/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.synapse.aspects.statistics.view;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.synapse.SynapseException;
import org.apache.synapse.aspects.ComponentType;
import org.apache.synapse.aspects.statistics.StatisticsRecord;
import org.apache.synapse.aspects.statistics.StatisticsUpdateStrategy;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
/**
* Strategy that determine a system wide statistics view
*/
public class SystemViewStrategy implements StatisticsViewStrategy {
private static final Log log = LogFactory.getLog(SystemViewStrategy.class);
public Map<String, Map<String, InOutStatisticsView>> determineView(
List<StatisticsRecord> statisticsRecords,
ComponentType type) {
final Map<String, Map<String, InOutStatisticsView>> statisticsMap =
new HashMap<String, Map<String, InOutStatisticsView>>();
if (statisticsRecords == null) {
if (log.isDebugEnabled()) {
log.debug("Statistics records cannot be found.");
}
return statisticsMap;
}
final Map<String, InOutStatisticsView> perResourceMap =
new HashMap<String, InOutStatisticsView>();
for (StatisticsRecord record : statisticsRecords) {
if (record != null) {
final StatisticsUpdateStrategy strategy = new StatisticsUpdateStrategy(record);
final Iterator<String> logIds = record.getAllLogIds(type);
while (logIds.hasNext()) {
String id = logIds.next();
InOutStatisticsView view;
if (!perResourceMap.containsKey(id)) {
view = new InOutStatisticsView(id, Statistics.ALL, type);
perResourceMap.put(id, view);
} else {
view = perResourceMap.get(id);
}
updateStatistics(id, type, view, strategy);
}
}
}
statisticsMap.put(Statistics.ALL, perResourceMap);
return statisticsMap;
}
public Map<String, InOutStatisticsView> determineView(String id,
List<StatisticsRecord> statisticsRecords,
ComponentType type) {
if (id == null || "".equals(id)) {
handleException("Resource Id cannot be null");
}
Map<String, InOutStatisticsView> statisticsMap = new HashMap<String, InOutStatisticsView>();
if (statisticsRecords == null) {
if (log.isDebugEnabled()) {
log.debug("Statistics records cannot be found.");
}
return statisticsMap;
}
InOutStatisticsView view = new InOutStatisticsView(id, Statistics.ALL, type);
for (StatisticsRecord record : statisticsRecords) {
if (record != null) {
updateStatistics(id, type, view, new StatisticsUpdateStrategy(record));
}
}
statisticsMap.put(Statistics.ALL, view);
return statisticsMap;
}
private void updateStatistics(String id, ComponentType type, InOutStatisticsView view,
StatisticsUpdateStrategy strategy) {
if (view != null) {
strategy.updateStatistics(id, type, view);
}
}
private static void handleException(String msg) {
log.error(msg);
throw new SynapseException(msg);
}
}