OAM NF Adopter REST PM

[oam/nf-oam-adopter.git] / ves-nf-oam-adopter / ves-nf-oam-adopter-pm-manager / src / main / java / org / o / ran / oam / nf / oam / adopter / pm / rest / manager / AdaptersDeployer.java

diff --git a/ves-nf-oam-adopter/ves-nf-oam-adopter-pm-manager/src/main/java/org/o/ran/oam/nf/oam/adopter/pm/rest/manager/AdaptersDeployer.java b/ves-nf-oam-adopter/ves-nf-oam-adopter-pm-manager/src/main/java/org/o/ran/oam/nf/oam/adopter/pm/rest/manager/AdaptersDeployer.java
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+/*
+ *  ============LICENSE_START=======================================================
+ *  O-RAN-SC
+ *  ================================================================================
+ *  Copyright © 2021 AT&T Intellectual Property. All rights reserved.
+ *  ================================================================================
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *  ============LICENSE_END=========================================================
+ */
+
+package org.o.ran.oam.nf.oam.adopter.pm.rest.manager;
+
+import static org.eclipse.jdt.annotation.Checks.requireNonNull;
+
+import com.google.common.collect.ImmutableList;
+import java.time.ZoneId;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.concurrent.ConcurrentHashMap;
+import org.o.ran.oam.nf.oam.adopter.pm.rest.manager.api.PerformanceManagementAdaptersDeployer;
+import org.o.ran.oam.nf.oam.adopter.pm.rest.manager.exceptions.AlreadyPresentException;
+import org.o.ran.oam.nf.oam.adopter.pm.rest.manager.exceptions.NotFoundException;
+import org.o.ran.oam.nf.oam.adopter.pm.rest.manager.pojos.Adapter;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+@Service
+public final class AdaptersDeployer implements PerformanceManagementAdaptersDeployer, AutoCloseable {
+
+    private static final Logger LOG = LoggerFactory.getLogger(AdaptersDeployer.class);
+
+    private final PerformanceManagementRestAgentFactory pmRestAgentFactory;
+    private final Map<String, PerformanceManagementRestAgent> adapters = new ConcurrentHashMap<>();
+
+    @Autowired
+    public AdaptersDeployer(final PerformanceManagementRestAgentFactory pmRestAgentFactory) {
+        this.pmRestAgentFactory = pmRestAgentFactory;
+    }
+
+    @Override
+    public synchronized void create(final String hostIpAddress, final String username, final String password)
+            throws AlreadyPresentException {
+        LOG.info("Create device PM adapter {}", hostIpAddress);
+        if (adapters.get(hostIpAddress) != null) {
+            throw new AlreadyPresentException(hostIpAddress);
+        }
+        final Adapter adapter =
+                Adapter.builder().username(username).password(password).hostIpAddress(hostIpAddress).build();
+        final PerformanceManagementRestAgent pmRestAgent =
+                pmRestAgentFactory.createPerformanceManagementRestAgent(adapter).blockingGet();
+        pmRestAgent.init();
+        adapters.put(hostIpAddress, pmRestAgent);
+    }
+
+    @Override
+    public synchronized void delete(final String host) throws NotFoundException {
+        LOG.info("Adapter PM adapter removed {}", requireNonNull(host));
+        final PerformanceManagementRestAgent adapter = adapters.remove(host);
+        if (adapter == null) {
+            throw new NotFoundException(host);
+        }
+        adapter.close();
+    }
+
+    @Override
+    public List<String> getAll() {
+        return ImmutableList.copyOf(adapters.keySet());
+    }
+
+    @Override
+    public ZoneId getTimeZone(final String host) {
+        LOG.debug("Read time zone for {}", host);
+        return Optional.ofNullable(adapters.get(host)).map(
+                PerformanceManagementRestAgent::getTimeZone).orElse(null);
+    }
+
+    @Override
+    public synchronized void close() {
+        for (final String host : ImmutableList.copyOf(adapters.keySet())) {
+            try {
+                delete(host);
+            } catch (final Exception e) {
+                LOG.warn("Failed to delete device PM adapter {}", host);
+            }
+        }
+        adapters.clear();
+    }
+}