Examples with HongsException app.hongs.HongsException used on opensource projects

Example 41 with HongsException

use of app.hongs.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 app.hongs.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 app.hongs.HongsException(0x1039, "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;
    }
    if (0 < Core.DEBUG && 4 != (4 & Core.DEBUG)) {
        CoreLogger.trace("DB: modelClass(" + mcls + ") for table(" + this.name + "." + tableName + ") has been defined, try to get it");
    }
    /**
     * 获取指定的Table类
     */
    Class cls;
    try {
        cls = Class.forName(mcls);
    } catch (ClassNotFoundException ex) {
        throw new app.hongs.HongsException(0x103d, ex);
    }
    /**
     * 获取构造器
     */
    Constructor cst;
    try {
        cst = cls.getConstructor(new Class[] { Table.class });
    } catch (NoSuchMethodException ex) {
        throw new app.hongs.HongsException(0x103e, ex);
    } catch (SecurityException ex) {
        throw new app.hongs.HongsException(0x103e, ex);
    }
    /**
     * 获取表实例
     */
    Model mobj;
    try {
        mobj = (Model) cst.newInstance(new Object[] { this.getTable(tableName) });
    } catch (InstantiationException ex) {
        throw new app.hongs.HongsException(0x103f, ex);
    } catch (IllegalAccessException ex) {
        throw new app.hongs.HongsException(0x103f, ex);
    } catch (IllegalArgumentException ex) {
        throw new app.hongs.HongsException(0x103f, ex);
    } catch (InvocationTargetException ex) {
        throw new app.hongs.HongsException(0x103f, ex);
    }
    this.modelObjects.put(tableName, mobj);
    return mobj;
}

Example 42 with HongsException

use of app.hongs.HongsException in project HongsCORE by ihongs.

the class DB method getTable.

/**
 * 通过表名获取表对象
 * 表名可以为"库名.表名"
 * @param tableName table 对象的 name
 * @return 指定表对象
 * @throws app.hongs.HongsException
 */
public Table getTable(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.indexOf('.');
    if (pos > 0) {
        String db = tableName.substring(0, pos);
        tableName = tableName.substring(pos + 1);
        return DB.getInstance(db).getTable(tableName);
    }
    if (this.tableObjects.containsKey(tableName)) {
        return this.tableObjects.get(tableName);
    }
    if (!this.tableConfigs.containsKey(tableName)) {
        throw new app.hongs.HongsException(0x1039, "Can not find config for table '" + this.name + "." + tableName + "'.");
    }
    /**
     * 读取库指定的tableClass
     * 读取表对应的tableConfig
     */
    Map<String, String> tcfg = this.tableConfigs.get(tableName);
    // this.tableConfigs.remove(tableName);
    String tcls = this.tableClass;
    String tpfx = this.tablePrefix;
    String tsfx = this.tableSuffix;
    /**
     * 就近原则:
     * 如果表配置中有设置class则采用表配置中的
     * 如果表配置中没有设置prefix则采用库配置中的
     * 如果表配置中没有设置suffix则采用库配置中的
     */
    if (tcfg.containsKey("class")) {
        tcls = tcfg.get("class");
    }
    if (!tcfg.containsKey("prefix")) {
        tcfg.put("prefix", tpfx);
    }
    if (!tcfg.containsKey("suffix")) {
        tcfg.put("suffix", tsfx);
    }
    /**
     * 如果class为空则直接使用默认的Table
     */
    if (tcls == null || tcls.length() == 0) {
        Table tobj = new Table(this, tcfg);
        this.tableObjects.put(tableName, tobj);
        return tobj;
    }
    if (0 < Core.DEBUG && 4 != (4 & Core.DEBUG)) {
        CoreLogger.trace("DB: tableClass(" + tcls + ") for table(" + this.name + "." + tableName + ") has been defined, try to get it");
    }
    /**
     * 获取指定的Table类
     */
    Class cls;
    try {
        cls = Class.forName(tcls);
    } catch (ClassNotFoundException ex) {
        throw new app.hongs.HongsException(0x103a, ex);
    }
    /**
     * 获取构造器
     */
    Constructor cst;
    try {
        cst = cls.getConstructor(new Class[] { DB.class, Map.class });
    } catch (NoSuchMethodException ex) {
        throw new app.hongs.HongsException(0x103b, ex);
    } catch (SecurityException ex) {
        throw new app.hongs.HongsException(0x103b, ex);
    }
    /**
     * 获取表实例
     */
    Table tobj;
    try {
        tobj = (Table) cst.newInstance(new Object[] { this, tcfg });
    } catch (InstantiationException ex) {
        throw new app.hongs.HongsException(0x103c, ex);
    } catch (IllegalAccessException ex) {
        throw new app.hongs.HongsException(0x103c, ex);
    } catch (IllegalArgumentException ex) {
        throw new app.hongs.HongsException(0x103c, ex);
    } catch (InvocationTargetException ex) {
        throw new app.hongs.HongsException(0x103c, ex);
    }
    this.tableObjects.put(tableName, tobj);
    return tobj;
}

