Java tutorial
//package com.java2s; /* * Copyright 2010-2013, CloudBees Inc. * * 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. */ import com.google.common.base.Preconditions; import org.w3c.dom.Document; import org.xml.sax.SAXException; import javax.annotation.Nonnull; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.parsers.ParserConfigurationException; import java.io.*; import java.nio.file.Files; import java.nio.file.Path; public class Main { private final static DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance(); /** * Load the given {@code path} as an XML document. * * @param path * @return the loaded XML document * @throws ParserConfigurationException * @throws IOException * @throws SAXException */ @Nonnull public static Document loadXmlDocumentFromPath(@Nonnull Path path) throws ParserConfigurationException, IOException, SAXException { Preconditions.checkArgument(Files.exists(path), "File not found %s", path); Preconditions.checkArgument(!Files.isDirectory(path), "Expected file and not directory: %s", path); DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder(); try { return documentBuilder.parse(Files.newInputStream(path)); } catch (IOException | SAXException e) { throw new IOException("Exception loading XML document " + path, e); } } }