Examples with OneToMany org.apache.camel.dataformat.bindy.annotation.OneToMany used on opensource projects

Example 1 with OneToMany

use of org.apache.camel.dataformat.bindy.annotation.OneToMany in project camel by apache.

the class BindyCsvFactory method generateCsvPositionMap.

/**
     * Generate a table containing the data formatted and sorted with their position/offset
     * If the model is Ordered than a key is created combining the annotation @Section and Position of the field
     * If a relation @OneToMany is defined, than we iterate recursively through this function
     * The result is placed in the Map<Integer, List> results
     */
private void generateCsvPositionMap(Class<?> clazz, Object obj, Map<Integer, List<String>> results) throws Exception {
    String result = "";
    for (Field field : clazz.getDeclaredFields()) {
        field.setAccessible(true);
        DataField datafield = field.getAnnotation(DataField.class);
        if (datafield != null) {
            if (obj != null) {
                // Retrieve the format, pattern and precision associated to the type
                Class<?> type = field.getType();
                // Create format
                FormattingOptions formattingOptions = ConverterUtils.convert(datafield, field.getType(), field.getAnnotation(BindyConverter.class), getLocale());
                Format<?> format = formatFactory.getFormat(formattingOptions);
                // Get field value
                Object value = field.get(obj);
                // If the field value is empty, populate it with the default value
                if (ObjectHelper.isNotEmpty(datafield.defaultValue()) && ObjectHelper.isEmpty(value)) {
                    value = datafield.defaultValue();
                }
                result = formatString(format, value);
                if (datafield.trim()) {
                    result = result.trim();
                }
                if (datafield.clip() && result.length() > datafield.length()) {
                    result = result.substring(0, datafield.length());
                }
                if (LOG.isDebugEnabled()) {
                    LOG.debug("Value to be formatted: {}, position: {}, and its formatted value: {}", new Object[] { value, datafield.pos(), result });
                }
            } else {
                result = "";
            }
            Integer key;
            if (isMessageOrdered() && obj != null) {
                // Generate a key using the number of the section
                // and the position of the field
                Integer key1 = sections.get(obj.getClass().getName());
                Integer key2 = datafield.position();
                Integer keyGenerated = generateKey(key1, key2);
                if (LOG.isDebugEnabled()) {
                    LOG.debug("Key generated: {}, for section: {}", String.valueOf(keyGenerated), key1);
                }
                key = keyGenerated;
            } else {
                key = datafield.pos();
            }
            if (!results.containsKey(key)) {
                List<String> list = new LinkedList<String>();
                list.add(result);
                results.put(key, list);
            } else {
                List<String> list = results.get(key);
                list.add(result);
            }
        }
        OneToMany oneToMany = field.getAnnotation(OneToMany.class);
        if (oneToMany != null) {
            // Set global variable
            // Will be used during generation of CSV
            isOneToMany = true;
            List<?> list = (List<?>) field.get(obj);
            if (list != null) {
                Iterator<?> it = list.iterator();
                while (it.hasNext()) {
                    Object target = it.next();
                    generateCsvPositionMap(target.getClass(), target, results);
                }
            } else {
                // Call this function to add empty value
                // in the table
                generateCsvPositionMap(field.getClass(), null, results);
            }
        }
    }
}

Example 2 with OneToMany

use of org.apache.camel.dataformat.bindy.annotation.OneToMany in project camel by apache.

the class BindyKeyValuePairFactory method generateModelFromKeyValueMap.

