MappingProviderTest.java

/*
 * Copyright 2012
 * Ubiquitous Knowledge Processing (UKP) Lab
 * Technische Universität Darmstadt
 * 
 * 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 de.tudarmstadt.ukp.dkpro.core.api.resources;

import static org.junit.Assert.assertEquals;

import java.io.IOException;
import java.net.URL;
import java.util.Map;
import java.util.Properties;

import org.apache.uima.cas.CAS;
import org.apache.uima.resource.metadata.impl.TypeSystemDescription_impl;
import org.apache.uima.util.CasCreationUtils;
import org.junit.Test;

public class MappingProviderTest
{
	@Test
	public void testLanguageChange() throws Exception
	{
		MappingProvider mappingProvider = new MappingProvider();
		mappingProvider.setDefault(MappingProvider.LOCATION, "src/test/resources/${language}.map");
		
		CAS cas = CasCreationUtils.createCas(new TypeSystemDescription_impl(), null, null);
		
		cas.setDocumentLanguage("en");
		mappingProvider.configure(cas);
		Map<String, String> enMap = mappingProvider.getResource();
		assertEquals("en", enMap.get("value"));
		
		cas.setDocumentLanguage("de");
		mappingProvider.configure(cas);
		Map<String, String> deMap = mappingProvider.getResource();
		assertEquals("de", deMap.get("value"));
	}

	@Test
	public void testDefaultVariantWithLanguageOverride() throws Exception
	{
		Properties defaultVariants = new Properties();
		defaultVariants.setProperty("de", "variant1");
		defaultVariants.setProperty("en", "variant2");
		
		MappingProvider mappingProvider = new MappingProvider();
		mappingProvider.setDefaultVariants(defaultVariants);
		mappingProvider.setDefault(MappingProvider.LOCATION, "${language}-${variant}.map");

		CAS cas = CasCreationUtils.createCas(new TypeSystemDescription_impl(), null, null);
		
		// Test default behavior
		cas.setDocumentLanguage("en");
		mappingProvider.configure(cas);
		assertEquals("en-variant2.map", mappingProvider.getModelLocation());

		// Test language override affects variant
		mappingProvider.setOverride(MappingProvider.LANGUAGE, "de");
		mappingProvider.configure(cas);
		assertEquals("de-variant1.map", mappingProvider.getModelLocation());

		// Test variant can still be overridden after language override
		mappingProvider.setOverride(MappingProvider.LANGUAGE, "de");
		mappingProvider.setOverride(MappingProvider.VARIANT, "variant3");
		mappingProvider.configure(cas);
		assertEquals("de-variant3.map", mappingProvider.getModelLocation());
	}

	@Test
	public void testTagsetChange() throws Exception
	{
		CasConfigurableProviderBase<String> modelProvider = new CasConfigurableProviderBase<String>()
		{
			{
				setDefault(LOCATION, "src/test/resources/${language}.model");
			}
			
			@Override
			protected String produceResource(URL aUrl)
				throws IOException
			{
				return aUrl.toString();
			}
		};
		
		MappingProvider mappingProvider = new MappingProvider();
		mappingProvider.setDefault(MappingProvider.LOCATION, "src/test/resources/${language}-${tagset}.map");
		mappingProvider.addImport("tagset", modelProvider);
		
		CAS cas = CasCreationUtils.createCas(new TypeSystemDescription_impl(), null, null);
		
		cas.setDocumentLanguage("en");
		modelProvider.configure(cas);
		mappingProvider.configure(cas);
		Map<String, String> enMap = mappingProvider.getResource();
		assertEquals("en", enMap.get("value"));
		assertEquals("mytags1", enMap.get("tagset"));
		
		cas.setDocumentLanguage("de");
		modelProvider.configure(cas);
		mappingProvider.configure(cas);
		Map<String, String> deMap = mappingProvider.getResource();
		assertEquals("de", deMap.get("value"));
		assertEquals("mytags2", deMap.get("tagset"));
	}

	@Test
	public void testRedirectedModel() throws Exception
	{
		CasConfigurableProviderBase<String> modelProvider = new CasConfigurableProviderBase<String>()
		{
			{
				setDefault(LOCATION, "src/test/resources/${language}-redirect2.properties");
			}
			
			@Override
			protected String produceResource(URL aUrl)
				throws IOException
			{
				return aUrl.toString();
			}
		};
		
		MappingProvider mappingProvider = new MappingProvider();
		mappingProvider.setDefault(MappingProvider.LOCATION, "src/test/resources/${language}-${tagset}.map");
		mappingProvider.addImport("tagset", modelProvider);
		
		CAS cas = CasCreationUtils.createCas(new TypeSystemDescription_impl(), null, null);
		
		cas.setDocumentLanguage("de");
		modelProvider.configure(cas);
		mappingProvider.configure(cas);
		Map<String, String> deMap = mappingProvider.getResource();
		assertEquals("de-override", deMap.get("value"));
		Properties meta = modelProvider.getResourceMetaData();
		assertEquals("mytags1", meta.getProperty("tagset"));
		assertEquals("true", meta.getProperty("redirect"));
		assertEquals("true", meta.getProperty("redirect2"));
	}

    @Test
    public void testRedirectedTagset() throws Exception
    {
        MappingProvider mappingProvider = new MappingProvider();
        mappingProvider.setOverride(MappingProvider.LOCATION, "src/test/resources/${language}-${tagset}.map");
        mappingProvider.setDefault("tagset", "redirect");
        
        CAS cas = CasCreationUtils.createCas(new TypeSystemDescription_impl(), null, null);
        
        cas.setDocumentLanguage("de");
        mappingProvider.configure(cas);
        
        Map<String, String> deMap = mappingProvider.getResource();
        assertEquals("de", deMap.get("value"));
        
        Properties meta = mappingProvider.getResourceMetaData();
        assertEquals("redirected", meta.getProperty("tagset"));
    }
}