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  1. Set up a development environment as described in AAI Developer Environment Setup - Casablanca

  2. This document will show editing schema files with Eclipse, but Eclipse is not required.

  3. In this example, we will add 2 new attributes to the cloud-region node type and a new node type called "new-widget" which will be a child node of "cloud-region"

  4. Adding a new attribute to "cloud-region"
  5. Open aai/aai-common, aai-schema/src/main/resources/oxm/aai_oxm_v11.xml


  6. Add the following attributes between "complexName" and "resourceVersion":

    <xml-element java-attribute="complexName" name="complex-name" type="java.lang.String">
    <xml-properties>
    <xml-property name="description" value="complex name for cloud-region instance. NOTE - THIS FIELD IS NOT CORRECTLY POPULATED." />
    </xml-properties>
    </xml-element>
    <xml-element java-attribute="newAttributeForDemo" name="new-attribute-for-demo" required="true" type="java.lang.String">
    <xml-properties>
    <xml-property name="description" value="Example new attribute for cloud-region instance. " />
    </xml-properties>
    </xml-element>
    <xml-element java-attribute="numberAttributeForDemo" name="number-attribute-for-demo" required="true" type="java.lang.Integer">
    <xml-properties>
    <xml-property name="description" value="Example number attribute for cloud-region instance. " />
    </xml-properties>
    </xml-element>
    <xml-element java-attribute="resourceVersion" name="resource-version" type="java.lang.String">
    <xml-properties>
    <xml-property name="description" value="Used for optimistic concurrency. Must be empty on create, valid on update and delete." />
    </xml-properties>
    </xml-element>

  7. Save the file, and rebuild the libraries and microservices:

    here's my example file: aai_oxm_v11.xml
    1. Rebuild aai-common first:
    2. $ cd ~/LF/AAI/aai-common
    3. $ mvn clean install
      Should result in BUILD SUCCESS
    4. $ cd ~/LF/AAI/graphadmin
    5. $ mvn clean install -o
      Should result in BUILD SUCCESS
    6. $ cd ~/LF/AAI/resources
    7. $ mvn clean install -o
      Should result in BUILD SUCCESS
    8. $ cd ~/LF/AAI/traversal
      mvn clean install -o
    9. Should result in BUILD SUCCESS


  8. Run GenTester, using the target dir under aai-resources:

    $ cd ~/LF/AAI/graphadmin;

    java -DAJSC_HOME=. -DBUNDLECONFIG_DIR=src/main/resources/ -Dloader.main=org.onap.aai.schema.GenTester -Dloader.path=./src/main/resources -Dschema.ingest.file=src/main/resources/application.properties -jar target/aai-graphadmin-*.jar

    You should see the following output:

        ---- NOTE --- about to open graph (takes a little while)--------;

    -- loading schema into JanusGraph

    -- loading schema into JanusGraph

    -- Loading new schema elements into JanusGraph --

    -- graph commit

    -- graph shutdown


    You can check the logs to see if the graph elements were created successfully and grep for your property
    cd logs/createDBSchema/;
    grep 'complex-name' metrics.log

    2018-12-06T04:43:18.061+0000|2018-12-06T04:43:42.960+0000|449b8583-54c1-42bf-8ada-5b75c52d7a13||main      ||AAI|AAI-TOOLS|AAI|main|COMPLETE|0|||INFO||127.0.1.1|24899|localhost||org.onap.a
    ai.dbgen.SchemaGenerator||||||||co=DBGenTester:Creating PropertyKey: [complex-name], [String], [SINGLE]
    2018-12-06T04:43:18.061+0000|2018-12-06T04:43:42.960+0000|449b8583-54c1-42bf-8ada-5b75c52d7a13||main      ||AAI|AAI-TOOLS|AAI|main|COMPLETE|0|||INFO||127.0.1.1|24899|localhost||org.onap.a
    ai.dbgen.SchemaGenerator||||||||co=DBGenTester:Add index for PropertyKey: [complex-name]

