package org.apache.maven.toolchain.java;

/*
 * 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.
 */

import java.io.File;
import java.util.Map.Entry;
import java.util.Properties;

import org.apache.maven.toolchain.MisconfiguredToolchainException;
import org.apache.maven.toolchain.RequirementMatcherFactory;
import org.apache.maven.toolchain.ToolchainFactory;
import org.apache.maven.toolchain.ToolchainPrivate;
import org.apache.maven.toolchain.model.ToolchainModel;
import org.codehaus.plexus.component.annotations.Component;
import org.codehaus.plexus.component.annotations.Requirement;
import org.codehaus.plexus.logging.Logger;
import org.codehaus.plexus.util.FileUtils;
import org.codehaus.plexus.util.xml.Xpp3Dom;

/**
 *
 * @author mkleint
 * @since 2.0.9
 */
@Component( role = ToolchainFactory.class, hint = "jdk" )
public class DefaultJavaToolchainFactory
    implements ToolchainFactory
{

    @Requirement
    private Logger logger;

    public DefaultJavaToolchainFactory()
    {
    }

    public ToolchainPrivate createToolchain( ToolchainModel model )
        throws MisconfiguredToolchainException
    {
        if ( model == null )
        {
            return null;
        }
        DefaultJavaToolchain jtc = new DefaultJavaToolchain( model, logger );
        Xpp3Dom dom = (Xpp3Dom) model.getConfiguration();
        Xpp3Dom javahome = dom.getChild( DefaultJavaToolchain.KEY_JAVAHOME );
        if ( javahome == null )
        {
            throw new MisconfiguredToolchainException( "Java toolchain without the "
                + DefaultJavaToolchain.KEY_JAVAHOME + " configuration element." );
        }
        File normal = new File( FileUtils.normalize( javahome.getValue() ) );
        if ( normal.exists() )
        {
            jtc.setJavaHome( FileUtils.normalize( javahome.getValue() ) );
        }
        else
        {
            throw new MisconfiguredToolchainException( "Non-existing JDK home configuration at "
                + normal.getAbsolutePath() );
        }

        //now populate the provides section.
        Properties provides = model.getProvides(); 
        for ( Entry<Object, Object> provide : provides.entrySet() )
        {
            String key = (String) provide.getKey();
            String value = (String) provide.getValue();
            if ( value == null )
            {
                throw new MisconfiguredToolchainException(
                    "Provides token '" + key + "' doesn't have any value configured." );
            }
            if ( "version".equals( key ) )
            {
                jtc.addProvideToken( key, RequirementMatcherFactory.createVersionMatcher( value ) );
            }
            else
            {
                jtc.addProvideToken( key, RequirementMatcherFactory.createExactMatcher( value ) );
            }
        }
        return jtc;
    }

    public ToolchainPrivate createDefaultToolchain()
    {
        //not sure it's necessary to provide a default toolchain here.
        //only version can be eventually supplied, and
        return null;
    }

    protected Logger getLogger()
    {
        return logger;
    }

}
@@ -1470,16 +1470,43 @@
 %0A%0A/**%0A *
+ JDK toolchain factory.%0A * 
 %0A * @aut
@@ -1720,62 +1720,8 @@
 r;%0A%0A
-    public DefaultJavaToolchainFactory()%0A    %7B%0A    %7D%0A%0A
     
@@ -1903,32 +1903,33 @@
 null;%0A        %7D%0A
+%0A
         DefaultJ
@@ -1993,744 +1993,8 @@
 r );
-%0A        Xpp3Dom dom = (Xpp3Dom) model.getConfiguration();%0A        Xpp3Dom javahome = dom.getChild( DefaultJavaToolchain.KEY_JAVAHOME );%0A        if ( javahome == null )%0A        %7B%0A            throw new MisconfiguredToolchainException( %22Java toolchain without the %22%0A                + DefaultJavaToolchain.KEY_JAVAHOME + %22 configuration element.%22 );%0A        %7D%0A        File normal = new File( FileUtils.normalize( javahome.getValue() ) );%0A        if ( normal.exists() )%0A        %7B%0A            jtc.setJavaHome( FileUtils.normalize( javahome.getValue() ) );%0A        %7D%0A        else%0A        %7B%0A            throw new MisconfiguredToolchainException( %22Non-existing JDK home configuration at %22%0A                + normal.getAbsolutePath() );%0A        %7D
 %0A%0A  
@@ -2005,11 +2005,8 @@
   //
-now
  pop
@@ -2031,17 +2031,16 @@
  section
-.
 %0A       
@@ -2266,24 +2266,25 @@
 getValue();%0A
+%0A
             
@@ -2472,32 +2472,33 @@
 ;%0A            %7D%0A
+%0A
             if (
@@ -2799,32 +2799,816 @@
     %7D%0A        %7D%0A
+%0A        // populate the configuration section%0A        Xpp3Dom dom = (Xpp3Dom) model.getConfiguration();%0A        Xpp3Dom javahome = dom.getChild( DefaultJavaToolchain.KEY_JAVAHOME );%0A        if ( javahome == null )%0A        %7B%0A            throw new MisconfiguredToolchainException( %22Java toolchain without the %22%0A                + DefaultJavaToolchain.KEY_JAVAHOME + %22 configuration element.%22 );%0A        %7D%0A        File normal = new File( FileUtils.normalize( javahome.getValue() ) );%0A        if ( normal.exists() )%0A        %7B%0A            jtc.setJavaHome( FileUtils.normalize( javahome.getValue() ) );%0A        %7D%0A        else%0A        %7B%0A            throw new MisconfiguredToolchainException( %22Non-existing JDK home configuration at %22%0A                + normal.getAbsolutePath() );%0A        %7D%0A%0A
         return j

prepare provides before configuration, to follown descriptor logic