org.eclipse.jdt.debug.ui/ui/org/eclipse/jdt/debug/ui/launchConfigurations/JavaConnectTab.java - jdt/eclipse.jdt.debug - Git at Google

 package org.eclipse.jdt.debug.ui.launchConfigurations;

 /*
  * (c) Copyright IBM Corp. 2000, 2001.
  * All Rights Reserved.
  */

 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;

 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.IWorkspaceRoot;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.debug.core.ILaunchConfiguration;
 import org.eclipse.debug.core.ILaunchConfigurationWorkingCopy;
 import org.eclipse.debug.ui.DebugUITools;
 import org.eclipse.debug.ui.IDebugUIConstants;
 import org.eclipse.jdt.core.IJavaElement;
 import org.eclipse.jdt.core.IJavaModel;
 import org.eclipse.jdt.core.IJavaProject;
 import org.eclipse.jdt.core.JavaCore;
 import org.eclipse.jdt.core.JavaModelException;
 import org.eclipse.jdt.internal.debug.ui.IJavaDebugHelpContextIds;
 import org.eclipse.jdt.internal.debug.ui.JDIDebugUIPlugin;
 import org.eclipse.jdt.internal.debug.ui.launcher.ComboFieldEditor;
 import org.eclipse.jdt.internal.debug.ui.launcher.JavaLaunchConfigurationTab;
 import org.eclipse.jdt.internal.debug.ui.launcher.LauncherMessages;
 import org.eclipse.jdt.launching.IJavaLaunchConfigurationConstants;
 import org.eclipse.jdt.launching.IVMConnector;
 import org.eclipse.jdt.launching.JavaRuntime;
 import org.eclipse.jdt.ui.JavaElementLabelProvider;
 import org.eclipse.jface.preference.BooleanFieldEditor;
 import org.eclipse.jface.preference.FieldEditor;
 import org.eclipse.jface.preference.IntegerFieldEditor;
 import org.eclipse.jface.preference.PreferenceStore;
 import org.eclipse.jface.preference.StringFieldEditor;
 import org.eclipse.jface.util.IPropertyChangeListener;
 import org.eclipse.jface.util.PropertyChangeEvent;
 import org.eclipse.jface.viewers.ILabelProvider;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.ModifyEvent;
 import org.eclipse.swt.events.ModifyListener;
 import org.eclipse.swt.events.SelectionAdapter;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.graphics.Font;
 import org.eclipse.swt.graphics.Image;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Combo;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Group;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Text;
 import org.eclipse.ui.dialogs.ElementListSelectionDialog;
 import org.eclipse.ui.help.WorkbenchHelp;

 import com.sun.jdi.connect.Connector;

 /**
  * A launch configuration tab that displays and edits the project associated
  * with a remote connection and the connector used to connect to a remote
  * VM.
  * <p>
  * This class may be instantiated. This class is not intended to be subclassed.
  * </p>
  * @since 2.0
  */
 public class JavaConnectTab extends JavaLaunchConfigurationTab implements IPropertyChangeListener {

 	// Project UI widgets
 	protected Label fProjLabel;
 	protected Text fProjText;
 	protected Button fProjButton;

 	// Allow terminate UI widgets
 	protected Button fAllowTerminateButton;

 	// Connector attributes for selected connector
 	protected Map fArgumentMap;
 	protected Map fFieldEditorMap = new HashMap();
 	protected Composite fArgumentComposite;
 	// the selected connector
 	protected IVMConnector fConnector;

 	// Connector combo
 	protected Combo fConnectorCombo;
 	protected IVMConnector[] fConnectors = JavaRuntime.getVMConnectors();

 	protected static final String EMPTY_STRING = ""; //$NON-NLS-1$

 	/**
 	 * @see ILaunchConfigurationTab#createControl(Composite)
 	 */
 	public void createControl(Composite parent) {
 		Font font = parent.getFont();

 		Composite comp = new Composite(parent, SWT.NONE);
 		setControl(comp);
 		WorkbenchHelp.setHelp(getControl(), IJavaDebugHelpContextIds.LAUNCH_CONFIGURATION_DIALOG_CONNECT_TAB);
 		GridLayout topLayout = new GridLayout();
 		topLayout.marginHeight = 0;
 		comp.setLayout(topLayout);
 		GridData gd;

 		createVerticalSpacer(comp, 1);

 		Composite projComp = new Composite(comp, SWT.NONE);
 		GridLayout projLayout = new GridLayout();
 		projLayout.numColumns = 2;
 		projLayout.marginHeight = 0;
 		projLayout.marginWidth = 0;
 		projComp.setLayout(projLayout);
 		gd = new GridData(GridData.FILL_HORIZONTAL);
 		projComp.setLayoutData(gd);
 		projComp.setFont(font);

 		fProjLabel = new Label(projComp, SWT.NONE);
 		fProjLabel.setText(LauncherMessages.getString("JavaConnectTab.&Project__2")); //$NON-NLS-1$
 		gd = new GridData();
 		gd.horizontalSpan = 2;
 		fProjLabel.setLayoutData(gd);
 		fProjLabel.setFont(font);

 		fProjText = new Text(projComp, SWT.SINGLE | SWT.BORDER);
 		gd = new GridData(GridData.FILL_HORIZONTAL);
 		fProjText.setLayoutData(gd);
 		fProjText.setFont(font);
 		fProjText.addModifyListener(new ModifyListener() {
 			public void modifyText(ModifyEvent evt) {
 				updateLaunchConfigurationDialog();
 			}
 		});

 		fProjButton = createPushButton(projComp, LauncherMessages.getString("JavaConnectTab.&Browse_3"), null); //$NON-NLS-1$
 		fProjButton.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent evt) {
 				handleProjectButtonSelected();
 			}
 		});

