org.eclipse.jdt.debug.ui/ui/org/eclipse/jdt/internal/debug/ui/launcher/AddVMDialog.java - jdt/eclipse.jdt.debug - Git at Google

 /*
  * (c) Copyright IBM Corp. 2000, 2001.
  * All Rights Reserved.
  */
 package org.eclipse.jdt.internal.debug.ui.launcher;

 import java.io.File;
 import java.io.IOException;
 import java.util.Enumeration;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipFile;

 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Path;
 import org.eclipse.jdt.internal.debug.ui.IHelpContextIds;
 import org.eclipse.jdt.internal.ui.IUIConstants;
 import org.eclipse.jdt.internal.ui.JavaPlugin;
 import org.eclipse.jdt.internal.ui.dialogs.StatusDialog;
 import org.eclipse.jdt.internal.ui.dialogs.StatusInfo;
 import org.eclipse.jdt.internal.ui.dialogs.StatusUtil;
 import org.eclipse.jdt.internal.ui.wizards.buildpaths.ArchiveFileFilter;
 import org.eclipse.jdt.internal.ui.wizards.dialogfields.ComboDialogField;
 import org.eclipse.jdt.internal.ui.wizards.dialogfields.DialogField;
 import org.eclipse.jdt.internal.ui.wizards.dialogfields.IDialogFieldListener;
 import org.eclipse.jdt.internal.ui.wizards.dialogfields.IStringButtonAdapter;
 import org.eclipse.jdt.internal.ui.wizards.dialogfields.SelectionButtonDialogField;
 import org.eclipse.jdt.internal.ui.wizards.dialogfields.StringButtonDialogField;
 import org.eclipse.jdt.internal.ui.wizards.dialogfields.StringDialogField;
 import org.eclipse.jdt.internal.ui.wizards.swt.MGridLayout;
 import org.eclipse.jdt.launching.IVMInstall;
 import org.eclipse.jdt.launching.IVMInstallType;
 import org.eclipse.jdt.launching.LibraryLocation;
 import org.eclipse.jface.dialogs.IDialogSettings;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.DirectoryDialog;
 import org.eclipse.swt.widgets.FileDialog;
 import org.eclipse.swt.widgets.Shell;
 import org.eclipse.ui.help.WorkbenchHelp;

 public class AddVMDialog extends StatusDialog {
 	private static final String JAVA_LANG_OBJECT= "java/lang/Object.java"; //$NON-NLS-1$

 	private IAddVMDialogRequestor fRequestor;

 	private IVMInstall fEditedVM;

 	private IVMInstallType[] fVMTypes;
 	private IVMInstallType fSelectedVMType;

 	private ComboDialogField fVMTypeCombo;

 	private StringButtonDialogField fJDKRoot;
 	private StringDialogField fVMName;
 	private StringDialogField fDebuggerTimeout;
 	private StringButtonDialogField fSystemLibrary;
 	private StringButtonDialogField fSystemLibrarySource;

 	private SelectionButtonDialogField fUseDefaultLibrary;

 	private IDialogSettings fDialogSettings;

 	private IStatus[] fStati;

 	public AddVMDialog(IAddVMDialogRequestor requestor, Shell shell, IVMInstallType[] vmInstallTypes, IVMInstall editedVM) {
 		super(shell);
 		fRequestor= requestor;
 		fStati= new IStatus[5];
 		for (int i= 0; i < fStati.length; i++) {
 			fStati[i]= new StatusInfo();
 		}

 		fVMTypes= vmInstallTypes;
 		fSelectedVMType= editedVM != null ? editedVM.getVMInstallType() : vmInstallTypes[0];

 		fEditedVM= editedVM;

 		fDialogSettings= JavaPlugin.getDefault().getDialogSettings();
 	}

 	/**
 	 * @see Windows#configureShell
 	 */
 	protected void configureShell(Shell newShell) {
 		super.configureShell(newShell);
 		WorkbenchHelp.setHelp(newShell, new Object[] { IHelpContextIds.EDIT_JRE_DIALOG });
 	}


 	protected void createDialogFields() {
 		fVMTypeCombo= new ComboDialogField(SWT.READ_ONLY);
 		fVMTypeCombo.setLabelText(LauncherMessages.getString("addVMDialog.jreType")); //$NON-NLS-1$
 		fVMTypeCombo.setDialogFieldListener(new IDialogFieldListener() {
 			public void dialogFieldChanged(DialogField field) {
 				updateVMType();
 			}
 		});

 		fVMName= new StringDialogField();
 		fVMName.setLabelText(LauncherMessages.getString("addVMDialog.jreName")); //$NON-NLS-1$
 		fVMName.setDialogFieldListener(new IDialogFieldListener() {
 			public void dialogFieldChanged(DialogField field) {
 				fStati[0]= validateVMName();
 				updateStatusLine();
 			}
 		});

 		fJDKRoot= new StringButtonDialogField(new IStringButtonAdapter() {
 			public void changeControlPressed(DialogField field) {
 				browseForInstallDir();
 			}
 		});
 		fJDKRoot.setLabelText(LauncherMessages.getString("addVMDialog.jreHome")); //$NON-NLS-1$
 		fJDKRoot.setButtonLabel(LauncherMessages.getString("addVMDialog.browse1")); //$NON-NLS-1$
 		fJDKRoot.setDialogFieldListener(new IDialogFieldListener() {
 			public void dialogFieldChanged(DialogField field) {
 				fStati[1]= validateJDKLocation();
 				updateStatusLine();
 				if (!isCustomLibraryUsed()) {
 					updateLibraryFieldDefaults();
 				}
 			}
 		});

