| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.skywalking.apm.plugin.jdbc; |
| |
| public class PreparedStatementParameterBuilder { |
| private static final String EMPTY_LIST = "[]"; |
| private Object[] parameters; |
| private Integer maxIndex; |
| private int maxLength = 0; |
| |
| public PreparedStatementParameterBuilder setParameters(Object[] parameters) { |
| this.parameters = parameters; |
| return this; |
| } |
| |
| public PreparedStatementParameterBuilder setMaxIndex(int maxIndex) { |
| this.maxIndex = maxIndex; |
| return this; |
| } |
| |
| public PreparedStatementParameterBuilder setMaxLength(int maxLength) { |
| this.maxLength = maxLength; |
| return this; |
| } |
| |
| public String build() { |
| if (parameters == null) { |
| return EMPTY_LIST; |
| } |
| |
| String parameterString = getParameterString(); |
| return truncate(parameterString); |
| } |
| |
| private String getParameterString() { |
| StringBuilder stringBuilder = new StringBuilder(); |
| boolean first = true; |
| for (int i = 0; i < getMaxIndex(); i++) { |
| Object parameter = parameters[i]; |
| if (!first) { |
| stringBuilder.append(","); |
| } |
| stringBuilder.append(parameter); |
| first = false; |
| } |
| return String.format("[%s]", stringBuilder.toString()); |
| } |
| |
| private int getMaxIndex() { |
| int maxIdx = maxIndex != null ? maxIndex : parameters.length; |
| return Math.min(maxIdx, parameters.length); |
| } |
| |
| private String truncate(String parameterString) { |
| if (maxLength > 0 && parameterString.length() > maxLength) { |
| parameterString = parameterString.substring(0, maxLength) + "..."; |
| } |
| |
| return parameterString; |
| } |
| |
| } |