Re: Error instantiating a Custom Filter in Solr
Thanks guys, I got the problem resolved. It was a constructor API mismatch between the code I wrote and the library I used. I used the latest lucene-common 4.5.0 with my sample code and the startup issue was resolved. related stackoverflow discussion : http://stackoverflow.com/questions/19840129/error-instantiating-the-custom-filterfactory-class-in-solr Regards, Dileepa On Fri, Nov 8, 2013 at 9:21 PM, Jack Krupansky j...@basetechnology.comwrote: Thanks for the plug Erick, but my deep dive doesn't go quite that deep (yet.) But I'm sure a 2,500 page book on how to develop all manner of custom Solr plugin would indeed be valuable though. But I do have plenty of example of using the many builtin Solr analysis filters. -- Jack Krupansky -Original Message- From: Erick Erickson Sent: Friday, November 08, 2013 10:36 AM To: solr-user@lucene.apache.org Subject: Re: Error instantiating a Custom Filter in Solr Well, I think Jack Krupansky's book has some examples, at $10 it's probably a steal. Best, Erick On Fri, Nov 8, 2013 at 1:49 AM, Dileepa Jayakody dileepajayak...@gmail.comwrote: Hi Erick, Thanks a lot for the pointer. I looked at the LowerCaseFilterFactory class [1] and it's parent abstract class AbstractAnalysisFactory API [2] , and modified my custom filter factory class as below; public class ContentFilterFactory extends TokenFilterFactory { public ContentFilterFactory() { super(); } @Override public void init(MapString, String args) { super.init(args); } @Override public ContentFilter create(TokenStream input) { assureMatchVersion(); return new ContentFilter(input); } } I have called the parent's init method as above, but I'm still getting the same error of : java.lang.NoSuchMethodException: com.solr.test.analyzer. ContentFilterFactory.init(java.util.Map) Any input on this? Can some one please point me to a doc/blog or any sample to implement a custom filter with Solr 4.0 I'm using Solr 4.5.0 server. Thanks, Dileepa [1] http://search-lucene.com/c/Lucene:analysis/common/src/ java/org/apache/lucene/analysis/core/LowerCaseFilterFactory.java [2] https://lucene.apache.org/core/4_2_0/analyzers-common/ org/apache/lucene/analysis/util/AbstractAnalysisFactory.html On Fri, Nov 8, 2013 at 4:25 AM, Erick Erickson erickerick...@gmail.com wrote: Well, the example you linked to is based on 3.6, and things have changed assuming you're using 4.0. It's probably that your ContentFilter isn't implementing what it needs to or it's not subclassing from the correct class for 4.0. Maybe take a look at something simple like LowerCaseFilterFactory and use that as a model, although you probably don't need to implement the MultiTermAware bit. FWIW, Erick On Thu, Nov 7, 2013 at 1:31 PM, Dileepa Jayakody dileepajayak...@gmail.comwrote: Hi All, I'm a novice in Solr and I'm continuously bumping into problems with my custom filter I'm trying to use for analyzing a fieldType during indexing as below; fieldType name=stanbolRequestType class=solr.TextField analyzer type=index tokenizer class=solr.KeywordTokenizerFactory/ filter class= com.solr.test.analyzer.ContentFilterFactory/ /analyzer /fieldType Below is my custom FilterFactory class; *public class ContentFilterFactory extends TokenFilterFactory {* * public ContentFilterFactory() {* * super();* * }* * @Override* * public TokenStream create(TokenStream input) {* * return new ContentFilter(input);* * }* *}* I'm getting below error stack trace [1] caused by a NoSuchMethodException when starting the server. Solr complains that it cannot init the Plugin (my custom filter) as the FilterFactory class doesn't have a init method; But in the example [2] I was following didn't have any notion of a init method in the FilterFactory class, nor I was required to override an init method when extending TokenFilterFactory class. Can someone please help me resolve this error and get my custom filter working? Thanks, Dileepa [1] Caused by: org.apache.solr.common.SolrException: Plugin init failure for [schema.xml] fieldType stanbolRequestType: Plugin init failure for [schema.xml] analyzer/filter: Error instantiating class: 'com.solr.test.analyzer.ContentFilterFactory' at org.apache.solr.util.plugin.AbstractPluginLoader.load( AbstractPluginLoader.java:177) at org.apache.solr.schema.IndexSchema.readSchema( IndexSchema.java:468) ... 13 more Caused by: org.apache.solr.common.SolrException: Plugin init failure for [schema.xml] analyzer/filter: Error instantiating class: 'com.solr.test.analyzer.ContentFilterFactory' at org.apache.solr.util.plugin.AbstractPluginLoader.load( AbstractPluginLoader.java:177) at org.apache.solr.schema.FieldTypePluginLoader.readAnalyzer
