svn commit: r767705 [7/31] - in /maven/mercury/trunk/mercury-core: ./ src/ src/main/ src/main/java/ src/main/java/org/ src/main/java/org/apache/ src/main/java/org/apache/maven/ src/main/java/org/apache/maven/mercury/ src/main/java/org/apache/maven/merc...

[og...@apache.org]

Added: maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/metadata/sat/SatHelper.java
URL: http://svn.apache.org/viewvc/maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/metadata/sat/SatHelper.java?rev=767705&view=auto
==============================================================================
--- maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/metadata/sat/SatHelper.java (added)
+++ maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/metadata/sat/SatHelper.java Wed Apr 22 22:56:48 2009
@@ -0,0 +1,147 @@
+/**
+ *  Licensed to the Apache Software Foundation (ASF) under one
+ *  or more contributor license agreements.  See the NOTICE file
+ *  distributed with this work for additional information
+ *  regarding copyright ownership.  The ASF licenses this file
+ *  to you under the Apache License, Version 2.0 (the
+ *  "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *  Unless required by applicable law or agreed to in writing,
+ *  software distributed under the License is distributed on an
+ *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *  KIND, either express or implied.  See the License for the
+ *  specific language governing permissions and limitations
+ *  under the License.
+ */
+package org.apache.maven.mercury.metadata.sat;
+
+import java.math.BigInteger;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.maven.mercury.artifact.ArtifactMetadata;
+import org.sat4j.core.ReadOnlyVec;
+import org.sat4j.core.ReadOnlyVecInt;
+import org.sat4j.core.Vec;
+import org.sat4j.core.VecInt;
+import org.sat4j.specs.IConstr;
+import org.sat4j.specs.IVec;
+import org.sat4j.specs.IVecInt;
+
+/**
+ * @author <a href="oleg@codehaus.org">Oleg Gusakov</a>
+ */
+public class SatHelper
+{
+  //-----------------------------------------------------------------------
+  public static final List<ArtifactMetadata> createList( String... uris )
+  {
+    List<ArtifactMetadata> aml = new ArrayList<ArtifactMetadata>( uris.length );
+    for( String uri : uris )
+    {
+      aml.add( new ArtifactMetadata(uri) );
+    }
+    return aml;
+  }
+  //-----------------------------------------------------------------------
+  public static final IVecInt getSmallOnes( int... ints )
+  {
+    VecInt res = new VecInt( ints );
+    return new ReadOnlyVecInt(res);
+  }
+  //-----------------------------------------------------------------------
+  public static final IVecInt getSmallOnes( int first, int second )
+  {
+    return getSmallOnes( new int [] {first, second} );
+  }
+  //-----------------------------------------------------------------------
+  public static int [] toIntArray( int first, int... ints )
+  {
+    int [] lits = new int[ ints.length+1 ];
+    lits[0] = first;
+    int ptr = 1;
+
+    for( int i : ints )
+      lits[ptr++] = i;
+    
+    return lits;
+  }
+  //-----------------------------------------------------------------------
+  private static final IVec<BigInteger> toVec( BigInteger... bis  )
+  {
+    return new ReadOnlyVec<BigInteger>( new Vec<BigInteger>( bis ) );
+  }
+  //-----------------------------------------------------------------------
+  public static final IVec<BigInteger> getBigOnes( int... ones )
+  {
+    BigInteger [] res = new BigInteger[ ones.length ];
+    
+    for( int i=0; i<ones.length; i++ )
+      res[ i ] = BigInteger.valueOf( ones[i] );
+    
+    return toVec( res );
+  }
+  //-----------------------------------------------------------------------
+  public static final IVec<BigInteger> getBigOnes( int nOnes, boolean negate )
+  {
+    BigInteger [] res = new BigInteger[ nOnes ];
+    BigInteger bi = negate ? BigInteger.ONE.negate() : BigInteger.ONE;
+    
+    for( int i=0; i<nOnes; i++ )
+      res[i] = bi;
+    
+    return toVec(res);
+  }
+  //-----------------------------------------------------------------------
+  public static final IVec<BigInteger> getBigOnes( int first, int nOnes, boolean negateOnes )
+  {
+    int len = nOnes + 1;
+
+    BigInteger [] res = new BigInteger[ len ];
+    res[ 0 ] = BigInteger.valueOf(first);
+    
+    BigInteger bi = negateOnes ? BigInteger.ONE.negate() : BigInteger.ONE;
+    
+    for( int i=0; i<nOnes; i++ )
+      res[i+1] = bi;
+    
+    return toVec(res);
+  }
+  //-----------------------------------------------------------------------
+  public static final String vectorToString( IVecInt vec )
+  {
+    if( vec == null || vec.size() < 1 )
+      return "[]";
+    
+    StringBuilder sb = new StringBuilder();
+    String comma = "";
+    
+    for( int i=0; i<vec.size(); i++ )
+    {
+      sb.append( comma+"x"+vec.get( i ) );
+      comma = ", ";
+    }
+    return "["+sb.toString()+"]";
+  }
+  //-----------------------------------------------------------------------
+  public static final String vectorToString( IConstr vec )
+  {
+    if( vec == null || vec.size() < 1 )
+      return "[]";
+    
+    StringBuilder sb = new StringBuilder();
+    String comma = "";
+    
+    for( int i=0; i<vec.size(); i++ )
+    {
+      sb.append( comma+"x"+vec.get( i ) );
+      comma = ", ";
+    }
+    return "["+sb.toString()+"]";
+  }
+  //-----------------------------------------------------------------------
+  //-----------------------------------------------------------------------
+}

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Added: maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/metadata/sat/SatOptimizer.java
URL: http://svn.apache.org/viewvc/maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/metadata/sat/SatOptimizer.java?rev=767705&view=auto
==============================================================================
--- maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/metadata/sat/SatOptimizer.java (added)
+++ maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/metadata/sat/SatOptimizer.java Wed Apr 22 22:56:48 2009
@@ -0,0 +1,43 @@
+/**
+ *  Licensed to the Apache Software Foundation (ASF) under one
+ *  or more contributor license agreements.  See the NOTICE file
+ *  distributed with this work for additional information
+ *  regarding copyright ownership.  The ASF licenses this file
+ *  to you under the Apache License, Version 2.0 (the
+ *  "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *  Unless required by applicable law or agreed to in writing,
+ *  software distributed under the License is distributed on an
+ *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *  KIND, either express or implied.  See the License for the
+ *  specific language governing permissions and limitations
+ *  under the License.
+ */
+package org.apache.maven.mercury.metadata.sat;
+
+import org.apache.maven.mercury.artifact.MetadataTreeNode;
+import org.sat4j.pb.ObjectiveFunction;
+
+/**
+ * Sat solver optimizer - calculates and returns the minimization function 
+ * 
+ * @author Oleg Gusakov
+ *
+ */
+public interface SatOptimizer
+{
+  /**
+   * returns the function to be minimized
+   * 
+   * @param tn
+   * @param context
+   * @return
+   * @throws SatException
+   */
+  public ObjectiveFunction getOptimizer( MetadataTreeNode tn, SatContext context )
+  throws SatException
+  ;
+}

