/* * Copyright (c) 2008-2016 Computer Network Information Center (CNIC), Chinese Academy of Sciences. * * This file is part of Duckling project. * * 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 cn.vlabs.umt.common.util; public final class SQLUtils { private SQLUtils(){} public static String quote(String val){ if (val!=null && val.length()>0){ StringBuffer buffer = new StringBuffer(); for (int i=0;i<val.length();i++){ char ch = val.charAt(i); switch (ch){ case '\'':buffer.append("\\'");break; case '\"':buffer.append("\\\"");break; case '\n':buffer.append("\\n");break; case '\r':buffer.append("\\r");break; case '\t':buffer.append("\\t");break; case '\\':buffer.append("\\\\");break; case '%':buffer.append("\\%");break; case '_':buffer.append("\\_");break; default: buffer.append(ch); break; } } return buffer.toString(); } return val; } }