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1   /*
2    * #%L
3    * wcm.io
4    * %%
5    * Copyright (C) 2014 wcm.io
6    * %%
7    * Licensed under the Apache License, Version 2.0 (the "License");
8    * you may not use this file except in compliance with the License.
9    * You may obtain a copy of the License at
10   *
11   *      http://www.apache.org/licenses/LICENSE-2.0
12   *
13   * Unless required by applicable law or agreed to in writing, software
14   * distributed under the License is distributed on an "AS IS" BASIS,
15   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16   * See the License for the specific language governing permissions and
17   * limitations under the License.
18   * #L%
19   */
20  package io.wcm.handler.url.suffix.impl;
21  
22  import java.util.function.Predicate;
23  
24  /**
25   * Filter that discards all resource-suffix-parts and only keeps specific key-value-parts
26   */
27  public class IncludeNamedPartsFilter implements Predicate<String> {
28  
29    private final String[] keysToKeep;
30  
31    /**
32     * @param keysToKeep Keys to keep
33     */
34    public IncludeNamedPartsFilter(String... keysToKeep) {
35      this.keysToKeep = keysToKeep;
36    }
37  
38    @Override
39    public boolean test(String suffixPart) {
40      for (String key : keysToKeep) {
41        if (suffixPart.startsWith(key + UrlSuffixUtil.KEY_VALUE_DELIMITER)) {
42          return true;
43        }
44      }
45      return false;
46    }
47  
48  }