Module jdk.jshell

Package jdk.jshell.execution

Class JdiInitiator

java.lang.Object

jdk.jshell.execution.JdiInitiator

public class JdiInitiator
extends Object

Sets up a JDI connection, providing the resulting JDI VirtualMachine and the Process the remote agent is running in.

Since:

9

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static interface	JdiInitiator.ProcessStarted	Callback that should invoked when the remote process is invoked.

Constructor Summary

Constructors

Constructor	Description
JdiInitiator(int port, List<String> remoteVMOptions, String remoteAgent, boolean isLaunch, String host, int timeout, Map<String,String> customConnectorArgs)	Start the remote agent and establish a JDI connection to it.

Method Summary

Modifier and Type	Method	Description
Process	process()	Returns the launched process.
protected void	runListenProcess(String jdiAddress, int jshellControlPort, List<String> remoteVMOptions, JdiInitiator.ProcessStarted setupVM)	Create a process that will attach to the given address.
VirtualMachine	vm()	Returns the resulting VirtualMachine instance.

Methods declared in class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

JdiInitiator

public JdiInitiator(int port,
 List<String> remoteVMOptions,
 String remoteAgent,
 boolean isLaunch,
 String host,
 int timeout,
 Map<String,String> customConnectorArgs)

Start the remote agent and establish a JDI connection to it.

Parameters:

port - the socket port for (non-JDI) commands

remoteVMOptions - any user requested VM command-line options

remoteAgent - full class name of remote agent to launch

isLaunch - does JDI do the launch? That is, LaunchingConnector, otherwise we start explicitly and use ListeningConnector

host - explicit hostname to use, if null use discovered hostname, applies to listening only (!isLaunch)

timeout - the start-up time-out in milliseconds. If zero or negative, will not wait thus will timeout immediately if not already started.

customConnectorArgs - custom arguments passed to the connector. These are JDI com.sun.jdi.connect.Connector arguments. The vmexec argument is not supported.

Method Details

vm

public VirtualMachine vm()

Returns the resulting VirtualMachine instance.

Returns:

the virtual machine

process

public Process process()

Returns the launched process.

Returns:

the remote agent process

runListenProcess

protected void runListenProcess(String jdiAddress,
 int jshellControlPort,
 List<String> remoteVMOptions,
 JdiInitiator.ProcessStarted setupVM)

Create a process that will attach to the given address.

Parameters:

jdiAddress - address on which a JDI server is waiting for a connection

jshellControlPort - the port which the remote agent should connect to

remoteVMOptions - VM options for the remote agent VM

setupVM - a callback that should be called then the remote agent process is created. The callback will setup the JDI's VirtualMachine.

Since:

22