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authorPetr Mrázek <peterix@gmail.com>2016-04-10 15:53:05 +0200
committerPetr Mrázek <peterix@gmail.com>2016-05-01 00:00:14 +0200
commitb6d455a02bd338e9dc0faa09d4d8177ecd8d569a (patch)
tree41982bca1ede50049f2f8c7109dd18edeefde6d0 /api/logic/java/JavaVersion.cpp
parent47e37635f50c09b4f9a9ee7699e3120bab3e4088 (diff)
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NOISSUE reorganize and document libraries
Diffstat (limited to 'api/logic/java/JavaVersion.cpp')
-rw-r--r--api/logic/java/JavaVersion.cpp112
1 files changed, 112 insertions, 0 deletions
diff --git a/api/logic/java/JavaVersion.cpp b/api/logic/java/JavaVersion.cpp
new file mode 100644
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--- /dev/null
+++ b/api/logic/java/JavaVersion.cpp
@@ -0,0 +1,112 @@
+#include "JavaVersion.h"
+#include <MMCStrings.h>
+
+#include <QRegularExpression>
+#include <QString>
+
+JavaVersion & JavaVersion::operator=(const QString & javaVersionString)
+{
+ string = javaVersionString;
+
+ auto getCapturedInteger = [](const QRegularExpressionMatch & match, const QString &what) -> int
+ {
+ auto str = match.captured(what);
+ if(str.isEmpty())
+ {
+ return 0;
+ }
+ return str.toInt();
+ };
+
+ QRegularExpression pattern;
+ if(javaVersionString.startsWith("1."))
+ {
+ pattern = QRegularExpression ("1[.](?<major>[0-9]+)([.](?<minor>[0-9]+))?(_(?<security>[0-9]+)?)?(-(?<prerelease>[a-zA-Z0-9]+))?");
+ }
+ else
+ {
+ pattern = QRegularExpression("(?<major>[0-9]+)([.](?<minor>[0-9]+))?([.](?<security>[0-9]+))?(-(?<prerelease>[a-zA-Z0-9]+))?");
+ }
+
+ auto match = pattern.match(string);
+ parseable = match.hasMatch();
+ major = getCapturedInteger(match, "major");
+ minor = getCapturedInteger(match, "minor");
+ security = getCapturedInteger(match, "security");
+ prerelease = match.captured("prerelease");
+ return *this;
+}
+
+JavaVersion::JavaVersion(const QString &rhs)
+{
+ operator=(rhs);
+}
+
+QString JavaVersion::toString()
+{
+ return string;
+}
+
+bool JavaVersion::requiresPermGen()
+{
+ if(parseable)
+ {
+ return major < 8;
+ }
+ return true;
+}
+
+bool JavaVersion::operator<(const JavaVersion &rhs)
+{
+ if(parseable && rhs.parseable)
+ {
+ if(major < rhs.major)
+ return true;
+ if(major > rhs.major)
+ return false;
+ if(minor < rhs.minor)
+ return true;
+ if(minor > rhs.minor)
+ return false;
+ if(security < rhs.security)
+ return true;
+ if(security > rhs.security)
+ return false;
+
+ // everything else being equal, consider prerelease status
+ bool thisPre = !prerelease.isEmpty();
+ bool rhsPre = !rhs.prerelease.isEmpty();
+ if(thisPre && !rhsPre)
+ {
+ // this is a prerelease and the other one isn't -> lesser
+ return true;
+ }
+ else if(!thisPre && rhsPre)
+ {
+ // this isn't a prerelease and the other one is -> greater
+ return false;
+ }
+ else if(thisPre && rhsPre)
+ {
+ // both are prereleases - use natural compare...
+ return Strings::naturalCompare(prerelease, rhs.prerelease, Qt::CaseSensitive) < 0;
+ }
+ // neither is prerelease, so they are the same -> this cannot be less than rhs
+ return false;
+ }
+ else return Strings::naturalCompare(string, rhs.string, Qt::CaseSensitive) < 0;
+}
+
+bool JavaVersion::operator==(const JavaVersion &rhs)
+{
+ if(parseable && rhs.parseable)
+ {
+ return major == rhs.major && minor == rhs.minor && security == rhs.security && prerelease == rhs.prerelease;
+ }
+ return string == rhs.string;
+}
+
+bool JavaVersion::operator>(const JavaVersion &rhs)
+{
+ return (!operator<(rhs)) && (!operator==(rhs));
+}