| /* |
| 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.wiki.pages; |
| |
| import org.apache.wiki.api.core.Page; |
| |
| import java.io.Serializable; |
| import java.util.Date; |
| |
| |
| /** |
| * Describes a lock acquired by an user on a page. For the most part, the regular developer does not have to instantiate this class. |
| * <p> |
| * The PageLock keeps no reference to a WikiPage because otherwise it could keep a reference to a page for a long time. |
| */ |
| public class PageLock implements Serializable { |
| |
| private static final long serialVersionUID = 0L; |
| |
| private String m_page; |
| private String m_locker; |
| private Date m_lockAcquired; |
| private Date m_lockExpiry; |
| |
| /** |
| * Creates a new PageLock. The lock is not attached to any objects at this point. |
| * |
| * @param page WikiPage which is locked. |
| * @param locker The username who locked this page (for display purposes). |
| * @param acquired The timestamp when the lock is acquired |
| * @param expiry The timestamp when the lock expires. |
| */ |
| public PageLock( final Page page, final String locker, final Date acquired, final Date expiry ) { |
| m_page = page.getName(); |
| m_locker = locker; |
| m_lockAcquired = ( Date )acquired.clone(); |
| m_lockExpiry = ( Date )expiry.clone(); |
| } |
| |
| /** |
| * Returns the name of the page which is locked. |
| * |
| * @return The name of the page. |
| */ |
| public String getPage() { |
| return m_page; |
| } |
| |
| /** |
| * Returns the locker name. |
| * |
| * @return The name of the locker. |
| */ |
| public String getLocker() { |
| return m_locker; |
| } |
| |
| /** |
| * Returns the timestamp on which this lock was acquired. |
| * |
| * @return The acquisition time. |
| */ |
| public Date getAcquisitionTime() { |
| return m_lockAcquired; |
| } |
| |
| /** |
| * Returns the timestamp on which this lock will expire. |
| * |
| * @return The expiry date. |
| */ |
| public Date getExpiryTime() { |
| return m_lockExpiry; |
| } |
| |
| /** |
| * Returns the amount of time left in minutes, rounded up to the nearest minute (so you get a zero only at the last minute). |
| * |
| * @return Time left in minutes. |
| */ |
| public long getTimeLeft() { |
| final long time = m_lockExpiry.getTime() - new Date().getTime(); |
| return ( time / ( 1000L * 60 ) ) + 1; |
| } |
| |
| public boolean isExpired() { |
| final Date now = new Date(); |
| return now.after( getExpiryTime() ); |
| } |
| |
| } |