Java tutorial
/******************************************************************************* * Copyright (c) 2000, 2012 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * IBM Corporation - initial API and implementation *******************************************************************************/ package org.eclipse.jdt.internal.debug.ui; import org.eclipse.core.runtime.preferences.DefaultScope; import org.eclipse.core.runtime.preferences.IEclipsePreferences; import org.eclipse.core.runtime.preferences.InstanceScope; import org.eclipse.debug.internal.ui.SWTFactory; import org.eclipse.jdt.debug.core.IJavaBreakpoint; import org.eclipse.jdt.debug.core.JDIDebugModel; import org.eclipse.jdt.internal.debug.core.JDIDebugPlugin; import org.eclipse.jdt.internal.launching.LaunchingPlugin; import org.eclipse.jdt.launching.JavaRuntime; import org.eclipse.jface.preference.FieldEditor; import org.eclipse.jface.preference.IPreferenceStore; import org.eclipse.jface.preference.IntegerFieldEditor; import org.eclipse.jface.preference.PreferencePage; import org.eclipse.jface.preference.StringFieldEditor; import org.eclipse.jface.util.IPropertyChangeListener; import org.eclipse.jface.util.PropertyChangeEvent; import org.eclipse.osgi.util.NLS; import org.eclipse.swt.SWT; import org.eclipse.swt.layout.GridData; 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.ui.IWorkbench; import org.eclipse.ui.IWorkbenchPreferencePage; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.dialogs.PreferenceLinkArea; import org.eclipse.ui.preferences.IWorkbenchPreferenceContainer; import org.osgi.service.prefs.BackingStoreException; /** * Preference page for debug preferences that apply specifically to * Java Debugging. */ public class JavaDebugPreferencePage extends PreferencePage implements IWorkbenchPreferencePage, IPropertyChangeListener { /** * This class exists to provide visibility to the * <code>refreshValidState</code> method and to perform more intelligent * clearing of the error message. */ protected class JavaDebugIntegerFieldEditor extends IntegerFieldEditor { public JavaDebugIntegerFieldEditor(String name, String labelText, Composite parent) { super(name, labelText, parent); } @Override protected void refreshValidState() { super.refreshValidState(); } @Override protected void clearErrorMessage() { if (canClearErrorMessage()) { super.clearErrorMessage(); } } } // Suspend preference widgets private Button fSuspendButton; private Button fSuspendOnCompilationErrors; private Button fSuspendDuringEvaluations; private Button fOpenInspector; private Button fPromptUnableToInstallBreakpoint; private Button fPromptDeleteConditionalBreakpoint; private Button fOnlyIncludeExportedEntries; private Combo fSuspendVMorThread; private Combo fWatchpoint; // Hot code replace preference widgets private Button fAlertHCRButton; private Button fAlertHCRNotSupportedButton; private Button fAlertObsoleteButton; private Button fPerformHCRWithCompilationErrors; // Timeout preference widgets private JavaDebugIntegerFieldEditor fTimeoutText; private JavaDebugIntegerFieldEditor fConnectionTimeoutText; public JavaDebugPreferencePage() { super(); setPreferenceStore(JDIDebugUIPlugin.getDefault().getPreferenceStore()); setDescription(DebugUIMessages.JavaDebugPreferencePage_description); } /* (non-Javadoc) * @see