elasticsearch 学习历程

最新推荐文章于 2023-02-13 16:11:15 发布

转载最新推荐文章于 2023-02-13 16:11:15 发布 · 283 阅读

本文介绍了一种使用Java更新Elasticsearch中嵌套字段的方法。通过Groovy脚本实现，示例展示了如何根据特定条件更新文档内容及结果字段。

今天需要使用java更新es的嵌套属性的值。找了好久终于找到了对应的api。

原文地址 https://github.com/elastic/elasticsearch-lang-groovy/blob/master/src/test/java/org/elasticsearch/script/groovy/GroovyScriptSearchTests.java

public void handle(TraceLogMessage message) throws Exception {
    TraceLogDocument emptyTraceLog = new TraceLogDocument();
    emptyTraceLog.date = message.date;
    emptyTraceLog.id = message.id;
    emptyTraceLog.app = message.app;
    emptyTraceLog.action = message.action;
    emptyTraceLog.result = message.result;
    emptyTraceLog.content = Lists.newArrayList();

    StringBuilder script = new StringBuilder("ctx._source.content+=line");
    if ("ERROR".equals(message.result))
        script.append("; ctx._source.result=\"ERROR\"");    // if log doc is created by WARN, ERROR should update result

    Map<String, String> params = Maps.newHashMap("line", message.content);

    UpdateRequest request = new UpdateRequest()
        .script(new Script(script.toString(), ScriptService.ScriptType.INLINE, null, params))
        .upsert(JSON.toJSON(emptyTraceLog));
    request.scriptedUpsert(true);

    traceType.update(message.id, request);
}