Java Code Examples for org.dom4j.io.OutputFormat#setIndent()

public String toXML(boolean pretty) {
	ByteArrayOutputStream baos = new ByteArrayOutputStream();
	try {
		OutputFormat format = new OutputFormat();
		format.setEncoding(StandardCharsets.UTF_8.name());
		if (pretty) {
			format.setIndent(true);
			format.setIndentSize(4);
	        format.setNewlines(true);
		} else {
	        format.setIndent(false);
	        format.setNewlines(false);
		}
		new XMLWriter(baos, format).write(getWrapped());
		return baos.toString(StandardCharsets.UTF_8.name());
	} catch (Exception e) {
		throw ExceptionUtils.unchecked(e);
	}
}
 

public static boolean writeToXML(Document document, String tempPath) {
	try {
		// 使用XMLWriter写入，可以控制格式，经过调试，发现这种方式会出现乱码，主要是因为Eclipse中xml文件和JFrame中文件编码不一致造成的
		OutputFormat format = OutputFormat.createPrettyPrint();
		format.setEncoding(EncodingUtil.CHARSET_UTF8);
		// format.setSuppressDeclaration(true);//这句话会压制xml文件的声明，如果为true，就不打印出声明语句
		format.setIndent(true);// 设置缩进
		format.setIndent("	");// 空行方式缩进
		format.setNewlines(true);// 设置换行
		XMLWriter writer = new XMLWriter(new FileWriterWithEncoding(new File(tempPath), EncodingUtil.CHARSET_UTF8), format);
		writer.write(document);
		writer.close();
	} catch (IOException e) {
		e.printStackTrace();
		MyLogger.logger.error("写入xml文件出错！");
		return false;
	}
	return true;
}
 

public static String serialize(final Document document) {
    try (StringWriter out = new StringWriter()) {
        final OutputFormat format = new OutputFormat(null, false, "UTF-8");
        format.setExpandEmptyElements(false);
        format.setIndent(false);

        final XMLWriter writer = new XMLWriter(out, format);
        writer.write(document);
        writer.flush();

        return out.toString();
    } catch (final IOException e) {
        throw new IllegalStateException("Unable to serialize given document to XML", e);
    }
}
 

public static void main(String args[]){

		Namespace rootNs = new Namespace("", "uri:oozie:workflow:0.4"); // root namespace uri
		QName rootQName = QName.get("workflow-app", rootNs); // your root element's name
		Element workflow = DocumentHelper.createElement(rootQName);
		Document doc = DocumentHelper.createDocument(workflow);
		
		workflow.addAttribute("name", "test");
		Element test = workflow.addElement("test");
		test.addText("hello");
				OutputFormat outputFormat = OutputFormat.createPrettyPrint();
				outputFormat.setEncoding("UTF-8");
				outputFormat.setIndent(true); 
				outputFormat.setIndent("    "); 
				outputFormat.setNewlines(true); 
		try {
			StringWriter stringWriter = new StringWriter();
			XMLWriter xmlWriter = new XMLWriter(stringWriter);
			xmlWriter.write(doc);
			xmlWriter.close();
			System.out.println( doc.asXML() );
			System.out.println( stringWriter.toString().trim());

		} catch (Exception ex) {
			ex.printStackTrace();
		}
	}
 

public static void toXml(Writer out, Document doc) throws IOException {
	OutputFormat outformat = OutputFormat.createPrettyPrint();
	outformat.setIndentSize(1);
	outformat.setIndent("\t");
	outformat.setEncoding(UTF_8.name());
	XMLWriter writer = new XMLWriter(out, outformat);
	writer.write(doc);
	writer.flush();
	out.flush();
	out.close();
}
 

/**
 * Transform the Graph into an workflow xml definition
 * @param jobname the job name of Oozie job, can't be null
 * @return workflow xml
 */
public String toWorkflow(String jobname) {
	Namespace xmlns = new Namespace("", "uri:oozie:workflow:0.4"); // root namespace uri
	QName qName = QName.get("workflow-app", xmlns); // your root element's name
	Element workflow = DocumentHelper.createElement(qName);
	Document xmldoc = DocumentHelper.createDocument(workflow);
	// Create workflow root
	workflow.addAttribute("xmlns", "uri:oozie:workflow:0.4");
	// <workflow-app name='xxx'></workflow-app>
	if (jobname == null || "".equals(jobname))
		workflow.addAttribute("name", "Not specified");
	else
		workflow.addAttribute("name", jobname);

	Queue<NodeDef> que = new LinkedList<NodeDef>();
	que.add(start);

	while (!que.isEmpty()) {
		NodeDef cur = que.remove();

		cur.append2XML(workflow);

		for (NodeDef toNode : cur.getOutNodes()) {
			toNode.delInNode(cur);
			if (toNode.getInDegree() == 0)
				que.add(toNode);
		}
	}

