com.iih5.smartorm.kit.SqlXmlKit.java Source code

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Here is the source code for com.iih5.smartorm.kit.SqlXmlKit.java

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/**
 * Copyright (c) 2011-2016, James Zhan  (jfinal@126.com).
 *
 * 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 com.iih5.smartorm.kit;

import org.apache.log4j.Logger;
import org.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;

import java.io.File;
import java.net.URL;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * xml?sql??
 */
public class SqlXmlKit {
    // map<className,<method,sql>>
    private static HashMap<String, Map<String, String>> resourcesMap = new HashMap<String, Map<String, String>>();

    public SqlXmlKit() {
        try {
            URL url = Thread.currentThread().getContextClassLoader().getResource("sql");
            File dataDir = new File(url.toURI());
            init(dataDir);
        } catch (Exception e) {
            e.printStackTrace();
            Logger.getLogger(SqlXmlKit.class).error("?sql xml ");
        }
    }

    public SqlXmlKit(String path) {
        init(new File(path));
    }

    private void init(File dataDir) {
        try {
            List<File> files = new ArrayList<File>();
            listDirectory(dataDir, files);
            for (File file : files) {
                if (file.getName().contains(".xml")) {
                    SAXReader reader = new SAXReader();
                    Document document = reader.read(file);
                    Element xmlRoot = document.getRootElement();
                    for (Object e : xmlRoot.elements("class")) {
                        Map<String, String> methods = new HashMap<String, String>();
                        Element clasz = (Element) e;
                        for (Object ebj : clasz.elements("sql")) {
                            Element sql = (Element) ebj;
                            methods.put(sql.attribute("method").getValue(), sql.getText());
                        }
                        resourcesMap.put(clasz.attributeValue("name"), methods);
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     * ?????
     * @param path
     * @param files
     */
    private void listDirectory(File path, List<File> files) {
        if (path.exists()) {
            if (path.isFile()) {
                files.add(path);
            } else {
                File[] list = path.listFiles();
                for (int i = 0; i < list.length; i++) {
                    listDirectory(list[i], files);
                }
            }
        }
    }

    /**
     * ?sql?
     * @param classPath package
     * @param methodName ??
     * @return ?sql?
     */
    public static String getSQL(String classPath, String methodName) {
        Map<String, String> m = resourcesMap.get(classPath);
        return m.get(methodName);
    }

    /**
     * ?sql?
     * @return
     */
    public static String getCurrentSql() {
        //?
        String clazz = Thread.currentThread().getStackTrace()[2].getClassName();
        //?getSQL
        String method = Thread.currentThread().getStackTrace()[2].getMethodName();
        return SpringKit.getApplicationContext().getBean(SqlXmlKit.class).getSQL(clazz, method);
    }
}