service/src/main/java/org/apache/fineract/cn/provisioner/internal/util/JdbcUrlBuilder.java

/*
 * 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.fineract.cn.provisioner.internal.util;

final class JdbcUrlBuilder {

  enum DatabaseType {
    POSTGRESQL("jdbc:postgresql:");

    private final String prefix;

    DatabaseType(final String prefix) {
      this.prefix = prefix;
    }

    String prefix() {
      return this.prefix;
    }
  }

  private final DatabaseType type;
  private String host;
  private String port;
  private String instanceName;

  private JdbcUrlBuilder(final DatabaseType type) {
    super();
    this.type = type;
  }

  static JdbcUrlBuilder create(final DatabaseType type) {
    return new JdbcUrlBuilder(type);
  }

  JdbcUrlBuilder host(final String host) {
    this.host = host;
    return this;
  }

  JdbcUrlBuilder port(final String port) {
    this.port = port;
    return this;
  }

  JdbcUrlBuilder instanceName(final String instanceName) {
    this.instanceName = instanceName;
    return this;
  }

  String build() {
    switch (this.type) {
      case POSTGRESQL:
        return this.type.prefix()
            + this.host + ":"
            + this.port
            + (this.instanceName != null ? "/" + this.instanceName : "");
      default:
        throw new IllegalArgumentException("Unknown database type '" + this.type.name() + "'");
    }
  }
}