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https://gitee.com/dromara/liteFlow.git
synced 2026-05-14 20:22:07 +08:00
enhancement #I61D1N 解析增加 enable 逻辑,完成 etcd 改造
This commit is contained in:
gaibu
@@ -1,10 +1,9 @@
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package com.yomahub.liteflow.parser.etcd.util;
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import cn.hutool.core.collection.CollUtil;
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import cn.hutool.core.collection.CollectionUtil;
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import cn.hutool.core.io.file.FileNameUtil;
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import cn.hutool.core.lang.Pair;
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import cn.hutool.core.util.CharsetUtil;
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import cn.hutool.core.util.ReUtil;
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import cn.hutool.core.util.StrUtil;
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import com.yomahub.liteflow.builder.LiteFlowNodeBuilder;
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import com.yomahub.liteflow.builder.el.LiteFlowChainELBuilder;
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@@ -13,7 +12,9 @@ import com.yomahub.liteflow.flow.FlowBus;
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import com.yomahub.liteflow.parser.etcd.EtcdClient;
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import com.yomahub.liteflow.parser.etcd.exception.EtcdException;
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import com.yomahub.liteflow.parser.etcd.vo.EtcdParserVO;
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import com.yomahub.liteflow.parser.helper.NodeConvertHelper;
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import com.yomahub.liteflow.spi.holder.ContextAwareHolder;
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import com.yomahub.liteflow.util.RuleParsePluginUtil;
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import io.etcd.jetcd.ByteSequence;
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import io.etcd.jetcd.Client;
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import io.etcd.jetcd.ClientBuilder;
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@@ -31,200 +32,162 @@ import java.util.stream.Collectors;
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*/
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public class EtcdParserHelper {
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private static final Logger LOG = LoggerFactory.getLogger(EtcdParserHelper.class);
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private static final Logger LOG = LoggerFactory.getLogger(EtcdParserHelper.class);
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private final String CHAIN_XML_PATTERN = "<chain name=\"{}\">{}</chain>";
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private final String CHAIN_XML_PATTERN = "<chain name=\"{}\">{}</chain>";
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private final String NODE_XML_PATTERN = "<nodes>{}</nodes>";
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private final String NODE_XML_PATTERN = "<nodes>{}</nodes>";
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private final String NODE_ITEM_XML_PATTERN = "<node id=\"{}\" name=\"{}\" type=\"{}\"><![CDATA[{}]]></node>";
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private final String NODE_ITEM_XML_PATTERN = "<node id=\"{}\" name=\"{}\" type=\"{}\"><![CDATA[{}]]></node>";
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private final String XML_PATTERN = "<?xml version=\"1.0\" encoding=\"UTF-8\"?><flow>{}{}</flow>";
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private final String XML_PATTERN = "<?xml version=\"1.0\" encoding=\"UTF-8\"?><flow>{}{}</flow>";
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private static final String SEPARATOR = "/";
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private static final String SEPARATOR = "/";
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private final EtcdParserVO etcdParserVO;
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private final EtcdParserVO etcdParserVO;
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private EtcdClient client;
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private EtcdClient client;
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public EtcdParserHelper(EtcdParserVO etcdParserVO) {
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this.etcdParserVO = etcdParserVO;
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public EtcdParserHelper(EtcdParserVO etcdParserVO) {
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this.etcdParserVO = etcdParserVO;
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try {
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try {
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this.client = ContextAwareHolder.loadContextAware().getBean(EtcdClient.class);
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}
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catch (Exception ignored) {
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}
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if (this.client == null) {
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ClientBuilder clientBuilder = Client.builder().endpoints(etcdParserVO.getEndpoints().split(","));
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if (StrUtil.isNotBlank(etcdParserVO.getNamespace())) {
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clientBuilder.namespace(ByteSequence.from(etcdParserVO.getNamespace(), CharsetUtil.CHARSET_UTF_8));
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}
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if (StrUtil.isAllNotBlank(etcdParserVO.getUser(), etcdParserVO.getPassword())) {
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clientBuilder.user(ByteSequence.from(etcdParserVO.getUser(), CharsetUtil.CHARSET_UTF_8));
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clientBuilder.password(ByteSequence.from(etcdParserVO.getPassword(), CharsetUtil.CHARSET_UTF_8));
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}
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this.client = new EtcdClient(clientBuilder.build());
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}
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}
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catch (Exception e) {
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throw new EtcdException(e.getMessage());
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}
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}
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try {
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try {
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this.client = ContextAwareHolder.loadContextAware().getBean(EtcdClient.class);
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} catch (Exception ignored) {
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}
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if (this.client == null) {
