| /* |
| * ==================================================================== |
| * 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.poi.sl.draw.geom; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.Map; |
| import java.util.Objects; |
| import java.util.Set; |
| import java.util.TreeMap; |
| |
| import javax.xml.stream.XMLInputFactory; |
| import javax.xml.stream.XMLStreamException; |
| import javax.xml.stream.XMLStreamReader; |
| import javax.xml.transform.stream.StreamSource; |
| |
| import org.apache.logging.log4j.LogManager; |
| import org.apache.logging.log4j.Logger; |
| import org.apache.poi.util.XMLHelper; |
| |
| public final class PresetGeometries { |
| private static final Logger LOG = LogManager.getLogger(PresetGeometries.class); |
| |
| private final Map<String, CustomGeometry> map = new TreeMap<>(); |
| |
| private static class SingletonHelper{ |
| private static final PresetGeometries INSTANCE = new PresetGeometries(); |
| } |
| |
| public static PresetGeometries getInstance(){ |
| return SingletonHelper.INSTANCE; |
| } |
| |
| private PresetGeometries() { |
| // use a local object first to not assign a partly constructed object in case of failure |
| try { |
| try (InputStream is = PresetGeometries.class.getResourceAsStream("presetShapeDefinitions.xml")) { |
| XMLInputFactory staxFactory = XMLHelper.newXMLInputFactory(); |
| XMLStreamReader sr = staxFactory.createXMLStreamReader(new StreamSource(is)); |
| try { |
| PresetParser p = new PresetParser(PresetParser.Mode.FILE); |
| p.parse(sr); |
| p.getGeom().forEach(map::put); |
| } finally { |
| sr.close(); |
| } |
| } |
| } catch (IOException | XMLStreamException e){ |
| throw new RuntimeException(e); |
| } |
| } |
| |
| /** |
| * Convert a single CustomGeometry object, i.e. from xmlbeans |
| */ |
| public static CustomGeometry convertCustomGeometry(XMLStreamReader staxReader) { |
| try { |
| PresetParser p = new PresetParser(PresetParser.Mode.SHAPE); |
| p.parse(staxReader); |
| return p.getGeom().values().stream().findFirst().orElse(null); |
| } catch (XMLStreamException e) { |
| LOG.atError().withThrowable(e).log("Unable to parse single custom geometry"); |
| return null; |
| } |
| } |
| |
| public CustomGeometry get(String name) { |
| return name == null ? null : map.get(name); |
| } |
| |
| public Set<String> keySet() { |
| return map.keySet(); |
| } |
| |
| public int size() { |
| return map.size(); |
| } |
| |
| @SuppressWarnings("EqualsWhichDoesntCheckParameterClass") |
| @Override |
| public boolean equals(Object o) { |
| return (this == o); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(map); |
| } |
| } |