/**
* Copyright (C) 2005 - 2012 Eric Van Dewoestine
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.eclim.plugin.core.project;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import org.apache.commons.lang.ArrayUtils;
import org.eclim.logging.Logger;
import org.eclipse.core.resources.IProject;
/**
* Factory for registering project natures.
*
* @author Eric Van Dewoestine
*/
public class ProjectNatureFactory
{
private static final Logger logger =
Logger.getLogger(ProjectNatureFactory.class);
public static String NONE = "none";
private static Map<String,String[]> natureAliases =
new HashMap<String,String[]>();
/**
* Registers a project nature.
*
* @param alias The nature alias for users.
* @param nature The actual nature id the alias maps to.
*/
public static void addNature(String alias, String nature)
{
logger.debug("add nature alias: {}={}", alias, nature);
natureAliases.put(alias, new String[]{nature});
}
/**
* Registers a nature alias to an array of project nature ids.
*
* @param alias The nature alias for users.
* @param natures The array of actual nature ids the alias maps to.
*/
public static void addNature(String alias, String[] natures)
{
logger.debug("add nature alias: {}={}", alias, Arrays.toString(natures));
natureAliases.put(alias, natures);
}
/**
* Gets array of registered nature aliases.
*
* @return Array of aliases.
*/
public static String[] getNatureAliases()
{
return natureAliases.keySet().toArray(ArrayUtils.EMPTY_STRING_ARRAY);
}
/**
* Gets the map of natures aliases to ids.
*
* @return Map of aliases.
*/
public static Map<String,String[]> getNatureAliasesMap()
{
return Collections.unmodifiableMap(natureAliases);
}
/**
* Gets the nature id for the supplied alias.
*
* @param alias The nature alias.
* @return The nature or null if not found.
*/
public static String getNatureForAlias(String alias)
{
String[] natures = natureAliases.get(alias);
return natures != null ? natures[natures.length - 1] : null;
}
/**
* Gets the array of nature ids the supplied alias maps to.
*
* @param alias The nature alias.
* @return Array of nature ids or null if not found.
*/
public static String[] getNaturesForAlias(String alias)
{
return natureAliases.get(alias);
}
/**
* Gets the alias for a given nature id.
*
* @param natureId The nature id.
* @return The alias.
*/
public static String getAliasForNature(String natureId)
{
for(String key : natureAliases.keySet()){
if(natureId.equals(getNatureForAlias(key))){
return key;
}
}
return null;
}
/**
* Gets an array of natures aliases which are associated with the supplied
* project.
*
* @param project The project to get the aliases for.
* @return Array of aliases.
*/
public static String[] getProjectNatureAliases(IProject project)
throws Exception
{
ArrayList<String> aliases = new ArrayList<String>();
for(String key : natureAliases.keySet()){
if(project.hasNature(getNatureForAlias(key))){
aliases.add(key);
}
}
return aliases.toArray(new String[aliases.size()]);
}
/**
* Gets an array of natures which are associated with the supplied project.
*
* @param project The project to get the natures for.
* @return Array of natures.
*/
public static String[] getProjectNatures(IProject project)
throws Exception
{
ArrayList<String> natures = new ArrayList<String>();
for(String key : natureAliases.keySet()){
String[] ids = natureAliases.get(key);
for (String id : ids){
if(project.hasNature(id)){
natures.add(id);
}
}
}
return natures.toArray(new String[natures.size()]);
}
}