Mercurial > hg > release > thermostat-1.2
view storage/core/src/main/java/com/redhat/thermostat/storage/core/HostLatestPojoListGetter.java @ 1660:c6ae78b6f3ac
[Thermostat 1.2] Update copyright year to 2015
Reviewed-by: omajid
Review-thread: http://icedtea.classpath.org/pipermail/thermostat/2015-March/013127.html
PR2273
author | Severin Gehwolf <sgehwolf@redhat.com> |
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date | Wed, 11 Mar 2015 15:07:27 +0100 |
parents | a036c40713da |
children |
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/* * Copyright 2012-2015 Red Hat, Inc. * * This file is part of Thermostat. * * Thermostat is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published * by the Free Software Foundation; either version 2, or (at your * option) any later version. * * Thermostat is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Thermostat; see the file COPYING. If not see * <http://www.gnu.org/licenses/>. * * Linking this code with other modules is making a combined work * based on this code. Thus, the terms and conditions of the GNU * General Public License cover the whole combination. * * As a special exception, the copyright holders of this code give * you permission to link this code with independent modules to * produce an executable, regardless of the license terms of these * independent modules, and to copy and distribute the resulting * executable under terms of your choice, provided that you also * meet, for each linked independent module, the terms and conditions * of the license of that module. An independent module is a module * which is not derived from or based on this code. If you modify * this code, you may extend this exception to your version of the * library, but you are not obligated to do so. If you do not wish * to do so, delete this exception statement from your version. */ package com.redhat.thermostat.storage.core; import java.util.List; import java.util.logging.Level; import java.util.logging.Logger; import com.redhat.thermostat.common.utils.LoggingUtils; import com.redhat.thermostat.storage.model.TimeStampedPojo; /** * @see HostTimeIntervalPojoListGetter */ public class HostLatestPojoListGetter<T extends TimeStampedPojo> extends AbstractGetter<T> { public static final String HOST_LATEST_QUERY_FORMAT = "QUERY %s WHERE '" + Key.AGENT_ID.getName() + "' = ?s AND '" + Key.TIMESTAMP.getName() + "' > ?l SORT '" + Key.TIMESTAMP.getName() + "' DSC"; private static final Logger logger = LoggingUtils.getLogger(HostLatestPojoListGetter.class); private final Storage storage; private final Category<T> cat; private final String queryLatest; public HostLatestPojoListGetter(Storage storage, Category<T> cat) { this.storage = storage; this.cat = cat; this.queryLatest = String.format(HOST_LATEST_QUERY_FORMAT, cat.getName()); } public List<T> getLatest(HostRef hostRef, long since) { PreparedStatement<T> query = buildQuery(hostRef, since); return getLatestOrEmpty(query); } PreparedStatement<T> buildQuery(HostRef hostRef, long since) { StatementDescriptor<T> desc = new StatementDescriptor<>(cat, queryLatest); PreparedStatement<T> stmt = null; try { stmt = storage.prepareStatement(desc); stmt.setString(0, hostRef.getAgentId()); stmt.setLong(1, since); } catch (DescriptorParsingException e) { // should not happen, but if it *does* happen, at least log it logger.log(Level.SEVERE, "Preparing query '" + desc + "' failed!", e); } return stmt; } // package private for testing String getQueryLatestDesc() { return queryLatest; } }