73 lines
2.5 KiB
Java
73 lines
2.5 KiB
Java
/**
|
|
* The MIT License
|
|
* Copyright (c) 2014 Ilkka Seppälä
|
|
* <p>
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
* <p>
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
* <p>
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
package com.iluwatar.abstractdocument;
|
|
|
|
import java.util.List;
|
|
import java.util.Map;
|
|
import java.util.Objects;
|
|
import java.util.Optional;
|
|
import java.util.function.Function;
|
|
import java.util.stream.Stream;
|
|
|
|
/**
|
|
* Abstract implementation of Document interface
|
|
*/
|
|
public abstract class AbstractDocument implements Document {
|
|
|
|
private final Map<String, Object> properties;
|
|
|
|
protected AbstractDocument(Map<String, Object> properties) {
|
|
Objects.requireNonNull(properties, "properties map is required");
|
|
this.properties = properties;
|
|
}
|
|
|
|
@Override
|
|
public Void put(String key, Object value) {
|
|
properties.put(key, value);
|
|
return null;
|
|
}
|
|
|
|
@Override
|
|
public Object get(String key) {
|
|
return properties.get(key);
|
|
}
|
|
|
|
@Override
|
|
public <T> Stream<T> children(String key, Function<Map<String, Object>, T> constructor) {
|
|
Optional<List<Map<String, Object>>> any = Stream.of(get(key)).filter(el -> el != null)
|
|
.map(el -> (List<Map<String, Object>>) el).findAny();
|
|
return any.isPresent() ? any.get().stream().map(constructor) : Stream.empty();
|
|
}
|
|
|
|
@Override
|
|
public String toString() {
|
|
StringBuilder builder = new StringBuilder();
|
|
builder.append(getClass().getName()).append("[");
|
|
properties.entrySet()
|
|
.forEach(e -> builder.append("[").append(e.getKey()).append(" : ").append(e.getValue()).append("]"));
|
|
builder.append("]");
|
|
return builder.toString();
|
|
}
|
|
|
|
}
|