| /******************************************************************************* |
| * Copyright (c) 2005 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.ui.commands; |
| |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Hashtable; |
| import java.util.Map; |
| import java.util.StringTokenizer; |
| |
| import org.eclipse.core.commands.IParameterValues; |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.core.runtime.IExecutableExtension; |
| |
| /** |
| * <p> |
| * A generic implementation of <code>IParameterValues</code> that takes advantage |
| * of the <code>IExecutableExtension</code> mechanism. The parameter values and names can be |
| * specified purely in XML. This can be done as follows: |
| * </p> |
| * <p><pre><code> |
| * <command |
| * name="%name" |
| * description="%description" |
| * categoryId="categoryId" |
| * id="commandId"> |
| * <parameter |
| * id="parameterId" |
| * name="%parameterName"> |
| * <values class="org.eclipse.ui.commands.ExtensionParameterValues"> |
| * <parameter name="%parameterName1" value="parameterValue1" /> |
| * <parameter name="%parameterName2" value="parameterValue2" /> |
| * <parameter name="%parameterName3" value="parameterValue3" /> |
| * </values> |
| * </parameter> |
| * </command> |
| * </code></pre></p> |
| * |
| * @since 3.1 |
| */ |
| public final class ExtensionParameterValues implements IParameterValues, |
| IExecutableExtension { |
| |
| /** |
| * The delimiter between elements if the name-value pairs are specified in a |
| * single string. |
| */ |
| public static final String DELIMITER = ","; //$NON-NLS-1$ |
| |
| /** |
| * The parameter values for this instance. This is initialization when the |
| * executable extension is created. For example, |
| */ |
| private Map parameterValues = null; |
| |
| public Map getParameterValues() { |
| return parameterValues; |
| } |
| |
| public final void setInitializationData(final IConfigurationElement config, |
| final String propertyName, final Object data) { |
| if (data == null) { |
| parameterValues = Collections.EMPTY_MAP; |
| |
| } else if (data instanceof String) { |
| parameterValues = new HashMap(); |
| final StringTokenizer tokenizer = new StringTokenizer( |
| (String) data, DELIMITER); |
| while (tokenizer.hasMoreTokens()) { |
| final String name = tokenizer.nextToken(); |
| if (tokenizer.hasMoreTokens()) { |
| final String value = tokenizer.nextToken(); |
| parameterValues.put(name, value); |
| } |
| } |
| parameterValues = Collections.unmodifiableMap(parameterValues); |
| |
| } else if (data instanceof Hashtable) { |
| parameterValues = Collections.unmodifiableMap((Hashtable) data); |
| |
| } |
| |
| } |
| } |