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Posted to dev@lucene.apache.org by "Uwe Schindler (JIRA)" <ji...@apache.org> on 2014/03/30 12:12:15 UTC

[jira] [Comment Edited] (LUCENE-5559) Argument validation for TokenFilters having numeric constructor parameter(s)

    [ https://issues.apache.org/jira/browse/LUCENE-5559?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13954634#comment-13954634 ] 

Uwe Schindler edited comment on LUCENE-5559 at 3/30/14 10:10 AM:
-----------------------------------------------------------------

Hi Achmet,

{noformat}
+  public void test() throws Exception {
+    MockTokenizer tokenizer = whitespaceMockTokenizer("A1 B2 C3 D4 E5 F6");
+    // LimitTokenCountFilter doesn't consume the entire stream that it wraps
+    tokenizer.setEnableChecks(false);
+    TokenStream stream = new LimitTokenCountFilter(tokenizer, 3);
+    assertTokenStreamContents(stream, new String[]{"A1", "B2", "C3"});
+  }
{noformat}

LimitTokenCount (and others like LimitPosition*) filter has the option to consume all tokens. Maybe better check this configuration, so the tokenizer can have checks enabled.


was (Author: thetaphi):
Hi Achmet,

{noformat}
+  public void test() throws Exception {
+    MockTokenizer tokenizer = whitespaceMockTokenizer("A1 B2 C3 D4 E5 F6");
+    // LimitTokenCountFilter doesn't consume the entire stream that it wraps
+    tokenizer.setEnableChecks(false);
+    TokenStream stream = new LimitTokenCountFilter(tokenizer, 3);
+    assertTokenStreamContents(stream, new String[]{"A1", "B2", "C3"});
+  }
{noformat}

LimitTokenCount (and others like LimitPosition*) filter has the option to consume all tokens. Maybe better check this configuration, s the tokenizer can have checks enabled.

> Argument validation for TokenFilters having numeric constructor parameter(s)
> ----------------------------------------------------------------------------
>
>                 Key: LUCENE-5559
>                 URL: https://issues.apache.org/jira/browse/LUCENE-5559
>             Project: Lucene - Core
>          Issue Type: Improvement
>          Components: modules/analysis
>    Affects Versions: 4.7
>            Reporter: Ahmet Arslan
>            Priority: Minor
>             Fix For: 4.8
>
>         Attachments: LUCENE-5559.patch, LUCENE-5559.patch, LUCENE-5559.patch
>
>
> Some TokenFilters have numeric arguments in their constructors. They should throw {{IllegalArgumentException}} for negative or meaningless values. 
> Here is some examples that demonstrates invalid/meaningless arguments :
> {code:xml}
>  <filter class="solr.LimitTokenCountFilterFactory" maxTokenCount="-10" />
> {code}
> {code:xml}
>  <filter class="solr.LengthFilterFactory" min="-5" max="-1" />
> {code}
> {code:xml}
>  <filter class="solr.LimitTokenPositionFilterFactory" maxTokenPosition="-3" />
> {code}



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