Java tutorial
/** * Licensed to Apereo under one or more contributor license agreements. See the NOTICE file * distributed with this work for additional information regarding copyright ownership. Apereo * 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 the * following location: * * <p>http://www.apache.org/licenses/LICENSE-2.0 * * <p>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.apereo.portal.io.xml.permission; import com.google.common.base.Function; import java.util.regex.Pattern; import org.apereo.portal.utils.Tuple; import org.dom4j.Node; /** * Generates the correct file name for a Permission Set * * @author Eric Dalquist * @version $Revision$ */ public class PermissionSetsFilenameFunction implements Function<Tuple<String, Node>, String> { public static final Pattern SPLIT = Pattern.compile("\\|"); public static String[] splitKey(String key) { final String[] keyParts = SPLIT.split(key); if (keyParts.length != 5) { throw new IllegalArgumentException("PermissionSets key must have five parts"); } return keyParts; } @Override public String apply(Tuple<String, Node> data) { final String[] keyParts = splitKey(data.first); final Node node = data.second.selectSingleNode("/permission-set/principal/child::node()/child::text()"); final String principal = node.getText(); return principal + "__" + keyParts[3] + "__" + keyParts[0]; } }