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145
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bojilova
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/**
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* Name: AccessionNumber.java
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* Purpose: A class that gets Accession Number, check for uniqueness
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* and register it into db
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* Copyright: 2000 Regents of the University of California and the
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* National Center for Ecological Analysis and Synthesis
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* Authors: Jivka Bojilova
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*
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* Version: '$Id$'
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*/
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package edu.ucsb.nceas.metacat;
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import java.net.*;
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import java.sql.*;
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147
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bojilova
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/**
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* A class that gets Accession Number, check for uniqueness and register it
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* into db connection
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*/
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145
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bojilova
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public class AccessionNumber {
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String globalName;
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String localId;
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String accNumber;
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Connection conn;
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147
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bojilova
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/** Split the Accession Number in 2 parts by ":" character
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*
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* @param conn the JDBC Connection to which all information is written
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* @param accNumber the Accession Number provided for processing
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*
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*/
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145
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bojilova
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public AccessionNumber (Connection conn, String accNumber) {
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this.conn = conn;
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this.globalName = getGlobalName(accNumber);
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this.localId = getLocalId(accNumber);
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this.accNumber = put();
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}
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/** check for existance of Accesssion Number */
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public boolean check (String globalName, String localId) {
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boolean hasAccNumber = false;
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try {
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PreparedStatement pstmt;
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pstmt = conn.prepareStatement("SELECT 'x' FROM xml_acc_numbers " +
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"WHERE global_name LIKE ? AND local_id = ?");
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pstmt.setString(1,globalName);
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pstmt.setString(2,localId);
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pstmt.execute();
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ResultSet rs = pstmt.getResultSet();
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hasAccNumber = rs.next();
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pstmt.close();
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} catch (SQLException e) {
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System.out.println("Error on AccessionNumber.check(globalName, localId): " + e.getMessage());
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}
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return hasAccNumber;
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}
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//** get the last in order local ID by a given global name */
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public int get (String globalName) {
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try {
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PreparedStatement pstmt;
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pstmt = conn.prepareStatement("SELECT max(local_id) FROM xml_acc_numbers " +
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"WHERE global_name LIKE ?");
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pstmt.setString(1,globalName);
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pstmt.execute();
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ResultSet rs = pstmt.getResultSet();
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boolean hasLocalId = rs.next();
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if (hasLocalId)
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return rs.getInt(1);
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pstmt.close();
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} catch (SQLException e) {
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System.out.println("Error on AccessionNumber.get(): " + e.getMessage());
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}
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return -1;
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}
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//** register next unique number for a local ID by a given global name */
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public String put () {
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if (!check(globalName, localId)) {
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put(globalName, localId);
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return globalName + ":" + localId;
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} else {
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// get max local Id, put next Id
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int l = get(globalName);
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System.out.println(l);
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if ( l == -1 ) l = 1;
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else l += 1;
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put (globalName, (new Integer(l)).toString());
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return globalName + ":" + l;
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}
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}
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private void put (String globalName, String localId) {
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try {
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PreparedStatement pstmt;
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pstmt = conn.prepareStatement("INSERT INTO xml_acc_numbers (global_name, local_id) " +
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"VALUES (?, ?)");
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pstmt.setString(1,globalName);
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pstmt.setString(2,localId);
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pstmt.execute();
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} catch (SQLException e) {
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System.out.println("Error on AccessionNumber.put(globalName, localId): " + e.getMessage());
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}
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}
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// get the global part of the accession number
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private String getGlobalName (String accNumber)
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throws StringIndexOutOfBoundsException {
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return accNumber.substring(0, accNumber.lastIndexOf(":"));
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}
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// get the local part of the accession number
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private String getLocalId (String accNumber)
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throws StringIndexOutOfBoundsException {
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return accNumber.substring(accNumber.lastIndexOf(":")+1);
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}
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static public void main(String[] args) {
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String defaultDB = "jdbc:oracle:thin:@penelope.nceas.ucsb.edu:1526:DEV8";
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if (args.length < 4)
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{
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System.err.println("Wrong number of arguments!!!");
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System.err.println("USAGE: java AccessionNumber " +
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"<userID> <accessionNumber> <user> <password> [dbstring]");
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return;
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} else {
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try {
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String userID = args[0];
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String accNum = args[1];
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String user = args[2];
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String password = args[3];
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String dbstring = null;
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if (args.length <= 4)
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dbstring = defaultDB;
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else
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dbstring = args[4];
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// Open a connection to the database
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// Load the Oracle JDBC driver
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Class.forName ("oracle.jdbc.driver.OracleDriver");
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// Connect to the database
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Connection conn = DriverManager.getConnection( dbstring, user, password);
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AccessionNumber an = new AccessionNumber(conn, accNum);
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System.out.println("Accession Number registration finished for: " + an.accNumber);
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} catch (Exception e) {
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System.err.println(e.getMessage());
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}
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}
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}
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}
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