refactor queries

git-svn-id: https://svn.apache.org/repos/asf/maven/repository-manager/trunk@412288 13f79535-47bb-0310-9956-ffa450edef68

maven-repository-indexer/src/main/java/org/apache/maven/repository/indexing/DefaultRepositoryIndexSearcher.java

@@ -17,13 +17,9 @@ package org.apache.maven.repository.indexing;
  */
 
 import org.apache.lucene.document.Document;
-import org.apache.lucene.index.Term;
 import org.apache.lucene.queryParser.ParseException;
-import org.apache.lucene.queryParser.QueryParser;
-import org.apache.lucene.search.BooleanQuery;
 import org.apache.lucene.search.Hits;
 import org.apache.lucene.search.IndexSearcher;
-import org.apache.lucene.search.TermQuery;
 import org.apache.maven.artifact.Artifact;
 import org.apache.maven.artifact.factory.ArtifactFactory;
 import org.apache.maven.artifact.repository.metadata.ArtifactRepositoryMetadata;
@@ -32,11 +28,7 @@ import org.apache.maven.artifact.repository.metadata.RepositoryMetadata;
 import org.apache.maven.artifact.repository.metadata.SnapshotArtifactRepositoryMetadata;
 import org.apache.maven.artifact.repository.metadata.io.xpp3.MetadataXpp3Reader;
 import org.apache.maven.model.io.xpp3.MavenXpp3Reader;
-import org.apache.maven.repository.indexing.query.CompoundQuery;
-import org.apache.maven.repository.indexing.query.CompoundQueryTerm;
 import org.apache.maven.repository.indexing.query.Query;
-import org.apache.maven.repository.indexing.query.RangeQuery;
-import org.apache.maven.repository.indexing.query.SinglePhraseQuery;
 import org.codehaus.plexus.logging.AbstractLogEnabled;
 import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
 
@@ -135,31 +127,6 @@ public class DefaultRepositoryIndexSearcher
         return docs;
     }
 
-    /**
-     * Method to create a lucene Query object from a single query phrase
-     *
-     * @param field the index field name to search into
-     * @param value the index field value to match the field with
-     * @return a lucene Query object representing the query phrase field = value
-     * @throws ParseException
-     */
-    private org.apache.lucene.search.Query createLuceneQuery( String field, String value )
-        throws ParseException
-    {
-        org.apache.lucene.search.Query qry;
-        if ( index.isKeywordField( field ) )
-        {
-            Term term = new Term( field, value );
-            qry = new TermQuery( term );
-        }
-        else
-        {
-            QueryParser parser = new QueryParser( field, index.getAnalyzer() );
-            qry = parser.parse( value );
-        }
-        return qry;
-    }
-
     /**
      * Method to create a lucene Query object by converting a prepared Query object
      *
@@ -170,44 +137,7 @@ public class DefaultRepositoryIndexSearcher
     private org.apache.lucene.search.Query createLuceneQuery( Query query )
         throws ParseException
     {
-        org.apache.lucene.search.Query retVal;
-
-        if ( query instanceof CompoundQuery )
-        {
-            BooleanQuery booleanQuery = new BooleanQuery();
-            CompoundQuery compoundQuery = (CompoundQuery) query;
-            List queries = compoundQuery.getQueries();
-            for ( Iterator i = queries.iterator(); i.hasNext(); )
-            {
-                CompoundQueryTerm subquery = (CompoundQueryTerm) i.next();
-
-                org.apache.lucene.search.Query luceneQuery = createLuceneQuery( subquery.getQuery() );
-
-                booleanQuery.add( luceneQuery, subquery.isRequired(), subquery.isProhibited() );
-            }
-            retVal = booleanQuery;
-        }
-        else if ( query instanceof RangeQuery )
-        {
-            RangeQuery rq = (RangeQuery) query;
-            List queries = rq.getQueries();
-            Iterator iter = queries.iterator();
-            Term begin = null, end = null;
-            if ( queries.size() == 2 )
-            {
-                SinglePhraseQuery qry = (SinglePhraseQuery) iter.next();
-                begin = new Term( qry.getField(), qry.getValue() );
-                qry = (SinglePhraseQuery) iter.next();
-                end = new Term( qry.getField(), qry.getValue() );
-            }
-            retVal = new org.apache.lucene.search.RangeQuery( begin, end, rq.isInclusive() );
-        }
-        else
-        {
-            SinglePhraseQuery singlePhraseQuery = (SinglePhraseQuery) query;
-            retVal = createLuceneQuery( singlePhraseQuery.getField(), singlePhraseQuery.getValue() );
-        }
-        return retVal;
+        return query.createLuceneQuery( index );
     }
 
