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Copy pathMapping.java
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135 lines (120 loc) · 5.73 KB
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/*******************************************************************************
* Copyright (c) 2013, 2025 James M. ZHOU
*
* Licensed 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.tinystruct.data;
import org.tinystruct.ApplicationException;
import org.tinystruct.ApplicationRuntimeException;
import org.tinystruct.data.component.Field;
import org.tinystruct.data.component.FieldInfo;
import org.tinystruct.dom.Attribute;
import org.tinystruct.dom.Document;
import org.tinystruct.dom.Element;
import java.io.IOException;
import java.io.InputStream;
import java.util.Iterator;
import java.util.List;
public class Mapping {
private static final String PROPERTY = "property";
private static final String NAME = "name";
private static final String LENGTH = "length";
private static final String COLUMN = "column";
private static final String TYPE = "type";
private static final String GENERATE = "generate";
private static final String INCREMENT = "increment";
private static final String ID = "id";
public static Field getMappedField(Data data) throws ApplicationException {
String className = data.getClassName();
String mapFile = data.getClassPath() + className + ".map.xml";
MappingManager manager = MappingManager.getInstance();
Document document;
if (manager.get(className) == null) {
synchronized (Mapping.class) {
if (manager.get(className) == null) {
document = new Document();
try (InputStream in = data.getClass().getResourceAsStream("/" + mapFile)) {
boolean loaded = document.load(in);
if (!loaded) {
throw new ApplicationRuntimeException("Failed to load mapping file: " + mapFile);
}
manager.set(className, document);
} catch (IOException e) {
throw new ApplicationRuntimeException("Failed to load mapping file: " + mapFile + ", Error: " + e.getMessage(), e);
}
} else
document = manager.get(className);
}
} else {
document = manager.get(className);
}
Iterator<Element> iterator = document.getRoot().getElementsByTagName("class").iterator();
List<Element> list = null;
Element currentElement;
while (iterator.hasNext()) {
currentElement = iterator.next();
if (className.equalsIgnoreCase(
currentElement.getAttribute(NAME))) {
switch (data.getRepository().getType().ordinal()) {
case 0: // MySQL
data.setTableName("`"
+ currentElement.getAttribute("table") + "`");
break;
case 1: // SQL Server
case 2: // SQLite
data.setTableName("["
+ currentElement.getAttribute("table") + "]");
break;
default:
data.setTableName(currentElement.getAttribute("table"));
break;
}
list = currentElement.getChildNodes();
break;
}
}
Field field = new Field();
if (list != null && !list.isEmpty()) {
iterator = list.iterator();
FieldInfo fieldInfo;
while (iterator.hasNext()) {
currentElement = iterator.next();
if (currentElement.getName().equalsIgnoreCase(ID)) {
fieldInfo = new FieldInfo();
fieldInfo.append(ID, currentElement.getAttribute(NAME));
fieldInfo.append(NAME, currentElement.getAttribute(NAME));
fieldInfo.append(INCREMENT, currentElement.getAttribute(INCREMENT));
fieldInfo.append(GENERATE, currentElement.getAttribute(GENERATE));
fieldInfo.append(TYPE, currentElement.getAttribute(TYPE));
fieldInfo.append(COLUMN, currentElement.getAttribute(COLUMN));
fieldInfo.append(LENGTH, currentElement.getAttribute(LENGTH));
if (Boolean.parseBoolean(currentElement.getAttribute(GENERATE)) && !currentElement.getAttribute(TYPE).toLowerCase().startsWith("int")) {
data.setId(java.util.UUID.randomUUID().toString());
fieldInfo.append("value", data.getId());
}
field.append(fieldInfo.getName(), fieldInfo);
}
if (currentElement.getName().equalsIgnoreCase(PROPERTY)) {
fieldInfo = new FieldInfo();
List<Attribute> attributes = currentElement.getAttributes();
for (Attribute attribute : attributes) {
fieldInfo.append(attribute.name,
attribute.value);
}
field.append(fieldInfo.getName(), fieldInfo);
}
}
}
return field;
}
}