1/*
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5 * This code is free software; you can redistribute it and/or modify it
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7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
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24 */
25
26package com.sun.jdi.connect;
27
28import java.io.IOException;
29import java.util.Map;
30
31import com.sun.jdi.VirtualMachine;
32import com.sun.jdi.event.VMStartEvent;
33
34/**
35 * A connector which can launch a target VM before connecting to it.
36 *
37 * @author Gordon Hirsch
38 * @since  1.3
39 */
40public interface LaunchingConnector extends Connector {
41
42    /**
43     * Launches an application and connects to its VM. Properties
44     * of the launch (possibly including options,
45     * main class, and arguments) are specified in
46     * <code>arguments</code>.
47     * The argument map associates argument name strings to instances
48     * of {@link Connector.Argument}. The default argument map for a
49     * connector can be obtained through {@link Connector#defaultArguments}.
50     * Argument map values can be changed, but map entries should not be
51     * added or deleted.
52     * <p>A target VM launched by a launching connector is not
53     * guaranteed to be stable until after the {@link VMStartEvent} has been
54     * received.
55     * <p>
56     * <b>Important note:</b> If a target VM is launched through this
57     * funcctions, its output and error streams must be read as it
58     * executes. These streams are available through the
59     * {@link java.lang.Process Process} object returned by
60     * {@link VirtualMachine#process}. If the streams are not periodically
61     * read, the target VM will stop executing when the buffers for these
62     * streams are filled.
63     *
64     * @param arguments the argument map to be used in launching the VM.
65     * @return the {@link VirtualMachine} mirror of the target VM.
66     * @throws java.io.IOException when unable to launch.
67     * Specific exceptions are dependent on the Connector implementation
68     * in use.
69     * @throws IllegalConnectorArgumentsException when one of the
70     * connector arguments is invalid.
71     * @throws VMStartException when the VM was successfully launched, but
72     * terminated with an error before a connection could be established.
73     */
74    VirtualMachine launch(Map<String,? extends Connector.Argument> arguments)
75        throws IOException, IllegalConnectorArgumentsException,
76               VMStartException;
77}
78