/* Generated By:JJTree: Do not edit this line. OInstanceofCondition.java Version 4.3 */
/* JavaCCOptions:MULTI=true,NODE_USES_PARSER=false,VISITOR=true,TRACK_TOKENS=true,NODE_PREFIX=O,NODE_EXTENDS=,NODE_FACTORY=,SUPPORT_CLASS_VISIBILITY_PUBLIC=true */
package com.orientechnologies.orient.core.sql.parser;

import com.orientechnologies.orient.core.command.OCommandContext;
import com.orientechnologies.orient.core.db.record.OIdentifiable;
import com.orientechnologies.orient.core.metadata.schema.OClass;
import com.orientechnologies.orient.core.record.ORecord;
import com.orientechnologies.orient.core.record.impl.ODocument;
import com.orientechnologies.orient.core.serialization.serializer.OStringSerializerHelper;

import java.util.Collections;
import java.util.List;
import java.util.Map;

public class OInstanceofCondition extends OBooleanExpression{

  protected OExpression left;
  protected OIdentifier right;
  protected String      rightString;

  public OInstanceofCondition(int id) {
    super(id);
  }

  public OInstanceofCondition(OrientSql p, int id) {
    super(p, id);
  }

  /**
   * Accept the visitor.
   **/
  public Object jjtAccept(OrientSqlVisitor visitor, Object data) {
    return visitor.visit(this, data);
  }

  @Override public boolean evaluate(OIdentifiable currentRecord, OCommandContext ctx) {
    if (currentRecord == null) {
      return false;
    }
    ORecord record = currentRecord.getRecord();
    if (record == null) {
      return false;
    }
    if (!(record instanceof ODocument)) {
      return false;
    }
    ODocument doc = (ODocument) record;
    OClass clazz = doc.getSchemaClass();
    if (clazz == null) {
      return false;
    }
    if (right != null) {
      return clazz.isSubClassOf(right.getStringValue());
    } else if (rightString != null) {
      return clazz.isSubClassOf(decode(rightString));
    }
    return false;
  }

  private String decode(String rightString) {
    if(rightString==null){
      return null;
    }
    return OStringSerializerHelper.decode(rightString.substring(1, rightString.length()-1));
  }

  public void toString(Map<Object, Object> params, StringBuilder builder) {
    left.toString(params, builder);
    builder.append(" instanceof ");
    if (right != null) {
      right.toString(params, builder);
    } else if (rightString != null) {
      builder.append(rightString);
    }
  }

  @Override public boolean supportsBasicCalculation() {
    return left.supportsBasicCalculation();
  }

  @Override protected int getNumberOfExternalCalculations() {
    if (!left.supportsBasicCalculation()) {
      return 1;
    }
    return 0;
  }

  @Override protected List<Object> getExternalCalculationConditions() {
    if (!left.supportsBasicCalculation()) {
      return (List) Collections.singletonList(left);
    }
    return Collections.EMPTY_LIST;
  }

  @Override public List<String> getMatchPatternInvolvedAliases() {
    return left == null ? null : left.getMatchPatternInvolvedAliases();
  }
}
/* JavaCC - OriginalChecksum=0b5eb529744f307228faa6b26f0592dc (do not edit this line) */