  9. Start the "resources" microservice
    1. Resources runs on port 8447.  Go to the resources directory
      $ cd ~/LF/AAI/resources
    2. Set the debug port to 9447
      $ export MAVEN_OPTS="-Xms1024m -Xmx5120m -XX:PermSize=2024m -Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,address=9447,server=y,suspend=n"
    3. Start the microservice
      $ mvn -pl aai-resources -P runAjsc

  10. Start the "traversal" microservice
    1. Traversal runs on port 8446.  Go to the traversal directory
      $ cd ~/LF/AAI/traversal
    2. Set the debug port to 9446
      $ export MAVEN_OPTS="-Xms1024m -Xmx5120m -XX:PermSize=2024m -Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,address=9446,server=y,suspend=n"
    3. Start the microservice
      $ mvn -pl aai-traversal -PrunAjsc
      Should see something like this: Traversal Microservice Started

  11. Start the "graphadmin" microservice
    1. Graphadmin runs on port 8449.  Go to the graphadmin directory
      $ cd ~/LF/AAI/graphadmin
    2. Set the debug port to 9449
      $ export MAVEN_OPTS="-Xms1024m -Xmx5120m -XX:PermSize=2024m -Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,address=9449,server=y,suspend=n"
    3. Start the microservice
      $ mvn -PrunAjsc
      Should see something like this: GraphAdmin Microservice Started
  12. Get an example cloud-region object, postman: Cloud-Region Example.postman_collection.json

    You should see the new attributes on the example object, as highlighted in the red rectangle above

  13. Copy and paste the example object and PUT it to persist the new attributes.  Use this postman collection thru step 15

  14. Check the object by doing a GET: GET Cloud-Region (no depth param) in postman collection
  15. Add the depth parameter: GET Cloud-Region (depth = all) in postman collection



    1. This indicates that the schema has been updated with the new attributes and they are making it to the database

  16. Clear the cloud region and then delete it by using "Clear Cloud-Region" and "Delete Cloud-Region"
    1. note: you will need to perform a GET each time and update the resource version of the cloud-region in the XML payload for the clear, and do the GET again and update the resource-version QueryParam to perform
      the delete

  17. Run PUT Cloud-Region - missing attr.  This will try to PUT the object without the required attribute we defined in the schema, and the response will look like this:

    <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
    <Fault>
    <requestError>
    <serviceException>
    <messageId>SVC3000</messageId>
    <text>Invalid input performing %1 on %2 (msg=%3) (ec=%4)</text>
    <variables>
    <variable>PUT</variable>
    <variable>v11/cloud-infrastructure/cloud-regions/cloud-region/example-cloud-owner-val-44086/example-cloud-region-id-val-67393</variable>
    <variable>Invalid input performing %1 on %2:Missing required property: new-attribute-for-demo</variable>
    <variable>ERR.5.2.3000</variable>
    </variables>
    </serviceException>
    </requestError>
    </Fault>

  18. Adding a new node type.  First, add the container under the top-level inventory category.  Adding "newWidgets" to "Network" so the URI will be "aai/v11/network/new-widgets/new-widget/{new-widget-name}"

