Examples with FunctionsChangeEvent com.ramussoft.eval.event.FunctionsChangeEvent used on opensource projects

Example 1 with FunctionsChangeEvent

use of com.ramussoft.eval.event.FunctionsChangeEvent in project ramus by Vitaliy-Yakovchuk.

the class EvalPlugin method init.

@Override
public void init(final Engine engine, AccessRules rules) {
    super.init(engine, rules);
    Qualifier qualifier = StandardAttributesPlugin.getQualifiersQualifier(engine);
    engine.setPluginProperty(getName(), "Plugin", this);
    function = getFunction(qualifier);
    if (function == null) {
        function = engine.createSystemAttribute(new AttributeType(EVAL, "Function", false));
        function.setName(FUNCTION_ATTRIBUTE);
        engine.updateAttribute(function);
        qualifier.getSystemAttributes().add(function);
        engine.updateQualifier(qualifier);
    }
    functionDependences = engine.getSystemQualifier(QUALIFIER_EVAL_FUNCTION_DEPENDENCES);
    if (functionDependences == null) {
        createEvalObjects(engine);
    } else {
        functionDependence = engine.getSystemAttribute(ATTRIBUTE_EVAL_FUNCTION_DEPENDENCE);
        functionDependenceQualifier = engine.getSystemAttribute(ATTRIBUTE_EVAL_DEPENDENCE_QUALIFIER);
        functionDependenceAttribute = engine.getSystemAttribute(ATTRIBUTE_EVAL_DEPENDENCE_ATTRIBUTE);
        functionDependenceSourceAttribute = engine.getSystemAttribute(ATTRIBUTE_EVAL_FUNCTION_DEPENDENCE_SOURCE_ATTRIBUTE);
    }
    if (!StandardAttributesPlugin.isDisableAutoupdate(engine)) {
        final Util util = Util.getUtils(engine);
        util.getScriptHolders().addFunctionsChangeListener(new FunctionsChangeListener() {

            @SuppressWarnings("unchecked")
            @Override
            public void functionsChanged(FunctionsChangeEvent event) {
                IEngine iEngine = engine.getDeligate();
                if ((iEngine != null) && (iEngine instanceof IEngineImpl)) {
                    JDBCTemplate template = ((IEngineImpl) iEngine).getTemplate();
                    String prefix = ((IEngineImpl) iEngine).getPrefix();
                    for (String function : event.getFunctionNames()) {
                        List<FunctionPersistent> list = template.query("SELECT function, qualifier_attribute_id, qualifier_table_attribute_id, autochange, attribute_id, element_id FROM " + prefix + "attribute_functions WHERE function LIKE ? AND autochange=1", new RowMapper() {

                            @Override
                            public Object mapRow(ResultSet rs, int rowNum) throws SQLException {
                                FunctionPersistent persistent = new FunctionPersistent(rs.getString(1), rs.getLong(2), rs.getLong(3), rs.getInt(4));
                                persistent.setAttributeId(rs.getLong(5));
                                persistent.setElementId(rs.getLong(6));
                                return persistent;
                            }
                        }, new Object[] { "%" + function + "%" }, true);
                        for (FunctionPersistent fp : list) {
                            recalculateQualifierAttribute(engine, StandardAttributesPlugin.getQualifier(engine, engine.getElement(fp.getElementId())), util, fp);
                        }
                    }
                }
                for (String function : event.getFunctionNames()) {
                    for (CalculateInfo info : engine.findCalculateInfos("%" + function + "%", true)) {
                        recalculate(engine, info);
                    }
                }
            }
        });
        engine.addElementAttributeListener(null, new ElementAttributeListener() {

            @SuppressWarnings("unchecked")
            @Override
            public void attributeChanged(AttributeEvent event) {
                if (event.isJournaled())
                    return;
                if (DISABLE_RECALC)
                    return;
                if (event.getElement() == null) {
                    IEngine d = engine.getDeligate();
                    List<Element> allElements = null;
                    if ((d != null) && (d instanceof IEngineImpl)) {
                        JDBCTemplate template = ((IEngineImpl) d).getTemplate();
                        String prefix = ((IEngineImpl) d).getPrefix();
                        allElements = template.query("SELECT * FROM " + prefix + "elements WHERE qualifier_id in\n" + "(SELECT qualifier_id FROM " + prefix + "qualifiers_attributes WHERE attribute_id=?)", new RowMapper() {

