View Javadoc
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.shared.utils.cli.javatool;
20  
21  /**
22   * <p>Describes a java tool, means a executable available in the jdk.</p>
23   * <p>The name of the tool ({@link #getJavaToolName()}) reflects the name of the executable that should exists as an
24   * executable in the jdk, like {@code jarsigner, keytool, javadoc, ...}.</p>
25   * <p>An abstract implementation of the {@link JavaTool} named {@link AbstractJavaTool} use the command line API to
26   * execute any user requests of this tool.</p>
27   *
28   * @author <a href="mailto:chemit@codelutin.com">Tony Chemit</a>
29   * @since 0.5
30   * @param <Request> Tool-specific request type
31   */
32  public interface JavaTool<Request extends JavaToolRequest> {
33  
34      /**
35       * <p>Return the name of the java tool. This is exactly the name (without his extension) of the executable to
36       * find in the {@code jdk/bin} directory.</p>
37       * <p>For example: {@code jarsigner, keytool, javadoc, ...}</p>
38       *
39       * @return the name of the java tool.
40       */
41      String getJavaToolName();
42  
43      /**
44       * Set an optional tool chain to find out the java tool executable location.
45       *
46       * @param toolchain optional tool chain to find out the java tool executable location.
47       * To avoid direct dependency on Maven core, this parameter is an Object that will be
48       * used as Toolchain through reflection
49       */
50      void setToolchain(Object toolchain);
51  
52      /**
53       * <p>Execute the input request and then returns the result of the execution.</p>
54       * <p>If could not create the java tool invocation, a {@link JavaToolException} will be thrown.</p>
55       * <p>If execution fails, then the result will have a none-zero {@link JavaToolResult#getExitCode()} and his
56       * {@link JavaToolResult#getExecutionException()} will be filled with the error, otherwise the exist code will be
57       * zero.</p>
58       *
59       * @param request the request to perform
60       * @return the result of the tool execution
61       * @throws JavaToolException if could not create the java tool invocation
62       */
63      JavaToolResult execute(Request request) throws JavaToolException;
64  }