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authorRyan Goulding <ryandgoulding@gmail.com>2017-08-17 16:15:39 -0400
committerRyan Goulding <ryandgoulding@gmail.com>2017-09-06 09:05:17 -0400
commitaf22e3dbddd5b372e815970ff43cc73e29135218 (patch)
treeb437d5a2853cab8d0682256e518b9c204cf1b7db /dblib/provider/src/main/resources
parentb6ad62d01b1045ff03c03aa05ee1beeaabc633c7 (diff)
Fix service registration for SDNC
Addresses the inherit race conditions associated with the BundleActivator abstraction. From lessons learned in OpenDaylight project, dependency injection and service injection via Aries Blueprint is faster, more deterministic, and has better error messaging than using BundleActivator(s). This change addresses several aspects: 1) DBLIBResourceActivator is changed to DBLIBResourceProvider. This was done in order to imply that this is no longer an Activator or subclass of an Activator. The class is a POJO. 2) DBLIBResourceProvider is split from a single monolithic method into several more manageable and better documented methods. 3) Documentation surrounding the resolution of the DB properties is added so that a developer can more easily identify the strategy (priority) used for resolving properties. 4) dblib-blueprint.xml is added. This is used to register the configuration bean (DBLIBResourceProvider), and pass it as an argument to the actual Service (DBLIBResourceManager). 5) Tests are added to test the functionality and resolution of the properties file loading. Issue-Id: SDNC-54 Change-Id: Ie9d5fb423ae7a67e9aec026c78321537399cc308 Signed-off-by: Ryan Goulding <ryandgoulding@gmail.com>
Diffstat (limited to 'dblib/provider/src/main/resources')
-rw-r--r--dblib/provider/src/main/resources/org/opendaylight/blueprint/dblib-blueprint.xml13
1 files changed, 13 insertions, 0 deletions
diff --git a/dblib/provider/src/main/resources/org/opendaylight/blueprint/dblib-blueprint.xml b/dblib/provider/src/main/resources/org/opendaylight/blueprint/dblib-blueprint.xml
new file mode 100644
index 000000000..ee3e0f033
--- /dev/null
+++ b/dblib/provider/src/main/resources/org/opendaylight/blueprint/dblib-blueprint.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0"
+ xmlns:odl="http://opendaylight.org/xmlns/blueprint/v1.0.0"
+ odl:use-default-for-reference-types="true">
+
+ <bean id="provider" class="org.onap.ccsdk.sli.core.dblib.DBLIBResourceProvider" />
+
+ <bean id="dbResourceManager" class="org.onap.ccsdk.sli.core.dblib.DBResourceManager">
+ <argument ref="provider" />
+ </bean>
+ <service ref="dbResourceManager" interface="org.onap.ccsdk.sli.core.dblib.DbLibService" />
+
+</blueprint> \ No newline at end of file