testcharttitleformatrecord.java

来自「EXCEL read and write」· Java 代码 · 共 79 行

/* ====================================================================
   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.
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package org.apache.poi.hssf.record;

import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

import junit.framework.TestCase;

import org.apache.poi.hssf.HSSFTestDataSamples;
import org.apache.poi.hssf.eventusermodel.HSSFEventFactory;
import org.apache.poi.hssf.eventusermodel.HSSFListener;
import org.apache.poi.hssf.eventusermodel.HSSFRequest;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
/**
 * 
 */
public final class TestChartTitleFormatRecord extends TestCase {

	public void testRecord() throws Exception {
		POIFSFileSystem fs = new POIFSFileSystem(
				HSSFTestDataSamples.openSampleFileStream("WithFormattedGraphTitle.xls"));
		
		// Check we can open the file via usermodel
		HSSFWorkbook hssf = new HSSFWorkbook(fs);
		
		// Now process it through eventusermodel, and
		//  look out for the title records
		ChartTitleFormatRecordGrabber grabber = new ChartTitleFormatRecordGrabber();
		InputStream din = fs.createDocumentInputStream("Workbook");
		HSSFRequest req = new HSSFRequest();
		req.addListenerForAllRecords(grabber);
		HSSFEventFactory factory = new HSSFEventFactory();
		factory.processEvents(req, din);
		din.close();
		
		// Should've found one
		assertEquals(1, grabber.chartTitleFormatRecords.size());
		// And it should be of something interesting
		ChartTitleFormatRecord r =
			(ChartTitleFormatRecord)grabber.chartTitleFormatRecords.get(0);
		assertEquals(3, r.getFormatCount());
	}
	
	private static final class ChartTitleFormatRecordGrabber implements HSSFListener {
		private final List chartTitleFormatRecords;
		
		public ChartTitleFormatRecordGrabber() {
			chartTitleFormatRecords = new ArrayList();
		}

		public void processRecord(Record record) {
			if(record instanceof ChartTitleFormatRecord) {
				chartTitleFormatRecords.add(
						record
				);
			}
		}
		
	}
}