/*

 * 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.util.Map;

import java.util.logging.Level;

import java.util.logging.Logger;

import jdk.jshell.JShell;

import jdk.jshell.execution.JdiExecutionControlProvider;

import jdk.jshell.execution.RemoteExecutionControl;

import jdk.jshell.spi.ExecutionControlProvider;

/**

 * Hang for three minutes (long enough to cause a timeout).

 */

class HangingRemoteAgent extends RemoteExecutionControl {

    private static final long DELAY = 4000L;

    private static final int TIMEOUT = 2000;

    private static final boolean INFRA_VERIFY = false;

    public static void main(String[] args) throws Exception {

        if (INFRA_VERIFY) {

            RemoteExecutionControl.main(args);

        } else {

            long end = System.currentTimeMillis() + DELAY;

            long remaining;

            while ((remaining = end - System.currentTimeMillis()) > 0L) {

                try {

                    Thread.sleep(remaining);

                } catch (InterruptedException ex) {

                    // loop again

                }

            }

        }

    }

    static JShell state(boolean isLaunch, String host) {

        ExecutionControlProvider ecp = new JdiExecutionControlProvider();

        Map<String,String> pm = ecp.defaultParameters();

        pm.put(JdiExecutionControlProvider.PARAM_REMOTE_AGENT, HangingRemoteAgent.class.getName());

        pm.put(JdiExecutionControlProvider.PARAM_HOST_NAME, host==null? "" : host);

        pm.put(JdiExecutionControlProvider.PARAM_LAUNCH, ""+isLaunch);

        pm.put(JdiExecutionControlProvider.PARAM_TIMEOUT, ""+TIMEOUT);

        // turn on logging of launch failures

        Logger.getLogger("jdk.jshell.execution").setLevel(Level.ALL);

        return JShell.builder()

                .executionEngine(ecp, pm)

                .build();

    }

}