Commandline arguments

src/commands/CrawlCommand.java

@@ -0,0 +1,68 @@
+package commands;
+
+import com.beust.jcommander.Parameter;
+import com.beust.jcommander.Parameters;
+import configuration.ConfigurationService;
+import configuration.CrawlerConfig;
+import main.GitHubCrawler;
+
+/**
+ * The Crawl Command executes the GitHubCrawler with the settings passed through the commandline.
+ *
+ * @author Ali Bozna
+ */
+@Parameters(separators = "=")
+public class CrawlCommand {
+    @Parameter(names = "--language", description = "")
+    private String language;
+
+    @Parameter(names = { "--stars", "--stars-decrease-amount" }, description = "",  required = true)
+    private int starDecreaseAmount;
+
+    @Parameter(names = { "--build-system", "--bs" }, description = "", required = false)
+    private String buildSystem;
+
+    /**
+     * Gets the language.
+     *
+     * @return Returns the language.
+     */
+    public String getLanguage() {
+        return this.language;
+    }
+
+    /**
+     * Gets the stars decrease amount.
+     *
+     * @return Returns the stars decrease amount.
+     */
+    public int getStarsDecreaseAmount() {
+        return this.starDecreaseAmount;
+    }
+
+    /**
+     * Gets the Build-System.
+     *
+     * @return Returns the Build-System.
+     */
+    public String getBuildSystem() {
+        return this.buildSystem;
+    }
+
+    /**
+     * Executes the GitHubCrawler with the settings passed through the commandline. Also it loads the
+     * configured Build-Systems from the configuration file.
+     */
+    public void execute() {
+        CrawlerConfig config = new CrawlerConfig();
+        config.starDecreaseAmount = this.getStarsDecreaseAmount();
+        config.buildSystem = this.getBuildSystem();
+        config.language = this.getLanguage();
+
+        // Get the Build-Systems from the configuration file.
+        config.buildSystems = new ConfigurationService().getConfig().buildSystems;
+
+        GitHubCrawler crawler = new GitHubCrawler(config);
+        crawler.run();
+    }
+}

src/configuration/BuildSystem.java

@@ -0,0 +1,34 @@
+package configuration;
+
+import java.util.List;
+
+/**
+ * Defining Build System with public name and buildFiles fields so the objects can be
+ * serialized. The end-user has the option to define custom build systems.
+ *
+ * @author Ali Bozna
+ */
+public class BuildSystem {
+    public static BuildSystem UNKOWN = new BuildSystem("UNKOWN", new String[]{});
+
+    public String name;
+    public String[] buildFiles;
+
+    private List<String> filePaths;
+
+    public BuildSystem(String name, String[] buildFiles) {
+        this.buildFiles = buildFiles;
+        this.name = name;
+    }
+
+    public BuildSystem() {
+    }
+
+    public List<String> getFilePaths() {
+        return this.filePaths;
+    }
+
+    public void setFilePaths(List<String> filePaths) {
+        this.filePaths = filePaths;
+    }
+}

