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authorMarek Gradzki <mgradzki@cisco.com>2016-07-26 15:28:22 +0200
committerDave Wallace <dwallacelf@gmail.com>2016-08-16 21:26:19 +0000
commit66ea26b1bc7bbc8d54a3498dbd3d0919c4712fa8 (patch)
tree16c46e75723099ad859128af6069055e68897300 /vpp-api/java/jvpp-registry/org/openvpp/jvpp/JVppRegistryImpl.java
parentf4691cd7befd4cf31a63adffc204d71b1f1548e1 (diff)
VPP-205: jvpp plugin support.
Splits jvpp into two jars jvpp-registry.jar - base jvpp functionality jvpp-core.jar - Java wrapper for vpe.api Plugins can be generated the same way jvpp-core.jar is. Example (nsh): https://gerrit.fd.io/r/#/c/2118/ Change-Id: I2254f90b2c3e423563bb91bf70877979f1e90a7d Signed-off-by: Marek Gradzki <mgradzki@cisco.com>
Diffstat (limited to 'vpp-api/java/jvpp-registry/org/openvpp/jvpp/JVppRegistryImpl.java')
-rw-r--r--vpp-api/java/jvpp-registry/org/openvpp/jvpp/JVppRegistryImpl.java133
1 files changed, 133 insertions, 0 deletions
diff --git a/vpp-api/java/jvpp-registry/org/openvpp/jvpp/JVppRegistryImpl.java b/vpp-api/java/jvpp-registry/org/openvpp/jvpp/JVppRegistryImpl.java
new file mode 100644
index 00000000000..bb6730f4cae
--- /dev/null
+++ b/vpp-api/java/jvpp-registry/org/openvpp/jvpp/JVppRegistryImpl.java
@@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 2016 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 org.openvpp.jvpp;
+
+import static java.util.Objects.requireNonNull;
+
+import java.io.IOException;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import org.openvpp.jvpp.callback.ControlPingCallback;
+import org.openvpp.jvpp.callback.JVppCallback;
+import org.openvpp.jvpp.dto.ControlPingReply;
+
+/**
+ * Default implementation of JVppRegistry.
+ */
+public final class JVppRegistryImpl implements JVppRegistry, ControlPingCallback {
+
+ private static final Logger LOG = Logger.getLogger(JVppRegistryImpl.class.getName());
+
+ private final VppJNIConnection connection;
+ private final ConcurrentMap<String, JVppCallback> pluginRegistry;
+ private final ConcurrentMap<Integer, ControlPingCallback> pingCalls;
+
+ public JVppRegistryImpl(final String clientName) throws IOException {
+ connection = new VppJNIConnection(clientName);
+ connection.connect();
+ pluginRegistry = new ConcurrentHashMap<>();
+ pingCalls = new ConcurrentHashMap<>();
+ }
+
+ @Override
+ public VppConnection 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.putIfAbsent(name, callback) != null) {
+ throw new IllegalArgumentException(String.format("Callback for plugin %s was already registered", name));
+ }
+ jvpp.init(this, callback, connection.getConnectionInfo().queueAddress,
+ connection.getConnectionInfo().clientIndex);
+ }
+
+ @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(final Class<? extends JVpp> clazz) throws VppInvocationException {
+ connection.checkActive();
+ final String name = clazz.getName();
+
+ final ControlPingCallback callback = (ControlPingCallback) pluginRegistry.get(clazz.getName());
+ assertPluginWasRegistered(name, callback);
+
+ int context = controlPing0();
+ if (context < 0) {
+ throw new VppInvocationException("controlPing", context);
+ }
+
+ pingCalls.put(context, callback);
+ return context;
+ }
+
+
+ @Override
+ public void onControlPingReply(final ControlPingReply reply) {
+ final ControlPingCallback callback = pingCalls.get(reply.context);
+ if (callback == null) {
+ LOG.log(Level.WARNING, "No callback was registered for reply id={0} ", reply.context);
+ return;
+ }
+ // pass the reply to the callback registered by the ping caller
+ callback.onControlPingReply(reply);
+ }
+
+ @Override
+ public void onError(final VppCallbackException ex) {
+ final int ctxId = ex.getCtxId();
+ final ControlPingCallback callback = pingCalls.get(ctxId);
+ if (callback == null) {
+ LOG.log(Level.WARNING, "No callback was registered for reply id={0} ", ctxId);
+ return;
+ }
+ // pass the error to the callback registered by the ping caller
+ callback.onError(ex);
+ }
+
+ 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();
+ }
+}