292 lines
9.6 KiB
Java
292 lines
9.6 KiB
Java
/*
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* Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package com.sun.jdi.connect;
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import java.util.Map;
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import java.util.List;
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import java.io.Serializable;
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/**
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* A method of connection between a debugger and a target VM.
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* A connector encapsulates exactly one {@link Transport}. used
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* to establish the connection. Each connector has a set of arguments
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* which controls its operation. The arguments are stored as a
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* map, keyed by a string. Each implementation defines the string
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* argument keys it accepts.
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*
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* @see LaunchingConnector
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* @see AttachingConnector
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* @see ListeningConnector
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* @see Connector.Argument
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*
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* @author Gordon Hirsch
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* @since 1.3
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*/
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@jdk.Exported
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public interface Connector {
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/**
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* Returns a short identifier for the connector. Connector implementors
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* should follow similar naming conventions as are used with packages
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* to avoid name collisions. For example, the Sun connector
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* implementations have names prefixed with "com.sun.jdi.".
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* Not intended for exposure to end-user.
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*
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* @return the name of this connector.
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*/
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String name();
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/**
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* Returns a human-readable description of this connector
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* and its purpose.
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*
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* @return the description of this connector
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*/
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String description();
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/**
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* Returns the transport mechanism used by this connector to establish
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* connections with a target VM.
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*
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* @return the {@link Transport} used by this connector.
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*/
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Transport transport();
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/**
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* Returns the arguments accepted by this Connector and their
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* default values. The keys of the returned map are string argument
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* names. The values are {@link Connector.Argument} containing
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* information about the argument and its default value.
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*
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* @return the map associating argument names with argument
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* information and default value.
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*/
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Map<String,Connector.Argument> defaultArguments();
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/**
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* Specification for and value of a Connector argument.
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* Will always implement a subinterface of Argument:
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* {@link Connector.StringArgument}, {@link Connector.BooleanArgument},
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* {@link Connector.IntegerArgument},
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* or {@link Connector.SelectedArgument}.
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*/
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@jdk.Exported
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public interface Argument extends Serializable {
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/**
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* Returns a short, unique identifier for the argument.
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* Not intended for exposure to end-user.
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*
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* @return the name of this argument.
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*/
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String name();
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/**
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* Returns a short human-readable label for this argument.
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*
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* @return a label for this argument
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*/
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String label();
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/**
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* Returns a human-readable description of this argument
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* and its purpose.
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*
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* @return the description of this argument
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*/
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String description();
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/**
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* Returns the current value of the argument. Initially, the
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* default value is returned. If the value is currently unspecified,
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* null is returned.
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*
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* @return the current value of the argument.
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*/
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String value();
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/**
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* Sets the value of the argument.
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* The value should be checked with {@link #isValid(String)}
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* before setting it; invalid values will throw an exception
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* when the connection is established - for example,
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* on {@link LaunchingConnector#launch}
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*/
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void setValue(String value);
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/**
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* Performs basic sanity check of argument.
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* @return <code>true</code> if the value is valid to be
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* used in {@link #setValue(String)}
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*/
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boolean isValid(String value);
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/**
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* Indicates whether the argument must be specified. If true,
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* {@link #setValue} must be used to set a non-null value before
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* using this argument in establishing a connection.
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*
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* @return <code>true</code> if the argument must be specified;
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* <code>false</code> otherwise.
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*/
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boolean mustSpecify();
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}
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/**
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* Specification for and value of a Connector argument,
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* whose value is Boolean. Boolean values are represented
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* by the localized versions of the strings "true" and "false".
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*/
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@jdk.Exported
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public interface BooleanArgument extends Argument {
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/**
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* Sets the value of the argument.
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*/
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void setValue(boolean value);
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/**
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* Performs basic sanity check of argument.
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* @return <code>true</code> if value is a string
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* representation of a boolean value.
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* @see #stringValueOf(boolean)
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*/
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boolean isValid(String value);
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/**
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* Return the string representation of the <code>value</code>
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* parameter.
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* Does not set or examine the current value of <code>this</code>
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* instance.
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* @return the localized String representation of the
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* boolean value.
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*/
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String stringValueOf(boolean value);
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/**
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* Return the value of the argument as a boolean. Since
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* the argument may not have been set or may have an invalid
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* value {@link #isValid(String)} should be called on
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* {@link #value()} to check its validity. If it is invalid
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* the boolean returned by this method is undefined.
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* @return the value of the argument as a boolean.
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*/
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boolean booleanValue();
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}
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/**
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* Specification for and value of a Connector argument,
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* whose value is an integer. Integer values are represented
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* by their corresponding strings.
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*/
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@jdk.Exported
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public interface IntegerArgument extends Argument {
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/**
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* Sets the value of the argument.
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* The value should be checked with {@link #isValid(int)}
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* before setting it; invalid values will throw an exception
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* when the connection is established - for example,
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* on {@link LaunchingConnector#launch}
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*/
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void setValue(int value);
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/**
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* Performs basic sanity check of argument.
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* @return <code>true</code> if value represents an int that is
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* <code>{@link #min()} <= value <= {@link #max()}</code>
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*/
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boolean isValid(String value);
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/**
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* Performs basic sanity check of argument.
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* @return <code>true</code> if
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* <code>{@link #min()} <= value <= {@link #max()}</code>
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*/
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boolean isValid(int value);
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/**
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* Return the string representation of the <code>value</code>
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* parameter.
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* Does not set or examine the current value of <code>this</code>
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* instance.
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* @return the String representation of the
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* int value.
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*/
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String stringValueOf(int value);
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/**
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* Return the value of the argument as a int. Since
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* the argument may not have been set or may have an invalid
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* value {@link #isValid(String)} should be called on
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* {@link #value()} to check its validity. If it is invalid
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* the int returned by this method is undefined.
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* @return the value of the argument as a int.
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*/
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int intValue();
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/**
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* The upper bound for the value.
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* @return the maximum allowed value for this argument.
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*/
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int max();
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/**
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* The lower bound for the value.
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* @return the minimum allowed value for this argument.
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*/
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int min();
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}
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/**
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* Specification for and value of a Connector argument,
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* whose value is a String.
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*/
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@jdk.Exported
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public interface StringArgument extends Argument {
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/**
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* Performs basic sanity check of argument.
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* @return <code>true</code> always
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*/
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boolean isValid(String value);
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}
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/**
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* Specification for and value of a Connector argument,
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* whose value is a String selected from a list of choices.
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*/
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@jdk.Exported
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public interface SelectedArgument extends Argument {
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/**
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* Return the possible values for the argument
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* @return {@link List} of {@link String}
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*/
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List<String> choices();
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/**
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* Performs basic sanity check of argument.
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* @return <code>true</code> if value is one of {@link #choices()}.
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*/
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boolean isValid(String value);
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}
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}
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