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/*******************************************************************************
* Copyright (c) 2000, 2003 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.debug.internal.ui.launchConfigurations;
import java.text.MessageFormat;
import java.util.Hashtable;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExtension;
import org.eclipse.core.runtime.IExtensionPoint;
import org.eclipse.core.runtime.IPluginDescriptor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.debug.core.DebugPlugin;
import org.eclipse.debug.core.ILaunchConfigurationType;
import org.eclipse.debug.internal.ui.DebugUIPlugin;
import org.eclipse.debug.ui.IDebugUIConstants;
import org.eclipse.debug.ui.ILaunchConfigurationTabGroup;
/**
* Manages contributed launch configuration tabs
*/
public class LaunchConfigurationPresentationManager {
/**
* The singleton launch configuration presentation manager
*/
private static LaunchConfigurationPresentationManager fgDefault;
/**
* Collection of launch configuration tab group extensions
* defined in plug-in xml. Entries are keyed by launch
* configuration type identifier (<code>String</code>),
* and entires are <code>LaunchConfigurationTabGroupExtension</code>.
*/
private Hashtable fTabGroupExtensions;
/**
* Constructs the singleton launch configuration presentation
* manager.
*/
private LaunchConfigurationPresentationManager() {
fgDefault = this;
initializeTabGroupExtensions();
}
/**
* Returns the launch configuration presentation manager
*/
public static LaunchConfigurationPresentationManager getDefault() {
if (fgDefault == null) {
fgDefault = new LaunchConfigurationPresentationManager();
}
return fgDefault;
}
/**
* Creates launch configuration tab group extensions for each extension
* defined in XML, and adds them to the table of tab group extensions.
*/
private void initializeTabGroupExtensions() {
fTabGroupExtensions = new Hashtable();
IPluginDescriptor descriptor= DebugUIPlugin.getDefault().getDescriptor();
IExtensionPoint extensionPoint= descriptor.getExtensionPoint(IDebugUIConstants.EXTENSION_POINT_LAUNCH_CONFIGURATION_TAB_GROUPS);
IConfigurationElement[] groups = extensionPoint.getConfigurationElements();
for (int i = 0; i < groups.length; i++) {
LaunchConfigurationTabGroupExtension group = new LaunchConfigurationTabGroupExtension(groups[i]);
String typeId = group.getTypeIdentifier();
if (typeId == null) {
IExtension ext = groups[i].getDeclaringExtension();
IStatus status = new Status(IStatus.ERROR, IDebugUIConstants.PLUGIN_ID, IDebugUIConstants.STATUS_INVALID_EXTENSION_DEFINITION,
MessageFormat.format(LaunchConfigurationsMessages.getString("LaunchConfigurationPresentationManager.Launch_configuration_tab_group_extension_{0}_does_not_specify_launch_configuration_type_1"), (new String[] {ext.getUniqueIdentifier()})), null); //$NON-NLS-1$
DebugUIPlugin.log(status);
} else {
// verify it references a valid launch configuration type
ILaunchConfigurationType lct = DebugPlugin.getDefault().getLaunchManager().getLaunchConfigurationType(typeId);
if (lct == null) {
IExtension ext = groups[i].getDeclaringExtension();
IStatus status = new Status(IStatus.ERROR, IDebugUIConstants.PLUGIN_ID, IDebugUIConstants.STATUS_INVALID_EXTENSION_DEFINITION,
MessageFormat.format(LaunchConfigurationsMessages.getString("LaunchConfigurationPresentationManager.Launch_configuration_tab_group_extension_{0}_refers_to_non-existant_launch_configuration_type_{1}_2"), (new String[] {ext.getUniqueIdentifier(), typeId})), null); //$NON-NLS-1$
DebugUIPlugin.log(status);
}
}
if (typeId != null) {
fTabGroupExtensions.put(typeId, group);
}
}
}
/**
* Returns the tab group for the given type of launch configuration.
*
* @return the tab group for the given type of launch configuration
* @exception CoreException if an exception occurrs creating the group
*/
public ILaunchConfigurationTabGroup getTabGroup(ILaunchConfigurationType type) throws CoreException {
LaunchConfigurationTabGroupExtension ext = (LaunchConfigurationTabGroupExtension)fTabGroupExtensions.get(type.getIdentifier());
if (ext == null) {
IStatus status = new Status(IStatus.ERROR, IDebugUIConstants.PLUGIN_ID, IDebugUIConstants.INTERNAL_ERROR,
MessageFormat.format(LaunchConfigurationsMessages.getString("LaunchConfigurationPresentationManager.No_tab_group_defined_for_launch_configuration_type_{0}_3"), (new String[] {type.getIdentifier()})), null); ; //$NON-NLS-1$
throw new CoreException(status);
} else {
return ext.newTabGroup();
}
}
/**
* Returns the identifier of the help context that is associated with the
* specified launch configuration type, or <code>null</code> if none.
*
* @return the identifier for the help context associated with the given
* type of launch configuration, or <code>null</code>
* @exception CoreException if an exception occurrs creating the group
* @since 2.1
*/
public String getHelpContext(ILaunchConfigurationType type) throws CoreException {
LaunchConfigurationTabGroupExtension ext = (LaunchConfigurationTabGroupExtension)fTabGroupExtensions.get(type.getIdentifier());
if (ext == null) {
IStatus status = new Status(IStatus.ERROR, IDebugUIConstants.PLUGIN_ID, IDebugUIConstants.INTERNAL_ERROR,
MessageFormat.format(LaunchConfigurationsMessages.getString("LaunchConfigurationPresentationManager.No_tab_group_defined_for_launch_configuration_type_{0}_3"), (new String[] {type.getIdentifier()})), null); ; //$NON-NLS-1$
throw new CoreException(status);
} else {
return ext.getHelpContextId();
}
}
}
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