diff options
Diffstat (limited to 'vpp-api/java/jvpp/org/openvpp/jvpp/VppJNIConnection.java')
-rw-r--r-- | vpp-api/java/jvpp/org/openvpp/jvpp/VppJNIConnection.java | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/vpp-api/java/jvpp/org/openvpp/jvpp/VppJNIConnection.java b/vpp-api/java/jvpp/org/openvpp/jvpp/VppJNIConnection.java deleted file mode 100644 index 7401bcad..00000000 --- a/vpp-api/java/jvpp/org/openvpp/jvpp/VppJNIConnection.java +++ /dev/null @@ -1,143 +0,0 @@ -/* - * 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 java.io.IOException; -import java.io.InputStream; -import java.nio.file.Files; -import java.nio.file.Path; -import java.nio.file.StandardCopyOption; -import java.nio.file.attribute.PosixFilePermission; -import java.nio.file.attribute.PosixFilePermissions; -import java.util.HashMap; -import java.util.Map; -import java.util.Objects; -import java.util.Set; -import java.util.logging.Logger; -import org.openvpp.jvpp.callback.JVppCallback; - -/** - * JNI based representation of a management connection to VPP - */ -public final class VppJNIConnection implements VppConnection { - private final static Logger LOG = Logger.getLogger(VppJNIConnection.class.getName()); - private static final String LIBNAME = "libjvpp.so.0.0.0"; - - static { - try { - loadLibrary(); - } catch (Exception e) { - LOG.severe("Can't find vpp jni library: " + LIBNAME); - throw new ExceptionInInitializerError(e); - } - } - - private static void loadStream(final InputStream is) throws IOException { - final Set<PosixFilePermission> perms = PosixFilePermissions.fromString("rwxr-x---"); - final Path p = Files.createTempFile(LIBNAME, null, PosixFilePermissions.asFileAttribute(perms)); - try { - Files.copy(is, p, StandardCopyOption.REPLACE_EXISTING); - - try { - Runtime.getRuntime().load(p.toString()); - } catch (UnsatisfiedLinkError e) { - throw new IOException("Failed to load library " + p, e); - } - } finally { - try { - Files.deleteIfExists(p); - } catch (IOException e) { - } - } - } - - private static void loadLibrary() throws IOException { - try (final InputStream is = VppJNIConnection.class.getResourceAsStream('/' + LIBNAME)) { - if (is == null) { - throw new IOException("Failed to open library resource " + LIBNAME); - } - loadStream(is); - } - } - - private final String clientName; - private volatile boolean disconnected = false; - - /** - * Create VPPJNIConnection instance for client connecting to VPP. - * - * @param clientName client name instance to be used for communication. Single connection per clientName is allowed. - */ - public VppJNIConnection(final String clientName) { - this.clientName = Objects.requireNonNull(clientName,"Null clientName"); - } - - /** - * Guarded by VppJNIConnection.class - */ - private static final Map<String, VppJNIConnection> connections = new HashMap<>(); - - /** - * Initiate VPP connection for current instance - * - * Multiple instances are allowed since this class is not a singleton - * (VPP allows multiple management connections). - * - * However only a single connection per clientName is allowed. - * - * @param callback global callback to receive response calls from vpp - * - * @throws IOException in case the connection could not be established - */ - public void connect(final JVppCallback callback) throws IOException { - synchronized (VppJNIConnection.class) { - if(connections.containsKey(clientName)) { - throw new IOException("Client " + clientName + " already connected"); - } - - final int ret = clientConnect(clientName, callback); - if (ret != 0) { - throw new IOException("Connection returned error " + ret); - } - connections.put(clientName, this); - } - } - - @Override - public final void checkActive() { - if (disconnected) { - throw new IllegalStateException("Disconnected client " + clientName); - } - } - - @Override - public synchronized final void close() { - if (!disconnected) { - disconnected = true; - try { - clientDisconnect(); - } finally { - synchronized (VppJNIConnection.class) { - connections.remove(clientName); - } - } - } - } - - private static native int clientConnect(String clientName, JVppCallback callback); - private static native void clientDisconnect(); -} |