f04fc3c0dc
* Moves abstract-factory pattern to java 11 * Moves abstract-document pattern to java 11 * Moves acyclic-visitor pattern to java 11 * Moves adapter pattern to java 11 * Moves aggregator-microservices pattern to java 11 * Moves api-gateway pattern to java 11
78 lines
2.5 KiB
Java
78 lines
2.5 KiB
Java
/*
|
|
* The MIT License
|
|
* Copyright © 2014-2019 Ilkka Seppälä
|
|
*
|
|
* 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:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* 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.Collection;
|
|
import java.util.List;
|
|
import java.util.Map;
|
|
import java.util.Objects;
|
|
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) {
|
|
return Stream.ofNullable(get(key))
|
|
.filter(Objects::nonNull)
|
|
.map(el -> (List<Map<String, Object>>) el)
|
|
.findAny()
|
|
.stream()
|
|
.flatMap(Collection::stream)
|
|
.map(constructor);
|
|
}
|
|
|
|
@Override
|
|
public String toString() {
|
|
var builder = new StringBuilder();
|
|
builder.append(getClass().getName()).append("[");
|
|
properties.forEach((key, value) -> builder.append("[").append(key).append(" : ").append(value)
|
|
.append("]"));
|
|
builder.append("]");
|
|
return builder.toString();
|
|
}
|
|
|
|
}
|