| /* |
| Derby - WwdUtils.java - utilitity methods used by WwdEmbedded.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. |
| |
| */ |
| |
| import java.io.*; |
| import java.sql.*; |
| public class WwdUtils { |
| |
| /***************** |
| ** Asks user to enter a wish list item or 'exit' to exit the loop - returns |
| ** the string entered - loop should exit when the string 'exit' is returned |
| ******************/ |
| public static String getWishItem() { |
| BufferedReader br = new BufferedReader( new InputStreamReader(System.in)); |
| String ans = ""; |
| try |
| { |
| while ( ans.length() == 0 ) { |
| System.out.println("Enter wish-list item (enter exit to end): "); |
| ans = br.readLine(); |
| if ( ans.length() == 0 ) |
| System.out.print("Nothing entered: "); |
| } |
| } catch (java.io.IOException e) { |
| System.out.println("Could not read response from stdin"); |
| } |
| return ans; |
| } /** END getWishItem ***/ |
| |
| /*** Check for WISH_LIST table ****/ |
| public static boolean wwdChk4Table (Connection conTst ) throws SQLException { |
| boolean chk = true; |
| boolean doCreate = false; |
| try { |
| Statement s = conTst.createStatement(); |
| s.execute("update WISH_LIST set ENTRY_DATE = CURRENT_TIMESTAMP, WISH_ITEM = 'TEST ENTRY' where 1=3"); |
| } catch (SQLException sqle) { |
| String theError = (sqle).getSQLState(); |
| // System.out.println(" Utils GOT: " + theError); |
| /** If table exists will get - WARNING 02000: No row was found **/ |
| if (theError.equals("42X05")) // Table does not exist |
| { return false; |
| } else if (theError.equals("42X14") || theError.equals("42821")) { |
| System.out.println("WwdChk4Table: Incorrect table definition. Drop table WISH_LIST and rerun this program"); |
| throw sqle; |
| } else { |
| System.out.println("WwdChk4Table: Unhandled SQLException" ); |
| throw sqle; |
| } |
| } |
| // System.out.println("Just got the warning - table exists OK "); |
| return true; |
| } /*** END wwdInitTable **/ |
| |
| |
| public static void main (String[] args) { |
| // This method allows stand-alone testing of the getWishItem method |
| String answer; |
| do { |
| answer = getWishItem(); |
| if (! answer.equals("exit")) { |
| System.out.println ("You said: " + answer); |
| } |
| } while (! answer.equals("exit")) ; |
| } |
| |
| } |