Re: Error instantiating a Custom Filter in Solr
Well, I think Jack Krupansky's book has some examples, at $10 it's probably a steal. Best, Erick On Fri, Nov 8, 2013 at 1:49 AM, Dileepa Jayakody dileepajayak...@gmail.comwrote: Hi Erick, Thanks a lot for the pointer. I looked at the LowerCaseFilterFactory class [1] and it's parent abstract class AbstractAnalysisFactory API [2] , and modified my custom filter factory class as below; public class ContentFilterFactory extends TokenFilterFactory { public ContentFilterFactory() { super(); } @Override public void init(MapString, String args) { super.init(args); } @Override public ContentFilter create(TokenStream input) { assureMatchVersion(); return new ContentFilter(input); } } I have called the parent's init method as above, but I'm still getting the same error of : java.lang.NoSuchMethodException: com.solr.test.analyzer. ContentFilterFactory.init(java.util.Map) Any input on this? Can some one please point me to a doc/blog or any sample to implement a custom filter with Solr 4.0 I'm using Solr 4.5.0 server. Thanks, Dileepa [1] http://search-lucene.com/c/Lucene:analysis/common/src/java/org/apache/lucene/analysis/core/LowerCaseFilterFactory.java [2] https://lucene.apache.org/core/4_2_0/analyzers-common/org/apache/lucene/analysis/util/AbstractAnalysisFactory.html On Fri, Nov 8, 2013 at 4:25 AM, Erick Erickson erickerick...@gmail.com wrote: Well, the example you linked to is based on 3.6, and things have changed assuming you're using 4.0. It's probably that your ContentFilter isn't implementing what it needs to or it's not subclassing from the correct class for 4.0. Maybe take a look at something simple like LowerCaseFilterFactory and use that as a model, although you probably don't need to implement the MultiTermAware bit. FWIW, Erick On Thu, Nov 7, 2013 at 1:31 PM, Dileepa Jayakody dileepajayak...@gmail.comwrote: Hi All, I'm a novice in Solr and I'm continuously bumping into problems with my custom filter I'm trying to use for analyzing a fieldType during indexing as below; fieldType name=stanbolRequestType class=solr.TextField analyzer type=index tokenizer class=solr.KeywordTokenizerFactory/ filter class= com.solr.test.analyzer.ContentFilterFactory/ /analyzer /fieldType Below is my custom FilterFactory class; *public class ContentFilterFactory extends TokenFilterFactory {* * public ContentFilterFactory() {* * super();* * }* * @Override* * public TokenStream create(TokenStream input) {* * return new ContentFilter(input);* * }* *}* I'm getting below error stack trace [1] caused by a NoSuchMethodException when starting the server. Solr complains that it cannot init the Plugin (my custom filter) as the FilterFactory class doesn't have a init method; But in the example [2] I was following didn't have any notion of a init method in the FilterFactory class, nor I was required to override an init method when extending TokenFilterFactory class. Can someone please help me resolve this error and get my custom filter working? Thanks, Dileepa [1] Caused by: org.apache.solr.common.SolrException: Plugin init failure for [schema.xml] fieldType stanbolRequestType: Plugin init failure for [schema.xml] analyzer/filter: Error instantiating class: 'com.solr.test.analyzer.ContentFilterFactory' at org.apache.solr.util.plugin.AbstractPluginLoader.load(AbstractPluginLoader.java:177) at org.apache.solr.schema.IndexSchema.readSchema(IndexSchema.java:468) ... 13 more Caused by: org.apache.solr.common.SolrException: Plugin init failure for [schema.xml] analyzer/filter: Error instantiating class: 'com.solr.test.analyzer.ContentFilterFactory' at org.apache.solr.util.plugin.AbstractPluginLoader.load(AbstractPluginLoader.java:177) at org.apache.solr.schema.FieldTypePluginLoader.readAnalyzer(FieldTypePluginLoader.java:400) at org.apache.solr.schema.FieldTypePluginLoader.create(FieldTypePluginLoader.java:95) at org.apache.solr.schema.FieldTypePluginLoader.create(FieldTypePluginLoader.java:43) at org.apache.solr.util.plugin.AbstractPluginLoader.load(AbstractPluginLoader.java:151) ... 14 more Caused by: org.apache.solr.common.SolrException: Error instantiating class: 'com.solr.test.analyzer.ContentFilterFactory' at org.apache.solr.core.SolrResourceLoader.newInstance(SolrResourceLoader.java:556) at org.apache.solr.schema.FieldTypePluginLoader$3.create(FieldTypePluginLoader.java:382) at org.apache.solr.schema.FieldTypePluginLoader$3.create(FieldTypePluginLoader.java:376) at org.apache.solr.util.plugin.AbstractPluginLoader.load(AbstractPluginLoader.java:151) ... 18 more Caused by: java.lang.NoSuchMethodException:
Re: Error instantiating a Custom Filter in Solr
Thanks for the plug Erick, but my deep dive doesn't go quite that deep (yet.) But I'm sure a 2,500 page book on how to develop all manner of custom Solr plugin would indeed be valuable though. But I do have plenty of example of using the many builtin Solr analysis filters. -- Jack Krupansky -Original Message- From: Erick Erickson Sent: Friday, November 08, 2013 10:36 AM To: solr-user@lucene.apache.org Subject: Re: Error instantiating a Custom Filter in Solr Well, I think Jack Krupansky's book has some examples, at $10 it's probably a steal. Best, Erick On Fri, Nov 8, 2013 at 1:49 AM, Dileepa Jayakody dileepajayak...@gmail.comwrote: Hi Erick, Thanks a lot for the pointer. I looked at the LowerCaseFilterFactory class [1] and it's parent abstract class AbstractAnalysisFactory API [2] , and modified my custom filter factory class as below; public class ContentFilterFactory extends TokenFilterFactory { public ContentFilterFactory() { super(); } @Override public void init(MapString, String args) { super.init(args); } @Override public ContentFilter create(TokenStream input) { assureMatchVersion(); return new ContentFilter(input); } } I have called the parent's init method as above, but I'm still getting the same error of : java.lang.NoSuchMethodException: com.solr.test.analyzer. ContentFilterFactory.init(java.util.Map) Any input on this? Can some one please point me to a doc/blog or any sample to implement a custom filter with Solr 4.0 I'm using Solr 4.5.0 server. Thanks, Dileepa [1] http://search-lucene.com/c/Lucene:analysis/common/src/java/org/apache/lucene/analysis/core/LowerCaseFilterFactory.java [2] https://lucene.apache.org/core/4_2_0/analyzers-common/org/apache/lucene/analysis/util/AbstractAnalysisFactory.html On Fri, Nov 8, 2013 at 4:25 AM, Erick Erickson erickerick...@gmail.com wrote: Well, the example you linked to is based on 3.6, and things have changed assuming you're using 4.0. It's probably that your ContentFilter isn't implementing what it needs to or it's not subclassing from the correct class for 4.0. Maybe take a look at something simple like LowerCaseFilterFactory and use that as a model, although you probably don't need to implement the MultiTermAware bit. FWIW, Erick On Thu, Nov 7, 2013 at 1:31 PM, Dileepa Jayakody dileepajayak...@gmail.comwrote: Hi All, I'm a novice in Solr and I'm continuously bumping into problems with my custom filter I'm trying to use for analyzing a fieldType during indexing as below; fieldType name=stanbolRequestType class=solr.TextField analyzer type=index tokenizer class=solr.KeywordTokenizerFactory/ filter class= com.solr.test.analyzer.ContentFilterFactory/ /analyzer /fieldType Below is my custom FilterFactory class; *public class ContentFilterFactory extends TokenFilterFactory {* * public ContentFilterFactory() {* * super();* * }* * @Override* * public TokenStream create(TokenStream input) {* * return new ContentFilter(input);* * }* *}* I'm getting below error stack trace [1] caused by a NoSuchMethodException when starting the server. Solr complains that it cannot init the Plugin (my custom filter) as the FilterFactory class doesn't have a init method; But in the example [2] I was following didn't have any notion of a init method in the FilterFactory class, nor I was required to override an init method when extending TokenFilterFactory class. Can someone please help me resolve this error and get my custom filter working? Thanks, Dileepa [1] Caused by: org.apache.solr.common.SolrException: Plugin init failure for [schema.xml] fieldType stanbolRequestType: Plugin init failure for [schema.xml] analyzer/filter: Error instantiating class: 'com.solr.test.analyzer.ContentFilterFactory' at org.apache.solr.util.plugin.AbstractPluginLoader.load(AbstractPluginLoader.java:177) at org.apache.solr.schema.IndexSchema.readSchema(IndexSchema.java:468) ... 