 		fDebuggerTimeout= new StringDialogField();
 		fDebuggerTimeout.setLabelText(LauncherMessages.getString("addVMDialog.dbgTimeout")); //$NON-NLS-1$
 		fDebuggerTimeout.setDialogFieldListener(new IDialogFieldListener() {
 			public void dialogFieldChanged(DialogField field) {
 				fStati[2]= validateDebuggerTimeout();
 				updateStatusLine();
 			}
 		});

 		fUseDefaultLibrary= new SelectionButtonDialogField(SWT.CHECK);
 		fUseDefaultLibrary.setLabelText(LauncherMessages.getString("addVMDialog.useDefault")); //$NON-NLS-1$
 		fUseDefaultLibrary.setDialogFieldListener(new IDialogFieldListener() {
 			public void dialogFieldChanged(DialogField field) {
 				updateDefaultButton();
 			}
 		});


 		fSystemLibrary= new StringButtonDialogField(new IStringButtonAdapter() {
 			public void changeControlPressed(DialogField field) {
 				browseForSystemLibrary();
 			}
 		});
 		fSystemLibrary.setLabelText(LauncherMessages.getString("addVMDialog.jreJar")); //$NON-NLS-1$
 		fSystemLibrary.setButtonLabel(LauncherMessages.getString("addVMDialog.browse2")); //$NON-NLS-1$
 		fSystemLibrary.setDialogFieldListener(new IDialogFieldListener() {
 			public void dialogFieldChanged(DialogField field) {
 				fStati[3]= validateSystemLibrary();
 				updateStatusLine();
 			}
 		});

 		fSystemLibrarySource= new StringButtonDialogField(new IStringButtonAdapter() {
 			public void changeControlPressed(DialogField field) {
 				browseForSystemLibrarySource();
 			}
 		});

 		fSystemLibrarySource.setLabelText(LauncherMessages.getString("addVMDialog.jreSource")); //$NON-NLS-1$
 		fSystemLibrarySource.setButtonLabel(LauncherMessages.getString("addVMDialog.browse3")); //$NON-NLS-1$
 		fSystemLibrarySource.setDialogFieldListener(new IDialogFieldListener() {
 			public void dialogFieldChanged(DialogField field) {
 				fStati[4]= validateSystemLibrarySource();
 				updateStatusLine();
 			}
 		});
 	}

 	protected String getVMName() {
 		return fVMName.getText();
 	}

 	protected File getInstallLocation() {
 		return new File(fJDKRoot.getText());
 	}

 	protected int getTimeout() {
 		return Integer.valueOf(fDebuggerTimeout.getText()).intValue();
 	}

 	protected Control createDialogArea(Composite ancestor) {
 		createDialogFields();
 		Composite parent= new Composite(ancestor, SWT.NULL);
 		MGridLayout layout= new MGridLayout();
 		layout.numColumns= 3;
 		layout.minimumWidth= convertWidthInCharsToPixels(80);
 		parent.setLayout(layout);

 		fVMTypeCombo.doFillIntoGrid(parent, 3);
 		fVMName.doFillIntoGrid(parent, 3);
 		fJDKRoot.doFillIntoGrid(parent, 3);
 		fDebuggerTimeout.doFillIntoGrid(parent, 3);

 		fUseDefaultLibrary.doFillIntoGrid(parent, 3);

 		fSystemLibrary.doFillIntoGrid(parent, 3);
 		fSystemLibrarySource.doFillIntoGrid(parent, 3);

 		initializeFields();

 		return parent;
 	}

 	private void updateVMType() {
 		int selIndex= fVMTypeCombo.getSelectionIndex();
 		if (selIndex >= 0 && selIndex < fVMTypes.length) {
 			fSelectedVMType= fVMTypes[selIndex];
 		}
 		fStati[1]= validateJDKLocation();
 		updateDefaultButton();
 		updateStatusLine();
 	}


 	private void updateDefaultButton() {
 		if (fUseDefaultLibrary.isSelected()) {
 			useDefaultSystemLibrary();
 		} else {
 			useCustomSystemLibrary(null);
 		}
 	}


 	public void create() {
 		super.create();
 		fVMName.setFocus();
 		selectVMType();
 	}

 	private String[] getVMTypeNames() {
 		String[] names=  new String[fVMTypes.length];
 		for (int i= 0; i < fVMTypes.length; i++) {
 			names[i]= fVMTypes[i].getName();
 		}
 		return names;
 	}

 	private void selectVMType() {
 		for (int i= 0; i < fVMTypes.length; i++) {
 			if (fSelectedVMType == fVMTypes[i]) {
 				fVMTypeCombo.selectItem(i);
 				return;
 			}
 		}
 	}

 	private void initializeFields() {
 		fVMTypeCombo.setItems(getVMTypeNames());
 		if (fEditedVM == null) {
 			fVMName.setText(""); //$NON-NLS-1$
 			fJDKRoot.setText(""); //$NON-NLS-1$
 			fDebuggerTimeout.setText("3000"); //$NON-NLS-1$
 			fUseDefaultLibrary.setSelection(true);
 			useDefaultSystemLibrary();
 		} else {
 			fVMTypeCombo.setEnabled(false);
 			fVMName.setText(fEditedVM.getName());
 			fJDKRoot.setText(fEditedVM.getInstallLocation().getAbsolutePath());
 			fDebuggerTimeout.setText(String.valueOf(fEditedVM.getDebuggerTimeout()));
 			LibraryLocation desc= fEditedVM.getLibraryLocation();
 			fUseDefaultLibrary.setSelection(desc == null);
 			if (desc == null) {
 				useDefaultSystemLibrary();
 			} else {
 				useCustomSystemLibrary(desc);
 			}
 		}
 	}

