cn.zhucongqi.excel.read.BaseSaxAnalyser Maven / Gradle / Ivy
/*
* Copyright 2018 Jobsz ([email protected])
*
* 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.zhucongqi.excel.read;
import java.io.InputStream;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import cn.zhucongqi.excel.metadata.Sheet;
import cn.zhucongqi.excel.read.context.AnalysisContext;
import cn.zhucongqi.excel.read.event.AnalysisEventListener;
import cn.zhucongqi.excel.read.event.AnalysisEventRegisterCenter;
import cn.zhucongqi.excel.read.event.OneRowAnalysisFinishEvent;
import cn.zhucongqi.excel.support.ExcelTypeEnum;
/**
* 抽象sax模式 excel 解析类
*
* @author Jobsz
*/
public abstract class BaseSaxAnalyser implements AnalysisEventRegisterCenter, ExcelAnalyser {
protected AnalysisContext analysisContext;
private LinkedHashMap> listeners = new LinkedHashMap>();
/**
* 开始执行解析
*/
protected abstract void execute();
public void init(InputStream inputStream, ExcelTypeEnum excelTypeEnum, Object custom,
AnalysisEventListener eventListener, boolean trim) {
}
public void appendLister(String name, AnalysisEventListener listener) {
if (!listeners.containsKey(name)) {
listeners.put(name, listener);
}
}
public void analysis(Sheet sheetParam) {
execute();
}
public void analysis() {
execute();
}
/**
* 清空所有监听者
*/
public void cleanAllListeners() {
listeners = new LinkedHashMap>();
}
@SuppressWarnings("unchecked")
public void notifyListeners(OneRowAnalysisFinishEvent event) {
analysisContext.setCurrentRowAnalysisResult(event.getData());
//表头数据
if (analysisContext.getCurrentRowNum() < analysisContext.getCurrentSheet().getHeadLineMun()) {
if (analysisContext.getCurrentRowNum() <= analysisContext.getCurrentSheet().getHeadLineMun() - 1) {
analysisContext.buildExcelHeadProperty(null,
(List)analysisContext.getCurrentRowAnalysisResult());
}
} else {
analysisContext.setCurrentRowAnalysisResult(event.getData());
for (Map.Entry> entry : listeners.entrySet()) {
entry.getValue().invoke(analysisContext.getCurrentRowAnalysisResult(), analysisContext);
}
}
}
}