Copyright (c) 2000, 2011 IBM Corporation and others.
This program and the accompanying materials
are made available under the terms of the Eclipse Public License 2.0
which accompanies this distribution, and is available at
https://www.eclipse.org/legal/epl-2.0/
SPDX-License-Identifier: EPL-2.0
Contributors:
    IBM Corporation - initial API and implementation
/*******************************************************************************
 * Copyright (c) 2000, 2011 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jdt.internal.launching;


import java.io.File;

import org.eclipse.debug.core.ILaunchManager;
import org.eclipse.jdt.launching.AbstractVMInstall;
import org.eclipse.jdt.launching.IVMInstallType;
import org.eclipse.jdt.launching.IVMRunner;
import org.eclipse.osgi.util.NLS;

public class StandardVM extends AbstractVMInstall {

	
If a StandardVM returns a string for #getDebugArgs(), the string may contain
the variable ${port}.  This will be replaced with the port that the vm is
using when launching.
/**
	 * If a StandardVM returns a string for #getDebugArgs(), the string may contain
	 * the variable ${port}.  This will be replaced with the port that the vm is
	 * using when launching.
	 */
	public static final String VAR_PORT = "${port}"; //$NON-NLS-1$

	StandardVM(IVMInstallType type, String id) {
		super(type, id);
	}
	/* (non-Javadoc)
	 * @see org.eclipse.jdt.launching.IVMInstall#getVMRunner(java.lang.String)
	 */
	@Override
	public IVMRunner getVMRunner(String mode) {
		if (ILaunchManager.RUN_MODE.equals(mode)) {
			return new StandardVMRunner(this);
		} else if (ILaunchManager.DEBUG_MODE.equals(mode)) {
			return new StandardVMDebugger(this);
		}
		return null;
	}

    /* (non-Javadoc)
     * @see org.eclipse.jdt.launching.IVMInstall#getJavaVersion()
     */
    @Override
	public String getJavaVersion() {
        StandardVMType installType = (StandardVMType) getVMInstallType();
        File installLocation = getInstallLocation();
        if (installLocation != null) {
            File executable = getJavaExecutable();
            if (executable != null) {
                String vmVersion = installType.getVMVersion(installLocation, executable);
                // strip off extra info
                StringBuilder version = new StringBuilder();
                for (int i = 0; i < vmVersion.length(); i++) {
                    char ch = vmVersion.charAt(i);
                    if (Character.isDigit(ch) || ch == '.') {
                        version.append(ch);
                    } else {
                        break;
                    }
                }
                if (version.length() > 0) {
                    return version.toString();
                }
            }
            LaunchingPlugin.log(NLS.bind(LaunchingMessages.vmInstall_could_not_determine_java_Version, installLocation.getAbsolutePath()));
        }
        return null;
    }

    
Returns the java executable for this VM or null if cannot be found
Returns:
executable for this VM or null if none/**
     * Returns the java executable for this VM or <code>null</code> if cannot be found
     *
     * @return executable for this VM or <code>null</code> if none
     */
    File getJavaExecutable() {
    	File installLocation = getInstallLocation();
        if (installLocation != null) {
            return StandardVMType.findJavaExecutable(installLocation);
        }
        return null;
    }

    
Returns arguments used to start this VM in debug mode or
null if default arguments should be used.
Returns:
arguments used to start this VM in debug mode
or null if default arguments should be used/**
     * Returns arguments used to start this VM in debug mode or
     * <code>null</code> if default arguments should be used.
     *
     * @return arguments used to start this VM in debug mode
     * or <code>null</code> if default arguments should be used
     */
    public String getDebugArgs() {
    	return null;
    }

}