org.infinispan.protostream.descriptors.AnnotationElement Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of infinispan-remote
Infinispan Remote Client All-in-One module
There is a newer version: 9.1.7.Final
package org.infinispan.protostream.descriptors;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

/**
 * @author [email protected]
 * @since 2.0
 */
public abstract class AnnotationElement {

   public static final long UNKNOWN_POSITION = 0;

   private static final long LINESHIFT = 32;

   private static final long COLUMNMASK = (1L << LINESHIFT) - 1;

   public final long position;

   public static int line(long pos) {
      return (int) (pos >>> LINESHIFT);
   }

   public static int column(long pos) {
      return (int) (pos & COLUMNMASK);
   }

   public static long makePosition(int line, int column) {
      return ((long) line << LINESHIFT) + column;
   }

   public static String positionToString(long pos) {
      return line(pos) + "," + column(pos);
   }

   protected AnnotationElement(long position) {
      this.position = position;
   }

   public static abstract class Value extends AnnotationElement {

      protected Value(long pos) {
         super(pos);
      }

      public abstract Object getValue();
   }

   public static final class Annotation extends Value {

      /**
       * Name of default attribute.
       */
      public static final String DEFAULT_ATTRIBUTE = "value";

      private final String name;

      private final Map attributes;

      public Annotation(long pos, String name, Map attributes) {
         super(pos);
         this.name = name;
         this.attributes = attributes;
      }

      public String getName() {
         return name;
      }

      public Map getAttributes() {
         return attributes;
      }

      @Override
      public Annotation getValue() {
         return this;
      }

      public Value getDefaultAttributeValue() {
         return getAttributeValue(DEFAULT_ATTRIBUTE);
      }

      public Value getAttributeValue(String attributeName) {
         Attribute attribute = attributes.get(attributeName);
         if (attribute == null) {
            throw new IllegalStateException("Attribute " + attributeName + " of annotation " + name + " is missing");
         }
         return attribute.value;
      }

      public void acceptVisitor(Visitor visitor) {
         visitor.visit(this);
      }
   }

   public static final class Attribute extends AnnotationElement {

      private final String name;

      private final Value value;

      public Attribute(long pos, String name, Value value) {
         super(pos);
         this.name = name;
         this.value = value;
      }

      public String getName() {
         return name;
      }

      public Value getValue() {
         return value;
      }

      public void acceptVisitor(Visitor visitor) {
         visitor.visit(this);
      }
   }

   public static final class Identifier extends Value {

      private final String identifier;

      public Identifier(long pos, String identifier) {
         super(pos);
         this.identifier = identifier;
      }

      public String getIdentifier() {
         return identifier;
      }

      @Override
      public String getValue() {
         return identifier;
      }

      public void acceptVisitor(Visitor visitor) {
         visitor.visit(this);
      }
   }

   public static final class Array extends Value {

      private final List values;

      public Array(long pos, List values) {
         super(pos);
         this.values = values;
      }

      public List getValues() {
         return values;
      }

      @Override
      public List