Added LanguageModuleLoader unit tests.

x4o-driver/src/main/java/org/x4o/xml/lang/DefaultX4OLanguageLoader.java

@@ -51,14 +51,12 @@ import org.xml.sax.helpers.XMLReaderFactory;
 public class DefaultX4OLanguageLoader implements X4OLanguageLoader {
 
 	private Logger logger = null;
-	protected List<VersionedResources> modulesAll = null;
 	
 	/**
 	 * Creates the DefaultX4OLanguageLoader.
 	 */
 	public DefaultX4OLanguageLoader() {
 		logger = Logger.getLogger(DefaultX4OLanguageLoader.class.getName());
-		modulesAll = new ArrayList<VersionedResources>(20);
 	}
 	
 	/**
@@ -84,31 +82,12 @@ TODO:		if (language.getLanguageConfiguration().hasX4ODebugWriter()) {
 	 */
 	public void loadLanguage(X4OLanguageLocal languageLocal, String language,String languageVersion) throws X4OLanguageLoaderException {
 		logger.finer("Loading all modules for language: "+language);
-		try {
+		List<VersionedResources> modulesAll = loadLanguageModules(languageLocal,language);
-			loadLanguageModules(languageLocal,language);
+		modulesAll = filterVersionModules(modulesAll,languageLocal,languageVersion);
-		} catch (IOException e) {
+		validateModules(modulesAll);
-			throw new X4OLanguageLoaderException(e);
-		} catch (SAXException e) {
-			throw new X4OLanguageLoaderException(e);
-		}
 		
-		X4OLanguageVersionFilter lvf;
-		try {
-			lvf = (X4OLanguageVersionFilter)X4OLanguageClassLoader.newInstance(languageLocal.getLanguageConfiguration().getDefaultLanguageVersionFilter());
-		} catch (InstantiationException e) {
-			throw new X4OLanguageLoaderException(e);
-		} catch (IllegalAccessException e) {
-			throw new X4OLanguageLoaderException(e);
-		}
 		int loaded = 0;
 		for (VersionedResources versionedResources:modulesAll) {
-			List<String> versions = new ArrayList<String>();
-			versions.add(versionedResources.version); // FIXME
-			String modulesVersion = lvf.filterVersion(languageVersion, versions);
-			if (modulesVersion==null) {
-				continue;
-			}
-			
 			X4OLanguageModuleLoader loader;
 			for (String value:versionedResources.eldResources) {
 				String languagePrefix = languageLocal.getLanguageConfiguration().getLanguageResourcePathPrefix();
@@ -152,6 +131,50 @@ TODO:		if (language.getLanguageConfiguration().hasX4ODebugWriter()) {
 		}
 	}
 	