                            @Override
                            public Object mapRow(ResultSet rs, int rowNum) throws SQLException {
                                return new Element(rs.getLong("element_id"), rs.getLong("qualifier_id"), rs.getString("element_name"));
                            }
                        }, new Object[] { event.getAttribute().getId() }, true);
                    } else {
                        Attribute attribute = event.getAttribute();
                        allElements = new ArrayList<Element>();
                        for (Qualifier qualifier : engine.getQualifiers()) {
                            if (qualifier.getAttributes().indexOf(attribute) >= 0) {
                                allElements.addAll(engine.getElements(qualifier.getId()));
                            }
                        }
                    }
                    Attribute attribute = event.getAttribute();
                    for (Element element : allElements) {
                        recalculateElement(engine, new AttributeEvent(engine, element, attribute, null, null));
                    }
                } else
                    recalculateElement(engine, event);
            }

            private void recalculateElement(final Engine engine, AttributeEvent event) {
                MetaValue metaValue = new MetaValue(event.getElement().getId(), event.getAttribute().getId());
                List<MetaValue> metaValueList = hashtable.get(Thread.currentThread());
                if (metaValueList == null) {
                    metaValueList = new ArrayList<MetaValue>();
                    hashtable.put(Thread.currentThread(), metaValueList);
                } else {
                    if (metaValueList.indexOf(metaValue) >= 0)
                        return;
                }
                metaValueList.add(metaValue);
                try {
                    for (CalculateInfo info : engine.getDependences(event.getElement().getId(), event.getAttribute().getId(), true)) {
                        recalculate(engine, info);
                    }
                    List<Element> elements = engine.findElements(functionDependences.getId(), functionDependence, event.getElement().getId());
                    for (Element e : elements) {
                        Qualifier qualifier = engine.getQualifier((Long) engine.getAttribute(e, functionDependenceQualifier));
                        Attribute attribute = engine.getAttribute((Long) engine.getAttribute(e, functionDependenceAttribute));
                        if ((qualifier != null) && (attribute != null)) {
                            Element el = StandardAttributesPlugin.getElement(event.getEngine(), qualifier.getId());
                            if (el != null)
                                for (Element child : engine.getElements(qualifier.getId())) {
                                    recalculateInQualifier(engine, Util.elementIdToValue(event.getElement().getId(), event.getAttribute().getId()), null, el, child);
                                }
                        }
                    }
                    Element element = StandardAttributesPlugin.getElement(event.getEngine(), event.getElement().getQualifierId());
                    if (element == null) {
                        Qualifier qualifier = engine.getQualifier(event.getElement().getQualifierId());
                        if (StandardAttributesPlugin.isTableQualifier(qualifier)) {
                            Element parent = StandardAttributesPlugin.getElementForTableElement(engine, event.getElement());
                            if (parent == null)
                                return;
                            Qualifier main = engine.getQualifier(parent.getQualifierId());
                            Attribute tableAttribute = null;
                            for (Attribute attr : main.getAttributes()) {
                                if (StandardAttributesPlugin.getTableQualifeirName(attr).equals(qualifier.getName())) {
                                    tableAttribute = attr;
                                    break;
                                }
                            }
                            if (tableAttribute == null)
                                return;
                            element = StandardAttributesPlugin.getElement(event.getEngine(), parent.getQualifierId());
                            if (element != null) {
                                if (event.getAttribute().equals(StandardAttributesPlugin.getTableElementIdAttribute(engine)))
                                    recalculateInQualifier(engine, null, event.getElement(), element, parent);
                                else
                                    recalculateInQualifier(engine, Util.tableAttributeToValue(tableAttribute.getId(), event.getAttribute().getId()), event.getElement(), element, parent);
                            }
                        }
                        return;
                    }
                    recalculateInQualifier(engine, Util.attributeIdToValue(event.getAttribute().getId()), null, element, event.getElement());
                } finally {
                    metaValueList.remove(metaValueList.size() - 1);
                }
            }
        });
        engine.addElementListener(null, new ElementAdapter() {

            @SuppressWarnings("unchecked")
            @Override
            public void elementCreated(ElementEvent event) {
                if (event.isJournaled())
                    return;
                Element element = StandardAttributesPlugin.getElement(event.getEngine(), event.getNewElement().getQualifierId());
                if (element == null) {
                    return;
                }
                List<FunctionPersistent> list = getFunctionAttribute(engine, element);
                if (list == null)
                    return;
                Util utils = Util.getUtils(engine);
                for (FunctionPersistent fp : list) if (fp.getAutochange() != 0) {
                    Eval eval = new Eval(fp.getFunction());
                    try {
                        utils.fillAttributes(eval, engine.getQualifier(event.getNewElement().getQualifierId()), event.getNewElement(), null, null, null, true);
                        utils.fillResult(fp.getQualifierAttributeId(), eval, event.getNewElement());
                    } catch (Exception e) {
                        utils.fillResult(fp.getQualifierAttributeId(), e, event.getNewElement());
                        if (e instanceof RuntimeException)
                            throw (RuntimeException) e;
                        throw new RuntimeException(e);
                    } finally {
                    }
                }
            }