 	private IVMInstallType getVMType() {
 		return fSelectedVMType;
 	}


 	private IStatus validateJDKLocation() {
 		String locationName= fJDKRoot.getText();
 		if (locationName.length() == 0) {//$NON-NLS-1$
 			return new StatusInfo(IStatus.ERROR, LauncherMessages.getString("addVMDialog.enterLocation")); //$NON-NLS-1$
 		}
 		File file= new File(locationName);
 		if (!file.exists()) {
 			return new StatusInfo(IStatus.ERROR, LauncherMessages.getString("addVMDialog.locationNotExists")); //$NON-NLS-1$
 		}
 		return getVMType().validateInstallLocation(file);
 	}

 	private IStatus validateVMName() {
 		StatusInfo status= new StatusInfo();
 		String name= fVMName.getText();
 		if (name == null || "".equals(name.trim())) { //$NON-NLS-1$
 			status.setError(LauncherMessages.getString("addVMDialog.enterName")); //$NON-NLS-1$
 		} else {
 			IVMInstallType type= getVMType();
 			if (fRequestor.isDuplicateName(type, name) && (fEditedVM == null || !name.equals(fEditedVM.getName()))) {
 				status.setError(LauncherMessages.getString("addVMDialog.duplicateName")); //$NON-NLS-1$
 			}
 		}
 		return status;
 	}

 	private IStatus validateDebuggerTimeout() {
 		StatusInfo status= new StatusInfo();
 		String timeoutText= fDebuggerTimeout.getText();
 		long timeout= 0;
 		try {
 			timeout= Long.valueOf(timeoutText).longValue();
 			if (timeout < 0) {
 				status.setError(LauncherMessages.getString("addVMDialog.timeoutSmall")); //$NON-NLS-1$
 			} else if (timeout > Integer.MAX_VALUE) {
 				status.setError(LauncherMessages.getFormattedString("addVMDialog.timeoutLarge", Integer.toString(Integer.MAX_VALUE))); //$NON-NLS-1$
 			}
 		} catch (NumberFormatException e) {
 			status.setError(LauncherMessages.getString("addVMDialog.timeoutNotANumber")); //$NON-NLS-1$
 		}
 		return status;

 	}

 	private void updateStatusLine() {
 		updateStatus(StatusUtil.getMostSevere(fStati));
 	}

 	private void updateLibraryFieldDefaults() {
 		String libJar= ""; //$NON-NLS-1$
 		String srcJar= ""; //$NON-NLS-1$
 		if (StatusUtil.getMostSevere(fStati).getSeverity() != IStatus.ERROR) {
 			LibraryLocation location= fSelectedVMType.getDefaultLibraryLocation(getInstallLocation());
 			IPath systemLibraryPath= location.getSystemLibraryPath();
 			if (systemLibraryPath.toFile().isFile()) {
 				libJar= systemLibraryPath.toOSString();
 			}

 			IPath librarySourcePath= location.getSystemLibrarySourcePath();
 			if (librarySourcePath.toFile().isFile()) {
 				srcJar= librarySourcePath.toOSString();
 			}
 		}
 		fSystemLibrary.setText(libJar);
 		fSystemLibrarySource.setText(srcJar);
 	}

 	private IStatus validateSystemLibrary() {
 		int flag= IStatus.ERROR;
 		if (!isCustomLibraryUsed())
 			flag= IStatus.WARNING;

 		String locationName= fSystemLibrary.getText();
 		if (locationName == null || "".equals(locationName)) //$NON-NLS-1$
 			return new StatusInfo(flag, LauncherMessages.getString("addVMDialog.missingJREJar")); //$NON-NLS-1$

 		File f= new File(locationName);
 		if (!f.isFile())
 			return new StatusInfo(flag, LauncherMessages.getString("addVMDialog.missingJREJar")); //$NON-NLS-1$
 		try {
 			ZipFile zip= null;
 			try {
 				zip= new ZipFile(f);
 				ZipEntry e= zip.getEntry("java/lang/Object.class"); //$NON-NLS-1$
 				if (e == null)
 					return new StatusInfo(flag, LauncherMessages.getString("addVMDialog.noObjectClass")); //$NON-NLS-1$
 			} catch (IOException e) {
 				JavaPlugin.log(e);
 				return new StatusInfo(flag, LauncherMessages.getString("addVMDialog.jreJarException")); //$NON-NLS-1$
 			} finally {
 				if (zip != null)
 					zip.close();
 			}
 		} catch (IOException e) {
 			JavaPlugin.log(e);
 		}
 		return new StatusInfo();
 	}

 	private boolean isCustomLibraryUsed() {
 		return !fUseDefaultLibrary.isSelected();
 	}

 	private IStatus validateSystemLibrarySource() {
 		StatusInfo status= new StatusInfo();

 		String locationName= fSystemLibrarySource.getText();
 		if (locationName.length() == 0) {
 			return status;
 		}

 		File f= new File(locationName);
 		if (!f.isFile()) {
 			status.setError(LauncherMessages.getString("addVMDialog.missingJRESource")); //$NON-NLS-1$
 		} else {
 			if (determinePackagePrefix(new Path(locationName)) == null) {
 				status.setError(LauncherMessages.getString("addVMDialog.noObjectSource")); //$NON-NLS-1$
 			}
 		}
 		return status;
 	}