+	private List<VersionedResources> filterVersionModules(List<VersionedResources> resources,X4OLanguageLocal languageLocal,String languageVersion) throws X4OLanguageLoaderException {
+		List<VersionedResources> result = new ArrayList<VersionedResources>(resources.size());
+		X4OLanguageVersionFilter lvf;
+		try {
+			lvf = (X4OLanguageVersionFilter)X4OLanguageClassLoader.newInstance(languageLocal.getLanguageConfiguration().getDefaultLanguageVersionFilter());
+		} catch (InstantiationException e) {
+			throw new X4OLanguageLoaderException(e);
+		} catch (IllegalAccessException e) {
+			throw new X4OLanguageLoaderException(e);
+		}
+		for (VersionedResources versionedResources:resources) {
+			List<String> versions = new ArrayList<String>();
+			versions.add(versionedResources.version); // FIXME
+			String modulesVersion = lvf.filterVersion(languageVersion, versions);
+			if (modulesVersion==null) {
+				continue;
+			}
+			result.add(versionedResources);
+		}
+		return result;
+	}
+	
+	protected void validateModules(List<VersionedResources> resources) throws X4OLanguageLoaderException {
+		List<String> eldResources = new ArrayList<String>(5);
+		List<String> moduleLoaders = new ArrayList<String>(5);
+		List<String> elbResources = new ArrayList<String>(5);
+		List<String> siblingLoaders = new ArrayList<String>(5);
+		for (VersionedResources vr:resources) {
+			validateModuleList(eldResources,vr.eldResources,"eld-resource");
+			validateModuleList(moduleLoaders,vr.moduleLoaders,"module-loader");
+			validateModuleList(elbResources,vr.elbResources,"elb-resource");
+			validateModuleList(siblingLoaders,vr.siblingLoaders,"sibling-loader");
+		}
+	}
+	
+	private void validateModuleList(List<String> data,List<String> values,String xmlTag) throws X4OLanguageLoaderException {
+		for (String value:values) {
+			if (data.contains(value)) {
+				throw new X4OLanguageLoaderException("Duplicate "+xmlTag+" entry detected; "+value);
+			}
+			data.add(value);
+		}
+	}
+	
 	private void loadModule(X4OLanguageLocal languageLocal,X4OLanguageModuleLoader loader,String resource,VersionedResources versionedResources) throws X4OLanguageLoaderException {
 		X4OLanguageModuleLocal module;
 		try {
@@ -187,7 +210,8 @@ TODO:		if (language.getLanguageConfiguration().hasX4ODebugWriter()) {
 	 * @param languageLocal	The ElementLanguage to load for.
 	 * @param language The language to load.
 	 */
-	protected void loadLanguageModules(X4OLanguageLocal languageLocal,String language) throws IOException, SAXException {
+	protected List<VersionedResources> loadLanguageModules(X4OLanguageLocal languageLocal,String language) throws X4OLanguageLoaderException {
+		List<VersionedResources> result = new ArrayList<VersionedResources>(15);
 		StringBuilder buf = new StringBuilder(150);
 		buf.append(languageLocal.getLanguageConfiguration().getLanguageResourcePathPrefix());
 		buf.append('/');
@@ -197,18 +221,25 @@ TODO:		if (language.getLanguageConfiguration().hasX4ODebugWriter()) {
 		buf.append(languageLocal.getLanguageConfiguration().getLanguageResourceModulesFileName());
 		
 		logger.finer("loading X4O language: "+language);
-		Enumeration<URL> e = Thread.currentThread().getContextClassLoader().getResources(buf.toString());
+		try {
-		while(e.hasMoreElements()) {
+			Enumeration<URL> e = Thread.currentThread().getContextClassLoader().getResources(buf.toString());
-			URL u = e.nextElement();
+			while(e.hasMoreElements()) {
-			logMessage(languageLocal,"Loading relative modules: "+u+" for: "+language);
+				URL u = e.nextElement();
-			loadModulesXml(u.openStream(),u.toString());
+				logMessage(languageLocal,"Loading relative modules: "+u+" for: "+language);
-		}
+				result.addAll(loadLanguageModulesXml(u.openStream(),u.toString()));
+			}
 			
-		e = Thread.currentThread().getContextClassLoader().getResources("/"+buf.toString());
+			e = Thread.currentThread().getContextClassLoader().getResources("/"+buf.toString());
-		while(e.hasMoreElements()) {
+			while(e.hasMoreElements()) {
-			URL u = e.nextElement();
+				URL u = e.nextElement();
-			logMessage(languageLocal,"Loading root modules: "+u+" for: "+language);
+				logMessage(languageLocal,"Loading root modules: "+u+" for: "+language);
-			loadModulesXml(u.openStream(),u.toString());
+				result.addAll(loadLanguageModulesXml(u.openStream(),u.toString()));
+			}
+			return result;
+		} catch (IOException e) {
+			throw new X4OLanguageLoaderException(e);
+		} catch (SAXException e) {
+			throw new X4OLanguageLoaderException(e);
 		}
 	}
 	
