| /* |
| * 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.openjpa.lib.meta; |
| |
| import java.util.Collection; |
| import java.util.Iterator; |
| import java.util.LinkedList; |
| import java.util.Map; |
| import java.util.LinkedHashMap; |
| |
| import org.xml.sax.SAXException; |
| |
| /** |
| * Helps serialize metadata objects to package and class elements. |
| * |
| * @author Abe White |
| * @nojavadoc |
| * @see CFMetaDataParser |
| */ |
| public abstract class CFMetaDataSerializer extends XMLMetaDataSerializer { |
| |
| private String _package = null; |
| |
| /** |
| * The default package for objects being serialized. |
| */ |
| protected String getPackage() { |
| return _package; |
| } |
| |
| /** |
| * The default package for objects being serialized. |
| */ |
| protected void setPackage(String pkg) { |
| _package = pkg; |
| } |
| |
| /** |
| * Helper method to group objects by package. |
| * |
| * @return mapping of package name to a collection of objects in |
| * that package |
| */ |
| protected Map groupByPackage(Collection objs) throws SAXException { |
| Map packages = new LinkedHashMap(); |
| String packageName; |
| Collection packageObjs; |
| Object obj; |
| for (Iterator itr = objs.iterator(); itr.hasNext();) { |
| obj = itr.next(); |
| packageName = getPackage(obj); |
| packageObjs = (Collection) packages.get(packageName); |
| if (packageObjs == null) { |
| packageObjs = new LinkedList(); |
| packages.put(packageName, packageObjs); |
| } |
| packageObjs.add(obj); |
| } |
| return packages; |
| } |
| |
| /** |
| * Return the package name of the given object, or null if not in a |
| * package. Used by {@link #groupByPackage}. Returns null by default. |
| */ |
| protected String getPackage(Object obj) { |
| return null; |
| } |
| |
| /** |
| * Returns the given class name, stripping the package if it is not needed. |
| */ |
| protected String getClassName(String name) { |
| // check if in current package; make sure not in a sub-package |
| if (_package != null && name.lastIndexOf('.') == _package.length() |
| && name.startsWith(_package)) |
| return name.substring(_package.length() + 1); |
| |
| // check other known packages |
| String[] packages = CFMetaDataParser.PACKAGES; |
| for (int i = 0; i < packages.length; i++) |
| if (name.startsWith(packages[i]) |
| && name.lastIndexOf('.') == packages[i].length() - 1) |
| return name.substring(packages[i].length()); |
| return name; |
| } |
| } |