org.apache.wicket.request.mapper.info.PageComponentInfo Maven / Gradle / Ivy
/*
* 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.wicket.request.mapper.info;
import org.apache.wicket.util.lang.Args;
import org.apache.wicket.util.string.Strings;
/**
* Encapsulates both page and component info. Rendered in form of
* <pageInfo>-<componentInfo>
*
* @author Matej Knopp
*/
public class PageComponentInfo
{
private static final char SEPARATOR = '-';
private final PageInfo pageInfo;
private final ComponentInfo componentInfo;
/**
* Construct.
*
* @param pageInfo
* @param componentInfo
*/
public PageComponentInfo(final PageInfo pageInfo, final ComponentInfo componentInfo)
{
Args.notNull(pageInfo, "pageInfo");
this.pageInfo = pageInfo;
this.componentInfo = componentInfo;
}
/**
* @return page info instance
*/
public PageInfo getPageInfo()
{
return pageInfo;
}
/**
* @return component info instance or null
*/
public ComponentInfo getComponentInfo()
{
return componentInfo;
}
/**
* @see java.lang.Object#toString()
*/
@Override
public String toString()
{
StringBuilder result = new StringBuilder();
if (pageInfo != null)
{
result.append(pageInfo.toString());
}
if (componentInfo != null)
{
result.append(SEPARATOR);
result.append(componentInfo);
}
return result.toString();
}
/**
* Parses the given string
*
* @param s
* @return {@link PageComponentInfo} or null
if the string is not in valid format.
*/
public static PageComponentInfo parse(final String s)
{
if (Strings.isEmpty(s))
{
return null;
}
final PageInfo pageInfo;
final ComponentInfo componentInfo;
int i = s.indexOf(SEPARATOR);
if (i == -1)
{
pageInfo = PageInfo.parse(s);
componentInfo = null;
}
else
{
pageInfo = PageInfo.parse(s.substring(0, i));
componentInfo = ComponentInfo.parse(s.substring(i + 1));
}
if (pageInfo == null)
{
return null;
}
return new PageComponentInfo(pageInfo, componentInfo);
}
}