/* GeoTools - The Open Source Java GIS Toolkit
 * http://geotools.org
 *
 * (C) 2010-2015, Open Source Geospatial Foundation (OSGeo)
 *
 * This file is hereby placed into the Public Domain. This means anyone is
 * free to do whatever they wish with this file. Use it well and enjoy!
 */
package org.geotools.data.csv;

import java.io.IOException;

import org.geotools.data.FeatureReader;
import org.geotools.data.FeatureWriter;
import org.geotools.data.Query;
import org.geotools.data.QueryCapabilities;
import org.geotools.data.ResourceInfo;
import org.geotools.data.Transaction;
import org.geotools.data.csv.parse.CSVStrategy;
import org.geotools.data.store.ContentEntry;
import org.geotools.data.store.ContentFeatureStore;
import org.geotools.data.store.ContentState;
import org.geotools.geometry.jts.ReferencedEnvelope;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.feature.simple.SimpleFeatureType;
import org.opengis.feature.type.Name;

/**
 * Read-write access to CSV File.
 * 
 * @author Jody Garnett (Boundless)
 * @author Ian Turton (Envitia)
 */
public class CSVFeatureStore extends ContentFeatureStore {
	private CSVStrategy csvStrategy;
	private CSVFileState csvFileState;
	
    public CSVFeatureStore(CSVStrategy csvStrategy, CSVFileState csvFileState, 
    		ContentEntry entry, Query query) {
        super(entry, query);
        this.csvStrategy = csvStrategy;
        this.csvFileState = csvFileState;
    }
    // header end
    // getWriter start
    //
    // CSVFeatureStore implementations
    //
    @Override
    protected FeatureWriter<SimpleFeatureType, SimpleFeature> getWriterInternal(Query query,
            int flags) throws IOException {
        return new CSVFeatureWriter(this.csvFileState, this.csvStrategy, query);
    }
    // getWriter end
    
    // transaction start
    /**
     * Delegate used for FeatureSource methods (We do this because Java cannot inherit from both ContentFeatureStore and CSVFeatureSource at the same
     * time
     */
    CSVFeatureSource delegate = new CSVFeatureSource(entry, query) {
        @Override
        public void setTransaction(Transaction transaction) {
            super.setTransaction(transaction);
            CSVFeatureStore.this.setTransaction(transaction); // Keep these two implementations on the same transaction
        }
    };

    @Override
    public void setTransaction(Transaction transaction) {
        super.setTransaction(transaction);
        if( delegate.getTransaction() != transaction ){
            delegate.setTransaction( transaction );
        }
    }
    // transaction end
    
    // internal start
    //
    // Internal Delegate Methods
    // Implement FeatureSource methods using CSVFeatureSource implementation
    //
    @Override
    protected SimpleFeatureType buildFeatureType() throws IOException {
        return delegate.buildFeatureType();
    }

    @Override
    protected ReferencedEnvelope getBoundsInternal(Query query) throws IOException {
        return delegate.getBoundsInternal(query);
    }

    @Override
    protected int getCountInternal(Query query) throws IOException {
        return delegate.getCountInternal(query);
    }
    
    @Override
    protected FeatureReader<SimpleFeatureType, SimpleFeature> getReaderInternal(Query query)
            throws IOException {
        return delegate.getReaderInternal(query);
    }
    // internal end
    
    // public start
    //
    // Public Delegate Methods
    // Implement FeatureSource methods using CSVFeatureSource implementation
    //
    @Override
    public CSVDataStore getDataStore() {
        return delegate.getDataStore();
    }

    @Override
    public ContentEntry getEntry() {
        return delegate.getEntry();
    }

    public Transaction getTransaction() {
        return delegate.getTransaction();
    }

    public ContentState getState() {
        return delegate.getState();
    }

    public ResourceInfo getInfo() {
        return delegate.getInfo();
    }

    public Name getName() {
        return delegate.getName();
    }

    public QueryCapabilities getQueryCapabilities() {
        return delegate.getQueryCapabilities();
    }
    // public start

}