1 package org.apache.maven.surefire.api.booter;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import static java.util.Objects.requireNonNull;
23
24 /**
25 * Commands which are sent from plugin to the forked jvm.
26 *
27 * @author <a href="mailto:tibordigana@apache.org">Tibor Digana (tibor17)</a>
28 * @since 2.19
29 */
30 public enum MasterProcessCommand
31 {
32 RUN_CLASS( String.class ),
33 TEST_SET_FINISHED( Void.class ),
34 SKIP_SINCE_NEXT_TEST( Void.class ),
35 SHUTDOWN( String.class ),
36
37 /** To tell a forked process that the master process is still alive. Repeated after 10 seconds. */
38 NOOP( Void.class ),
39 BYE_ACK( Void.class );
40
41 public static final String MAGIC_NUMBER = "maven-surefire-command";
42
43 private final Class<?> dataType;
44
45 MasterProcessCommand( Class<?> dataType )
46 {
47 this.dataType = requireNonNull( dataType, "dataType cannot be null" );
48 }
49
50 public Class<?> getDataType()
51 {
52 return dataType;
53 }
54
55 public boolean hasDataType()
56 {
57 return dataType != Void.class;
58 }
59 }