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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.maven.plugin.surefire.booterclient.lazytestprovider;
20  
21  import org.apache.maven.surefire.api.booter.Shutdown;
22  
23  /**
24   * Remote interface of forked JVM with command methods.
25   * <br>
26   * Implemented by {@link TestProvidingInputStream} and {@link TestLessInputStream} where the method
27   * {@link TestLessInputStream#provideNewTest()} purposefully does nothing. Some methods in
28   * {@link org.apache.maven.plugin.surefire.booterclient.lazytestprovider.TestLessInputStream.TestLessInputStreamBuilder}
29   * throw {@link UnsupportedOperationException}.
30   *
31   * @author <a href="mailto:tibordigana@apache.org">Tibor Digana (tibor17)</a>
32   * @since 2.19
33   * @see TestProvidingInputStream
34   * @see TestLessInputStream
35   */
36  public interface NotifiableTestStream {
37      /**
38       * Forked jvm notifies master process to provide a new test.
39       * <br>
40       * Notifies {@link TestProvidingInputStream} in order to dispatch a new test back to the forked
41       * jvm (particular fork which hits this call); or do nothing in {@link TestLessInputStream}.
42       */
43      void provideNewTest();
44  
45      /**
46       * Sends an event to a fork jvm in order to skip tests.
47       * Returns immediately without blocking.
48       */
49      void skipSinceNextTest();
50  
51      void shutdown(Shutdown shutdownType);
52  
53      void noop();
54  
55      void acknowledgeByeEventReceived();
56  }