com.glaf.report.xml.ReportDefinitionReader.java Source code

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Here is the source code for com.glaf.report.xml.ReportDefinitionReader.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF 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 com.glaf.report.xml;

import java.util.Iterator;
import java.util.List;
import java.util.Map;

import org.apache.commons.lang3.StringUtils;
import org.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;

import com.glaf.report.def.ReportDataSet;
import com.glaf.report.def.ReportDefinition;
import com.glaf.report.def.ReportRowSet;

public class ReportDefinitionReader {

    public List<ReportDefinition> read(java.io.InputStream inputStream) {
        List<ReportDefinition> reports = new java.util.ArrayList<ReportDefinition>();
        SAXReader xmlReader = new SAXReader();
        Document doc = null;
        try {
            doc = xmlReader.read(inputStream);
        } catch (Exception ex) {
            throw new RuntimeException(ex);
        }
        Element root = doc.getRootElement();
        List<?> rows = root.elements();
        Iterator<?> iterator = rows.iterator();
        while (iterator.hasNext()) {
            Element element = (Element) iterator.next();
            String reportId = element.attributeValue("id");
            String templateId = element.elementText("templateId");
            String templateFile = element.elementText("templateFile");

            ReportDefinition rdf = new ReportDefinition();
            rdf.setReportId(reportId);
            rdf.setTemplateId(templateId);
            rdf.setTemplateFile(templateFile);
            rdf.setProperties(this.readProperties(element));

            List<?> datasets = element.elements("dataset");
            Iterator<?> iter = datasets.iterator();
            while (iter.hasNext()) {
                Element elem = (Element) iter.next();
                ReportDataSet rds = new ReportDataSet();
                rds.setDatasourceName(elem.attributeValue("datasourceName"));
                rds.setProperties(this.readProperties(elem));

                List<?> rowsets = elem.elements("rowset");
                Iterator<?> it = rowsets.iterator();
                while (it.hasNext()) {
                    Element em = (Element) it.next();
                    ReportRowSet rs = new ReportRowSet();
                    rs.setQuery(em.elementTextTrim("query"));
                    rs.setMapping(em.attributeValue("mapping"));
                    rs.setRptMgr(em.attributeValue("rptMgr"));
                    rs.setRptMgrClassName(em.attributeValue("rptMgrClassName"));
                    rs.setRptMgrMapping(em.attributeValue("rptMgrMapping"));
                    rs.setDataMgr(em.attributeValue("dataMgr"));
                    rs.setDataMgrBeanId(em.attributeValue("dataMgrBeanId"));
                    rs.setDataMgrClassName(em.attributeValue("dataMgrClassName"));
                    rs.setProperties(this.readProperties(em));
                    String singleResult = em.attributeValue("singleResult");
                    if ("true".equals(singleResult)) {
                        rs.setSingleResult(true);
                    }
                    rds.addRowSet(rs);
                }

                rdf.addDataSet(rds);
            }
            reports.add(rdf);
        }

        return reports;
    }

    protected Map<String, Object> readProperties(Element element) {
        Map<String, Object> properties = new java.util.HashMap<String, Object>();
        Element propsElement = element.element("properties");
        if (propsElement != null) {
            List<?> rows = propsElement.elements("property");
            Iterator<?> iter = rows.iterator();
            while (iter.hasNext()) {
                Element elem = (Element) iter.next();
                String name = elem.attributeValue("name");
                String value = elem.attributeValue("value");
                if (StringUtils.isEmpty(value)) {
                    value = elem.getStringValue();
                }
                properties.put(name, value);
            }
        }
        return properties;
    }

}