     /**

maven-repository-indexer/src/main/java/org/apache/maven/repository/indexing/query/CompoundQuery.java

@@ -16,7 +16,12 @@ package org.apache.maven.repository.indexing.query;
  * limitations under the License.
  */
 
+import org.apache.lucene.queryParser.ParseException;
+import org.apache.lucene.search.BooleanQuery;
+import org.apache.maven.repository.indexing.RepositoryIndex;
+
 import java.util.ArrayList;
+import java.util.Iterator;
 import java.util.List;
 
 /**
@@ -79,4 +84,20 @@ public class CompoundQuery
     {
         return queries;
     }
+
+    public org.apache.lucene.search.Query createLuceneQuery( RepositoryIndex index )
+        throws ParseException
+    {
+        BooleanQuery booleanQuery = new BooleanQuery();
+        List queries = this.queries;
+        for ( Iterator i = queries.iterator(); i.hasNext(); )
+        {
+            CompoundQueryTerm subquery = (CompoundQueryTerm) i.next();
+
+            org.apache.lucene.search.Query luceneQuery = subquery.getQuery().createLuceneQuery( index );
+
+            booleanQuery.add( luceneQuery, subquery.isRequired(), subquery.isProhibited() );
+        }
+        return booleanQuery;
+    }
 }

maven-repository-indexer/src/main/java/org/apache/maven/repository/indexing/query/Query.java

@@ -1,5 +1,8 @@
 package org.apache.maven.repository.indexing.query;
 
+import org.apache.lucene.queryParser.ParseException;
+import org.apache.maven.repository.indexing.RepositoryIndex;
+
 /*
  * Copyright 2001-2005 The Apache Software Foundation.
  *
@@ -24,4 +27,6 @@ package org.apache.maven.repository.indexing.query;
  */
 public interface Query
 {
+    org.apache.lucene.search.Query createLuceneQuery( RepositoryIndex index )
+        throws ParseException;
 }

maven-repository-indexer/src/main/java/org/apache/maven/repository/indexing/query/RangeQuery.java

@@ -16,7 +16,11 @@ package org.apache.maven.repository.indexing.query;
  * limitations under the License.
  */
 
+import org.apache.lucene.index.Term;
+import org.apache.maven.repository.indexing.RepositoryIndex;
+
 import java.util.ArrayList;
+import java.util.Iterator;
 import java.util.List;
 
 /**
@@ -27,7 +31,7 @@ import java.util.List;
 public class RangeQuery
     implements Query
 {
-    List queries = new ArrayList();
+    private List queries = new ArrayList();
 
     private boolean inclusive;
 
@@ -50,4 +54,20 @@ public class RangeQuery
     {
         return inclusive;
     }
+
+    public org.apache.lucene.search.Query createLuceneQuery( RepositoryIndex index )
+    {
+        List queries = this.queries;
+        Iterator iter = queries.iterator();
+        Term begin = null;
+        Term end = null;
+        if ( queries.size() == 2 )
+        {
+            SinglePhraseQuery qry = (SinglePhraseQuery) iter.next();
+            begin = new Term( qry.getField(), qry.getValue() );
+            qry = (SinglePhraseQuery) iter.next();
+            end = new Term( qry.getField(), qry.getValue() );
+        }
+        return new org.apache.lucene.search.RangeQuery( begin, end, this.inclusive );
+    }
 }

maven-repository-indexer/src/main/java/org/apache/maven/repository/indexing/query/SinglePhraseQuery.java

@@ -1,5 +1,11 @@
 package org.apache.maven.repository.indexing.query;
 
+import org.apache.lucene.index.Term;
+import org.apache.lucene.queryParser.ParseException;
+import org.apache.lucene.queryParser.QueryParser;
+import org.apache.lucene.search.TermQuery;
+import org.apache.maven.repository.indexing.RepositoryIndex;
+
 /*
  * Copyright 2001-2005 The Apache Software Foundation.
  *
@@ -60,4 +66,21 @@ public class SinglePhraseQuery
     {
         return value;
     }
+
+    public org.apache.lucene.search.Query createLuceneQuery( RepositoryIndex index )
+        throws ParseException
+    {
+        org.apache.lucene.search.Query qry;
+        if ( index.isKeywordField( this.field ) )
+        {
+            Term term = new Term( this.field, this.value );
+            qry = new TermQuery( term );
+        }
+        else
+        {
+            QueryParser parser = new QueryParser( this.field, index.getAnalyzer() );
+            qry = parser.parse( this.value );
+        }
+        return qry;
+    }
 }