Fix MysqlDataTruncation exception when user requests page with long method name.

Fix #398

Author: azorinmsu

src/main/java/ru/mystamps/web/Db.java

@@ -33,6 +33,7 @@ public static final class Series {
 
 	public static final class SuspiciousActivity {
 		public static final int PAGE_URL_LENGTH     = 100;
+		public static final int METHOD_LENGTH       = 7;
 		public static final int REFERER_PAGE_LENGTH = 255;
 		public static final int USER_AGENT_LENGTH   = 255;
 	}

src/main/java/ru/mystamps/web/service/SiteServiceImpl.java

@@ -144,7 +144,7 @@ protected void logEvent(
 		activity.setType(type);
 		activity.setOccurredAt(date == null ? new Date() : date);
 		activity.setPage(abbreviatePage(page));
-		activity.setMethod(method);
+		activity.setMethod(abbreviateMethod(method));
 		activity.setUserId(userId);
 		activity.setIp(StringUtils.defaultString(ip));
 		activity.setRefererPage(StringUtils.stripToNull(abbreviateRefererPage(referer)));
@@ -153,6 +153,16 @@ protected void logEvent(
 		suspiciousActivities.add(activity);
 	}
 
+	/**
+	 * Abbreviate name of HTTP method.
+	 * @param method name of HTTP method
+	 * @return name of the method as-is or its abbreviation with three points at the end
+	 * @author Aleksandr Zorin
+	 */
+	private static String abbreviateMethod(String method) {
+		return abbreviateIfLengthGreaterThan(method, Db.SuspiciousActivity.METHOD_LENGTH, "method");
+	}
+	
 	private static String abbreviatePage(String page) {
 		return abbreviateIfLengthGreaterThan(page, Db.SuspiciousActivity.PAGE_URL_LENGTH, "page");
 	}

src/test/groovy/ru/mystamps/web/service/SiteServiceImplTest.groovy

@@ -201,6 +201,20 @@ class SiteServiceImplTest extends Specification {
 			'OPTIONS'         | _
 			null              | _
 	}
+
+	def "logEvent() should pass abbreviated method when it's too long"() {
+		given:
+			String method = "PROPFIND"
+		and:
+			String exceptedMethod = method.take(Db.SuspiciousActivity.METHOD_LENGTH-3) + '...'
+		when:
+			serviceImpl.logEvent(TEST_TYPE, TEST_PAGE, method, null, null, null, TEST_USER_AGENT, null)
+		then:
+			1 * suspiciousActivityDao.add({ AddSuspiciousActivityDbDto activity ->
+				assert activity?.method == exceptedMethod
+				return true
+			})
+	}
 
 	def "logEvent() should pass null to dao for unknown user id"() {
 		when: