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#*****************************************************************************
# Copyright 2013 Thomas Calmant
#
# Licensed 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.
#
#*****************************************************************************
import os
from . import _jvmfinder
# ------------------------------------------------------------------------------
class LinuxJVMFinder(_jvmfinder.JVMFinder):
"""
Linux JVM library finder class
"""
def __init__(self):
"""
Sets up members
"""
# Call the parent constructor
_jvmfinder.JVMFinder.__init__(self)
# Java bin file
self._java = "/usr/bin/java"
# Library file name
self._libfile = "libjvm.so"
# Predefined locations
self._locations = ("/usr/lib/jvm", "/usr/java", "/opt/sun")
# Search methods
self._methods = (self._get_from_java_home,
self._get_from_bin,
self._get_from_known_locations)
def _get_from_bin(self):
"""
Retrieves the Java library path according to the real installation of
the java executable
:return: The path to the JVM library, or None
"""
# Find the real interpreter installation path
java_bin = os.path.realpath(self._java)
if os.path.exists(java_bin):
# Get to the home directory
java_home = os.path.abspath(os.path.join(os.path.dirname(java_bin),
'..'))
# Look for the JVM library
return self.find_libjvm(java_home)
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