druid/examples/bin/verify-java

74 lines
2.2 KiB
Perl
Executable File

#!/usr/bin/env perl
# 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.
use strict;
use warnings;
use File::Basename;
sub fail_check {
my ($current_version) = @_;
my $current_version_text = $current_version
? "Your current version is: $current_version."
: "No Java runtime was detected on your system.";
print STDERR <<"EOT";
Druid requires Java 8, 11, or 17. $current_version_text
If you believe this check is in error, or you want to proceed with a potentially
unsupported Java runtime, you can skip this check using an environment variable:
export DRUID_SKIP_JAVA_CHECK=1
Otherwise, install Java 8, 11, or 17 in one of the following locations.
* DRUID_JAVA_HOME
* JAVA_HOME
* java (installed on PATH)
Other versions of Java versions may work, but are not officially supported.
For more information about selecting a Java runtime visit:
https://druid.apache.org/docs/latest/operations/java.html
EOT
exit 1;
}
my $skip_var = $ENV{'DRUID_SKIP_JAVA_CHECK'};
if ($skip_var && $skip_var ne "0" && $skip_var ne "false" && $skip_var ne "f") {
exit 0;
}
my $cwd = dirname(__FILE__);
my $java_bin_dir = `. $cwd/java-util && get_java_bin_dir 2>&1`;
# If we could not find java
if ($java_bin_dir eq "") {
fail_check()
}
my $java_exec = "${java_bin_dir}/java";
my $java_version = qx["$java_exec" -version 2>&1];
if ($?) {
fail_check();
}
# If we know it won't work, die. Otherwise hope for the best.
if ($java_version =~ /version \"((\d+)\.(\d+).*?)\"/ && !($2 == 1 && $3 == 8) && $2 != 11 && $2 != 17 ) {
fail_check($1);
}