Asynchronous SolrJ-使用ContentStreamUpdateRequest异步索引文档
我正在使用SolrJ API 4.8将丰富的文档索引到solr。但是我想异步索引这些文档。我创建的函数同步发送文档,但我不知道如何将其更改为异步。有什么想法吗 功能:Asynchronous SolrJ-使用ContentStreamUpdateRequest异步索引文档,asynchronous,solr,indexing,request,solrj,Asynchronous,Solr,Indexing,Request,Solrj,我正在使用SolrJ API 4.8将丰富的文档索引到solr。但是我想异步索引这些文档。我创建的函数同步发送文档,但我不知道如何将其更改为异步。有什么想法吗 功能: public Boolean indexDocument(HttpSolrServer server, String PathFile, InputReader external) { ContentStreamUpdateRequest up = new ContentStreamUpdateRequest
public Boolean indexDocument(HttpSolrServer server, String PathFile, InputReader external)
{
ContentStreamUpdateRequest up = new ContentStreamUpdateRequest("/update/extract");
try {
up.addFile(new File(PathFile), "text");
} catch (IOException e) {
Logger.getLogger(ANOIndexer.class.getName()).log(Level.SEVERE, null, e);
return false;
}
up.setAction(AbstractUpdateRequest.ACTION.COMMIT, true, true);
try {
server.request(up);
} catch (SolrServerException e) {
Logger.getLogger(ANOIndexer.class.getName()).log(Level.SEVERE, null, e);
return false;
} catch (IOException e) {
Logger.getLogger(ANOIndexer.class.getName()).log(Level.SEVERE, null, e);
return false;
}
return true;
}
Solr server:Version4.8听起来您可能想看看如何使用ExecutorService和FutureTask来实现这一点:
private static HttpSolrServer server;
private static int threadPoolSize = 4; //Set this to something appropiate for your environment
public static void main(String[] args) {
ExecutorService executor = Executors.newFixedThreadPool(threadPoolSize);
ArrayList<FutureTask<Boolean>> taskList = new ArrayList<FutureTask<Boolean>>();
ArrayList<String> paths = new ArrayList<String>();
//Initialize your list of paths here
for (String path : paths) {
FutureTask<Boolean> futureTask = new FutureTask<Boolean>(new IndexDocumentTask(path));
taskList.add(futureTask);
executor.execute(futureTask);
}
for (int i = 0; i < taskList.size(); i++) {
FutureTask<Boolean> futureTask = taskList.get(i);
try {
System.out.println("Index Task " + i + (futureTask.get() ? " finished successfully." : " encountered an error."));
} catch (ExecutionException e) {
System.out.println("An Execution Exception occurred with Index Task " + i);
} catch (InterruptedException e) {
System.out.println("An Interrupted Exception occurred with Index Task " + i);
}
}
executor.shutdown();
}
static class IndexDocumentTask implements Callable<Boolean> {
private String pathFile;
public IndexDocumentTask(String pathFile) {
this.pathFile = pathFile;
}
@Override
public Boolean call() {
return indexDocument(pathFile);
}
public Boolean indexDocument(String pathFile) {
ContentStreamUpdateRequest up = new ContentStreamUpdateRequest("/update/extract");
try {
up.addFile(new File(pathFile), "text");
} catch (IOException e) {
Logger.getLogger(ANOIndexer.class.getName()).log(Level.SEVERE, null, e);
return false;
}
up.setAction(AbstractUpdateRequest.ACTION.COMMIT, true, true);
try {
server.request(up);
} catch (SolrServerException e) {
Logger.getLogger(ANOIndexer.class.getName()).log(Level.SEVERE, null, e);
return false;
} catch (IOException e) {
Logger.getLogger(ANOIndexer.class.getName()).log(Level.SEVERE, null, e);
return false;
}
return true;
}
}
私有静态HttpSolrServer服务器;
私有静态int threadPoolSize=4//将此设置为适合您的环境的值
公共静态void main(字符串[]args){
ExecutorService executor=Executors.newFixedThreadPool(threadPoolSize);
ArrayList taskList=新建ArrayList();
ArrayList路径=新的ArrayList();
//在此处初始化路径列表
用于(字符串路径:路径){
FutureTask FutureTask=新的FutureTask(新索引文档任务(路径));
任务列表。添加(未来任务);
执行人。执行(未来任务);
}
对于(int i=0;i
这是未经测试的代码,所以我不确定这样调用server.request(up)
是否是线程安全的。我认为只使用一个HttpSolrServer实例更简单,但您也可以在每个任务中创建新的HttpSolrServer实例
如果愿意,您可以扩展IndexDocumentTask以实现可调用的
,这样您就可以检索要编制索引的文档的文件名以及索引是否成功
尽管我不认为一次向Solr服务器发送多个请求会有问题,但您可能希望限制您的请求,以免Solr服务器过载