Refactors code and adds unit tests

[osm/MON.git] / osm_mon / collector / service.py

diff --git a/osm_mon/collector/service.py b/osm_mon/collector/service.py
new file mode 100644 (file)
index 0000000..0724822
--- /dev/null
+++ b/osm_mon/collector/service.py
@@ -0,0 +1,109 @@
+import logging
+import multiprocessing
+from typing import List
+
+from osm_mon.collector.infra_collectors.onos import OnosInfraCollector
+from osm_mon.collector.infra_collectors.openstack import OpenstackInfraCollector
+from osm_mon.collector.metric import Metric
+from osm_mon.collector.utils import CollectorUtils
+from osm_mon.collector.vnf_collectors.juju import VCACollector
+from osm_mon.collector.vnf_collectors.openstack import OpenstackCollector
+from osm_mon.collector.vnf_collectors.vio import VIOCollector
+from osm_mon.collector.vnf_collectors.vmware import VMwareCollector
+from osm_mon.core.common_db import CommonDbClient
+from osm_mon.core.config import Config
+
+log = logging.getLogger(__name__)
+
+VIM_COLLECTORS = {
+    "openstack": OpenstackCollector,
+    "vmware": VMwareCollector,
+    "vio": VIOCollector
+}
+VIM_INFRA_COLLECTORS = {
+    "openstack": OpenstackInfraCollector
+}
+SDN_INFRA_COLLECTORS = {
+    "onos": OnosInfraCollector
+}
+
+
+class CollectorService:
+    def __init__(self, config: Config):
+        self.conf = config
+        self.common_db = CommonDbClient(self.conf)
+        self.queue = multiprocessing.Queue()
+
+    def _collect_vim_metrics(self, vnfr: dict, vim_account_id: str):
+        # TODO(diazb) Add support for aws
+        vim_type = CollectorUtils.get_vim_type(vim_account_id)
+        if vim_type in VIM_COLLECTORS:
+            collector = VIM_COLLECTORS[vim_type](self.conf, vim_account_id)
+            metrics = collector.collect(vnfr)
+            for metric in metrics:
+                self.queue.put(metric)
+        else:
+            log.debug("vimtype %s is not supported.", vim_type)
+
+    def _collect_vim_infra_metrics(self, vim_account_id: str):
+        vim_type = CollectorUtils.get_vim_type(vim_account_id)
+        if vim_type in VIM_INFRA_COLLECTORS:
+            collector = VIM_INFRA_COLLECTORS[vim_type](self.conf, vim_account_id)
+            metrics = collector.collect()
+            for metric in metrics:
+                self.queue.put(metric)
+        else:
+            log.debug("vimtype %s is not supported.", vim_type)
+
+    def _collect_sdnc_infra_metrics(self, sdnc_id: str):
+        common_db = CommonDbClient(self.conf)
+        sdn_type = common_db.get_sdnc(sdnc_id)['type']
+        if sdn_type in SDN_INFRA_COLLECTORS:
+            collector = SDN_INFRA_COLLECTORS[sdn_type](self.conf, sdnc_id)
+            metrics = collector.collect()
+            for metric in metrics:
+                self.queue.put(metric)
+        else:
+            log.debug("sdn_type %s is not supported.", sdn_type)
+
+    def _collect_vca_metrics(self, vnfr: dict):
+        log.debug('_collect_vca_metrics')
+        log.debug('vnfr: %s', vnfr)
+        vca_collector = VCACollector(self.conf)
+        metrics = vca_collector.collect(vnfr)
+        for metric in metrics:
+            self.queue.put(metric)
+
+    def collect_metrics(self) -> List[Metric]:
+        vnfrs = self.common_db.get_vnfrs()
+        processes = []
+        for vnfr in vnfrs:
+            nsr_id = vnfr['nsr-id-ref']
+            vnf_member_index = vnfr['member-vnf-index-ref']
+            vim_account_id = self.common_db.get_vim_account_id(nsr_id, vnf_member_index)
+            p = multiprocessing.Process(target=self._collect_vim_metrics,
+                                        args=(vnfr, vim_account_id))
+            processes.append(p)
+            p.start()
+            p = multiprocessing.Process(target=self._collect_vca_metrics,
+                                        args=(vnfr,))
+            processes.append(p)
+            p.start()
+        vims = self.common_db.get_vim_accounts()
+        for vim in vims:
+            p = multiprocessing.Process(target=self._collect_vim_infra_metrics,
+                                        args=(vim['_id'],))
+            processes.append(p)
+            p.start()
+        sdncs = self.common_db.get_sdncs()
+        for sdnc in sdncs:
+            p = multiprocessing.Process(target=self._collect_sdnc_infra_metrics,
+                                        args=(sdnc['_id'],))
+            processes.append(p)
+            p.start()
+        for process in processes:
+            process.join(timeout=10)
+        metrics = []
+        while not self.queue.empty():
+            metrics.append(self.queue.get())
+        return metrics