			#!/bin/sh
			#
			# Copyright (c) 2012 - 2016 YCSB contributors. All rights reserved.
			#
			# 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. See accompanying
			# LICENSE file.
			#
			# -----------------------------------------------------------------------------
			# Control Script for YCSB
			#
			# Environment Variable Prerequisites
			#
			# Do not set the variables in this script. Instead put them into a script
			# setenv.sh in YCSB_HOME/bin to keep your customizations separate.
			#
			# YCSB_HOME (Optional) YCSB installation directory. If not set
			# this script will use the parent directory of where this
			# script is run from.
			#
			# JAVA_HOME (Optional) Must point at your Java Development Kit
			# installation. If empty, this script tries use the
			# available java executable.
			#
			# JAVA_OPTS (Optional) Java runtime options used when any command
			# is executed.
			#
			# WARNING!!! YCSB home must be located in a directory path that doesn't
			# contain spaces.
			#
			# www.shellcheck.net was used to validate this script

			# Cygwin support
			CYGWIN=false
			case "$(uname)" in
			CYGWIN*) CYGWIN=true;;
			esac

			# Get script path
			SCRIPT_DIR=$(dirname "$0" 2>/dev/null)

			# Only set YCSB_HOME if not already set
			[ -z "$YCSB_HOME" ] && YCSB_HOME=$(cd "$SCRIPT_DIR/.." \|\| exit; pwd)

			# Ensure that any extra CLASSPATH variables are set via setenv.sh
			CLASSPATH=

			# Pull in customization options
			if [ -r "$YCSB_HOME/bin/setenv.sh" ]; then
			# Shellcheck wants a source, but this directive only runs if available
			# So, tell shellcheck to ignore
			# shellcheck source=/dev/null
			. "$YCSB_HOME/bin/setenv.sh"
			fi

			# Attempt to find the available JAVA, if JAVA_HOME not set
			if [ -z "$JAVA_HOME" ]; then
			JAVA_PATH=$(which java 2>/dev/null)
			if [ "x$JAVA_PATH" != "x" ]; then
			JAVA_HOME=$(dirname "$(dirname "$JAVA_PATH" 2>/dev/null)")
			fi
			fi

			# If JAVA_HOME still not set, error
			if [ -z "$JAVA_HOME" ]; then
			echo "[ERROR] Java executable not found. Exiting."
			exit 1;
			fi

			# Determine YCSB command argument
			if [ "load" = "$1" ] ; then
			YCSB_COMMAND=-load
			YCSB_CLASS=com.yahoo.ycsb.Client
			elif [ "run" = "$1" ] ; then
			YCSB_COMMAND=-t
			YCSB_CLASS=com.yahoo.ycsb.Client
			elif [ "shell" = "$1" ] ; then
			YCSB_COMMAND=
			YCSB_CLASS=com.yahoo.ycsb.CommandLine
			else
			echo "[ERROR] Found unknown command '$1'"
			echo "[ERROR] Expected one of 'load', 'run', or 'shell'. Exiting."
			exit 1;
			fi

			# Find binding information
			BINDING_LINE=$(grep "^$2:" "$YCSB_HOME/bin/bindings.properties" -m 1)

			if [ -z "$BINDING_LINE" ] ; then
			echo "[ERROR] The specified binding '$2' was not found. Exiting."
			exit 1;
			fi

			# Get binding name and class
			BINDING_NAME=$(echo "$BINDING_LINE" \| cut -d':' -f1)
			BINDING_CLASS=$(echo "$BINDING_LINE" \| cut -d':' -f2)

			# Some bindings have multiple versions that are managed in the same directory.
			# They are noted with a '-' after the binding name.
			# (e.g. cassandra-7 & cassandra-8)
			BINDING_DIR=$(echo "$BINDING_NAME" \| cut -d'-' -f1)

			# The 'basic' binding is core functionality
			if [ "$BINDING_NAME" = "basic" ] ; then
			BINDING_DIR=core
			fi

			# For Cygwin, ensure paths are in UNIX format before anything is touched
			if $CYGWIN; then
			[ -n "$JAVA_HOME" ] && JAVA_HOME=$(cygpath --unix "$JAVA_HOME")
			[ -n "$CLASSPATH" ] && CLASSPATH=$(cygpath --path --unix "$CLASSPATH")
			fi

			# Check if source checkout, or release distribution
			DISTRIBUTION=true
			if [ -r "$YCSB_HOME/pom.xml" ]; then
			DISTRIBUTION=false;
			fi

			# Add Top level conf to classpath
			if [ -z "$CLASSPATH" ] ; then
			CLASSPATH="$YCSB_HOME/conf"
			else
			CLASSPATH="$CLASSPATH:$YCSB_HOME/conf"
			fi

			# Accumulo deprecation message
			if [ "${BINDING_DIR}" = "accumulo" ] ; then
			echo "[WARN] The 'accumulo' client has been deprecated in favor of version \
			specific bindings. This name still maps to the binding for \
			Accumulo 1.6, which is named 'accumulo-1.6'. This alias will \
			be removed in a future YCSB release."
			BINDING_DIR="accumulo1.6"
			fi

			# Accumulo 1.6 deprecation message
			if [ "${BINDING_DIR}" = "accumulo1.6" ] ; then
			echo "[WARN] The 'accumulo' client has been deprecated because Accumulo 1.6 \
			is EOM. If you are using Accumulo 1.7+ try using the 'accumulo1.7' client \
			instead."
			fi


