001    /**
002     * Copyright 2004-2013 The Kuali Foundation
003     *
004     * Licensed under the Educational Community License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     * http://www.opensource.org/licenses/ecl2.php
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    package org.apache.torque.mojo;
017    
018    import java.io.File;
019    import java.io.IOException;
020    import java.util.Collections;
021    import java.util.List;
022    
023    import org.apache.commons.io.FileUtils;
024    import org.apache.maven.plugin.AbstractMojo;
025    import org.apache.maven.plugin.MojoExecutionException;
026    import org.apache.torque.util.SimpleScanner;
027    import org.codehaus.plexus.util.StringUtils;
028    
029    /**
030     * Create a location listing file that describes resources inside of a jar file
031     *
032     * @author Jeff Caddel
033     * @goal metainf
034     */
035    public class MetaInfMojo extends AbstractMojo {
036    
037            /**
038             * Regular expression pattern for files to include
039             *
040             * @parameter expression="${metainf.include}" default-value="\*\*\/*"
041             * @required
042             */
043            private String include;
044    
045            /**
046             * Regular expression pattern for files to exclude
047             *
048             * @parameter expression="${metainf.exclude}" default-value="\*\*\/META-INF/*"
049             */
050            private String exclude;
051    
052            /**
053             * The directory to scan using the include/exclude patterns. Paths in <code>outputFile</code> are generated relative to this directory
054             *
055             * @parameter expression="${metainf.basedir}" default-value="${project.build.outputDirectory}"
056             * @required
057             */
058            private File baseDir;
059    
060            /**
061             * The file which will contain <code>classpath</code> references to the files that were located
062             *
063             * @parameter expression="${metainf.outputFile}" default-value="${project.build.outputDirectory}/META-INF/classpath.resources"
064             * @required
065             */
066            private File outputFile;
067    
068            /**
069             * The prefix to insert before the relative path name
070             *
071             * @parameter expression="${metainf.prefix}" default-value="classpath:"
072             */
073            private String prefix;
074    
075            @Override
076            public void execute() throws MojoExecutionException {
077                    try {
078                            getLog().info("Examining - " + baseDir.getCanonicalPath());
079                            getLog().info("Include - " + include);
080                            getLog().info("Exclude - " + exclude);
081                            SimpleScanner scanner = new SimpleScanner(baseDir, include, exclude);
082                            List<File> files = scanner.getFiles();
083                            getLog().info("Located " + files.size() + " files");
084                            String content = getLocations(baseDir, files, prefix);
085                            getLog().info("Creating " + outputFile.getCanonicalPath());
086                            FileUtils.writeStringToFile(outputFile, content);
087                    } catch (Exception e) {
088                            throw new MojoExecutionException("Unexpected error", e);
089                    }
090            }
091    
092            protected String getLocations(File baseDir, List<File> files, String prefix) throws IOException {
093                    Collections.sort(files);
094                    StringBuilder sb = new StringBuilder();
095                    for (int i = 0; i < files.size(); i++) {
096                            if (i != 0) {
097                                    sb.append("\n");
098                            }
099                            sb.append(getLocation(baseDir, files.get(i), prefix));
100                    }
101                    return sb.toString();
102            }
103    
104            protected String getLocation(File baseDir, File file, String prefix) throws IOException {
105                    String dir = baseDir.getCanonicalPath();
106                    String path = file.getCanonicalPath();
107                    int pos = dir.length() + 1;
108                    return prefix + StringUtils.substring(path, pos);
109            }
110    
111            public String getInclude() {
112                    return include;
113            }
114    
115            public void setInclude(String include) {
116                    this.include = include;
117            }
118    
119            public String getExclude() {
120                    return exclude;
121            }
122    
123            public void setExclude(String exclude) {
124                    this.exclude = exclude;
125            }
126    
127            public File getBaseDir() {
128                    return baseDir;
129            }
130    
131            public void setBaseDir(File baseDir) {
132                    this.baseDir = baseDir;
133            }
134    
135            public File getOutputFile() {
136                    return outputFile;
137            }
138    
139            public void setOutputFile(File outputFile) {
140                    this.outputFile = outputFile;
141            }
142    
143            public String getPrefix() {
144                    return prefix;
145            }
146    
147            public void setPrefix(String prefix) {
148                    this.prefix = prefix;
149            }
150    
151    }