1 /*

     2  * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 import java.io.IOException;

    25 import java.util.ArrayList;

    26 import java.util.Collection;

    27 import java.util.List;

    28 import java.util.stream.IntStream;

    29 

    30 import static java.util.stream.Collectors.toList;

    31 

    32 /**

    33  * Source code template container. Contains methods for inserting one template inside another one and for generating

    34  * final sources replacing placeholder by language construction.

    35  */

    36 public class Container {

    37 

    38     private static final String TEMPLATE_LEVEL = "#LEVEL";

    39     private static final String SUB_TEMPLATE = "#SUB_TEMPLATE";

    40 

    41     private String template;

    42     private int level;

    43 

    44     Container(String template) {

    45         this.template = template;

    46     }

    47 

    48     public String getTemplate() {

    49         return template;

    50     }

    51 

    52     public Container insert(Container container) {

    53         template = template.replace(SUB_TEMPLATE, container.getTemplate());

    54         template = template.replaceAll(TEMPLATE_LEVEL, String.valueOf(level++));

    55         return this;

    56     }

    57 

    58     public List<TestCase> generate(Construction... constructions) throws IOException {

    59         List<TestCase> testCases = new ArrayList<>();

    60         String template = getTemplate();

    61 

    62         int lineNumberOffset = template.substring(0, template.indexOf(SUB_TEMPLATE)).split("\n").length - 1;

    63         for (Construction c : constructions) {

    64             String src = template.replace(SUB_TEMPLATE, c.getSource());

    65             Collection<Integer> significantLines = IntStream.of(c.getExpectedLines())

    66                     .mapToObj(line -> lineNumberOffset + line)

    67                     .collect(toList());

    68             testCases.add(new TestCase(src, significantLines, c.name()));

    69         }

    70         return testCases;

    71     }

    72 

    73     public interface Construction {

    74         String getSource();

    75 

    76         int[] getExpectedLines();

    77 

    78         String name();

    79     }

    80 }