/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.uima.fit.cpe;

import static org.junit.Assert.assertTrue;

import java.io.IOException;

import junit.framework.Assert;

import org.apache.uima.analysis_engine.AnalysisEngineProcessException;
import org.apache.uima.cas.TypeSystem;
import org.apache.uima.collection.CollectionException;
import org.apache.uima.fit.component.JCasAnnotator_ImplBase;
import org.apache.uima.fit.component.JCasCollectionReader_ImplBase;
import org.apache.uima.fit.factory.AnalysisEngineFactory;
import org.apache.uima.fit.factory.CollectionReaderFactory;
import org.apache.uima.jcas.JCas;
import org.apache.uima.resource.ResourceInitializationException;
import org.apache.uima.util.Progress;
import org.junit.Test;

/**
 */
public class CpePipelineTest
{
	@Test
	public void test()
		throws Exception
	{
		CpePipeline.runPipeline(CollectionReaderFactory.createReaderDescription(Reader.class),
				AnalysisEngineFactory.createEngineDescription(Annotator.class),
				AnalysisEngineFactory.createEngineDescription(Writer.class));
		Assert.assertEquals(MARKER, Writer.MARKER_SEEN);
	}

	public static final String TEXT = "Some text";
	public static final String MARKER = "annotator has seen this document";

	public static class Reader
		extends JCasCollectionReader_ImplBase
	{

		private int size = 1;

		private int current = 0;

		private boolean initTypeSystemCalled = false;

		@Override
		public void typeSystemInit(TypeSystem aTypeSystem)
			throws ResourceInitializationException
		{
			initTypeSystemCalled = true;
		}

		public Progress[] getProgress()
		{
			return null;
		}

		public boolean hasNext()
			throws IOException, CollectionException
		{
			assertTrue("typeSystemInit() has not been called", initTypeSystemCalled);
			return this.current < this.size;
		}

		@Override
		public void getNext(JCas jCas)
			throws IOException, CollectionException
		{
			jCas.setDocumentText(TEXT);
			this.current += 1;
		}

	}

	public static class Annotator
		extends JCasAnnotator_ImplBase
	{

		@Override
		public void process(JCas jCas)
			throws AnalysisEngineProcessException
		{
			jCas.setDocumentLanguage(MARKER);
		}
	}

	public static class Writer
		extends JCasAnnotator_ImplBase
	{

		public static String MARKER_SEEN;

		@Override
		public void process(JCas jCas)
			throws AnalysisEngineProcessException
		{
			MARKER_SEEN = jCas.getDocumentLanguage();
		}
	}
}