/** * Copyright 2010-2015 Axel Fontaine * <p/> * 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 * <p/> * http://www.apache.org/licenses/LICENSE-2.0 * <p/> * 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.contrastsecurity.cassandra.migration.info; import com.contrastsecurity.cassandra.migration.utils.DateUtils; import com.contrastsecurity.cassandra.migration.utils.StringUtils; /** * Dumps migrations in an ascii-art table in the logs and the console. */ public class MigrationInfoDumper { private static final String VERSION_TITLE = "Version"; private static final String DESCRIPTION_TITLE = "Description"; /** * Prevent instantiation. */ private MigrationInfoDumper() { // Do nothing } /** * Dumps the info about all migrations into an ascii table. * * @param migrationInfos The list of migrationInfos to dump. * @return The ascii table, as one big multi-line string. */ public static String dumpToAsciiTable(final MigrationInfo[] migrationInfos) { int versionWidth = VERSION_TITLE.length(); int descriptionWidth = DESCRIPTION_TITLE.length(); for (MigrationInfo migrationInfo : migrationInfos) { versionWidth = Math.max(versionWidth, migrationInfo.getVersion().toString().length()); descriptionWidth = Math.max(descriptionWidth, migrationInfo.getDescription().length()); } String ruler = "+-" + StringUtils.trimOrPad("", versionWidth, '-') + "-+-" + StringUtils.trimOrPad("", descriptionWidth, '-') + "-+---------------------+---------+\n"; StringBuilder table = new StringBuilder(); table.append(ruler); table.append("| ").append(StringUtils.trimOrPad(VERSION_TITLE, versionWidth, ' ')) .append(" | ").append(StringUtils.trimOrPad(DESCRIPTION_TITLE, descriptionWidth)) .append(" | Installed on | State |\n"); table.append(ruler); if (migrationInfos.length == 0) { table.append(StringUtils.trimOrPad("| No migrations found", ruler.length() - 2, ' ')).append("|\n"); } else { for (MigrationInfo migrationInfo : migrationInfos) { table.append("| ").append(StringUtils.trimOrPad(migrationInfo.getVersion().toString(), versionWidth)); table.append(" | ").append(StringUtils.trimOrPad(migrationInfo.getDescription(), descriptionWidth)); table.append(" | ").append(StringUtils.trimOrPad(DateUtils.formatDateAsIsoString(migrationInfo.getInstalledOn()), 19)); table.append(" | ").append(StringUtils.trimOrPad(migrationInfo.getState().getDisplayName(), 7)); table.append(" |\n"); } } table.append(ruler); return table.toString(); } }