Oh, I see, it’s because TokenFilter extends AttributeSource, so the import is 
unnecessary.  Will push a fix as part of LUCENE-7623.

Alan Woodward
www.flax.co.uk


> On 16 Jan 2017, at 11:26, Alan Woodward <[email protected]> wrote:
> 
> This is making precommit fail for me locally:
> 
> -ecj-javadoc-lint-src:
>     [mkdir] Created dir: 
> /var/folders/16/hgq2wtys7nv1_x9st6mdpwzh0000gp/T/ecj662445789
>  [ecj-lint] Compiling 453 source files to 
> /var/folders/16/hgq2wtys7nv1_x9st6mdpwzh0000gp/T/ecj662445789
>  [ecj-lint] ----------
>  [ecj-lint] 1. ERROR in 
> /Users/woody/asf/lucene-solr-trunk/lucene/analysis/common/src/java/org/apache/lucene/analysis/ngram/EdgeNGramTokenFilter.java
>  (at line 26)
>  [ecj-lint]           import org.apache.lucene.util.AttributeSource.State;
>  [ecj-lint]                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>  [ecj-lint] The import org.apache.lucene.util.AttributeSource.State is never 
> used
>  [ecj-lint] —————
> 
> Which is confusing as hell, because the import clearly *is* used.  And 
> removing the import fixes things, even though it shouldn’t then compile.
> 
> Alan Woodward
> www.flax.co.uk <http://www.flax.co.uk/>
> 
> 
>> On 16 Jan 2017, at 10:27, [email protected] 
>> <mailto:[email protected]> wrote:
>> 
>> Repository: lucene-solr
>> Updated Branches:
>>  refs/heads/branch_6x b5b17b23c -> a69c632aa
>> 
>> 
>> LUCENE-7630: Fix (Edge)NGramTokenFilter to no longer drop payloads and 
>> preserve all attributes
>> [merge branch 'edgepayloads' from Nathan Gass 
>> https://github.com/xabbu42/lucene-solr] 
>> <https://github.com/xabbu42/lucene-solr]>
>> 
>> Signed-off-by: Uwe Schindler <[email protected] 
>> <mailto:[email protected]>>
>> 
>> 
>> Project: http://git-wip-us.apache.org/repos/asf/lucene-solr/repo 
>> <http://git-wip-us.apache.org/repos/asf/lucene-solr/repo>
>> Commit: http://git-wip-us.apache.org/repos/asf/lucene-solr/commit/a69c632a 
>> <http://git-wip-us.apache.org/repos/asf/lucene-solr/commit/a69c632a>
>> Tree: http://git-wip-us.apache.org/repos/asf/lucene-solr/tree/a69c632a 
>> <http://git-wip-us.apache.org/repos/asf/lucene-solr/tree/a69c632a>
>> Diff: http://git-wip-us.apache.org/repos/asf/lucene-solr/diff/a69c632a 
>> <http://git-wip-us.apache.org/repos/asf/lucene-solr/diff/a69c632a>
>> 
>> Branch: refs/heads/branch_6x
>> Commit: a69c632aa54d064515152145bcbcbe1e869d7061
>> Parents: b5b17b2
>> Author: Uwe Schindler <[email protected] <mailto:[email protected]>>
>> Authored: Mon Jan 16 11:16:43 2017 +0100
>> Committer: Uwe Schindler <[email protected] 
>> <mailto:[email protected]>>
>> Committed: Mon Jan 16 11:24:55 2017 +0100
>> 
>> ----------------------------------------------------------------------
>> lucene/CHANGES.txt                              |  7 +++
>> .../analysis/ngram/EdgeNGramTokenFilter.java    | 17 ++-----
>> .../lucene/analysis/ngram/NGramTokenFilter.java | 19 +++-----
>> .../lucene/analysis/ngram/TestNGramFilters.java | 47 ++++++++++++++++++++
>> 4 files changed, 63 insertions(+), 27 deletions(-)
>> ----------------------------------------------------------------------
>> 
>> 
>> http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/a69c632a/lucene/CHANGES.txt
>>  
>> <http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/a69c632a/lucene/CHANGES.txt>
>> ----------------------------------------------------------------------
>> diff --git a/lucene/CHANGES.txt b/lucene/CHANGES.txt
>> index 5de3bab..af0ff77 100644
>> --- a/lucene/CHANGES.txt
>> +++ b/lucene/CHANGES.txt
>> @@ -6,6 +6,13 @@ http://s.apache.org/luceneversions
>> ======================= Lucene 6.5.0 =======================
>> (No Changes)
>> 
