Application: gvSIG desktop

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 gvSIG Association.

 *

 * 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, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

 * MA 02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.fmap.mapcontext.layers;

import java.util.HashMap;

import java.util.Map;

import java.util.Map.Entry;

import java.util.Set;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dynobject.DynStruct;

import org.gvsig.tools.persistence.PersistenceManager;

import org.gvsig.tools.persistence.Persistent;

import org.gvsig.tools.persistence.PersistentState;

import org.gvsig.tools.persistence.exception.PersistenceException;

import org.gvsig.tools.util.Callable;

public class ExtendedPropertiesHelper implements ExtendedPropertiesSupport, Persistent {

    private static final Logger logger = LoggerFactory.getLogger(ExtendedPropertiesHelper.class);

    /*

    Add this to class that implements ExtendedPropertiesSupport

        private ExtendedPropertiesHelper propertiesHelper = new ExtendedPropertiesHelper();

    This methods

        public Object getProperty(Object key) {

            return this.propertiesHelper.getProperty(key);

        }

        public void setProperty(Object key, Object obj) {

            this.propertiesHelper.setProperty(key, obj);

        }

        public Map getExtendedProperties() {

            return this.propertiesHelper.getExtendedProperties();

        }

    To the persistence defnition

        definition.addDynFieldObject("propertiesHelper").setClassOfValue(ExtendedPropertiesHelper.class)

                        .setMandatory(false);

    To the loadFromState

        this.propertiesHelper = (ExtendedPropertiesHelper) state.get("propertiesHelper");

    And to the saveToState

        state.set("propertiesHelper",propertiesHelper);

    */

    private Map properties = new HashMap();

        @Override

    public Object getProperty(Object key) {

        return properties.get(key);

    }

        @Override

    public void setProperty(Object key, Object val) {

        properties.put(key, val);

    }

        @Override

    public Map getExtendedProperties() {

        return properties;

    }

    public void setExtendedProperties(Map properties) {

        this.properties = new HashMap();

                if( properties!=null ) {

                        // this.properties.putAll(properties);

                        this.copyFrom(properties);

                }

    }

        private void copyFrom(Map properties) {

                for(Entry entry : (Set<Entry>)properties.entrySet() ) {

                        Object key = entry.getKey();

                        if( key == null ) {

                                continue;

                        }

                        Object value;

                        try {

                                value = entry.getValue();

                        } catch(Throwable th) {

                if( logger.isDebugEnabled() ) {

                    logger.warn("Can't get property "+key.toString()+".",th);

                } else {

                    logger.warn("Can't get property "+key.toString()+".");

                }

                                value = null;

                        }

                        this.properties.put(key, value);

                }

        }

        @Override

    public void saveToState(PersistentState state) throws PersistenceException {

        state.set("properties", properties);

    }

        @Override

    public void loadFromState(PersistentState state) throws PersistenceException {

        this.properties = new HashMap();

        Map props = (Map) state.get("properties");

                if( props != null) {

                        copyFrom(props);

                }

    }

    public static class RegisterPersistence implements Callable {

                @Override

        public Object call() {

            PersistenceManager manager = ToolsLocator.getPersistenceManager();

            DynStruct definition = manager.addDefinition(

                    ExtendedPropertiesHelper.class,

                    "ExtendedPropertiesHelper",

                    "ExtendedPropertiesHelper Persistence definition",

                    null,

                    null

            );

            definition.addDynFieldMap("properties").setClassOfItems(Object.class)

                    .setMandatory(true);

            return Boolean.TRUE;

        }

    }

}