WatchListStore.java

/*
 * Copyright (c) 2004-2011 Marco Maccaferri and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Marco Maccaferri - initial API and implementation
 */

package org.eclipsetrader.repository.hibernate.internal.stores;

import java.net.URI;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.List;

import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.OneToMany;
import javax.persistence.OrderBy;
import javax.persistence.Table;
import javax.persistence.Transient;
import javax.persistence.Version;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipsetrader.core.repositories.IPropertyConstants;
import org.eclipsetrader.core.repositories.IRepository;
import org.eclipsetrader.core.repositories.IRepositoryElementFactory;
import org.eclipsetrader.core.repositories.IStore;
import org.eclipsetrader.core.repositories.IStoreProperties;
import org.eclipsetrader.core.repositories.StoreProperties;
import org.eclipsetrader.core.views.IColumn;
import org.eclipsetrader.core.views.IHolding;
import org.eclipsetrader.core.views.IWatchList;
import org.eclipsetrader.repository.hibernate.HibernateRepository;
import org.eclipsetrader.repository.hibernate.internal.types.RepositoryFactoryType;
import org.eclipsetrader.repository.hibernate.internal.types.WatchListColumn;
import org.eclipsetrader.repository.hibernate.internal.types.WatchListHolding;
import org.hibernate.Session;
import org.hibernate.annotations.GenericGenerator;
import org.hibernate.annotations.Target;
import org.hibernate.annotations.Type;

@Entity
@Table(name = "watchlists")
public class WatchListStore implements IStore {

    @Id
    @Column(name = "id", length = 32)
    @GeneratedValue(generator = "system-uuid")
    @GenericGenerator(name = "system-uuid", strategy = "uuid")
    private String id;

    @Version
    @Column(name = "version")
    @SuppressWarnings("unused")
    private Integer version;

    @Column(name = "factory")
    @Type(type = "string")
    @Target(RepositoryFactoryType.class)
    private IRepositoryElementFactory factory;

    @Column(name = "name")
    private String name;

    @OneToMany(mappedBy = "watchlist", cascade = CascadeType.ALL)
    @OrderBy("index")
    private List<WatchListColumn> columns = new ArrayList<WatchListColumn>();

    @OneToMany(mappedBy = "watchlist", cascade = CascadeType.ALL)
    @OrderBy("index")
    private List<WatchListHolding> elements = new ArrayList<WatchListHolding>();

    @Transient
    private HibernateRepository repository;

    public WatchListStore() {
    }

    public WatchListStore(HibernateRepository repository) {
        this.repository = repository;
    }

    public void setRepository(HibernateRepository repository) {
        this.repository = repository;
    }

    /* (non-Javadoc)
     * @see org.eclipsetrader.core.repositories.IStore#toURI()
     */
    @Override
    public URI toURI() {
        try {
            return new URI(repository.getSchema(), HibernateRepository.URI_WATCHLIST_PART, id);
        } catch (URISyntaxException e) {
        }
        return null;
    }

    /* (non-Javadoc)
     * @see org.eclipsetrader.core.repositories.IStore#fetchProperties(org.eclipse.core.runtime.IProgressMonitor)
     */
    @Override
    public IStoreProperties fetchProperties(IProgressMonitor monitor) {
        StoreProperties properties = new StoreProperties();

        properties.setProperty(IPropertyConstants.ELEMENT_FACTORY, factory);
        properties.setProperty(IPropertyConstants.OBJECT_TYPE, IWatchList.class.getName());

        properties.setProperty(IPropertyConstants.NAME, name);
        properties.setProperty(IPropertyConstants.COLUMNS, columns.toArray(new IColumn[columns.size()]));
        properties.setProperty(IPropertyConstants.HOLDINGS, elements.toArray(new IHolding[elements.size()]));

        return properties;
    }

    /* (non-Javadoc)
     * @see org.eclipsetrader.core.repositories.IStore#putProperties(org.eclipsetrader.core.repositories.IStoreProperties, org.eclipse.core.runtime.IProgressMonitor)
     */
    @Override
    public void putProperties(IStoreProperties properties, IProgressMonitor monitor) {
        Session session = repository.getSession();

        this.factory = (IRepositoryElementFactory) properties.getProperty(IPropertyConstants.ELEMENT_FACTORY);

        this.name = (String) properties.getProperty(IPropertyConstants.NAME);

        IColumn[] c = (IColumn[]) properties.getProperty(IPropertyConstants.COLUMNS);
        if (c != null) {
            for (WatchListColumn column : this.columns) {
                session.delete(column);
            }
            this.columns.clear();

            for (int i = 0; i < c.length; i++) {
                this.columns.add(new WatchListColumn(c[i], this, i));
            }
        }

        IHolding[] e = (IHolding[]) properties.getProperty(IPropertyConstants.HOLDINGS);
        if (e != null) {
            for (WatchListHolding holding : this.elements) {
                session.delete(holding);
            }
            this.elements.clear();

            for (int i = 0; i < e.length; i++) {
                this.elements.add(new WatchListHolding(e[i], this, i));
            }
        }

        session.save(this);
    }

    /* (non-Javadoc)
     * @see org.eclipsetrader.core.repositories.IStore#delete(org.eclipse.core.runtime.IProgressMonitor)
     */
    @Override
    public void delete(IProgressMonitor monitor) throws CoreException {
        Session session = repository.getSession();
        session.delete(this);
    }

    /* (non-Javadoc)
     * @see org.eclipsetrader.core.repositories.IStore#fetchChilds(org.eclipse.core.runtime.IProgressMonitor)
     */
    @Override
    public IStore[] fetchChilds(IProgressMonitor monitor) {
        return new IStore[0];
    }

    /* (non-Javadoc)
     * @see org.eclipsetrader.core.repositories.IStore#createChild()
     */
    @Override
    public IStore createChild() {
        return null;
    }

    /* (non-Javadoc)
     * @see org.eclipsetrader.core.repositories.IStore#getRepository()
     */
    @Override
    @Transient
    public IRepository getRepository() {
        return repository;
    }
}