>> +======================= Lucene 6.5.0 =======================
>> +
>> +Bug Fixes
>> +
>> +* LUCENE-7630: Fix (Edge)NGramTokenFilter to no longer drop payloads
>> +  and preserve all attributes. (Nathan Gass via Uwe Schindler)
>> +
>> ======================= Lucene 6.4.0 =======================
>> 
>> API Changes
>> 
>> http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/a69c632a/lucene/analysis/common/src/java/org/apache/lucene/analysis/ngram/EdgeNGramTokenFilter.java
>> ----------------------------------------------------------------------
>> diff --git 
>> a/lucene/analysis/common/src/java/org/apache/lucene/analysis/ngram/EdgeNGramTokenFilter.java
>>  
>> b/lucene/analysis/common/src/java/org/apache/lucene/analysis/ngram/EdgeNGramTokenFilter.java
>> index 827e26f..47b80ff 100644
>> --- 
>> a/lucene/analysis/common/src/java/org/apache/lucene/analysis/ngram/EdgeNGramTokenFilter.java
>> +++ 
>> b/lucene/analysis/common/src/java/org/apache/lucene/analysis/ngram/EdgeNGramTokenFilter.java
>> @@ -22,9 +22,8 @@ import java.io.IOException;
>> import org.apache.lucene.analysis.TokenFilter;
>> import org.apache.lucene.analysis.TokenStream;
>> import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
>> -import org.apache.lucene.analysis.tokenattributes.OffsetAttribute;
>> import org.apache.lucene.analysis.tokenattributes.PositionIncrementAttribute;
>> -import org.apache.lucene.analysis.tokenattributes.PositionLengthAttribute;
>> +import org.apache.lucene.util.AttributeSource.State;
>> 
>> /**
>>  * Tokenizes the given token into n-grams of given size(s).
>> @@ -43,15 +42,11 @@ public final class EdgeNGramTokenFilter extends 
>> TokenFilter {
>>   private int curTermLength;
>>   private int curCodePointCount;
>>   private int curGramSize;
>> -  private int tokStart;
>> -  private int tokEnd; // only used if the length changed before this filter
>>   private int savePosIncr;
>> -  private int savePosLen;
>> +  private State state;
>> 
>>   private final CharTermAttribute termAtt = 
>> addAttribute(CharTermAttribute.class);
>> -  private final OffsetAttribute offsetAtt = 
>> addAttribute(OffsetAttribute.class);
>>   private final PositionIncrementAttribute posIncrAtt = 
>> addAttribute(PositionIncrementAttribute.class);
>> -  private final PositionLengthAttribute posLenAtt = 
>> addAttribute(PositionLengthAttribute.class);
>> 
>>   /**
>>    * Creates EdgeNGramTokenFilter that can generate n-grams in the sizes of 
>> the given range
>> @@ -86,17 +81,14 @@ public final class EdgeNGramTokenFilter extends 
>> TokenFilter {
>>           curTermLength = termAtt.length();
>>           curCodePointCount = Character.codePointCount(termAtt, 0, 
>> termAtt.length());
>>           curGramSize = minGram;
>> -          tokStart = offsetAtt.startOffset();
>> -          tokEnd = offsetAtt.endOffset();
>> +          state = captureState();
>>           savePosIncr += posIncrAtt.getPositionIncrement();
>> -          savePosLen = posLenAtt.getPositionLength();
>>         }
>>       }
>>       if (curGramSize <= maxGram) {         // if we have hit the end of our 
>> n-gram size range, quit
>>         if (curGramSize <= curCodePointCount) { // if the remaining input is 
>> too short, we can't generate any n-grams
>>           // grab gramSize chars from front or back
>> -          clearAttributes();
>> -          offsetAtt.setOffset(tokStart, tokEnd);
>> +          restoreState(state);
>>           // first ngram gets increment, others don't
>>           if (curGramSize == minGram) {
>>             posIncrAtt.setPositionIncrement(savePosIncr);
>> @@ -104,7 +96,6 @@ public final class EdgeNGramTokenFilter extends 
>> TokenFilter {
>>           } else {
