#!/bin/bash
#
# Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
# ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
#
# Shell Script to run the Java Plug-in control panel on Mac OS X.
#

USAGE='usage: jcontrol [ -j jrepath ]'
XLERROR='jcontrol: Error: Invalid link or copy: '

#
# Get the absolute path to a symbolic link's reference.
#
# Parameters:
#     $* : path - the path to the file (link) to dereference (can have spaces in
#                 the path).
#
# Output:
#     This function writes the path to the link reference to stdout.
#
# Note: This function is not capable of detecting that one or more directories
#       in the path is also a link and unravelling that.
#
dereference() {
    path="$*"
    result=

    #
    # Make sure the path is absolute
    #
    parent="`cd \"\`"dirname" \"${path}\"\`\"; pwd`"
    child="`basename \"${path}\"`"

    #
    # if parent == child, then path == /, and is already absolute
    #
    if [ "${parent}" != "${child}" ]; then
        path="${parent}/${child}"
    fi

    if [ -h "${path}" ]; then
        path=`ls -l "${path}" | sed -e "s#^.*${path} -> ##"`

        # make sure the path is still absolute (starts with '/')
        if expr "${path}" : '[^/]' > /dev/null; then
            path="${parent}/${path}"
        fi
    fi

    echo ${path}
}

#
# Check for all the parts required to launch the control panel relative to the
# given path.
#
#
# Parameters:
#     $* : path - the path to examine, presumably the resolved path to this
#                 script (can have spaces in the path).
#
# Output:
#     If successful, this function outputs the absolute path to a directory
#     containing the Java binary, and ../lib/deploy.jar; otherwise it outputs
#     an empty string.  (Output is to stdout.)
#
# Note: the assumption is that this function returns either:
#
#            <jdk-root>/jre/bin, or
#            <jre-root>/bin
#
#       However, as long as the directory pointed by the path returned by this
#       function contains:
#
#            ./java
#            ../lib/deploy.jar
#
#       it should be possible to successfully launch the JCP from the given
#       information.
#
check_parts() {
    result="`cd \"\`dirname \"$*\"\`\"; pwd`"

    # if this is a JDK, we need the JRE subdir
    if [ -d "${result}/../jre/bin" ]; then
        result="`cd \`dirname \"$*\"\`/../jre/bin; pwd`"
    fi

    if [ ! -x "${result}/java" ] || [ ! -f "${result}/../lib/deploy.jar" ]; then
        result=
    fi

    echo "${result}"
}

#
# Launch the Java Control Panel.
#
# Parameters:
#     $* : path - the path of this script (can have spaces in the path).
#
launch_jcp() {
    path="$*"
    while [ -h "${path}" ]; do
        path="`dereference ${path}`"
    done

	# If no other options specified, give a default application name.
	# When invoked from System Preferences a localized name for the application should be
	# found and passed in via _JAVA_VM_OPTIONS.
    if [ -z "${_JAVA_VM_OPTIONS}" ]; then
        _JAVA_VM_OPTIONS=""
    fi

    if [ -z "${_JCP_DOCK_NAME}" ]; then
        _JCP_DOCK_NAME=-Xdock:name="Java Control Panel"
    fi

    if [ -z "${_JCP_DOCK_ICON}" ]; then
        _JCP_DOCK_ICON=-Xdock:icon="/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Resources/Java7VM.icns"
    fi

    java_home="`check_parts ${path}`"
    if [ -n "${java_home}" ]; then
	# launch the JCP using paths relative to
	# 8034819: Add java.locale.providers so we get properly formatted date/time strings
	"${java_home}"/java -Xbootclasspath/a:"${java_home}"/../lib/deploy.jar \
                    -Djava.locale.providers=HOST,JRE,SPI \
                    "${_JCP_DOCK_NAME}" \
                    "${_JCP_DOCK_ICON}" \
                    ${_JAVA_VM_OPTIONS} \
					com.sun.deploy.panel.ControlPanel
    else
        echo "${XLERROR}${java_home}"
        exit 1
    fi
}

launch_jcp $0
