| /* |
| * 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.knox.gateway.shell.commands; |
| |
| import java.sql.Connection; |
| import java.sql.SQLException; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.knox.gateway.shell.CredentialCollectionException; |
| import org.apache.knox.gateway.shell.CredentialCollector; |
| import org.apache.knox.gateway.shell.KnoxDataSource; |
| import org.apache.knox.gateway.shell.table.KnoxShellTable; |
| import org.codehaus.groovy.tools.shell.Groovysh; |
| |
| public class DataSourceCommand extends AbstractSQLCommandSupport { |
| |
| public DataSourceCommand(Groovysh shell) { |
| super(shell, ":datasources", ":ds"); |
| } |
| |
| @SuppressWarnings({"unchecked", "PMD.CloseResource"}) |
| @Override |
| public Object execute(List<String> args) { |
| Map<String, KnoxDataSource> dataSources = |
| getDataSources(); |
| if (args.isEmpty()) { |
| args.add("list"); |
| } |
| if (args.get(0).equalsIgnoreCase("add")) { |
| KnoxDataSource ds = new KnoxDataSource(args.get(1), |
| args.get(2), |
| args.get(3), |
| args.get(4)); |
| dataSources.put(ds.getName(), ds); |
| getVariables().put(KNOXDATASOURCES, dataSources); |
| persistDataSources(); |
| } |
| else if (args.get(0).equalsIgnoreCase("remove")) { |
| if (dataSources == null || dataSources.isEmpty()) { |
| return "No datasources to remove."; |
| } |
| // if the removed datasource is currently selected, unselect it |
| dataSources.remove(args.get(1)); |
| if (getVariables().get(KNOXDATASOURCE) != null) { |
| if (args.get(1) != null) { |
| if (((String)getVariables().get(KNOXDATASOURCE)).equals(args.get(1))) { |
| System.out.println("unselecting datasource."); |
| getVariables().put(KNOXDATASOURCE, ""); |
| } |
| } |
| else { |
| System.out.println("Missing datasource name to remove."); |
| } |
| } |
| getVariables().put(KNOXDATASOURCES, dataSources); |
| persistDataSources(); |
| } |
| else if (args.get(0).equalsIgnoreCase("list")) { |
| // valid command no additional work needed though |
| } |
| else if(args.get(0).equalsIgnoreCase("select")) { |
| if (dataSources == null || dataSources.isEmpty()) { |
| return "No datasources to select from."; |
| } |
| KnoxDataSource dsValue = dataSources.get(args.get(1)); |
| Connection conn = getConnectionFromSession(dsValue); |
| try { |
| if (conn == null || conn.isClosed()) { |
| String username = null; |
| char[] pass = null; |
| if (dsValue.getAuthnType().equalsIgnoreCase("basic")) { |
| CredentialCollector dlg; |
| try { |
| dlg = login(); |
| } catch (CredentialCollectionException e) { |
| e.printStackTrace(); |
| return "Error: Credential collection failure."; |
| } |
| username = dlg.name(); |
| pass = dlg.chars(); |
| } |
| try { |
| getConnection(dsValue, username, new String(pass)); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| return "Error: Connection creation failure."; |
| } |
| } |
| } catch (SQLException e) { |
| e.printStackTrace(); |
| } |
| if (dataSources.containsKey(args.get(1))) { |
| getVariables().put(KNOXDATASOURCE, args.get(1)); |
| } |
| KnoxShellTable datasource = new KnoxShellTable(); |
| datasource.title("Knox DataSource Selected"); |
| datasource.header("Name").header("Connect String").header("Driver").header("Authn Type"); |
| datasource.row().value(dsValue.getName()).value(dsValue.getConnectStr()).value(dsValue.getDriver()).value(dsValue.getAuthnType()); |
| return datasource; |
| } |
| else { |
| return "ERROR: unknown datasources command."; |
| } |
| |
| return buildTable(); |
| } |
| |
| private KnoxShellTable buildTable() { |
| KnoxShellTable datasource = new KnoxShellTable(); |
| datasource.title("Knox DataSources"); |
| datasource.header("Name").header("Connect String").header("Driver").header("Authn Type"); |
| @SuppressWarnings("unchecked") |
| Map<String, KnoxDataSource> dataSources = |
| (Map<String, KnoxDataSource>) getVariables().get(KNOXDATASOURCES); |
| if (dataSources != null && !dataSources.isEmpty()) { |
| for(KnoxDataSource dsValue : dataSources.values()) { |
| datasource.row().value(dsValue.getName()).value(dsValue.getConnectStr()).value(dsValue.getDriver()).value(dsValue.getAuthnType()); |
| } |
| } |
| return datasource; |
| } |
| |
| public static void main(String[] args) { |
| DataSourceCommand cmd = new DataSourceCommand(new Groovysh()); |
| List<String> args2 = new ArrayList<>(); |
| cmd.execute(args2); |
| } |
| } |