private void generateModelFromKeyValueMap(Class<?> clazz, Object obj, Map<Integer, List<String>> results, int line, Map<String, List<Object>> lists) throws Exception {
    for (Field field : clazz.getDeclaredFields()) {
        field.setAccessible(true);
        KeyValuePairField keyValuePairField = field.getAnnotation(KeyValuePairField.class);
        if (keyValuePairField != null) {
            // Key
            int key = keyValuePairField.tag();
            // Get Value
            List<String> values = results.get(key);
            String value = null;
            // we don't received data
            if (values == null) {
                /*
                     * The relation is one to one So we check if we are in a
                     * target class and if the field is mandatory
                     */
                if (obj != null) {
                    // Check mandatory field
                    if (keyValuePairField.required()) {
                        throw new IllegalArgumentException("The mandatory key/tag : " + key + " has not been defined !");
                    }
                    Object result = getDefaultValueForPrimitive(field.getType());
                    try {
                        field.set(obj, result);
                    } catch (Exception e) {
                        throw new IllegalArgumentException("Setting of field " + field + " failed for object : " + obj + " and result : " + result);
                    }
                } else {
                    /*
                         * The relation is one to many So, we create an object
                         * with empty fields and we don't check if the fields
                         * are mandatory
                         */
                    // Get List from Map
                    List<Object> l = lists.get(clazz.getName());
                    if (l != null) {
                        // BigIntegerFormatFactory if object exist
                        if (!l.isEmpty()) {
                            obj = l.get(0);
                        } else {
                            obj = clazz.newInstance();
                        }
                        Object result = getDefaultValueForPrimitive(field.getType());
                        try {
                            field.set(obj, result);
                        } catch (Exception e) {
                            throw new IllegalArgumentException("Setting of field " + field + " failed for object : " + obj + " and result : " + result);
                        }
                        // Add object created to the list
                        if (!l.isEmpty()) {
                            l.set(0, obj);
                        } else {
                            l.add(0, obj);
                        }
                        // and to the Map
                        lists.put(clazz.getName(), l);
                        // Reset obj to null
                        obj = null;
                    } else {
                        throw new IllegalArgumentException("The list of values is empty for the following key : " + key + " defined in the class : " + clazz.getName());
                    }
                }
            // end of test if obj != null
            } else {
                // Data have been retrieved from message
                if (values.size() >= 1) {
                    if (obj != null) {
                        // Relation OneToOne
                        value = values.get(0);
                        Object result = null;
                        if (value != null) {
                            // Create format object to format the field
                            FormattingOptions formattingOptions = ConverterUtils.convert(keyValuePairField, field.getType(), field.getAnnotation(BindyConverter.class), getLocale());
                            Format<?> format = formatFactory.getFormat(formattingOptions);
                            // format the value of the key received
                            result = formatField(format, value, key, line);
                            LOG.debug("Value formated : {}", result);
                        } else {
                            result = getDefaultValueForPrimitive(field.getType());
                        }
                        try {
                            field.set(obj, result);
                        } catch (Exception e) {
                            throw new IllegalArgumentException("Setting of field " + field + " failed for object : " + obj + " and result : " + result);
                        }
                    } else {
                        // Get List from Map
                        List<Object> l = lists.get(clazz.getName());
                        if (l != null) {
                            // Relation OneToMany
                            for (int i = 0; i < values.size(); i++) {
                                // BigIntegerFormatFactory if object exist
                                if ((!l.isEmpty()) && (l.size() > i)) {
                                    obj = l.get(i);
                                } else {
                                    obj = clazz.newInstance();
                                }
                                value = values.get(i);
                                // Create format object to format the field
                                FormattingOptions formattingOptions = ConverterUtils.convert(keyValuePairField, field.getType(), field.getAnnotation(BindyConverter.class), getLocale());
                                Format<?> format = formatFactory.getFormat(formattingOptions);
                                // format the value of the key received
                                Object result = formatField(format, value, key, line);
                                LOG.debug("Value formated : {}", result);
                                try {
                                    if (value != null) {
                                        field.set(obj, result);
                                    } else {
                                        field.set(obj, getDefaultValueForPrimitive(field.getType()));
                                    }
                                } catch (Exception e) {
                                    throw new IllegalArgumentException("Setting of field " + field + " failed for object: " + obj + " and result: " + result);
                                }
                                // Add object created to the list
                                if ((!l.isEmpty()) && (l.size() > i)) {
                                    l.set(i, obj);
                                } else {
                                    l.add(i, obj);
                                }
                                // and to the Map
                                lists.put(clazz.getName(), l);
                                // Reset obj to null
                                obj = null;
                            }
                        } else {
                            throw new IllegalArgumentException("The list of values is empty for the following key: " + key + " defined in the class: " + clazz.getName());
                        }
                    }
                } else {
                    // No values found from message
                    Object result = getDefaultValueForPrimitive(field.getType());
                    try {
                        field.set(obj, result);
                    } catch (Exception e) {
                        throw new IllegalArgumentException("Setting of field " + field + " failed for object: " + obj + " and result: " + result);
                    }
                }
            }
        }
        OneToMany oneToMany = field.getAnnotation(OneToMany.class);
        if (oneToMany != null) {
            String targetClass = oneToMany.mappedTo();
            if (!targetClass.equals("")) {
                // Class cl = Class.forName(targetClass); Does not work in
                // OSGI when class is defined in another bundle
                Class<?> cl = null;
                try {
                    cl = Thread.currentThread().getContextClassLoader().loadClass(targetClass);
                } catch (ClassNotFoundException e) {
                    cl = getClass().getClassLoader().loadClass(targetClass);
                }
                if (!lists.containsKey(cl.getName())) {
                    lists.put(cl.getName(), new ArrayList<Object>());
                }
                generateModelFromKeyValueMap(cl, null, results, line, lists);
                // Add list of objects
                field.set(obj, lists.get(cl.getName()));
            } else {
                throw new IllegalArgumentException("No target class has been defined in @OneToMany annotation");
            }
        }
    }
}