Copyright (c) 2000, 2015 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, 2015 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.util.Map;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.Platform;
import org.eclipse.debug.core.ILaunch;
import org.eclipse.debug.core.ILaunchConfiguration;
import org.eclipse.debug.core.model.IDebugTarget;
import org.eclipse.jdt.launching.AbstractJavaLaunchConfigurationDelegate;
import org.eclipse.jdt.launching.IJavaLaunchConfigurationConstants;
import org.eclipse.jdt.launching.IVMConnector;
import org.eclipse.jdt.launching.JavaRuntime;
import org.eclipse.osgi.util.NLS;

Launch configuration delegate for a remote Java application.
/**
 * Launch configuration delegate for a remote Java application.
 */
public class JavaRemoteApplicationLaunchConfigurationDelegate extends AbstractJavaLaunchConfigurationDelegate {

	/* (non-Javadoc)
	 * @see org.eclipse.debug.core.model.ILaunchConfigurationDelegate#launch(org.eclipse.debug.core.ILaunchConfiguration, java.lang.String, org.eclipse.debug.core.ILaunch, org.eclipse.core.runtime.IProgressMonitor)
	 */
	@Override
	public void launch(ILaunchConfiguration configuration, String mode, ILaunch launch, IProgressMonitor monitor) throws CoreException {

		if (monitor == null) {
			monitor = new NullProgressMonitor();
		}

		monitor.beginTask(NLS.bind(LaunchingMessages.JavaRemoteApplicationLaunchConfigurationDelegate_Attaching_to__0_____1, new String[]{configuration.getName()}), 3);
		// check for cancellation
		if (monitor.isCanceled()) {
			return;
		}
		try {
			monitor.subTask(LaunchingMessages.JavaRemoteApplicationLaunchConfigurationDelegate_Verifying_launch_attributes____1);

			String connectorId = getVMConnectorId(configuration);
			IVMConnector connector = null;
			if (connectorId == null) {
				connector = JavaRuntime.getDefaultVMConnector();
			} else {
				connector = JavaRuntime.getVMConnector(connectorId);
			}
			if (connector == null) {
				abort(LaunchingMessages.JavaRemoteApplicationLaunchConfigurationDelegate_Connector_not_specified_2, null, IJavaLaunchConfigurationConstants.ERR_CONNECTOR_NOT_AVAILABLE);
			}

			Map<String, String> argMap = configuration.getAttribute(IJavaLaunchConfigurationConstants.ATTR_CONNECT_MAP, (Map<String, String>)null);

	        int connectTimeout = Platform.getPreferencesService().getInt(
	        		LaunchingPlugin.ID_PLUGIN,
	        		JavaRuntime.PREF_CONNECT_TIMEOUT,
	        		JavaRuntime.DEF_CONNECT_TIMEOUT,
	        		null);
	        argMap.put("timeout", Integer.toString(connectTimeout));  //$NON-NLS-1$

			// check for cancellation
			if (monitor.isCanceled()) {
				return;
			}

			monitor.worked(1);

			monitor.subTask(LaunchingMessages.JavaRemoteApplicationLaunchConfigurationDelegate_Creating_source_locator____2);
			// set the default source locator if required
			setDefaultSourceLocator(launch, configuration);
			monitor.worked(1);

			// connect to remote VM
			connector.connect(argMap, monitor, launch);

			// check for cancellation
			if (monitor.isCanceled()) {
				IDebugTarget[] debugTargets = launch.getDebugTargets();
	            for (int i = 0; i < debugTargets.length; i++) {
	                IDebugTarget target = debugTargets[i];
	                if (target.canDisconnect()) {
	                    target.disconnect();
	                }
	            }
	            return;
			}
		}
		finally {
			monitor.done();
		}
	}

}