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;
  import java.math.BigInteger;
  import org.n52.wps.io.data.IData;
  
  /**
   *
   * @author tkunicki
   */
  public abstract class InputDescriptor<T extends Class<? extends IData>> extends BoundDescriptor<T> {
  
  	private final BigInteger minOccurs;
  	private final BigInteger maxOccurs;
  
  	protected InputDescriptor(Builder<? extends Builder<?,T>, T> builder) {
          super(builder);
  		this.minOccurs = builder.minOccurs;
  		this.maxOccurs = builder.maxOccurs;
          Preconditions.checkState(maxOccurs.longValue() >= minOccurs.longValue(), "maxOccurs must be >= minOccurs");
      }
  
      public BigInteger getMinOccurs() {
          return minOccurs;
      }
  
      public BigInteger getMaxOccurs() {
          return maxOccurs;
      }
  
      public static abstract class Builder<B extends Builder<B,T>, T extends Class<? extends IData>> extends BoundDescriptor.Builder<B,T>{
  
          private BigInteger minOccurs = BigInteger.ONE;
          private BigInteger maxOccurs = BigInteger.ONE;
  
          protected Builder(String identifier, T binding) {
              super(identifier, binding);
          }
  
          public B minOccurs(int minOccurs) {
              return minOccurs(BigInteger.valueOf(minOccurs));
          }
  
          public B minOccurs(BigInteger minOccurs) {
              Preconditions.checkArgument(minOccurs.longValue() >= 0, "minOccurs must be >= 0");
              this.minOccurs = minOccurs;
              return self();
          }
  
          public B maxOccurs(int maxOccurs) {
              return maxOccurs(BigInteger.valueOf(maxOccurs));
          }
  
          public B maxOccurs(BigInteger maxOccurs) {
              Preconditions.checkArgument(maxOccurs.longValue() > 0, "maxOccurs must be > 0");
              this.maxOccurs = maxOccurs;
              return self();
          }
  
          public <E extends Enum<E>> B maxOccurs(Class<E> enumType) {
              return maxOccurs(enumType.getEnumConstants().length);
          }
  
          public abstract InputDescriptor<T> build();
      }
  }
  