| #!/usr/bin/env 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. |
| # |
| |
| ENV_PID_DIR="" |
| |
| JAVA_VERSION_PATTERNS=( "1.6.0_31/bin/java$" "1.6.0_.*/bin/java$" "1.6.0.*/bin/java$" "1.6\..*/bin/java$" "/bin/java$" ) |
| |
| function findJava() { |
| # Check to make sure any existing JAVA var is valid. |
| if [ "$JAVA" != "" ]; then |
| if [ ! -x "$JAVA" ]; then |
| JAVA="" |
| fi |
| fi |
| |
| # Try to use JAVA_HOME to find java. |
| if [ "$JAVA" == "" ]; then |
| if [ "$JAVA_HOME" != "" ]; then |
| JAVA=$JAVA_HOME/bin/java |
| if [ ! -x "$JAVA" ]; then |
| JAVA="" |
| fi |
| fi |
| fi |
| |
| # Try to find java on PATH. |
| if [ "$JAVA" == "" ]; then |
| JAVA=`which java 2>/dev/null` |
| if [ ! -x "$JAVA" ]; then |
| JAVA="" |
| fi |
| fi |
| |
| # Use the search patterns to find java. |
| if [ "$JAVA" == "" ]; then |
| for pattern in "${JAVA_VERSION_PATTERNS[@]}"; do |
| JAVA=( $(find /usr -executable -name java -print 2> /dev/null | grep "$pattern" | head -n 1 ) ) |
| if [ -x "$JAVA" ]; then |
| break |
| else |
| JAVA="" |
| fi |
| done |
| fi |
| } |
| |
| findJava |
| |
| if [[ -z $JAVA ]]; then |
| echo "Warning: JAVA is not set and could not be found." 1>&2 |
| fi |
| |