    <java-type name="Network">
    <xml-properties>
    <xml-property name="description" value="Namespace for network inventory resources." />
    </xml-properties>
    <xml-root-element name="network" />
    <java-attributes>
    <xml-element java-attribute="logicalLinks" name="logical-links" type="inventory.aai.onap.org.v11.LogicalLinks" />
    <xml-element java-attribute="sitePairSets" name="site-pair-sets" type="inventory.aai.onap.org.v11.SitePairSets" />
    <xml-element java-attribute="vpnBindings" name="vpn-bindings" type="inventory.aai.onap.org.v11.VpnBindings" />
    <xml-element java-attribute="vplsPes" name="vpls-pes" type="inventory.aai.onap.org.v11.VplsPes" />
    <xml-element java-attribute="multicastConfigurations" name="multicast-configurations" type="inventory.aai.onap.org.v11.MulticastConfigurations" />
    <xml-element java-attribute="vces" name="vces" type="inventory.aai.onap.org.v11.Vces" />
    <xml-element java-attribute="vpes" name="vpes" type="inventory.aai.onap.org.v11.Vpes" />
    <xml-element java-attribute="vnfcs" name="vnfcs" type="inventory.aai.onap.org.v11.Vnfcs" />
    <xml-element java-attribute="l3Networks" name="l3-networks" type="inventory.aai.onap.org.v11.L3Networks" />
    <xml-element java-attribute="networkPolicies" name="network-policies" type="inventory.aai.onap.org.v11.NetworkPolicies" />
    <xml-element java-attribute="genericVnfs" name="generic-vnfs" type="inventory.aai.onap.org.v11.GenericVnfs" />
    <xml-element java-attribute="lagLinks" name="lag-links" type="inventory.aai.onap.org.v11.LagLinks" />
    <xml-element java-attribute="newvces" name="newvces" type="inventory.aai.onap.org.v11.Newvces" />
    <xml-element java-attribute="pnfs" name="pnfs" type="inventory.aai.onap.org.v11.Pnfs" />
    <xml-element java-attribute="physicalLinks" name="physical-links" type="inventory.aai.onap.org.v11.PhysicalLinks" />
    <xml-element java-attribute="newWidgets" name="new-widgets" type="inventory.aai.onap.org.v11.NewWidgets" />
    <xml-element java-attribute="ipsecConfigurations" name="ipsec-configurations" type="inventory.aai.onap.org.v11.IpsecConfigurations" />
    <xml-element java-attribute="routeTableReferences" name="route-table-references" type="inventory.aai.onap.org.v11.RouteTableReferences" />
    <xml-element java-attribute="instanceGroups" name="instance-groups" type="inventory.aai.onap.org.v11.InstanceGroups" />
    <xml-element java-attribute="zones" name="zones" type="inventory.aai.onap.org.v11.Zones" />
    </java-attributes>
    </java-type>



  19. Set up the "NewWidgets" java type:

    <java-type name="NewWidgets">
    <xml-properties>
    <xml-property name="description" value="Collection of new Widgets" />
    </xml-properties>
    <xml-root-element name="new-widgets" />
    <java-attributes>
    <xml-element container-type="java.util.ArrayList" java-attribute="newWidget" name="new-widget" type="inventory.aai.onap.org.v11.NewWidget" />
    </java-attributes>
    </java-type>

  20. Set up the NewWidget java type:

    <java-type name="NewWidget">
    <xml-root-element name="new-widget" />
    <java-attributes>
    <xml-element java-attribute="newWidgetName" name="new-widget-name" required="true" type="java.lang.String" xml-key="true">
    <xml-properties>
    <xml-property name="description" value="e.g.,awesome-new-widget, terrific-new-widget" />
    </xml-properties>
    </xml-element>
    <xml-element java-attribute="newWidgetType" name="new-widget-type" required="true" type="java.lang.String">
    <xml-properties>
    <xml-property name="description" value="Type of new Widget, e.g., fantastic, amazing" />
    </xml-properties>
    </xml-element>
    <xml-element java-attribute="resourceVersion" name="resource-version" type="java.lang.String">
    <xml-properties>
    <xml-property name="description" value="Used for optimistic concurrency. Must be empty on create, valid on update and delete." />
    </xml-properties>
    </xml-element>
    <xml-element java-attribute="modelInvariantId" name="model-invariant-id" type="java.lang.String">
    <xml-properties>
    <xml-property name="description" value="the ASDC model id for this resource or service model." />
    <xml-property name="visibility" value="deployment" />
    <xml-property name="requires" value="model-version-id" />
    <xml-property name="dbAlias" value="model-invariant-id-local" />
    </xml-properties>
    </xml-element>
    <xml-element java-attribute="modelVersionId" name="model-version-id" type="java.lang.String">
    <xml-properties>
    <xml-property name="description" value="the ASDC model version for this resource or service model." />
    <xml-property name="visibility" value="deployment" />
    <xml-property name="requires" value="model-invariant-id" />
    <xml-property name="dbAlias" value="model-version-id-local" />
    </xml-properties>
    </xml-element>
    <xml-element java-attribute="newWidgetId" name="new-widget-id" type="java.lang.String">
    <xml-properties>
    <xml-property name="description" value="ID of the newWidget" />
    </xml-properties>
    </xml-element>
    <xml-element java-attribute="relationshipList" name="relationship-list" type="inventory.aai.onap.org.v11.RelationshipList" />
    </java-attributes>
    <xml-properties>
    <xml-property name="description" value="New widgets are the best widgets. Our new widgets are really, really great."/>
    <xml-property name="indexedProps" value="new-widget-id,new-widget-name,model-invariant-id,model-version-id" />
    <xml-property name="uniqueProps" value="new-widget-id" />
    <xml-property name="container" value="new-widgets" />
    <xml-property name="namespace" value="network" />
    <xml-property name="searchable" value="new-widget-name,new-widget-id" />
    </xml-properties>
    </java-type>

