com.qiniu.convert.Converter Maven / Gradle / Ivy

Go to download
package com.qiniu.convert;

import com.qiniu.interfaces.ITypeConvert;
import com.qiniu.util.JsonUtils;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

public abstract class Converter implements ITypeConvert {

    private List errorList = new ArrayList<>();

    public abstract T convertToV(E line) throws IOException;

    @Override
    public List convertToVList(List lineList) {
        List mapList = new ArrayList<>();
        if (lineList != null && lineList.size() > 0) {
            for (E line : lineList) {
                try {
                    mapList.add(convertToV(line));
                } catch (Exception e) {
                    if (line instanceof String) {
                        errorList.add(String.join("\t", String.valueOf(line), "convert error", e.getMessage()));
                    } else {
                        errorList.add(String.join("\t", JsonUtils.toJson(line), "convert error", e.getMessage()));
                    }
                }
            }
        }
        return mapList;
    }

    @Override
    public int errorSize() {
        return errorList.size();
    }

    @Override
    public String errorLines() {
        try {
            return String.join("\n", errorList);
        } finally {
            errorList.clear();
        }
    }
}