Examples with HongsException io.github.ihongs.HongsException used on opensource projects

Example 26 with HongsException

use of io.github.ihongs.HongsException in project HongsCORE by ihongs.

the class DB method getModel.

/**
 * 通过表名获取表模型
 * 表名可以为"库名.表名"
 * @param tableName table 对象的 name
 * @return 指定表模型
 * @throws io.github.ihongs.HongsException
 */
public Model getModel(String tableName) throws HongsException {
    /**
     * 表名可以是"数据库.表名"
     * 用于引用另一个库中的表
     */
    int pos = tableName.lastIndexOf('.');
    if (pos > 0) {
        String db = tableName.substring(0, pos);
        tableName = tableName.substring(pos + 1);
        return DB.getInstance(db).getModel(tableName);
    }
    if (this.modelObjects.containsKey(tableName)) {
        return this.modelObjects.get(tableName);
    }
    if (!this.tableConfigs.containsKey(tableName)) {
        throw new HongsException(1026, "Can not find config for table '" + this.name + "." + tableName + "'.");
    }
    /**
     * 读取库指定的modelClass
     */
    Map<String, String> tcfg = this.tableConfigs.get(tableName);
    // this.tableConfigs.remove(tableName);
    String mcls = this.modelClass;
    /**
     * 就近原则:
     * 如果表配置中有设置model则采用表配置中的
     */
    if (tcfg.containsKey("model")) {
        mcls = tcfg.get("model");
    }
    /**
     * 如果class为空则直接使用默认的Table
     */
    if (mcls == null || mcls.length() == 0) {
        Model mobj = new Model(this.getTable(tableName));
        this.modelObjects.put(tableName, mobj);
        return mobj;
    }
    CoreLogger.trace("DB: modelClass({}) for table({}.{}) has been defined, try to get it", mcls, this.name, tableName);
    /**
     * 获取指定的Table类
     */
    Class cls;
    try {
        cls = Class.forName(mcls);
    } catch (ClassNotFoundException ex) {
        throw new HongsException(1037, ex);
    }
    /**
     * 获取构造器
     */
    Constructor cst;
    try {
        cst = cls.getConstructor(new Class[] { Table.class });
    } catch (NoSuchMethodException ex) {
        throw new HongsException(1038, ex);
    } catch (SecurityException ex) {
        throw new HongsException(1038, ex);
    }
    /**
     * 获取表实例
     */
    Model mobj;
    try {
        mobj = (Model) cst.newInstance(new Object[] { this.getTable(tableName) });
    } catch (InstantiationException ex) {
        throw new HongsException(1039, ex);
    } catch (IllegalAccessException ex) {
        throw new HongsException(1039, ex);
    } catch (IllegalArgumentException ex) {
        throw new HongsException(1039, ex);
    } catch (InvocationTargetException ex) {
        throw new HongsException(1039, ex);
    }
    this.modelObjects.put(tableName, mobj);
    return mobj;
}

Example 27 with HongsException

use of io.github.ihongs.HongsException in project HongsCORE by ihongs.

the class DBConfig method parseByFile.

/**
 * 根据文件解析配置
 *
 * @param df
 * @return 配置对象
 * @throws io.github.ihongs.HongsException
 */
public static DBConfig parseByFile(File df) throws HongsException {
    Document doc;
    try {
        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
        DocumentBuilder dbn = dbf.newDocumentBuilder();
        doc = dbn.parse(df);
    } catch (ParserConfigurationException ex) {
        throw new HongsException(1062, ex);
    } catch (SAXException ex) {
        throw new HongsException(1062, ex);
    } catch (IOException ex) {
        throw new HongsException(1064, ex);
    }
    return new DBConfig(doc);
}

Example 28 with HongsException

use of io.github.ihongs.HongsException in project HongsCORE by ihongs.

the class DBConfig method parseBySource.

/**
 * 根据输入流解析配置
 *
 * @param ds
 * @return 配置对象
 * @throws io.github.ihongs.HongsException
 */
public static DBConfig parseBySource(InputSource ds) throws HongsException {
    Document doc;
    try {
        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
        DocumentBuilder dbn = dbf.newDocumentBuilder();
        doc = dbn.parse(ds);
    } catch (ParserConfigurationException ex) {
        throw new HongsException(1062, ex);
    } catch (SAXException ex) {
        throw new HongsException(1062, ex);
    } catch (IOException ex) {
        throw new HongsException(1065, ex);
    }
    return new DBConfig(doc);
}

Example 29 with HongsException

use of io.github.ihongs.HongsException in project HongsCORE by ihongs.

the class DBConfig method imports.

@Override
protected void imports() throws HongsException {
    InputStream is;
    String fn;
    DBConfig cp;
    try {
        fn = Core.CONF_PATH + "/" + name + Cnst.DB_EXT + ".xml";
        is = new FileInputStream(fn);
    } catch (FileNotFoundException ex) {
        fn = name.contains(".") || name.contains("/") ? name + Cnst.DB_EXT + ".xml" : Cnst.CONF_PACK + "/" + name + Cnst.DB_EXT + ".xml";
        is = this.getClass().getClassLoader().getResourceAsStream(fn);
        if (is == null) {
            throw new HongsExemption(826, "Can not find the config file '" + name + Cnst.DB_EXT + ".xml'.");
        }
    }
    try {
        cp = parseByStream(is);
    } finally {
        try {
            is.close();
        } catch (IOException ex) {
            throw new HongsException(ex);
        }
    }
    this.link = cp.link;
    this.source = cp.source;
    this.origin = cp.origin;
    this.dbClass = cp.dbClass;
    this.tableClass = cp.tableClass;
    this.modelClass = cp.modelClass;
    this.tablePrefix = cp.tablePrefix;
    this.tableSuffix = cp.tableSuffix;
    this.tableConfigs = cp.tableConfigs;
}

Example 30 with HongsException

use of io.github.ihongs.HongsException in project HongsCORE by ihongs.

the class DBConfig method parseByStream.

/**
 * 根据输入流解析配置
 *
 * @param ds
 * @return 配置对象
 * @throws io.github.ihongs.HongsException
 */
public static DBConfig parseByStream(InputStream ds) throws HongsException {
    Document doc;
    try {
        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
        DocumentBuilder dbn = dbf.newDocumentBuilder();
        doc = dbn.parse(ds);
    } catch (ParserConfigurationException ex) {
        throw new HongsException(1062, ex);
    } catch (SAXException ex) {
        throw new HongsException(1062, ex);
    } catch (IOException ex) {
        throw new HongsException(1065, ex);
    }
    return new DBConfig(doc);
}