org.jnosql.artemis.reflection.DefaultClassRepresentations.java Source code

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/*
 * 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();
    }

}