>>             posIncrAtt.setPositionIncrement(0);
>>           }
>> -          posLenAtt.setPositionLength(savePosLen);
>>           final int charLength = Character.offsetByCodePoints(curTermBuffer, 
>> 0, curTermLength, 0, curGramSize);
>>           termAtt.copyBuffer(curTermBuffer, 0, charLength);
>>           curGramSize++;
>> 
>> http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/a69c632a/lucene/analysis/common/src/java/org/apache/lucene/analysis/ngram/NGramTokenFilter.java
>> ----------------------------------------------------------------------
>> diff --git 
>> a/lucene/analysis/common/src/java/org/apache/lucene/analysis/ngram/NGramTokenFilter.java
>>  
>> b/lucene/analysis/common/src/java/org/apache/lucene/analysis/ngram/NGramTokenFilter.java
>> index e275cfa..cb5d447 100644
>> --- 
>> a/lucene/analysis/common/src/java/org/apache/lucene/analysis/ngram/NGramTokenFilter.java
>> +++ 
>> b/lucene/analysis/common/src/java/org/apache/lucene/analysis/ngram/NGramTokenFilter.java
>> @@ -23,9 +23,8 @@ import org.apache.lucene.analysis.TokenFilter;
>> import org.apache.lucene.analysis.TokenStream;
>> import org.apache.lucene.analysis.miscellaneous.CodepointCountFilter;
>> import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
>> -import org.apache.lucene.analysis.tokenattributes.OffsetAttribute;
>> import org.apache.lucene.analysis.tokenattributes.PositionIncrementAttribute;
>> -import org.apache.lucene.analysis.tokenattributes.PositionLengthAttribute;
>> +import org.apache.lucene.util.AttributeSource.State;
>> 
>> /**
>>  * Tokenizes the input into n-grams of the given size(s).
>> @@ -52,14 +51,11 @@ public final class NGramTokenFilter extends TokenFilter {
>>   private int curCodePointCount;
>>   private int curGramSize;
>>   private int curPos;
>> -  private int curPosInc, curPosLen;
>> -  private int tokStart;
>> -  private int tokEnd;
>> +  private int curPosInc;
>> +  private State state;
>> 
>>   private final CharTermAttribute termAtt = 
>> addAttribute(CharTermAttribute.class);
>>   private final PositionIncrementAttribute posIncAtt;
>> -  private final PositionLengthAttribute posLenAtt;
>> -  private final OffsetAttribute offsetAtt = 
>> addAttribute(OffsetAttribute.class);
>> 
>>   /**
>>    * Creates NGramTokenFilter with given min and max n-grams.
>> @@ -79,7 +75,6 @@ public final class NGramTokenFilter extends TokenFilter {
>>     this.maxGram = maxGram;
>> 
>>     posIncAtt = addAttribute(PositionIncrementAttribute.class);
>> -    posLenAtt = addAttribute(PositionLengthAttribute.class);
>>   }
>> 
>>   /**
>> @@ -104,9 +99,7 @@ public final class NGramTokenFilter extends TokenFilter {
>>           curGramSize = minGram;
>>           curPos = 0;
>>           curPosInc = posIncAtt.getPositionIncrement();
>> -          curPosLen = posLenAtt.getPositionLength();
>> -          tokStart = offsetAtt.startOffset();
>> -          tokEnd = offsetAtt.endOffset();
>> +          state = captureState();
>>         }
>>       }
>> 
>> @@ -115,14 +108,12 @@ public final class NGramTokenFilter extends 
>> TokenFilter {
>>         curGramSize = minGram;
>>       }
>>       if ((curPos + curGramSize) <= curCodePointCount) {
>> -        clearAttributes();
>> +        restoreState(state);
>>         final int start = Character.offsetByCodePoints(curTermBuffer, 0, 
>> curTermLength, 0, curPos);
>>         final int end = Character.offsetByCodePoints(curTermBuffer, 0, 
>> curTermLength, start, curGramSize);
>>         termAtt.copyBuffer(curTermBuffer, start, end - start);
>>         posIncAtt.setPositionIncrement(curPosInc);
>>         curPosInc = 0;
>> -        posLenAtt.setPositionLength(curPosLen);
