| /* |
| * 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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. |
| */ |
| |
| package jdk.jshell.spi; |
| |
| import java.io.InputStream; |
| import java.io.PrintStream; |
| import java.util.List; |
| |
| /** |
| * Functionality made available to a pluggable JShell execution engine. It is |
| * provided to the execution engine by the core JShell implementation. |
| * <p> |
| * This interface is designed to provide the access to core JShell functionality |
| * needed to implement ExecutionControl. |
| * |
| * @since 9 |
| * @see ExecutionControl |
| */ |
| public interface ExecutionEnv { |
| |
| /** |
| * Returns the user's input stream. |
| * |
| * @return the user's input stream |
| */ |
| InputStream userIn(); |
| |
| /** |
| * Returns the user's output stream. |
| * |
| * @return the user's output stream |
| */ |
| PrintStream userOut(); |
| |
| /** |
| * Returns the user's error stream. |
| * |
| * @return the user's error stream |
| */ |
| PrintStream userErr(); |
| |
| /** |
| * Returns the additional VM options to be used when launching the remote |
| * JVM. This is advice to the execution engine. |
| * <p> |
| * Note: an execution engine need not launch a remote JVM. |
| * |
| * @return the additional options with which to launch the remote JVM |
| */ |
| List<String> extraRemoteVMOptions(); |
| |
| /** |
| * Reports that the execution engine has shutdown. |
| */ |
| void closeDown(); |
| |
| } |