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ClientBuilder clientBuilder = Client.builder().endpoints(etcdParserVO.getEndpoints().split(","));
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if (StrUtil.isNotBlank(etcdParserVO.getNamespace())) {
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clientBuilder.namespace(ByteSequence.from(etcdParserVO.getNamespace(), CharsetUtil.CHARSET_UTF_8));
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}
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if (StrUtil.isAllNotBlank(etcdParserVO.getUser(), etcdParserVO.getPassword())) {
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clientBuilder.user(ByteSequence.from(etcdParserVO.getUser(), CharsetUtil.CHARSET_UTF_8));
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clientBuilder.password(ByteSequence.from(etcdParserVO.getPassword(), CharsetUtil.CHARSET_UTF_8));
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}
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this.client = new EtcdClient(clientBuilder.build());
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}
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} catch (Exception e) {
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throw new EtcdException(e.getMessage());
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}
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}
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public String getContent() {
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try {
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// 检查chainPath路径下有没有子节点
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List<String> chainNameList = client.getChildrenKeys(etcdParserVO.getChainPath(), SEPARATOR);
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public String getContent() {
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try {
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// 检查chainPath路径下有没有子节点
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List<String> chainNameList = client.getChildrenKeys(etcdParserVO.getChainPath(), SEPARATOR);
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// 获取chainPath路径下的所有子节点内容List
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List<String> chainItemContentList = new ArrayList<>();
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for (String chainName : chainNameList) {
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String chainData = client.get(StrUtil.format("{}/{}", etcdParserVO.getChainPath(), chainName));
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if (StrUtil.isNotBlank(chainData)) {
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chainItemContentList.add(StrUtil.format(CHAIN_XML_PATTERN, chainName, chainData));
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}
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}
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// 合并成所有chain的xml内容
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String chainAllContent = CollUtil.join(chainItemContentList, StrUtil.EMPTY);
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// 获取chainPath路径下的所有子节点内容List
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List<String> chainItemContentList = new ArrayList<>();
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for (String chainName : chainNameList) {
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RuleParsePluginUtil.ChainDto chainDto = RuleParsePluginUtil.parseChainKey(chainName);
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String chainData = client.get(StrUtil.format("{}/{}", etcdParserVO.getChainPath(), chainName));
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if (StrUtil.isNotBlank(chainData) && chainDto.isEnable()) {
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chainItemContentList.add(chainDto.toElXml(chainData));
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}
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}
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// 合并成所有chain的xml内容
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String chainAllContent = CollUtil.join(chainItemContentList, StrUtil.EMPTY);
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// 检查是否有脚本内容，如果有，进行脚本内容的获取
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String scriptAllContent = StrUtil.EMPTY;
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if (hasScript()) {
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List<String> scriptNodeValueList = client.getChildrenKeys(etcdParserVO.getScriptPath(), SEPARATOR)
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.stream()
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.filter(StrUtil::isNotBlank)
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.collect(Collectors.toList());
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// 检查是否有脚本内容，如果有，进行脚本内容的获取
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String scriptAllContent = StrUtil.EMPTY;
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if (hasScript()) {
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List<String> scriptNodeValueList = client.getChildrenKeys(etcdParserVO.getScriptPath(), SEPARATOR)
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.stream()
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.filter(StrUtil::isNotBlank)
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.collect(Collectors.toList());
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List<String> scriptItemContentList = new ArrayList<>();
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for (String scriptNodeValue : scriptNodeValueList) {
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NodeSimpleVO nodeSimpleVO = convert(scriptNodeValue);
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if (Objects.isNull(nodeSimpleVO)) {
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throw new EtcdException(
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StrUtil.format("The name of the etcd node is invalid:{}", scriptNodeValue));
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}
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String scriptData = client
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.get(StrUtil.format("{}/{}", etcdParserVO.getScriptPath(), scriptNodeValue));
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List<String> scriptItemContentList = new ArrayList<>();
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for (String scriptNodeValue : scriptNodeValueList) {
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NodeConvertHelper.NodeSimpleVO nodeSimpleVO = NodeConvertHelper.convert(scriptNodeValue);
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if (Objects.isNull(nodeSimpleVO)) {
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throw new EtcdException(
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StrUtil.format("The name of the etcd node is invalid:{}", scriptNodeValue));
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}
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String scriptData = client
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.get(StrUtil.format("{}/{}", etcdParserVO.getScriptPath(), scriptNodeValue));