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Added: maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/metadata/sat/SatSolver.java
URL: http://svn.apache.org/viewvc/maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/metadata/sat/SatSolver.java?rev=767705&view=auto
==============================================================================
--- maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/metadata/sat/SatSolver.java (added)
+++ maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/metadata/sat/SatSolver.java Wed Apr 22 22:56:48 2009
@@ -0,0 +1,54 @@
+/**
+ *  Licensed to the Apache Software Foundation (ASF) under one
+ *  or more contributor license agreements.  See the NOTICE file
+ *  distributed with this work for additional information
+ *  regarding copyright ownership.  The ASF licenses this file
+ *  to you under the Apache License, Version 2.0 (the
+ *  "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *  Unless required by applicable law or agreed to in writing,
+ *  software distributed under the License is distributed on an
+ *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *  KIND, either express or implied.  See the License for the
+ *  specific language governing permissions and limitations
+ *  under the License.
+ */
+package org.apache.maven.mercury.metadata.sat;
+
+import java.util.Comparator;
+import java.util.List;
+
+import org.apache.maven.mercury.artifact.ArtifactMetadata;
+import org.apache.maven.mercury.artifact.MetadataTreeNode;
+import org.apache.maven.mercury.event.EventGenerator;
+
+/**
+ * @author <a href="oleg@codehaus.org">Oleg Gusakov</a>
+ */
+public interface SatSolver
+extends EventGenerator
+{
+  public static final int DEFAULT_TREE_SIZE = 128; //nodes
+  
+  public static final String EVENT_SOLVE = "solve";
+  public static final String EVENT_CREATE_SOLVER = "create.sat.solver";
+  
+  /**
+   * 
+   * @param sorts - policies expressed as sorted list of node sorters - from most important to the least
+   * @throws SatException
+   */
+  public void applyPolicies( List< Comparator<MetadataTreeNode> > comparators )
+  throws SatException;
+  
+  /**
+   * 
+   * @return list of ArtifactMetedata's in the solution
+   * @throws SatException
+   */
+  public List<ArtifactMetadata> solve()
+  throws SatException;
+}

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Added: maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/metadata/sat/SatVar.java
URL: http://svn.apache.org/viewvc/maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/metadata/sat/SatVar.java?rev=767705&view=auto
==============================================================================
--- maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/metadata/sat/SatVar.java (added)
+++ maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/metadata/sat/SatVar.java Wed Apr 22 22:56:48 2009
@@ -0,0 +1,72 @@
+/**
+ *  Licensed to the Apache Software Foundation (ASF) under one
+ *  or more contributor license agreements.  See the NOTICE file
+ *  distributed with this work for additional information
+ *  regarding copyright ownership.  The ASF licenses this file
+ *  to you under the Apache License, Version 2.0 (the
+ *  "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *  Unless required by applicable law or agreed to in writing,
+ *  software distributed under the License is distributed on an
+ *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *  KIND, either express or implied.  See the License for the
+ *  specific language governing permissions and limitations
+ *  under the License.
+ */
+package org.apache.maven.mercury.metadata.sat;
+
+import org.apache.maven.mercury.artifact.ArtifactMetadata;
+import org.apache.maven.mercury.artifact.MetadataTreeNode;
+
+/**
+ * @author <a href="oleg@codehaus.org">Oleg Gusakov</a>
+ */
+class SatVar
+{
+  MetadataTreeNode _node;
+  int _literal;
+  boolean _optional;
+  //---------------------------------------------------------------------
+  public SatVar( MetadataTreeNode n )
+  throws SatException
+  {
+    if( n == null
+        || n.getMd() == null
+    )
+      throw new SatException("Cannot create SatVar from a null MetadataTreeNode: "+n);
+    
+    ArtifactMetadata md = n.getMd();
+    if(    
+       md == null
+      || md.getGroupId() == null
+      || md.getArtifactId() == null
+      || md.getVersion() == null
+    )
+      throw new SatException("Cannot create SatVar from a null Metadata: "+md);
+
+    this._node = n;
+    this._literal = n.getId();
+  }
+  //---------------------------------------------------------------------
+  public ArtifactMetadata getMd()
+  {
+    return _node.getMd();
+  }
+
+  public int getLiteral()
+  {
+    return _literal;
+  }
+  //---------------------------------------------------------------------
+  @Override
+  public String toString()
+  {
+    return _node.toString()+" -> X"+_literal;
+  }
+  
+  //---------------------------------------------------------------------
+  //---------------------------------------------------------------------
+}

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Added: maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/AbstracRepositoryReader.java
URL: http://svn.apache.org/viewvc/maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/AbstracRepositoryReader.java?rev=767705&view=auto
==============================================================================
--- maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/AbstracRepositoryReader.java (added)
+++ maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/AbstracRepositoryReader.java Wed Apr 22 22:56:48 2009
@@ -0,0 +1,88 @@
+/**
+ *  Licensed to the Apache Software Foundation (ASF) under one
+ *  or more contributor license agreements.  See the NOTICE file
+ *  distributed with this work for additional information
+ *  regarding copyright ownership.  The ASF licenses this file
+ *  to you under the Apache License, Version 2.0 (the
+ *  "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *  Unless required by applicable law or agreed to in writing,
+ *  software distributed under the License is distributed on an
+ *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *  KIND, either express or implied.  See the License for the
+ *  specific language governing permissions and limitations
+ *  under the License.
+ */
+package org.apache.maven.mercury.repository.api;
+
+import org.apache.maven.mercury.artifact.ArtifactMetadata;
+import org.apache.maven.mercury.builder.api.DependencyProcessor;
+import org.apache.maven.mercury.builder.api.MetadataReader;
+import org.apache.maven.mercury.builder.api.MetadataReaderException;
+
+/**
+ * This is to keep MetadataProcessor for all readers
+ * 
+ * @author Oleg Gusakov
+ * @version $Id$
+ */
+public abstract class AbstracRepositoryReader
+    implements RepositoryReader, MetadataReader
+{
+    protected DependencyProcessor _mdProcessor;
+
+    protected MetadataReader _mdReader;
+
+    protected RepositoryMetadataCache _mdCache;
+
+    public void setDependencyProcessor( DependencyProcessor mdProcessor )
+    {
+        _mdProcessor = mdProcessor;
+    }
+
+    public DependencyProcessor getDependencyProcessor()
+    {
+        return _mdProcessor;
+    }
+
+    public void setMetadataReader( MetadataReader mdReader )
+    {
+        _mdReader = mdReader;
+    }
+
+    public MetadataReader getMetadataReader()
+    {
+        return _mdReader;
+    }
+
+    public void setMetadataCache( RepositoryMetadataCache mdCache )
+    {
+        this._mdCache = mdCache;
+    }
+
+    public RepositoryMetadataCache getMetadataCache()
+    {
+        return _mdCache;
+    }
+
+    public boolean hasMetadataCache()
+    {
+        return _mdCache != null;
+    }
+
+    public byte[] readMetadata( ArtifactMetadata bmd, boolean exempt )
+        throws MetadataReaderException
+    {
+        return readRawData( bmd, "", "pom", exempt );
+    }
+
+    public byte[] readMetadata( ArtifactMetadata bmd )
+        throws MetadataReaderException
+    {
+        return readMetadata( bmd, false );
+    }
+
+}

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Added: maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/AbstractRepOpResult.java
URL: http://svn.apache.org/viewvc/maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/AbstractRepOpResult.java?rev=767705&view=auto
==============================================================================
--- maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/AbstractRepOpResult.java (added)
+++ maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/AbstractRepOpResult.java Wed Apr 22 22:56:48 2009
@@ -0,0 +1,94 @@
+/**
+ *  Licensed to the Apache Software Foundation (ASF) under one
+ *  or more contributor license agreements.  See the NOTICE file
+ *  distributed with this work for additional information
+ *  regarding copyright ownership.  The ASF licenses this file
+ *  to you under the Apache License, Version 2.0 (the
+ *  "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *  Unless required by applicable law or agreed to in writing,
+ *  software distributed under the License is distributed on an
+ *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *  KIND, either express or implied.  See the License for the
+ *  specific language governing permissions and limitations
+ *  under the License.
+ */
+package org.apache.maven.mercury.repository.api;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.apache.maven.mercury.artifact.ArtifactMetadata;
+
+/**
+ * generic repository operation result. Represents a Map of query object to AbstractRepositoryOperationResult
+ * 
+ * @author Oleg Gusakov
+ * @version $Id$
+ */
+public abstract class AbstractRepOpResult
+{
+    private Map<ArtifactMetadata, Exception> _exceptions;
+
+    public AbstractRepOpResult()
+    {
+    }
+
+    public Map<ArtifactMetadata, Exception> getExceptions()
+    {
+        return _exceptions;
+    }
+
+    public abstract boolean hasResults();
+
+    public abstract boolean hasResults( ArtifactMetadata key );
+
+    public boolean hasExceptions()
+    {
+        return _exceptions != null && !_exceptions.isEmpty();
+    }
+
+    public void addError( ArtifactMetadata key, Exception error )
+    {
+        if ( _exceptions == null )
+            _exceptions = new HashMap<ArtifactMetadata, Exception>( 8 );
+
+        _exceptions.put( key, error );
+    }
+
+    public void addError( Map<ArtifactMetadata, Exception> error )
+    {
+        if ( _exceptions == null )
+            _exceptions = new HashMap<ArtifactMetadata, Exception>( 8 );
+
+        _exceptions.putAll( error );
+    }
+
+    public void addError( ArtifactResults res )
+    {
+        if ( res == null || !res.hasExceptions() )
+            return;
+
+        if ( _exceptions == null )
+            _exceptions = new HashMap<ArtifactMetadata, Exception>( 8 );
+
+        for ( ArtifactMetadata bmd : res.getExceptions().keySet() )
+            _exceptions.put( bmd, res.getError( bmd ) );
+    }
+
+    public Exception getError( ArtifactMetadata key )
+    {
+        if ( _exceptions == null )
+            return null;
+
+        return _exceptions.get( key );
+    }
+
+    public String toString()
+    {
+        return _exceptions.toString();
+    }
+}

