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JETT is a Java API that reads an Excel spreadsheet as a template, takes your data, and creates a new Excel spreadsheet that contains your data, formatted as in the template. It works with .xls and .xlsx template spreadsheets.

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package net.sf.jett.parser;

import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * A SheetNameMetadataParser is a MetadataParser
 * that disallows certain metadata keys that do not make sense when present as
 * part of a sheet name.
 *
 * @author Randy Gettman
 * @since 0.9.1
 */
public class SheetNameMetadataParser extends MetadataParser
{
    /**
     * Abbreviation for {@link MetadataParser#VAR_NAME_INDEXVAR}.
     */
    public static final String ABBR_INDEX_VAR = "i";
    /**
     * Abbreviation for {@link MetadataParser#VAR_NAME_LIMIT}.
     */
    public static final String ABBR_LIMIT = "l";
    /**
     * Abbreviation for {@link MetadataParser#VAR_NAME_REPLACE_VALUE}.
     */
    public static final String ABBR_REPLACE_VALUE = "r";
    /**
     * Abbreviation for {@link MetadataParser#VAR_NAME_VAR_STATUS}.
     */
    public static final String ABBR_VAR_STATUS = "v";

    private static final List RESTRICTED_KEYS = Arrays.asList(
            VAR_NAME_EXTRA_ROWS, VAR_NAME_LEFT, VAR_NAME_RIGHT, VAR_NAME_COPY_RIGHT,
            VAR_NAME_FIXED, VAR_NAME_PAST_END_ACTION, VAR_NAME_GROUP_DIR, VAR_NAME_COLLAPSE,
            VAR_NAME_ON_LOOP_PROCESSED, VAR_NAME_ON_PROCESSED
    );

    /**
     * Create a SheetNameMetadataParser.
     */
    public SheetNameMetadataParser()
    {
        super();
    }

    /**
     * Create a SheetNameMetadataParser object that will parse the given
     * metadata text.
     * @param metadataText The text of the metadata.
     */
    public SheetNameMetadataParser(String metadataText)
    {
        super(metadataText);
    }

    /**
     * Restricts many metadata keys that don't make sense in the context of a
     * sheet name.
     * @param metadataKey The metadata key.
     * @return true if it's restricted, else false.
     */
    @Override
    protected boolean isRestricted(String metadataKey)
    {
        return RESTRICTED_KEYS.contains(metadataKey);
    }

    /**
     * This parser will recognize abbreviations in the returned map.
     * @return A Map of abbreviations to metadata keys.
     */
    @Override
    protected Map getAbbreviations()
    {
        Map abbr = new HashMap();
        abbr.put(ABBR_INDEX_VAR, VAR_NAME_INDEXVAR);
        abbr.put(ABBR_LIMIT, VAR_NAME_LIMIT);
        abbr.put(ABBR_REPLACE_VALUE, VAR_NAME_REPLACE_VALUE);
        abbr.put(ABBR_VAR_STATUS, VAR_NAME_VAR_STATUS);
        return abbr;
    }
}