io.fabric8.jube.model.EntityModelSupport Maven / Gradle / Ivy

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/**
 *  Copyright 2005-2014 Red Hat, Inc.
 *
 *  Red Hat 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 io.fabric8.jube.model;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

import com.fasterxml.jackson.databind.ObjectMapper;
import io.fabric8.kubernetes.api.KubernetesFactory;

/**
 * A base implementation of {@link EntityModel}
 */
public abstract class EntityModelSupport implements EntityModel {
    private final ConcurrentHashMap map = new ConcurrentHashMap<>();
    private final Class clazz;
    private final ObjectMapper objectMapper;

    protected EntityModelSupport(Class clazz) {
        this(clazz, KubernetesFactory.createObjectMapper());
    }

    protected EntityModelSupport(Class clazz, ObjectMapper objectMapper) {
        this.clazz = clazz;
        this.objectMapper = objectMapper;
    }

    @Override
    public T deleteEntity(String id) {
        return map.remove(id);
    }

    public T getEntity(String id) {
        return map.get(id);
    }

    public Map getMap() {
        return new HashMap<>(map);
    }

    @Override
    public T updateEntity(String id, byte[] data) throws IOException {
        T entity = unmarshal(data);
        map.put(id, entity);
        return entity;
    }

    @Override
    public String marshal(T entity) throws IOException {
        return objectMapper.writerWithType(clazz).writeValueAsString(entity);
    }

    @Override
    public T unmarshal(byte[] data) throws IOException {
        return objectMapper.reader(clazz).readValue(data);
    }
}