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Added: maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/AbstractRepository.java
URL: http://svn.apache.org/viewvc/maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/AbstractRepository.java?rev=767705&view=auto
==============================================================================
--- maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/AbstractRepository.java (added)
+++ maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/AbstractRepository.java Wed Apr 22 22:56:48 2009
@@ -0,0 +1,302 @@
+/**
+ *  Licensed to the Apache Software Foundation (ASF) under one
+ *  or more contributor license agreements.  See the NOTICE file
+ *  distributed with this work for additional information
+ *  regarding copyright ownership.  The ASF licenses this file
+ *  to you under the Apache License, Version 2.0 (the
+ *  "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *  Unless required by applicable law or agreed to in writing,
+ *  software distributed under the License is distributed on an
+ *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *  KIND, either express or implied.  See the License for the
+ *  specific language governing permissions and limitations
+ *  under the License.
+ */
+package org.apache.maven.mercury.repository.api;
+
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.apache.maven.mercury.artifact.Quality;
+import org.apache.maven.mercury.artifact.QualityRange;
+import org.apache.maven.mercury.builder.api.DependencyProcessor;
+import org.apache.maven.mercury.transport.api.Server;
+import org.codehaus.plexus.lang.DefaultLanguage;
+import org.codehaus.plexus.lang.Language;
+
+/**
+ * parent of all repositories and also a helper class for registration of readers/writers
+ */
+public abstract class AbstractRepository
+    implements Repository
+{
+    private static final Language LANG = new DefaultLanguage( AbstractRepository.class );
+
+    // ---------------------------------------------------------------------------
+    public static final String DEFAULT_REMOTE_READ_PROTOCOL = "http";
+
+    public static final String DEFAULT_REMOTE_WRITE_PROTOCOL = "http";
+
+    public static final String DEFAULT_LOCAL_READ_PROTOCOL = "file";
+
+    public static final String DEFAULT_LOCAL_WRITE_PROTOCOL = "file";
+
+    public static final String DEFAULT_REPOSITORY_TYPE = "m2";
+
+    private String id;
+
+    private String defaultReadProtocol = DEFAULT_REMOTE_READ_PROTOCOL;
+
+    private String defaultWriteProtocol = DEFAULT_REMOTE_WRITE_PROTOCOL;
+
+    // ---------------------------------------------------------------------------
+    private static Map<String, RepositoryReaderFactory> readerRegistry =
+        Collections.synchronizedMap( new HashMap<String, RepositoryReaderFactory>( 4 ) );
+
+    private static Map<String, RepositoryWriterFactory> writerRegistry =
+        Collections.synchronizedMap( new HashMap<String, RepositoryWriterFactory>( 4 ) );
+
+    // ---------------------------------------------------------------------------
+    protected String type = DEFAULT_REPOSITORY_TYPE;
+
+    protected QualityRange repositoryQualityRange = QualityRange.ALL;
+
+    protected QualityRange versionRangeQualityRange = QualityRange.ALL;
+
+    protected DependencyProcessor dependencyProcessor;
+
+    protected Server server;
+
+    private static final byte[] __HEX_DIGITS = "0123456789abcdef".getBytes();
+
+    // ---------------------------------------------------------------------------
+    public AbstractRepository( String id, String type )
+    {
+        this.id = hashId( id );
+
+        this.type = type;
+    }
+
+    // ---------------------------------------------------------------------------
+    public static String hashId( String id )
+    {
+        try
+        {
+            if ( id == null || ( id.indexOf( '/' ) == -1 && id.indexOf( '\\' ) == -1 ) )
+                return id;
+
+            MessageDigest digest = MessageDigest.getInstance( "SHA-1" );
+
+            digest.update( id.getBytes() );
+
+            byte[] bytes = digest.digest();
+
+            int len = bytes.length;
+
+            byte[] raw = new byte[len * 2];
+
+            for ( int i = 0, j = 0; i < len; i++ )
+            {
+                raw[j++] = __HEX_DIGITS[( 0xF0 & bytes[i] ) >>> 4];
+                raw[j++] = __HEX_DIGITS[0x0F & bytes[i]];
+            }
+
+            return new String( raw );
+        }
+        catch ( NoSuchAlgorithmException e )
+        {
+            throw new IllegalArgumentException( e );
+        }
+    }
+
+    // ---------------------------------------------------------------------------
+    public String getId()
+    {
+        return id;
+    }
+
+    // ---------------------------------------------------------------------------
+    public QualityRange getRepositoryQualityRange()
+    {
+        return repositoryQualityRange == null ? QualityRange.ALL : repositoryQualityRange;
+    }
+
+    // ---------------------------------------------------------------------------
+    public void setRepositoryQualityRange( QualityRange repositoryQualityRange )
+    {
+        this.repositoryQualityRange = repositoryQualityRange;
+    }
+
+    // ---------------------------------------------------------------------------
+    public QualityRange getVersionRangeQualityRange()
+    {
+        return versionRangeQualityRange;
+    }
+
+    // ---------------------------------------------------------------------------
+    public void setVersionRangeQualityRange( QualityRange versionRangeQualityRange )
+    {
+        this.versionRangeQualityRange = versionRangeQualityRange;
+    }
+
+    // ---------------------------------------------------------------------------
+    public String getDefaultReadProtocol()
+    {
+        return defaultReadProtocol;
+    }
+
+    // ---------------------------------------------------------------------------
+    public void setDefaultReadProtocol( String defaultReadProtocol )
+    {
+        this.defaultReadProtocol = defaultReadProtocol;
+    }
+
+    // ---------------------------------------------------------------------------
+    public String getDefaultWriteProtocol()
+    {
+        return defaultWriteProtocol;
+    }
+
+    // ---------------------------------------------------------------------------
+    public void setDefaultWriteProtocol( String defaultWriteProtocol )
+    {
+        this.defaultWriteProtocol = defaultWriteProtocol;
+    }
+
+    // ---------------------------------------------------------------------------
+    public static void register( String type, RepositoryReaderFactory readerFactory )
+        throws IllegalArgumentException
+    {
+        if ( type == null || type.length() < 1 )
+            throw new IllegalArgumentException( LANG.getMessage( "null.reader.type" ) );
+
+        if ( readerFactory == null )
+            throw new IllegalArgumentException( LANG.getMessage( "null.reader.factory" ) );
+
+        readerRegistry.put( type, readerFactory );
+    }
+
+    // ---------------------------------------------------------------------------
+    public static void register( String type, RepositoryWriterFactory writerFactory )
+        throws IllegalArgumentException
+    {
+        if ( type == null || type.length() < 1 )
+            throw new IllegalArgumentException( LANG.getMessage( "null.writer.type" ) );
+
+        if ( writerFactory == null )
+            throw new IllegalArgumentException( LANG.getMessage( "null.writer.factory" ) );
+
+        writerRegistry.put( type, writerFactory );
+    }
+
+    // ---------------------------------------------------------------------------
+    public static void unregisterReader( String type )
+        throws IllegalArgumentException
+    {
+        if ( type == null || type.length() < 1 )
+            throw new IllegalArgumentException( LANG.getMessage( "null.reader.type" ) );
+
+        readerRegistry.remove( type );
+    }
+
+    // ---------------------------------------------------------------------------
+    public static void unregisterWriter( String type )
+        throws IllegalArgumentException
+    {
+        if ( type == null || type.length() < 1 )
+            throw new IllegalArgumentException( LANG.getMessage( "null.writer.type" ) );
+
+        writerRegistry.remove( type );
+    }
+
+    // ---------------------------------------------------------------------------
+    public static RepositoryReader getReader( String type, Repository repo, DependencyProcessor mdProcessor )
+        throws IllegalArgumentException, RepositoryException
+    {
+        if ( type == null || type.length() < 1 )
+            throw new IllegalArgumentException( LANG.getMessage( "null.reader.type" ) );
+
+        if ( repo == null )
+            throw new IllegalArgumentException( LANG.getMessage( "null.reader.repo" ) );
+
+        RepositoryReaderFactory rf = readerRegistry.get( type );
+
+        if ( rf == null )
+            throw new RepositoryException( LANG.getMessage( "null.reader.factory.found" ) );
+
+        return rf.getReader( repo, mdProcessor );
+    }
+
+    // ---------------------------------------------------------------------------
+    public static RepositoryWriter getWriter( String type, Repository repo )
+        throws IllegalArgumentException, RepositoryException
+    {
+        if ( type == null || type.length() < 1 )
+            throw new IllegalArgumentException( LANG.getMessage( "null.writer.type" ) );
+
+        if ( repo == null )
+            throw new IllegalArgumentException( LANG.getMessage( "null.writer.repo" ) );
+
+        RepositoryWriterFactory wf = writerRegistry.get( type );
+
+        if ( wf == null )
+            throw new RepositoryException( LANG.getMessage( "null.writer.factory.found" ) );
+
+        return wf.getWriter( repo );
+    }
+
+    // ---------------------------------------------------------------------------
+    public boolean isSnapshots()
+    {
+        return repositoryQualityRange.isAcceptedQuality( Quality.SNAPSHOT_QUALITY );
+    }
+
+    // ---------------------------------------------------------------------------
+    public boolean isReleases()
+    {
+        return repositoryQualityRange.isAcceptedQuality( Quality.RELEASE_QUALITY );
+    }
+
+    // ---------------------------------------------------------------------------
+    public boolean isAcceptedQuality( Quality quality )
+    {
+        return repositoryQualityRange.isAcceptedQuality( quality );
+    }
+
+    // ---------------------------------------------------------------------------
+    public boolean hasServer()
+    {
+        return server != null;
+    }
+
+    // ---------------------------------------------------------------------------
+    public Server getServer()
+    {
+        return server;
+    }
+
+    // ---------------------------------------------------------------------------
+    public boolean hasDependencyProcessor()
+    {
+        return dependencyProcessor == null;
+    }
+
+    public DependencyProcessor getDependencyProcessor()
+    {
+        return dependencyProcessor;
+    }
+
+    public void setDependencyProcessor( DependencyProcessor dependencyProcessor )
+    {
+        this.dependencyProcessor = dependencyProcessor;
+    }
+    // ---------------------------------------------------------------------------
+    // ---------------------------------------------------------------------------
+}