 	/**
 	 * try finding the package prefix
 	 */
 	private IPath determinePackagePrefix(IPath sourceJar) {
 		if (sourceJar.isEmpty() || !sourceJar.toFile().isFile()) {
 			return null;
 		}
 		ZipFile zip= null;
 		try {
 			zip= new ZipFile(sourceJar.toFile());
 			Enumeration zipEntries= zip.entries();
 			while (zipEntries.hasMoreElements()) {
 				ZipEntry entry= (ZipEntry) zipEntries.nextElement();
 				String name= entry.getName();
 				if (name.endsWith(JAVA_LANG_OBJECT)) {
 					String prefix= name.substring(0, name.length() - JAVA_LANG_OBJECT.length());
 					if (prefix.endsWith("/")) //$NON-NLS-1$
 						prefix= prefix.substring(0, prefix.length() - 1);
 					return new Path(prefix);
 				}
 			}
 		} catch (IOException e) {
 			JavaPlugin.log(e);
 		} finally {
 			if (zip != null) {
 				try { zip.close(); } catch (IOException e) {};
 			}
 		}
 		return null;
 	}

 	private void browseForInstallDir() {
 		DirectoryDialog dialog= new DirectoryDialog(getShell());
 		dialog.setFilterPath(fJDKRoot.getText());
 		dialog.setMessage(LauncherMessages.getString("addVMDialog.pickJRERootDialog.message")); //$NON-NLS-1$
 		String newPath= dialog.open();
 		if  (newPath != null)
 			fJDKRoot.setText(newPath);
 	}

 	private void browseForSystemLibrary() {
 		String currPath= fSystemLibrary.getText();
 		String lastUsedDir;
 		if (currPath.length() == 0) {
 			lastUsedDir= fDialogSettings.get(IUIConstants.DIALOGSTORE_LASTEXTJAR);
 			if (lastUsedDir == null) {
 				lastUsedDir= fJDKRoot.getText();
 			}
 		} else {
 			IPath prevPath= new Path(currPath);
 			if (ArchiveFileFilter.isArchivePath(prevPath)) {
 				prevPath= prevPath.removeLastSegments(1);
 			}
 			lastUsedDir= prevPath.toOSString();
 		}

 		FileDialog dialog= new FileDialog(getShell());
 		dialog.setFilterPath(lastUsedDir);
 		dialog.setText(LauncherMessages.getString("addVMDialog.pickJREJarDialog.text")); //$NON-NLS-1$
 		dialog.setFilterExtensions(new String[] { "*.jar;*.zip"}); //$NON-NLS-2$ //$NON-NLS-1$
 		String newPath= dialog.open();
 		if  (newPath != null) {
 			fSystemLibrary.setText(newPath);
 			fDialogSettings.put(IUIConstants.DIALOGSTORE_LASTEXTJAR, dialog.getFilterPath());
 		}
 	}

 	private void browseForSystemLibrarySource() {
 		String currPath= fSystemLibrarySource.getText();
 		String lastUsedDir;
 		if (currPath.length() == 0) {
 			currPath= fSystemLibrary.getText();
 		}
 		if (currPath.length() == 0) {
 			lastUsedDir= fJDKRoot.getText();
 		} else {
 			IPath prevPath= new Path(currPath);
 			if (ArchiveFileFilter.isArchivePath(prevPath)) {
 				prevPath= prevPath.removeLastSegments(1);
 			}
 			lastUsedDir= prevPath.toOSString();
 		}

 		FileDialog dialog= new FileDialog(getShell());
 		dialog.setFilterPath(lastUsedDir);
 		dialog.setText(LauncherMessages.getString("addVMDialog.pickJRESourceDialog.text")); //$NON-NLS-1$
 		dialog.setFilterExtensions(new String[] { "*.jar;*.zip"}); //$NON-NLS-1$
 		String newPath= dialog.open();
 		if  (newPath != null)
 			fSystemLibrarySource.setText(newPath);
 	}

 	private void useDefaultSystemLibrary() {
 		updateLibraryFieldDefaults();
 		fSystemLibrary.setEnabled(false);
 		fSystemLibrarySource.setEnabled(false);
 	}

 	private void useCustomSystemLibrary(LibraryLocation newValues) {
 		fSystemLibrary.setEnabled(true);
 		fSystemLibrarySource.setEnabled(true);
 		if (newValues != null) {
 			fSystemLibrary.setText(newValues.getSystemLibraryPath().toOSString());
 			fSystemLibrarySource.setText(newValues.getSystemLibrarySourcePath().toOSString());
 		}
 	}

 	protected void okPressed() {
 		doOkPressed();
 		super.okPressed();
 	}

 	private void doOkPressed() {
 		if (fEditedVM == null) {
 			IVMInstall vm= new VMStandin(fSelectedVMType, createUniqueId(fSelectedVMType));
 			setFieldValuesToVM(vm);
 			fRequestor.vmAdded(vm);
 		} else {
 			setFieldValuesToVM(fEditedVM);
 		}
 	}

 	private String createUniqueId(IVMInstallType vmType) {
 		String id= null;
 		do {
 			id= String.valueOf(System.currentTimeMillis());
 		} while (vmType.findVMInstall(id) != null);
 		return id;
 	}


 	protected void setFieldValuesToVM(IVMInstall vm) {
 		vm.setInstallLocation(new File(fJDKRoot.getText()).getAbsoluteFile());
 		vm.setName(fVMName.getText());
 		vm.setDebuggerTimeout(getTimeout());
 		if (isCustomLibraryUsed()) {
 			IPath systemLibrary= new Path(fSystemLibrary.getText());
 			IPath source= new Path(fSystemLibrarySource.getText());
 			IPath sourceRoot= determinePackagePrefix(source);
 			if (sourceRoot == null) {
 				sourceRoot= Path.EMPTY;
 			}
 			vm.setLibraryLocation(new LibraryLocation(systemLibrary, source, sourceRoot));
 		} else {
 			vm.setLibraryLocation(null);
 		}
 	}

