summaryrefslogtreecommitdiffstats
path: root/java/jvpp-stats/io/fd/jvpp/stats/JVppStatsRegistryImpl.java
diff options
context:
space:
mode:
Diffstat (limited to 'java/jvpp-stats/io/fd/jvpp/stats/JVppStatsRegistryImpl.java')
-rw-r--r--java/jvpp-stats/io/fd/jvpp/stats/JVppStatsRegistryImpl.java96
1 files changed, 96 insertions, 0 deletions
diff --git a/java/jvpp-stats/io/fd/jvpp/stats/JVppStatsRegistryImpl.java b/java/jvpp-stats/io/fd/jvpp/stats/JVppStatsRegistryImpl.java
new file mode 100644
index 0000000..a94a77f
--- /dev/null
+++ b/java/jvpp-stats/io/fd/jvpp/stats/JVppStatsRegistryImpl.java
@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2019 Cisco and/or its affiliates.
+ *
+ * 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.
+ */
+
+package io.fd.jvpp.stats;
+
+import io.fd.jvpp.JVpp;
+import io.fd.jvpp.JVppRegistry;
+import io.fd.jvpp.VppInvocationException;
+import io.fd.jvpp.callback.JVppCallback;
+
+import java.io.IOException;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+import static java.util.Objects.requireNonNull;
+
+/**
+ * Stats implementation of JVppRegistry.
+ */
+public final class JVppStatsRegistryImpl implements JVppRegistry {
+
+ private final VppStatsJNIConnection connection;
+ // Unguarded concurrent map, no race conditions expected on top of that
+ private final Map<String, JVppCallback> pluginRegistry;
+
+ public JVppStatsRegistryImpl(final String clientName) throws IOException {
+ connection = new VppStatsJNIConnection(clientName);
+ connection.connect();
+ pluginRegistry = new ConcurrentHashMap<>();
+ }
+
+ @Override
+ public VppStatsJNIConnection getConnection() {
+ return connection;
+ }
+
+ @Override
+ public void register(final JVpp jvpp, final JVppCallback callback) {
+ requireNonNull(jvpp, "jvpp should not be null");
+ requireNonNull(callback, "Callback should not be null");
+ final String name = jvpp.getClass().getName();
+ if (pluginRegistry.containsKey(name)) {
+ throw new IllegalArgumentException(
+ String.format("Callback for plugin %s was already registered", name));
+ }
+ jvpp.init(this, callback, connection.getStatsConnectionInfo().queueAddress,
+ connection.getStatsConnectionInfo().clientIndex);
+ pluginRegistry.put(name, callback);
+ }
+
+ @Override
+ public void unregister(final String name) {
+ requireNonNull(name, "Plugin name should not be null");
+ final JVppCallback previous = pluginRegistry.remove(name);
+ assertPluginWasRegistered(name, previous);
+ }
+
+ @Override
+ public JVppCallback get(final String name) {
+ requireNonNull(name, "Plugin name should not be null");
+ JVppCallback value = pluginRegistry.get(name);
+ assertPluginWasRegistered(name, value);
+ return value;
+ }
+
+ private native int controlPing0() throws VppInvocationException;
+
+ @Override
+ public int controlPing(Class<? extends JVpp> clazz) throws VppInvocationException {
+ return controlPing0();
+ }
+
+ private static void assertPluginWasRegistered(final String name, final JVppCallback value) {
+ if (value == null) {
+ throw new IllegalArgumentException(String.format("Callback for plugin %s is not registered", name));
+ }
+ }
+
+ @Override
+ public void close() throws Exception {
+ connection.close();
+ }
+}