Revision 618
Added by bojilova almost 24 years ago
| src/edu/ucsb/nceas/metacat/AccessionNumber.java | ||
|---|---|---|
| 28 | 28 |
public class AccessionNumber {
|
| 29 | 29 |
|
| 30 | 30 |
private Connection conn = null; |
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private String server = null; |
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private String defaultGlobalName = null; |
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private String sitecode = null; |
|
| 33 | 32 |
private String sep = null; |
| 34 | 33 |
|
| 35 | 34 |
/** |
| ... | ... | |
| 40 | 39 |
|
| 41 | 40 |
MetaCatUtil util = new MetaCatUtil(); |
| 42 | 41 |
|
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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.sitecode = util.getOption("sitecode");
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this.sep = util.getOption("accNumSeparator");
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| 46 | 44 |
|
| 47 | 45 |
// Open a connection to the database |
| 48 | 46 |
this.conn = util.openDBConnection(); |
| ... | ... | |
| 57 | 55 |
|
| 58 | 56 |
MetaCatUtil util = new MetaCatUtil(); |
| 59 | 57 |
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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.sitecode = util.getOption("sitecode");
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this.sep = util.getOption("accNumSeparator");
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this.conn = conn; |
| 64 | 61 |
|
| 65 | 62 |
} |
| ... | ... | |
| 76 | 73 |
|
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// get a new Accession# |
| 78 | 75 |
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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String sitecode = getSitecode(); |
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String uniqueid = getUniqueID(); |
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return sitecode + sep + uniqueid; |
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|
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// Accession# is not used; return it |
| 84 | 82 |
} else if ( !accNumberUsed(accNumber) ) {
|
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return accNumber; |
| ... | ... | |
| 118 | 116 |
AccessionNumberException("Fatal Error in accession number generation.");
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} |
| 120 | 118 |
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// get local server name
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private String getSidecode()
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// get local sitecode
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private String getSitecode()
|
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{
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return this.server;
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return this.sitecode;
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| 125 | 123 |
} |
| 126 | 124 |
|
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// get today date from db connection
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private String getSysdate () throws SQLException
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// get Unique ID from DB sequence
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private String getUniqueID () throws SQLException
|
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{
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String sysdate;
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String uniqueid;
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| 131 | 129 |
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try {
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PreparedStatement pstmt; |
| 134 | 132 |
pstmt = conn.prepareStatement |
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("SELECT to_char(sysdate,'mmddyyyyhhmiss') FROM dual");
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("SELECT accnum_uniqueid_seq.nextval FROM dual");
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pstmt.execute(); |
| 137 | 135 |
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ResultSet rs = pstmt.getResultSet(); |
| 139 | 137 |
boolean hasRow = rs.next(); |
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sysdate= rs.getString(1);
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uniqueid = rs.getString(1);
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pstmt.close(); |
| 142 | 140 |
|
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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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SQLException("Error on AccessionNumber.getUniqueID(): "+e.getMessage());
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} |
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return sysdate;
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return uniqueid;
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} |
| 150 | 148 |
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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 |
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* register it into db connection. If no Accession Number is |
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* provided, generate one from the database and return it. |
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* |
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* @param accNumber - Accession # if provided or null if not |
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* @param action - INSERT, UPDATE or DELETE. |
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* When "INSERT" and accession # provided is not unique, get new one. |
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* If it is unique, use it. |
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* When "INSERT" and accession # is null, get a new one. |
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* When "UPDATE", accession # is required and it is checked for existance. |
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* When "DELETE", accession # is required and it is checked for existance. |
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*/ |
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public String gen (String accNumber, String action) |
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throws AccessionNumberException, SQLException {
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String globalName = null; |
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String localId = null; |
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try {
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conn.setAutoCommit(true); |
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// split the acc # in 2 parts - global name & local id |
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if ( accNumber != null ) {
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globalName = getGlobalName(accNumber, sep); |
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localId = getLocalId(accNumber, sep); |
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} |
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// INSERT |
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if ( action.equals("INSERT")) {
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// get a unique Acc# |
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if ( accNumber == null ) {
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return put(defaultGlobalName, null, sep); |
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// Acc# is not used; return it |
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} else if ( !accNumberUsed(accNumber) ) {
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return put(globalName, localId, sep); |
