P19 23.07 online-configP19

1 files changed, 40 insertions, 0 deletions

diff --git a/MPE/druid/bin/java-util b/MPE/druid/bin/java-util
new file mode 100644
index 0000000..3732a8e
--- /dev/null
+++ b/MPE/druid/bin/java-util
@@ -0,0 +1,40 @@
+#!/bin/bash
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+#######################################
+# A utility script to search for java. The order in which we look for java
+# goes from most specific to least specific, i.e.
+#     ${DRUID_JAVA_HOME}
+#     ${JAVA_HOME}
+#     ${PATH}
+# Arguments:
+#   None
+# Returns:
+#   The bin folder of java if it exists, otherwise an empty string
+#######################################
+get_java_bin_dir() {
+    if [ ! -z "${DRUID_JAVA_HOME-}" ]; then
+      printf "$DRUID_JAVA_HOME/bin"
+    elif [ ! -z "${JAVA_HOME-}" ]; then
+      printf "$JAVA_HOME/bin"
+    elif [ ! -z "$(command -v java)" ]; then
+      # Strip /java from the location of where java is installed
+      JAVA_ON_PATH="$(command -v java)"
+      printf "${JAVA_ON_PATH%/java}"
+    else
+      printf ""
+    fi
+}