| /* |
| * Copyright 2011 Marc Grue. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or |
| * implied. |
| * |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.qi4j.sample.dcicargo.sample_b.data.structure.itinerary; |
| |
| import java.text.SimpleDateFormat; |
| import java.util.Date; |
| import java.util.List; |
| import org.joda.time.Days; |
| import org.joda.time.LocalDate; |
| import org.qi4j.api.mixin.Mixins; |
| import org.qi4j.api.property.Property; |
| import org.qi4j.api.value.ValueComposite; |
| import org.qi4j.library.constraints.annotation.NotEmpty; |
| |
| /** |
| * Itinerary |
| * |
| * Describes a planned route for a Cargo. |
| * |
| * The Itinerary has a list of Legs each describing expected loading onto/ unloading from |
| * voyages at different locations. The list of legs is mandatory, immutable and can't be empty. |
| */ |
| @Mixins( Itinerary.Mixin.class ) |
| public interface Itinerary |
| extends ValueComposite |
| { |
| @NotEmpty |
| Property<List<Leg>> legs(); |
| |
| // Side-effects free and UI agnostic convenience methods |
| Leg firstLeg(); |
| |
| Leg leg( Integer current ); |
| |
| Leg lastLeg(); |
| |
| Date eta(); |
| |
| int days(); |
| |
| String print(); |
| |
| public abstract class Mixin |
| implements Itinerary |
| { |
| public Leg firstLeg() |
| { |
| return legs().get().get( 0 ); |
| } |
| |
| public Leg leg( Integer index ) |
| { |
| if( index < 0 || index + 1 > legs().get().size() ) |
| { |
| return null; |
| } |
| |
| return legs().get().get( index ); |
| } |
| |
| public Leg lastLeg() |
| { |
| return legs().get().get( legs().get().size() - 1 ); |
| } |
| |
| public Date eta() |
| { |
| return lastLeg().unloadTime().get(); |
| } |
| |
| public int days() |
| { |
| Date dep = firstLeg().loadTime().get(); |
| Date arr = lastLeg().unloadTime().get(); |
| return Days.daysBetween( new LocalDate( dep ), new LocalDate( arr ) ).getDays(); |
| } |
| |
| public String print() |
| { |
| StringBuilder sb = new StringBuilder( "\nITINERARY -----------------------------------------------------" ); |
| for( int i = 0; i < legs().get().size(); i++ ) |
| { |
| printLeg( i, sb, legs().get().get( i ) ); |
| } |
| return sb.append( "\n---------------------------------------------------------------\n" ).toString(); |
| } |
| |
| private void printLeg( int i, StringBuilder sb, Leg leg ) |
| { |
| sb.append( "\n Leg " ).append( i ); |
| sb.append( " Load " ); |
| sb.append( new SimpleDateFormat( "yyyy-MM-dd" ).format( leg.loadTime().get() ) ); |
| sb.append( " " ).append( leg.loadLocation().get() ); |
| sb.append( " " ).append( leg.voyage().get() ); |
| sb.append( " Unload " ); |
| sb.append( new SimpleDateFormat( "yyyy-MM-dd" ).format( leg.unloadTime().get() ) ); |
| sb.append( " " ).append( leg.unloadLocation().get() ); |
| } |
| } |
| } |