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scriptItemContentList.add(StrUtil.format(NODE_ITEM_XML_PATTERN, nodeSimpleVO.getNodeId(),
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nodeSimpleVO.getName(), nodeSimpleVO.getType(), scriptData));
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}
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nodeSimpleVO.setScript(scriptData);
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scriptItemContentList.add(RuleParsePluginUtil.toScriptXml(nodeSimpleVO));
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}
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scriptAllContent = StrUtil.format(NODE_XML_PATTERN,
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CollUtil.join(scriptItemContentList, StrUtil.EMPTY));
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}
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return StrUtil.format(XML_PATTERN, scriptAllContent, chainAllContent);
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}
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catch (Exception e) {
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throw new EtcdException(e.getMessage());
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}
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}
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scriptAllContent = StrUtil.format(NODE_XML_PATTERN,
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CollUtil.join(scriptItemContentList, StrUtil.EMPTY));
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}
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public boolean hasScript() {
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// 没有配置scriptPath
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if (StrUtil.isBlank(etcdParserVO.getScriptPath())) {
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return false;
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}
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return StrUtil.format(XML_PATTERN, scriptAllContent, chainAllContent);
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} catch (Exception e) {
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throw new EtcdException(e.getMessage());
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}
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}
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try {
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// 存在这个节点，但是子节点不存在
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List<String> chainNameList = client.getChildrenKeys(etcdParserVO.getScriptPath(), SEPARATOR);
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return !CollUtil.isEmpty(chainNameList);
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}
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catch (Exception e) {
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return false;
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}
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}
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public boolean hasScript() {
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// 没有配置scriptPath
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if (StrUtil.isBlank(etcdParserVO.getScriptPath())) {
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return false;
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}
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/**
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* 监听 etcd 节点
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*/
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public void listen() {
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this.client.watchChildChange(this.etcdParserVO.getChainPath(), (updatePath, updateValue) -> {
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LOG.info("starting reload flow config... update path={} value={},", updatePath, updateValue);
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String chainName = FileNameUtil.getName(updatePath);
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LiteFlowChainELBuilder.createChain().setChainId(chainName).setEL(updateValue).build();
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}, (deletePath) -> {
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LOG.info("starting reload flow config... delete path={}", deletePath);
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String chainName = FileNameUtil.getName(deletePath);
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FlowBus.removeChain(chainName);
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});
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try {
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// 存在这个节点，但是子节点不存在
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List<String> chainNameList = client.getChildrenKeys(etcdParserVO.getScriptPath(), SEPARATOR);
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return !CollUtil.isEmpty(chainNameList);
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} catch (Exception e) {
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return false;
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}
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}
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if (StrUtil.isNotBlank(this.etcdParserVO.getScriptPath())) {
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this.client.watchChildChange(this.etcdParserVO.getScriptPath(), (updatePath, updateValue) -> {
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LOG.info("starting reload flow config... update path={} value={}", updatePath, updateValue);
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String scriptNodeValue = FileNameUtil.getName(updatePath);
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NodeSimpleVO nodeSimpleVO = convert(scriptNodeValue);
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LiteFlowNodeBuilder.createScriptNode()
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.setId(nodeSimpleVO.getNodeId())
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.setType(NodeTypeEnum.getEnumByCode(nodeSimpleVO.type))
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.setName(nodeSimpleVO.getName())
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.setScript(updateValue)
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.build();
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}, (deletePath) -> {
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LOG.info("starting reload flow config... delete path={}", deletePath);
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String scriptNodeValue = FileNameUtil.getName(deletePath);
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NodeSimpleVO nodeSimpleVO = convert(scriptNodeValue);
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FlowBus.getNodeMap().remove(nodeSimpleVO.getNodeId());
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});
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}
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}
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/**
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* 监听 etcd 节点