 	protected File getAbsoluteFileOrEmpty(String path) {
 		if (path == null || "".equals(path)) //$NON-NLS-1$
 			return new File(""); //$NON-NLS-1$
 		return new File(path).getAbsoluteFile();
 	}
 }
	/*
	* (c) Copyright IBM Corp. 2000, 2001.
	* All Rights Reserved.
	*/
	package org.eclipse.jdt.internal.debug.ui.launcher;

	import java.io.File;
	import java.io.IOException;
	import java.util.Enumeration;
	import java.util.zip.ZipEntry;
	import java.util.zip.ZipFile;

	import org.eclipse.core.runtime.IPath;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.Path;
	import org.eclipse.jdt.internal.debug.ui.IHelpContextIds;
	import org.eclipse.jdt.internal.ui.IUIConstants;
	import org.eclipse.jdt.internal.ui.JavaPlugin;
	import org.eclipse.jdt.internal.ui.dialogs.StatusDialog;
	import org.eclipse.jdt.internal.ui.dialogs.StatusInfo;
	import org.eclipse.jdt.internal.ui.dialogs.StatusUtil;
	import org.eclipse.jdt.internal.ui.wizards.buildpaths.ArchiveFileFilter;
	import org.eclipse.jdt.internal.ui.wizards.dialogfields.ComboDialogField;
	import org.eclipse.jdt.internal.ui.wizards.dialogfields.DialogField;
	import org.eclipse.jdt.internal.ui.wizards.dialogfields.IDialogFieldListener;
	import org.eclipse.jdt.internal.ui.wizards.dialogfields.IStringButtonAdapter;
	import org.eclipse.jdt.internal.ui.wizards.dialogfields.SelectionButtonDialogField;
	import org.eclipse.jdt.internal.ui.wizards.dialogfields.StringButtonDialogField;
	import org.eclipse.jdt.internal.ui.wizards.dialogfields.StringDialogField;
	import org.eclipse.jdt.internal.ui.wizards.swt.MGridLayout;
	import org.eclipse.jdt.launching.IVMInstall;
	import org.eclipse.jdt.launching.IVMInstallType;
	import org.eclipse.jdt.launching.LibraryLocation;
	import org.eclipse.jface.dialogs.IDialogSettings;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Control;
	import org.eclipse.swt.widgets.DirectoryDialog;
	import org.eclipse.swt.widgets.FileDialog;
	import org.eclipse.swt.widgets.Shell;
	import org.eclipse.ui.help.WorkbenchHelp;

	public class AddVMDialog extends StatusDialog {
	private static final String JAVA_LANG_OBJECT= "java/lang/Object.java"; //$NON-NLS-1$

	private IAddVMDialogRequestor fRequestor;

	private IVMInstall fEditedVM;

	private IVMInstallType[] fVMTypes;
	private IVMInstallType fSelectedVMType;

	private ComboDialogField fVMTypeCombo;

	private StringButtonDialogField fJDKRoot;
	private StringDialogField fVMName;
	private StringDialogField fDebuggerTimeout;
	private StringButtonDialogField fSystemLibrary;
	private StringButtonDialogField fSystemLibrarySource;

	private SelectionButtonDialogField fUseDefaultLibrary;

	private IDialogSettings fDialogSettings;

	private IStatus[] fStati;

	public AddVMDialog(IAddVMDialogRequestor requestor, Shell shell, IVMInstallType[] vmInstallTypes, IVMInstall editedVM) {
	super(shell);
	fRequestor= requestor;
	fStati= new IStatus[5];
	for (int i= 0; i < fStati.length; i++) {
	fStati[i]= new StatusInfo();
	}

	fVMTypes= vmInstallTypes;
	fSelectedVMType= editedVM != null ? editedVM.getVMInstallType() : vmInstallTypes[0];

	fEditedVM= editedVM;

	fDialogSettings= JavaPlugin.getDefault().getDialogSettings();
	}

	/**
	* @see Windows#configureShell
	*/
	protected void configureShell(Shell newShell) {
	super.configureShell(newShell);
	WorkbenchHelp.setHelp(newShell, new Object[] { IHelpContextIds.EDIT_JRE_DIALOG });
	}


	protected void createDialogFields() {
	fVMTypeCombo= new ComboDialogField(SWT.READ_ONLY);
	fVMTypeCombo.setLabelText(LauncherMessages.getString("addVMDialog.jreType")); //$NON-NLS-1$
	fVMTypeCombo.setDialogFieldListener(new IDialogFieldListener() {
	public void dialogFieldChanged(DialogField field) {
	updateVMType();
	}
	});

	fVMName= new StringDialogField();
	fVMName.setLabelText(LauncherMessages.getString("addVMDialog.jreName")); //$NON-NLS-1$
	fVMName.setDialogFieldListener(new IDialogFieldListener() {
	public void dialogFieldChanged(DialogField field) {
	fStati[0]= validateVMName();
	updateStatusLine();
	}
	});