 		Composite connectorComp = new Composite(comp,SWT.NONE);
 		GridLayout y = new GridLayout();
 		y.numColumns = 2;
 		y.marginHeight = 0;
 		y.marginWidth = 0;
 		connectorComp.setLayout(y);
 		gd = new GridData(GridData.FILL_HORIZONTAL);
 		connectorComp.setLayoutData(gd);

 		Label l = new Label(connectorComp, SWT.NONE);
 		l.setText(LauncherMessages.getString("JavaConnectTab.Connect&ion_Type__7")); //$NON-NLS-1$
 		gd = new GridData(GridData.BEGINNING);
 		gd.horizontalSpan = 2;
 		l.setLayoutData(gd);
 		l.setFont(font);

 		fConnectorCombo = new Combo(connectorComp, SWT.READ_ONLY);
 		gd = new GridData(GridData.FILL_HORIZONTAL);
 		gd.horizontalSpan = 2;
 		fConnectorCombo.setLayoutData(gd);
 		fConnectorCombo.setFont(font);
 		String[] names = new String[fConnectors.length];
 		for (int i = 0; i < fConnectors.length; i++) {
 			names[i] = fConnectors[i].getName();
 		}
 		fConnectorCombo.setItems(names);
 		fConnectorCombo.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				handleConnectorComboModified();
 			}
 		});

 		createVerticalSpacer(comp, 2);

 		Group group = new Group(comp, SWT.NONE);
 		group.setText(LauncherMessages.getString("JavaConnectTab.Connection_Properties_1")); //$NON-NLS-1$
 		group.setLayout(new GridLayout());
 		group.setFont(font);
 		gd = new GridData(GridData.GRAB_HORIZONTAL | GridData.FILL_HORIZONTAL);
 		gd.horizontalSpan = 2;
 		group.setLayoutData(gd);

 		//Add in an intermediate composite to allow for spacing
 		Composite spacingComposite = new Composite(group, SWT.NONE);
 		y = new GridLayout();
 		spacingComposite.setLayout(y);
 		gd = new GridData(GridData.GRAB_HORIZONTAL | GridData.FILL_HORIZONTAL);
 		gd.horizontalSpan = 2;
 		spacingComposite.setLayoutData(gd);
 		fArgumentComposite= spacingComposite;

 		createVerticalSpacer(comp, 2);

 		fAllowTerminateButton = new Button(comp, SWT.CHECK);
 		fAllowTerminateButton.setText(LauncherMessages.getString("JavaConnectTab.&Allow_termination_of_remote_VM_6")); //$NON-NLS-1$
 		fAllowTerminateButton.setFont(font);
 		fAllowTerminateButton.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent evt) {
 				updateLaunchConfigurationDialog();
 			}
 		});
 	}

 	/**
 	 * Update the argument area to show the selected connector's arguments
 	 */
 	protected void handleConnectorComboModified() {
 		int index = fConnectorCombo.getSelectionIndex();
 		if ( (index < 0) || (index >= fConnectors.length) ) {
 			return;
 		}
 		IVMConnector vm = fConnectors[index];
 		if (vm.equals(fConnector)) {
 			return; // selection did not change
 		}
 		fConnector = vm;
 		try {
 			fArgumentMap = vm.getDefaultArguments();
 		} catch (CoreException e) {
 			JDIDebugUIPlugin.errorDialog(LauncherMessages.getString("JavaConnectTab.Unable_to_display_connection_arguments._2"), e.getStatus()); //$NON-NLS-1$
 			return;
 		}

 		// Dispose of any current child widgets in the tab holder area
 		Control[] children = fArgumentComposite.getChildren();
 		for (int i = 0; i < children.length; i++) {
 			children[i].dispose();
 		}
 		fFieldEditorMap.clear();
 		PreferenceStore store = new PreferenceStore();
 		// create editors
 		Iterator keys = vm.getArgumentOrder().iterator();
 		while (keys.hasNext()) {
 			String key = (String)keys.next();
 			Connector.Argument arg = (Connector.Argument)fArgumentMap.get(key);
 			FieldEditor field = null;
 			if (arg instanceof Connector.IntegerArgument) {
 				store.setDefault(arg.name(), ((Connector.IntegerArgument)arg).intValue());
 				field = new IntegerFieldEditor(arg.name(), getLabel(arg.label()), fArgumentComposite);
 			} else if (arg instanceof Connector.SelectedArgument) {
 				List choices = ((Connector.SelectedArgument)arg).choices();
 				String[][] namesAndValues = new String[choices.size()][2];
 				Iterator iter = choices.iterator();
 				int count = 0;
 				while (iter.hasNext()) {
 					String choice = (String)iter.next();
 					namesAndValues[count][0] = choice;
 					namesAndValues[count][1] = choice;
 					count++;
 				}
 				store.setDefault(arg.name(), arg.value());
 				field = new ComboFieldEditor(arg.name(), getLabel(arg.label()), namesAndValues, fArgumentComposite);
 			} else if (arg instanceof Connector.StringArgument) {
 				store.setDefault(arg.name(), arg.value());
 				field = new StringFieldEditor(arg.name(), getLabel(arg.label()), fArgumentComposite);
 			} else if (arg instanceof Connector.BooleanArgument) {
 				store.setDefault(arg.name(), ((Connector.BooleanArgument)arg).booleanValue());
 				field = new BooleanFieldEditor(arg.name(), getLabel(arg.label()), fArgumentComposite);
 			}
 			field.setPreferenceStore(store);
 			field.loadDefault();
 			field.setPropertyChangeListener(this);
 			fFieldEditorMap.put(key, field);
 		}

 		fArgumentComposite.getParent().getParent().layout();
 		fArgumentComposite.layout();
 	}

