org.obm.sync.calendar.EventExtId.java Source code

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Here is the source code for org.obm.sync.calendar.EventExtId.java

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/* ***** BEGIN LICENSE BLOCK *****
 * 
 * Copyright (C) 2011-2014  Linagora
 *
 * This program is free software: you can redistribute it and/or 
 * modify it under the terms of the GNU Affero General Public License as 
 * published by the Free Software Foundation, either version 3 of the 
 * License, or (at your option) any later version, provided you comply 
 * with the Additional Terms applicable for OBM connector by Linagora 
 * pursuant to Section 7 of the GNU Affero General Public License, 
 * subsections (b), (c), and (e), pursuant to which you must notably (i) retain 
 * the Message sent thanks to OBM, Free Communication by Linagora? 
 * signature notice appended to any and all outbound messages 
 * (notably e-mail and meeting requests), (ii) retain all hypertext links between 
 * OBM and obm.org, as well as between Linagora and linagora.com, and (iii) refrain 
 * from infringing Linagora intellectual property rights over its trademarks 
 * and commercial brands. Other Additional Terms apply, 
 * see <http://www.linagora.com/licenses/> for more details. 
 *
 * 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 Affero General Public License 
 * for more details. 
 *
 * You should have received a copy of the GNU Affero General Public License 
 * and its applicable Additional Terms for OBM along with this program. If not, 
 * see <http://www.gnu.org/licenses/> for the GNU Affero General Public License version 3 
 * and <http://www.linagora.com/licenses/> for the Additional Terms applicable to 
 * OBM connectors. 
 * 
 * ***** END LICENSE BLOCK ***** */
package org.obm.sync.calendar;

import java.io.Serializable;

import org.obm.push.utils.UUIDFactory;

import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Objects;
import com.google.common.base.Strings;
import com.google.inject.Inject;
import com.google.inject.Singleton;

public class EventExtId implements Serializable {

    @Singleton
    public static class Factory {

        private final UUIDFactory uuidFactory;

        @Inject
        @VisibleForTesting
        Factory(UUIDFactory uuidFactory) {
            this.uuidFactory = uuidFactory;
        }

        public EventExtId create(String extId) {
            return new EventExtId(extId);
        }

        public EventExtId generate() {
            return new EventExtId(uuidFactory.randomUUID().toString());
        }
    }

    private final String extId;

    public EventExtId(String extId) {
        this.extId = Strings.emptyToNull(extId);
    }

    public String getExtId() {
        return extId;
    }

    public String serializeToString() {
        return extId;
    }

    @Override
    public final boolean equals(Object obj) {
        if (obj instanceof EventExtId) {
            EventExtId other = (EventExtId) obj;
            return Objects.equal(extId, other.extId);
        }
        return false;
    }

    @Override
    public final int hashCode() {
        return Objects.hashCode(extId);
    }

    @Override
    public String toString() {
        return Objects.toStringHelper(this).add("extId", extId).toString();
    }

}