001package ball.util.ant.taskdefs;
002/*-
003 * ##########################################################################
004 * Utilities
005 * $Id: PatternTask.java 7419 2021-02-01 21:26:40Z ball $
006 * $HeadURL: svn+ssh://svn.hcf.dev/var/spool/scm/repository.svn/ball-util/trunk/src/main/java/ball/util/ant/taskdefs/PatternTask.java $
007 * %%
008 * Copyright (C) 2008 - 2021 Allen D. Ball
009 * %%
010 * Licensed under the Apache License, Version 2.0 (the "License");
011 * you may not use this file except in compliance with the License.
012 * You may obtain a copy of the License at
013 *
014 *      http://www.apache.org/licenses/LICENSE-2.0
015 *
016 * Unless required by applicable law or agreed to in writing, software
017 * distributed under the License is distributed on an "AS IS" BASIS,
018 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
019 * See the License for the specific language governing permissions and
020 * limitations under the License.
021 * ##########################################################################
022 */
023import ball.swing.table.SimpleTableModel;
024import java.util.Collections;
025import java.util.regex.Matcher;
026import java.util.regex.Pattern;
027import java.util.regex.PatternSyntaxException;
028import lombok.Getter;
029import lombok.NoArgsConstructor;
030import lombok.Setter;
031import lombok.ToString;
032import lombok.experimental.Accessors;
033import org.apache.tools.ant.BuildException;
034import org.apache.tools.ant.Project;
035import org.apache.tools.ant.Task;
036import org.apache.tools.ant.util.ClasspathUtils;
037
038import static lombok.AccessLevel.PROTECTED;
039import static org.apache.commons.lang3.StringUtils.EMPTY;
040import static org.apache.commons.lang3.StringUtils.SPACE;
041
042/**
043 * Abstract {@link.uri http://ant.apache.org/ Ant} {@link Task} base class
044 * for {@link Pattern}-specific tasks.
045 *
046 * {@ant.task}
047 *
048 * @author {@link.uri mailto:ball@hcf.dev Allen D. Ball}
049 * @version $Revision: 7419 $
050 */
051@NoArgsConstructor(access = PROTECTED)
052public abstract class PatternTask extends Task
053                                  implements AnnotatedAntTask,
054                                             ClasspathDelegateAntTask,
055                                             ConfigurableAntTask {
056    @Getter @Setter @Accessors(chain = true, fluent = true)
057    private ClasspathUtils.Delegate delegate = null;
058    @NotNull @Getter @Setter
059    private String pattern = null;
060    @NotNull @Getter @Setter
061    private String input = null;
062
063    @Override
064    public void init() throws BuildException {
065        super.init();
066        ClasspathDelegateAntTask.super.init();
067        ConfigurableAntTask.super.init();
068    }
069
070    @Override
071    public void execute() throws BuildException {
072        super.execute();
073        AnnotatedAntTask.super.execute();
074    }
075
076    /**
077     * {@link Pattern} {@link Matcher#matches()} {@link Task}.
078     *
079     * {@ant.task}
080     */
081    @NoArgsConstructor @ToString
082    @AntTask("pattern-matches")
083    public static class Matches extends PatternTask {
084        @Override
085        public void execute() throws BuildException {
086            super.execute();
087
088            try {
089                SimpleTableModel table =
090                    new SimpleTableModel(new Object[][] { }, 2);
091                Pattern pattern = Pattern.compile(getPattern());
092
093                table.row(EMPTY, String.valueOf(pattern));
094
095                String input = getInput();
096
097                table.row(EMPTY, String.valueOf(input));
098
099                Matcher matcher = pattern.matcher(input);
100                boolean matches = matcher.matches();
101
102                table.row(EMPTY, String.valueOf(matches));
103
104                if (matches) {
105                    for (int i = 0, n = matcher.groupCount(); i <= n; i += 1) {
106                        table.row(String.valueOf(i),
107                                  tab(matcher.start(i)) + matcher.group(i));
108                    }
109                }
110
111                log(table);
112            } catch (PatternSyntaxException exception) {
113                log(exception.getMessage(), Project.MSG_ERR);
114                throw new BuildException();
115            } catch (BuildException exception) {
116                throw exception;
117            } catch (RuntimeException exception) {
118                throw exception;
119            } catch (Exception exception) {
120                throw new BuildException(exception);
121            }
122        }
123
124        private String tab(int count) {
125            return String.join(EMPTY, Collections.nCopies(count, SPACE));
126        }
127    }
128
129    /**
130     * {@link Pattern#split(CharSequence)} {@link Task}.
131     *
132     * {@ant.task}
133     */
134    @NoArgsConstructor @ToString
135    @AntTask("pattern-split")
136    public static class Split extends PatternTask {
137        @Override
138        public void execute() throws BuildException {
139            super.execute();
140
141            try {
142                SimpleTableModel table =
143                    new SimpleTableModel(new Object[][] { }, 2);
144                Pattern pattern = Pattern.compile(getPattern());
145
146                table.row(EMPTY, String.valueOf(pattern));
147
148                String input = getInput();
149
150                table.row(EMPTY, String.valueOf(input));
151
152                String[] strings = pattern.split(input);
153
154                for (int i = 0; i < strings.length; i += 1) {
155                    table.row(String.valueOf(i), strings[i]);
156                }
157
158                log(table);
159            } catch (PatternSyntaxException exception) {
160                log(exception.getMessage(), Project.MSG_ERR);
161                throw new BuildException();
162            } catch (BuildException exception) {
163                throw exception;
164            } catch (RuntimeException exception) {
165                throw exception;
166            } catch (Exception exception) {
167                throw new BuildException(exception);
168            }
169        }
170    }
171}