skroutz / elasticsearch-skroutz-greekstemmer Goto Github PK

Φίλε, μήπως μπορείς να μου πεις τι χρειάζεται να κάνω για να το ανανεώσω για ES 6?

Hi,

First of all I would like to congratulate you guys for the enhanced greek stemmer you worked on for the elasticsearch platform. I believe that Usage example is needed as well as a test case scenario to be sure that we have done the correct configuration.

I have installed plugins for turkish and greek but I couldn't work both in practice while creating new index.

There is an error like this

What should i do?

Thanks for helping.

I can't install the plugin, can you please help?

cd /usr/share/elasticsearch && sudo bin/plugin --install skroutz/elasticsearch-skroutz-greekstemmer/2.4.4.1
-> Installing skroutz/elasticsearch-skroutz-greekstemmer/2.4.4.1...
Trying http://download.elasticsearch.org/skroutz/elasticsearch-skroutz-greekstemmer/elasticsearch-skroutz-greekstemmer-2.4.4.1.zip...
Trying http://search.maven.org/remotecontent?filepath=skroutz/elasticsearch-skroutz-greekstemmer/2.4.4.1/elasticsearch-skroutz-greekstemmer-2.4.4.1.zip...
Trying https://oss.sonatype.org/service/local/repositories/releases/content/skroutz/elasticsearch-skroutz-greekstemmer/2.4.4.1/elasticsearch-skroutz-greekstemmer-2.4.4.1.zip...
Trying https://github.com/skroutz/elasticsearch-skroutz-greekstemmer/archive/2.4.4.1.zip...
Trying https://github.com/skroutz/elasticsearch-skroutz-greekstemmer/archive/master.zip...
Failed to install skroutz/elasticsearch-skroutz-greekstemmer/2.4.4.1, reason: failed to download out of all possible locations..., use --verbose to get detailed information

The problem is that UpdateStemmingSamples.java reads the file with UTF-8 encoding and replaces it with a file using the default encoding of the building computer. Subsequent builds fail.

Proposed changes (lines 27, 28):
FileOutputStream fileWriter = new FileOutputStream(file.getAbsoluteFile());
BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(fileWriter, StandardCharsets.UTF_8));

You should use parenthesis to resolve ambiguity here:
else if (len > 4 && endsWith(..) ..
to
else if (len > 4 && (endsWith(..) ...

https://github.com/skroutz/elasticsearch-skroutz-greekstemmer/blob/master/src/main/java/org/elasticsearch/index/analysis/SkroutzGreekStemmer.java#L813

Αποτυχία εγκατάστασης σε elasticsearch 2
ERROR: Could not find plugin descriptor 'plugin-descriptor.properties' in plugin zip

Hi!

Could you compile a new branch for ES 5.5.2?

Thank you :)

Cannot install on latest ES due to error:

sudo bin/elasticsearch-plugin install gr.skroutz:elasticsearch-skroutz-greekstemmer:5.4.2.1
-> Downloading gr.skroutz:elasticsearch-skroutz-greekstemmer:5.4.2.1 from maven central
[=================================================] 100%   
Warning: sha512 not found, falling back to sha1. This behavior is deprecated and will be removed in a future release. Please update the plugin to use a sha512 checksum.
ERROR: This plugin was built with an older plugin structure. Contact the plugin author to remove the intermediate "elasticsearch" directory within the plugin zip.

Any chance for an update here?

Version 1.1, Index :

    "index":{
        "analysis":{
            "analyzer":{
                "analyzer_startswith":{
                    "tokenizer":"keyword",
                    "filter":"lowercase"
                },
                "prefix-test-analyzer": {
                    "type": "custom",
                    "tokenizer": "standard",
                    "filter" : ["lowercase","stem_greek"]
                }
            },
            "filter" : {
                "mynGram" : {
                    "type" : "nGram",
                    "min_gram" : 2,
                    "max_gram" : 50
                },
                "stem_greek": {
                    "type":"skroutz_stem_greek"
                }
            },
            "tokenizer": {
                "prefix-test-tokenizer": {
                    "type": "path_hierarchy",
                    "delimiter": "."
                }
            }
        }
    }

Should have the same stem, but "Μονόφωτα" stems το "μονοφω" while "Μονόφωτο" stems to "Μονόφωτ"

How can be installed on ELK 5.1 or later?

Here is what I get:

sudo /usr/share/elasticsearch/bin/plugin -install skroutz/elasticsearch-skroutz-greekstemmer/0.0.1-> Installing skroutz/elasticsearch-skroutz-greekstemmer/0.0.1... Trying http://download.elasticsearch.org/skroutz/elasticsearch-skroutz-greekstemmer/elasticsearch-skroutz-greekstemmer-0.0.1.zip... Trying http://search.maven.org/remotecontent?filepath=skroutz/elasticsearch-skroutz-greekstemmer/0.0.1/elasticsearch-skroutz-greekstemmer-0.0.1.zip... Trying https://oss.sonatype.org/service/local/repositories/releases/content/skroutz/elasticsearch-skroutz-greekstemmer/0.0.1/elasticsearch-skroutz-greekstemmer-0.0.1.zip... Trying https://github.com/skroutz/elasticsearch-skroutz-greekstemmer/zipball/v0.0.1... (assuming site plugin) Failed to install skroutz/elasticsearch-skroutz-greekstemmer/0.0.1, reason: failed to download out of all possible locations..., use -verbose to get detailed information

rule0 of SkroutzGreekStemmer.java tries to handle special cases for specific word endings.
However, most of those cases concern whole words, rather than endings.
Eg. the word περατοσ is handled as an ending, and will also match υδατοπερατοσ and stem it as υδατοπερ, σαφωσ will match φωσ, etc.
Those case are false positive matches.

Most of the cases should be handled with string equality (rather than string suffix matching).
This should happen in an extra step before what now is rule0 and rule0 should have less special cases to handle

The exceptional cases of the various analysis steps are not uniformly handled.
Some are static variables and some are coded into if clauses.
All of them are hardcoded and can only change by altering the source files.
We can make an effort to

1. handle them uniformly
2. load them from a resource file

Hi, I want to install it in my current elasticsearch which is v.7.17.6

Installation fails with the following message:

Exception in thread "main" java.lang.IllegalArgumentException: Plugin [elasticsearch-skroutz-greekstemmer] was built for Elasticsearch version 7.7.0 but version 7.17.6 is running

How can I update the code for my current elasticsearch version?