 	/**
 	 * Adds a colon to the label if required
 	 */
 	protected String getLabel(String label) {
 		if (!label.endsWith(":")) { //$NON-NLS-1$
 			label += ":"; //$NON-NLS-1$
 		}
 		return label;
 	}

 	/**
 	 * @see ILaunchConfigurationTab#initializeFrom(ILaunchConfiguration)
 	 */
 	public void initializeFrom(ILaunchConfiguration config) {
 		updateProjectFromConfig(config);
 		updateAllowTerminateFromConfig(config);
 		updateConnectionFromConfig(config);
 	}

 	protected void updateProjectFromConfig(ILaunchConfiguration config) {
 		String projectName = ""; //$NON-NLS-1$
 		try {
 			projectName = config.getAttribute(IJavaLaunchConfigurationConstants.ATTR_PROJECT_NAME, EMPTY_STRING);
 		} catch (CoreException ce) {
 			JDIDebugUIPlugin.log(ce);
 		}
 		fProjText.setText(projectName);
 	}

 	protected void updateAllowTerminateFromConfig(ILaunchConfiguration config) {
 		boolean allowTerminate = false;
 		try {
 			allowTerminate = config.getAttribute(IJavaLaunchConfigurationConstants.ATTR_ALLOW_TERMINATE, false);
 		} catch (CoreException ce) {
 			JDIDebugUIPlugin.log(ce);
 		}
 		fAllowTerminateButton.setSelection(allowTerminate);
 	}

 	protected void updateConnectionFromConfig(ILaunchConfiguration config) {
 		String id = null;
 		try {
 			id = config.getAttribute(IJavaLaunchConfigurationConstants.ATTR_VM_CONNECTOR, JavaRuntime.getDefaultVMConnector().getIdentifier());
 			fConnectorCombo.setText(JavaRuntime.getVMConnector(id).getName());
 			handleConnectorComboModified();

 			Map attrMap = config.getAttribute(IJavaLaunchConfigurationConstants.ATTR_CONNECT_MAP, (Map)null);
 			if (attrMap == null) {
 				return;
 			}
 			Iterator keys = attrMap.keySet().iterator();
 			while (keys.hasNext()) {
 				String key = (String)keys.next();
 				Connector.Argument arg = (Connector.Argument)fArgumentMap.get(key);
 				FieldEditor editor = (FieldEditor)fFieldEditorMap.get(key);
 				if (arg != null && editor != null) {
 					String value = (String)attrMap.get(key);
 					if (arg instanceof Connector.StringArgument || arg instanceof Connector.SelectedArgument) {
 						editor.getPreferenceStore().setValue(key, value);
 					} else if (arg instanceof Connector.BooleanArgument) {
 						boolean b = new Boolean(value).booleanValue();
 						editor.getPreferenceStore().setValue(key, b);
 					} else if (arg instanceof Connector.IntegerArgument) {
 						int i = new Integer(value).intValue();
 						editor.getPreferenceStore().setValue(key, i);
 					}
 					editor.load();
 				}
 			}
 		} catch (CoreException ce) {
 			JDIDebugUIPlugin.log(ce);
 		}

 	}

 	/**
 	 * @see ILaunchConfigurationTab#dispose()
 	 */
 	public void dispose() {
 	}

 	/**
 	 * @see ILaunchConfigurationTab#performApply(ILaunchConfigurationWorkingCopy)
 	 */
 	public void performApply(ILaunchConfigurationWorkingCopy config) {
 		config.setAttribute(IJavaLaunchConfigurationConstants.ATTR_PROJECT_NAME, fProjText.getText().trim());
 		config.setAttribute(IJavaLaunchConfigurationConstants.ATTR_ALLOW_TERMINATE, fAllowTerminateButton.getSelection());
 		IVMConnector vmc = getSelectedConnector();
 		config.setAttribute(IJavaLaunchConfigurationConstants.ATTR_VM_CONNECTOR, vmc.getIdentifier());

 		Map attrMap = new HashMap(fFieldEditorMap.size());
 		Iterator keys = fFieldEditorMap.keySet().iterator();
 		while (keys.hasNext()) {
 			String key = (String)keys.next();
 			FieldEditor editor = (FieldEditor)fFieldEditorMap.get(key);
 			if (!editor.isValid()) {
 				return;
 			}
 			Connector.Argument arg = (Connector.Argument)fArgumentMap.get(key);
 			editor.store();
 			if (arg instanceof Connector.StringArgument || arg instanceof Connector.SelectedArgument) {
 				String value = editor.getPreferenceStore().getString(key);
 				attrMap.put(key, value);
 			} else if (arg instanceof Connector.BooleanArgument) {
 				boolean value = editor.getPreferenceStore().getBoolean(key);
 				attrMap.put(key, new Boolean(value).toString());
 			} else if (arg instanceof Connector.IntegerArgument) {
 				int value = editor.getPreferenceStore().getInt(key);
 				attrMap.put(key, new Integer(value).toString());
 			}
 		}
 		config.setAttribute(IJavaLaunchConfigurationConstants.ATTR_CONNECT_MAP, attrMap);
 	}

 	/**
 	 * Show a dialog that lets the user select a project.  This in turn provides
 	 * context for the main type, allowing the user to key a main type name, or
 	 * constraining the search for main types to the specified project.
 	 */
 	protected void handleProjectButtonSelected() {
 		IJavaProject project = chooseJavaProject();
 		if (project == null) {
 			return;
 		}

 		String projectName = project.getElementName();
 		fProjText.setText(projectName);
 	}

