Revision 576
Added by bojilova almost 24 years ago
| src/edu/ucsb/nceas/metacat/AccessionNumber.java | ||
|---|---|---|
| 28 | 28 |
public class AccessionNumber {
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| 29 | 29 |
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private Connection conn = null; |
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private String server = null; |
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| 31 | 32 |
private String defaultGlobalName = null; |
| 32 | 33 |
private String sep = null; |
| 33 | 34 |
|
| ... | ... | |
| 39 | 40 |
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MetaCatUtil util = new MetaCatUtil(); |
| 41 | 42 |
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this.server = util.getOption("server");
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this.defaultGlobalName = util.getOption("defaultGlobalName");
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| 43 | 45 |
this.sep = util.getOption("accNumberSeparator");
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| 44 | 46 |
|
| ... | ... | |
| 55 | 57 |
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| 56 | 58 |
MetaCatUtil util = new MetaCatUtil(); |
| 57 | 59 |
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this.server = util.getOption("server");
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this.defaultGlobalName = util.getOption("defaultGlobalName");
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this.sep = util.getOption("accNumberSeparator");
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this.conn = conn; |
| ... | ... | |
| 62 | 65 |
} |
| 63 | 66 |
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| 64 | 67 |
/** |
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* Generate an Accession Number of form <sidecode>.<createdate> |
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*/ |
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public String generate(String accNumber, String action) |
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throws AccessionNumberException, SQLException |
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{
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try {
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// INSERT |
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if ( action.equals("INSERT")) {
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// get a new Accession# |
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if ( accNumber == null ) {
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String sidecode = getSidecode(); |
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String createdate = getSysdate(); |
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return sidecode + "." + createdate; |
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|
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// Accession# is not used; return it |
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} else if ( !accNumberUsed(accNumber) ) {
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return accNumber; |
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// Accession# is used; throw an exception to prevent the insertion |
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} else {
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throw new AccessionNumberException |
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("Accession number " + accNumber + " is already in use.");
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} |
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// UPDATE or DELETE |
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} else if ( action.equals("UPDATE") || action.equals("DELETE")) {
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// Accession# is not provided; throw an exception to prevent the action |
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if ( accNumber == null ) {
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throw new AccessionNumberException("Accession number is required.");
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// Accession# is not current (not in xml_documents); throw an exception |
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} else if ( !accNumberIsCurrent(accNumber) ) {
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throw new AccessionNumberException |
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("Document not found for Accession number " + accNumber);
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// Accession# is current (present in xml_documents); return it |
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} else {
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return accNumber; |
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} |
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} |
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} catch (SQLException e) {
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throw new SQLException |
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("Error on AccessionNumber.generate(accNumber, action): "+e.getMessage());
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} |
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// never comes here |
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throw new |
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AccessionNumberException("Fatal Error in accession number generation.");
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} |
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// get local server name |
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private String getSidecode() |
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{
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return this.server; |
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} |
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|
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// get today date from db connection |
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private String getSysdate () throws SQLException |
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{
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String sysdate; |
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try {
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PreparedStatement pstmt; |
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pstmt = conn.prepareStatement |
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("SELECT to_char(sysdate,'mmddyyyyhhmiss') FROM dual");
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pstmt.execute(); |
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ResultSet rs = pstmt.getResultSet(); |
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boolean hasRow = rs.next(); |
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sysdate= rs.getString(1); |
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pstmt.close(); |
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} catch (SQLException e) {
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throw new |
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SQLException("Error on AccessionNumber.getSysdate(): " + e.getMessage());
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} |
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return sysdate; |
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} |
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|
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/////////////////////////////////////////////////////////// |
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// THE OLD APPROACH - accession# of form globalname:localid |
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/** |
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* Get an Accession Number, check it for uniqueness and |
| 66 | 156 |
* register it into db connection. If no Accession Number is |
| 67 | 157 |
* provided, generate one from the database and return it. |
| ... | ... | |
| 74 | 164 |
* When "UPDATE", accession # is required and it is checked for existance. |
| 75 | 165 |
* When "DELETE", accession # is required and it is checked for existance. |
| 76 | 166 |
*/ |
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public String generate (String accNumber, String action)
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public String gen (String accNumber, String action) |
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throws AccessionNumberException, SQLException {
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| 79 | 169 |
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String globalName = null; |
| ... | ... | |
| 96 | 186 |
if ( accNumber == null ) {
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| 97 | 187 |
return put(defaultGlobalName, null, sep); |
| 98 | 188 |
// Acc# is not used; return it |
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} else if ( !accNumberUsed(globalName, localId) ) {
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} else if ( !accNumberUsed(accNumber) ) {
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| 100 | 190 |
return put(globalName, localId, sep); |
| 101 | 191 |
// Acc# is used; throw an exception to prevent the insertion |
| 102 | 192 |
} else {
|
| ... | ... | |
| 134 | 224 |
} |
| 135 | 225 |
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throw (new AccessionNumberException("Fatal Error in " +
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"accession number generation: "));
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"accession number generation")); |
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} |
| 139 | 229 |
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/** put unique accession # into db connection */ |
| ... | ... | |
| 172 | 262 |
} |
| 173 | 263 |
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/** check for existence of Accesssion Number xml_acc_numbers table */ |
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private boolean accNumberUsed(String globalName, String localId)
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throws SQLException {
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private boolean accNumberUsed ( String accNumber )
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throws SQLException {
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boolean hasAccNumber = false; |
| 179 | 269 |
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try {
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PreparedStatement pstmt; |
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pstmt = conn.prepareStatement( |
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"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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"SELECT 'x' FROM xml_documents " + |
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"WHERE docid LIKE ? " + |
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"UNION " + |
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"SELECT 'x' FROM xml_revisions " + |
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"WHERE docid LIKE ?"); |
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pstmt.setString(1,accNumber); |
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pstmt.setString(2,accNumber); |
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| 187 | 280 |
pstmt.execute(); |
| 188 | 281 |
ResultSet rs = pstmt.getResultSet(); |
| 189 | 282 |
hasAccNumber = rs.next(); |
| 190 | 283 |
pstmt.close(); |
| 191 | 284 |
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} catch (SQLException e) {
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throw new SQLException( |
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"Error on AccessionNumber.accNumberUsed(globalName, " + |
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"localId): " + e.getMessage()); |
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throw new SQLException |
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("Error on AccessionNumber.accNumberUsed(accNumber): " + e.getMessage());
|
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} |
| 197 | 289 |
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return hasAccNumber; |
| ... | ... | |
| 267 | 359 |
|
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/** |
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* '$Log$ |
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* 'Revision 1.14 2000/09/28 18:05:46 bojilova |
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* 'Changed to prevent the insertion if the provided Accession# is in use as Dan suggested. |
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* ' |
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| 270 | 365 |
* 'Revision 1.13 2000/09/20 20:15:58 bojilova |
| 271 | 366 |
* 'change Assession# generation to use the same db connection |
| 272 | 367 |
* ' |
Also available in: Unified diff
change the generation of Accession# in the form of <sidecode>.<createdate>