  21. Save the file, and rebuild the libraries and microservices:

    here's my example file: aai_oxm_v11.xml
    1. Rebuild aai-common first:
    2. $ cd ~/LF/AAI/aai-common
    3. $ mvn clean install
      Should result in BUILD SUCCESS
    4. $ cd ~/LF/AAI/graphadmin
    5. $ mvn clean install -o
      Should result in BUILD SUCCESS
    6. $ cd ~/LF/AAI/resources
    7. $ mvn clean install -o
      Should result in BUILD SUCCESS
    8. $ cd ~/LF/AAI/traversal
      mvn clean install -o
    9. Should result in BUILD SUCCESS

  22. Run GenTester, using the target dir under aai-resources:

    $ cd ~/LF/AAI/graphadmin;

    java -DAJSC_HOME=. -DBUNDLECONFIG_DIR=src/main/resources/ -Dloader.main=org.onap.aai.schema.GenTester -Dloader.path=./src/main/resources -Dschema.ingest.file=src/main/resources/application.properties -jar target/aai-graphadmin-*.jar

    You should see the following output:

        ---- NOTE --- about to open graph (takes a little while)--------;

    -- loading schema into JanusGraph

    -- loading schema into JanusGraph

    -- Loading new schema elements into JanusGraph --

    -- graph commit

    -- graph shutdown

    You can check the logs to see if the graph elements were created successfully and grep for your propertycd logs/createDBSchema/;
    grep 'new-widget-name' metrics.log

    Creating PropertyKey: [new-widget-name], [String], [SINGLE]
    [DEV: 2017-Jul-28 08:44:12,287][INFO ][main ]Creating PropertyKey: [new-widget-name], [String], [SINGLE]
    Add index for PropertyKey: [new-widget-name]
    [DEV: 2017-Jul-28 08:44:12,289][INFO ][main ]Add index for PropertyKey: [new-widget-name]
    Creating PropertyKey: [new-widget-type], [String], [SINGLE]
    [DEV: 2017-Jul-28 08:44:12,291][INFO ][main ]Creating PropertyKey: [new-widget-type], [String], [SINGLE]
    No index added for PropertyKey: [new-widget-type]
    [DEV: 2017-Jul-28 08:44:12,501][INFO ][main ]No index added for PropertyKey: [new-widget-type]
    PropertyKey [resource-version] already existed in the DB.
    PropertyKey [model-invariant-id] already existed in the DB.
    PropertyKey [model-version-id] already existed in the DB.
    Creating PropertyKey: [new-widget-id], [String], [SINGLE]
    [DEV: 2017-Jul-28 08:44:12,501][INFO ][main ]Creating PropertyKey: [new-widget-id], [String], [SINGLE]

  23. Start the "resources" microservice
    1. Resources runs on port 8447.  Go to the resources directory
      $ cd ~/LF/AAI/resources
    2. Set the debug port to 9447
      $ export MAVEN_OPTS="-Xms1024m -Xmx5120m -XX:PermSize=2024m -Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,address=9447,server=y,suspend=n"
    3. Start the microservice
      $ mvn -pl aai-resources -P runAjsc
      Should see something like this: Resources Microservice Started