org.eclipse.jface.preference.PreferencePage#createControl(org.eclipse.swt.widgets.Composite) */ @Override public void createControl(Composite parent) { super.createControl(parent); PlatformUI.getWorkbench().getHelpSystem().setHelp(getControl(), IJavaDebugHelpContextIds.JAVA_DEBUG_PREFERENCE_PAGE); } /* (non-Javadoc) * @see org.eclipse.jface.preference.PreferencePage#createContents(org.eclipse.swt.widgets.Composite) */ @Override protected Control createContents(Composite parent) { //The main composite Composite composite = SWTFactory.createComposite(parent, parent.getFont(), 1, 1, 0, 0, GridData.FILL); PreferenceLinkArea link = new PreferenceLinkArea(composite, SWT.NONE, "org.eclipse.debug.ui.DebugPreferencePage", DebugUIMessages.JavaDebugPreferencePage_0, //$NON-NLS-1$ (IWorkbenchPreferenceContainer) getContainer(), null); link.getControl().setFont(composite.getFont()); Group group = SWTFactory.createGroup(composite, DebugUIMessages.JavaDebugPreferencePage_Suspend_Execution_1, 2, 1, GridData.FILL_HORIZONTAL); fSuspendButton = SWTFactory.createCheckButton(group, DebugUIMessages.JavaDebugPreferencePage_Suspend__execution_on_uncaught_exceptions_1, null, false, 2); fSuspendOnCompilationErrors = SWTFactory.createCheckButton(group, DebugUIMessages.JavaDebugPreferencePage_Suspend_execution_on_co_mpilation_errors_1, null, false, 2); fSuspendDuringEvaluations = SWTFactory.createCheckButton(group, DebugUIMessages.JavaDebugPreferencePage_14, null, false, 2); fOpenInspector = SWTFactory.createCheckButton(group, DebugUIMessages.JavaDebugPreferencePage_20, null, false, 2); SWTFactory.createLabel(group, DebugUIMessages.JavaDebugPreferencePage_21, 1); fSuspendVMorThread = new Combo(group, SWT.BORDER | SWT.READ_ONLY); fSuspendVMorThread.setItems(new String[] { DebugUIMessages.JavaDebugPreferencePage_22, DebugUIMessages.JavaDebugPreferencePage_23 }); fSuspendVMorThread.setFont(group.getFont()); SWTFactory.createLabel(group, DebugUIMessages.JavaDebugPreferencePage_24, 1); fWatchpoint = new Combo(group, SWT.BORDER | SWT.READ_ONLY); fWatchpoint.setItems(new String[] { DebugUIMessages.JavaDebugPreferencePage_25, DebugUIMessages.JavaDebugPreferencePage_26, DebugUIMessages.JavaDebugPreferencePage_27 }); fWatchpoint.setFont(group.getFont()); group = SWTFactory.createGroup(composite, DebugUIMessages.JavaDebugPreferencePage_Hot_Code_Replace_2, 1, 1, GridData.FILL_HORIZONTAL); fAlertHCRButton = SWTFactory.createCheckButton(group, DebugUIMessages.JavaDebugPreferencePage_Alert_me_when_hot_code_replace_fails_1, null, false, 1); fAlertHCRNotSupportedButton = SWTFactory.createCheckButton(group, DebugUIMessages.JavaDebugPreferencePage_Alert_me_when_hot_code_replace_is_not_supported_1, null, false, 1); fAlertObsoleteButton = SWTFactory.createCheckButton(group, DebugUIMessages.JavaDebugPreferencePage_Alert_me_when_obsolete_methods_remain_1, null, false, 1); fPerformHCRWithCompilationErrors = SWTFactory.createCheckButton(group, DebugUIMessages.JavaDebugPreferencePage_Replace_classfiles_containing_compilation_errors_1, null, false, 1); group = SWTFactory.createGroup(composite, DebugUIMessages.JavaDebugPreferencePage_Communication_1, 1, 1, GridData.FILL_HORIZONTAL); Composite space = SWTFactory.createComposite(group, group.getFont(), 1, 1, GridData.FILL_HORIZONTAL); fTimeoutText = new