>> -        offsetAtt.setOffset(tokStart, tokEnd);
>>         curGramSize++;
>>         return true;
>>       }
>> 
>> http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/a69c632a/lucene/analysis/common/src/test/org/apache/lucene/analysis/ngram/TestNGramFilters.java
>> ----------------------------------------------------------------------
>> diff --git 
>> a/lucene/analysis/common/src/test/org/apache/lucene/analysis/ngram/TestNGramFilters.java
>>  
>> b/lucene/analysis/common/src/test/org/apache/lucene/analysis/ngram/TestNGramFilters.java
>> index 1243352..5de532f 100644
>> --- 
>> a/lucene/analysis/common/src/test/org/apache/lucene/analysis/ngram/TestNGramFilters.java
>> +++ 
>> b/lucene/analysis/common/src/test/org/apache/lucene/analysis/ngram/TestNGramFilters.java
>> @@ -22,7 +22,10 @@ import java.io.StringReader;
>> 
>> import org.apache.lucene.analysis.TokenStream;
>> import org.apache.lucene.analysis.Tokenizer;
>> +import org.apache.lucene.analysis.payloads.PayloadHelper;
>> +import org.apache.lucene.analysis.tokenattributes.PayloadAttribute;
>> import org.apache.lucene.analysis.util.BaseTokenStreamFactoryTestCase;
>> +import org.apache.lucene.util.BytesRef;
>> 
>> /**
>>  * Simple tests to ensure the NGram filter factories are working.
>> @@ -77,6 +80,28 @@ public class TestNGramFilters extends 
>> BaseTokenStreamFactoryTestCase {
>>   }
>> 
>>   /**
>> +   * Test NGramFilterFactory on tokens with payloads
>> +   */
>> +  public void testNGramFilterPayload() throws Exception {
>> +    Reader reader = new StringReader("test|0.1");
>> +    TokenStream stream = whitespaceMockTokenizer(reader);
>> +    stream = tokenFilterFactory("DelimitedPayload", "encoder", 
>> "float").create(stream);
>> +    stream = tokenFilterFactory("NGram", "minGramSize", "1", "maxGramSize", 
>> "2").create(stream);
>> +
>> +    stream.reset();
>> +    while (stream.incrementToken()) {
>> +      PayloadAttribute payAttr = 
>> stream.getAttribute(PayloadAttribute.class);
>> +      assertNotNull(payAttr);
>> +      BytesRef payData = payAttr.getPayload();
>> +      assertNotNull(payData);
>> +      float payFloat = PayloadHelper.decodeFloat(payData.bytes);
>> +      assertEquals(0.1f, payFloat, 0.0f);
>> +    }
>> +    stream.end();
>> +    stream.close();
>> +  }
>> +
>> +  /**
>>    * Test EdgeNGramTokenizerFactory
>>    */
>>   public void testEdgeNGramTokenizer() throws Exception {
>> @@ -123,6 +148,28 @@ public class TestNGramFilters extends 
>> BaseTokenStreamFactoryTestCase {
>>     assertTokenStreamContents(stream, 
>>         new String[] { "t", "te" });
>>   }
>> +
>> +  /**
>> +   * Test EdgeNGramFilterFactory on tokens with payloads
>> +   */
>> +  public void testEdgeNGramFilterPayload() throws Exception {
>> +    Reader reader = new StringReader("test|0.1");
>> +    TokenStream stream = whitespaceMockTokenizer(reader);
>> +    stream = tokenFilterFactory("DelimitedPayload", "encoder", 
>> "float").create(stream);
>> +    stream = tokenFilterFactory("EdgeNGram", "minGramSize", "1", 
>> "maxGramSize", "2").create(stream);
>> +
>> +    stream.reset();
>> +    while (stream.incrementToken()) {
>> +      PayloadAttribute payAttr = 
>> stream.getAttribute(PayloadAttribute.class);
>> +      assertNotNull(payAttr);
>> +      BytesRef payData = payAttr.getPayload();
>> +      assertNotNull(payData);
>> +      float payFloat = PayloadHelper.decodeFloat(payData.bytes);
>> +      assertEquals(0.1f, payFloat, 0.0f);
>> +    }
>> +    stream.end();
>> +    stream.close();
>> +  }
>> 
>>   /** Test that bogus arguments result in exception */
>>   public void testBogusArguments() throws Exception {
>> 
> 

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