HANAInitializer.java example

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// Copyright (C) 2016 The Android Open Source Project
//
// Licensed 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 com.google.gerrit.pgm.init;

import static com.google.gerrit.pgm.init.api.InitUtil.username;

import com.google.common.primitives.Ints;
import com.google.gerrit.pgm.init.api.InitUtil;
import com.google.gerrit.pgm.init.api.Section;

public class HANAInitializer implements DatabaseConfigInitializer {

  @Override
  public void initConfig(Section databaseSection) {
    final String defInstanceNumber = "00";
    databaseSection.string("Server hostname", "hostname", "localhost");
    databaseSection.string("Instance number", "instance", defInstanceNumber, false);
    String instance = databaseSection.get("instance");
    Integer instanceNumber = Ints.tryParse(instance);
    if (instanceNumber == null || instanceNumber < 0 || instanceNumber > 99) {
      instanceIsInvalid();
    }
    databaseSection.string("Database username", "username", username());
    databaseSection.password("username", "password");
  }

  private void instanceIsInvalid() {
    throw InitUtil.die("database.instance must be in the range of 00 to 99");
  }
}