xml config support & multi-step command matcher

src/main/java/love/sola/netsupport/wechat/Command.java

@@ -0,0 +1,51 @@
+package love.sola.netsupport.wechat;
+
+import lombok.Getter;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * ***********************************************
+ * Created by Sola on 2015/11/26.
+ * Don't modify this source without my agreement
+ * ***********************************************
+ */
+public enum Command {
+
+	REGISTER(0, "Register", "(?i)^Register$"),
+	;
+
+	private static final Map<Integer, Command> ID_MAP = new HashMap<>();
+
+	static {
+		for (Command type : values()) {
+			if (type.id > 0) {
+				ID_MAP.put(type.id, type);
+			}
+		}
+	}
+
+	@Getter
+	private final String name;
+	@Getter
+	private final String regex;
+	@Getter
+	private final int id;
+
+	Command(int id, String name, String regex) {
+		this.name = name;
+		this.id = id;
+		this.regex = regex;
+	}
+
+	public static Command fromId(int id) {
+		return ID_MAP.get(id);
+	}
+
+	@Override
+	public String toString() {
+		return name;
+	}
+
+}