content: /**
   * ﻿Copyright (C) 2007 - 2019 52°North Initiative for Geospatial Open Source
   * Software GmbH
   *
   * 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.n52.wps.algorithm.descriptor;
  
  import com.google.common.base.Preconditions;
  
  /**
   *
   * @author tkunicki
   */
  public abstract class Descriptor {
  
      private final String identifier;
      private final String title;
      private final String abstrakt; // want 'abstract' but it's a java keyword
  
  	Descriptor(Builder<? extends Builder<?>> builder) {
          this.identifier = builder.identifier;
          this.title = builder.title;
          this.abstrakt = builder.abstrakt;
      }
  
      public String getIdentifier() {
          return identifier;
      }
  
      public boolean hasTitle() {
          return title != null && title.length() > 0;
      }
  
      public String getTitle() {
          return title;
      }
  
      public boolean hasAbstract() {
          return abstrakt != null && abstrakt.length() > 0;
      }
  
      public String getAbstract() {
          return abstrakt;
      }
  
      public static abstract class Builder<B extends Builder<B>> {
  
          private final String identifier;
          private String title;
          private String abstrakt; // want 'abstract' but it's a java keyword
  
          public Builder(String identifier) {
              Preconditions.checkArgument(
                      !(identifier == null || identifier.isEmpty()),
                      "identifier may not be null or an empty String");
              this.identifier = identifier;
          }
  
          public B title(String title) {
              this.title = title;
              return self();
          }
  
          // want 'abstract' but it's a java keyword
          public B abstrakt(String abstrakt) {
              this.abstrakt = abstrakt;
              return self();
          }
  
          protected abstract B self();
      }
  }
  