	// Set XML document format
	OutputFormat outputFormat = OutputFormat.createPrettyPrint();
	// Set XML encoding, use the specified encoding to save the XML document to the string, it can be specified GBK or ISO8859-1
	outputFormat.setEncoding("UTF-8");
	outputFormat.setSuppressDeclaration(true); // Whether generate xml header
	outputFormat.setIndent(true); // Whether set indentation
	outputFormat.setIndent("    "); // Implement indentation with four spaces
	outputFormat.setNewlines(true); // Set whether to wrap

	try {
		// stringWriter is used to save xml document
		StringWriter stringWriter = new StringWriter();
		// xmlWriter is used to write XML document to string(tool)
		XMLWriter xmlWriter = new XMLWriter(stringWriter, outputFormat);
		
		// Write the created XML document into the string
		xmlWriter.write(xmldoc);

		xmlWriter.close();

		System.out.println( stringWriter.toString().trim());
		// Print the string, that is, the XML document
		return stringWriter.toString().trim();

	} catch (Exception ex) {
		ex.printStackTrace();
	}
	return null;
}
 

public static void parseXML(String filePath) {
	// InputStream is = null;
	// try {
	// is = new InputStreamReader(new FileInputStream(new File(filePath)));
	// } catch (FileNotFoundException e1) {
	// e1.printStackTrace();
	// MyLogger.logger.error(e1.getMessage());
	// }
	SAXReader saxReader = new SAXReader();
	Document document = null;
	try {
		document = saxReader.read(new BufferedReader(new InputStreamReader(new FileInputStream(new File(filePath)),
				EncodingUtil.CHARSET_UTF8)));
	} catch (DocumentException | UnsupportedEncodingException | FileNotFoundException e1) {
		e1.printStackTrace();
		MyLogger.logger.error(e1.getMessage());
	}
	// Element rootElement = document.getRootElement();
	// System.out.println("根节点名称：" + rootElement.getName());
	// System.out.println("根节点的属性个数：" + rootElement.attributeCount());
	// System.out.println("根节点id属性的值：" + rootElement.attributeValue("id"));
	// System.out.println("根节点内文本：" + rootElement.getText());
	// System.out.println("根节点内去掉换行tab键等字符：" + rootElement.getTextTrim());
	// System.out.println("根节点子节点文本内容：" + rootElement.getStringValue());

	// Element content = rootElement.element("Content");
	// Element paragraph = content.element("Paragraph");
	// Element sentence = paragraph.element("Sentence");

	// Element event = sentence.element("Event");
	// Element event = paragraph.element("Event");
	@SuppressWarnings("unchecked")
	List<Element> event_list = document.selectNodes("//Sentence/Event");
	@SuppressWarnings("unchecked")
	List<Element> denoter_list = document.selectNodes("//Sentence/Event/Denoter");
	Iterator<Element> denoterIter = denoter_list.iterator();
	Iterator<Element> eventIter = event_list.iterator();
	// Element para = doc.element("para");
	// Element sent = para.element("sent");
	while (denoterIter.hasNext()) {
		Element denoter = denoterIter.next();
		Element event = eventIter.next();
		String denoterValue = denoter.getTextTrim();
		for (int i = 0; i < treeSetsList.size(); i++) {
			if (treeSetsList.get(i).contains(denoterValue)) {
				String typeValue = type_value.get(i);// 获取denoter的type值
				if (0 == i) {
					// 说明是意念事件，那么这时候拿到的typeValue是Event的属性值
					event.addAttribute("type", typeValue);
					denoter.addAttribute("type", "statement");// 默认意念事件触发词的类型都是statement
					// 注意如果是意念事件的话，event的type是thoughtEvent，denoter的属性是statement
					// 只要发现了一个意念事件，那个根据原则，就应该将意念事件的关系加到文档末尾
					document.getRootElement().addElement(Annotation.THOUGHTEVENT_RELATION);
				} else {
					// 为event添加属性和值
					denoter.addAttribute("type", typeValue);
				}
			}
		}
	}
	// 这部分用来实现判断Time是不是绝对时间
	@SuppressWarnings("unchecked")
	List<Element> time_list = document.selectNodes("//Sentence/Event/Time");
	Iterator<Element> timeIter = time_list.iterator();
	while (timeIter.hasNext()) {
		Element time = timeIter.next();
		String timeValue = time.getTextTrim();
		if (isAbsTime(timeValue)) {
			time.addAttribute("type", "absTime");
		}
	}

	try {
		// 使用XMLWriter写入，可以控制格式，经过调试，发现这种方式会出现乱码，主要是因为Eclipse中xml文件和JFrame中文件编码不一致造成的
		OutputFormat format = OutputFormat.createPrettyPrint();
		format.setEncoding(EncodingUtil.CHARSET_UTF8);
		// format.setSuppressDeclaration(true);//这句话会压制xml文件的声明，如果为true，就不打印出声明语句
		format.setIndent(true);// 设置缩进
		format.setIndent("	");// 空行方式缩进
		format.setNewlines(true);// 设置换行

		XMLWriter writer = new XMLWriter(new FileWriterWithEncoding(new File(filePath), EncodingUtil.CHARSET_UTF8), format);
		writer.write(document);
		writer.close();
		// 使用common的Util包写入
		// FileWriterWithEncoding out = new FileWriterWithEncoding(new File(filePath), "UTF-8");
		// document.write(out);
		// out.flush();
		// out.close();
	} catch (IOException e) {
		e.printStackTrace();
	}
}