/*
* Copyright (c) 2010 Lockheed Martin Corporation
*
* Licensed 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.eurekastreams.server.service.servlets;
import org.apache.commons.lang.StringUtils;
import org.eurekastreams.server.persistence.mappers.cache.Transformer;
/**
* Transformer to parse theme uuid from request uri. Expecting to handle format of
* /blah/whatever/somethemeversion<UUID_SEPARATOR>themuuid<FILE_EXTENSION>
*
*/
public class RequestUriToThemeUuidTransformer implements Transformer<String, String>
{
/**
* Uuid separator in css filename.
*/
private final String uuidSeparator;
/**
* File name extension.
*/
private final String fileExtension;
/**
* Constructor.
*
* @param inUuidSeparator
* Uuid separator in css filename.
* @param inFileExtension
* File name extension.
*/
public RequestUriToThemeUuidTransformer(final String inUuidSeparator, final String inFileExtension)
{
uuidSeparator = inUuidSeparator;
fileExtension = inFileExtension;
}
/**
* Parse theme uuid from request uri. Expecting to handle format of
* /blah/whatever/somethemeversion<UUID_SEPARATOR>themuuid<FILE_EXTENSION>
*
* @param inTransformType
* Request uri.
* @return lower case theme uuid from request uri.
*/
@Override
public String transform(final String inTransformType)
{
return inTransformType == null ? null : StringUtils.removeEndIgnoreCase(
StringUtils.substringAfterLast(inTransformType, uuidSeparator), fileExtension).toLowerCase();
}
}