13 more Caused by: org.apache.solr.common.SolrException: Plugin init failure for [schema.xml] analyzer/filter: Error instantiating class: 'com.solr.test.analyzer.ContentFilterFactory' at org.apache.solr.util.plugin.AbstractPluginLoader.load(AbstractPluginLoader.java:177) at org.apache.solr.schema.FieldTypePluginLoader.readAnalyzer(FieldTypePluginLoader.java:400) at org.apache.solr.schema.FieldTypePluginLoader.create(FieldTypePluginLoader.java:95) at org.apache.solr.schema.FieldTypePluginLoader.create(FieldTypePluginLoader.java:43) at org.apache.solr.util.plugin.AbstractPluginLoader.load(AbstractPluginLoader.java:151) ... 14 more Caused by: org.apache.solr.common.SolrException: Error instantiating class: 'com.solr.test.analyzer.ContentFilterFactory' at org.apache.solr.core.SolrResourceLoader.newInstance(SolrResourceLoader.java:556) at org.apache.solr.schema.FieldTypePluginLoader$3.create
Error instantiating a Custom Filter in Solr
Hi All, I'm a novice in Solr and I'm continuously bumping into problems with my custom filter I'm trying to use for analyzing a fieldType during indexing as below; fieldType name=stanbolRequestType class=solr.TextField analyzer type=index tokenizer class=solr.KeywordTokenizerFactory/ filter class= com.solr.test.analyzer.ContentFilterFactory/ /analyzer /fieldType Below is my custom FilterFactory class; *public class ContentFilterFactory extends TokenFilterFactory {* * public ContentFilterFactory() {* * super();* * }* * @Override* * public TokenStream create(TokenStream input) {* * return new ContentFilter(input);* * }* *}* I'm getting below error stack trace [1] caused by a NoSuchMethodException when starting the server. Solr complains that it cannot init the Plugin (my custom filter) as the FilterFactory class doesn't have a init method; But in the example [2] I was following didn't have any notion of a init method in the FilterFactory class, nor I was required to override an init method when extending TokenFilterFactory class. Can someone please help me resolve this error and get my custom filter working? Thanks, Dileepa [1] Caused by: org.apache.solr.common.SolrException: Plugin init failure for [schema.xml] fieldType stanbolRequestType: Plugin init failure for [schema.xml] analyzer/filter: Error instantiating class: 'com.solr.test.analyzer.ContentFilterFactory' at org.apache.solr.util.plugin.AbstractPluginLoader.load(AbstractPluginLoader.java:177) at org.apache.solr.schema.IndexSchema.readSchema(IndexSchema.java:468) ... 13 more Caused by: org.apache.solr.common.SolrException: Plugin init failure for [schema.xml] analyzer/filter: Error instantiating class: 'com.solr.test.analyzer.ContentFilterFactory' at org.apache.solr.util.plugin.AbstractPluginLoader.load(AbstractPluginLoader.java:177) at org.apache.solr.schema.FieldTypePluginLoader.readAnalyzer(FieldTypePluginLoader.java:400) at org.apache.solr.schema.FieldTypePluginLoader.create(FieldTypePluginLoader.java:95) at org.apache.solr.schema.FieldTypePluginLoader.create(FieldTypePluginLoader.java:43) at org.apache.solr.util.plugin.AbstractPluginLoader.load(AbstractPluginLoader.java:151) ... 14 more Caused by: org.apache.solr.common.SolrException: Error instantiating class: 'com.solr.test.analyzer.ContentFilterFactory' at org.apache.solr.core.SolrResourceLoader.newInstance(SolrResourceLoader.java:556) at org.apache.solr.schema.FieldTypePluginLoader$3.create(FieldTypePluginLoader.java:382) at org.apache.solr.schema.FieldTypePluginLoader$3.create(FieldTypePluginLoader.java:376) at org.apache.solr.util.plugin.AbstractPluginLoader.load(AbstractPluginLoader.java:151) ... 18 more Caused by: java.lang.NoSuchMethodException: com.solr.test.analyzer.ContentFilterFactory.init(java.util.Map) at java.lang.Class.getConstructor0(Class.java:2810) at java.lang.Class.getConstructor(Class.java:1718) at org.apache.solr.core.SolrResourceLoader.newInstance(SolrResourceLoader.java:552) ... 21 more [2] http://solr.pl/en/2012/05/14/developing-your-own-solr-filter/
