initial version of working mongodb gateway

examples/mongodb_gateway/gateway.js

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+/**
+   (c) Copyright 2018 Mind-Flip Limited
+   Based on the original from Intel (see license and details below).
+
+   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.
+
+
+   ----------------------------------------------------------------------------
+   (c) Copyright 2013 Intel Performance Learning Solutions Ltd,
+    Intel Corporation
+
+   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.
+
+ In addition to the Apache License, Version 2.0, please note that:
+ This software is subject to the U.S. Export Administration Regulations
+ and other U.S. law, and may not be exported or re-exported to certain
+ countries (Cuba, Iran, North Korea, Sudan, and Syria) or to persons or
+ entities prohibited from receiving U.S. exports (including Denied Parties,
+ Specially Designated Nationals, and entities on the Bureau of Export 
+ Administration Entity List or involved with missile technology or nuclear,
+ chemical or biological weapons).
+   
+**/
+
+var io = require('socket.io').listen(server);
+var ioclient = require('socket.io-client');
+var ipaddresses = require('./getlocalip');
+var importedSis = require('../../sis/sisyphus');
+var $sis = importedSis.$sis;
+
+var myIP = ipaddresses.getIPAddress();
+console.log("my local ip is being used:" + myIP);
+
+if ( process.argv.length == 3 ) {
+	console.log("Command line over rule for auto-detected IP address, using \"" + process.argv[2] + "\" instead.");
+	myIP = process.argv[2]; //"pint.dyndns.info";
+}
+
+$sis.configureAsGateway( { gateway : "node" }, "http://" + myIP + "/", [], io, ioclient );

examples/mongodb_gateway/getlocalip.js

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+/**
+   (c) Copyright 2013 Intel Performance Learning Solutions Ltd, Intel Corporation
+
+   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.
+   
+ In addition to the Apache License, Version 2.0, please note that:
+ This software is subject to the U.S. Export Administration Regulations
+ and other U.S. law, and may not be exported or re-exported to certain
+ countries (Cuba, Iran, North Korea, Sudan, and Syria) or to persons or
+ entities prohibited from receiving U.S. exports (including Denied Parties,
+ Specially Designated Nationals, and entities on the Bureau of Export 
+ Administration Entity List or involved with missile technology or nuclear,
+ chemical or biological weapons).
+   
+**/
+
+
+function getListOfIPAddresses() {
+	var retval = new Array();
+	var os = require('os');
+	var ifaces=os.networkInterfaces();
+	console.log("processing interfaces");
+
+	for(var dev in ifaces) {
+		var alias =0;
+		ifaces[dev].forEach(function(details){
+			if ( details.family=='IPv4') {
+				//console.log(dev+(alias?':'+alias:''),details.address);
+				retval.push(details.address);
+				alias++;				
+			}
+		});
+	}	
+
+	return retval;
+}
+
+function getFirstExternalIpAddress() {
+	var addresses = getListOfIPAddresses();
+	var retval = null;
+	for(var i =0 ; i < addresses.length; i++) {
+		if ( addresses[i] != '127.0.0.1' ) {
+			retval = addresses[i];
+			break;
+		}
+	}
+	return retval;
+}
+
+
+function getWorkableIPAddress() {
+	var address = getFirstExternalIpAddress();
+	if ( address == null ) {
+		addreess = '127.0.0.1';
+	}
+	return address;
+}
+
+if ( typeof(exports) != 'undefined' ) {
+	exports.getIPAddress = getWorkableIPAddress;
+}

examples/mongodb_gateway/install_npm_packages_for_mongodb_gateway.sh

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+#!/bin/bash
+
+function print {
+	echo -e "\e[36m$1\e[0m"
+}
+
+print "Install express" 
+sudo npm install express
+print "Install socket.io"
+sudo npm install socket.io
+sudo npm install socket.io-client
+print "Installing Q, for node"
+sudo npm install q
+print "Installing mongodb for node"
+sudo npm install mongodb
+

examples/mongodb_gateway/run_gateway.sh

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+#!/bin/bash
+
+###############################################################################
+# (c) Copyright 2018 Mind-Flip Limited
+#
+# 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.
+#
+#
+################################################################################
+
+
+function print {
+	echo -e "\e[36m$1\e[0m"
+}
+
+function print_green {
+	echo -e "\e[92m$1\e[0m"
+}
+
+
+
+function step {
+	LAST_STEP="$1"
+	print "$1"
+}
+
+function step_done {
+	print_green "$LAST_STEP finished."
+}
+
+function print_title {
+	print "Running Sisyphus Distributed Compute as Gateway"
+	print "=================================================="
+	print "Notes:"
+	print "  * Running 'nodejs' (based on Ubuntu)."
+	print "  * Runs web server (Express) on port 80 and"
+	print "    therefore requires sudo."
+	print "Please ensure that the installation steps outlined"
+	print "in the readme.md file within the 'sis' directory "
+	print "have been followed. "
+}
+
+print_title
+
+sudo nodejs ./gateway.js
+