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Added: maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/AbstractRepositoryWriter.java
URL: http://svn.apache.org/viewvc/maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/AbstractRepositoryWriter.java?rev=767705&view=auto
==============================================================================
--- maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/AbstractRepositoryWriter.java (added)
+++ maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/AbstractRepositoryWriter.java Wed Apr 22 22:56:48 2009
@@ -0,0 +1,47 @@
+/**
+ *  Licensed to the Apache Software Foundation (ASF) under one
+ *  or more contributor license agreements.  See the NOTICE file
+ *  distributed with this work for additional information
+ *  regarding copyright ownership.  The ASF licenses this file
+ *  to you under the Apache License, Version 2.0 (the
+ *  "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *  Unless required by applicable law or agreed to in writing,
+ *  software distributed under the License is distributed on an
+ *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *  KIND, either express or implied.  See the License for the
+ *  specific language governing permissions and limitations
+ *  under the License.
+ */
+package org.apache.maven.mercury.repository.api;
+
+/**
+ * helper class for writing repository writers
+ * 
+ * @author Oleg Gusakov
+ * @version $Id$
+ */
+public class AbstractRepositoryWriter
+    extends Thread
+{
+
+    protected RepositoryMetadataCache _mdCache;
+
+    public void setMetadataCache( RepositoryMetadataCache mdCache )
+    {
+        this._mdCache = mdCache;
+    }
+
+    public RepositoryMetadataCache getMetadataCache()
+    {
+        return _mdCache;
+    }
+
+    public boolean hasMetadataCache()
+    {
+        return _mdCache != null;
+    }
+}

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Added: maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/ArtifactResults.java
URL: http://svn.apache.org/viewvc/maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/ArtifactResults.java?rev=767705&view=auto
==============================================================================
--- maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/ArtifactResults.java (added)
+++ maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/ArtifactResults.java Wed Apr 22 22:56:48 2009
@@ -0,0 +1,93 @@
+/**
+ *  Licensed to the Apache Software Foundation (ASF) under one
+ *  or more contributor license agreements.  See the NOTICE file
+ *  distributed with this work for additional information
+ *  regarding copyright ownership.  The ASF licenses this file
+ *  to you under the Apache License, Version 2.0 (the
+ *  "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *  Unless required by applicable law or agreed to in writing,
+ *  software distributed under the License is distributed on an
+ *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *  KIND, either express or implied.  See the License for the
+ *  specific language governing permissions and limitations
+ *  under the License.
+ */
+package org.apache.maven.mercury.repository.api;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.maven.mercury.artifact.Artifact;
+import org.apache.maven.mercury.artifact.ArtifactMetadata;
+
+/**
+ * @author Oleg Gusakov
+ * @version $Id$
+ */
+public class ArtifactResults
+    extends AbstractRepOpResult
+{
+    Map<ArtifactMetadata, List<Artifact>> _result = new HashMap<ArtifactMetadata, List<Artifact>>( 8 );
+
+    public ArtifactResults()
+    {
+    }
+
+    public ArtifactResults( ArtifactMetadata query, List<Artifact> result )
+    {
+        this._result.put( query, result );
+    }
+
+    public void add( ArtifactMetadata query, Artifact result )
+    {
+        List<Artifact> res = _result.get( query );
+        if ( res == null )
+        {
+            res = new ArrayList<Artifact>( 8 );
+            _result.put( query, res );
+        }
+
+        res.add( result );
+    }
+
+    public void addAll( ArtifactMetadata query, List<Artifact> result )
+    {
+        List<Artifact> res = _result.get( query );
+        if ( res == null )
+        {
+            res = new ArrayList<Artifact>( 8 );
+            _result.put( query, res );
+        }
+
+        res.addAll( result );
+    }
+
+    public Map<ArtifactMetadata, List<Artifact>> getResults()
+    {
+        return _result;
+    }
+
+    public List<Artifact> getResults( ArtifactMetadata query )
+    {
+        return _result.get( query );
+    }
+
+    @Override
+    public boolean hasResults()
+    {
+        return !_result.isEmpty();
+    }
+
+    @Override
+    public boolean hasResults( ArtifactMetadata key )
+    {
+        return !_result.isEmpty() && _result.containsKey( key ) && !_result.get( key ).isEmpty();
+    }
+
+}