JavaDebugIntegerFieldEditor(JDIDebugModel.PREF_REQUEST_TIMEOUT, DebugUIMessages.JavaDebugPreferencePage_Debugger__timeout__2, space); fTimeoutText.setPage(this); fTimeoutText.setValidateStrategy(StringFieldEditor.VALIDATE_ON_KEY_STROKE); fTimeoutText.setValidRange(JDIDebugModel.DEF_REQUEST_TIMEOUT, Integer.MAX_VALUE); fTimeoutText.setErrorMessage(NLS.bind( DebugUIMessages.JavaDebugPreferencePage_Value_must_be_a_valid_integer_greater_than__0__ms_1, new Object[] { new Integer(JDIDebugModel.DEF_REQUEST_TIMEOUT) })); fTimeoutText.load(); fConnectionTimeoutText = new JavaDebugIntegerFieldEditor(JavaRuntime.PREF_CONNECT_TIMEOUT, DebugUIMessages.JavaDebugPreferencePage__Launch_timeout__ms___1, space); fConnectionTimeoutText.setPage(this); fConnectionTimeoutText.setValidateStrategy(StringFieldEditor.VALIDATE_ON_KEY_STROKE); fConnectionTimeoutText.setValidRange(JavaRuntime.DEF_CONNECT_TIMEOUT, Integer.MAX_VALUE); fConnectionTimeoutText.setErrorMessage(NLS.bind( DebugUIMessages.JavaDebugPreferencePage_Value_must_be_a_valid_integer_greater_than__0__ms_1, new Object[] { new Integer(JavaRuntime.DEF_CONNECT_TIMEOUT) })); fConnectionTimeoutText.load(); SWTFactory.createVerticalSpacer(composite, 1); fPromptUnableToInstallBreakpoint = SWTFactory.createCheckButton(composite, DebugUIMessages.JavaDebugPreferencePage_19, null, false, 1); fPromptDeleteConditionalBreakpoint = SWTFactory.createCheckButton(composite, DebugUIMessages.JavaDebugPreferencePage_promptWhenDeletingCondidtionalBreakpoint, null, false, 1); SWTFactory.createVerticalSpacer(composite, 1); fOnlyIncludeExportedEntries = SWTFactory.createCheckButton(composite, DebugUIMessages.JavaDebugPreferencePage_only_include_exported_entries, null, false, 1); setValues(); fTimeoutText.setPropertyChangeListener(this); fConnectionTimeoutText.setPropertyChangeListener(this); return composite; } /* (non-Javadoc) * @see org.eclipse.ui.IWorkbenchPreferencePage#init(org.eclipse.ui.IWorkbench) */ public void init(IWorkbench workbench) { } /* (non-Javadoc) * @see org.eclipse.jface.preference.PreferencePage#performOk() */ @Override public boolean performOk() { IPreferenceStore store = getPreferenceStore(); store.setValue(IJDIPreferencesConstants.PREF_ALERT_HCR_FAILED, fAlertHCRButton.getSelection()); store.setValue(IJDIPreferencesConstants.PREF_ALERT_HCR_NOT_SUPPORTED, fAlertHCRNotSupportedButton.getSelection()); store.setValue(IJDIPreferencesConstants.PREF_ALERT_OBSOLETE_METHODS, fAlertObsoleteButton.getSelection()); store.setValue(IJDIPreferencesConstants.PREF_SUSPEND_ON_UNCAUGHT_EXCEPTIONS, fSuspendButton.getSelection()); store.setValue(IJDIPreferencesConstants.PREF_SUSPEND_ON_COMPILATION_ERRORS, fSuspendOnCompilationErrors.getSelection()); store.setValue(IJDIPreferencesConstants.PREF_ALERT_UNABLE_TO_INSTALL_BREAKPOINT, fPromptUnableToInstallBreakpoint.getSelection()); store.setValue(IJDIPreferencesConstants.PREF_PROMPT_DELETE_CONDITIONAL_BREAKPOINT, fPromptDeleteConditionalBreakpoint.getSelection()); store.setValue(IJDIPreferencesConstants.PREF_OPEN_INSPECT_POPUP_ON_EXCEPTION, fOpenInspector.getSelection()); IEclipsePreferences prefs = InstanceScope.INSTANCE.getNode(JDIDebugPlugin.getUniqueIdentifier()); if (prefs != null) { prefs.putBoolean(JDIDebugModel.PREF_SUSPEND_FOR_BREAKPOINTS_DURING_EVALUATION, fSuspendDuringEvaluations.getSelection()); int selectionIndex = fSuspendVMorThread.getSelectionIndex(); int policy = IJavaBreakpoint.SUSPEND_THREAD; if (selectionIndex > 0) { policy = IJavaBreakpoint.SUSPEND_VM; } prefs.putInt(JDIDebugPlugin.PREF_DEFAULT_BREAKPOINT_SUSPEND_POLICY, policy); prefs.putInt(JDIDebugPlugin.PREF_DEFAULT_WATCHPOINT_SUSPEND_POLICY, fWatchpoint.getSelectionIndex()); prefs.putBoolean(JDIDebugModel.PREF_HCR_WITH_COMPILATION_ERRORS, fPerformHCRWithCompilationErrors.getSelection()); prefs.putInt(JDIDebugModel.PREF_REQUEST_TIMEOUT, fTimeoutText.getIntValue()); try { prefs.flush(); } catch (BackingStoreException e) { JDIDebugUIPlugin.log(e); } } prefs = InstanceScope.INSTANCE.getNode(LaunchingPlugin.ID_PLUGIN); if (prefs != null) { prefs.putInt(JavaRuntime.PREF_CONNECT_TIMEOUT, fConnectionTimeoutText.getIntValue()); prefs.putBoolean(JavaRuntime.PREF_ONLY_INCLUDE_EXPORTED_CLASSPATH_ENTRIES, fOnlyIncludeExportedEntries.getSelection()); try { prefs.flush(); } catch (BackingStoreException e) { JDIDebugUIPlugin.log(e); } } return true; } /* (non-Javadoc) * @see org.eclipse.jface.preference.PreferencePage#performDefaults() */ @Override protected void performDefaults() { IPreferenceStore store = getPreferenceStore(); fSuspendButton.setSelection( store.getDefaultBoolean(IJDIPreferencesConstants.PREF_SUSPEND_ON_UNCAUGHT_EXCEPTIONS)); fSuspendOnCompilationErrors .setSelection(store.getDefaultBoolean(IJDIPreferencesConstants.PREF_SUSPEND_ON_COMPILATION_ERRORS)); fAlertHCRButton.setSelection(store.getDefaultBoolean(IJDIPreferencesConstants.PREF_ALERT_HCR_FAILED)); fAlertHCRNotSupportedButton .setSelection(store.getDefaultBoolean(IJDIPreferencesConstants.PREF_ALERT_HCR_NOT_SUPPORTED)); fAlertObsoleteButton .setSelection(store.getDefaultBoolean(IJDIPreferencesConstants.PREF_ALERT_OBSOLETE_METHODS)); fPromptUnableToInstallBreakpoint.setSelection( store.getDefaultBoolean(IJDIPreferencesConstants.PREF_ALERT_UNABLE_TO_INSTALL_BREAKPOINT)); fPromptDeleteConditionalBreakpoint.setSelection( store.getDefaultBoolean(IJDIPreferencesConstants.PREF_PROMPT_DELETE_CONDITIONAL_BREAKPOINT)); fOpenInspector.setSelection( store.getDefaultBoolean(IJDIPreferencesConstants.PREF_OPEN_INSPECT_POPUP_ON_EXCEPTION)); IEclipsePreferences prefs = DefaultScope.INSTANCE.getNode(JDIDebugPlugin.getUniqueIdentifier()); if (prefs != null) { fSuspendDuringEvaluations.setSelection( prefs.getBoolean(JDIDebugModel.PREF_SUSPEND_FOR_BREAKPOINTS_DURING_EVALUATION, true)); int value = prefs.getInt(JDIDebugPlugin.PREF_DEFAULT_BREAKPOINT_SUSPEND_POLICY, IJavaBreakpoint.SUSPEND_THREAD); fSuspendVMorThread.select((value == IJavaBreakpoint.SUSPEND_THREAD) ? 0 : 1); fWatchpoint.select(prefs.getInt(JDIDebugPlugin.PREF_DEFAULT_WATCHPOINT_SUSPEND_POLICY, 0)); fPerformHCRWithCompilationErrors .setSelection(prefs.getBoolean(JDIDebugModel.PREF_HCR_WITH_COMPILATION_ERRORS, true)); fTimeoutText.setStringValue( new Integer(prefs.getInt(JDIDebugModel.PREF_REQUEST_TIMEOUT, JDIDebugModel.DEF_REQUEST_TIMEOUT)) .toString()); } prefs = DefaultScope.INSTANCE.getNode(LaunchingPlugin.ID_PLUGIN); if (prefs != null) { fConnectionTimeoutText.setStringValue( new Integer(prefs.getInt(JavaRuntime.PREF_CONNECT_TIMEOUT, JavaRuntime.DEF_CONNECT_TIMEOUT)) .toString()); fOnlyIncludeExportedEntries.setSelection( prefs.getBoolean(JavaRuntime.PREF_ONLY_INCLUDE_EXPORTED_CLASSPATH_ENTRIES, false)); } super.performDefaults(); } /** * Set