Step 1: add the new files

src/main/java/com/godaddy/sonar/ruby/metricfu/CaneCommentViolation.java

@@ -0,0 +1,40 @@
+package com.godaddy.sonar.ruby.metricfu;
+
+public class CaneCommentViolation extends CaneViolation {
+    private int line;
+    private String className;
+
+    public CaneCommentViolation(String file, int line, String className) {
+        super(file);
+        this.line = line;
+        this.className = className;
+    }
+
+    public CaneCommentViolation() {
+    }
+
+    public String getKey() {
+    	return "CommentViolation";
+    }
+
+    public int getLine() {
+        return line;
+    }
+
+    public void setLine(int line) {
+        this.line = line;
+    }
+
+    public String getClassName() {
+        return className;
+    }
+
+    public void setClassName(String className) {
+        this.className = className;
+    }
+
+    @Override
+    public String toString() {
+        return "file: " + getFile() + " line: " + line + " class: " + className;
+    }
+}

src/main/java/com/godaddy/sonar/ruby/metricfu/CaneComplexityViolation.java

@@ -0,0 +1,40 @@
+package com.godaddy.sonar.ruby.metricfu;
+
+public class CaneComplexityViolation extends CaneViolation {
+    private String method;
+    private int complexity;
+
+    public CaneComplexityViolation(String file, String method, int complexity) {
+        super(file);
+        this.method = method;
+        this.complexity = complexity;
+    }
+
+    public CaneComplexityViolation() {
+    }
+
+    public String getKey() {
+    	return "ComplexityViolation";
+    }
+
+    public String getMethod() {
+        return method;
+    }
+
+    public void setMethod(String method) {
+        this.method = method;
+    }
+
+    public int getComplexity() {
+        return complexity;
+    }
+
+    public void setComplexity(int complexity) {
+        this.complexity = complexity;
+    }
+
+    @Override
+    public String toString() {
+        return "file: " + getFile() + " line: " + complexity + " method: " + method;
+    }
+}

src/main/java/com/godaddy/sonar/ruby/metricfu/CaneLineStyleViolation.java

@@ -0,0 +1,49 @@
+package com.godaddy.sonar.ruby.metricfu;
+
+public class CaneLineStyleViolation extends CaneViolation {
+    private int line;
+    private String description;
+    private String key = "UnknownViolation";
+
+    public CaneLineStyleViolation(String file, int line, String description) {
+        super(file);
+        setLine(line);
+        setDescription(description);
+    }
+
+    public CaneLineStyleViolation() {
+    }
+
+    public String getKey() {
+    	return key;
+    }
+
+    public int getLine() {
+        return line;
+    }
+
+    public void setLine(int line) {
+        this.line = line;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public void setDescription(String description) {
+        this.description = description;
+
+        if (description.contains("tabs")) {
+        	key = "LineStyleTabsViolation";
+        } else if (description.contains("whitespace")) {
+        	key = "LineStyleWhitespaceViolation";
+        } else if (description.contains("characters")) {
+        	key = "LineStyleLengthViolation";
+        }
+    }
+
+    @Override
+    public String toString() {
+        return "file: " + getFile() + " line: " + line + " description: " + description;
+    }
+}

src/main/java/com/godaddy/sonar/ruby/metricfu/CaneRulesRepository.java

@@ -0,0 +1,31 @@
+package com.godaddy.sonar.ruby.metricfu;
+
+import org.apache.commons.io.IOUtils;
+import org.sonar.api.rules.Rule;
+import org.sonar.api.rules.RuleRepository;
+import org.sonar.api.rules.XMLRuleParser;
+
+import com.godaddy.sonar.ruby.RubyPlugin;
+import com.godaddy.sonar.ruby.core.Ruby;
+
+import java.io.InputStream;
+import java.util.List;
+
+public class CaneRulesRepository extends RuleRepository {
+	public CaneRulesRepository() {
+		super(RubyPlugin.KEY_REPOSITORY_CANE, Ruby.KEY);
+		setName(RubyPlugin.NAME_REPOSITORY_CANE);
+	}
+
+
+	@Override
+	public List<Rule> createRules() {
+		XMLRuleParser parser = new XMLRuleParser();
+		InputStream input = CaneRulesRepository.class.getResourceAsStream("/com/godaddy/sonar/ruby/metricfu/CaneRulesRepository.xml");
+		try {
+			return parser.parse(input);
+		} finally {
+			IOUtils.closeQuietly(input);
+		}
+	}
+}