 	/**
 	 * Realize a Java Project selection dialog and return the first selected project,
 	 * or null if there was none.
 	 */
 	protected IJavaProject chooseJavaProject() {
 		IJavaProject[] projects;
 		try {
 			projects= JavaCore.create(getWorkspaceRoot()).getJavaProjects();
 		} catch (JavaModelException e) {
 			JDIDebugUIPlugin.log(e);
 			projects= new IJavaProject[0];
 		}

 		ILabelProvider labelProvider= new JavaElementLabelProvider(JavaElementLabelProvider.SHOW_DEFAULT);
 		ElementListSelectionDialog dialog= new ElementListSelectionDialog(getShell(), labelProvider);
 		dialog.setTitle(LauncherMessages.getString("JavaConnectTab.Project_selection_10")); //$NON-NLS-1$
 		dialog.setMessage(LauncherMessages.getString("JavaConnectTab.Choose_a_project_to_constrain_the_search_for_main_types_11")); //$NON-NLS-1$
 		dialog.setElements(projects);

 		IJavaProject javaProject = getJavaProject();
 		if (javaProject != null) {
 			dialog.setInitialSelections(new Object[] { javaProject });
 		}
 		if (dialog.open() == ElementListSelectionDialog.OK) {
 			return (IJavaProject) dialog.getFirstResult();
 		}
 		return null;
 	}

 	/**
 	 * Return the IJavaProject corresponding to the project name in the project name
 	 * text field, or null if the text does not match a project name.
 	 */
 	protected IJavaProject getJavaProject() {
 		String projectName = fProjText.getText().trim();
 		if (projectName.length() < 1) {
 			return null;
 		}
 		return getJavaModel().getJavaProject(projectName);
 	}

 	/**
 	 * Convenience method to get the workspace root.
 	 */
 	private IWorkspaceRoot getWorkspaceRoot() {
 		return ResourcesPlugin.getWorkspace().getRoot();
 	}

 	/**
 	 * Convenience method to get access to the java model.
 	 */
 	private IJavaModel getJavaModel() {
 		return JavaCore.create(getWorkspaceRoot());
 	}

 	/**
 	 * Initialize default settings for the given Java element
 	 */
 	protected void initializeDefaults(IJavaElement javaElement, ILaunchConfigurationWorkingCopy config) {
 		initializeJavaProject(javaElement, config);
 		initializeName(javaElement, config);
 		initializeHardCodedDefaults(config);
 	}

 	/**
 	 * @see ILaunchConfigurationTab#setDefaults(ILaunchConfigurationWorkingCopy)
 	 */
 	public void setDefaults(ILaunchConfigurationWorkingCopy config) {
 		IJavaElement javaElement = getContext();
 		if (javaElement == null) {
 			initializeHardCodedDefaults(config);
 		} else {
 			initializeDefaults(javaElement, config);
 		}
 	}

 	/**
 	 * Find the first instance of a type, compilation unit, class file or project in the
 	 * specified element's parental hierarchy, and use this as the default name.
 	 */
 	protected void initializeName(IJavaElement javaElement, ILaunchConfigurationWorkingCopy config) {
 		String name = ""; //$NON-NLS-1$
 		try {
 			IResource resource = javaElement.getUnderlyingResource();
 			if (resource != null) {
 				name = resource.getName();
 				int index = name.lastIndexOf('.');
 				if (index > 0) {
 					name = name.substring(0, index);
 				}
 			} else {
 				name= javaElement.getElementName();
 			}
 			name = getLaunchConfigurationDialog().generateName(name);
 		} catch (JavaModelException jme) {
 			JDIDebugUIPlugin.log(jme);
 		}
 		config.rename(name);
 	}

 	/**
 	 * Initialize those attributes whose default values are independent of any context.
 	 */
 	protected void initializeHardCodedDefaults(ILaunchConfigurationWorkingCopy config) {
 		config.setAttribute(IJavaLaunchConfigurationConstants.ATTR_ALLOW_TERMINATE, false);
 		config.setAttribute(IJavaLaunchConfigurationConstants.ATTR_VM_CONNECTOR, JavaRuntime.getDefaultVMConnector().getIdentifier());
 	}

 	/**
 	 * @see ILaunchConfigurationTab#isValid(ILaunchConfiguration)
 	 */
 	public boolean isValid(ILaunchConfiguration config) {

 		setErrorMessage(null);
 		setMessage(null);

 		// project
 		String name = fProjText.getText().trim();
 		if (name.length() > 0) {
 			if (!ResourcesPlugin.getWorkspace().getRoot().getProject(name).exists()) {
 				setErrorMessage(LauncherMessages.getString("JavaConnectTab.Project_does_not_exist_14")); //$NON-NLS-1$
 				return false;
 			}
 		}

 		Iterator keys = fFieldEditorMap.keySet().iterator();
 		while (keys.hasNext()) {
 			String key = (String)keys.next();
 			Connector.Argument arg = (Connector.Argument)fArgumentMap.get(key);
 			FieldEditor editor = (FieldEditor)fFieldEditorMap.get(key);
 			if (editor instanceof StringFieldEditor) {
 				String value = ((StringFieldEditor)editor).getStringValue();
 				if (!arg.isValid(value)) {
 					setErrorMessage(arg.label() + LauncherMessages.getString("JavaConnectTab._is_invalid._5")); //$NON-NLS-1$
 					return false;
 				}
 			}
 		}

 		return true;
 	}

 	/**
 	 * @see ILaunchConfigurationTab#getName()
 	 */
 	public String getName() {
 		return LauncherMessages.getString("JavaConnectTab.Conn&ect_20"); //$NON-NLS-1$
 	}