	fJDKRoot= new StringButtonDialogField(new IStringButtonAdapter() {
	public void changeControlPressed(DialogField field) {
	browseForInstallDir();
	}
	});
	fJDKRoot.setLabelText(LauncherMessages.getString("addVMDialog.jreHome")); //$NON-NLS-1$
	fJDKRoot.setButtonLabel(LauncherMessages.getString("addVMDialog.browse1")); //$NON-NLS-1$
	fJDKRoot.setDialogFieldListener(new IDialogFieldListener() {
	public void dialogFieldChanged(DialogField field) {
	fStati[1]= validateJDKLocation();
	updateStatusLine();
	if (!isCustomLibraryUsed()) {
	updateLibraryFieldDefaults();
	}
	}
	});

	fDebuggerTimeout= new StringDialogField();
	fDebuggerTimeout.setLabelText(LauncherMessages.getString("addVMDialog.dbgTimeout")); //$NON-NLS-1$
	fDebuggerTimeout.setDialogFieldListener(new IDialogFieldListener() {
	public void dialogFieldChanged(DialogField field) {
	fStati[2]= validateDebuggerTimeout();
	updateStatusLine();
	}
	});

	fUseDefaultLibrary= new SelectionButtonDialogField(SWT.CHECK);
	fUseDefaultLibrary.setLabelText(LauncherMessages.getString("addVMDialog.useDefault")); //$NON-NLS-1$
	fUseDefaultLibrary.setDialogFieldListener(new IDialogFieldListener() {
	public void dialogFieldChanged(DialogField field) {
	updateDefaultButton();
	}
	});


	fSystemLibrary= new StringButtonDialogField(new IStringButtonAdapter() {
	public void changeControlPressed(DialogField field) {
	browseForSystemLibrary();
	}
	});
	fSystemLibrary.setLabelText(LauncherMessages.getString("addVMDialog.jreJar")); //$NON-NLS-1$
	fSystemLibrary.setButtonLabel(LauncherMessages.getString("addVMDialog.browse2")); //$NON-NLS-1$
	fSystemLibrary.setDialogFieldListener(new IDialogFieldListener() {
	public void dialogFieldChanged(DialogField field) {
	fStati[3]= validateSystemLibrary();
	updateStatusLine();
	}
	});

	fSystemLibrarySource= new StringButtonDialogField(new IStringButtonAdapter() {
	public void changeControlPressed(DialogField field) {
	browseForSystemLibrarySource();
	}
	});

	fSystemLibrarySource.setLabelText(LauncherMessages.getString("addVMDialog.jreSource")); //$NON-NLS-1$
	fSystemLibrarySource.setButtonLabel(LauncherMessages.getString("addVMDialog.browse3")); //$NON-NLS-1$
	fSystemLibrarySource.setDialogFieldListener(new IDialogFieldListener() {
	public void dialogFieldChanged(DialogField field) {
	fStati[4]= validateSystemLibrarySource();
	updateStatusLine();
	}
	});
	}

	protected String getVMName() {
	return fVMName.getText();
	}

	protected File getInstallLocation() {
	return new File(fJDKRoot.getText());
	}

	protected int getTimeout() {
	return Integer.valueOf(fDebuggerTimeout.getText()).intValue();
	}

	protected Control createDialogArea(Composite ancestor) {
	createDialogFields();
	Composite parent= new Composite(ancestor, SWT.NULL);
	MGridLayout layout= new MGridLayout();
	layout.numColumns= 3;
	layout.minimumWidth= convertWidthInCharsToPixels(80);
	parent.setLayout(layout);

	fVMTypeCombo.doFillIntoGrid(parent, 3);
	fVMName.doFillIntoGrid(parent, 3);
	fJDKRoot.doFillIntoGrid(parent, 3);
	fDebuggerTimeout.doFillIntoGrid(parent, 3);

	fUseDefaultLibrary.doFillIntoGrid(parent, 3);

	fSystemLibrary.doFillIntoGrid(parent, 3);
	fSystemLibrarySource.doFillIntoGrid(parent, 3);

	initializeFields();

	return parent;
	}

	private void updateVMType() {
	int selIndex= fVMTypeCombo.getSelectionIndex();
	if (selIndex >= 0 && selIndex < fVMTypes.length) {
	fSelectedVMType= fVMTypes[selIndex];
	}
	fStati[1]= validateJDKLocation();
	updateDefaultButton();
	updateStatusLine();
	}


	private void updateDefaultButton() {
	if (fUseDefaultLibrary.isSelected()) {
	useDefaultSystemLibrary();
	} else {
	useCustomSystemLibrary(null);
	}
	}


	public void create() {
	super.create();
	fVMName.setFocus();
	selectVMType();
	}

	private String[] getVMTypeNames() {
	String[] names= new String[fVMTypes.length];
	for (int i= 0; i < fVMTypes.length; i++) {
	names[i]= fVMTypes[i].getName();
	}
	return names;
	}

	private void selectVMType() {
	for (int i= 0; i < fVMTypes.length; i++) {
	if (fSelectedVMType == fVMTypes[i]) {
	fVMTypeCombo.selectItem(i);
	return;
	}
	}
	}

	private void initializeFields() {
	fVMTypeCombo.setItems(getVMTypeNames());
	if (fEditedVM == null) {
	fVMName.setText(""); //$NON-NLS-1$
	fJDKRoot.setText(""); //$NON-NLS-1$
	fDebuggerTimeout.setText("3000"); //$NON-NLS-1$
	fUseDefaultLibrary.setSelection(true);
	useDefaultSystemLibrary();
	} else {
	fVMTypeCombo.setEnabled(false);
	fVMName.setText(fEditedVM.getName());
	fJDKRoot.setText(fEditedVM.getInstallLocation().getAbsolutePath());
	fDebuggerTimeout.setText(String.valueOf(fEditedVM.getDebuggerTimeout()));
	LibraryLocation desc= fEditedVM.getLibraryLocation();
	fUseDefaultLibrary.setSelection(desc == null);
	if (desc == null) {
	useDefaultSystemLibrary();
	} else {
	useCustomSystemLibrary(desc);
	}
	}
	}

