Java tutorial
/* * Copyright 2005-2009 the original author or authors. * * 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 eu.annocultor.converter; import java.util.ArrayList; import java.util.Collections; import java.util.List; import org.apache.commons.lang.StringUtils; import eu.annocultor.TestEnvironment; import eu.annocultor.api.Factory; import eu.annocultor.context.Namespaces; import eu.annocultor.objects.TestRulesSetup; import eu.annocultor.path.Path; import eu.annocultor.rules.ObjectRuleImpl; import eu.annocultor.triple.LiteralValue; public class ConverterHandlerDataObjectsTest extends TestRulesSetup { final String fieldId = "ID"; final String fieldName = "Name"; List<String> dataObjects = new ArrayList<String>(); public void testDO() throws Exception { final Path recordSeparatingPath = new Path(""); task = Factory.makeTask("bibliopolis", "terms", "Bibliopolis, KB", Namespaces.DC, new TestEnvironment()); objectRule = ObjectRuleImpl.makeObjectRule(task, recordSeparatingPath, new Path(fieldId), new Path(""), null, true); assertEquals(1, task.getRuleForSourcePath(recordSeparatingPath).size()); ConverterHandler defaultHandler = new ConverterHandler(task) { @Override protected void processDataObject() throws Exception { ListOfValues values = getValues(new Path(fieldName)); Collections.sort(values); dataObjects.add(StringUtils.join(values, ",")); } }; ConverterHandlerDataObjects handler = new ConverterHandlerDataObjects(defaultHandler, recordSeparatingPath); // non-aggregating (default) handler.setAggregate(false); imitateDataInsertionSequence(handler); // checks assertEquals(4, dataObjects.size()); assertEquals("2A,2B", dataObjects.get(1)); assertEquals("1A", dataObjects.get(2)); // aggregating handler.setAggregate(true); imitateDataInsertionSequence(handler); // checks assertEquals(3, dataObjects.size()); assertEquals("1A,2A,2B", dataObjects.get(1)); assertEquals("3A", dataObjects.get(2)); } private void imitateDataInsertionSequence(ConverterHandlerDataObjects handler) throws Exception { dataObjects.clear(); handler.startDocument(); makeObject(handler, "1", "1A", "1B"); makeObject(handler, "2", "2A", "2B"); makeObject(handler, "2", "1A"); makeObject(handler, "3", "3A"); handler.endDocument(); } private void makeObject(ConverterHandlerDataObjects handler, String id, String... names) throws Exception { handler.attemptDataObjectChange(id); handler.addField(fieldId, new LiteralValue(id)); for (String name : names) { handler.addField(fieldName, new LiteralValue(name)); } } }