| /* |
| * 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.karaf.webconsole.osgi.log; |
| |
| import java.util.Enumeration; |
| import java.util.Iterator; |
| import java.util.LinkedList; |
| import java.util.List; |
| |
| import org.apache.karaf.webconsole.osgi.log.search.Matcher; |
| import org.apache.wicket.extensions.markup.html.repeater.util.SortableDataProvider; |
| import org.apache.wicket.model.IModel; |
| import org.osgi.service.log.LogEntry; |
| import org.osgi.service.log.LogReaderService; |
| |
| /** |
| * Data provider for log table. |
| */ |
| final class LogEntriesDataProvider extends SortableDataProvider<LogEntry> { |
| |
| private static final long serialVersionUID = 1L; |
| |
| private LogReaderService logReader; |
| |
| private List<LogEntry> entries; |
| |
| private Options options; |
| |
| private List<Matcher> matchers; |
| |
| public LogEntriesDataProvider(LogReaderService logReader, Options options, List<Matcher> matchers) { |
| this.logReader = logReader; |
| this.options = options; |
| this.matchers = matchers; |
| } |
| |
| public Iterator<? extends LogEntry> iterator(int first, int count) { |
| return getEntries().subList(first, first + count).iterator(); |
| } |
| |
| private List<LogEntry> getEntries() { |
| if (entries == null) { |
| entries = new LinkedList<LogEntry>(); |
| @SuppressWarnings("unchecked") |
| Enumeration<LogEntry> logEntries = logReader.getLog(); |
| while (logEntries.hasMoreElements()) { |
| LogEntry entry = logEntries.nextElement(); |
| |
| boolean matchesAll = true; |
| for (Matcher matcher : matchers) { |
| if (!matcher.matches(entry, options)) { |
| matchesAll = false; |
| break; |
| } |
| } |
| |
| if (matchesAll) entries.add(entry); |
| } |
| } |
| return entries; |
| } |
| |
| public IModel<LogEntry> model(LogEntry object) { |
| return new LogEntryModel(this.logReader, object); |
| } |
| |
| public int size() { |
| return getEntries().size(); |
| } |
| |
| public void setOptions(Options options) { |
| this.options = options; |
| } |
| |
| @Override |
| public void detach() { |
| entries = null; |
| } |
| } |