[server] On mah way (lots of restructuring, some early db classes, sql dump of current schema)

1 files changed, 21 insertions, 0 deletions

diff --git a/dozentenmodulserver/src/main/java/org/openslx/bwlp/sat/util/Constants.java b/dozentenmodulserver/src/main/java/org/openslx/bwlp/sat/util/Constants.java
new file mode 100644
index 00000000..6c2dc31b
--- /dev/null
+++ b/dozentenmodulserver/src/main/java/org/openslx/bwlp/sat/util/Constants.java
@@ -0,0 +1,21 @@
+package org.openslx.bwlp.sat.util;
+
+import org.openslx.bwlp.sat.fileserv.FileChunk;
+
+public class Constants {
+	public static final String INCOMPLETE_UPLOAD_SUFFIX = ".part";
+	public static final int MAX_UPLOADS;
+
+	static {
+		long maxMem = Runtime.getRuntime().maxMemory();
+		if (maxMem == Long.MAX_VALUE) {
+			// Apparently the JVM was started without a memory limit (no -Xmx cmdline),
+			// so we assume a default of 256MB
+			maxMem = 256l * 1024l * 1024l;
+		}
+		maxMem /= 1024l * 1024l;
+		// Now maxMem is the amount of memory in MiB
+
+		MAX_UPLOADS = (int) Math.max(1, (maxMem - 64) / (FileChunk.CHUNK_SIZE_MIB + 1));
+	}
+}