Example 43 with HongsException

use of app.hongs.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 app.hongs.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 app.hongs.HongsException(0x1063, ex);
    } catch (SAXException ex) {
        throw new app.hongs.HongsException(0x1063, ex);
    } catch (IOException ex) {
        throw new app.hongs.HongsException(0x1069, ex);
    }
    return new DBConfig(doc);
}

Example 44 with HongsException

use of app.hongs.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 app.hongs.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 app.hongs.HongsException(0x1063, ex);
    } catch (SAXException ex) {
        throw new app.hongs.HongsException(0x1063, ex);
    } catch (IOException ex) {
        throw new app.hongs.HongsException(0x1067, ex);
    }
    return new DBConfig(doc);
}

Example 45 with HongsException

use of app.hongs.HongsException in project HongsCORE by ihongs.

the class Model method allow.

/**
 * 递归提取字段
 * @param table 顶层模型库表
 * @param assoc 当前关联库表
 * @param ac    当前下级关联
 * @param pc    当前层级参数
 * @param caze  当前查询用例
 * @param tn    当前表名
 * @param qn    层级名称
 * @param pn    相对层级
 * @param al    字段集合, 结构: {参数: [字段, 别名, 查询用例]}
 */
private void allow(Table table, Table assoc, Map ac, Map pc, FetchCase caze, String tn, String qn, String pn, Map al) {
    String tx, ax, az;
    tx = "`" + tn + "`.";
    if (null == qn) {
        qn = "";
        ax = "";
    } else if ("".equals(qn)) {
        qn = tn;
        ax = qn + ".";
    } else {
        qn = qn + "." + tn;
        ax = qn + ".";
    }
    if (null == pn) {
        pn = "";
        az = "";
    } else if ("".equals(pn)) {
        pn = tn;
        az = pn + ".";
    } else {
        pn = pn + "." + tn;
        az = pn + ".";
    }
    if (pc != null && pc.containsKey("fields")) {
        al.put(az + "*", new Object[] { null, null, caze });
    } else
        try {
            Map fs = assoc.getFields();
            for (Object n : fs.keySet()) {
                String f = (String) n;
                String k = f;
                String l = f;
                // 字段完整名
                f = tx + "`" + f + "`";
                // 字段别名
                l = az + /**/
                l;
                // 外部键
                k = ax + /**/
                k;
                al.put(k, new Object[] { f, l, caze });
            }
        } catch (HongsException e) {
            throw e.toExpedient();
        }
    if (ac == null || ac.isEmpty()) {
        return;
    }
    Iterator it = ac.entrySet().iterator();
    while (it.hasNext()) {
        Map.Entry et = (Map.Entry) it.next();
        Map tc = (Map) et.getValue();
        String jn = (String) tc.get("join");
        // 不是 JOIN 的重置 pn, 层级名随之改变
        if (!"INNER".equals(jn) && !"LEFT".equals(jn) && !"RIGHT".equals(jn) && !"FULL".equals(jn)) {
            jn = null;
        } else {
            jn = pn;
        }
        tn = (String) et.getKey();
        ac = (Map) tc.get("assocs");
        pc = (Map) tc.get("params");
        // 获取真实的表名, 构建关联表实例
        String rn;
        rn = (String) tc.get("tableName");
        if (rn == null || "".equals(rn)) {
            rn = (String) tc.get("name");
        }
        FetchCase caxe;
        try {
            assoc = table.db.getTable(rn);
            caxe = caze.gotJoin(tn);
        } catch (HongsException e) {
            throw e.toExpedient();
        }
        if (null == assoc) {
            throw new HongsExpedient.Common("Can not get table '" + rn + "' in DB '" + table.db.name + "'");
        }
        allow(table, assoc, ac, pc, caxe, tn, qn, jn, al);
    }
}