| /** |
| * Copyright (c) 2008-2010, http://code.google.com/p/snakeyaml/ |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.yaml.snakeyaml.extensions.compactnotation; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| import org.yaml.snakeyaml.constructor.Constructor; |
| import org.yaml.snakeyaml.nodes.ScalarNode; |
| |
| /** |
| * Construct a custom Java instance out of a compact format. |
| */ |
| public class CompactConstructor extends Constructor { |
| private static final Pattern FIRST_PATTERN = Pattern |
| .compile("(\\p{Alpha}\\w*)(\\s*)\\((.*?)\\)"); |
| private static final Pattern PROPERTY_NAME_PATTERN = Pattern |
| .compile("\\s*(\\p{Alpha}\\w*)\\s*=(.+)"); |
| |
| @Override |
| protected Object constructScalar(ScalarNode node) { |
| CompactData data = getCompactData(node.getValue()); |
| if (data != null) { |
| return constructCompactFormat(node, data); |
| } else { |
| return super.constructScalar(node); |
| } |
| } |
| |
| protected Object constructCompactFormat(ScalarNode node, CompactData data) { |
| System.out.println("TODO: " + data); |
| return super.constructScalar(node); |
| } |
| |
| public CompactData getCompactData(String scalar) { |
| if (!scalar.endsWith(")")) { |
| return null; |
| } |
| if (scalar.indexOf('(') < 0) { |
| return null; |
| } |
| Matcher m = FIRST_PATTERN.matcher(scalar); |
| if (m.matches()) { |
| String tag = m.group(1); |
| String content = m.group(3); |
| CompactData data = new CompactData(tag); |
| if (content.length() == 0) |
| return data; |
| String[] names = content.split("\\s*,\\s*"); |
| if (names.length == 0) { |
| return null; |
| } |
| for (int i = 0; i < names.length; i++) { |
| String section = names[i]; |
| if (section.indexOf('=') < 0) { |
| data.getArguments().add(section); |
| } else { |
| Matcher sm = PROPERTY_NAME_PATTERN.matcher(section); |
| if (sm.matches()) { |
| String name = sm.group(1); |
| String value = sm.group(2).trim(); |
| if ("".equals(value)) { |
| return null; |
| } |
| data.getProperties().put(name, value); |
| } else { |
| return null; |
| } |
| } |
| } |
| return data; |
| } |
| return null; |
| } |
| |
| class CompactData { |
| private String prefix; |
| private List<String> arguments = new ArrayList<String>(); |
| private Map<String, String> properties = new HashMap<String, String>(); |
| |
| public CompactData(String prefix) { |
| this.prefix = prefix; |
| } |
| |
| public String getPrefix() { |
| return prefix; |
| } |
| |
| public void setPrefix(String prefix) { |
| this.prefix = prefix; |
| } |
| |
| public Map<String, String> getProperties() { |
| return properties; |
| } |
| |
| public void setProperties(Map<String, String> properties) { |
| this.properties = properties; |
| } |
| |
| public List<String> getArguments() { |
| return arguments; |
| } |
| |
| public void setArguments(List<String> arguments) { |
| this.arguments = arguments; |
| } |
| |
| @Override |
| public String toString() { |
| return "CompactData: " + prefix + " " + properties; |
| } |
| } |
| } |