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This module contains the Metro WSIT runtime code.
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package com.sun.xml.ws.config.management.persistence;
import com.sun.istack.logging.Logger;
import com.sun.xml.ws.metro.api.config.management.NamedParameters;
import com.sun.xml.ws.metro.api.config.management.ManagedEndpoint;
import com.sun.xml.ws.metro.api.config.management.ConfigSaver;
import com.sun.xml.ws.api.config.management.policy.ManagedServiceAssertion;
import com.sun.xml.ws.api.config.management.policy.ManagedServiceAssertion.ImplementationRecord;
import com.sun.xml.ws.config.management.ManagementConstants;
import com.sun.xml.ws.config.management.ManagementMessages;
import com.sun.xml.ws.config.management.ManagementUtil;
import com.sun.xml.ws.config.management.ManagementUtil.JdbcTableNames;
import com.sun.xml.ws.policy.PolicyException;
import com.sun.xml.ws.policy.sourcemodel.attach.ExternalAttachmentsUnmarshaller;
import java.io.StringReader;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.logging.Level;
import javax.sql.DataSource;
import javax.xml.ws.WebServiceException;
/**
* Default implementation that persists the new configuration data with JDBC.
*
* @param The endpoint implementation class type.
* @author Fabian Ritzmann
*/
public class JDBCConfigSaver implements ConfigSaver {
private static final Logger LOGGER = Logger.getLogger(JDBCConfigSaver.class);
private ManagedEndpoint endpoint;
private ManagedServiceAssertion assertion;
public void init(ManagedEndpoint endpoint, ManagedServiceAssertion assertion) {
this.endpoint = endpoint;
this.assertion = assertion;
}
/**
* Persist the data.
*
* @param parameters The parameters must contain the ManagedEndpoint instance
* and the data to be persisted.
*/
public void persist(final NamedParameters parameters) {
final String newConfig = parameters.get(ManagementConstants.CONFIGURATION_DATA_PARAMETER_NAME);
validate(newConfig);
Connection connection = null;
DataSource source = null;
try {
final ImplementationRecord record = this.assertion.getConfigSaverImplementation();
source = ManagementUtil.getJdbcDataSource(record, JDBCConfigSaver.class.getName());
connection = source.getConnection();
final JdbcTableNames tableNames = ManagementUtil.getJdbcTableNames(
record, JDBCConfigSaver.class.getName());
writeData(connection, tableNames, this.endpoint.getId(), newConfig);
} catch (SQLException e) {
throw LOGGER.logSevereException(new WebServiceException(
ManagementMessages.WSM_5021_NO_DB_CONNECT(source), e));
} finally {
try {
if (connection != null) {
connection.close();
}
} catch (SQLException e) {
LOGGER.warning(ManagementMessages.WSM_5022_NO_DB_CLOSE(connection), e);
}
}
}
/**
* The best way to ensure that the configuration data is valid is to do a
* full parse before we are writing it to the database. This may cost a
* little performance but since the reconfiguration is happening asynchronously,
* it allows to give immediate feedback.
*
* @param configData The new policies.
* @throws WebServiceException If parsing the policies failed.
*/
private static void validate(final String configData) throws WebServiceException {
try {
ExternalAttachmentsUnmarshaller.unmarshal(new StringReader(configData));
} catch (PolicyException e) {
throw LOGGER.logSevereException(new WebServiceException(
ManagementMessages.WSM_5097_FAILED_CONFIG_PARSE(), e));
}
}
private static void writeData(final Connection connection,
final JdbcTableNames tableNames, final String endpointId, final String config) {
PreparedStatement updateStatement = null;
PreparedStatement insertStatement = null;
try {
final String update = "UPDATE " + tableNames.getTableName() + " SET " +
tableNames.getVersionName() + " = " + tableNames.getVersionName() +
" + 1, " + tableNames.getConfigName() + " = ? WHERE id = ?";
updateStatement = connection.prepareStatement(update);
updateStatement.setCharacterStream(1, new StringReader(config), config.length());
updateStatement.setString(2, endpointId);
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine(ManagementMessages.WSM_5023_EXECUTE_SQL(update));
}
final int rowCount = updateStatement.executeUpdate();
if (rowCount == 0) {
final String insert = "INSERT INTO " + tableNames.getTableName() +
" (" + tableNames.getIdName() + ", " + tableNames.getVersionName() +
", " + tableNames.getConfigName() + ") VALUES (?, 1, ?)";
insertStatement = connection.prepareStatement(insert);
insertStatement.setString(1, endpointId);
insertStatement.setCharacterStream(2, new StringReader(config), config.length());
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine(ManagementMessages.WSM_5024_EXECUTE_SQL_UPDATE(insert));
}
insertStatement.executeUpdate();
}
} catch (SQLException e) {
throw LOGGER.logSevereException(new WebServiceException(ManagementMessages.WSM_5025_SQL_FAILED(), e));
} finally {
try {
if (updateStatement != null) {
updateStatement.close();
}
} catch (SQLException e) {
LOGGER.warning(ManagementMessages.WSM_5026_FAILED_STATEMENT_CLOSE(updateStatement), e);
} finally {
try {
if (insertStatement != null) {
insertStatement.close();
}
} catch (SQLException e) {
LOGGER.warning(ManagementMessages.WSM_5026_FAILED_STATEMENT_CLOSE(insertStatement), e);
}
}
}
}
}
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