Re: Error instantiating a Custom Filter in Solr
Well, the example you linked to is based on 3.6, and things have changed assuming you're using 4.0. It's probably that your ContentFilter isn't implementing what it needs to or it's not subclassing from the correct class for 4.0. Maybe take a look at something simple like LowerCaseFilterFactory and use that as a model, although you probably don't need to implement the MultiTermAware bit. FWIW, Erick On Thu, Nov 7, 2013 at 1:31 PM, Dileepa Jayakody dileepajayak...@gmail.comwrote: Hi All, I'm a novice in Solr and I'm continuously bumping into problems with my custom filter I'm trying to use for analyzing a fieldType during indexing as below; fieldType name=stanbolRequestType class=solr.TextField analyzer type=index tokenizer class=solr.KeywordTokenizerFactory/ filter class= com.solr.test.analyzer.ContentFilterFactory/ /analyzer /fieldType Below is my custom FilterFactory class; *public class ContentFilterFactory extends TokenFilterFactory {* * public ContentFilterFactory() {* * super();* * }* * @Override* * public TokenStream create(TokenStream input) {* * return new ContentFilter(input);* * }* *}* I'm getting below error stack trace [1] caused by a NoSuchMethodException when starting the server. Solr complains that it cannot init the Plugin (my custom filter) as the FilterFactory class doesn't have a init method; But in the example [2] I was following didn't have any notion of a init method in the FilterFactory class, nor I was required to override an init method when extending TokenFilterFactory class. Can someone please help me resolve this error and get my custom filter working? Thanks, Dileepa [1] Caused by: org.apache.solr.common.SolrException: Plugin init failure for [schema.xml] fieldType stanbolRequestType: Plugin init failure for [schema.xml] analyzer/filter: Error instantiating class: 'com.solr.test.analyzer.ContentFilterFactory' at org.apache.solr.util.plugin.AbstractPluginLoader.load(AbstractPluginLoader.java:177) at org.apache.solr.schema.IndexSchema.readSchema(IndexSchema.java:468) ... 13 more Caused by: org.apache.solr.common.SolrException: Plugin init failure for [schema.xml] analyzer/filter: Error instantiating class: 'com.solr.test.analyzer.ContentFilterFactory' at org.apache.solr.util.plugin.AbstractPluginLoader.load(AbstractPluginLoader.java:177) at org.apache.solr.schema.FieldTypePluginLoader.readAnalyzer(FieldTypePluginLoader.java:400) at org.apache.solr.schema.FieldTypePluginLoader.create(FieldTypePluginLoader.java:95) at org.apache.solr.schema.FieldTypePluginLoader.create(FieldTypePluginLoader.java:43) at org.apache.solr.util.plugin.AbstractPluginLoader.load(AbstractPluginLoader.java:151) ... 14 more Caused by: org.apache.solr.common.SolrException: Error instantiating class: 'com.solr.test.analyzer.ContentFilterFactory' at org.apache.solr.core.SolrResourceLoader.newInstance(SolrResourceLoader.java:556) at org.apache.solr.schema.FieldTypePluginLoader$3.create(FieldTypePluginLoader.java:382) at org.apache.solr.schema.FieldTypePluginLoader$3.create(FieldTypePluginLoader.java:376) at org.apache.solr.util.plugin.AbstractPluginLoader.load(AbstractPluginLoader.java:151) ... 18 more Caused by: java.lang.NoSuchMethodException: com.solr.test.analyzer.ContentFilterFactory.init(java.util.Map) at java.lang.Class.getConstructor0(Class.java:2810) at java.lang.Class.getConstructor(Class.java:1718) at org.apache.solr.core.SolrResourceLoader.newInstance(SolrResourceLoader.java:552) ... 21 more [2] http://solr.pl/en/2012/05/14/developing-your-own-solr-filter/
Re: Error instantiating a Custom Filter in Solr
