| /******************************************************************************* |
| * Copyright (c) 2004, 2006 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.core.internal.registry; |
| |
| import org.eclipse.core.runtime.*; |
| |
| /** |
| * @since 3.1 |
| */ |
| public class ConfigurationElementHandle extends Handle implements IConfigurationElement { |
| static final ConfigurationElementHandle[] EMPTY_ARRAY = new ConfigurationElementHandle[0]; |
| |
| public ConfigurationElementHandle(IObjectManager objectManager, int id) { |
| super(objectManager, id); |
| } |
| |
| protected ConfigurationElement getConfigurationElement() { |
| return (ConfigurationElement) objectManager.getObject(getId(), RegistryObjectManager.CONFIGURATION_ELEMENT); |
| } |
| |
| protected boolean shouldPersist() { |
| return getConfigurationElement().shouldPersist(); |
| } |
| |
| public String getAttribute(String propertyName) { |
| return getConfigurationElement().getAttribute(propertyName); |
| } |
| |
| public String[] getAttributeNames() { |
| return getConfigurationElement().getAttributeNames(); |
| } |
| |
| public IConfigurationElement[] getChildren() { |
| ConfigurationElement actualCe = getConfigurationElement(); |
| if (actualCe.noExtraData()) { |
| return (IConfigurationElement[]) objectManager.getHandles(actualCe.getRawChildren(), RegistryObjectManager.CONFIGURATION_ELEMENT); |
| } |
| return (IConfigurationElement[]) objectManager.getHandles(actualCe.getRawChildren(), RegistryObjectManager.THIRDLEVEL_CONFIGURATION_ELEMENT); |
| } |
| |
| public Object createExecutableExtension(String propertyName) throws CoreException { |
| try { |
| return getConfigurationElement().createExecutableExtension(propertyName); |
| } catch (InvalidRegistryObjectException e) { |
| Status status = new Status(IStatus.ERROR, RegistryMessages.OWNER_NAME, IRegistryConstants.PLUGIN_ERROR, "Invalid registry object", e); //$NON-NLS-1$ |
| if (objectManager instanceof RegistryObjectManager) |
| ((RegistryObjectManager) objectManager).getRegistry().log(status); |
| throw new CoreException(status); |
| } |
| } |
| |
| public String getAttributeAsIs(String name) { |
| return getConfigurationElement().getAttributeAsIs(name); |
| } |
| |
| public IConfigurationElement[] getChildren(String name) { |
| ConfigurationElement actualCE = getConfigurationElement(); |
| ConfigurationElement[] children = (ConfigurationElement[]) objectManager.getObjects(actualCE.getRawChildren(), actualCE.noExtraData() ? RegistryObjectManager.CONFIGURATION_ELEMENT : RegistryObjectManager.THIRDLEVEL_CONFIGURATION_ELEMENT); |
| if (children.length == 0) |
| return ConfigurationElementHandle.EMPTY_ARRAY; |
| |
| IConfigurationElement[] result = new IConfigurationElement[1]; |
| int idx = 0; |
| for (int i = 0; i < children.length; i++) { |
| if (children[i].getName().equals(name)) { |
| if (idx != 0) { |
| IConfigurationElement[] copy = new IConfigurationElement[result.length + 1]; |
| System.arraycopy(result, 0, copy, 0, result.length); |
| result = copy; |
| } |
| result[idx++] = (IConfigurationElement) objectManager.getHandle(children[i].getObjectId(), actualCE.noExtraData() ? RegistryObjectManager.CONFIGURATION_ELEMENT : RegistryObjectManager.THIRDLEVEL_CONFIGURATION_ELEMENT); |
| } |
| } |
| if (idx == 0) |
| return ConfigurationElementHandle.EMPTY_ARRAY; |
| return result; |
| } |
| |
| public IExtension getDeclaringExtension() { |
| Object result = this; |
| while (!((result = ((ConfigurationElementHandle) result).getParent()) instanceof ExtensionHandle)) { /*do nothing*/ |
| } |
| return (IExtension) result; |
| } |
| |
| public String getName() { |
| return getConfigurationElement().getName(); |
| } |
| |
| public Object getParent() { |
| ConfigurationElement actualCe = getConfigurationElement(); |
| return objectManager.getHandle(actualCe.parentId, actualCe.parentType); |
| } |
| |
| public String getValue() { |
| return getConfigurationElement().getValue(); |
| } |
| |
| public String getValueAsIs() { |
| return getConfigurationElement().getValueAsIs(); |
| } |
| |
| RegistryObject getObject() { |
| return getConfigurationElement(); |
| } |
| |
| // Method left for backward compatibility only |
| public String getNamespace() { |
| return getContributor().getName(); |
| } |
| |
| public String getNamespaceIdentifier() { |
| // namespace name is determined by the contributing extension |
| return getDeclaringExtension().getNamespaceIdentifier(); |
| } |
| |
| public IContributor getContributor() { |
| return getConfigurationElement().getContributor(); |
| } |
| |
| public boolean isValid() { |
| try { |
| getConfigurationElement(); |
| } catch (InvalidRegistryObjectException e) { |
| return false; |
| } |
| return true; |
| } |
| } |