Examples with RuleMetaDataDto org.jaffa.rules.dto.RuleMetaDataDto used on opensource projects

Example 1 with RuleMetaDataDto

use of org.jaffa.rules.dto.RuleMetaDataDto in project jaffa-framework by jaffa-projects.

the class MetaDataWriter method write.

/**
 * Writes the supplied meta data into the supplied source file
 */
public static void write(ClassMetaDataDto cmd) throws MetaDataWriterException {
    if (cmd.getSourceFileName() == null) {
        log.error("No source folder was supplied for meta data export.");
        throw new MetaDataWriterException(MetaDataWriterException.SOURCE_NOT_FOUND);
    }
    Document document = null;
    try {
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        DocumentBuilder builder = factory.newDocumentBuilder();
        document = builder.newDocument();
    } catch (javax.xml.parsers.ParserConfigurationException dbe) {
        log.error("No source folder was supplied for meta data export.");
        throw new MetaDataWriterException(MetaDataWriterException.PARSE_ERROR, null, dbe);
    }
    Element aop = document.createElement("aop");
    Element metadata = document.createElement("metadata");
    metadata.setAttribute("tag", "jaffa.rules");
    metadata.setAttribute("class", cmd.getName());
    if (cmd.getExecutionRealm() != null && !cmd.getExecutionRealm().equals(""))
        metadata.setAttribute("execution-realm", cmd.getExecutionRealm());
    if (cmd.getExtendsClass() != null && !cmd.getExtendsClass().equals(""))
        metadata.setAttribute("extends-class", cmd.getExtendsClass());
    if (cmd.getLanguage() != null && !cmd.getLanguage().equals(""))
        metadata.setAttribute("language", cmd.getLanguage());
    if (cmd.getCondition() != null && !cmd.getCondition().equals(""))
        metadata.setAttribute("condition", cmd.getCondition());
    List<RuleMetaDataDto> classRules = cmd.getRules();
    if (classRules != null) {
        for (RuleMetaDataDto classRule : classRules) {
            Rule ruleInfo = RuleRepository.instance().getRuleByName(classRule.getRuleName());
            Element propertyRule = document.createElement(classRule.getRuleName());
            Map<String, String> params = classRule.getParameters();
            Boolean customProcess = false;
            // If label rule contains a token and a tokenValue then update applicationResources with the new token value
            if (classRule.getRuleName().equals("label")) {
                String token = null, value = null;
                if (params != null) {
                    for (Map.Entry<String, String> param : params.entrySet()) {
                        if (param.getKey().equals("token")) {
                            token = param.getValue();
                        }
                        if (param.getKey().equals("tokenValue")) {
                            value = param.getValue();
                        }
                    }
                }
                if (token != null && value != null) {
                    try {
                        LabelHelper.setLabel(token, value);
                    } catch (FrameworkException e) {
                        log.debug(e.getLocalizedMessage());
                    }
                    customProcess = true;
                }
            }
            if (!customProcess) {
                if (params != null) {
                    for (Map.Entry<String, String> param : params.entrySet()) {
                        if (ruleInfo != null && ruleInfo.getTextParameter() != null && ruleInfo.getTextParameter().equals(param.getKey())) {
                            propertyRule.setTextContent(param.getValue());
                        } else {
                            propertyRule.setAttribute(param.getKey(), param.getValue());
                        }
                    }
                }
                metadata.appendChild(propertyRule);
            }
        }
    }
    List<PropertyMetaDataDto> fields = cmd.getProperties();
    List<String> processedProperties = new LinkedList<String>();
    if (fields != null) {
        for (PropertyMetaDataDto field : fields) {
            if (processedProperties.indexOf(field.getPropertyName().toLowerCase()) >= 0) {
                log.error("Property has been defined multiple times: " + field.getPropertyName());
                throw new MetaDataWriterException(MetaDataWriterException.DUPLICATE_PROPERTY);
            }
            processedProperties.add(field.getPropertyName().toLowerCase());
            Element property = document.createElement("property");
            property.setAttribute("name", field.getPropertyName());
            if (field.getExtendsProperty() != null && !field.getExtendsProperty().equals(""))
                metadata.setAttribute("extends-property", field.getExtendsProperty());
            if (field.getExtendsClass() != null && !field.getExtendsClass().equals(""))
                metadata.setAttribute("extends-class", field.getExtendsClass());
            if (field.getLanguage() != null && !field.getLanguage().equals(""))
                metadata.setAttribute("language", field.getLanguage());
            if (field.getCondition() != null && !field.getCondition().equals(""))
                property.setAttribute("condition", field.getCondition());
            List<RuleMetaDataDto> rules = field.getRules();
            if (rules != null) {
                for (RuleMetaDataDto rule : rules) {
                    Rule ruleInfo = RuleRepository.instance().getRuleByName(rule.getRuleName());
                    Element propertyRule = document.createElement(rule.getRuleName());
                    Map<String, String> params = rule.getParameters();
                    if (params != null) {
                        for (Map.Entry<String, String> param : params.entrySet()) {
                            if (ruleInfo != null && ruleInfo.getTextParameter() != null && ruleInfo.getTextParameter().equals(param.getKey())) {
                                propertyRule.setTextContent(param.getValue());
                            } else {
                                propertyRule.setAttribute(param.getKey(), param.getValue());
                            }
                        }
                    }
                    property.appendChild(propertyRule);
                }
            }
            metadata.appendChild(property);
        }
    }
    aop.appendChild(metadata);
    document.appendChild(aop);
    File file = null;
    try {
        TransformerFactory transformerFactory = TransformerFactory.newInstance();
        Transformer transformer = transformerFactory.newTransformer();
        transformer.setOutputProperty(OutputKeys.INDENT, "yes");
        transformer.setOutputProperty(OutputKeys.METHOD, "xml");
        transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
        DOMSource source = new DOMSource(document);
        String filteredSourceFileName = FileFilter.filterUserInputFileName(cmd.getSourceFileName());
        if (filteredSourceFileName == null) {
            log.error("Error resolving source file name.");
            throw new IllegalArgumentException();
        }
        file = new File(new URI(filteredSourceFileName));
        log.debug("Writing aop file to: " + file.getAbsolutePath());
        File parentDir = file.getParentFile();
        if (!parentDir.exists())
            parentDir.mkdirs();
        StreamResult result = new StreamResult(file);
        transformer.transform(source, result);
    } catch (javax.xml.transform.TransformerException te) {
        log.error("Error writing xml document into file.");
        throw new MetaDataWriterException(MetaDataWriterException.XML_PARSE_ERROR, null, te);
    } catch (URISyntaxException se) {
        log.error("Source path could not be converted to URI");
        throw new MetaDataWriterException(MetaDataWriterException.SOURCE_NOT_FOUND, null, se);
    }
    try {
        MetaDataRepository.instance().unload(file.toURI().toString());
        AopXmlLoader.getInstance().processAopPaths(Collections.singletonList(file.toString().toString()));
    } catch (JaffaRulesFrameworkException jrfe) {
        log.error("Error loading/unloading class meta data from file.");
        throw new MetaDataWriterException(MetaDataWriterException.FILE_ERROR, null, jrfe);
    }
}