@@ -218,7 +249,7 @@ TODO:		if (language.getLanguageConfiguration().hasX4ODebugWriter()) {
 	 * @throws IOException
 	 * @throws SAXException
 	 */
-	protected void loadModulesXml(InputStream in,String loadedFrom) throws IOException, SAXException {
+	protected List<VersionedResources> loadLanguageModulesXml(InputStream in,String loadedFrom) throws IOException, SAXException {
 		if (in==null) {
 			throw new NullPointerException("Can't parse null input stream");
 		}
@@ -229,6 +260,7 @@ TODO:		if (language.getLanguageConfiguration().hasX4ODebugWriter()) {
 		saxParser.setProperty("http://xml.org/sax/properties/declaration-handler",xth);
 		try {
 			saxParser.parse(new InputSource(in));
+			return xth.getResult();
 		} finally {
 			in.close();
 		}
@@ -238,9 +270,16 @@ TODO:		if (language.getLanguageConfiguration().hasX4ODebugWriter()) {
 		private StringBuffer buf = new StringBuffer();
 		private String loadedFrom = null;
 		private VersionedResources versionedResources = null;
+		private List<VersionedResources> result = null;
 		
 		public ModulesTagHandler(String loadedFrom) {
 			this.loadedFrom=loadedFrom;
+			this.result = new ArrayList<VersionedResources>(5);
+		}
+		
+		public List<VersionedResources> getResult()
+		{
+			return result;
 		}
 		
 		@Override
@@ -270,7 +309,7 @@ TODO:		if (language.getLanguageConfiguration().hasX4ODebugWriter()) {
 				return;
 			}
 			if ("language".equals(tag)) {
-				modulesAll.add(versionedResources);
+				result.add(versionedResources);
 				versionedResources = null;
 				return;
 			}
@@ -300,7 +339,7 @@ TODO:		if (language.getLanguageConfiguration().hasX4ODebugWriter()) {
 		}
 	}
 	
-	private class VersionedResources {
+	protected class VersionedResources {
 		public String version;
 		public String loadedFrom;
 		public List<String> eldResources = new ArrayList<String>(5);

x4o-driver/src/test/java/org/x4o/xml/lang/DefaultX4OLanguageLoaderTest.java

@@ -22,10 +22,13 @@
  */
 package org.x4o.xml.lang;
 
+import java.io.InputStream;
+import java.util.List;
+
 import org.x4o.xml.X4ODriver;
 import org.x4o.xml.lang.X4OLanguage;
-import org.x4o.xml.lang.X4OLanguageLoader;
 import org.x4o.xml.lang.X4OLanguageLocal;
+import org.x4o.xml.lang.DefaultX4OLanguageLoader.VersionedResources;
 import org.x4o.xml.lang.phase.DefaultX4OPhaseManager;
 import org.x4o.xml.lang.phase.X4OPhaseLanguageInit;
 import org.x4o.xml.lang.phase.X4OPhaseLanguageRead;
@@ -80,27 +83,69 @@ public class DefaultX4OLanguageLoaderTest extends TestCase {
 		loader.loadLanguage((X4OLanguageLocal)result, "test", "1.0");
 	}
 	
-	public void testLanguag() throws Exception {
+	public void testModulesSimple() throws Exception {
-//		loader.loadModulesXml(in);
+		InputStream in  = Thread.currentThread().getContextClassLoader().getResourceAsStream("tests/modules/test-modules-simple.xml");
+		assertNotNull(in);
+		List<VersionedResources> result = loader.loadLanguageModulesXml(in, "test-modules-simple.xml");
+		assertNotNull(result);
+		assertFalse(result.isEmpty());
+		assertTrue("Simple test returned non-one result: "+result.size(),result.size()==1);
 	}
 	
