/**
    * Copyright 2010-2014 The Kuali Foundation
    *
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
    *
   * 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.kuali.common.util.maven.model;
  
  import org.kuali.common.util.Assert;
  import org.kuali.common.util.nullify.NullUtils;
  
  import com.google.common.base.Optional;
  
  /**
   * Simple pojo representing a Maven dependency.
   */
  public final class Dependency {
  
  	private final String groupId;
  	private final String artifactId;
  	private final String version;
  	private final Optional<String> classifier;
  	// Type is usually the same thing as "packaging" from the Artifact object, but not always.
  	// For example, "test-jar" is physically packaged into a jar file but is labeled in the Maven
  	// dependency list as <type>test-jar</type>
  	private final String type;
  	private final String scope;
  
  	public String getGroupId() {
  		return groupId;
  	}
  
  	public String getArtifactId() {
  		return artifactId;
  	}
  
  	public String getVersion() {
  		return version;
  	}
  
  	public Optional<String> getClassifier() {
  		return classifier;
  	}
  
  	public String getType() {
  		return type;
  	}
  
  	public String getScope() {
  		return scope;
  	}
  
  	public static class Builder {
  
  		public static final String DEFAULT_TYPE = Artifact.Builder.DEFAULT_TYPE;
  		public static final String DEFAULT_SCOPE = "compile";
  
  		// Required
  		private final String groupId;
  		private final String artifactId;
  		private final String version;
  
  		// Optional
  		private Optional<String> classifier = Optional.absent();
  		private String type = DEFAULT_TYPE;
  		private String scope = DEFAULT_SCOPE;
  
  		public Builder(String groupId, String artifactId, String version) {
  			this.groupId = groupId;
  			this.artifactId = artifactId;
  			this.version = version;
  		}
  
  		public Builder classifier(String classifier) {
  			this.classifier = Optional.fromNullable(NullUtils.trimToNull(classifier));
  			return this;
  		}
  
  		public Builder type(String type) {
  			this.type = type;
  			return this;
  		}
  
  		public Builder scope(String scope) {
  			this.scope = scope;
  			return this;
  		}
  
  		public Dependency build() {
  			Assert.noBlanks(groupId, artifactId, version, type, scope);
 			Assert.noNulls(classifier);
 			return new Dependency(this);
 		}
 	}
 
 	private Dependency(Builder builder) {
 		this.groupId = builder.groupId;
 		this.artifactId = builder.artifactId;
 		this.version = builder.version;
 		this.classifier = builder.classifier;
 		this.type = builder.type;
 		this.scope = builder.scope;
 	}
 
 }