            @SuppressWarnings("unchecked")
            @Override
            public void beforeElementDeleted(final ElementEvent event) {
                if ((event.isJournaled()) || (event.getNewElement() != null))
                    return;
                Element oldElement = event.getOldElement();
                Qualifier qualifier = engine.getQualifier(oldElement.getQualifierId());
                for (Attribute attribute : qualifier.getAttributes()) {
                    removeAttributeFromCalculateInfo(engine, oldElement, attribute);
                    CalculateInfo info = engine.getCalculateInfo(oldElement.getId(), attribute.getId());
                    if (info != null) {
                        info.setFormula(null);
                        engine.setCalculateInfo(info);
                    }
                }
                List<Element> elements = engine.findElements(functionDependences.getId(), functionDependence, oldElement.getId());
                Vector<Long> qualifiers = new Vector<Long>(elements.size());
                final String start = Util.ELEMENT_PREFIX + oldElement.getId();
                for (Element element : elements) {
                    Long q = (Long) engine.getAttribute(element, functionDependenceQualifier);
                    if (qualifiers.indexOf(q) < 0) {
                        qualifiers.add(q);
                        Element qElement = StandardAttributesPlugin.getElement(engine, q.longValue());
                        List<FunctionPersistent> fpl = (List<FunctionPersistent>) engine.getAttribute(qElement, function);
                        for (FunctionPersistent fp : fpl) {
                            try {
                                Eval eval = new Eval(fp.getFunction());
                                eval.replaceValueNames(new Replacementable() {

                                    @Override
                                    public String getNewName(String oldName) {
                                        if (oldName.startsWith(start))
                                            return "NULL";
                                        return oldName;
                                    }
                                });
                                fp.setFunction(eval.toString());
                            } catch (Exception e) {
                                e.printStackTrace();
                            }
                        }
                        engine.setAttribute(qElement, function, fpl);
                    }
                // engine.deleteElement(element.getId());
                }
            }
        });
        engine.addQualifierListener(new QualifierAdapter() {

            @SuppressWarnings("unchecked")
            @Override
            public void beforeQualifierUpdated(QualifierEvent event) {
                List<Attribute> rem = new ArrayList<Attribute>();
                for (Attribute a : event.getOldQualifier().getAttributes()) {
                    if (event.getNewQualifier().getAttributes().indexOf(a) < 0)
                        rem.add(a);
                }
                if (rem.size() > 0) {
                    List<Element> list = engine.getElements(event.getOldQualifier().getId());
                    for (Attribute attribute : rem) {
                        for (Element element : list) {
                            removeAttributeFromCalculateInfo(engine, element, attribute);
                            CalculateInfo info = engine.getCalculateInfo(element.getId(), attribute.getId());
                            if (info != null) {
                                info.setFormula(null);
                                engine.setCalculateInfo(info);
                            }
                        }
                        List<Element> elements = engine.findElements(functionDependences.getId(), functionDependenceSourceAttribute, attribute.getId());
                        final String end = Util.ATTRIBUTE_PREFIX + attribute.getId();
                        for (Element element : elements) {
                            Long id = (Long) engine.getAttribute(element, functionDependence);
                            if (engine.getQualifierIdForElement(id) == event.getNewQualifier().getId()) {
                                Long qId = (Long) engine.getAttribute(element, functionDependenceQualifier);
                                Element element2 = StandardAttributesPlugin.getElement(engine, qId);
                                List<FunctionPersistent> fpl = (List<FunctionPersistent>) engine.getAttribute(element2, function);
                                for (FunctionPersistent fp : fpl) {
                                    Eval eval = new Eval(fp.getFunction());
                                    eval.replaceValueNames(new Replacementable() {

                                        @Override
                                        public String getNewName(String oldName) {
                                            if (oldName.endsWith(end)) {
                                                return "NULL";
                                            }
                                            return oldName;
                                        }
                                    });
                                    fp.setFunction(eval.toString());
                                }
                                engine.setAttribute(element2, function, fpl);
                            }
                        }
                    }
                }
            }

            @Override
            public void qualifierDeleted(QualifierEvent event) {
                Qualifier qualifier = event.getOldQualifier();
                for (Element element : engine.findElements(functionDependences.getId(), functionDependenceQualifier, qualifier.getId())) {
                    engine.deleteElement(element.getId());
                }
            }
        });
        Qualifier qq = StandardAttributesPlugin.getQualifiersQualifier(engine);
        engine.addElementAttributeListener(qq, new ElementAttributeListener() {

            @Override
            public void attributeChanged(AttributeEvent event) {
                if (event.isJournaled())
                    return;
                if (function.equals(event.getAttribute())) {
                    recalculateFunctionOfQualifier(engine, event);
                }
            }
        });
        engine.addFormulaListener(new FormulaListener() {

            @Override
            public void formulaChanged(FormulaEvent event) {
                if (event.isJournaled())
                    return;
                CalculateInfo info = event.getNewFormula();
                recalculate(engine, info);
            }
        });
    }
}