src/configuration/ConfigurationService.java

@@ -0,0 +1,89 @@
+package configuration;
+
+import com.esotericsoftware.yamlbeans.YamlReader;
+import com.esotericsoftware.yamlbeans.YamlWriter;
+
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * @author Ali Bozna
+ */
+public class ConfigurationService {
+
+    public ConfigurationService() {
+    }
+
+    /**
+     * Deserializes the @see CrawlerConfig from the user path.
+     *
+     * @return Returns the @see CrawlerConfig.
+     */
+    public CrawlerConfig getConfig() {
+        Path configPath = Paths.get(System.getProperty("user.home"), "crawler", "config.yaml");
+
+        System.out.println(configPath.toFile().getAbsolutePath());
+
+        // TODO If the configuration file is empty it will still deserialize it instead of failing.
+        try(FileReader fileReader = new FileReader(configPath.toFile())) {
+            YamlReader reader = new YamlReader(fileReader);
+            CrawlerConfig config = (CrawlerConfig)reader.read();
+            reader.close();
+
+            return config;
+
+        } catch(Exception exception) {
+            System.err.println(exception.getMessage());
+        }
+
+        // If the configuration deserialization failed create overwrite the configuration with
+        // some default configuration.
+        CrawlerConfig config = new CrawlerConfig();
+        config.oauthtoken = "";
+        config.language = "CPP";
+        config.lastPushDate =  DateTimeFormatter.ofPattern("YYYY-MM-dd").format(LocalDateTime.now());
+        config.starDecreaseAmount = 1;
+        config.buildSystem = "CUSTOM";
+        config.customFile = "CHANGELOG.md";
+        config.filePath  = "shared";
+        config.buildSystems = this.getDefaultBuildSystems();
+
+        try {
+            configPath.toFile().getParentFile().mkdirs();
+        } catch (Exception exception) {
+            System.err.println(exception.getMessage());
+        }
+
+        // Save the created default configuration.
+        try(FileWriter fileWriter = new FileWriter(configPath.toFile())) {
+            YamlWriter writer = new YamlWriter(fileWriter);
+            writer.write(config);
+            writer.close();
+
+        } catch(Exception exception) {
+            System.err.println(exception.getMessage());
+        }
+
+        return config;
+    }
+
+    /**
+     * @return Returns default build-systems.
+     */
+    private List getDefaultBuildSystems() {
+        List systems = new ArrayList();
+        systems.add(new BuildSystem("CMAKE", new String[] { "CMakeLists.txt" }));
+        systems.add(new BuildSystem("AUTOTOOLS", new String[] { "configure.ac", "configure.in", "Makefile.am" }));
+        systems.add(new BuildSystem("MAKE", new String[] { "Makefile" }));
+        systems.add(new BuildSystem("CUSTOM", new String[] { "" }));
+        systems.add(BuildSystem.UNKOWN);
+
+        return systems;
+    }
+}

src/configuration/CrawlerConfig.java

@@ -0,0 +1,29 @@
+package configuration;
+
+
+import java.util.List;
+
+/**
+ * Configuration file that will be de/serialized from/to Yaml file.
+ *
+ * @author Ali Bozna
+ */
+public class CrawlerConfig {
+    public String language;
+
+    public String lastPushDate;
+
+    public int starDecreaseAmount;
+
+    public String oauthtoken;
+
+    public String filePath;
+
+    public String jsonFileName;
+
+    public String customFile;
+
+    public String buildSystem;
+
+    public List buildSystems;
+}

src/main/Config.java

@@ -6,14 +6,14 @@
 
 public class Config {
 
-    public static final String LANGUAGE = PropertyFileReader.getInstance().getProperty(EConfig.LANGUAGE);
-    public static final String LASTPUSHEDDATE = PropertyFileReader.getInstance().getProperty(EConfig.LASTPUSHEDDATE);
-    public static final String STARSDECREASEAMOUNT = PropertyFileReader.getInstance().getProperty(EConfig.STARSDECREASEAMOUNT);
-    public static final BuildSystem BUILDSYSTEM = BuildSystem.getBuildType(PropertyFileReader.getInstance().getProperty(EConfig.BUILDSYSTEM));
-    public static final String OAUTHTOKEN = PropertyFileReader.getInstance().getProperty(EConfig.OAUTHTOKEN);
-    public static final String FILEPATH = PropertyFileReader.getInstance().getProperty(EConfig.FILEPATH);
-    public static final String JSONFILENAME = "repositories.json";
-    public static final String CUSTOMFILE = PropertyFileReader.getInstance().getProperty(EConfig.CUSTOMFILE);
+    public static final String LANGUAGE = null;//PropertyFileReader.getInstance().getProperty(EConfig.LANGUAGE);
+    public static final String LASTPUSHEDDATE = null;//PropertyFileReader.getInstance().getProperty(EConfig.LASTPUSHEDDATE);
+    public static final String STARSDECREASEAMOUNT = null;//PropertyFileReader.getInstance().getProperty(EConfig.STARSDECREASEAMOUNT);
+    public static final BuildSystem BUILDSYSTEM = null;//BuildSystem.getBuildType(PropertyFileReader.getInstance().getProperty(EConfig.BUILDSYSTEM));
+    public static final String OAUTHTOKEN = null;//PropertyFileReader.getInstance().getProperty(EConfig.OAUTHTOKEN);
+    public static final String FILEPATH = null;//PropertyFileReader.getInstance().getProperty(EConfig.FILEPATH);
+    public static final String JSONFILENAME = null;//"repositories.json";
+    public static final String CUSTOMFILE = null;//PropertyFileReader.getInstance().getProperty(EConfig.CUSTOMFILE);
 
 
 }