Initial import. Excpect bugs.

1 files changed, 95 insertions, 0 deletions

diff --git a/eclass/java-utils.eclass b/eclass/java-utils.eclass
new file mode 100644
index 000000000000..748966cf116e
--- /dev/null
+++ b/eclass/java-utils.eclass
@@ -0,0 +1,95 @@
+#
+# Helper class for all Java packages
+#
+# Copyright (c) 2004, Thomas Matthijs <axxo@keanu.be>
+# Copyright (c) 2004, Karl Trygve Kalleberg <karltk@gentoo.org>
+# Copyright (c) 2004, Gentoo Foundation
+#
+# Licensed under the GNU General Public License, v2
+
+inherit eutils
+
+ECLASS=java-utils
+INHERITED="$INHERITED $ECLASS"
+DESCRIPTION="Based on the $ECLASS eclass"
+
+DEPEND=">=java-config-1.2.7"
+
+EXPORT_FUNCTIONS pkg_setup
+
+java-utils_pkg_setup() {
+	java-utils_ensure-jdk
+}
+
+java-utils_setup-vm() {
+
+	local vendor=`java-utils_get-vm-vendor`
+	if [ ${vendor} = "sun-jdk" ] && java-utils_is-vm-version 1 5; then
+		addpredict "/dev/random"
+	elif [[ ${vendor} = "ibm-jdk-bin" ]]; then
+		addwrite "/proc/self/maps"
+		addwrite "/proc/cpuinfo"
+	elif [[ ${vendor} = "jrockit-jdk-bin" ]]; then
+		addwrite "/proc/cpuinfo"
+	fi
+}
+
+java-utils_ensure-jdk() {
+	if ! java-utils_is-vm-jdk; then
+		eerror "A full JDK is needed by this package. You currently have no Java VM active or only a JRE"
+		eerror "Please use java-config -S to set your system vm to a JDK"
+		die "Active VM is not a JDK"
+	fi
+}
+
+java-utils_is-vm-jdk() {
+	if [ "$JDK_HOME" ] && [ "$JDK_HOME" == "$JAVA_HOME" ]; then
+		return 0
+	else
+		return 1
+	fi	
+}
+
+java-utils_get-vm-vendor() {
+	local vm=$(java-config -f)
+	echo ${vm%-*}
+}
+
+java-utils_get-vm-version() {
+	local version=$(java-config -f | sed -r "s/^[a-zA-Z-]+//")
+	echo ${version}
+}
+
+java-utils_ensure-vm-version-ge() {
+	if ! java-utils_is-vm-version-ge $@ ; then
+		eerror "This package requires a Java VM version >= $@"
+		einfo "Please use java-config -S to set the correct one"
+		die "Active Java VM too old"
+	fi
+}
+
+java-utils_is-vm-version-ge() {
+	local user_major=${1-0}
+	local user_minor=${2-0}
+	local user_patch=${3-0}
+	local user_version=${user_major}.${user_minor}.${user_patch}
+	
+	local vm_version=`java-utils_get-vm-version`
+
+	local ver_rx="([0-9]+)\.([0-9]+)\.([0-9]+)(.*)"
+	local vm_major=$(echo ${vm_version} | sed -r "s/${ver_rx}/\1/")
+	local vm_minor=$(echo ${vm_version} | sed -r "s/${ver_rx}/\2/")
+	local vm_patch=$(echo ${vm_version} | sed -r "s/${ver_rx}/\3/")
+	local vm_extra=$(echo ${vm_version} | sed -r "s/${ver_rx}/\4/")
+
+	if [ ${vm_major} -ge ${user_major} ] && [ ${vm_minor} -gt ${user_minor} ] ; then
+		echo "Detected a JDK >= ${user_version}"
+		return 0
+	elif [ ${vm_major} -ge ${user_major} ] && [ ${vm_minor} -ge ${user_minor} ] && [ ${vm_patch} -ge ${user_patch} ] ; then
+		echo "Detected a JDK >= ${user_version}"
+		return 0
+	else
+		echo "Detected a JDK < ${user_version}"
+		return 1
+	fi
+}