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Added: maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/LocalRepository.java
URL: http://svn.apache.org/viewvc/maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/LocalRepository.java?rev=767705&view=auto
==============================================================================
--- maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/LocalRepository.java (added)
+++ maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/LocalRepository.java Wed Apr 22 22:56:48 2009
@@ -0,0 +1,30 @@
+package org.apache.maven.mercury.repository.api;
+
+import java.io.File;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+/**
+ */
+public interface LocalRepository
+    extends Repository
+{
+    File getDirectory();
+}

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Added: maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/Messages.properties
URL: http://svn.apache.org/viewvc/maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/Messages.properties?rev=767705&view=auto
==============================================================================
--- maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/Messages.properties (added)
+++ maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/Messages.properties Wed Apr 22 22:56:48 2009
@@ -0,0 +1,32 @@
+#
+#  Licensed to the Apache Software Foundation (ASF) under one
+#  or more contributor license agreements.  See the NOTICE file
+#  distributed with this work for additional information
+#  regarding copyright ownership.  The ASF licenses this file
+#  to you under the Apache License, Version 2.0 (the
+#  "License"); you may not use this file except in compliance
+#  with the License.  You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+#  Unless required by applicable law or agreed to in writing,
+#  software distributed under the License is distributed on an
+#  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+#  KIND, either express or implied.  See the License for the
+#  specific language governing permissions and limitations
+#  under the License.
+#
+null.reader.type=reader factory type cannot be null
+null.reader.factory=reader factory cannot be null
+null.writer.type=writer factory type cannot be null
+null.writer.factory=writer factory cannot be null
+null.reader.repo=reader repository cannot be null
+null.reader.processor=reader processor cannot be null
+null.writer.repo=writer repository cannot be null
+null.writer.processor=writer processor cannot be null
+
+empty.policy=repository update policy cannot be empty: {0}
+bad.policy=cannot parse repository update policy: {0}
+bad.interval.policy=cannot parse interval repository update policy: {0}
+
+empty.md=cannot initialize metadata object from null 
\ No newline at end of file

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Added: maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/MetadataCacheException.java
URL: http://svn.apache.org/viewvc/maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/MetadataCacheException.java?rev=767705&view=auto
==============================================================================
--- maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/MetadataCacheException.java (added)
+++ maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/MetadataCacheException.java Wed Apr 22 22:56:48 2009
@@ -0,0 +1,65 @@
+/**
+ *  Licensed to the Apache Software Foundation (ASF) under one
+ *  or more contributor license agreements.  See the NOTICE file
+ *  distributed with this work for additional information
+ *  regarding copyright ownership.  The ASF licenses this file
+ *  to you under the Apache License, Version 2.0 (the
+ *  "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *  Unless required by applicable law or agreed to in writing,
+ *  software distributed under the License is distributed on an
+ *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *  KIND, either express or implied.  See the License for the
+ *  specific language governing permissions and limitations
+ *  under the License.
+ */
+package org.apache.maven.mercury.repository.api;
+
+/**
+ * @author Oleg Gusakov
+ * @version $Id$
+ */
+public class MetadataCacheException
+    extends Exception
+{
+
+    /**
+   * 
+   */
+    public MetadataCacheException()
+    {
+        // TODO Auto-generated constructor stub
+    }
+
+    /**
+     * @param message
+     */
+    public MetadataCacheException( String message )
+    {
+        super( message );
+        // TODO Auto-generated constructor stub
+    }
+
+    /**
+     * @param cause
+     */
+    public MetadataCacheException( Throwable cause )
+    {
+        super( cause );
+        // TODO Auto-generated constructor stub
+    }
+
+    /**
+     * @param message
+     * @param cause
+     */
+    public MetadataCacheException( String message, Throwable cause )
+    {
+        super( message, cause );
+        // TODO Auto-generated constructor stub
+    }
+
+}

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Added: maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/MetadataCorruptionException.java
URL: http://svn.apache.org/viewvc/maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/MetadataCorruptionException.java?rev=767705&view=auto
==============================================================================
--- maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/MetadataCorruptionException.java (added)
+++ maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/MetadataCorruptionException.java Wed Apr 22 22:56:48 2009
@@ -0,0 +1,65 @@
+/**
+ *  Licensed to the Apache Software Foundation (ASF) under one
+ *  or more contributor license agreements.  See the NOTICE file
+ *  distributed with this work for additional information
+ *  regarding copyright ownership.  The ASF licenses this file
+ *  to you under the Apache License, Version 2.0 (the
+ *  "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *  Unless required by applicable law or agreed to in writing,
+ *  software distributed under the License is distributed on an
+ *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *  KIND, either express or implied.  See the License for the
+ *  specific language governing permissions and limitations
+ *  under the License.
+ */
+package org.apache.maven.mercury.repository.api;
+
+/**
+ * @author Oleg Gusakov
+ * @version $Id$
+ */
+public class MetadataCorruptionException
+    extends Exception
+{
+
+    /**
+   * 
+   */
+    public MetadataCorruptionException()
+    {
+        // TODO Auto-generated constructor stub
+    }
+
+    /**
+     * @param message
+     */
+    public MetadataCorruptionException( String message )
+    {
+        super( message );
+        // TODO Auto-generated constructor stub
+    }
+
+    /**
+     * @param cause
+     */
+    public MetadataCorruptionException( Throwable cause )
+    {
+        super( cause );
+        // TODO Auto-generated constructor stub
+    }
+
+    /**
+     * @param message
+     * @param cause
+     */
+    public MetadataCorruptionException( String message, Throwable cause )
+    {
+        super( message, cause );
+        // TODO Auto-generated constructor stub
+    }
+
+}

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Added: maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/MetadataResults.java
URL: http://svn.apache.org/viewvc/maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/MetadataResults.java?rev=767705&view=auto
==============================================================================
--- maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/MetadataResults.java (added)
+++ maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/MetadataResults.java Wed Apr 22 22:56:48 2009
@@ -0,0 +1,151 @@
+/**
+ *  Licensed to the Apache Software Foundation (ASF) under one
+ *  or more contributor license agreements.  See the NOTICE file
+ *  distributed with this work for additional information
+ *  regarding copyright ownership.  The ASF licenses this file
+ *  to you under the Apache License, Version 2.0 (the
+ *  "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *  Unless required by applicable law or agreed to in writing,
+ *  software distributed under the License is distributed on an
+ *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *  KIND, either express or implied.  See the License for the
+ *  specific language governing permissions and limitations
+ *  under the License.
+ */
+package org.apache.maven.mercury.repository.api;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.maven.mercury.artifact.ArtifactMetadata;
+
+/**
+ * @author Oleg Gusakov
+ * @version $Id$
+ */
+public class MetadataResults
+    extends AbstractRepOpResult
+{
+    Map<ArtifactMetadata, List<ArtifactMetadata>> _result = new HashMap<ArtifactMetadata, List<ArtifactMetadata>>( 8 );
+
+    /**
+     * first result is ready
+     */
+    public MetadataResults( ArtifactMetadata query, List<ArtifactMetadata> result )
+    {
+        this._result.put( query, result );
+    }
+
+    /**
+     * optimization opportunity
+     * 
+     * @param size
+     */
+    public MetadataResults( int size )
+    {
+    }
+
+    private MetadataResults()
+    {
+    }
+
+    public static MetadataResults add( final MetadataResults res, final ArtifactMetadata key,
+                                            final Exception err )
+    {
+        MetadataResults ret = res;
+        if ( res == null )
+            ret = new MetadataResults();
+
+        ret.addError( key, err );
+
+        return ret;
+    }
+
+    public static MetadataResults add( final MetadataResults res, final ArtifactMetadata key,
+                                            final List<ArtifactMetadata> result )
+    {
+        MetadataResults ret = res;
+        if ( res == null )
+            ret = new MetadataResults();
+
+        ret.add( key, result );
+
+        return ret;
+    }
+
+    public static MetadataResults add( final MetadataResults res, final ArtifactMetadata key,
+                                            final ArtifactMetadata result )
+    {
+        MetadataResults ret = res;
+        if ( res == null )
+            ret = new MetadataResults();
+
+        ret.add( key, result );
+
+        return ret;
+    }
+
+    private List<ArtifactMetadata> getOrCreate( ArtifactMetadata query )
+    {
+        List<ArtifactMetadata> res = _result.get( query );
+        if ( res == null )
+        {
+            res = new ArrayList<ArtifactMetadata>( 8 );
+            _result.put( query, res );
+        }
+        return res;
+    }
+
+    /**
+     * add results if they are not there yet
+     * 
+     * @param query
+     * @param result
+     */
+    public void add( ArtifactMetadata query, List<ArtifactMetadata> result )
+    {
+        List<ArtifactMetadata> res = getOrCreate( query );
+        for ( ArtifactMetadata r : result )
+        {
+            if ( res.contains( r ) )
+                continue;
+
+            res.add( r );
+        }
+    }
+
+    public void add( ArtifactMetadata query, ArtifactMetadata result )
+    {
+        List<ArtifactMetadata> res = getOrCreate( query );
+        res.add( result );
+    }
+
+    public Map<ArtifactMetadata, List<ArtifactMetadata>> getResults()
+    {
+        return _result;
+    }
+
+    public List<ArtifactMetadata> getResult( ArtifactMetadata query )
+    {
+        return _result.get( query );
+    }
+
+    @Override
+    public boolean hasResults()
+    {
+        return !_result.isEmpty();
+    }
+
+    @Override
+    public boolean hasResults( ArtifactMetadata key )
+    {
+        return !_result.isEmpty() && _result.containsKey( key ) && !_result.get( key ).isEmpty();
+    }
+
+}

