pt.webdetails.cdf.dd.datasources.DataSourceReader.java Source code

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Here is the source code for pt.webdetails.cdf.dd.datasources.DataSourceReader.java

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/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/. */

package pt.webdetails.cdf.dd.datasources;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.apache.commons.jxpath.JXPathContext;
import org.apache.commons.jxpath.Pointer;
import org.apache.commons.jxpath.ri.model.beans.NullPointer;
import org.apache.commons.lang.StringUtils;

import pt.webdetails.cdf.dd.AbstractDashboard;
import pt.webdetails.cdf.dd.util.XPathUtils;
import pt.webdetails.cpf.repository.RepositoryAccess;

public class DataSourceReader {

    public static class CdaDataSource {
        String cdaSettings;
        String dataAccessId;

        CdaDataSource(JXPathContext dataSourceContext) {
            this(dataSourceContext, null);
        }

        CdaDataSource(JXPathContext dataSourceContext, String cdaSettings) {
            this.dataAccessId = XPathUtils.getStringValue(dataSourceContext, "properties/value[../name='name']");

            if (cdaSettings != null) {
                this.cdaSettings = cdaSettings;
            } else {
                if (XPathUtils.exists(dataSourceContext, "properties/value[../name='cdaPath']")) {
                    this.cdaSettings = XPathUtils.getStringValue(dataSourceContext,
                            "properties/value[../name='cdaPath']");
                } else {
                    this.cdaSettings = XPathUtils.getStringValue(dataSourceContext,
                            "properties/value[../name='solution']") + '/'
                            + XPathUtils.getStringValue(dataSourceContext, "properties/value[../name='path']") + '/'
                            + XPathUtils.getStringValue(dataSourceContext, "properties/value[../name='file']");
                }
            }
        }

        public CdaDataSource(String cdaSettings, String dataAccessId) {
            this.cdaSettings = cdaSettings;
            this.dataAccessId = dataAccessId;
        }

        public String toString() {
            return "{cdaSettingsId:'" + cdaSettings + "'"
                    + (dataAccessId != null ? (", dataAccessId:'" + dataAccessId + "'") : "") + "}";
        }

    }

    public static List<CdaDataSource> getCdaDataSources(String dashboard) {

        JXPathContext context;
        try {
            context = AbstractDashboard.openDashboardAsJXPathContext(RepositoryAccess.getRepository(), dashboard,
                    null);
        } catch (FileNotFoundException e) {
            return null;
        } catch (IOException e) {
            return null;
        }
        return getCdaDataSources(context);
    }

    private static List<CdaDataSource> getCdaDataSources(JXPathContext docContext) {

        ArrayList<CdaDataSource> dataSources = new ArrayList<CdaDataSource>();
        //external
        @SuppressWarnings("unchecked")
        Iterator<Pointer> extDataSources = docContext
                .iteratePointers("/datasources/rows[properties/name='dataAccessId']");
        while (extDataSources.hasNext()) {
            Pointer source = extDataSources.next();
            if (!(source instanceof NullPointer)) {
                dataSources.add(new CdaDataSource(docContext.getRelativeContext(source)));
            }
        }

        @SuppressWarnings("unchecked")
        Iterator<Pointer> builtInDataSources = docContext.iteratePointers("/datasources/rows[meta='CDA']");
        if (builtInDataSources.hasNext()) {
            //built-in
            String fileName = XPathUtils.getStringValue(docContext, "/filename");
            String toReplace = ".cdfde";
            String replaceWith = ".cda";
            if (StringUtils.endsWith(fileName, ".wcdf")) {
                toReplace = ".wcdf";
            }
            fileName = StringUtils.replace(fileName, toReplace, replaceWith);
            //just add cda name
            dataSources.add(new CdaDataSource(fileName, null));
            //      
            //  
            //      while(builtInDataSources.hasNext()){
            //        Pointer source = builtInDataSources.next();
            //        if(!(source instanceof NullPointer)){
            //          dataSources.add(new CdaDataSource(docContext.getRelativeContext(source), fileName));
            //        }
            //      }
        }

        return dataSources;
    }

}