XmlFilenameWriterTest.java

/*
 * Copyright 2013 Pascal Christoph (hbz)
 *
 * 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.
 */
package org.culturegraph.mf.xml;

import static org.junit.Assert.assertEquals;

import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;

import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;

/**
 * Extracts records from an xml file and writes single xml files into
 * filesystem. The name of the xml files are generated by extracting a value
 * using an xpath.
 *
 * @author Pascal Christoph (dr0i)
 *
 */
public class XmlFilenameWriterTest {

	@Rule
	public TemporaryFolder tempFolder = new TemporaryFolder();

	private XmlFilenameWriter xmlFilenameWriter;

	@Before
	public void createSystemUnderTest() {
		xmlFilenameWriter = new XmlFilenameWriter();
		xmlFilenameWriter.setStartIndex(0);
		xmlFilenameWriter.setEndIndex(1);
		xmlFilenameWriter.setTarget(tempFolder.getRoot().getAbsolutePath());
	}

	@Test
	public void testPicaXmlSplits() throws IOException {
		xmlFilenameWriter.setProperty("xmldata/@id");

		xmlFilenameWriter.startRecord("0");
		xmlFilenameWriter.literal("Element", createXml("1"));
		xmlFilenameWriter.endRecord();
		xmlFilenameWriter.startRecord("1");
		xmlFilenameWriter.literal("Element", createXml("2"));
		xmlFilenameWriter.endRecord();

		assertEquals(createXml("1"), readFile("1/1.xml"));
		assertEquals(createXml("2"), readFile("2/2.xml"));
	}

	private String readFile(final String fileName) throws IOException {
		final Path path = tempFolder.getRoot().toPath().resolve(fileName);
		return new String(Files.readAllBytes(path), StandardCharsets.UTF_8);
	}

	private String createXml(final String id) {
		return "<?xml version=\"1.0\" encoding=\"UTF-8\"?><xmldata id=\"" + id +
				"\" />";
	}

}