package org.litesoft.configuration;

import java.util.*;

import org.litesoft.core.util.*;

public class MapConfigDataAccessor implements ConfigDataAccessor
{
    private final Map<String, String> mKeyValues = new HashMap<String, String>();
    private String mLoadedFrom;

    public MapConfigDataAccessor( String pLoadedFrom, Map<String, String> pKeyValues )
    {
        mLoadedFrom = pLoadedFrom;
        if ( null != pKeyValues )
        {
            mKeyValues.putAll( pKeyValues );
        }
    }

    public String loadedFrom()
    {
        return mLoadedFrom;
    }

    public String loadedFromDirectory()
    {
        return null;
    }

    public Level[] getSetableSupportedLevels()
    {
        return new Level[]{Level.RUN};
    }

    public void setKeyValue( Level pLevel, String pKey, String pValue )
            throws UnsupportedOperationException
    {
        if ( pKey != null )
        {
            if ( (pLevel != null) && (Level.RUN != pLevel) )
            {
                throw new UnsupportedOperationException( "setKeyValue on Level: " + pLevel );
            }
            synchronized ( mKeyValues )
            {
                mKeyValues.put( pKey, pValue );
            }
        }
    }

    public String[] getAllKeys()
    {
        synchronized ( mKeyValues )
        {
            return mKeyValues.isEmpty() ? //
                   UtilsCommon.EMPTY_STRING_ARRAY : //
                   mKeyValues.keySet().toArray( new String[mKeyValues.size()] );
        }
    }

    public String getString( String pKey )
    {
        synchronized ( mKeyValues )
        {
            return (pKey == null) ? null : mKeyValues.get( pKey );
        }
    }

    public void replace( String pLinesStartingWith, String... pKeyValuePairs )
    {
        synchronized ( mKeyValues )
        {
            String[] zKeys = mKeyValues.keySet().toArray( new String[mKeyValues.size()] );
            for ( String zKey : zKeys )
            {
                if ( zKey.startsWith( pLinesStartingWith ) )
                {
                    mKeyValues.remove( zKey );
                }
            }
            UtilsCommon.addPropertiesTo( mKeyValues, pKeyValuePairs );
        }
    }
}