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/*
 * ObjectLab, http://www.objectlab.co.uk/open is supporting FlatPack.
 *
 * Based in London, we are world leaders in the design and development
 * of bespoke applications for the securities financing markets.
 *
 * Click here to learn more
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 *
 *                     www.ObjectLab.co.uk
 *
 * $Id: ColorProvider.java 74 2006-10-24 22:19:05Z benoitx $
 *
 * Copyright 2006 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 net.sf.flatpack;

import java.io.File;
import java.io.FileReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;

import net.sf.flatpack.xml.MapParser;

/**
 * @author xhensevb
 *
 */
public class DelimiterParser extends AbstractDelimiterParser {
    private InputStream pzmapXMLStream = null;
    private File pzmapXML = null;
    private Reader pzmapReader;

    // this InputStream and file can be removed after support for
    // file and inputstream is removed from the parserfactory. The
    // methods have been deprecated..pz
    private InputStream dataSourceStream = null;
    private File dataSource = null;

    public DelimiterParser(final File pzmapXML, final File dataSource, final char delimiter, final char qualifier, final boolean ignoreFirstRecord) {
        super(null, delimiter, qualifier, ignoreFirstRecord);
        this.pzmapXML = pzmapXML;
        this.dataSource = dataSource;
    }

    public DelimiterParser(final InputStream pzmapXMLStream, final InputStream dataSourceStream, final char delimiter, final char qualifier,
            final boolean ignoreFirstRecord) {
        super(null, delimiter, qualifier, ignoreFirstRecord);
        this.pzmapXMLStream = pzmapXMLStream;
        this.dataSourceStream = dataSourceStream;
    }

    public DelimiterParser(final File dataSource, final char delimiter, final char qualifier, final boolean ignoreFirstRecord) {
        super(null, delimiter, qualifier, ignoreFirstRecord);
        this.dataSource = dataSource;
    }

    public DelimiterParser(final InputStream dataSourceStream, final char delimiter, final char qualifier, final boolean ignoreFirstRecord) {
        super(null, delimiter, qualifier, ignoreFirstRecord);
        this.dataSourceStream = dataSourceStream;
    }

    public DelimiterParser(final Reader dataSourceReader, final char delimiter, final char qualifier, final boolean ignoreFirstRecord) {
        super(dataSourceReader, delimiter, qualifier, ignoreFirstRecord);
    }

    public DelimiterParser(final Reader dataSourceReader, final Reader pzmapReader, final char delimiter, final char qualifier,
            final boolean ignoreFirstRecord) {
        super(dataSourceReader, delimiter, qualifier, ignoreFirstRecord);
        this.pzmapReader = pzmapReader;
    }

    @Override
    protected void init() {
        try {
            // check to see if the user is using a File or InputStream. This is
            // here for backwards compatibility
            initStreamOrSource(dataSourceStream, dataSource);

            boolean closeMapReader = false;
            if (pzmapXML != null) {
                this.pzmapReader = new FileReader(pzmapXML);
                closeMapReader = true;
            } else if (pzmapXMLStream != null) {
                this.pzmapReader = new InputStreamReader(pzmapXMLStream);
                closeMapReader = true;
            }

            if (this.pzmapReader != null) {
                try {
                    setPzMetaData(MapParser.parseMap(this.pzmapReader, this));
                } finally {
                    if (closeMapReader) {
                        // only close the reader if it is one we created
                        // otherwise we will let the user handle it
                        this.pzmapReader.close();
                    }
                }
            }

            setInitialised(true);
        } catch (final Exception e) {
            throw new InitialisationException(e);
        }
    }

    @Override
    protected boolean shouldCreateMDFromFile() {
        return pzmapReader == null;
    }
}