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// Acc# is used; throw an exception to prevent the insertion |
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} else {
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throw |
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new AccessionNumberException("Accession number 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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// Acc# 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 " +
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"required.")); |
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// Acc# 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("Document " +
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"not found for accession #: " + accNumber)); |
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// Acc# is current; 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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//conn.close(); |
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} catch (StringIndexOutOfBoundsException siobe) {
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MetaCatUtil.debugMessage( |
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"Error on AccessionNumber.generate(): " + |
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siobe.getMessage()); |
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throw (new AccessionNumberException("Accession number invalid, " +
|
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"expecting character \'" + sep + "'.")); |
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} catch (SQLException e) {
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throw new SQLException( |
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"Error on AccessionNumber.generate(accNumber, action): " + |
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e.getMessage()); |
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} |
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throw (new AccessionNumberException("Fatal Error in " +
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"accession number generation")); |
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} |
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|
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/** put unique accession # into db connection */ |
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private String put (String globalName, String localId, String sep) |
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throws SQLException |
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{
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|
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Integer l = null; |
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try {
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if ( localId == null ) |
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l = new Integer(get(globalName) + 1); |
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//else if ( accNumberUsed(globalName, localId) ) |
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// l = new Integer(get(globalName) + 1); |
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else |
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l = new Integer(localId); |
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|
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// insert globalName & l |
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PreparedStatement pstmt; |
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pstmt = conn.prepareStatement( |
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"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,l.toString()); |
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pstmt.execute(); |
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pstmt.close(); |
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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.put(globalName, localId, sep): " |
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+ e.getMessage()); |
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} |
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return globalName + sep + l; |
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} |
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|
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/** check for existence of Accesssion Number xml_acc_numbers table */ |
| 265 | 150 |
public boolean accNumberUsed ( String accNumber ) |
| 266 | 151 |
throws SQLException {
|
| ... | ... | |
| 315 | 200 |
return hasCurrentAccNumber; |
| 316 | 201 |
} |
| 317 | 202 |
|
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/** get the last in order local ID by a given global name */ |
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private int get (String globalName) throws SQLException {
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|
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try {
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PreparedStatement pstmt; |
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pstmt = conn.prepareStatement( |
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"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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|
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if (hasLocalId) {
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return rs.getInt(1); |
|
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} |
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|
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pstmt.close(); |
|
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} catch (SQLException e) {
|
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throw new SQLException( |
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"Error on AccessionNumber.get(globalName): " + e.getMessage()); |
|
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} |
|
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|
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return 0; |
|
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} |
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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, String sep) |
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throws StringIndexOutOfBoundsException {
|
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|
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return accNumber.substring(0, accNumber.lastIndexOf(sep)); |
|
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} |
|
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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, String sep) |
|
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throws StringIndexOutOfBoundsException {
|
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|
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return accNumber.substring(accNumber.lastIndexOf(sep)+1); |
|
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} |
|
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} |
| 359 | 204 |
|
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/** |
| 361 | 206 |
* '$Log$ |
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* 'Revision 1.16 2000/12/06 17:59:03 berkley |
|
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* 'made replication on insert or update us. Also made a method in AccessionNumber public so that you can tell if an accession number has already been used.e place be |
|
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* ' |
|
| 362 | 210 |
* 'Revision 1.15 2000/11/30 22:41:32 bojilova |
| 363 | 211 |
* 'change the generation of Accession# in the form of <sidecode>.<createdate> |
| 364 | 212 |
* ' |
Also available in: Unified diff
changed acc# generation to use db sequence instead of timestamp