// Copyright 2012,2013 Vaughn Vernon
//
// 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 com.saasovation.agilepm.domain.model.product;
import com.saasovation.agilepm.domain.model.ValueObject;
import com.saasovation.agilepm.domain.model.discussion.DiscussionAvailability;
import com.saasovation.agilepm.domain.model.discussion.DiscussionDescriptor;
public final class ProductDiscussion extends ValueObject {
private DiscussionAvailability availability;
private DiscussionDescriptor descriptor;
public static ProductDiscussion fromAvailability(
DiscussionAvailability anAvailability) {
if (anAvailability.isReady()) {
throw new IllegalArgumentException("Cannot be created ready.");
}
DiscussionDescriptor descriptor =
new DiscussionDescriptor(DiscussionDescriptor.UNDEFINED_ID);
return new ProductDiscussion(descriptor, anAvailability);
}
public ProductDiscussion(
DiscussionDescriptor aDescriptor,
DiscussionAvailability anAvailability) {
super();
this.setAvailability(anAvailability);
this.setDescriptor(aDescriptor);
}
public ProductDiscussion(ProductDiscussion aProductDiscussion) {
this(aProductDiscussion.descriptor(), aProductDiscussion.availability());
}
public DiscussionAvailability availability() {
return this.availability;
}
public DiscussionDescriptor descriptor() {
return this.descriptor;
}
public ProductDiscussion nowReady(DiscussionDescriptor aDescriptor) {
if (aDescriptor == null || aDescriptor.isUndefined()) {
throw new IllegalStateException("The discussion descriptor must be defined.");
}
if (!this.availability().isRequested()) {
throw new IllegalStateException("The discussion must be requested first.");
}
return new ProductDiscussion(aDescriptor, DiscussionAvailability.READY);
}
private void setAvailability(DiscussionAvailability anAvailability) {
this.assertArgumentNotNull(anAvailability, "The availability must be provided.");
this.availability = anAvailability;
}
private void setDescriptor(DiscussionDescriptor aDescriptor) {
this.assertArgumentNotNull(aDescriptor, "The descriptor must be provided.");
this.descriptor = aDescriptor;
}
}