D-Net

package eu.dnetlib;

import java.io.StringReader;

import java.io.StringWriter;

import java.io.UnsupportedEncodingException;

import java.net.URLEncoder;

import java.time.Instant;

import java.time.LocalDateTime;

import java.time.ZoneId;

import java.time.format.DateTimeFormatter;

import javax.xml.transform.TransformerFactory;

import eu.dnetlib.miscutils.functional.xml.ApplyXslt;

import org.dom4j.Document;

import org.dom4j.DocumentException;

import org.dom4j.io.SAXReader;

import org.junit.Test;

import org.w3c.dom.Node;

import org.w3c.dom.NodeList;

import static org.junit.Assert.assertEquals;

/**

 * Unit test for simple App.

 */

public class AppTest {

	private TransformerFactory tf = TransformerFactory.newInstance();

	@Test

	public void testXslt() {

		final String res = new ApplyXslt(getXslt(), tf).apply(getXml());

		System.out.println("******************");

		System.out.println(res);

		System.out.println("******************");

	}

	@Test

	public void testXpath() throws DocumentException {

		final SAXReader reader = new SAXReader();

		final Document doc = reader.read(new StringReader("<a><b>test</b></a>"));

		assertEquals("", doc.valueOf("//c"));

		assertEquals("test", doc.valueOf("//b"));

	}

	public static String javaMethod(final NodeList list) {

		System.out.println("******************");

		System.out.println("TYPE   : " + list.toString());

		System.out.println("LENGTH : " + list.getLength());

		for (int i = 0; i < list.getLength(); i++) {

			final Node node = list.item(i);

			System.out.println("ELEM " + i + ": " + node.getLocalName());

		}

		System.out.println("******************");

		return "ACUS";

	}

	private String getXml() {

		final StringWriter sw = new StringWriter();

		sw.append("<?xml version='1.0' encoding='UTF-8'?>\n");

		sw.append("<record>\n");

		sw.append("<metadata>\n");

		sw.append("<a>A text value</a>\n");

		sw.append("<b attr='attribute value'/>\n");

		sw.append("</metadata>\n");

		sw.append("</record>\n");

		return sw.toString();

	}

	private String getXslt() {

		final StringWriter sw = new StringWriter();

		sw.append("<?xml version='1.0' encoding='UTF-8'?>\n");

		sw.append(

				"<xsl:stylesheet version='1.0' xmlns:xsl='http://www.w3.org/1999/XSL/Transform' xmlns:dnet='eu.dnetlib.AppTest' exclude-result-prefixes='xsl dnet'>\n");

		sw.append("<xsl:output omit-xml-declaration='yes' indent='yes'/>\n");

		sw.append("<xsl:template match='/*'>\n");

		sw.append("<xsl:variable name='metadata' select=\"//*[local-name()='metadata']/*\" />\n");

		sw.append("<ROWS>\n");

		sw.append("<xsl:value-of select='dnet:javaMethod($metadata)'/>\n");

		sw.append("</ROWS>\n");

		sw.append("</xsl:template>\n");

		sw.append("</xsl:stylesheet>\n");

		return sw.toString();

	}

	@Test

	public void encodetest() throws UnsupportedEncodingException {

		final String theUrl = "http://europepmc.org/GrantLookup/grants.php?&f%5B%5D=WT&range=all&format=xml&output=export";

		final String encoded = URLEncoder.encode(theUrl, "UTF-8");

		System.out.println(encoded);

	}

	@Test

	public void testDate(){

		LocalDateTime zdt = LocalDateTime.ofInstant(Instant.now(), ZoneId.of("Etc/UTC"));

		zdt = zdt.minusHours(6);

		String x =  DateTimeFormatter.ofPattern("yyyy-MM-dd").format(zdt);

		System.out.println(x);

	}

}