at.nhmwien.schema_mapping_tool.fileProcessors.XlsxProcessor.java Source code

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Here is the source code for at.nhmwien.schema_mapping_tool.fileProcessors.XlsxProcessor.java

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/*
   Copyright 2011 Museum of Natural History Vienna
    
   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 at.nhmwien.schema_mapping_tool.fileProcessors;

import at.nhmwien.schema_mapping_tool.mappingProcess.MappingsHandler;
import java.io.FileInputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

/**
 *
 * @author wkoller
 */

public class XlsxProcessor extends FileProcessor {
    private XSSFWorkbook readBook = null;
    private XSSFSheet readSheet = null;

    /*private WritableWorkbook writeBook = null;
    private WritableSheet writeSheet = null;*/

    private int currRow = 1;
    //private ArrayList<String> fieldNames = null;
    private HashMap<String, Integer> fieldNames = null;

    public void prepareFileRead() throws Exception {
        this.fieldNames = new HashMap<String, Integer>();

        this.readBook = new XSSFWorkbook(new FileInputStream(this.operateFile));
        this.readSheet = this.readBook.getSheetAt(0);

        Iterator<Cell> cellIt = this.readSheet.getRow(0).cellIterator();
        while (cellIt.hasNext()) {
            Cell currCell = cellIt.next();

            if (currCell.getCellType() != Cell.CELL_TYPE_STRING)
                continue;

            this.fieldNames.put(currCell.getStringCellValue(), currCell.getColumnIndex());
        }

        this.currRow = 1;
    }

    public void prepareFileWrite() throws Exception {
        /*this.fieldNames = MappingsHandler.Self().getOutputOrder();
            
        this.writeBook = Workbook.createWorkbook(this.operateFile);
        this.writeSheet = this.writeBook.createSheet("SMT Export", 0);
            
        for( int i = 0; i < fieldNames.size(); i++ ) {
        Label headerCell = new Label( i, 0, fieldNames.get(i) );
        this.writeSheet.addCell(headerCell);
        }*/
    }

    public void nextEntry() throws Exception {
        if (this.readSheet != null) {
            ArrayList<String> fieldOrder = MappingsHandler.Self().getInputOrder();

            for (int i = 0; i < fieldOrder.size(); i++) {
                DataRecord nRecord = new DataRecord();
                nRecord.setIDRecord(fieldOrder.get(i));
                nRecord.setRecordContent(this.readSheet.getRow(this.currRow)
                        .getCell(this.fieldNames.get(fieldOrder.get(i)).intValue()).toString());
                this.recordsStack.add(nRecord);
            }
        } else {
            /*for( int i = 0; i < this.recordsStack.size(); i++ ) {
            DataRecord currRecord = this.recordsStack.get(i);
                
            int fieldIndex = this.fieldNames.indexOf(currRecord.getIDRecord());
                
            if( fieldIndex < 0 ) {
                this.fieldNames.add(currRecord.getIDRecord());
                fieldIndex = this.fieldNames.size() - 1;
                
                // Add header row
                Label headerCell = new Label( fieldIndex, 0, currRecord.getIDRecord() );
                this.writeSheet.addCell(headerCell);
            }
                
            Label dataCell = new Label( fieldIndex, this.currRow, currRecord.getRecordContent() );
            this.writeSheet.addCell(dataCell);
            }
            this.recordsStack.clear();*/
        }

        this.currRow++;
    }

    @Override
    public void skipEntry() throws Exception {
        throw new UnsupportedOperationException("Not supported yet.");
    }

    public void addDataRecord(DataRecord nRecord, boolean bAddNew, boolean bReplaceAll) {
        /*for( int i = 0; i < this.recordsStack.size(); i++ ) {
        DataRecord currRecord = this.recordsStack.get(i);
            
        if( currRecord.getIDRecord().equals( nRecord.getIDRecord() ) ) {
            this.recordsStack.remove(i);
            
            break;
        }
        }
            
        this.recordsStack.add(nRecord);*/
    }

    public DataRecord getDataRecord(String IDRecord) {
        DataRecord nRecord = new DataRecord();
        nRecord.setIDRecord(IDRecord);
        nRecord.setRecordContent("");

        for (int i = 0; i < this.recordsStack.size(); i++) {
            DataRecord currRecord = this.recordsStack.get(i);

            if (currRecord.getIDRecord().equals(nRecord.getIDRecord())) {
                nRecord.setRecordContent(currRecord.getRecordContent());

                break;
            }
        }

        return nRecord;
    }

    public void done() {
        try {
            if (this.readBook != null) {
                this.readSheet = null;
                this.readBook = null;
            } else {
                /*this.writeBook.write();
                this.writeBook.close();
                this.writeSheet = null;
                this.writeBook = null;*/
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public boolean hasNext() {
        if (this.recordsStack.size() > 0 || this.currRow < this.readSheet.getLastRowNum())
            return true;

        return false;
    }

    public String[] getSupportedFileExtensions() {
        String arr[] = { "xlsx" };

        return arr;
    }
}