4.3.3 ChannelMetadata Message
| Topic Version | 1 | Published | 10/16/2017 | |
| For Standard | ETPW20 v1 | |||
The producer replies to ChannelDescribe message with the following ChannelMetatdata message; below, see the tables that show mappings for channel and index metadata and the domain object XML.
// [460f515b-0491-4c89-b4a2-51de16df9bef] Message received at 2017-04-19 00:10:39.9483{
"protocol":1,
"messageType":2,
"correlationId":4,
"messageId":6,
"messageFlags":3}{
"channels": [ {
"channelUri": "eml://witsml20/Trajectory(0655e8cd-b590-4f89-9b30-2a897db562ec)",
"channelId": 0,
"indexes": [ {
"indexType": "Depth",
"uom": "ft",
"depthDatum": null,
"direction": "Increasing",
"mnemonic": "MD",
"description": "measured depth",
"uri": "eml://witsml20/Trajectory(0655e8cd-b590-4f89-9b30-2a897db562ec)/MD",
"customData": {},
"scale": 3,
"timeDatum": null } ],
"channelName": "Plan #2",
"dataType": "bytes",
"uom": "ft",
"startIndex": 0,
"endIndex": 0,
"description": "Plan #2",
"status": "Inactive",
"contentType": "application/x-witsml+xml;version=2.0;type=part_TrajectoryStation",
"source": "",
"measureClass": "",
"uuid": "0655e8cd-b590-4f89-9b30-2a897db562ec",
"customData": {},
"domainObject": {
"resource": {
"uri": "eml://witsml20/Trajectory(0655e8cd-b590-4f89-9b30-2a897db562ec)",
"contentType": "application/x-witsml+xml;version=2.0;type=Trajectory",
"name": "Plan #2",
"channelSubscribable": true,
"customData": {},
"resourceType": "DataObject",
"hasChildren": 0,
"uuid": "0655e8cd-b590-4f89-9b30-2a897db562ec",
"lastChanged": 1492571586409000,
"objectNotifiable": true },
"contentEncoding": "gzip",
"data": [ binary data truncated for readability ] } } ]}
Channel Metadata Record
|
Metadata Property |
Trajectory Property |
Example |
|---|---|---|
|
channelUri |
Trajectory URI |
eml://witsml20/Trajectory(0655e8cd-b590-4f89-9b30-2a897db562ec) |
|
channelId |
Unique channel identifier, per session |
0 |
|
channelName |
Trajectory.Citation.Title |
Plan #2 |
|
dataType |
The type of the channel data value |
bytes |
|
uom |
Trajectory.MDMin.Uom |
ft |
|
startIndex |
Trajectory.MDMin.Value |
0.0 |
|
endIndex |
Trajectory.MDMax.Value |
123.456 |
|
description |
Trajectory.Citation.Description or Trajectory.Citation.Title |
Plan #2 |
|
status |
Trajectory.GrowingStatus |
inactive |
|
contentType |
Trajectory Station Content Type |
application/x-witsml+xml;version=2.0;type=part_TrajectoryStation |
|
source |
The tag serviceCompany from the trajectory object. |
ACME Drilling Company |
|
measureClass |
NA |
|
|
uuid |
Trajectory.Uuid |
0655e8cd-b590-4f89-9b30-2a897db562ec |
|
indexes |
See Index Metadata Record below |
[ ] |
|
domainObject |
DataObject with Resource and Data |
{ } |
|
customData |
n/a |
{ } |
Index Metadata Record
|
Metadata Property |
Domain Object Property |
Example |
|---|---|---|
|
indexType |
ChannelIndexTypes.Depth |
Depth |
|
uom |
Trajectory.MdMn.uom |
ft |
|
depthDatum |
Trajectory.MdMn.datum |
KB |
|
direction |
IndexDirections.Increasing |
Increasing |
|
mnemonic |
n/a |
MD |
|
description |
n/a |
measured depth |
|
uri |
n/a |
eml://witsml20/Trajectory(0655e8cd-b590-4f89-9b30-2a897db562ec)/MD |
Domain Object XML
<Trajectory xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/terms/" schemaVersion="2.0" uuid="0655e8cd-b590-4f89-9b30-2a897db562ec" xmlns="http://www.energistics.org/energyml/data/witsmlv2">
<Citation xmlns="http://www.energistics.org/energyml/data/commonv2">
<Title>Plan #2</Title>
<Originator>PDS</Originator>
<Creation>2017-04-19T03:06:37.823Z</Creation>
<Format>PDS.WITSMLstudio.Desktop, Version=2017.1.0.0 </Format>
<LastUpdate>2017-04-19T03:13:06.409Z</LastUpdate>
</Citation>
<GrowingStatus>inactive</GrowingStatus>
<DTimTrajStart>2001-10-31T08:15:00.0000000+00:00</DTimTrajStart>
<DTimTrajEnd>2001-11-03T16:30:00.0000000+00:00</DTimTrajEnd>
<MdMn uom="ft" datum=”KB”>0</MdMn>
<MdMx uom="ft" datum=”KB”>0</MdMx>
<ServiceCompany>Anadrill</ServiceCompany>
<MagDeclUsed uom="dega">-4.038</MagDeclUsed>
<AziVertSect uom="dega">82.7</AziVertSect>
<DispNsVertSectOrig uom="ft">0</DispNsVertSectOrig>
<DispEwVertSectOrig uom="ft">0</DispEwVertSectOrig>
<Definitive>true</Definitive>
<Memory>true</Memory>
<FinalTraj>true</FinalTraj>
<AziRef>grid north</AziRef>
<Wellbore>
<ContentType xmlns="http://www.energistics.org/energyml/data/commonv2">application/x-witsml+xml;version=2.0;type=Wellbore</ContentType>
<Title xmlns="http://www.energistics.org/energyml/data/commonv2">A-42</Title>
<Uuid xmlns="http://www.energistics.org/energyml/data/commonv2">d7cb2b2b-b0c1-48d6-9d8b-5253f4507beb</Uuid>
<UuidAuthority xmlns="http://www.energistics.org/energyml/data/commonv2">B-01</UuidAuthority>
</Wellbore>
</Trajectory>