#!/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.
#

DEFAULT_CLIENT_CONF=$PULSAR_HOME/conf/client.conf
DEFAULT_LOG_CONF=$PULSAR_HOME/conf/log4j2.yaml

if [ -f "$PULSAR_HOME/conf/pulsar_tools_env.sh" ]
then
    . "$PULSAR_HOME/conf/pulsar_tools_env.sh"
fi

# Check for the java to use
if [[ -z $JAVA_HOME ]]; then
    JAVA=$(which java)
    if [ $? != 0 ]; then
        echo "Error: JAVA_HOME not set, and no java executable found in $PATH." 1>&2
        exit 1
    fi
else
    JAVA=$JAVA_HOME/bin/java
fi

# exclude tests jar
RELEASE_JAR=`ls $PULSAR_HOME/pulsar-*.jar 2> /dev/null | grep -v tests | tail -1`
if [ $? == 0 ]; then
    PULSAR_JAR=$RELEASE_JAR
fi

# exclude tests jar
BUILT_JAR=`ls $PULSAR_HOME/pulsar-client-tools/target/pulsar-*.jar 2> /dev/null | grep -v tests | tail -1`
if [ $? != 0 ] && [ ! -e "$PULSAR_JAR" ]; then
    echo "\nCouldn't find pulsar jar.";
    echo "Make sure you've run 'mvn package'\n";
    exit 1;
elif [ -e "$BUILT_JAR" ]; then
    PULSAR_JAR=$BUILT_JAR
fi

add_maven_deps_to_classpath() {
    MVN="mvn"
    if [ "$MAVEN_HOME" != "" ]; then
	MVN=${MAVEN_HOME}/bin/mvn
    fi

    # Need to generate classpath from maven pom. This is costly so generate it
    # and cache it. Save the file into our target dir so a mvn clean will get
    # clean it up and force us create a new one.
    f="${PULSAR_HOME}/distribution/server/target/classpath.txt"
    if [ ! -f "${f}" ]
    then
    (
      cd "${PULSAR_HOME}"
      ${MVN} -pl distribution/server generate-sources &> /dev/null
    )
    fi
    PULSAR_CLASSPATH=${CLASSPATH}:`cat "${f}"`
}

if [ -d "$PULSAR_HOME/lib" ]; then
    PULSAR_CLASSPATH="$PULSAR_CLASSPATH:$PULSAR_HOME/lib/*"
else
    add_maven_deps_to_classpath
fi

if [ -z "$PULSAR_CLIENT_CONF" ]; then
    PULSAR_CLIENT_CONF=$DEFAULT_CLIENT_CONF
fi
if [ -z "$PULSAR_LOG_CONF" ]; then
    PULSAR_LOG_CONF=$DEFAULT_LOG_CONF
fi

PULSAR_CLASSPATH="$PULSAR_JAR:$PULSAR_CLASSPATH:$PULSAR_EXTRA_CLASSPATH"
PULSAR_CLASSPATH="`dirname $PULSAR_LOG_CONF`:$PULSAR_CLASSPATH"
OPTS="$OPTS -Dlog4j.configurationFile=`basename $PULSAR_LOG_CONF`"
OPTS="$OPTS -Djava.net.preferIPv4Stack=true"

OPTS="-cp $PULSAR_CLASSPATH $OPTS"

OPTS="$OPTS $PULSAR_EXTRA_OPTS"

# log directory & file
PULSAR_LOG_DIR=${PULSAR_LOG_DIR:-"$PULSAR_HOME/logs"}
PULSAR_LOG_APPENDER=${PULSAR_LOG_APPENDER:-"RoutingAppender"}
PULSAR_LOG_LEVEL=${PULSAR_LOG_LEVEL:-"info"}
PULSAR_LOG_ROOT_LEVEL=${PULSAR_LOG_ROOT_LEVEL:-"${PULSAR_LOG_LEVEL}"}
PULSAR_ROUTING_APPENDER_DEFAULT=${PULSAR_ROUTING_APPENDER_DEFAULT:-"Console"}

#Configure log configuration system properties
OPTS="$OPTS -Dpulsar.log.appender=$PULSAR_LOG_APPENDER"
OPTS="$OPTS -Dpulsar.log.dir=$PULSAR_LOG_DIR"
OPTS="$OPTS -Dpulsar.log.level=$PULSAR_LOG_LEVEL"
OPTS="$OPTS -Dpulsar.log.root.level=$PULSAR_LOG_ROOT_LEVEL"
OPTS="$OPTS -Dpulsar.routing.appender.default=$PULSAR_ROUTING_APPENDER_DEFAULT"