/*
 * 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.apache.openejb.jpa.integration.hibernate;

import org.apache.openejb.jpa.integration.JPAThreadContext;
import org.hibernate.cfg.ImprovedNamingStrategy;

import java.util.Properties;

public class PrefixNamingStrategy extends ImprovedNamingStrategy {
    private String prefix;

    @Override
    public String tableName(final String tableName) {
        return getPrefix() + super.tableName(tableName);
    }

    @Override
    public String classToTableName(final String className) {
        return getPrefix() + super.classToTableName(className);
    }

    public String getPrefix() {
        if (prefix == null) {
            if (JPAThreadContext.infos.containsKey("properties")) {
                prefix = ((Properties) JPAThreadContext.infos.get("properties")).getProperty("openejb.jpa.table_prefix");
            }
            if (prefix == null) {
                prefix = "";
            }
        }
        return prefix;
    }
}
