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MongoDBVisitor.java
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45 lines (35 loc) · 1.41 KB
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package sqlancer.mongodb.visitor;
import java.util.List;
import org.bson.conversions.Bson;
import sqlancer.common.ast.newast.Node;
import sqlancer.mongodb.ast.MongoDBConstant;
import sqlancer.mongodb.ast.MongoDBExpression;
import sqlancer.mongodb.ast.MongoDBSelect;
public abstract class MongoDBVisitor {
public abstract void visit(MongoDBConstant c);
public abstract void visit(MongoDBSelect<MongoDBExpression> s);
public void visit(Node<MongoDBExpression> expr) {
if (expr instanceof MongoDBConstant) {
visit((MongoDBConstant) expr);
} else if (expr instanceof MongoDBSelect) {
visit((MongoDBSelect<MongoDBExpression>) expr);
} else {
throw new AssertionError(expr.getClass());
}
}
public static List<Bson> asQuery(Node<MongoDBExpression> expr) {
MongoDBToQueryVisitor visitor = new MongoDBToQueryVisitor();
visitor.visit(expr);
return visitor.getPipeline();
}
public static String asStringLog(Node<MongoDBExpression> expr) {
MongoDBToLogVisitor visitor = new MongoDBToLogVisitor();
visitor.visit(expr);
return visitor.getStringLog();
}
public static Node<MongoDBExpression> cleanNegations(Node<MongoDBExpression> expr) {
MongoDBNegateVisitor visitor = new MongoDBNegateVisitor(false);
visitor.visit(expr);
return visitor.getNegatedExpression();
}
}