Application: gvSIG desktop » Library: org.gvsig.tools

package org.gvsig.tools.resourcesstorage;

import java.util.ArrayList;

import java.util.Collections;

import java.util.List;

import java.util.Locale;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.i18n.I18nManager;

/**

 *

 * @author jjdelcerro

 */

public abstract class AbstractResourcesStorage implements ResourcesStorage {

    public static abstract class AbstractResource implements ResourcesStorage.Resource {

      protected String name;

      protected AbstractResource(String name) {

        this.name = name;

      }

      @Override

      public String getName() {

        return this.name;

      }

    }

    @Override

    public String getSeparator() {

        return ".";

    }

    @Override

    public boolean isEmpty() {

        return false;

    }

    @Override

    public boolean isReadOnly() {

        return false;

    }

    @Override

    public List<Resource> getResources(String resourceName) {

        if( this.isEmpty() ) {

            return null;

        }

        List<ResourcesStorage.Resource>ress = new ArrayList<>();

        int n = 0;

        while(true) {

            String multiresourceName;

            if( n==0 ) {

                multiresourceName = resourceName;

            } else {

                multiresourceName = String.valueOf(n) + this.getSeparator() + resourceName ;

            }

            Resource res = this.getResource(multiresourceName);

            if( !res.exists() ) {

                break;

            }

            ress.add(res);

            n++;

        }

        if( ress.isEmpty() ) {

            return null;

        }

        return ress;

    }

    @Override

    public boolean exists(String name) {

        if( this.isEmpty() ) {

            return false;

        }

        Resource res = null;

        try {

            res = this.getResource(name);

            return res.exists();

        } finally {

            if( res !=null ) {

                res.close();

            }

        }

    }

    @Override

    public Resource getLocalizedResource(String resourceName) {

        I18nManager i18n = ToolsLocator.getI18nManager();

        Locale currentlocale = i18n.getCurrentLocale();

        if( currentlocale != null ) {

            String localizedName = currentlocale.getLanguage() + this.getSeparator() + resourceName;

            if( this.exists(localizedName) ) {

                return this.getResource(localizedName);

            }

            List<Locale> locales = i18n.getPreferredLocales();

            if( locales!=null ) {

                for (Locale locale : locales) {

                    localizedName = locale.getLanguage() + this.getSeparator() + resourceName;

                    if( this.exists(localizedName) ) {

                        return this.getResource(localizedName);

                    }

                }

            }

        }

        return this.getResource(resourceName);

    }

    @Override

    public List<Resource> getLocalizedResources(String resourceName) {

        if( this.isEmpty() ) {

            return null;

        }

        List<ResourcesStorage.Resource>ress = new ArrayList<>();

        int n = 0;

        while(true) {

            String multiresourceName;

            if( n==0 ) {

                multiresourceName = resourceName;

            } else {

                multiresourceName = resourceName + this.getSeparator() + String.valueOf(n);

            }

            Resource res = this.getLocalizedResource(multiresourceName);

            if( !res.exists() ) {

                break;

            }

            ress.add(res);

            n++;

        }

        if( ress.isEmpty() ) {

            return null;

        }

        return ress;

    }

  @Override

  public List<String> getResourceNames() {

    return Collections.EMPTY_LIST;

  }

}