package org.kuali.common.httplib.api.model;
   
   import static com.google.common.collect.Lists.newArrayList;
   import static java.util.Arrays.asList;
   import static org.kuali.common.jute.base.Precondition.checkNotNull;
   import static org.kuali.common.jute.reflect.Reflection.checkNoNulls;
   
   import java.util.List;
   import java.util.Locale;
  
  import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
  import com.google.common.collect.ImmutableList;
  
  @JsonDeserialize(builder = ResponseMetadata.Builder.class)
  public final class ResponseMetadata {
  
      private final ResponseStatus status;
      private final Protocol protocol;
      private final Locale locale; // the javadoc for Apache's HttpResponse states that locale is *never* null
      private final ImmutableList<Header> headers;
  
      private ResponseMetadata(Builder builder) {
          this.status = builder.status;
          this.locale = builder.locale;
          this.protocol = builder.protocol;
          this.headers = ImmutableList.copyOf(builder.headers);
      }
  
      public static ResponseMetadata copyOf(org.apache.http.HttpResponse mutable) {
          checkNotNull(mutable, "mutable");
          List<Header> headers = Header.copyOf(asList(mutable.getAllHeaders()));
          ResponseStatus status = ResponseStatus.build(mutable);
          Protocol protocol = Protocol.build(mutable.getProtocolVersion());
          Locale locale = mutable.getLocale();
          ResponseMetadata.Builder builder = ResponseMetadata.builder();
          builder.withStatus(status);
          builder.withProtocol(protocol);
          builder.withLocale(locale);
          builder.withHeaders(headers);
          return builder.build();
      }
  
      public static Builder builder() {
          return new Builder();
      }
  
      public static class Builder implements org.apache.commons.lang3.builder.Builder<ResponseMetadata> {
  
          private Protocol protocol;
          private ResponseStatus status;
          private Locale locale;
          private List<Header> headers = newArrayList();
  
          public Builder withHeaders(List<Header> headers) {
              this.headers = headers;
              return this;
          }
  
          public Builder withProtocol(Protocol protocol) {
              this.protocol = protocol;
              return this;
          }
  
          public Builder withStatus(ResponseStatus status) {
              this.status = status;
              return this;
          }
  
          public Builder withLocale(Locale locale) {
              this.locale = locale;
              return this;
          }
  
          @Override
          public ResponseMetadata build() {
              return checkNoNulls(new ResponseMetadata(this));
          }
  
      }
  
      public ResponseStatus getStatus() {
          return status;
      }
  
      public Locale getLocale() {
          return locale;
      }
  
      public Protocol getProtocol() {
          return protocol;
      }
  
      public List<Header> getHeaders() {
          return headers;
      }
  
  }