the values of the component widgets based on the * values in the preference store */ private void setValues() { IPreferenceStore store = getPreferenceStore(); fSuspendButton.setSelection(store.getBoolean(IJDIPreferencesConstants.PREF_SUSPEND_ON_UNCAUGHT_EXCEPTIONS)); fSuspendOnCompilationErrors .setSelection(store.getBoolean(IJDIPreferencesConstants.PREF_SUSPEND_ON_COMPILATION_ERRORS)); fAlertHCRButton.setSelection(store.getBoolean(IJDIPreferencesConstants.PREF_ALERT_HCR_FAILED)); fAlertHCRNotSupportedButton .setSelection(store.getBoolean(IJDIPreferencesConstants.PREF_ALERT_HCR_NOT_SUPPORTED)); fAlertObsoleteButton.setSelection(store.getBoolean(IJDIPreferencesConstants.PREF_ALERT_OBSOLETE_METHODS)); fPromptUnableToInstallBreakpoint .setSelection(store.getBoolean(IJDIPreferencesConstants.PREF_ALERT_UNABLE_TO_INSTALL_BREAKPOINT)); fPromptDeleteConditionalBreakpoint .setSelection(store.getBoolean(IJDIPreferencesConstants.PREF_PROMPT_DELETE_CONDITIONAL_BREAKPOINT)); fOpenInspector .setSelection(store.getBoolean(IJDIPreferencesConstants.PREF_OPEN_INSPECT_POPUP_ON_EXCEPTION)); IEclipsePreferences prefs = InstanceScope.INSTANCE.getNode(JDIDebugPlugin.getUniqueIdentifier()); if (prefs != null) { fSuspendDuringEvaluations.setSelection( prefs.getBoolean(JDIDebugModel.PREF_SUSPEND_FOR_BREAKPOINTS_DURING_EVALUATION, true)); int value = prefs.getInt(JDIDebugPlugin.PREF_DEFAULT_BREAKPOINT_SUSPEND_POLICY, IJavaBreakpoint.SUSPEND_THREAD); fSuspendVMorThread.select((value == IJavaBreakpoint.SUSPEND_THREAD ? 0 : 1)); fWatchpoint.select(prefs.getInt(JDIDebugPlugin.PREF_DEFAULT_WATCHPOINT_SUSPEND_POLICY, 0)); fPerformHCRWithCompilationErrors .setSelection(prefs.getBoolean(JDIDebugModel.PREF_HCR_WITH_COMPILATION_ERRORS, true)); fTimeoutText.setStringValue( new Integer(prefs.getInt(JDIDebugModel.PREF_REQUEST_TIMEOUT, JDIDebugModel.DEF_REQUEST_TIMEOUT)) .toString()); } prefs = InstanceScope.INSTANCE.getNode(LaunchingPlugin.ID_PLUGIN); if (prefs != null) { fConnectionTimeoutText.setStringValue( new Integer(prefs.getInt(JavaRuntime.PREF_CONNECT_TIMEOUT, JavaRuntime.DEF_CONNECT_TIMEOUT)) .toString()); fOnlyIncludeExportedEntries.setSelection( prefs.getBoolean(JavaRuntime.PREF_ONLY_INCLUDE_EXPORTED_CLASSPATH_ENTRIES, false)); } } /* (non-Javadoc) * @see org.eclipse.jface.util.IPropertyChangeListener#propertyChange(org.eclipse.jface.util.PropertyChangeEvent) */ public void propertyChange(PropertyChangeEvent event) { if (event.getProperty().equals(FieldEditor.IS_VALID)) { boolean newValue = ((Boolean) event.getNewValue()).booleanValue(); // If the new value is true then we must check all field editors. // If it is false, then the page is invalid in any case. if (newValue) { if (fTimeoutText != null && event.getSource() != fTimeoutText) { fTimeoutText.refreshValidState(); } if (fConnectionTimeoutText != null && event.getSource() != fConnectionTimeoutText) { fConnectionTimeoutText.refreshValidState(); } } setValid(fTimeoutText.isValid() && fConnectionTimeoutText.isValid()); getContainer().updateButtons(); updateApplyButton(); } } /** * if the error message can be cleared or not * @return true if the error message can be cleared, false otherwise */ protected boolean canClearErrorMessage() { if (fTimeoutText.isValid() && fConnectionTimeoutText.isValid()) { return true; } return false; } }