Java tutorial
/* * Copyright 2017 Otavio Santana and others * 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 org.jnosql.artemis.reflection; import java.util.Map; import java.util.concurrent.ConcurrentHashMap; import javax.annotation.PostConstruct; import javax.enterprise.context.ApplicationScoped; import javax.inject.Inject; import org.apache.commons.lang3.builder.ToStringBuilder; import org.apache.commons.lang3.builder.ToStringStyle; /** * The default implementation of {@link ClassRepresentation}. * It's storage the class information in a {@link ConcurrentHashMap} */ @ApplicationScoped class DefaultClassRepresentations implements ClassRepresentations { private Map<String, ClassRepresentation> representations; @Inject private ClassConverter classConverter; @Inject private ClassRepresentationsExtension extension; @PostConstruct public void init() { representations = new ConcurrentHashMap<>(); representations.putAll(extension.getRepresentations()); } void load(Class classEntity) { ClassRepresentation classRepresentation = classConverter.create(classEntity); representations.put(classEntity.getName(), classRepresentation); } @Override public ClassRepresentation get(Class classEntity) { ClassRepresentation classRepresentation = representations.get(classEntity.getName()); if (classRepresentation == null) { load(classEntity); return this.get(classEntity); } return classRepresentation; } @Override public ClassRepresentation findByName(String name) throws ClassInformationNotFoundException { return representations.keySet().stream().map(k -> representations.get(k)) .filter(r -> r.getName().equalsIgnoreCase(name)).findFirst() .orElseThrow(() -> new ClassInformationNotFoundException( "There is not entity found with the name: " + name)); } @Override public String toString() { return new ToStringBuilder(this, ToStringStyle.SIMPLE_STYLE).append("REPRESENTATIONS", representations) .toString(); } }