-	/*
+	public void testModulesFull() throws Exception {
-	public void testLanguageURINameSpaceTest() throws Exception {
+		InputStream in  = Thread.currentThread().getContextClassLoader().getResourceAsStream("tests/modules/test-modules-full.xml");
-		Map<String,String> languageMap = loader.loadLanguageModules(parser.getElementLanguage(), "test");
+		assertNotNull(in);
-		assertTrue("No uri for test.eld", languageMap.containsKey("eld.http://test.x4o.org/eld/test.eld"));
+		List<VersionedResources> result = loader.loadLanguageModulesXml(in, "test-modules-full.xml");
-		assertEquals("test.eld", languageMap.get("eld.http://test.x4o.org/eld/test.eld"));
+		assertNotNull(result);
+		assertFalse(result.isEmpty());
+		VersionedResources vr = result.get(0);
+		assertTrue(vr.eldResources.size()>1);
+		assertTrue(vr.moduleLoaders.size()>1);
+		assertTrue(vr.elbResources.size()>1);
+		assertTrue(vr.siblingLoaders.size()==1);
 	}
 	
-	public void testLanguageURINameSpaceX4O() throws Exception {
+	public void testModulesDuplicateLoaderNoError() throws Exception {
-		Map<String,String> languageMap = loader.loadLanguageModules(parser.getElementLanguage(), "x4o");
+		InputStream in  = Thread.currentThread().getContextClassLoader().getResourceAsStream("tests/modules/test-modules-err-loader.xml");
-		assertTrue("No uri for x4o-lang.eld", languageMap.containsKey("eld.http://eld.x4o.org/eld/x4o-lang.eld"));
+		assertNotNull(in);
-		assertEquals("x4o-lang.eld", languageMap.get("eld.http://eld.x4o.org/eld/x4o-lang.eld"));
+		List<VersionedResources> result = loader.loadLanguageModulesXml(in, "test-modules-err-loader.xml");
+		assertNotNull(result);
+		assertFalse(result.isEmpty());
 	}
 	
-	public void testLanguageURINameSpaceELD() throws Exception {
+	public void testModulesDuplicateLoader() throws Exception {
-		Map<String,String> languageMap = loader.loadLanguageModules(parser.getElementLanguage(), "eld");
+		InputStream in  = Thread.currentThread().getContextClassLoader().getResourceAsStream("tests/modules/test-modules-err-loader.xml");
-		assertTrue("No uri for eld-lang.eld", languageMap.containsKey("eld.http://eld.x4o.org/eld/eld-lang.eld"));
+		assertNotNull(in);
-		assertEquals("eld-lang.eld", languageMap.get("eld.http://eld.x4o.org/eld/eld-lang.eld"));
+		List<VersionedResources> result = loader.loadLanguageModulesXml(in, "test-modules-err-loader.xml");
+		assertNotNull(result);
+		assertFalse(result.isEmpty());
+		
+		Exception e=null;
+		try {
+			loader.validateModules(result);
+		} catch (Exception ee) {
+			e=ee;
+		}
+		assertNotNull(e);
+		assertTrue("No 'Duplicate' found in message: "+e.getMessage(),e.getMessage().contains("Duplicate"));
+		assertTrue("No 'module-loader' found in message: "+e.getMessage(),e.getMessage().contains("module-loader"));
+	}
+	
+	public void testModulesDuplicateSiblingLoader() throws Exception {
+		InputStream in  = Thread.currentThread().getContextClassLoader().getResourceAsStream("tests/modules/test-modules-err-sibling.xml");
+		assertNotNull(in);
+		List<VersionedResources> result = loader.loadLanguageModulesXml(in, "test-modules-err-sibling.xml");
+		assertNotNull(result);
+		assertFalse(result.isEmpty());
+		
+		Exception e=null;
+		try {
+			loader.validateModules(result);
+		} catch (Exception ee) {
+			e=ee;
+		}
+		assertNotNull(e);
+		assertTrue("No 'Duplicate' found in message: "+e.getMessage(),e.getMessage().contains("Duplicate"));
+		assertTrue("No 'sibling-loader' found in message: "+e.getMessage(),e.getMessage().contains("sibling-loader"));
 	}
-	*/
 }

