001 /* 002 * JBoss, Home of Professional Open Source. 003 * Copyright 2008, Red Hat Middleware LLC, and individual contributors 004 * as indicated by the @author tags. See the copyright.txt file in the 005 * distribution for a full listing of individual contributors. 006 * 007 * This is free software; you can redistribute it and/or modify it 008 * under the terms of the GNU Lesser General Public License as 009 * published by the Free Software Foundation; either version 2.1 of 010 * the License, or (at your option) any later version. 011 * 012 * This software is distributed in the hope that it will be useful, 013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 015 * Lesser General Public License for more details. 016 * 017 * You should have received a copy of the GNU Lesser General Public 018 * License along with this software; if not, write to the Free 019 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 020 * 02110-1301 USA, or see the FSF site: http://www.fsf.org. 021 */ 022 package org.jboss.dna.connector.federation.contribution; 023 024 import java.util.Iterator; 025 import net.jcip.annotations.Immutable; 026 import org.jboss.dna.graph.Location; 027 import org.jboss.dna.graph.properties.DateTime; 028 import org.jboss.dna.graph.properties.Name; 029 import org.jboss.dna.graph.properties.Property; 030 031 /** 032 * The record of a source contributing only properties to a node. 033 * 034 * @author Randall Hauch 035 */ 036 @Immutable 037 public class ThreePropertyContribution extends NonEmptyContribution { 038 039 /** 040 * This is the first version of this class. See the documentation of MergePlan.serialVersionUID. 041 */ 042 private static final long serialVersionUID = 1L; 043 044 private final Property property1; 045 private final Property property2; 046 private final Property property3; 047 048 /** 049 * Create a contribution of node properties from the source with the supplied name. 050 * 051 * @param sourceName the name of the source, which may not be null or blank 052 * @param locationInSource the location in the source for this contributed information; may not be null 053 * @param expirationTime the time (in UTC) after which this contribution should be considered expired, or null if there is no 054 * expiration time 055 * @param property1 the first property from the source; may not be null 056 * @param property2 the second property from the source; may not be null 057 * @param property3 the third property from the source; may not be null 058 */ 059 public ThreePropertyContribution( String sourceName, 060 Location locationInSource, 061 DateTime expirationTime, 062 Property property1, 063 Property property2, 064 Property property3 ) { 065 super(sourceName, locationInSource, expirationTime); 066 assert property1 != null; 067 assert property1.isEmpty() == false; 068 assert property2 != null; 069 assert property2.isEmpty() == false; 070 assert property3 != null; 071 assert property3.isEmpty() == false; 072 this.property1 = property1; 073 this.property2 = property2; 074 this.property3 = property3; 075 if (ContributionStatistics.RECORD) ContributionStatistics.record(3, 0); 076 } 077 078 /** 079 * {@inheritDoc} 080 * 081 * @see org.jboss.dna.connector.federation.contribution.Contribution#getProperties() 082 */ 083 @Override 084 public Iterator<Property> getProperties() { 085 return new ThreeValueIterator<Property>(property1, property2, property3); 086 } 087 088 /** 089 * {@inheritDoc} 090 * 091 * @see org.jboss.dna.connector.federation.contribution.Contribution#getPropertyCount() 092 */ 093 @Override 094 public int getPropertyCount() { 095 return 3; 096 } 097 098 /** 099 * {@inheritDoc} 100 * 101 * @see org.jboss.dna.connector.federation.contribution.Contribution#getProperty(org.jboss.dna.graph.properties.Name) 102 */ 103 @Override 104 public Property getProperty( Name name ) { 105 if (this.property1.getName().equals(name)) return property1; 106 if (this.property2.getName().equals(name)) return property2; 107 if (this.property3.getName().equals(name)) return property3; 108 return null; 109 } 110 111 }