pt.webdetails.cdf.dd.ws.ChartList.java Source code

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Here is the source code for pt.webdetails.cdf.dd.ws.ChartList.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.ws;

import java.util.Iterator;

import net.sf.json.JSON;
import net.sf.json.JSONObject;

import org.apache.commons.jxpath.JXPathContext;
import org.pentaho.platform.engine.core.system.PentahoSystem;

import pt.webdetails.cdf.dd.util.JsonUtils;
import pt.webdetails.cdf.dd.util.Utils;

public class ChartList {

    private final String[] fileNames;

    public ChartList(String... fileNames) {

        if (fileNames == null)
            throw new IllegalArgumentException("The fileNames array can not be null");

        this.fileNames = fileNames;
    }

    @SuppressWarnings("rawtypes")
    public String toJSON() {

        StringBuilder builder = new StringBuilder("");
        builder.append("[");

        for (String fileName : this.fileNames) {

            if (!WebServiceCommons.isUnitTest())
                fileName = Utils.joinPath(PentahoSystem.getApplicationContext().getSolutionPath(""), fileName);

            JSON json = JsonUtils.getFileAsJson(fileName);
            if (json == null)
                return WebServiceCommons.JSON_FILE_DOES_NOT_EXIST;

            String dashboardName = getDashboardName(fileName);
            Iterator it = JXPathContext.newContext(json)
                    .iterate("components/rows[parent='CHARTS' or type='Componentsxaction']");

            while (it.hasNext()) {
                buildOutputJSON(builder, getIdAndTitleFromJSON((JSONObject) it.next()), dashboardName);
            }

        }

        builder.append("]");
        return builder.toString();
    }

    private void buildOutputJSON(StringBuilder builder, String[] jsonComponentIdAndTitle, String dashboardName) {

        if (builder.length() > 1) {
            builder.append(", ");
        }

        builder.append(String.format("{\"id\":\"%s\", \"title\":\"%s\", \"dashboard\" : \"%s\"}",
                jsonComponentIdAndTitle[0], jsonComponentIdAndTitle[1], dashboardName));
    }

    private String getDashboardName(String dashboardName) {
        int begin = dashboardName.lastIndexOf("/");
        int end = dashboardName.lastIndexOf(".cdfde");
        return dashboardName.substring(begin + 1, end);
    }

    @SuppressWarnings("rawtypes")
    private String[] getIdAndTitleFromJSON(JSONObject row) {
        String[] componentIdAndTitle = new String[2];

        Iterator itObj = row.getJSONArray("properties").iterator();
        while (itObj.hasNext()) {
            JSONObject props = (JSONObject) itObj.next();

            if ("Id".equalsIgnoreCase(props.getString("type"))) {
                componentIdAndTitle[0] = props.getString("value");
            }

            if ("title".equalsIgnoreCase(props.getString("name"))) {
                componentIdAndTitle[1] = props.getString("value");
            }
        }
        return componentIdAndTitle;
    }
}