| /** |
| * 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 org.apache.camel.dataformat.bindy; |
| |
| import java.lang.reflect.Field; |
| import java.text.NumberFormat; |
| import java.util.HashMap; |
| import java.util.LinkedHashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.apache.camel.dataformat.bindy.util.AnnotationModelLoader; |
| import org.apache.camel.spi.PackageScanClassResolver; |
| import org.apache.camel.util.ObjectHelper; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * The {@link BindyAbstractFactory} implements what its common to all the formats |
| * supported by Camel Bindy |
| */ |
| public abstract class BindyAbstractFactory implements BindyFactory { |
| private static final transient Logger LOG = LoggerFactory.getLogger(BindyAbstractFactory.class); |
| protected final Map<String, List<Field>> annotatedLinkFields = new LinkedHashMap<String, List<Field>>(); |
| protected Set<Class<?>> models; |
| protected String crlf; |
| |
| private AnnotationModelLoader modelsLoader; |
| private String[] packageNames; |
| private String locale; |
| |
| public BindyAbstractFactory(PackageScanClassResolver resolver, String... packageNames) throws Exception { |
| this.modelsLoader = new AnnotationModelLoader(resolver); |
| this.packageNames = packageNames; |
| |
| if (LOG.isDebugEnabled()) { |
| for (String str : this.packageNames) { |
| LOG.debug("Package name: {}", str); |
| } |
| } |
| |
| initModel(); |
| } |
| |
| /** |
| * method uses to initialize the model representing the classes who will |
| * bind the data. This process will scan for classes according to the |
| * package name provided, check the annotated classes and fields. |
| * |
| * @throws Exception |
| */ |
| public void initModel() throws Exception { |
| // Find classes defined as Model |
| initModelClasses(this.packageNames); |
| } |
| |
| /** |
| * Find all the classes defined as model |
| */ |
| private void initModelClasses(String... packageNames) throws Exception { |
| models = modelsLoader.loadModels(packageNames); |
| } |
| |
| /** |
| * Find fields annotated in each class of the model |
| */ |
| public abstract void initAnnotatedFields() throws Exception; |
| |
| public abstract void bind(List<String> data, Map<String, Object> model, int line) throws Exception; |
| |
| public abstract String unbind(Map<String, Object> model) throws Exception; |
| |
| /** |
| * Link objects together |
| */ |
| public void link(Map<String, Object> model) throws Exception { |
| |
| // Iterate class by class |
| for (String link : annotatedLinkFields.keySet()) { |
| List<Field> linkFields = annotatedLinkFields.get(link); |
| |
| // Iterate through Link fields list |
| for (Field field : linkFields) { |
| |
| // Change protection for private field |
| field.setAccessible(true); |
| |
| // Retrieve linked object |
| String toClassName = field.getType().getName(); |
| Object to = model.get(toClassName); |
| |
| ObjectHelper.notNull(to, "No @link annotation has been defined for the object to link"); |
| field.set(model.get(field.getDeclaringClass().getName()), to); |
| } |
| } |
| } |
| |
| /** |
| * Factory method generating new instances of the model and adding them to a |
| * HashMap |
| * |
| * @return Map is a collection of the objects used to bind data from |
| * records, messages |
| * @throws Exception can be thrown |
| */ |
| public Map<String, Object> factory() throws Exception { |
| Map<String, Object> mapModel = new HashMap<String, Object>(); |
| |
| for (Class<?> cl : models) { |
| Object obj = ObjectHelper.newInstance(cl); |
| |
| // Add instance of the class to the Map Model |
| mapModel.put(obj.getClass().getName(), obj); |
| } |
| |
| return mapModel; |
| } |
| |
| /** |
| * Generate a unique key |
| * |
| * @param key1 The key of the section number |
| * @param key2 The key of the position of the field |
| * @return the key generated |
| */ |
| protected static Integer generateKey(Integer key1, Integer key2) { |
| String key2Formatted; |
| String keyGenerated; |
| |
| // Test added for ticket - camel-2773 |
| if ((key1 != null) && (key2 != null)) { |
| key2Formatted = getNumberFormat().format((long) key2); |
| keyGenerated = String.valueOf(key1) + key2Formatted; |
| } else { |
| throw new IllegalArgumentException("@Section and/or @KeyValuePairDataField have not been defined"); |
| } |
| |
| return Integer.valueOf(keyGenerated); |
| } |
| |
| private static NumberFormat getNumberFormat() { |
| // Get instance of NumberFormat |
| NumberFormat nf = NumberFormat.getInstance(); |
| |
| // set max number of digits to 3 (thousands) |
| nf.setMaximumIntegerDigits(3); |
| nf.setMinimumIntegerDigits(3); |
| |
| return nf; |
| } |
| |
| public static Object getDefaultValueForPrimitive(Class<?> clazz) throws Exception { |
| if (clazz == byte.class) { |
| return Byte.MIN_VALUE; |
| } else if (clazz == short.class) { |
| return Short.MIN_VALUE; |
| } else if (clazz == int.class) { |
| return Integer.MIN_VALUE; |
| } else if (clazz == long.class) { |
| return Long.MIN_VALUE; |
| } else if (clazz == float.class) { |
| return Float.MIN_VALUE; |
| } else if (clazz == double.class) { |
| return Double.MIN_VALUE; |
| } else if (clazz == char.class) { |
| return Character.MIN_VALUE; |
| } else if (clazz == boolean.class) { |
| return false; |
| } else { |
| return null; |
| } |
| |
| } |
| |
| /** |
| * Find the carriage return set |
| */ |
| public String getCarriageReturn() { |
| return crlf; |
| } |
| |
| /** |
| * Format the object into a string according to the format rue defined |
| */ |
| @SuppressWarnings("unchecked") |
| public String formatString(Format format, Object value) throws Exception { |
| String strValue = ""; |
| |
| if (value != null) { |
| try { |
| strValue = format.format(value); |
| } catch (Exception e) { |
| throw new IllegalArgumentException("Formatting error detected for the value: " + value, e); |
| } |
| } |
| |
| return strValue; |
| } |
| |
| public String getLocale() { |
| return locale; |
| } |
| |
| public void setLocale(String locale) { |
| this.locale = locale; |
| } |
| } |