Examples with ReflectUtil org.eweb4j.util.ReflectUtil used on opensource projects

Example 41 with ReflectUtil

use of org.eweb4j.util.ReflectUtil in project eweb4j-framework by laiweiwei.

the class UpdateSqlCreator method makeSQL.

private Sql makeSQL(T t, String[] fields) throws SqlCreateException {
    Sql sql = new Sql();
    Class<?> clazz = t.getClass();
    //if fields is empty
    if (fields == null || fields.length == 0) {
        fields = ORMConfigBeanUtil.getFields(clazz);
    }
    String table = ORMConfigBeanUtil.getTable(clazz, false);
    StringBuilder values = new StringBuilder();
    ReflectUtil ru = new ReflectUtil(t);
    String[] columns = ORMConfigBeanUtil.getColumns(clazz, fields);
    String idColumn = ORMConfigBeanUtil.getIdColumn(clazz);
    String idField = ORMConfigBeanUtil.getIdField(clazz);
    Method idGetter = ru.getGetter(idField);
    if (idGetter == null)
        throw new SqlCreateException("can not find id getter.");
    Object idValue = null;
    try {
        idValue = idGetter.invoke(t);
    } catch (Exception e) {
        throw new SqlCreateException(idGetter + " invoke exception " + e.toString(), e);
    }
    for (int i = 0; i < fields.length; i++) {
        String field = fields[i];
        String column = columns[i];
        Method getter = ru.getGetter(field);
        if (getter == null)
            continue;
        try {
            Object _value = getter.invoke(t);
            if (_value == null)
                continue;
            Object value = null;
            if (ClassUtil.isPojo(_value.getClass())) {
                Field f = ru.getField(field);
                OneToOne oneAnn = getter.getAnnotation(OneToOne.class);
                if (oneAnn == null)
                    oneAnn = f.getAnnotation(OneToOne.class);
                ManyToOne manyToOneAnn = null;
                if (oneAnn == null) {
                    manyToOneAnn = getter.getAnnotation(ManyToOne.class);
                    if (manyToOneAnn == null)
                        manyToOneAnn = f.getAnnotation(ManyToOne.class);
                }
                if (oneAnn != null || manyToOneAnn != null) {
                    JoinColumn joinColAnn = getter.getAnnotation(JoinColumn.class);
                    if (joinColAnn == null)
                        joinColAnn = f.getAnnotation(JoinColumn.class);
                    if (joinColAnn != null && joinColAnn.referencedColumnName().trim().length() > 0) {
                        String refCol = joinColAnn.referencedColumnName();
                        String refField = ORMConfigBeanUtil.getField(_value.getClass(), refCol);
                        ReflectUtil tarRu = new ReflectUtil(_value);
                        Method tarFKGetter = tarRu.getGetter(refField);
                        value = tarFKGetter.invoke(_value);
                    } else {
                        ReflectUtil tarRu = new ReflectUtil(_value);
                        String tarFKField = ORMConfigBeanUtil.getIdField(_value.getClass());
                        if (tarFKField != null) {
                            Method tarFKGetter = tarRu.getGetter(tarFKField);
                            value = tarFKGetter.invoke(_value);
                        }
                    }
                }
                if (value == null)
                    continue;
            } else {
                value = _value;
            }
            if (values.length() > 0)
                values.append(", ");
            //				values.append(column).append(" = '").append(value).append("'");
            values.append(column).append(" = ? ");
            sql.args.add(value);
        } catch (Exception e) {
            throw new SqlCreateException(idGetter + " invoke exception " + e.toString(), e);
        }
    }
    //		String condition = new StringBuilder().append(idColumn).append(" = ").append("'").append(idValue).append("'").toString();
    String condition = new StringBuilder().append(idColumn).append(" = ? ").toString();
    sql.args.add(idValue);
    sql.sql = String.format("UPDATE %s SET %s WHERE %s ;", table, values, condition);
    return sql;
}

Example 42 with ReflectUtil

use of org.eweb4j.util.ReflectUtil in project eweb4j-framework by laiweiwei.

the class ManyToManyDAO method delete.

