001/* 002 Licensed to the Apache Software Foundation (ASF) under one 003 or more contributor license agreements. See the NOTICE file 004 distributed with this work for additional information 005 regarding copyright ownership. The ASF licenses this file 006 to you under the Apache License, Version 2.0 (the 007 "License"); you may not use this file except in compliance 008 with the License. You may obtain a copy of the License at 009 010 http://www.apache.org/licenses/LICENSE-2.0 011 012 Unless required by applicable law or agreed to in writing, 013 software distributed under the License is distributed on an 014 "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 KIND, either express or implied. See the License for the 016 specific language governing permissions and limitations 017 under the License. 018 */ 019package org.apache.wiki.modules; 020 021import org.apache.wiki.api.Release; 022import org.apache.wiki.api.core.Engine; 023 024import java.util.Collection; 025import java.util.Iterator; 026import java.util.Set; 027import java.util.TreeSet; 028 029 030/** 031 * Superclass for all JSPWiki managers for modules (plugins, etc.). 032 */ 033public abstract class BaseModuleManager implements ModuleManager { 034 035 protected final Engine m_engine; 036 037 /** 038 * Constructs the ModuleManager. 039 * 040 * @param engine The Engine which owns this manager. 041 */ 042 public BaseModuleManager( final Engine engine ) { 043 m_engine = engine; 044 } 045 046 /** 047 * Returns true, if the given module is compatible with this version of JSPWiki. 048 * 049 * @param info The module to check 050 * @return True, if the module is compatible. 051 */ 052 @Override 053 public boolean checkCompatibility( final WikiModuleInfo info ) { 054 final String minVersion = info.getMinVersion(); 055 final String maxVersion = info.getMaxVersion(); 056 057 return Release.isNewerOrEqual( minVersion ) && Release.isOlderOrEqual( maxVersion ); 058 } 059 060 protected < T extends WikiModuleInfo > Collection< WikiModuleInfo > modules( final Iterator< T > iterator ) { 061 final Set< WikiModuleInfo > ls = new TreeSet<>(); 062 while( iterator.hasNext() ) { 063 final WikiModuleInfo wmi = iterator.next(); 064 ls.add( wmi ); 065 } 066 067 return ls; 068 } 069 070}