 	/**
 	 * @see ILaunchConfigurationTab#getImage()
 	 */
 	public Image getImage() {
 		return DebugUITools.getImage(IDebugUIConstants.IMG_LCL_DISCONNECT);
 	}

 	/**
 	 * Returns the selected connector
 	 */
 	protected IVMConnector getSelectedConnector() {
 		return fConnector;
 	}
 	/**
 	 * @see IPropertyChangeListener#propertyChange(PropertyChangeEvent)
 	 */
 	public void propertyChange(PropertyChangeEvent event) {
 		updateLaunchConfigurationDialog();
 	}
 }
	package org.eclipse.jdt.debug.ui.launchConfigurations;

	/*
	* (c) Copyright IBM Corp. 2000, 2001.
	* All Rights Reserved.
	*/

	import java.util.HashMap;
	import java.util.Iterator;
	import java.util.List;
	import java.util.Map;

	import org.eclipse.core.resources.IResource;
	import org.eclipse.core.resources.IWorkspaceRoot;
	import org.eclipse.core.resources.ResourcesPlugin;
	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.debug.core.ILaunchConfiguration;
	import org.eclipse.debug.core.ILaunchConfigurationWorkingCopy;
	import org.eclipse.debug.ui.DebugUITools;
	import org.eclipse.debug.ui.IDebugUIConstants;
	import org.eclipse.jdt.core.IJavaElement;
	import org.eclipse.jdt.core.IJavaModel;
	import org.eclipse.jdt.core.IJavaProject;
	import org.eclipse.jdt.core.JavaCore;
	import org.eclipse.jdt.core.JavaModelException;
	import org.eclipse.jdt.internal.debug.ui.IJavaDebugHelpContextIds;
	import org.eclipse.jdt.internal.debug.ui.JDIDebugUIPlugin;
	import org.eclipse.jdt.internal.debug.ui.launcher.ComboFieldEditor;
	import org.eclipse.jdt.internal.debug.ui.launcher.JavaLaunchConfigurationTab;
	import org.eclipse.jdt.internal.debug.ui.launcher.LauncherMessages;
	import org.eclipse.jdt.launching.IJavaLaunchConfigurationConstants;
	import org.eclipse.jdt.launching.IVMConnector;
	import org.eclipse.jdt.launching.JavaRuntime;
	import org.eclipse.jdt.ui.JavaElementLabelProvider;
	import org.eclipse.jface.preference.BooleanFieldEditor;
	import org.eclipse.jface.preference.FieldEditor;
	import org.eclipse.jface.preference.IntegerFieldEditor;
	import org.eclipse.jface.preference.PreferenceStore;
	import org.eclipse.jface.preference.StringFieldEditor;
	import org.eclipse.jface.util.IPropertyChangeListener;
	import org.eclipse.jface.util.PropertyChangeEvent;
	import org.eclipse.jface.viewers.ILabelProvider;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.ModifyEvent;
	import org.eclipse.swt.events.ModifyListener;
	import org.eclipse.swt.events.SelectionAdapter;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.graphics.Font;
	import org.eclipse.swt.graphics.Image;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Button;
	import org.eclipse.swt.widgets.Combo;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Control;
	import org.eclipse.swt.widgets.Group;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Text;
	import org.eclipse.ui.dialogs.ElementListSelectionDialog;
	import org.eclipse.ui.help.WorkbenchHelp;

	import com.sun.jdi.connect.Connector;

	/**
	* A launch configuration tab that displays and edits the project associated
	* with a remote connection and the connector used to connect to a remote
	* VM.
	* <p>
	* This class may be instantiated. This class is not intended to be subclassed.
	* </p>
	* @since 2.0
	*/
	public class JavaConnectTab extends JavaLaunchConfigurationTab implements IPropertyChangeListener {

	// Project UI widgets
	protected Label fProjLabel;
	protected Text fProjText;
	protected Button fProjButton;

	// Allow terminate UI widgets
	protected Button fAllowTerminateButton;

	// Connector attributes for selected connector
	protected Map fArgumentMap;
	protected Map fFieldEditorMap = new HashMap();
	protected Composite fArgumentComposite;
	// the selected connector
	protected IVMConnector fConnector;

	// Connector combo
	protected Combo fConnectorCombo;
	protected IVMConnector[] fConnectors = JavaRuntime.getVMConnectors();

	protected static final String EMPTY_STRING = ""; //$NON-NLS-1$

	/**
	* @see ILaunchConfigurationTab#createControl(Composite)
	*/
	public void createControl(Composite parent) {
	Font font = parent.getFont();

	Composite comp = new Composite(parent, SWT.NONE);
	setControl(comp);
	WorkbenchHelp.setHelp(getControl(), IJavaDebugHelpContextIds.LAUNCH_CONFIGURATION_DIALOG_CONNECT_TAB);
	GridLayout topLayout = new GridLayout();
	topLayout.marginHeight = 0;
	comp.setLayout(topLayout);
	GridData gd;

	createVerticalSpacer(comp, 1);

	Composite projComp = new Composite(comp, SWT.NONE);
	GridLayout projLayout = new GridLayout();
	projLayout.numColumns = 2;
	projLayout.marginHeight = 0;
	projLayout.marginWidth = 0;
	projComp.setLayout(projLayout);
	gd = new GridData(GridData.FILL_HORIZONTAL);
	projComp.setLayoutData(gd);
	projComp.setFont(font);

	fProjLabel = new Label(projComp, SWT.NONE);
	fProjLabel.setText(LauncherMessages.getString("JavaConnectTab.&Project__2")); //$NON-NLS-1$
	gd = new GridData();
	gd.horizontalSpan = 2;
	fProjLabel.setLayoutData(gd);
	fProjLabel.setFont(font);

	fProjText = new Text(projComp, SWT.SINGLE \| SWT.BORDER);
	gd = new GridData(GridData.FILL_HORIZONTAL);
	fProjText.setLayoutData(gd);
	fProjText.setFont(font);
	fProjText.addModifyListener(new ModifyListener() {
	public void modifyText(ModifyEvent evt) {
	updateLaunchConfigurationDialog();
	}
	});

	fProjButton = createPushButton(projComp, LauncherMessages.getString("JavaConnectTab.&Browse_3"), null); //$NON-NLS-1$
	fProjButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent evt) {
	handleProjectButtonSelected();
	}
	});

