| /* |
| * Copyright (c) 2018 Eike Stepper (Berlin, Germany) 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: |
| * Eike Stepper - initial API and implementation |
| */ |
| package org.eclipse.net4j.util.factory; |
| |
| import org.eclipse.net4j.util.StringUtil; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * @author Eike Stepper |
| * @since 3.8 |
| */ |
| public abstract class PropertiesFactory extends Factory |
| { |
| public static final String PROPERTY_SEPARATOR = "|"; |
| |
| public static final String DEFAULT_KEY = "_"; |
| |
| public PropertiesFactory(FactoryKey key) |
| { |
| super(key); |
| } |
| |
| public PropertiesFactory(String productGroup, String type) |
| { |
| super(productGroup, type); |
| } |
| |
| public Object create(String description) throws ProductCreationException |
| { |
| Map<String, String> properties = new HashMap<String, String>(); |
| |
| if (!StringUtil.isEmpty(description)) |
| { |
| String[] segments = description.split("\\" + PROPERTY_SEPARATOR); |
| for (String segment : segments) |
| { |
| if (!StringUtil.isEmpty(segment)) |
| { |
| int pos = segment.indexOf('='); |
| if (pos != -1) |
| { |
| String key = segment.substring(0, pos).trim(); |
| String value = segment.substring(pos + 1).trim(); |
| properties.put(key, value); |
| } |
| else |
| { |
| properties.put(DEFAULT_KEY, segment); |
| } |
| } |
| } |
| } |
| |
| return create(properties); |
| } |
| |
| protected abstract Object create(Map<String, String> properties) throws ProductCreationException; |
| |
| public static String createDescription(Map<String, String> properties) |
| { |
| StringBuilder builder = new StringBuilder(); |
| |
| String defaultValue = properties.remove(DEFAULT_KEY); |
| if (!StringUtil.isEmpty(defaultValue)) |
| { |
| builder.append(defaultValue); |
| } |
| |
| for (Map.Entry<String, String> entry : properties.entrySet()) |
| { |
| if (builder.length() != 0) |
| { |
| builder.append(PROPERTY_SEPARATOR); |
| } |
| |
| builder.append(entry.getKey()); |
| builder.append("="); |
| builder.append(entry.getValue()); |
| } |
| |
| return builder.toString(); |
| } |
| } |