Hi Erick, Thanks a lot for the pointer. I looked at the LowerCaseFilterFactory class [1] and it's parent abstract class AbstractAnalysisFactory API [2] , and modified my custom filter factory class as below; public class ContentFilterFactory extends TokenFilterFactory { public ContentFilterFactory() { super(); } @Override public void init(MapString, String args) { super.init(args); } @Override public ContentFilter create(TokenStream input) { assureMatchVersion(); return new ContentFilter(input); } } I have called the parent's init method as above, but I'm still getting the same error of : java.lang.NoSuchMethodException: com.solr.test.analyzer. ContentFilterFactory.init(java.util.Map) Any input on this? Can some one please point me to a doc/blog or any sample to implement a custom filter with Solr 4.0 I'm using Solr 4.5.0 server. Thanks, Dileepa [1] http://search-lucene.com/c/Lucene:analysis/common/src/java/org/apache/lucene/analysis/core/LowerCaseFilterFactory.java [2] https://lucene.apache.org/core/4_2_0/analyzers-common/org/apache/lucene/analysis/util/AbstractAnalysisFactory.html On Fri, Nov 8, 2013 at 4:25 AM, Erick Erickson erickerick...@gmail.comwrote: Well, the example you linked to is based on 3.6, and things have changed assuming you're using 4.0. It's probably that your ContentFilter isn't implementing what it needs to or it's not subclassing from the correct class for 4.0. Maybe take a look at something simple like LowerCaseFilterFactory and use that as a model, although you probably don't need to implement the MultiTermAware bit. FWIW, Erick On Thu, Nov 7, 2013 at 1:31 PM, Dileepa Jayakody dileepajayak...@gmail.comwrote: Hi All, I'm a novice in Solr and I'm continuously bumping into problems with my custom filter I'm trying to use for analyzing a fieldType during indexing as below; fieldType name=stanbolRequestType class=solr.TextField analyzer type=index tokenizer class=solr.KeywordTokenizerFactory/ filter class= com.solr.test.analyzer.ContentFilterFactory/ /analyzer /fieldType Below is my custom FilterFactory class; *public class ContentFilterFactory extends TokenFilterFactory {* * public ContentFilterFactory() {* * super();* * }* * @Override* * public TokenStream create(TokenStream input) {* * return new ContentFilter(input);* * }* *}* I'm getting below error stack trace [1] caused by a NoSuchMethodException when starting the server. Solr complains that it cannot init the Plugin (my custom filter) as the FilterFactory class doesn't have a init method; But in the example [2] I was following didn't have any notion of a init method in the FilterFactory class, nor I was required to override an init method when extending TokenFilterFactory class. Can someone please help me resolve this error and get my custom filter working? Thanks, Dileepa [1] Caused by: org.apache.solr.common.SolrException: Plugin init failure for [schema.xml] fieldType stanbolRequestType: Plugin init failure for [schema.xml] analyzer/filter: Error instantiating class: 'com.solr.test.analyzer.ContentFilterFactory' at org.apache.solr.util.plugin.AbstractPluginLoader.load(AbstractPluginLoader.java:177) at org.apache.solr.schema.IndexSchema.readSchema(IndexSchema.java:468) ... 13 more Caused by: org.apache.solr.common.SolrException: Plugin init failure for [schema.xml] analyzer/filter: Error instantiating class: 'com.solr.test.analyzer.ContentFilterFactory' at org.apache.solr.util.plugin.AbstractPluginLoader.load(AbstractPluginLoader.java:177) at org.apache.solr.schema.FieldTypePluginLoader.readAnalyzer(FieldTypePluginLoader.java:400) at org.apache.solr.schema.FieldTypePluginLoader.create(FieldTypePluginLoader.java:95) at org.apache.solr.schema.FieldTypePluginLoader.create(FieldTypePluginLoader.java:43) at org.apache.solr.util.plugin.AbstractPluginLoader.load(AbstractPluginLoader.java:151) ... 14 more Caused by: org.apache.solr.common.SolrException: Error instantiating class: 'com.solr.test.analyzer.ContentFilterFactory' at org.apache.solr.core.SolrResourceLoader.newInstance(SolrResourceLoader.java:556) at org.apache.solr.schema.FieldTypePluginLoader$3.create(FieldTypePluginLoader.java:382) at org.apache.solr.schema.FieldTypePluginLoader$3.create(FieldTypePluginLoader.java:376) at org.apache.solr.util.plugin.AbstractPluginLoader.load(AbstractPluginLoader.java:151) ... 18 more Caused by: java.lang.NoSuchMethodException: com.solr.test.analyzer.ContentFilterFactory.init(java.util.Map) at java.lang.Class.getConstructor0(Class.java:2810) at java.lang.Class.getConstructor(Class.java:1718) at org.apache.solr.core.SolrResourceLoader.newInstance(SolrResourceLoader.java:552) ... 21 more [2] http://solr.pl/en/2012/05/14/developing-your-own-solr-filter/