| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 com.kenshoo.freemarker.platform; |
| |
| import com.fasterxml.jackson.dataformat.yaml.snakeyaml.Yaml; |
| import org.springframework.util.PropertiesPersister; |
| import org.springframework.util.StringUtils; |
| |
| import java.io.*; |
| import java.util.Map; |
| import java.util.Properties; |
| |
| /** |
| * Created with IntelliJ IDEA. |
| * User: shlomis |
| * Date: 9/8/13 |
| * Time: 10:50 PM |
| */ |
| public class YamlPropertiesPersister implements PropertiesPersister { |
| @Override |
| public void load(Properties props, InputStream is) throws IOException { |
| load(props, new InputStreamReader(is)); |
| } |
| |
| /** |
| * We want to traverse map representing Yaml object and each time we find String=String pair we want to |
| * save it as Property. As we are going deeper into map we generate compound key as path-like String |
| * |
| * @see org.springframework.util.PropertiesPersister#load(java.util.Properties, java.io.Reader) |
| */ |
| @Override |
| public void load(Properties props, Reader reader) throws IOException { |
| Yaml yaml = new Yaml(); |
| @SuppressWarnings("unchecked") |
| Map<String, Object> map = (Map<String, Object>) yaml.load(reader); |
| // now we can populate supplied props |
| assignProperties(props, map, null); |
| } |
| |
| @SuppressWarnings("unchecked") |
| public void assignProperties(Properties props, Map<String, Object> map, String path) { |
| for (Map.Entry<String, Object> entry : map.entrySet()) { |
| String key = entry.getKey(); |
| if (!StringUtils.isEmpty(path)) |
| key = path + "." + key; |
| Object val = entry.getValue(); |
| if (val instanceof String) { |
| // see if we need to create a compound key |
| props.put(key, val); |
| } else if (val instanceof Map) { |
| assignProperties(props, (Map<String, Object>) val, key); |
| } |
| } |
| } |
| |
| @Override |
| public void store(Properties props, OutputStream os, String header) throws IOException { |
| throw new IllegalStateException("Current implementation is a read-only"); |
| } |
| |
| @Override |
| public void store(Properties props, Writer writer, String header) throws IOException { |
| throw new IllegalStateException("Current implementation is a read-only"); |
| } |
| |
| @Override |
| public void loadFromXml(Properties props, InputStream is) throws IOException { |
| throw new IllegalStateException("Use DefaultPropertiesPersister if you want to read/write XML"); |
| } |
| |
| @Override |
| public void storeToXml(Properties props, OutputStream os, String header) throws IOException { |
| throw new IllegalStateException("Use DefaultPropertiesPersister if you want to load/store to XML"); |
| } |
| |
| @Override |
| public void storeToXml(Properties props, OutputStream os, String header, String encoding) throws IOException { |
| throw new IllegalStateException("Use DefaultPropertiesPersister if you want to read/write XML"); |
| } |
| } |