JDK8/Java8源码在线阅读

/*
 * Copyright (c) 1999, 2011, 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
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 * questions.
 */

package com.sun.tools.jdi;

import com.sun.tools.jdi.*;
import com.sun.jdi.connect.*;
import com.sun.jdi.connect.spi.*;
import com.sun.jdi.VirtualMachine;
import java.util.Map;
import java.io.IOException;

public class RawCommandLineLauncher extends AbstractLauncher implements LaunchingConnector {

    static private final String ARG_COMMAND = "command";
    static private final String ARG_ADDRESS = "address";
    static private final String ARG_QUOTE   = "quote";

    TransportService transportService;
    Transport transport;

    public TransportService transportService() {
        return transportService;
    }

    public Transport transport() {
        return transport;
    }

    public RawCommandLineLauncher() {
        super();

        try {
            Class<?> c = Class.forName("com.sun.tools.jdi.SharedMemoryTransportService");
            transportService = (TransportService)c.newInstance();
            transport = new Transport() {
                public String name() {
                    return "dt_shmem";
                }
            };
        } catch (ClassNotFoundException x) {
        } catch (UnsatisfiedLinkError x) {
        } catch (InstantiationException x) {
        } catch (IllegalAccessException x) {
        };

        if (transportService == null) {
            transportService = new SocketTransportService();
            transport = new Transport() {
                public String name() {
                    return "dt_socket";
                }
            };
        }

        addStringArgument(
                ARG_COMMAND,
                getString("raw.command.label"),
                getString("raw.command"),
                "",
                true);
        addStringArgument(
                ARG_QUOTE,
                getString("raw.quote.label"),
                getString("raw.quote"),
                "\"",
                true);

        addStringArgument(
                ARG_ADDRESS,
                getString("raw.address.label"),
                getString("raw.address"),
                "",
                true);
    }


    public VirtualMachine
        launch(Map<String,? extends Connector.Argument> arguments)
        throws IOException, IllegalConnectorArgumentsException,
               VMStartException
    {
        String command = argument(ARG_COMMAND, arguments).value();
        String address = argument(ARG_ADDRESS, arguments).value();

        String quote = argument(ARG_QUOTE, arguments).value();

        if (quote.length() > 1) {
            throw new IllegalConnectorArgumentsException("Invalid length",
                                                         ARG_QUOTE);
        }


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