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.util.ArrayList;
  import java.util.Collection;
  import java.util.Collections;
  import java.util.LinkedHashMap;
  import java.util.List;
  import java.util.Map;
  
  /**
   *
   * @author tkunicki
   */
  public class AlgorithmDescriptor extends Descriptor {
  
      private final String version;
      private final boolean storeSupported;
      private final boolean statusSupported;
      private final Map<String, InputDescriptor> inputDescriptorMap;
      private final Map<String, OutputDescriptor> outputDescriptorMap;
  
  	AlgorithmDescriptor(Builder<? extends Builder<?>> builder) {
          super(builder);
          this.version = builder.version;
          this.storeSupported = builder.storeSupported;
          this.statusSupported = builder.statusSupported;
  
          Preconditions.checkState(
                  builder.outputDescriptors.size() > 0,
                  "Need at minimum 1 output for algorithm.");
          
          // LinkedHaskMap to preserve order
          Map<String, InputDescriptor> iMap = new LinkedHashMap<String, InputDescriptor>();
          for (InputDescriptor iDescriptor : builder.inputDescriptors) {
              iMap.put(iDescriptor.getIdentifier(), iDescriptor);
          }
          inputDescriptorMap = Collections.unmodifiableMap(iMap);
  
          Map<String, OutputDescriptor> oMap = new LinkedHashMap<String, OutputDescriptor>();
          for (OutputDescriptor oDescriptor : builder.outputDescriptors) {
              oMap.put(oDescriptor.getIdentifier(), oDescriptor);
          }
          outputDescriptorMap = Collections.unmodifiableMap(oMap);
      }
  
      public String getVersion() {
          return version;
      }
  
      public boolean getStoreSupported() {
          return storeSupported;
      }
  
      public boolean getStatusSupported() {
          return statusSupported;
      }
  
      public List<String> getInputIdentifiers() {
          return Collections.unmodifiableList(new ArrayList<String>(inputDescriptorMap.keySet()));
      }
  
      public InputDescriptor getInputDescriptor(String identifier) {
          return inputDescriptorMap.get(identifier);
      }
  
      public Collection<InputDescriptor> getInputDescriptors() {
          return inputDescriptorMap.values();
      }
  
      public List<String> getOutputIdentifiers() {
          return Collections.unmodifiableList(new ArrayList<String>(outputDescriptorMap.keySet()));
      }
  
      public OutputDescriptor getOutputDescriptor(String identifier) {
          return outputDescriptorMap.get(identifier);
      }
  
      public Collection<OutputDescriptor> getOutputDescriptors() {
          return outputDescriptorMap.values();
      }
  
      public static Builder<?> builder(String identifier) {
          return new BuilderTyped(identifier);
      }
  
      public static Builder<?> builder(Class<?> clazz) {
          Preconditions.checkNotNull(clazz, "clazz may not be null");
          return new BuilderTyped(clazz.getCanonicalName());
      }
  
      private static class BuilderTyped extends Builder<BuilderTyped> {
          public BuilderTyped(String identifier) {
              super(identifier);
          }
          @Override
          protected BuilderTyped self() {
              return this;
          }
      }
  
      public static abstract class Builder<B extends Builder<B>> extends Descriptor.Builder<B>{
  
          private String version = "1.0.0";
          private boolean storeSupported = true;
          private boolean statusSupported = true;
          private List<InputDescriptor> inputDescriptors;
          private List<OutputDescriptor> outputDescriptors;
  
          protected Builder(String identifier) {
              super(identifier);
              title(identifier);
              inputDescriptors = new ArrayList<InputDescriptor>();
              outputDescriptors = new ArrayList<OutputDescriptor>();
          }
  
          public B version(String version) {
              this.version = version;
              return self();
          }
  
          public B storeSupported(boolean storeSupported) {
              this.storeSupported = storeSupported;
              return self();
          }
  
          public B statusSupported(boolean statusSupported) {
              this.statusSupported = statusSupported;
              return self();
          }
  
          public B addInputDescriptor(InputDescriptor.Builder inputDescriptorBuilder) {
              return addInputDescriptor(inputDescriptorBuilder.build());
          }
  
          public B addInputDescriptor(InputDescriptor inputDescriptor) {
              this.inputDescriptors.add(inputDescriptor);
              return self();
          }
  
          public B addInputDescriptors(List<? extends InputDescriptor> inputDescriptors) {
              this.inputDescriptors.addAll(inputDescriptors);
              return self();
          }
  
          public B addOutputDescriptor(OutputDescriptor.Builder outputDescriptorBuilder) {
              return addOutputDescriptor(outputDescriptorBuilder.build());
          }
  
          public B addOutputDescriptor(OutputDescriptor outputDescriptor) {
              this.outputDescriptors.add(outputDescriptor);
              return self();
          }
  
          public B addOutputDescriptors(List<? extends OutputDescriptor> outputDescriptors) {
              this.outputDescriptors.addAll(outputDescriptors);
              return self();
          }
          
          public AlgorithmDescriptor build() {
              return new AlgorithmDescriptor(this);
          }
  
      }
      
  }
  