  24. Start the "traversal" microservice
    1. Traversal runs on port 8446.  Go to the traversal directory
      $ cd ~/LF/AAI/traversal
    2. Set the debug port to 9446
      $ export MAVEN_OPTS="-Xms1024m -Xmx5120m -XX:PermSize=2024m -Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,address=9447,server=y,suspend=n"
    3. Start the microservice
      $ mvn -pl aai-traversal -P runAjsc 
      Should see something like this: Traversal Microservice Started

  25. Start the "graphadmin" microservice
    1. Graphadmin runs on port 8449.  Go to the graphadmin directory
      $ cd ~/LF/AAI/graphadmin
    2. Set the debug port to 9449
      $ export MAVEN_OPTS="-Xms1024m -Xmx5120m -XX:PermSize=2024m -Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,address=9449,server=y,suspend=n"
    3. Start the microservice
      $ mvn -PrunAjsc
      Should see something like this: GraphAdmin Microservice Started
  26. Get an example newWidget using "New Widget Example" (find these examples in this postman collection: New-Widget Example.postman_collection.json)
  27. Copy the new widget and PUT it: (PUT New Widget)

  28. Success!  We have updated an existing object type and added a new object type.  Next, we will set up an edge between the CloudRegion and the NewWidget

  29. Open DbEdgeRules_v11.json
    File is aai-common/aai-core/src/main/resources/dbedgerules/DbEdgeRules_v11.json
  30. Add a new EdgeRule, allowing an edge between the CloudRegion and NewWidget:

            {

                "from": "cloud-region",

                "to": "tenant",

                "label": "has",

                "direction": "OUT",

                "multiplicity": "One2Many",

                "contains-other-v": "${direction}",

                "delete-other-v": "NONE",

                "SVC-INFRA": "!${direction}",

                "prevent-delete": "${direction}"

            },

            {

                "from": "cloud-region",

                "to": "new-widget",

                "label": "has",

                "direction": "OUT",

                "multiplicity": "One2Many",

                "contains-other-v": "NONE",

                "delete-other-v": "NONE",

                "SVC-INFRA": "NONE",

                "prevent-delete": "NONE"

            },


    This means cloud-region connects to new-widget, edge label is "has", it's an OUT edge, one cloud region can have multiple edges to new-widgets,

    cloud-region does not contain new-widget, new-widget will not be deleted when the cloud-region connected to it is deleted, it is not SVC_INFRA type, and having an edge to a new-widget will not prevent deletion of the cloud-region.



  31. Save the file, and rebuild aai-common, resources, and traversal.  Start resources and traversal microservices.

  32. Create a cloud region with a relationship to the new-widget that was created earlier: (PUT Cloud-Region related to New-Widget)

  33. GET the new-widget object: (GET New Widget)



  34. Notice that when GETting the new-widget object it shows the relationship to the cloud-region.

    We have successfully modified the schema and edge rules to update an existing type, create a new type, and define an edge relationship which allows for a new-widget type to be connected to a cloud-region.  




2 Comments

  1. Jimmy Forsyth Venkata Harish Kajur Pavel Paroulek ,

    Have been discussing with Kanagaraj Manickam some problems in this tutorial page.

    Under step 7, the microservices are rebuilt after editing the OXM files, but the new schema is not visible inside the resources, traversal microservices because these are pulling aai-common from the nexus repo rather than the freshly built local SNAPSHOT file.

    I think the build commands need to have these override parameters (with appropriate version numbers):

    (cd resources ; mvn clean install -Daai-schema.version=1.3.3-SNAPSHOT -Daai.core.version=1.3.3-SNAPSHOT)
    1. Note that steps 7 and 21 use "mvn -o" option which means "offline" mode. I assume this is to encourage it to use the locally built JARs (i.e. aai-common) rather than pulling from nexus, however, this doesn't work for the other JARs that actually do need to be pulled from nexus.