/*
*  Copyright (c) 2005-2010, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
*  WSO2 Inc. 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.wso2.carbon.reporting.util.commons;

import net.sf.jasperreports.engine.JRDataSource;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.data.JRXmlDataSource;
import org.wso2.carbon.reporting.api.ReportingException;

import java.io.*;


/**
 * used to create JRDataSource  from given xml data file by user
 */
public class XmlDataSource {

    public JRDataSource getJRDataSourceFromXml(String filePath) throws ReportingException {
        JRXmlDataSource jrXmlDataSource;
        try {
            InputStream inputStream = new FileInputStream(new File(filePath));
            jrXmlDataSource = new JRXmlDataSource(inputStream);
        } catch (FileNotFoundException e) {
           throw new ReportingException(filePath +" file could not found");
        } catch (JRException e) {
           throw new ReportingException("could not create JRXmlDataSource from "+ filePath);
        }

        return jrXmlDataSource;
    }

    public  JRDataSource getJRDataSourceFromString(String xmlAsString) throws ReportingException {
       byte[] bytes = xmlAsString.getBytes();
        JRXmlDataSource jrXmlDataSourceFromString;
        try {
            jrXmlDataSourceFromString = new JRXmlDataSource(new ByteArrayInputStream(bytes));
        } catch (JRException e) {
            throw new ReportingException("could not create JRXmlDataSource from "+xmlAsString);
        }

        return jrXmlDataSourceFromString;
    }

}
