001 /*
002 * JBoss DNA (http://www.jboss.org/dna)
003 * See the COPYRIGHT.txt file distributed with this work for information
004 * regarding copyright ownership. Some portions may be licensed
005 * to Red Hat, Inc. under one or more contributor license agreements.
006 * See the AUTHORS.txt file in the distribution for a full listing of
007 * individual contributors.
008 *
009 * JBoss DNA is free software. Unless otherwise indicated, all code in JBoss DNA
010 * is licensed to you under the terms of the GNU Lesser General Public License as
011 * published by the Free Software Foundation; either version 2.1 of
012 * the License, or (at your option) any later version.
013 *
014 * JBoss DNA is distributed in the hope that it will be useful,
015 * but WITHOUT ANY WARRANTY; without even the implied warranty of
016 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
017 * Lesser General Public License for more details.
018 *
019 * You should have received a copy of the GNU Lesser General Public
020 * License along with this software; if not, write to the Free
021 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
022 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
023 */
024 package org.jboss.dna.connector.federation.contribution;
025
026 import java.util.Iterator;
027 import net.jcip.annotations.Immutable;
028 import org.jboss.dna.graph.Location;
029 import org.jboss.dna.graph.property.DateTime;
030 import org.jboss.dna.graph.property.Name;
031 import org.jboss.dna.graph.property.Property;
032
033 /**
034 * The record of a source contributing only properties to a node.
035 *
036 * @author Randall Hauch
037 */
038 @Immutable
039 public class TwoPropertyContribution extends NonEmptyContribution {
040
041 /**
042 * This is the first version of this class. See the documentation of MergePlan.serialVersionUID.
043 */
044 private static final long serialVersionUID = 1L;
045
046 private final Property property1;
047 private final Property property2;
048
049 /**
050 * Create a contribution of node properties from the source with the supplied name.
051 *
052 * @param sourceName the name of the source, which may not be null or blank
053 * @param workspaceName the name of the workspace, which may not be null or blank
054 * @param locationInSource the path in the source for this contributed information; may not be null
055 * @param expirationTime the time (in UTC) after which this contribution should be considered expired, or null if there is no
056 * expiration time
057 * @param property1 the first property from the source; may not be null
058 * @param property2 the first property from the source; may not be null
059 */
060 public TwoPropertyContribution( String sourceName,
061 String workspaceName,
062 Location locationInSource,
063 DateTime expirationTime,
064 Property property1,
065 Property property2 ) {
066 super(sourceName, workspaceName, locationInSource, expirationTime);
067 assert property1 != null;
068 assert property1.isEmpty() == false;
069 assert property2 != null;
070 assert property2.isEmpty() == false;
071 this.property1 = property1;
072 this.property2 = property2;
073 if (ContributionStatistics.RECORD) ContributionStatistics.record(2, 0);
074 }
075
076 /**
077 * {@inheritDoc}
078 *
079 * @see org.jboss.dna.connector.federation.contribution.Contribution#getProperties()
080 */
081 @Override
082 public Iterator<Property> getProperties() {
083 return new TwoValueIterator<Property>(property1, property2);
084 }
085
086 /**
087 * {@inheritDoc}
088 *
089 * @see org.jboss.dna.connector.federation.contribution.Contribution#getPropertyCount()
090 */
091 @Override
092 public int getPropertyCount() {
093 return 2;
094 }
095
096 /**
097 * {@inheritDoc}
098 *
099 * @see org.jboss.dna.connector.federation.contribution.Contribution#getProperty(org.jboss.dna.graph.property.Name)
100 */
101 @Override
102 public Property getProperty( Name name ) {
103 if (this.property1.getName().equals(name)) return property1;
104 if (this.property2.getName().equals(name)) return property2;
105 return null;
106 }
107
108 }