Java tutorial
/* * Copyright 2012 Carnegie Mellon University * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package edu.cmu.lti.oaqa.framework.log.impl; import java.sql.PreparedStatement; import java.sql.SQLException; import java.util.Date; import java.util.List; import org.springframework.jdbc.core.PreparedStatementSetter; import com.google.common.collect.Lists; import edu.cmu.lti.oaqa.ecd.impl.AbstractLogPersistenceProvider; import edu.cmu.lti.oaqa.ecd.log.LogEntry; import edu.cmu.lti.oaqa.ecd.phase.Trace; import edu.cmu.lti.oaqa.framework.DataStoreImpl; public class JdbcLogPersistenceProvider extends AbstractLogPersistenceProvider { @Override public void log(final String uuid, final Trace trace, final LogEntry type, final String message) { System.out.printf("[logger] %s,%s,%s,%s,%s\n", new Date(), uuid, trace, type, message); String insert = (String) getParameterValue("insert-log-entry-query"); DataStoreImpl.getInstance().jdbcTemplate().update(insert, new PreparedStatementSetter() { @Override public void setValues(PreparedStatement ps) throws SQLException { ps.setString(1, uuid); ps.setString(2, trace.getTraceHash()); ps.setString(3, type.toString()); ps.setString(4, message); } }); } public List<String> getLogEntries(final String uuid, final Trace trace, final LogEntry type) { String query = getSelectLogEntriesQuery(trace, type); List<String> params = Lists.newArrayList(uuid); if (trace != null) { params.add(trace.getTraceHash()); } if (type != null) { params.add(type.toString()); } return DataStoreImpl.getInstance().jdbcTemplate().queryForList(query, String.class, params.toArray()); } private String getSelectLogEntriesQuery(Trace trace, LogEntry type) { StringBuilder query = new StringBuilder(); query.append((String) getParameterValue("select-log-entries-query")); if (trace != null) { query.append((String) getParameterValue("select-log-entries-trace-clause")); } if (type != null) { query.append((String) getParameterValue("select-log-entries-type-clause")); } return query.toString(); } }