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Added: maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/NonExistentProtocolException.java
URL: http://svn.apache.org/viewvc/maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/NonExistentProtocolException.java?rev=767705&view=auto
==============================================================================
--- maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/NonExistentProtocolException.java (added)
+++ maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/NonExistentProtocolException.java Wed Apr 22 22:56:48 2009
@@ -0,0 +1,48 @@
+/**
+ *  Licensed to the Apache Software Foundation (ASF) under one
+ *  or more contributor license agreements.  See the NOTICE file
+ *  distributed with this work for additional information
+ *  regarding copyright ownership.  The ASF licenses this file
+ *  to you under the Apache License, Version 2.0 (the
+ *  "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *  Unless required by applicable law or agreed to in writing,
+ *  software distributed under the License is distributed on an
+ *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *  KIND, either express or implied.  See the License for the
+ *  specific language governing permissions and limitations
+ *  under the License.
+ */
+package org.apache.maven.mercury.repository.api;
+
+public class NonExistentProtocolException
+    extends RepositoryException
+{
+
+    public NonExistentProtocolException()
+    {
+        // TODO Auto-generated constructor stub
+    }
+
+    public NonExistentProtocolException( String message )
+    {
+        super( message );
+        // TODO Auto-generated constructor stub
+    }
+
+    public NonExistentProtocolException( Throwable cause )
+    {
+        super( cause );
+        // TODO Auto-generated constructor stub
+    }
+
+    public NonExistentProtocolException( String message, Throwable cause )
+    {
+        super( message, cause );
+        // TODO Auto-generated constructor stub
+    }
+
+}

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Added: maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/RemoteRepository.java
URL: http://svn.apache.org/viewvc/maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/RemoteRepository.java?rev=767705&view=auto
==============================================================================
--- maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/RemoteRepository.java (added)
+++ maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/RemoteRepository.java Wed Apr 22 22:56:48 2009
@@ -0,0 +1,45 @@
+package org.apache.maven.mercury.repository.api;
+
+import org.apache.maven.mercury.transport.api.Server;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+/**
+ */
+public interface RemoteRepository
+    extends Repository
+{
+    /**
+     * this is the Server with many useful fields to describe the home of this remote repo
+     */
+    Server getServer();
+
+    /**
+     * get the update policy configured for this remote repository
+     * 
+     * @return the policy or null, if it does not exist
+     */
+    RepositoryUpdatePolicy getUpdatePolicy();
+
+    /**
+     * set the update policy configured for this remote repository
+     */
+    void setUpdatePolicy( RepositoryUpdatePolicy updatePolicy );
+}

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Added: maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/Repository.java
URL: http://svn.apache.org/viewvc/maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/Repository.java?rev=767705&view=auto
==============================================================================
--- maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/Repository.java (added)
+++ maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/Repository.java Wed Apr 22 22:56:48 2009
@@ -0,0 +1,152 @@
+package org.apache.maven.mercury.repository.api;
+
+import org.apache.maven.mercury.artifact.Quality;
+import org.apache.maven.mercury.artifact.QualityRange;
+import org.apache.maven.mercury.builder.api.DependencyProcessor;
+import org.apache.maven.mercury.transport.api.Server;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+/**
+ */
+public interface Repository
+{
+    String getId();
+
+    /**
+     * repository type - m2, nexus, ivy, p2 - to name a few. It defines the RepositoryReader/Writer that will be
+     * searched for in the registry.
+     */
+    public String getType();
+
+    /**
+     * Indicates whether this is local Repository. This flag defines the necessity to download the artifact, if it was
+     * cleared by the conflict resolver but not read from a localRepo.
+     */
+    public boolean isLocal();
+
+    /**
+     * Indicates whether it's possible to read from this Repository.
+     */
+    public boolean isReadable();
+
+    /**
+     * Indicates whether it's possible to write to this Repository. Good example is the flat repo, which is used to only
+     * collect dependencies for some 3rd party reasons, but not read them. If there are multiple localRepo's and
+     * Artifact needs to be downloaded - it will be "written" to all "local" repositories that are writeable.
+     */
+    public boolean isWriteable();
+
+    /**
+     * Indicates whether this repository contains releases
+     */
+    public boolean isReleases();
+
+    /**
+     * Indicates whether this repository contains snapshots
+     */
+    public boolean isSnapshots();
+
+    /**
+     * indicates if the supplied code quality is served by this repository
+     */
+    public boolean isAcceptedQuality( Quality quality );
+
+    /**
+     * defines the code quality range for this repository
+     */
+    public QualityRange getRepositoryQualityRange();
+    void setRepositoryQualityRange( QualityRange qualityRange );
+
+    /**
+     * defines how VersionRnage treats upper boundary - which Artifacts should be treated as belonging to the vicinity -
+     * http://docs.codehaus.org/x/twDPBQ
+     * 
+     * note: don't mix this with repository quality range - this one is for version range calculations only!
+     * 
+     */
+    public QualityRange getVersionRangeQualityRange();
+    public void setVersionRangeQualityRange( QualityRange qualityRange );
+    
+    /**
+     * get default reader, if any
+     * 
+     * @return default reader or null, if none exists
+     * @throws RepositoryException
+     */
+    RepositoryReader getReader()
+        throws RepositoryException;
+
+    /**
+     * get protocol specific reader, if any
+     * 
+     * @param protocol
+     * @return reader instance for the specified protocol
+     * @throws NonExistentProtocolException if protocol not supported
+     */
+    RepositoryReader getReader( String protocol )
+        throws RepositoryException;
+
+    /**
+     * get default writer, if any
+     * 
+     * @return default writer or null, if none exists
+     * @throws RepositoryException
+     */
+    RepositoryWriter getWriter()
+        throws RepositoryException;
+
+    /**
+     * @param protocol
+     * @return writer instance for the specified protocol
+     * @throws NonExistentProtocolException if protocol not supported
+     * @throws RepositoryException 
+     */
+    RepositoryWriter getWriter( String protocol )
+        throws NonExistentProtocolException, RepositoryException;
+
+    /**
+     * server where this repo resides. For local repo - folder as URL and stream verifiers are important.
+     * 
+     * @return server
+     */
+    boolean hasServer();
+
+    Server getServer();
+
+    /**
+     * DependencyProcessor used by this repo resides
+     * 
+     * @return server
+     */
+    boolean hasDependencyProcessor();
+
+    DependencyProcessor getDependencyProcessor();
+
+    void setDependencyProcessor( DependencyProcessor dependencyProcessor );
+
+    /**
+     * maven-metadata.xml file name for this repository. This is internal to repository and should never be used outside
+     * of readers and wrters
+     * 
+     * @return server
+     */
+    String getMetadataName();
+}

