Java tutorial
/* * Copyright (c) 2015 Cloudera, Inc. * * 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.cloudera.nav.sdk.model; import com.google.common.base.Preconditions; import org.apache.commons.lang.StringUtils; public class HiveIdGenerator { public static String generateTableId(String sourceId, String databaseName, String tableName) { Preconditions.checkArgument( !StringUtils.isEmpty(sourceId) && !StringUtils.isEmpty(databaseName) && !StringUtils.isEmpty(tableName), "SourceId, database name, and table name must be supplied to " + "generate Hive table identity"); return MD5IdGenerator.generateIdentity(sourceId, databaseName.toUpperCase(), tableName.toUpperCase()); } public static String generateColumnId(String sourceId, String databaseName, String tableName, String columnName) { Preconditions.checkArgument( !StringUtils.isEmpty(sourceId) && !StringUtils.isEmpty(databaseName) && !StringUtils.isEmpty(tableName) && !StringUtils.isEmpty(columnName), "SourceId, database name, table name, and column name must be " + "supplied to generate Hive column identity"); return MD5IdGenerator.generateIdentity(sourceId, databaseName.toUpperCase(), tableName.toUpperCase(), columnName.toUpperCase()); } }