	Composite connectorComp = new Composite(comp,SWT.NONE);
	GridLayout y = new GridLayout();
	y.numColumns = 2;
	y.marginHeight = 0;
	y.marginWidth = 0;
	connectorComp.setLayout(y);
	gd = new GridData(GridData.FILL_HORIZONTAL);
	connectorComp.setLayoutData(gd);

	Label l = new Label(connectorComp, SWT.NONE);
	l.setText(LauncherMessages.getString("JavaConnectTab.Connect&ion_Type__7")); //$NON-NLS-1$
	gd = new GridData(GridData.BEGINNING);
	gd.horizontalSpan = 2;
	l.setLayoutData(gd);
	l.setFont(font);

	fConnectorCombo = new Combo(connectorComp, SWT.READ_ONLY);
	gd = new GridData(GridData.FILL_HORIZONTAL);
	gd.horizontalSpan = 2;
	fConnectorCombo.setLayoutData(gd);
	fConnectorCombo.setFont(font);
	String[] names = new String[fConnectors.length];
	for (int i = 0; i < fConnectors.length; i++) {
	names[i] = fConnectors[i].getName();
	}
	fConnectorCombo.setItems(names);
	fConnectorCombo.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	handleConnectorComboModified();
	}
	});

	createVerticalSpacer(comp, 2);

	Group group = new Group(comp, SWT.NONE);
	group.setText(LauncherMessages.getString("JavaConnectTab.Connection_Properties_1")); //$NON-NLS-1$
	group.setLayout(new GridLayout());
	group.setFont(font);
	gd = new GridData(GridData.GRAB_HORIZONTAL \| GridData.FILL_HORIZONTAL);
	gd.horizontalSpan = 2;
	group.setLayoutData(gd);

	//Add in an intermediate composite to allow for spacing
	Composite spacingComposite = new Composite(group, SWT.NONE);
	y = new GridLayout();
	spacingComposite.setLayout(y);
	gd = new GridData(GridData.GRAB_HORIZONTAL \| GridData.FILL_HORIZONTAL);
	gd.horizontalSpan = 2;
	spacingComposite.setLayoutData(gd);
	fArgumentComposite= spacingComposite;

	createVerticalSpacer(comp, 2);

	fAllowTerminateButton = new Button(comp, SWT.CHECK);
	fAllowTerminateButton.setText(LauncherMessages.getString("JavaConnectTab.&Allow_termination_of_remote_VM_6")); //$NON-NLS-1$
	fAllowTerminateButton.setFont(font);
	fAllowTerminateButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent evt) {
	updateLaunchConfigurationDialog();
	}
	});
	}

	/**
	* Update the argument area to show the selected connector's arguments
	*/
	protected void handleConnectorComboModified() {
	int index = fConnectorCombo.getSelectionIndex();
	if ( (index < 0) \|\| (index >= fConnectors.length) ) {
	return;
	}
	IVMConnector vm = fConnectors[index];
	if (vm.equals(fConnector)) {
	return; // selection did not change
	}
	fConnector = vm;
	try {
	fArgumentMap = vm.getDefaultArguments();
	} catch (CoreException e) {
	JDIDebugUIPlugin.errorDialog(LauncherMessages.getString("JavaConnectTab.Unable_to_display_connection_arguments._2"), e.getStatus()); //$NON-NLS-1$
	return;
	}

	// Dispose of any current child widgets in the tab holder area
	Control[] children = fArgumentComposite.getChildren();
	for (int i = 0; i < children.length; i++) {
	children[i].dispose();
	}
	fFieldEditorMap.clear();
	PreferenceStore store = new PreferenceStore();
	// create editors
	Iterator keys = vm.getArgumentOrder().iterator();
	while (keys.hasNext()) {
	String key = (String)keys.next();
	Connector.Argument arg = (Connector.Argument)fArgumentMap.get(key);
	FieldEditor field = null;
	if (arg instanceof Connector.IntegerArgument) {
	store.setDefault(arg.name(), ((Connector.IntegerArgument)arg).intValue());
	field = new IntegerFieldEditor(arg.name(), getLabel(arg.label()), fArgumentComposite);
	} else if (arg instanceof Connector.SelectedArgument) {
	List choices = ((Connector.SelectedArgument)arg).choices();
	String[][] namesAndValues = new String[choices.size()][2];
	Iterator iter = choices.iterator();
	int count = 0;
	while (iter.hasNext()) {
	String choice = (String)iter.next();
	namesAndValues[count][0] = choice;
	namesAndValues[count][1] = choice;
	count++;
	}
	store.setDefault(arg.name(), arg.value());
	field = new ComboFieldEditor(arg.name(), getLabel(arg.label()), namesAndValues, fArgumentComposite);
	} else if (arg instanceof Connector.StringArgument) {
	store.setDefault(arg.name(), arg.value());
	field = new StringFieldEditor(arg.name(), getLabel(arg.label()), fArgumentComposite);
	} else if (arg instanceof Connector.BooleanArgument) {
	store.setDefault(arg.name(), ((Connector.BooleanArgument)arg).booleanValue());
	field = new BooleanFieldEditor(arg.name(), getLabel(arg.label()), fArgumentComposite);
	}
	field.setPreferenceStore(store);
	field.loadDefault();
	field.setPropertyChangeListener(this);
	fFieldEditorMap.put(key, field);
	}

	fArgumentComposite.getParent().getParent().layout();
	fArgumentComposite.layout();
	}