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Added: maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/RepositoryCallback.java
URL: http://svn.apache.org/viewvc/maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/RepositoryCallback.java?rev=767705&view=auto
==============================================================================
--- maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/RepositoryCallback.java (added)
+++ maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/RepositoryCallback.java Wed Apr 22 22:56:48 2009
@@ -0,0 +1,31 @@
+/**
+ *  Licensed to the Apache Software Foundation (ASF) under one
+ *  or more contributor license agreements.  See the NOTICE file
+ *  distributed with this work for additional information
+ *  regarding copyright ownership.  The ASF licenses this file
+ *  to you under the Apache License, Version 2.0 (the
+ *  "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *  Unless required by applicable law or agreed to in writing,
+ *  software distributed under the License is distributed on an
+ *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *  KIND, either express or implied.  See the License for the
+ *  specific language governing permissions and limitations
+ *  under the License.
+ */
+package org.apache.maven.mercury.repository.api;
+
+/**
+ * This is a generic repository event callback. Used by all repository operations to signal end of operation and
+ * represents a list of exceptions plus a list of ArtifactBasicMetadata derivatives
+ * 
+ * @author Oleg Gusakov
+ * @version $Id$
+ */
+public interface RepositoryCallback
+{
+    public void done( AbstractRepOpResult results );
+}

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Added: maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/RepositoryException.java
URL: http://svn.apache.org/viewvc/maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/RepositoryException.java?rev=767705&view=auto
==============================================================================
--- maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/RepositoryException.java (added)
+++ maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/RepositoryException.java Wed Apr 22 22:56:48 2009
@@ -0,0 +1,70 @@
+/**
+ *  Licensed to the Apache Software Foundation (ASF) under one
+ *  or more contributor license agreements.  See the NOTICE file
+ *  distributed with this work for additional information
+ *  regarding copyright ownership.  The ASF licenses this file
+ *  to you under the Apache License, Version 2.0 (the
+ *  "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *  Unless required by applicable law or agreed to in writing,
+ *  software distributed under the License is distributed on an
+ *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *  KIND, either express or implied.  See the License for the
+ *  specific language governing permissions and limitations
+ *  under the License.
+ */
+package org.apache.maven.mercury.repository.api;
+
+/**
+ * @author Oleg Gusakov
+ * @version $Id$
+ */
+public class RepositoryException
+    extends Exception
+{
+
+    /**
+   * 
+   */
+    private static final long serialVersionUID = -1193169088723411771L;
+
+    /**
+   * 
+   */
+    public RepositoryException()
+    {
+        // TODO Auto-generated constructor stub
+    }
+
+    /**
+     * @param message
+     */
+    public RepositoryException( String message )
+    {
+        super( message );
+        // TODO Auto-generated constructor stub
+    }
+
+    /**
+     * @param cause
+     */
+    public RepositoryException( Throwable cause )
+    {
+        super( cause );
+        // TODO Auto-generated constructor stub
+    }
+
+    /**
+     * @param message
+     * @param cause
+     */
+    public RepositoryException( String message, Throwable cause )
+    {
+        super( message, cause );
+        // TODO Auto-generated constructor stub
+    }
+
+}

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Added: maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/RepositoryGAMetadata.java
URL: http://svn.apache.org/viewvc/maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/RepositoryGAMetadata.java?rev=767705&view=auto
==============================================================================
--- maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/RepositoryGAMetadata.java (added)
+++ maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/RepositoryGAMetadata.java Wed Apr 22 22:56:48 2009
@@ -0,0 +1,150 @@
+package org.apache.maven.mercury.repository.api;
+
+import java.text.ParseException;
+import java.util.Collection;
+import java.util.List;
+import java.util.TreeSet;
+
+import org.apache.maven.mercury.artifact.ArtifactCoordinates;
+import org.apache.maven.mercury.artifact.version.VersionComparator;
+import org.apache.maven.mercury.repository.metadata.Metadata;
+import org.apache.maven.mercury.repository.metadata.MetadataException;
+import org.apache.maven.mercury.util.TimeUtil;
+import org.apache.maven.mercury.util.Util;
+import org.codehaus.plexus.lang.DefaultLanguage;
+import org.codehaus.plexus.lang.Language;
+
+/**
+ * This is a data object to carry GA level repository metadata, namely - a list of versions and last check timestamp
+ * 
+ * @author Oleg Gusakov
+ * @version $Id$
+ */
+public class RepositoryGAMetadata
+{
+    private static final Language LANG = new DefaultLanguage( RepositoryGAVMetadata.class );
+
+    protected ArtifactCoordinates ga;
+
+    /** a list of last discovered versions, ordered ascending */
+    protected TreeSet<String> versions = new TreeSet<String>( new VersionComparator() );
+
+    /** GMT timestamp of the last metadata check */
+    protected long lastCheck;
+
+    /** is set true by cache implementation when determined that it's time to refresh */
+    protected transient boolean expired = false;
+
+    /** negative yes */
+    protected transient boolean negativeResult = false;
+
+    protected RepositoryGAMetadata()
+    {
+    }
+
+    /**
+     * @param versions
+     * @param lastCheck
+     */
+    public RepositoryGAMetadata( ArtifactCoordinates ga, Collection<String> versions )
+    {
+        this.ga = ga;
+
+        if ( !Util.isEmpty( versions ) )
+            this.versions.addAll( versions );
+
+        this.lastCheck = TimeUtil.getUTCTimestampAsLong();
+    }
+
+    /**
+     * construct from maven 2.x maven-metadata.xml object
+     * 
+     * @param md
+     * @throws MetadataException
+     */
+    public RepositoryGAMetadata( Metadata md )
+        throws MetadataException
+    {
+        if ( md == null )
+            throw new IllegalArgumentException( LANG.getMessage( "empty.md" ) );
+
+        this.ga = new ArtifactCoordinates( md.getGroupId(), md.getArtifactId(), md.getVersion() );
+
+        List<String> vers = null;
+
+        if ( md.getVersioning() != null )
+        {
+            vers = md.getVersioning().getVersions();
+            this.versions.addAll( vers );
+        }
+
+        this.lastCheck = TimeUtil.getUTCTimestampAsLong();
+    }
+
+    /**
+     * copy constructor
+     * 
+     * @param md
+     * @throws MetadataException
+     */
+    public RepositoryGAMetadata( RepositoryGAMetadata md )
+        throws MetadataException
+    {
+        this.ga = md.getGA();
+
+        if ( !Util.isEmpty( md.getVersions() ) )
+        {
+            this.versions.addAll( md.getVersions() );
+        }
+
+        this.lastCheck = TimeUtil.getUTCTimestampAsLong();
+    }
+
+    public TreeSet<String> getVersions()
+    {
+        return versions;
+    }
+
+    public long getLastCheckTs()
+    {
+        return lastCheck;
+    }
+
+    public long getLastCheckMillis()
+        throws ParseException
+    {
+        return TimeUtil.toMillis( lastCheck );
+    }
+
+    public void update( Collection<String> versions )
+    {
+        this.versions.addAll( versions );
+        this.lastCheck = TimeUtil.getUTCTimestampAsLong();
+    }
+
+    public ArtifactCoordinates getGA()
+    {
+        return ga;
+    }
+
+    public boolean isExpired()
+    {
+        return expired;
+    }
+
+    public void setExpired( boolean expired )
+    {
+        this.expired = expired;
+    }
+
+    public boolean isNegativeResult()
+    {
+        return negativeResult;
+    }
+
+    public void setNegativeResult( boolean negativeResult )
+    {
+        this.negativeResult = negativeResult;
+    }
+    
+}