			# Cassandra2 deprecation message
			if [ "${BINDING_DIR}" = "cassandra2" ] ; then
			echo "[WARN] The 'cassandra2-cql' client has been deprecated. It has been \
			renamed to simply 'cassandra-cql'. This alias will be removed in the next \
			YCSB release."
			BINDING_DIR="cassandra"
			fi

			# arangodb3 deprecation message
			if [ "${BINDING_DIR}" = "arangodb3" ] ; then
			echo "[WARN] The 'arangodb3' client has been deprecated. The binding 'arangodb' \
			now covers every ArangoDB version. This alias will be removed \
			in the next YCSB release."
			BINDING_DIR="arangodb"
			fi

			# Build classpath
			# The "if" check after the "for" is because glob may just return the pattern
			# when no files are found. The "if" makes sure the file is really there.
			if $DISTRIBUTION; then
			# Core libraries
			for f in "$YCSB_HOME"/lib/*.jar ; do
			if [ -r "$f" ] ; then
			CLASSPATH="$CLASSPATH:$f"
			fi
			done

			# Database conf dir
			if [ -r "$YCSB_HOME"/"$BINDING_DIR"-binding/conf ] ; then
			CLASSPATH="$CLASSPATH:$YCSB_HOME/$BINDING_DIR-binding/conf"
			fi

			# Database libraries
			for f in "$YCSB_HOME"/"$BINDING_DIR"-binding/lib/*.jar ; do
			if [ -r "$f" ] ; then
			CLASSPATH="$CLASSPATH:$f"
			fi
			done

			# Source checkout
			else
			# Check for some basic libraries to see if the source has been built.
			if ! ls "$YCSB_HOME"/core/target/*.jar 1> /dev/null 2>&1 \|\| \
			! ls "$YCSB_HOME"/"$BINDING_DIR"/target/*.jar 1>/dev/null 2>&1; then
			# Call mvn to build source checkout.
			if [ "$BINDING_NAME" = "basic" ] ; then
			MVN_PROJECT=core
			else
			MVN_PROJECT="$BINDING_DIR"-binding
			fi

			echo "[WARN] YCSB libraries not found. Attempting to build..."
			if mvn -Psource-run -pl com.yahoo.ycsb:"$MVN_PROJECT" -am package -DskipTests; then
			echo "[ERROR] Error trying to build project. Exiting."
			exit 1;
			fi
			fi

			# Core libraries
			for f in "$YCSB_HOME"/core/target/*.jar ; do
			if [ -r "$f" ] ; then
			CLASSPATH="$CLASSPATH:$f"
			fi
			done

			# Core dependency libraries
			for f in "$YCSB_HOME"/core/target/dependency/*.jar ; do
			if [ -r "$f" ] ; then
			CLASSPATH="$CLASSPATH:$f"
			fi
			done

			# Database conf (need to find because location is not consistent)
			CLASSPATH_CONF=$(find "$YCSB_HOME"/$BINDING_DIR -name "conf" \| while IFS="" read -r file; do echo ":$file"; done)
			if [ "x$CLASSPATH_CONF" != "x" ]; then
			CLASSPATH="$CLASSPATH$CLASSPATH_CONF"
			fi

			# Database libraries
			for f in "$YCSB_HOME"/"$BINDING_DIR"/target/*.jar ; do
			if [ -r "$f" ] ; then
			CLASSPATH="$CLASSPATH:$f"
			fi
			done

			# Database dependency libraries
			for f in "$YCSB_HOME"/"$BINDING_DIR"/target/dependency/*.jar ; do
			if [ -r "$f" ] ; then
			CLASSPATH="$CLASSPATH:$f"
			fi
			done
			fi

			# Couchbase deprecation message
			if [ "${BINDING_DIR}" = "couchbase" ] ; then
			echo "[WARN] The 'couchbase' client is deprecated. If you are using \
			Couchbase 4.0+ try using the 'couchbase2' client instead."
			fi

			# HBase 0.98 deprecation message
			if [ "${BINDING_DIR}" = "hbase098" ] ; then
			echo "[WARN] The 'hbase098' client is deprecated because HBase 0.98 \
			is EOM. If you are using HBase 1.2+ try using the 'hbase12' client \
			instead."
			fi

			# HBase 1.0 deprecation message
			if [ "${BINDING_DIR}" = "hbase10" ] ; then
			echo "[WARN] The 'hbase10' client is deprecated because HBase 1.0 \
			is EOM. If you are using HBase 1.2+ try using the 'hbase12' client \
			instead."
			fi

			# For Cygwin, switch paths to Windows format before running java
			if $CYGWIN; then
			[ -n "$JAVA_HOME" ] && JAVA_HOME=$(cygpath --unix "$JAVA_HOME")
			[ -n "$CLASSPATH" ] && CLASSPATH=$(cygpath --path --windows "$CLASSPATH")
			fi

			# Get the rest of the arguments
			YCSB_ARGS=$(echo "$@" \| cut -d' ' -f3-)

			# About to run YCSB
			echo "$JAVA_HOME/bin/java $JAVA_OPTS -classpath $CLASSPATH $YCSB_CLASS $YCSB_COMMAND -db $BINDING_CLASS $YCSB_ARGS"

			# Run YCSB
			# Shellcheck reports the following line as needing double quotes to prevent
			# globbing and word splitting. However, word splitting is the desired effect
			# here. So, the shellcheck error is disabled for this line.
			# shellcheck disable=SC2086
			"$JAVA_HOME/bin/java" $JAVA_OPTS -classpath "$CLASSPATH" $YCSB_CLASS $YCSB_COMMAND -db $BINDING_CLASS $YCSB_ARGS

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