svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.db / org.gvsig.fmap.dal.db.jdbc / src / main / java / org / gvsig / fmap / dal / store / jdbc2 / spi / operations / AbstractConnectionOperation.java @ 43114
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package org.gvsig.fmap.dal.store.jdbc2.spi.operations; |
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import java.sql.Connection; |
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import java.sql.SQLException; |
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import java.util.logging.Level; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.resource.ResourceAction; |
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import org.gvsig.fmap.dal.resource.spi.ResourceProvider; |
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import org.gvsig.fmap.dal.store.jdbc.exception.JDBCTransactionRollbackException; |
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import org.gvsig.fmap.dal.store.jdbc2.JDBCHelper; |
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import org.gvsig.fmap.dal.store.jdbc2.spi.JDBCSQLBuilderBase; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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public abstract class AbstractConnectionOperation implements ConnectionOperation { |
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final static protected Logger logger = LoggerFactory.getLogger(AbstractConnectionOperation.class); |
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final protected JDBCHelper helper; |
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private Connection conn = null; |
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public AbstractConnectionOperation(JDBCHelper helper) {
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this.helper = helper;
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} |
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@Override
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public boolean continueTransactionAllowed() { |
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return false; |
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} |
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@Override
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public boolean needTransaction() { |
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return true; |
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} |
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protected JDBCSQLBuilderBase createSQLBuilder() {
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return this.helper.createSQLBuilder(); |
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} |
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@Override
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public Object perform() { |
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try {
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return this.perform_operation(); |
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} catch (RuntimeException ex) { |
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throw ex;
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} catch (Exception ex) { |
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throw new RuntimeException("Can't perform operation '"+this.getClass().getSimpleName()+"'.",ex); |
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} |
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} |
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protected Connection getConnection() { |
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return this.conn; |
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} |
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public Object perform_operation() throws Exception { |
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Object result = null; |
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try {
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logger.debug("preparing execution of "+this.getClass().getSimpleName()+"."); |
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conn = helper.getConnection(); |
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// XXX OJO esta condicion NO ES FIABLE
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if (!conn.getAutoCommit()) {
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if (!continueTransactionAllowed()) {
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throw new SQLException("nested operations not allowed."); |
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} |
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} |
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conn.setAutoCommit(false);
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try {
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logger.debug("Excuting operation {}.", this.getClass().getSimpleName()); |
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result = perform(conn); |
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} catch (Exception ex) { |
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try {
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conn.rollback(); |
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} catch (Exception e1) { |
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throw new JDBCTransactionRollbackException(e1, ex); |
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} |
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throw new RuntimeException("Can't perform operation '"+this.getClass().getSimpleName()+"'.",ex); |
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} |
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conn.commit(); |
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return result;
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} finally {
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helper.closeConnection(conn); |
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conn = null;
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} |
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} |
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//
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// public Object perform2() {
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// ResourceProvider resource = this.helper.getResource();
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// Object r = resource.execute(new ResourceAction() {
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//
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// @Override
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// public Object run() throws Exception {
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// return perform_operation();
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// }
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// });
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// return r;
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// }
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} |