public void run() {
Connection con = null;
Statement stmt = null;
try {
DataSource ds = getDataSource();
con = ds.getConnection();
if (executeOnlyIf(con, onlyIfQuery)) {
stmt = con.createStatement();
if (query != null) {
executeQuery(stmt, query);
} else if (update != null) {
executeUpdate(stmt, update);
} else {
throw new IllegalStateException("Both query and update properties are unset");
}
} else {
LOG.debug("Skipped because of " + onlyIfQuery);
}
} catch (RuntimeException e) {
throw e;
} catch (Throwable t) {
if (ignore.matcher(t.getMessage()).matches()) {
LOG.info("Ignoring " + t.getMessage());
} else {
throw new RuntimeException(t.getMessage(), t);
}
} finally {
try {
if (stmt != null) {
stmt.close();
}
} catch (Exception g) {
}
try {
if (con != null) {
con.close();
}
} catch (Exception g) {
}
}
}
public void setIgnoreException(String e) {
ignore = Pattern.compile(e);
}
/**
* Generic tool to execute some SQL
*
* @since MMBase-1.9.5
* @author Michiel Meeuwissen
* @version $Id$
*/
public class SqlExecutor implements Runnable {
private static final Logger LOG = Logging.getLoggerInstance(SqlExecutor.class);
private String query;
private String update;
private String onlyIfQuery;
private Pattern ignore = Pattern.compile("");
protected DataSource dataSource;
protected String prefix;
public void setDataSource(DataSource dataSource) {
this.dataSource = dataSource;
}
public void setPrefix(String pref) {
this.prefix = pref;
}
public DataSource getDataSource() {
return dataSource;
}
public String getPrefix() {
if (prefix == null) {
return "$PREFIX";
} else {
return prefix;
}
}
public void setIgnoreException(String e) {
ignore = Pattern.compile(e);
}
public void setQuery(String q) {
if (update != null) throw new IllegalStateException();
query = q;
}
public void setUpdate(String u) {
if (query != null) throw new IllegalStateException();
update = u;
}
/**
* A query returning either true of false. E.g. <param name="onlyIf"><![CDATA[select 1 = (select
* count(*) from mm_versions where m_type='application' and name='Limburg' and m_version <
* 7);]]></param>
*/
public void setOnlyIf(String q) {
onlyIfQuery = q;
}
protected void executeQuery(Statement stmt, String q) throws SQLException {
q = q.replace("$PREFIX", getPrefix());
LOG.info(" Executing " + q);
ResultSet rs = stmt.executeQuery(q);
StringBuilder header = new StringBuilder();
for (int i = 1; i <= rs.getMetaData().getColumnCount(); i++) {
if (i > 1) {
header.append("|");
}
header.append(rs.getMetaData().getColumnName(i));
}
LOG.info(header);
int seq = 0;
while (true) {
boolean valid = rs.next();
if (!valid) break;
seq++;
StringBuilder line = new StringBuilder();
for (int i = 1; i <= rs.getMetaData().getColumnCount(); i++) {
if (i > 1) {
line.append("|");
}
line.append(rs.getString(i));
}
LOG.info(seq + ":" + line);
}
}
protected void executeUpdate(Statement stmt, String u) throws SQLException {
u = u.replace("$PREFIX", getPrefix());
LOG.info(" Executing update " + u);
int result = stmt.executeUpdate(u);
LOG.service("Result :" + result);
}
protected boolean executeOnlyIf(Connection con, String q) throws SQLException {
if (q == null) return true;
Statement stmt = null;
try {
stmt = con.createStatement();
q = q.replace("$PREFIX", getPrefix());
LOG.debug(" Executing query " + q);
ResultSet rs = stmt.executeQuery(q);
rs.next();
boolean res = rs.getBoolean(1);
LOG.debug("Result: " + res);
return res;
} catch (SQLException sqe) {
LOG.error(sqe.getMessage() + " from " + q);
throw sqe;
} finally {
try {
if (stmt != null) {
stmt.close();
}
} catch (Exception g) {
}
}
}
public void run() {
Connection con = null;
Statement stmt = null;
try {
DataSource ds = getDataSource();
con = ds.getConnection();
if (executeOnlyIf(con, onlyIfQuery)) {
stmt = con.createStatement();
if (query != null) {
executeQuery(stmt, query);
} else if (update != null) {
executeUpdate(stmt, update);
} else {
throw new IllegalStateException("Both query and update properties are unset");
}
} else {
LOG.debug("Skipped because of " + onlyIfQuery);
}
} catch (RuntimeException e) {
throw e;
} catch (Throwable t) {
if (ignore.matcher(t.getMessage()).matches()) {
LOG.info("Ignoring " + t.getMessage());
} else {
throw new RuntimeException(t.getMessage(), t);
}
} finally {
try {
if (stmt != null) {
stmt.close();
}
} catch (Exception g) {
}
try {
if (con != null) {
con.close();
}
} catch (Exception g) {
}
}
}
@Override
public String toString() {
if (update != null) {
return update;
} else if (query != null) {
return query;
} else {
return "No query yet";
}
}
}
