com.yomahub.liteflow.parser.zk.ZkXmlELParser Maven / Gradle / Ivy
package com.yomahub.liteflow.parser.zk;
import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.bean.copier.CopyOptions;
import cn.hutool.core.map.MapUtil;
import cn.hutool.core.util.StrUtil;
import com.yomahub.liteflow.core.FlowInitHook;
import com.yomahub.liteflow.parser.el.ClassXmlFlowELParser;
import com.yomahub.liteflow.parser.zk.exception.ZkException;
import com.yomahub.liteflow.parser.zk.util.ZkParserHelper;
import com.yomahub.liteflow.parser.zk.vo.ZkParserVO;
import com.yomahub.liteflow.property.LiteflowConfig;
import com.yomahub.liteflow.property.LiteflowConfigGetter;
import com.yomahub.liteflow.util.JsonUtil;
import java.util.Objects;
/**
* ZK解析器实现，只支持EL形式的XML，不支持其他的形式
*
* @author Bryan.Zhang
* @since 2.8.6
*/
public class ZkXmlELParser extends ClassXmlFlowELParser {
private final ZkParserHelper zkParserHelper;
public ZkXmlELParser() {
LiteflowConfig liteflowConfig = LiteflowConfigGetter.get();
try {
ZkParserVO zkParserVO = null;
if (MapUtil.isNotEmpty((liteflowConfig.getRuleSourceExtDataMap()))) {
zkParserVO = BeanUtil.toBean(liteflowConfig.getRuleSourceExtDataMap(), ZkParserVO.class,
CopyOptions.create());
}
else if (StrUtil.isNotBlank(liteflowConfig.getRuleSourceExtData())) {
zkParserVO = JsonUtil.parseObject(liteflowConfig.getRuleSourceExtData(), ZkParserVO.class);
}
if (Objects.isNull(zkParserVO)) {
throw new ZkException("rule-source-ext-data is empty");
}
if (StrUtil.isBlank(zkParserVO.getChainPath())) {
throw new ZkException("You must configure the chainPath property");
}
if (StrUtil.isBlank(zkParserVO.getConnectStr())) {
throw new ZkException("zk connect string is empty");
}
zkParserHelper = new ZkParserHelper(zkParserVO);
}
catch (Exception e) {
throw new ZkException(e);
}
}
@Override
public String parseCustom() {
try {
String content = zkParserHelper.getContent();
FlowInitHook.addHook(() -> {
zkParserHelper.listenZkNode();
return true;
});
return content;
}
catch (Exception e) {
throw new ZkException(e);
}
}
}