Java tutorial
/** * Constellio, Open Source Enterprise Search * Copyright (C) 2010 DocuLibre inc. * * This copyrighted material is made available to anyone wishing to use, modify, * copy, or redistribute it subject to the terms and conditions of the GNU * Lesser General Public License, as published by the Free Software Foundation. * * 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 Lesser General Public License * for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this distribution; if not, write to: * Free Software Foundation, Inc. * 51 Franklin Street, Fifth Floor * Boston, MA 02110-1301 USA */ package com.doculibre.constellio.feedprotocol.model.impl; import java.util.ArrayList; import java.util.Collection; import java.util.Collections; import java.util.List; import org.apache.commons.collections.CollectionUtils; import com.doculibre.constellio.feedprotocol.model.FeedGroup; import com.doculibre.constellio.feedprotocol.model.FeedRecord; import com.doculibre.constellio.feedprotocol.model.ParseFeedException; public class FeedGroupImpl implements FeedGroup { private static final String ADD = "add"; //RecordImpl must see it static final String DELETE = "delete"; private final List<FeedRecord> records; private final ACTION action; public FeedGroupImpl(List<FeedRecord> records) throws ParseFeedException { this(ADD, records); } public FeedGroupImpl(String action, List<FeedRecord> records) throws ParseFeedException { if (action == null) { this.action = ACTION.ADD; } else if (action.equals(ADD)) { this.action = ACTION.ADD; } else if (action.equals(DELETE)) { this.action = ACTION.DELETE; } else { throw new ParseFeedException("Invalid action: " + action); } if (CollectionUtils.isEmpty((Collection) records)) { throw new ParseFeedException("Records is empty"); } List<FeedRecord> recordsTemp = new ArrayList<FeedRecord>(); recordsTemp.addAll(records); this.records = Collections.unmodifiableList(recordsTemp); } /* * (non-Javadoc) * * @see com.doculibre.search.protocol.feed.model.impl.Group#getRecords() */ public List<FeedRecord> getRecords() { return records; } /* * (non-Javadoc) * * @see com.doculibre.search.protocol.feed.model.impl.Group#getAction() */ public ACTION getAction() { return action; } }