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Added: maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/RepositoryGAVMetadata.java
URL: http://svn.apache.org/viewvc/maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/RepositoryGAVMetadata.java?rev=767705&view=auto
==============================================================================
--- maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/RepositoryGAVMetadata.java (added)
+++ maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/RepositoryGAVMetadata.java Wed Apr 22 22:56:48 2009
@@ -0,0 +1,196 @@
+/**
+ *  Licensed to the Apache Software Foundation (ASF) under one
+ *  or more contributor license agreements.  See the NOTICE file
+ *  distributed with this work for additional information
+ *  regarding copyright ownership.  The ASF licenses this file
+ *  to you under the Apache License, Version 2.0 (the
+ *  "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *  Unless required by applicable law or agreed to in writing,
+ *  software distributed under the License is distributed on an
+ *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *  KIND, either express or implied.  See the License for the
+ *  specific language governing permissions and limitations
+ *  under the License.
+ */
+package org.apache.maven.mercury.repository.api;
+
+import java.text.ParseException;
+import java.util.Collection;
+import java.util.List;
+import java.util.TreeSet;
+
+import org.apache.maven.mercury.artifact.Artifact;
+import org.apache.maven.mercury.artifact.ArtifactCoordinates;
+import org.apache.maven.mercury.artifact.version.VersionComparator;
+import org.apache.maven.mercury.repository.metadata.Metadata;
+import org.apache.maven.mercury.repository.metadata.MetadataException;
+import org.apache.maven.mercury.repository.metadata.Snapshot;
+import org.apache.maven.mercury.util.TimeUtil;
+import org.apache.maven.mercury.util.Util;
+import org.codehaus.plexus.lang.DefaultLanguage;
+import org.codehaus.plexus.lang.Language;
+
+/**
+ * This is a data object to carry GA level repository metadata, namely - a list of versions and last check timestamp
+ * 
+ * @author Oleg Gusakov
+ * @version $Id$
+ */
+public class RepositoryGAVMetadata
+{
+    private static final Language LANG = new DefaultLanguage( RepositoryGAVMetadata.class );
+
+    protected ArtifactCoordinates gav;
+
+    /** a list of last discovered snapshots, ordered descending */
+    protected TreeSet<String> snapshots = new TreeSet<String>( new VersionComparator() );
+
+    /** a list of last discovered versions, ordered ascending */
+    protected Collection<String> classifiers;
+
+    /** GMT timestamp of the last metadata check */
+    protected long lastCheck;
+
+    /** is set true by cache implementation when determined that it's time to refresh */
+    protected transient boolean expired = false;
+
+    /** negative yes */
+    protected transient boolean negativeResult = false;
+
+    protected RepositoryGAVMetadata()
+    {
+    }
+
+    /**
+     * construct from maven 2.x maven-metadata.xml object
+     * 
+     * @param md
+     * @throws MetadataException
+     */
+    public RepositoryGAVMetadata( Metadata md )
+        throws MetadataException
+    {
+        if ( md == null )
+            throw new IllegalArgumentException( LANG.getMessage( "empty.mdbytes" ) );
+
+        this.gav = new ArtifactCoordinates( md.getGroupId(), md.getArtifactId(), md.getVersion() );
+
+        List<String> versions = null;
+
+        if ( md.getVersioning() != null )
+            versions = md.getVersioning().getVersions();
+
+        if ( !Util.isEmpty( versions ) )
+            this.snapshots.addAll( versions );
+
+        String version = md.getVersion();
+
+        if ( version != null && version.endsWith( Artifact.SNAPSHOT_VERSION ) )
+        {
+            Snapshot sn = md.getVersioning().getSnapshot();
+
+            if ( sn != null && !Util.isEmpty( sn.getTimestamp() ) && !Util.isEmpty( sn.getBuildNumber() ) )
+            {
+                String ts =
+                    version.replaceAll( Artifact.SNAPSHOT_VERSION, sn.getTimestamp() + '-' + sn.getBuildNumber() );
+                snapshots.add( ts );
+            }
+        }
+
+        this.lastCheck = TimeUtil.getUTCTimestampAsLong();
+    }
+
+    /**
+     * copy constructor
+     * 
+     * @param md
+     * @throws MetadataException
+     */
+    public RepositoryGAVMetadata( RepositoryGAVMetadata md )
+        throws MetadataException
+    {
+        this.gav = md.getGAV();
+
+        if ( !Util.isEmpty( md.getSnapshots() ) )
+            this.snapshots.addAll( md.getSnapshots() );
+
+        this.lastCheck = TimeUtil.getUTCTimestampAsLong();
+    }
+
+    public TreeSet<String> getSnapshots()
+    {
+        return snapshots;
+    }
+
+    public Collection<String> getClassifiers()
+    {
+        return classifiers;
+    }
+
+    /**
+     * find the most recent snapshot timestamp
+     * 
+     * @return
+     */
+    public String getSnapshot()
+    {
+        return snapshots.last();
+    }
+
+    public long getLastCheck()
+    {
+        return lastCheck;
+    }
+
+    public long getLastCheckMillis()
+        throws ParseException
+    {
+        return TimeUtil.toMillis( lastCheck );
+    }
+
+    public void updateSnapshots( Collection<String> snapshots )
+    {
+        this.snapshots.clear();
+
+        if ( !Util.isEmpty( snapshots ) )
+            this.snapshots.addAll( snapshots );
+
+        this.lastCheck = TimeUtil.getUTCTimestampAsLong();
+    }
+
+    public void updateClassifiers( Collection<String> classifiers )
+    {
+        this.classifiers = classifiers;
+        this.lastCheck = TimeUtil.getUTCTimestampAsLong();
+    }
+
+    public ArtifactCoordinates getGAV()
+    {
+        return gav;
+    }
+
+    public boolean isExpired()
+    {
+        return expired;
+    }
+
+    public void setExpired( boolean expired )
+    {
+        this.expired = expired;
+    }
+
+    public boolean isNegativeResult()
+    {
+        return negativeResult;
+    }
+
+    public void setNegativeResult( boolean negativeResult )
+    {
+        this.negativeResult = negativeResult;
+    }
+
+}

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Added: maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/RepositoryManager.java
URL: http://svn.apache.org/viewvc/maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/RepositoryManager.java?rev=767705&view=auto
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--- maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/RepositoryManager.java (added)
+++ maven/mercury/trunk/mercury-core/src/main/java/org/apache/maven/mercury/repository/api/RepositoryManager.java Wed Apr 22 22:56:48 2009
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+/**
+ *  Licensed to the Apache Software Foundation (ASF) under one
+ *  or more contributor license agreements.  See the NOTICE file
+ *  distributed with this work for additional information
+ *  regarding copyright ownership.  The ASF licenses this file
+ *  to you under the Apache License, Version 2.0 (the
+ *  "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *  Unless required by applicable law or agreed to in writing,
+ *  software distributed under the License is distributed on an
+ *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *  KIND, either express or implied.  See the License for the
+ *  specific language governing permissions and limitations
+ *  under the License.
+ */
+package org.apache.maven.mercury.repository.api;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import org.apache.maven.mercury.artifact.Quality;
+
+/**
+ * @author Oleg Gusakov
+ * @version $Id$
+ */
+public class RepositoryManager
+{
+    protected static transient List<Repository> _repoList =
+        Collections.synchronizedList( new ArrayList<Repository>( 8 ) );
+
+    void setRepositories()
+    {
+
+    }
+
+    List<Repository> getRepositories()
+    {
+        return _repoList;
+    }
+
+    LocalRepository findLocal( Quality aq )
+    {
+        for ( Repository r : _repoList )
+        {
+            if ( r.isLocal() && r.isWriteable() && r.isAcceptedQuality( aq ) )
+                return (LocalRepository) r;
+        }
+        return null;
+    }
+}

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