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 */ 019 package org.apache.wiki.tags; 020 021 import java.io.IOException; 022 023 /** 024 * Root class for different internal wiki links. Cannot be used directly, 025 * but provides basic stuff for other classes. 026 * <P> 027 * Extend from this class if you need the following attributes. 028 * 029 * <P><B>Attributes</B></P> 030 * <UL> 031 * <LI>page - Page name to refer to. Default is the current page. 032 * <li>format - Either "url" or "anchor". If "url", will provide 033 * just the URL for the link. If "anchor", will output proper HTML 034 * (<a> href="...). 035 * </UL> 036 * 037 * @since 2.0 038 */ 039 public abstract class WikiLinkTag extends WikiTagBase { 040 041 private static final long serialVersionUID = 4130732879352134867L; 042 public static final int ANCHOR = 0; 043 public static final int URL = 1; 044 045 protected String m_pageName; 046 protected int m_format = ANCHOR; 047 protected String m_template; 048 049 050 public void initTag() 051 { 052 super.initTag(); 053 m_pageName = m_template = null; 054 m_format = ANCHOR; 055 } 056 057 public void setPage( String page ) 058 { 059 m_pageName = page; 060 } 061 062 public String getPage() 063 { 064 return m_pageName; 065 } 066 067 068 public String getTemplate() 069 { 070 return m_template; 071 } 072 073 public void setTemplate( String arg ) 074 { 075 m_template = arg; 076 } 077 078 public void setFormat( String mode ) 079 { 080 if( "url".equalsIgnoreCase(mode) ) 081 { 082 m_format = URL; 083 } 084 else 085 { 086 m_format = ANCHOR; 087 } 088 } 089 090 public int doEndTag() 091 { 092 try 093 { 094 if( m_format == ANCHOR ) 095 { 096 pageContext.getOut().print("</a>"); 097 } 098 } 099 catch( IOException e ) 100 { 101 // FIXME: Should do something? 102 } 103 104 return EVAL_PAGE; 105 } 106 }