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*/
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public void listen() {
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this.client.watchChildChange(this.etcdParserVO.getChainPath(), (updatePath, updateValue) -> {
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LOG.info("starting reload flow config... update path={} value={},", updatePath, updateValue);
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String changeKey = FileNameUtil.getName(updatePath);
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Pair<Boolean/*启停*/, String/*id*/> pair = RuleParsePluginUtil.parseIdKey(changeKey);
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Boolean enable = pair.getKey();
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String id = pair.getValue();
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// 如果是启用，就正常更新
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if (pair.getKey()) {
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LiteFlowChainELBuilder.createChain().setChainId(id).setEL(updateValue).build();
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}
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// 如果是禁用，就删除
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else {
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FlowBus.removeChain(id);
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}
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}, (deletePath) -> {
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LOG.info("starting reload flow config... delete path={}", deletePath);
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String chainName = FileNameUtil.getName(deletePath);
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Pair<Boolean/*启停*/, String/*id*/> pair = RuleParsePluginUtil.parseIdKey(chainName);
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FlowBus.removeChain(pair.getValue());
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});
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public NodeSimpleVO convert(String str) {
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// 不需要去理解这串正则，就是一个匹配冒号的
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// 一定得是a:b，或是a:b:c...这种完整类型的字符串的
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List<String> matchItemList = ReUtil.findAllGroup0("(?<=[^:]:)[^:]+|[^:]+(?=:[^:])", str);
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if (CollUtil.isEmpty(matchItemList)) {
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return null;
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}
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if (StrUtil.isNotBlank(this.etcdParserVO.getScriptPath())) {
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this.client.watchChildChange(this.etcdParserVO.getScriptPath(), (updatePath, updateValue) -> {
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LOG.info("starting reload flow config... update path={} value={}", updatePath, updateValue);
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String scriptNodeValue = FileNameUtil.getName(updatePath);
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NodeConvertHelper.NodeSimpleVO nodeSimpleVO = NodeConvertHelper.convert(scriptNodeValue);
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// 启用就正常更新
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if (nodeSimpleVO.getEnable()) {
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LiteFlowNodeBuilder.createScriptNode()
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.setId(nodeSimpleVO.getNodeId())
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.setType(NodeTypeEnum.getEnumByCode(nodeSimpleVO.getType()))
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.setName(nodeSimpleVO.getName())
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.setScript(nodeSimpleVO.getScript())
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.build();
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}
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// 禁用就删除
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else {
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FlowBus.getNodeMap().remove(nodeSimpleVO.getNodeId());
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}
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}, (deletePath) -> {
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LOG.info("starting reload flow config... delete path={}", deletePath);
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String scriptNodeValue = FileNameUtil.getName(deletePath);
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NodeConvertHelper.NodeSimpleVO nodeSimpleVO = NodeConvertHelper.convert(scriptNodeValue);
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FlowBus.getNodeMap().remove(nodeSimpleVO.getNodeId());
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});
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}
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}
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NodeSimpleVO nodeSimpleVO = new NodeSimpleVO();
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if (matchItemList.size() > 1) {
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nodeSimpleVO.setNodeId(matchItemList.get(0));
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nodeSimpleVO.setType(matchItemList.get(1));
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}
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if (matchItemList.size() > 2) {
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nodeSimpleVO.setName(matchItemList.get(2));
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}
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return nodeSimpleVO;
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}
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private static class NodeSimpleVO {
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private String nodeId;
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private String type;
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private String name = "";
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public String getNodeId() {
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return nodeId;
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}
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public void setNodeId(String nodeId) {
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this.nodeId = nodeId;
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}
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public String getType() {
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return type;
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}
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public void setType(String type) {
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this.type = type;
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}
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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}
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}
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