	/**
	* Adds a colon to the label if required
	*/
	protected String getLabel(String label) {
	if (!label.endsWith(":")) { //$NON-NLS-1$
	label += ":"; //$NON-NLS-1$
	}
	return label;
	}

	/**
	* @see ILaunchConfigurationTab#initializeFrom(ILaunchConfiguration)
	*/
	public void initializeFrom(ILaunchConfiguration config) {
	updateProjectFromConfig(config);
	updateAllowTerminateFromConfig(config);
	updateConnectionFromConfig(config);
	}

	protected void updateProjectFromConfig(ILaunchConfiguration config) {
	String projectName = ""; //$NON-NLS-1$
	try {
	projectName = config.getAttribute(IJavaLaunchConfigurationConstants.ATTR_PROJECT_NAME, EMPTY_STRING);
	} catch (CoreException ce) {
	JDIDebugUIPlugin.log(ce);
	}
	fProjText.setText(projectName);
	}

	protected void updateAllowTerminateFromConfig(ILaunchConfiguration config) {
	boolean allowTerminate = false;
	try {
	allowTerminate = config.getAttribute(IJavaLaunchConfigurationConstants.ATTR_ALLOW_TERMINATE, false);
	} catch (CoreException ce) {
	JDIDebugUIPlugin.log(ce);
	}
	fAllowTerminateButton.setSelection(allowTerminate);
	}

	protected void updateConnectionFromConfig(ILaunchConfiguration config) {
	String id = null;
	try {
	id = config.getAttribute(IJavaLaunchConfigurationConstants.ATTR_VM_CONNECTOR, JavaRuntime.getDefaultVMConnector().getIdentifier());
	fConnectorCombo.setText(JavaRuntime.getVMConnector(id).getName());
	handleConnectorComboModified();

	Map attrMap = config.getAttribute(IJavaLaunchConfigurationConstants.ATTR_CONNECT_MAP, (Map)null);
	if (attrMap == null) {
	return;
	}
	Iterator keys = attrMap.keySet().iterator();
	while (keys.hasNext()) {
	String key = (String)keys.next();
	Connector.Argument arg = (Connector.Argument)fArgumentMap.get(key);
	FieldEditor editor = (FieldEditor)fFieldEditorMap.get(key);
	if (arg != null && editor != null) {
	String value = (String)attrMap.get(key);
	if (arg instanceof Connector.StringArgument \|\| arg instanceof Connector.SelectedArgument) {
	editor.getPreferenceStore().setValue(key, value);
	} else if (arg instanceof Connector.BooleanArgument) {
	boolean b = new Boolean(value).booleanValue();
	editor.getPreferenceStore().setValue(key, b);
	} else if (arg instanceof Connector.IntegerArgument) {
	int i = new Integer(value).intValue();
	editor.getPreferenceStore().setValue(key, i);
	}
	editor.load();
	}
	}
	} catch (CoreException ce) {
	JDIDebugUIPlugin.log(ce);
	}

	}

	/**
	* @see ILaunchConfigurationTab#dispose()
	*/
	public void dispose() {
	}

	/**
	* @see ILaunchConfigurationTab#performApply(ILaunchConfigurationWorkingCopy)
	*/
	public void performApply(ILaunchConfigurationWorkingCopy config) {
	config.setAttribute(IJavaLaunchConfigurationConstants.ATTR_PROJECT_NAME, fProjText.getText().trim());
	config.setAttribute(IJavaLaunchConfigurationConstants.ATTR_ALLOW_TERMINATE, fAllowTerminateButton.getSelection());
	IVMConnector vmc = getSelectedConnector();
	config.setAttribute(IJavaLaunchConfigurationConstants.ATTR_VM_CONNECTOR, vmc.getIdentifier());

	Map attrMap = new HashMap(fFieldEditorMap.size());
	Iterator keys = fFieldEditorMap.keySet().iterator();
	while (keys.hasNext()) {
	String key = (String)keys.next();
	FieldEditor editor = (FieldEditor)fFieldEditorMap.get(key);
	if (!editor.isValid()) {
	return;
	}
	Connector.Argument arg = (Connector.Argument)fArgumentMap.get(key);
	editor.store();
	if (arg instanceof Connector.StringArgument \|\| arg instanceof Connector.SelectedArgument) {
	String value = editor.getPreferenceStore().getString(key);
	attrMap.put(key, value);
	} else if (arg instanceof Connector.BooleanArgument) {
	boolean value = editor.getPreferenceStore().getBoolean(key);
	attrMap.put(key, new Boolean(value).toString());
	} else if (arg instanceof Connector.IntegerArgument) {
	int value = editor.getPreferenceStore().getInt(key);
	attrMap.put(key, new Integer(value).toString());
	}
	}
	config.setAttribute(IJavaLaunchConfigurationConstants.ATTR_CONNECT_MAP, attrMap);
	}

	/**
	* Show a dialog that lets the user select a project. This in turn provides
	* context for the main type, allowing the user to key a main type name, or
	* constraining the search for main types to the specified project.
	*/
	protected void handleProjectButtonSelected() {
	IJavaProject project = chooseJavaProject();
	if (project == null) {
	return;
	}

	String projectName = project.getElementName();
	fProjText.setText(projectName);
	}