src/main/java/com/godaddy/sonar/ruby/metricfu/CaneRulesRepository.xml

@@ -0,0 +1,62 @@
+<rules>
+  <rule>
+    <key>ComplexityViolation</key>
+    <priority>MAJOR</priority>
+    <name><![CDATA[ABC Complexity Exceeds Threshold]]></name>
+    <description>
+      <![CDATA[
+        <p>
+          Methods exceeded maximum allowed ABC complexity.
+        </p>
+      ]]>
+    </description>
+  </rule>
+  <rule>
+    <key>LineStyleLengthViolation</key>
+    <priority>MINOR</priority>
+    <name><![CDATA[Line Length Exceeds Threshold]]></name>
+    <description>
+      <![CDATA[
+        <p>
+          The line length exceeds the specified threshold.
+        </p>
+      ]]>
+    </description>
+  </rule>
+  <rule>
+    <key>LineStyleTabsViolation</key>
+    <priority>MINOR</priority>
+    <name><![CDATA[Line Contains Hard Tabs]]></name>
+    <description>
+      <![CDATA[
+        <p>
+          The line contains hard tabs.
+        </p>
+      ]]>
+    </description>
+  </rule>
+  <rule>
+    <key>LineStyleWhitespaceViolation</key>
+    <priority>MINOR</priority>
+    <name><![CDATA[Line Contains Trailing Whitespace]]></name>
+    <description>
+      <![CDATA[
+        <p>
+          The line contains trailing whitespace.
+        </p>
+      ]]>
+    </description>
+  </rule>
+  <rule>
+    <key>CommentViolation</key>
+    <priority>MINOR</priority>
+    <name><![CDATA[Class Definition Requires Explanatory Comment]]></name>
+    <description>
+      <![CDATA[
+        <p>
+          Class definitions require explanatory comments on preceding line.
+        </p>
+      ]]>
+    </description>
+  </rule>
+</rules>

src/main/java/com/godaddy/sonar/ruby/metricfu/CaneViolation.java

@@ -0,0 +1,27 @@
+package com.godaddy.sonar.ruby.metricfu;
+
+public abstract class CaneViolation {
+    private String file;
+
+    public CaneViolation(String file) {
+        this.file = file;
+    }
+
+    public CaneViolation() {
+    }
+
+    public abstract String getKey();
+
+    public String getFile() {
+        return file;
+    }
+
+    public void setFile(String file) {
+        this.file = file;
+    }
+
+    @Override
+    public String toString() {
+        return "file: " + file;
+    }
+}

src/main/java/com/godaddy/sonar/ruby/metricfu/FlayReason.java

@@ -0,0 +1,76 @@
+package com.godaddy.sonar.ruby.metricfu;
+
+import java.util.ArrayList;
+
+public class FlayReason {
+
+	public class Match {
+		private String file;
+		private Integer start;
+		private Integer lines;
+
+		public Match(String file, Integer start, Integer lines) {
+			this.file = file;
+			this.start = start;
+			this.lines = lines;
+		}
+
+		public Match(String file, Integer start) {
+			this(file, start, 1);
+		}
+
+		public Match(String file) {
+			this(file, 1, 1);
+		}
+
+		public String getFile() {
+			return file;
+		}
+		public void setFile(String file) {
+			this.file = file;
+		}
+		public Integer getStartLine() {
+			return start;
+		}
+		public void setStartLine(Integer start) {
+			this.start = start;
+		}
+		public Integer getLines() {
+			return lines;
+		}
+		public void setLines(Integer lines) {
+			this.lines = lines;
+		}
+	}
+
+    private String reason;
+    private ArrayList<Match> matches = new ArrayList<Match>();
+
+    public FlayReason(String reason) {
+        this.reason = reason;
+    }
+
+    public FlayReason() {
+    }
+
+    public String getReason() {
+        return reason;
+    }
+
+    public void setReason(String reason) {
+        this.reason = reason;
+    }
+
+	public ArrayList<Match> getMatches() {
+		return matches;
+	}
+
+	public void addMatch(String file, Integer start) {
+		matches.add(new Match(file, start));
+	}
+
+    @Override
+    public String toString() {
+        return "reason: " + reason;
+    }
+}