code: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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.apache.skywalking.oap.server.core.analysis.metrics.expression;
  
  import java.util.Objects;
  import org.apache.skywalking.oap.server.core.analysis.metrics.annotation.FilterMatcher;
  
  @FilterMatcher("stringMatch")
  public class StringMatch {
  
      public boolean match(String left, String right) {
          if (left != null && left.startsWith("\"") && left.endsWith("\"")) {
              left = left.substring(1, left.length() - 1);
          }
  
          if (right != null && right.startsWith("\"") && right.endsWith("\"")) {
              right = right.substring(1, right.length() - 1);
          }
  
          return Objects.equals(left, right);
      }
  
      public boolean match(Object left, Object right) {
          return Objects.equals(left, right);
      }
  }
  