	/**
	* Realize a Java Project selection dialog and return the first selected project,
	* or null if there was none.
	*/
	protected IJavaProject chooseJavaProject() {
	IJavaProject[] projects;
	try {
	projects= JavaCore.create(getWorkspaceRoot()).getJavaProjects();
	} catch (JavaModelException e) {
	JDIDebugUIPlugin.log(e);
	projects= new IJavaProject[0];
	}

	ILabelProvider labelProvider= new JavaElementLabelProvider(JavaElementLabelProvider.SHOW_DEFAULT);
	ElementListSelectionDialog dialog= new ElementListSelectionDialog(getShell(), labelProvider);
	dialog.setTitle(LauncherMessages.getString("JavaConnectTab.Project_selection_10")); //$NON-NLS-1$
	dialog.setMessage(LauncherMessages.getString("JavaConnectTab.Choose_a_project_to_constrain_the_search_for_main_types_11")); //$NON-NLS-1$
	dialog.setElements(projects);

	IJavaProject javaProject = getJavaProject();
	if (javaProject != null) {
	dialog.setInitialSelections(new Object[] { javaProject });
	}
	if (dialog.open() == ElementListSelectionDialog.OK) {
	return (IJavaProject) dialog.getFirstResult();
	}
	return null;
	}

	/**
	* Return the IJavaProject corresponding to the project name in the project name
	* text field, or null if the text does not match a project name.
	*/
	protected IJavaProject getJavaProject() {
	String projectName = fProjText.getText().trim();
	if (projectName.length() < 1) {
	return null;
	}
	return getJavaModel().getJavaProject(projectName);
	}

	/**
	* Convenience method to get the workspace root.
	*/
	private IWorkspaceRoot getWorkspaceRoot() {
	return ResourcesPlugin.getWorkspace().getRoot();
	}

	/**
	* Convenience method to get access to the java model.
	*/
	private IJavaModel getJavaModel() {
	return JavaCore.create(getWorkspaceRoot());
	}

	/**
	* Initialize default settings for the given Java element
	*/
	protected void initializeDefaults(IJavaElement javaElement, ILaunchConfigurationWorkingCopy config) {
	initializeJavaProject(javaElement, config);
	initializeName(javaElement, config);
	initializeHardCodedDefaults(config);
	}

	/**
	* @see ILaunchConfigurationTab#setDefaults(ILaunchConfigurationWorkingCopy)
	*/
	public void setDefaults(ILaunchConfigurationWorkingCopy config) {
	IJavaElement javaElement = getContext();
	if (javaElement == null) {
	initializeHardCodedDefaults(config);
	} else {
	initializeDefaults(javaElement, config);
	}
	}

	/**
	* Find the first instance of a type, compilation unit, class file or project in the
	* specified element's parental hierarchy, and use this as the default name.
	*/
	protected void initializeName(IJavaElement javaElement, ILaunchConfigurationWorkingCopy config) {
	String name = ""; //$NON-NLS-1$
	try {
	IResource resource = javaElement.getUnderlyingResource();
	if (resource != null) {
	name = resource.getName();
	int index = name.lastIndexOf('.');
	if (index > 0) {
	name = name.substring(0, index);
	}
	} else {
	name= javaElement.getElementName();
	}
	name = getLaunchConfigurationDialog().generateName(name);
	} catch (JavaModelException jme) {
	JDIDebugUIPlugin.log(jme);
	}
	config.rename(name);
	}

	/**
	* Initialize those attributes whose default values are independent of any context.
	*/
	protected void initializeHardCodedDefaults(ILaunchConfigurationWorkingCopy config) {
	config.setAttribute(IJavaLaunchConfigurationConstants.ATTR_ALLOW_TERMINATE, false);
	config.setAttribute(IJavaLaunchConfigurationConstants.ATTR_VM_CONNECTOR, JavaRuntime.getDefaultVMConnector().getIdentifier());
	}

	/**
	* @see ILaunchConfigurationTab#isValid(ILaunchConfiguration)
	*/
	public boolean isValid(ILaunchConfiguration config) {

	setErrorMessage(null);
	setMessage(null);

	// project
	String name = fProjText.getText().trim();
	if (name.length() > 0) {
	if (!ResourcesPlugin.getWorkspace().getRoot().getProject(name).exists()) {
	setErrorMessage(LauncherMessages.getString("JavaConnectTab.Project_does_not_exist_14")); //$NON-NLS-1$
	return false;
	}
	}

	Iterator keys = fFieldEditorMap.keySet().iterator();
	while (keys.hasNext()) {
	String key = (String)keys.next();
	Connector.Argument arg = (Connector.Argument)fArgumentMap.get(key);
	FieldEditor editor = (FieldEditor)fFieldEditorMap.get(key);
	if (editor instanceof StringFieldEditor) {
	String value = ((StringFieldEditor)editor).getStringValue();
	if (!arg.isValid(value)) {
	setErrorMessage(arg.label() + LauncherMessages.getString("JavaConnectTab._is_invalid._5")); //$NON-NLS-1$
	return false;
	}
	}
	}

	return true;
	}

	/**
	* @see ILaunchConfigurationTab#getName()
	*/
	public String getName() {
	return LauncherMessages.getString("JavaConnectTab.Conn&ect_20"); //$NON-NLS-1$
	}

	/**
	* @see ILaunchConfigurationTab#getImage()
	*/
	public Image getImage() {
	return DebugUITools.getImage(IDebugUIConstants.IMG_LCL_DISCONNECT);
	}

	/**
	* Returns the selected connector
	*/
	protected IVMConnector getSelectedConnector() {
	return fConnector;
	}
	/**
	* @see IPropertyChangeListener#propertyChange(PropertyChangeEvent)
	*/
	public void propertyChange(PropertyChangeEvent event) {
	updateLaunchConfigurationDialog();
	}
	}