">
			<xs:pattern value="\((\[*([BCDFIJSZ]|L([a-zA-Z_$][a-zA-Z0-9_$]*/)*[a-zA-Z_$][a-zA-Z0-9_$]*;))*\)(V|\[*([BCDFIJSZ]|L([a-zA-Z_$][a-zA-Z0-9_$]*/)*[a-zA-Z_$][a-zA-Z0-9_$]*;))" />
			<xs:whiteSpace value="collapse" />
		</xs:restriction>
	</xs:simpleType>

	<xs:complexType name="parametersType">
		<xs:annotation>
			<xs:documentation>only if we allow toString</xs:documentation>
		</xs:annotation>
		<xs:sequence>
			<xs:element type="parameterType" name="parameter" maxOccurs="unbounded" minOccurs="0" />
		</xs:sequence>
	</xs:complexType>

	<xs:complexType name="parameterType">
		<xs:all>
			<xs:element type="xs:string" name="name" />
			<xs:element type="xs:string" name="description" minOccurs="0" />
			<xs:element type="contentTypeType" name="contenttype" minOccurs="0" />
			<xs:element type="relationKeyType" name="relationkey" minOccurs="0" />
			<xs:element type="converterType" name="converter" minOccurs="0" />
		</xs:all>
		<xs:attribute type="xs:nonNegativeInteger" name="index" use="required" />
	</xs:complexType>

	<xs:simpleType name="contentTypeType">
		<xs:annotation>
			<xs:documentation>see com.oracle.jrockit.jfr.ContentType</xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:normalizedString">
			<xs:enumeration value="None" />
			<xs:enumeration value="Bytes" />
			<xs:enumeration value="Timestamp" />
			<xs:enumeration value="Millis" />
			<xs:enumeration value="Nanos" />
			<xs:enumeration value="Ticks" />
			<xs:enumeration value="Address" />
			<xs:enumeration value="OSThread" />
			<xs:enumeration value="JavaThread" />
			<xs:enumeration value="StackTrace" />
			<xs:enumeration value="Class" />
			<xs:enumeration value="Percentage" />
			<xs:whiteSpace value="collapse" />
		</xs:restriction>
	</xs:simpleType>

	<xs:simpleType name="relationKeyType">
		<xs:annotation>
			<xs:documentation>
				a unique URI signifying a relationship between different events based on the values of specific
				fields
			</xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:anyURI" />
	</xs:simpleType>

	<xs:simpleType name="converterType">
		<xs:annotation>
			<xs:documentation>the fully qualified class name (FQCN) of the converter used</xs:documentation>
		</xs:annotation>
		<xs:restriction base="classType" />
	</xs:simpleType>

	<xs:complexType name="returnValueType">
		<xs:annotation>
			<xs:documentation>This will only work if we allow toString</xs:documentation>
		</xs:annotation>
		<xs:all>
			<xs:element type="xs:string" name="description" minOccurs="0" />
			<xs:element type="contentTypeType" name="contenttype" minOccurs="0" />
			<xs:element type="relationKeyType" name="relationkey" minOccurs="0" />
			<xs:element type="converterType" name="converter" minOccurs="0" />
		</xs:all>
	</xs:complexType>

	<xs:simpleType name="pathType">
		<xs:restriction base="xs:normalizedString">
			<xs:pattern value="([^/]+/)*([^/]*)" />
			<xs:whiteSpace value="collapse" />
		</xs:restriction>
	</xs:simpleType>

	<xs:simpleType name="locationType">
		<xs:annotation>
			<xs:documentation>location {ENTRY, EXIT, WRAP}</xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:normalizedString">
			<xs:enumeration value="ENTRY" />
			<xs:enumeration value="EXIT" />
			<xs:enumeration value="WRAP" />
			<xs:whiteSpace value="collapse" />
		</xs:restriction>
	</xs:simpleType>

	<xs:complexType name="fieldsType">
		<xs:sequence>
			<xs:element type="fieldType" name="field" maxOccurs="unbounded" minOccurs="0" />
		</xs:sequence>
	</xs:complexType>

	<xs:complexType name="fieldType">
		<xs:all>
			<xs:element type="xs:string" name="name" />
			<xs:element type="expressionType" name="expression" />
			<xs:element type="xs:string" name="description" minOccurs="0" />
			<xs:element type="contentTypeType" name="contenttype" minOccurs="0" />
			<xs:element type="relationKeyType" name="relationkey" minOccurs="0" />
			<xs:element type="converterType" name="converter" minOccurs="0" />
		</xs:all>
	</xs:complexType>

	<xs:simpleType name="expressionType">
		<xs:annotation>
			<xs:documentation>
				an expression in a subset of primary expressions (see §15.8 in Java Language Specification) to be
				evaluated
			</xs:documentation>
		</xs:annotation>
		<xs:restriction base="xs:normalizedString">
			<xs:pattern value="([a-zA-Z_$][a-zA-Z0-9_$]*\.)*([a-zA-Z_$][a-zA-Z0-9_$]*)(\.[a-zA-Z_$][a-zA-Z_$]*)*" />
			<xs:whiteSpace value="collapse" />
		</xs:restriction>
	</xs:simpleType>
</xs:schema>