	private IVMInstallType getVMType() {
	return fSelectedVMType;
	}


	private IStatus validateJDKLocation() {
	String locationName= fJDKRoot.getText();
	if (locationName.length() == 0) {//$NON-NLS-1$
	return new StatusInfo(IStatus.ERROR, LauncherMessages.getString("addVMDialog.enterLocation")); //$NON-NLS-1$
	}
	File file= new File(locationName);
	if (!file.exists()) {
	return new StatusInfo(IStatus.ERROR, LauncherMessages.getString("addVMDialog.locationNotExists")); //$NON-NLS-1$
	}
	return getVMType().validateInstallLocation(file);
	}

	private IStatus validateVMName() {
	StatusInfo status= new StatusInfo();
	String name= fVMName.getText();
	if (name == null \|\| "".equals(name.trim())) { //$NON-NLS-1$
	status.setError(LauncherMessages.getString("addVMDialog.enterName")); //$NON-NLS-1$
	} else {
	IVMInstallType type= getVMType();
	if (fRequestor.isDuplicateName(type, name) && (fEditedVM == null \|\| !name.equals(fEditedVM.getName()))) {
	status.setError(LauncherMessages.getString("addVMDialog.duplicateName")); //$NON-NLS-1$
	}
	}
	return status;
	}

	private IStatus validateDebuggerTimeout() {
	StatusInfo status= new StatusInfo();
	String timeoutText= fDebuggerTimeout.getText();
	long timeout= 0;
	try {
	timeout= Long.valueOf(timeoutText).longValue();
	if (timeout < 0) {
	status.setError(LauncherMessages.getString("addVMDialog.timeoutSmall")); //$NON-NLS-1$
	} else if (timeout > Integer.MAX_VALUE) {
	status.setError(LauncherMessages.getFormattedString("addVMDialog.timeoutLarge", Integer.toString(Integer.MAX_VALUE))); //$NON-NLS-1$
	}
	} catch (NumberFormatException e) {
	status.setError(LauncherMessages.getString("addVMDialog.timeoutNotANumber")); //$NON-NLS-1$
	}
	return status;

	}

	private void updateStatusLine() {
	updateStatus(StatusUtil.getMostSevere(fStati));
	}

	private void updateLibraryFieldDefaults() {
	String libJar= ""; //$NON-NLS-1$
	String srcJar= ""; //$NON-NLS-1$
	if (StatusUtil.getMostSevere(fStati).getSeverity() != IStatus.ERROR) {
	LibraryLocation location= fSelectedVMType.getDefaultLibraryLocation(getInstallLocation());
	IPath systemLibraryPath= location.getSystemLibraryPath();
	if (systemLibraryPath.toFile().isFile()) {
	libJar= systemLibraryPath.toOSString();
	}

	IPath librarySourcePath= location.getSystemLibrarySourcePath();
	if (librarySourcePath.toFile().isFile()) {
	srcJar= librarySourcePath.toOSString();
	}
	}
	fSystemLibrary.setText(libJar);
	fSystemLibrarySource.setText(srcJar);
	}

	private IStatus validateSystemLibrary() {
	int flag= IStatus.ERROR;
	if (!isCustomLibraryUsed())
	flag= IStatus.WARNING;

	String locationName= fSystemLibrary.getText();
	if (locationName == null \|\| "".equals(locationName)) //$NON-NLS-1$
	return new StatusInfo(flag, LauncherMessages.getString("addVMDialog.missingJREJar")); //$NON-NLS-1$

	File f= new File(locationName);
	if (!f.isFile())
	return new StatusInfo(flag, LauncherMessages.getString("addVMDialog.missingJREJar")); //$NON-NLS-1$
	try {
	ZipFile zip= null;
	try {
	zip= new ZipFile(f);
	ZipEntry e= zip.getEntry("java/lang/Object.class"); //$NON-NLS-1$
	if (e == null)
	return new StatusInfo(flag, LauncherMessages.getString("addVMDialog.noObjectClass")); //$NON-NLS-1$
	} catch (IOException e) {
	JavaPlugin.log(e);
	return new StatusInfo(flag, LauncherMessages.getString("addVMDialog.jreJarException")); //$NON-NLS-1$
	} finally {
	if (zip != null)
	zip.close();
	}
	} catch (IOException e) {
	JavaPlugin.log(e);
	}
	return new StatusInfo();
	}

	private boolean isCustomLibraryUsed() {
	return !fUseDefaultLibrary.isSelected();
	}

	private IStatus validateSystemLibrarySource() {
	StatusInfo status= new StatusInfo();

	String locationName= fSystemLibrarySource.getText();
	if (locationName.length() == 0) {
	return status;
	}

	File f= new File(locationName);
	if (!f.isFile()) {
	status.setError(LauncherMessages.getString("addVMDialog.missingJRESource")); //$NON-NLS-1$
	} else {
	if (determinePackagePrefix(new Path(locationName)) == null) {
	status.setError(LauncherMessages.getString("addVMDialog.noObjectSource")); //$NON-NLS-1$
	}
	}
	return status;
	}

