--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/langtools/jdk/jshell/MyExecutionControl.java Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,161 @@
+/*
+ * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.ObjectInput;
+import java.io.ObjectOutput;
+import java.io.OutputStream;
+import java.net.ServerSocket;
+import java.net.Socket;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.function.Consumer;
+import com.sun.jdi.VMDisconnectedException;
+import com.sun.jdi.VirtualMachine;
+import jdk.jshell.execution.JdiExecutionControl;
+import jdk.jshell.execution.JdiInitiator;
+import jdk.jshell.execution.Util;
+import jdk.jshell.spi.ExecutionControl;
+import jdk.jshell.spi.ExecutionControl.EngineTerminationException;
+import jdk.jshell.spi.ExecutionEnv;
+import static org.testng.Assert.fail;
+import static jdk.jshell.execution.Util.remoteInputOutput;
+
+class MyExecutionControl extends JdiExecutionControl {
+
+ private static final String REMOTE_AGENT = MyRemoteExecutionControl.class.getName();
+ private static final int TIMEOUT = 2000;
+
+ private VirtualMachine vm;
+ private Process process;
+
+ /**
+ * Creates an ExecutionControl instance based on a JDI
+ * {@code ListeningConnector} or {@code LaunchingConnector}.
+ *
+ * Initialize JDI and use it to launch the remote JVM. Set-up a socket for
+ * commands and results. This socket also transports the user
+ * input/output/error.
+ *
+ * @param env the context passed by
+ * {@link jdk.jshell.spi.ExecutionControl#start(jdk.jshell.spi.ExecutionEnv) }
+ * @return the channel
+ * @throws IOException if there are errors in set-up
+ */
+ static ExecutionControl make(ExecutionEnv env, UserJdiUserRemoteTest test) throws IOException {
+ try (final ServerSocket listener = new ServerSocket(0)) {
+ // timeout for socket
+ listener.setSoTimeout(TIMEOUT);
+ int port = listener.getLocalPort();
+
+ // Set-up the JDI connection
+ List<String> opts = new ArrayList<>(env.extraRemoteVMOptions());
+ opts.add("-classpath");
+ opts.add(System.getProperty("java.class.path")
+ + System.getProperty("path.separator")
+ + System.getProperty("user.dir"));
+ JdiInitiator jdii = new JdiInitiator(port,
+ opts, REMOTE_AGENT, true, null, TIMEOUT, Collections.emptyMap());
+ VirtualMachine vm = jdii.vm();
+ Process process = jdii.process();
+
+ List<Consumer<String>> deathListeners = new ArrayList<>();
+ deathListeners.add(s -> env.closeDown());
+ Util.detectJdiExitEvent(vm, s -> {
+ for (Consumer<String> h : deathListeners) {
+ h.accept(s);
+ }
+ });
+
+ // Set-up the commands/reslts on the socket. Piggy-back snippet
+ // output.
+ Socket socket = listener.accept();
+ // out before in -- match remote creation so we don't hang
+ OutputStream out = socket.getOutputStream();
+ Map<String, OutputStream> outputs = new HashMap<>();
+ outputs.put("out", env.userOut());
+ outputs.put("err", env.userErr());
+ outputs.put("aux", test.auxStream);
+ Map<String, InputStream> input = new HashMap<>();
+ input.put("in", env.userIn());
+ ExecutionControl myec = remoteInputOutput(socket.getInputStream(),
+ out, outputs, input,
+ (objIn, objOut) -> new MyExecutionControl(objOut, objIn, vm, process, deathListeners));
+ test.currentEC = myec;
+ return myec;
+ }
+ }
+
+ /**
+ * Create an instance.
+ *
+ * @param out the output for commands
+ * @param in the input for responses
+ */
+ private MyExecutionControl(ObjectOutput out, ObjectInput in,
+ VirtualMachine vm, Process process,
+ List<Consumer<String>> deathListeners) {
+ super(out, in);
+ this.vm = vm;
+ this.process = process;
+ deathListeners.add(s -> disposeVM());
+ }
+
+ @Override
+ public void close() {
+ super.close();
+ disposeVM();
+ }
+
+ private synchronized void disposeVM() {
+ try {
+ if (vm != null) {
+ vm.dispose(); // This could NPE, so it is caught below
+ vm = null;
+ }
+ } catch (VMDisconnectedException ex) {
+ // Ignore if already closed
+ } catch (Throwable e) {
+ fail("disposeVM threw: " + e);
+ } finally {
+ if (process != null) {
+ process.destroy();
+ process = null;
+ }
+ }
+ }
+
+ @Override
+ protected synchronized VirtualMachine vm() throws EngineTerminationException {
+ if (vm == null) {
+ throw new EngineTerminationException("VM closed");
+ } else {
+ return vm;
+ }
+ }
+
+}