/**
	 * 多对多级联删除 
	 * 1.如果主对象不存在与数据库，不处理 
	 * 2.否则，检查当前主对象中的关联对象，如果关联对象为空，则删除所有与主对象有关的关联关系。
	 * 3.如果当前主对象中含有关联对象，则删除这些关联对象与主对象的关系
	 * 4.不会删除主对象
	 * 
	 */
public void delete() throws DAOException {
    if (this.fields == null || this.fields.size() == 0)
        return;
    // "delete from {relTable} WHERE {from} = {fromRefVal} ;"
    String format = "delete from %s WHERE %s = ? ";
    for (Field f : fields) {
        Method tarGetter = ru.getGetter(f.getName());
        if (tarGetter == null)
            continue;
        ManyToMany ann = tarGetter.getAnnotation(ManyToMany.class);
        if (ann == null) {
            ann = f.getAnnotation(ManyToMany.class);
            if (ann == null)
                continue;
        }
        JoinTable join = tarGetter.getAnnotation(JoinTable.class);
        if (join == null) {
            join = f.getAnnotation(JoinTable.class);
            if (join == null)
                continue;
        }
        JoinColumn[] froms = join.joinColumns();
        if (froms == null || froms.length == 0)
            continue;
        JoinColumn[] tos = join.inverseJoinColumns();
        if (tos == null || tos.length == 0)
            continue;
        String relTable = join.name();
        String from = froms[0].name();
        String fromRefCol = froms[0].referencedColumnName();
        if (fromRefCol == null || fromRefCol.trim().length() == 0)
            fromRefCol = ORMConfigBeanUtil.getIdColumn(t);
        String fromRefField = ORMConfigBeanUtil.getField(t.getClass(), fromRefCol);
        Method fromRefFieldGetter = ru.getGetter(fromRefField);
        if (fromRefFieldGetter == null)
            throw new DAOException("can not find the 'from ref field -> " + fromRefField + "' of " + t.getClass() + " 's getter method", null);
        String fromRefVal = null;
        try {
            Object _obj = fromRefFieldGetter.invoke(t);
            if (_obj == null)
                continue;
            fromRefVal = String.valueOf(_obj);
        } catch (Exception e) {
            throw new DAOException("can not get the from ref val of " + t.getClass(), e);
        }
        List<?> tarList = null;
        try {
            tarList = (List<?>) tarGetter.invoke(t);
        } catch (Exception e) {
            throw new DAOException(tarGetter + " invoke exception, can not get the " + f.getName() + " objs ", e);
        }
        if (tarList == null || tarList.size() == 0) {
            String sql = String.format(format, relTable, from);
            // 删除所有关联记录
            DAOFactory.getUpdateDAO(dsName).updateBySQLWithArgs(sql, fromRefVal);
        } else {
            // 删除指定关联的记录
            Class<?> tarClass = ann.targetEntity();
            if (void.class.isAssignableFrom(tarClass)) {
                tarClass = ClassUtil.getGenericType(f);
            }
            String to = tos[0].name();
            String toRefCol = tos[0].referencedColumnName();
            if (toRefCol == null || toRefCol.trim().length() == 0)
                toRefCol = ORMConfigBeanUtil.getIdColumn(tarClass);
            String toRefField = ORMConfigBeanUtil.getField(tarClass, toRefCol);
            // "delete from {relTable} where {from} = {fromRefVal} and to = {toRefVal}"
            String _format = "delete from %s where %s = ? and %s = ?";
            for (int i = 0; i < tarList.size(); i++) {
                Object tarObj = tarList.get(i);
                if (tarObj == null)
                    continue;
                ReflectUtil tarRu = new ReflectUtil(tarObj);
                Method toRefFieldGetter = tarRu.getGetter(toRefField);
                if (toRefFieldGetter == null)
                    throw new DAOException("can not find the 'to ref field -> " + toRefField + "' of " + tarClass + " 's getter method", null);
                String toRefVal = null;
                try {
                    Object _obj = toRefFieldGetter.invoke(tarObj);
                    if (_obj == null)
                        continue;
                    toRefVal = String.valueOf(_obj);
                } catch (Exception e) {
                    throw new DAOException("can not get the to ref val of " + tarClass, e);
                }
                if (DAOFactory.getSelectDAO(dsName).selectOne(tarClass, new String[] { toRefField }, new String[] { toRefVal }) == null)
                    continue;
                String _sql = String.format(_format, relTable, from, to);
                DAOFactory.getUpdateDAO(dsName).updateBySQLWithArgs(_sql, fromRefVal, toRefVal);
            }
        }
    }
}

