/*
* Copyright 2002-2017 the original author or authors.
*
* 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.springframework.context.index;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
/**
* Marshaller to write {@link CandidateComponentsMetadata} as properties.
*
* @author Stephane Nicoll
* @since 5.0
*/
abstract class PropertiesMarshaller {
public static void write(CandidateComponentsMetadata metadata, OutputStream out) throws IOException {
Properties props = new Properties();
metadata.getItems().forEach(m -> props.put(m.getType(), String.join(",", m.getStereotypes())));
props.store(out, "");
}
public static CandidateComponentsMetadata read(InputStream in) throws IOException {
CandidateComponentsMetadata result = new CandidateComponentsMetadata();
Properties props = new Properties();
props.load(in);
for (Map.Entry<Object, Object> entry : props.entrySet()) {
String type = (String) entry.getKey();
Set<String> candidates = new HashSet<>(Arrays.asList(((String) entry.getValue()).split(",")));
result.add(new ItemMetadata(type, candidates));
}
return result;
}
}