package org.apache.maven.plugin.eclipse.writers.myeclipse;

 import java.io.File;

 import java.io.FileWriter;

 import java.io.IOException;

 import java.util.HashMap;

 import java.util.Map;

 import org.apache.maven.plugin.MojoExecutionException;

 import org.apache.maven.plugin.eclipse.Constants;

 import org.apache.maven.plugin.eclipse.Messages;

 import org.apache.maven.plugin.eclipse.writers.AbstractEclipseWriter;

 import org.apache.maven.plugin.ide.IdeUtils;

 import org.codehaus.plexus.util.IOUtil;

 import org.codehaus.plexus.util.xml.PrettyPrintXMLWriter;

 import org.codehaus.plexus.util.xml.XMLWriter;

 /**

  * MyEclipse .mystrutsdata configuration file writer

  * 

  * @author Olivier Jacob

  */

 public class MyEclipseStrutsDataWriter

     extends AbstractEclipseWriter

 {

     private static final String MYECLIPSE_MYSTRUTSDATA_FILENAME = ".mystrutsdata";

     private static final String MYECLIPSE_STRUTS_PROPERTIES = "MyEclipseStrutsProperties";

     private static final String MYECLIPSE_STRUTS_VERSION = "strutsVersion";

     private static final String MYECLIPSE_STRUTS_BASE_PACKAGE = "basePackage";

     private static final String MYECLIPSE_STRUTS_PATTERN = "strutsPattern";

     private static final String MYECLIPSE_STRUTS_SERVLET_NAME = "servletName";

     private static final String MYECLIPSE_STRUTS_DEFAULT_PATTERN = "*.do";

     private static final String MYECLIPSE_STRUTS_SERVLET_DEFAULT_NAME = "action";

     private static Map strutsPatterns;

     private Map strutsProps;

     /**

      * Receive struts properties map from plugin

      * 

      * @param strutsProps

      * @see org.apache.maven.plugin.eclipse.MyEclipsePlugin#struts

      */

     public MyEclipseStrutsDataWriter( Map strutsProps )

     {

         this.strutsProps = strutsProps;

         strutsPatterns = new HashMap();

         strutsPatterns.put( "*.do", "0" );

         strutsPatterns.put( "/do/*", "1" );

     }

     /**

      * Write MyEclipse .mystrutsdata configuration file

      * 

      * @throws MojoExecutionException

      */

     public void write()

         throws MojoExecutionException

     {

         String packaging = config.getProject().getPackaging();

         if ( Constants.PROJECT_PACKAGING_WAR.equals( packaging ) )

         {

             FileWriter w;

             try

             {

                 w = new FileWriter( new File( config.getEclipseProjectDirectory(), MYECLIPSE_MYSTRUTSDATA_FILENAME ) );

             }

             catch ( IOException ex )

             {

                 throw new MojoExecutionException( Messages.getString( "EclipsePlugin.erroropeningfile" ), ex ); //$NON-NLS-1$

             }

             XMLWriter writer = new PrettyPrintXMLWriter( w, "UTF-8", null );

             writer.startElement( MYECLIPSE_STRUTS_PROPERTIES );

             writer.startElement( MYECLIPSE_STRUTS_VERSION );

             writer.writeText( getStrutsVersion() );

             writer.endElement();

             writer.startElement( MYECLIPSE_STRUTS_BASE_PACKAGE );

             writer.writeText( getBasePackage() );

             writer.endElement();

             writer.startElement( MYECLIPSE_STRUTS_PATTERN );

             writer.writeText( getStrutsPattern() );

             writer.endElement();

             writer.startElement( MYECLIPSE_STRUTS_SERVLET_NAME );

             writer.writeText( getStrutsServletName() );

             writer.endElement();

             // Close <MyEclipseStrutsProperties>

             writer.endElement();

             IOUtil.close( w );

         }

     }

     /**

      * Retrieve Struts version from plugin configuration or if not specified from project dependencies. If none is

      * specified, use 1.2.9 as default

      * 

      * @return my eclipse struts version code

      */

     private String getStrutsVersion()

     {

         String version;

         if ( strutsProps != null && strutsProps.get( "version" ) != null )

         {

             version = (String) strutsProps.get( "version" );

         }

         else

         {

             version =

                 IdeUtils.getArtifactVersion( new String[] { "struts", "struts-core" },

                                              config.getProject().getDependencies(), 5 );

             // Newest version supported by MyEclipse is Struts 1.2.x

             if ( version == null )

             {

                 version = "1.2.9";

             }

         }

         int firstDotIndex = version.indexOf( '.' );

         int secondDotIndex = version.indexOf( '.', firstDotIndex + 1 );

         String majorVersion = version.substring( firstDotIndex + 1, secondDotIndex );

         int v = Integer.parseInt( majorVersion );

         return v > 2 ? "2" : majorVersion;

     }

     /**

      * Retrieve struts actions base package name from plugin configuration or use project groupId if not set

      * 

      * @return String

      */

     private String getBasePackage()

     {

         if ( strutsProps != null && strutsProps.get( "base-package" ) != null )

         {

             return (String) strutsProps.get( "base-package" );

         }

         return config.getProject().getGroupId();

     }

     /**

      * Retrieve Struts servlet url-pattern from plugin configuration and convert it to the code MyEclipse uses. If not

      * set, use "*.do" as default

      * 

      * @return String

      */

     private String getStrutsPattern()

     {

         if ( strutsProps != null && strutsProps.get( "pattern" ) != null )

         {

             String pattern = (String) strutsPatterns.get( strutsProps.get( "pattern" ) );

             return pattern != null ? pattern : (String) strutsPatterns.get( MYECLIPSE_STRUTS_DEFAULT_PATTERN );

         }

         return (String) strutsPatterns.get( MYECLIPSE_STRUTS_DEFAULT_PATTERN );

     }

     /**

      * Retrieve Struts servlet name from plugin configuration. Use "action" as default

      * 

      * @return

      */

     private String getStrutsServletName()

     {

         if ( strutsProps != null && strutsProps.get( "servlet-name" ) != null )

         {

             return (String) strutsProps.get( "servlet-name" );

         }

         return MYECLIPSE_STRUTS_SERVLET_DEFAULT_NAME;

     }

 }