Example 43 with ReflectUtil

use of org.eweb4j.util.ReflectUtil in project eweb4j-framework by laiweiwei.

the class ParamUtil method injectParam.

public static void injectParam(Context context, ReflectUtil ru, String startName) throws Exception {
    Hashtable<String, Object> hasPojo = new Hashtable<String, Object>();
    Map<String, String[]> paramMap = context.getQueryParamMap();
    paramForeach: for (Entry<String, String[]> entry : paramMap.entrySet()) {
        String paramName = entry.getKey();
        String[] paramValue = entry.getValue();
        if (paramValue == null || paramValue.length == 0)
            continue;
        Method setter = null;
        String[] pojoParamNames = paramName.split("\\.");
        if (pojoParamNames.length > 1) {
            Object lastPojo = ru.getObject();
            if (startName != null && startName.trim().length() > 0) {
                if (!pojoParamNames[0].equals(startName))
                    continue;
            }
            int lastIndex = pojoParamNames.length - 1;
            for (int i = 0; i < lastIndex; i++) {
                if (startName != null && startName.trim().length() > 0) {
                    if ((i + 1) == lastIndex)
                        break;
                    lastPojo = getLastPojo(lastPojo, pojoParamNames[i + 1], hasPojo);
                } else {
                    lastPojo = getLastPojo(lastPojo, pojoParamNames[i], hasPojo);
                }
                if (lastPojo == null)
                    continue paramForeach;
            }
            String _paramName = pojoParamNames[lastIndex];
            if (Map.class.isAssignableFrom(lastPojo.getClass())) {
                Map<String, Object> map = (HashMap<String, Object>) lastPojo;
                if (paramValue.length <= 1)
                    map.put(_paramName, paramValue[0]);
                else
                    map.put(_paramName, paramValue);
                lastPojo = map;
            }
            ReflectUtil lpRu = new ReflectUtil(lastPojo);
            setter = lpRu.getSetter(_paramName);
            if (setter == null)
                continue;
            invokeSetter(lastPojo, paramValue, setter);
        } else {
            setter = ru.getSetter(paramName);
            if (setter == null)
                continue;
            invokeSetter(ru.getObject(), paramValue, setter);
        }
    }
    injectFile(context, ru, startName);
}

Example 44 with ReflectUtil

use of org.eweb4j.util.ReflectUtil in project eweb4j-framework by laiweiwei.

the class InterExecution method doIntercept.

private void doIntercept(InterConfigBean inter) throws Exception {
    Object interceptor = null;
    if ("singleton".equalsIgnoreCase(inter.getScope()))
        interceptor = SingleBeanCache.get(inter.getClazz());
    if (interceptor == null) {
        interceptor = Thread.currentThread().getContextClassLoader().loadClass(inter.getClazz()).newInstance();
        if ("singleton".equalsIgnoreCase(inter.getScope()))
            SingleBeanCache.add(inter.getClazz(), interceptor);
    }
    ReflectUtil ru = new ReflectUtil(interceptor);
    Method intercept = ru.getMethod(inter.getMethod());
    if (intercept == null) {
        this.error = null;
        return;
    }
    Method setter = ru.getSetter("Context");
    if (setter != null)
        setter.invoke(interceptor, this.context);
    Object err = null;
    Class<?>[] paramCls = intercept.getParameterTypes();
    if (paramCls.length == 1 && paramCls[0].isAssignableFrom(Context.class))
        err = intercept.invoke(interceptor, this.context);
    else
        err = intercept.invoke(interceptor);
    if (err == null) {
        this.error = null;
        return;
    }
    this.error = String.valueOf(err);
}

Example 45 with ReflectUtil

use of org.eweb4j.util.ReflectUtil in project eweb4j-framework by laiweiwei.

the class ActionUrlUtil method pojoFieldToUrlParam.

private static void pojoFieldToUrlParam(List<String> paramNames, List<Class<?>> paramClasses, Class<?> cls) throws InstantiationException, IllegalAccessException {
    ReflectUtil _ru = new ReflectUtil(cls);
    String[] fieldNames = _ru.getFieldsName();
    Field[] fields = _ru.getFields();
    paramNames.addAll(Arrays.asList(fieldNames));
    for (java.lang.reflect.Field f : fields) {
        paramClasses.add(f.getType());
    }
}