	/**
	* try finding the package prefix
	*/
	private IPath determinePackagePrefix(IPath sourceJar) {
	if (sourceJar.isEmpty() \|\| !sourceJar.toFile().isFile()) {
	return null;
	}
	ZipFile zip= null;
	try {
	zip= new ZipFile(sourceJar.toFile());
	Enumeration zipEntries= zip.entries();
	while (zipEntries.hasMoreElements()) {
	ZipEntry entry= (ZipEntry) zipEntries.nextElement();
	String name= entry.getName();
	if (name.endsWith(JAVA_LANG_OBJECT)) {
	String prefix= name.substring(0, name.length() - JAVA_LANG_OBJECT.length());
	if (prefix.endsWith("/")) //$NON-NLS-1$
	prefix= prefix.substring(0, prefix.length() - 1);
	return new Path(prefix);
	}
	}
	} catch (IOException e) {
	JavaPlugin.log(e);
	} finally {
	if (zip != null) {
	try { zip.close(); } catch (IOException e) {};
	}
	}
	return null;
	}

	private void browseForInstallDir() {
	DirectoryDialog dialog= new DirectoryDialog(getShell());
	dialog.setFilterPath(fJDKRoot.getText());
	dialog.setMessage(LauncherMessages.getString("addVMDialog.pickJRERootDialog.message")); //$NON-NLS-1$
	String newPath= dialog.open();
	if (newPath != null)
	fJDKRoot.setText(newPath);
	}

	private void browseForSystemLibrary() {
	String currPath= fSystemLibrary.getText();
	String lastUsedDir;
	if (currPath.length() == 0) {
	lastUsedDir= fDialogSettings.get(IUIConstants.DIALOGSTORE_LASTEXTJAR);
	if (lastUsedDir == null) {
	lastUsedDir= fJDKRoot.getText();
	}
	} else {
	IPath prevPath= new Path(currPath);
	if (ArchiveFileFilter.isArchivePath(prevPath)) {
	prevPath= prevPath.removeLastSegments(1);
	}
	lastUsedDir= prevPath.toOSString();
	}

	FileDialog dialog= new FileDialog(getShell());
	dialog.setFilterPath(lastUsedDir);
	dialog.setText(LauncherMessages.getString("addVMDialog.pickJREJarDialog.text")); //$NON-NLS-1$
	dialog.setFilterExtensions(new String[] { ".jar;.zip"}); //$NON-NLS-2$ //$NON-NLS-1$
	String newPath= dialog.open();
	if (newPath != null) {
	fSystemLibrary.setText(newPath);
	fDialogSettings.put(IUIConstants.DIALOGSTORE_LASTEXTJAR, dialog.getFilterPath());
	}
	}

	private void browseForSystemLibrarySource() {
	String currPath= fSystemLibrarySource.getText();
	String lastUsedDir;
	if (currPath.length() == 0) {
	currPath= fSystemLibrary.getText();
	}
	if (currPath.length() == 0) {
	lastUsedDir= fJDKRoot.getText();
	} else {
	IPath prevPath= new Path(currPath);
	if (ArchiveFileFilter.isArchivePath(prevPath)) {
	prevPath= prevPath.removeLastSegments(1);
	}
	lastUsedDir= prevPath.toOSString();
	}

	FileDialog dialog= new FileDialog(getShell());
	dialog.setFilterPath(lastUsedDir);
	dialog.setText(LauncherMessages.getString("addVMDialog.pickJRESourceDialog.text")); //$NON-NLS-1$
	dialog.setFilterExtensions(new String[] { ".jar;.zip"}); //$NON-NLS-1$
	String newPath= dialog.open();
	if (newPath != null)
	fSystemLibrarySource.setText(newPath);
	}

	private void useDefaultSystemLibrary() {
	updateLibraryFieldDefaults();
	fSystemLibrary.setEnabled(false);
	fSystemLibrarySource.setEnabled(false);
	}

	private void useCustomSystemLibrary(LibraryLocation newValues) {
	fSystemLibrary.setEnabled(true);
	fSystemLibrarySource.setEnabled(true);
	if (newValues != null) {
	fSystemLibrary.setText(newValues.getSystemLibraryPath().toOSString());
	fSystemLibrarySource.setText(newValues.getSystemLibrarySourcePath().toOSString());
	}
	}

	protected void okPressed() {
	doOkPressed();
	super.okPressed();
	}

	private void doOkPressed() {
	if (fEditedVM == null) {
	IVMInstall vm= new VMStandin(fSelectedVMType, createUniqueId(fSelectedVMType));
	setFieldValuesToVM(vm);
	fRequestor.vmAdded(vm);
	} else {
	setFieldValuesToVM(fEditedVM);
	}
	}

	private String createUniqueId(IVMInstallType vmType) {
	String id= null;
	do {
	id= String.valueOf(System.currentTimeMillis());
	} while (vmType.findVMInstall(id) != null);
	return id;
	}



	protected void setFieldValuesToVM(IVMInstall vm) {
	vm.setInstallLocation(new File(fJDKRoot.getText()).getAbsoluteFile());
	vm.setName(fVMName.getText());
	vm.setDebuggerTimeout(getTimeout());
	if (isCustomLibraryUsed()) {
	IPath systemLibrary= new Path(fSystemLibrary.getText());
	IPath source= new Path(fSystemLibrarySource.getText());
	IPath sourceRoot= determinePackagePrefix(source);
	if (sourceRoot == null) {
	sourceRoot= Path.EMPTY;
	}
	vm.setLibraryLocation(new LibraryLocation(systemLibrary, source, sourceRoot));
	} else {
	vm.setLibraryLocation(null);
	}
	}

	protected File getAbsoluteFileOrEmpty(String path) {
	if (path == null \|\| "".equals(path)) //$NON-NLS-1$
	return new File(""); //$NON-NLS-1$
	return new File(path).getAbsoluteFile();
	}
	}