x4o-driver/src/test/resources/tests/modules/test-modules-err-loader.xml

@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+    Copyright (c) 2004-2013, Willem Cazander
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without modification, are permitted provided
+    that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+      following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+      the following disclaimer in the documentation and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+    MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+    THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+    SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+    OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+    TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+-->
+<modules version="1.0"
+	xmlns="http://language.x4o.org/xml/ns/modules"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://language.x4o.org/xml/ns/modules http://language.x4o.org/xml/ns/modules-1.0.xsd"
+	>
+	<language version="1.0">
+		<module-loader>org.foo.bar.test.loader.EqualLoader</module-loader>
+		<module-loader>org.foo.bar.test.loader.EqualLoader</module-loader>
+	</language>
+</modules>

x4o-driver/src/test/resources/tests/modules/test-modules-err-sibling.xml

@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+    Copyright (c) 2004-2013, Willem Cazander
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without modification, are permitted provided
+    that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+      following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+      the following disclaimer in the documentation and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+    MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+    THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+    SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+    OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+    TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+-->
+<modules version="1.0"
+	xmlns="http://language.x4o.org/xml/ns/modules"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://language.x4o.org/xml/ns/modules http://language.x4o.org/xml/ns/modules-1.0.xsd"
+	>
+	<language version="1.0">
+		<sibling-loader>org.foo.bar.test.loader.EqualSiblingLoader</sibling-loader>
+		<sibling-loader>org.foo.bar.test.loader.EqualSiblingLoader</sibling-loader>
+	</language>
+</modules>

x4o-driver/src/test/resources/tests/modules/test-modules-full.xml

@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+    Copyright (c) 2004-2013, Willem Cazander
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without modification, are permitted provided
+    that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+      following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+      the following disclaimer in the documentation and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+    MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+    THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+    SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+    OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+    TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+-->
+<modules version="1.0"
+	xmlns="http://language.x4o.org/xml/ns/modules"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://language.x4o.org/xml/ns/modules http://language.x4o.org/xml/ns/modules-1.0.xsd"
+	>
+	<language version="1.0">
+		<eld-resource>my-lib0.eld</eld-resource>
+		<eld-resource>my-lib1.eld</eld-resource>
+		<eld-resource>my-lib2.eld</eld-resource>
+		<eld-resource>my-lib3.eld</eld-resource>
+		<eld-resource>my-lib4.eld</eld-resource>
+		<eld-resource>my-lib5.eld</eld-resource>
+		<eld-resource>my-lib6.eld</eld-resource>
+		<eld-resource>my-lib7.eld</eld-resource>
+		
+		<elb-resource>my-bean0.elb</elb-resource>
+		<elb-resource>my-bean1.elb</elb-resource>
+		<elb-resource>my-bean2.elb</elb-resource>
+		
+		<module-loader>org.foo.bar.test.loader.FirstLoader</module-loader>
+		<module-loader>org.foo.bar.test.loader.SecondLoader</module-loader>
+		<module-loader>org.foo.bar.test.loader.LastLoader</module-loader>
+		
+		<sibling-loader>org.foo.bar.test.loader.OtherLanguageSiblingLoader</sibling-loader>
+	</language>
+</modules>

x4o-driver/src/test/resources/tests/modules/test-modules-simple.xml

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+    Copyright (c) 2004-2013, Willem Cazander
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without modification, are permitted provided
+    that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+      following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+      the following disclaimer in the documentation and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+    MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+    THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+    SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+    OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+    TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+-->
+<modules version="1.0"
+	xmlns="http://language.x4o.org/xml/ns/modules"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://language.x4o.org/xml/ns/modules http://language.x4o.org/xml/ns/modules-1.0.xsd"
+	>
+	<language version="1.0">
+		<eld-resource>my-language.eld</eld-resource>
+	</language>
+</modules>