AnalogIn, DigitalIn, DigitalOut, Simulation, and Card classes all working correctly so far

src/main/java/com/henrypump/poc/AnalogIn.java

@@ -0,0 +1,76 @@
+package com.henrypump.poc;
+
+/**
+ * Created by patrickjmcd on 2/1/17.
+ */
+
+import mraa.Dir;
+import mraa.Aio;
+import mraa.mraa;
+import mraa.Platform;
+import mraa.Result;
+
+import static java.lang.Thread.sleep;
+
+
+public class AnalogIn {
+    private int channel;
+    private Aio gpioPin;
+    private double lastValue;
+    private double rawMin;
+    private double rawMax;
+    private double euMin;
+    private double euMax;
+
+    static {
+        try {
+            System.loadLibrary("mraajava");
+        } catch (UnsatisfiedLinkError e) {
+            System.err.println(
+                    "Native code library failed to load. See the chapter on Dynamic Linking Problems in the SWIG Java documentation for help.\n" +
+                            e);
+            System.exit(1);
+        }
+    }
+
+    AnalogIn(int channel, double rawMin, double rawMax, double euMin, double euMax){
+        Platform platform = mraa.getPlatformType();
+        if (platform != Platform.INTEL_EDISON_FAB_C) {
+            System.err.println("Error: This program can only be run on edison");
+            System.exit(Result.ERROR_INVALID_PLATFORM.swigValue());
+        }
+
+        this.channel = channel;
+        this.gpioPin = new Aio(this.channel);
+        this.rawMax = rawMax;
+        this.rawMin = rawMin;
+        this.euMax = euMax;
+        this.euMin = euMin;
+    }
+
+    public long readRaw(){
+        return gpioPin.read();
+    }
+
+    public double readScaled(){
+        double pv  = ((euMax - euMin)/(rawMax - rawMin)) * gpioPin.read() + (euMax - ((euMax - euMin)/(rawMax - rawMin)) * rawMax);
+        lastValue = pv;
+        return pv;
+    }
+
+    public static void main(String[] args){
+        System.out.println("Testing Analog Inputs Inputs...");
+        boolean forceEnd = false;
+        AnalogIn testIn0 = new AnalogIn(0, 0, 1020, 0, 4.6);
+
+        do {
+            try{
+                System.out.println("Raw = " + testIn0.readRaw());
+                System.out.println("Scaled = " + testIn0.readScaled());
+                sleep(500);
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+            }
+        } while (!forceEnd);
+    }
+}

src/main/java/com/henrypump/poc/App.java

@@ -0,0 +1,13 @@
+package com.henrypump.poc;
+
+/**
+ * Hello world!
+ *
+ */
+public class App 
+{
+    public static void main( String[] args )
+    {
+        System.out.println( "Hello World!" );
+    }
+}

src/main/java/com/henrypump/poc/Card.java

@@ -0,0 +1,53 @@
+package com.henrypump.poc;
+
+/**
+ * Created by patrickjmcd on 1/31/17.
+ */
+public class Card {
+    // Card Points
+    private int maxPoints = 1500;
+    private double[] surfacePosition = new double[maxPoints];
+    private double[] downholePosition = new double[maxPoints];
+    private double[] surfaceLoad = new double[maxPoints];
+    private double[] downholeLoad = new double[maxPoints];
+
+    //Card
+    private int strokeNumber;
+    private LPPair surfacePositionMax;
+
+    public void setSurfacePosition(int i, double position){
+        this.surfacePosition[i] = position;
+    };
+
+    public void setDownholePosition(int i, double position){
+        this.downholePosition[i] = position;
+    };
+
+    public void setSurfaceLoad(int i, double load){
+        this.surfaceLoad[i] = load;
+    };
+
+    public void setDownholeLoad(int i, double load){
+        this.downholeLoad[i] = load;
+    };
+
+    public double[] getSurfacePosition() {
+        return this.surfacePosition;
+    }
+
+    public double[] getDownholePosition() {
+        return this.downholePosition;
+    }
+
+    public double[] getSurfaceLoad() {
+        return this.surfaceLoad;
+    }
+
+    public double[] getDownholeLoad() {
+        return this.downholeLoad;
+    }
+
+    public LPPair getSurfacePositionMax() {
+        return this.surfacePositionMax;
+    }
+}

src/main/java/com/henrypump/poc/DigitalIn.java

@@ -0,0 +1,96 @@
+package com.henrypump.poc;
+
+/**
+ * Created by patrickjmcd on 1/31/17.
+ */
+
+/*
+ * Author: Brendan Le Foll <brendan.le.foll@intel.com>
+ * Author: Petre Eftime <petre.p.eftime@intel.com>
+ * Copyright (c) 2015 Intel Corporation.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+import mraa.Dir;
+import mraa.Gpio;
+import mraa.mraa;
+import mraa.Platform;
+import mraa.Result;
+
+public class DigitalIn {
+    private int channel;
+    private Gpio gpioPin;
+    private int lastValue;
+
+    static {
+        try {
+            System.loadLibrary("mraajava");
+        } catch (UnsatisfiedLinkError e) {
+            System.err.println(
+                    "Native code library failed to load. See the chapter on Dynamic Linking Problems in the SWIG Java documentation for help.\n" +
+                            e);
+            System.exit(1);
+        }
+    }
+
+    DigitalIn(int channel){
+        Platform platform = mraa.getPlatformType();
+
+        if (platform != Platform.INTEL_EDISON_FAB_C) {
+            System.err.println("Error: This program can only be run on edison");
+            System.exit(Result.ERROR_INVALID_PLATFORM.swigValue());
+        }
+
+        this.channel = channel;
+        this.gpioPin = new Gpio(this.channel);
+        gpioPin.dir(Dir.DIR_IN);
+    }
+
+    public int read(){
+        lastValue = gpioPin.read();
+        return lastValue;
+    }
+
+    public static void main(String[] args){
+        System.out.println("Testing Digital Inputs. Script will loop until ch8 and ch9 both equal 1");
+        boolean forceEnd = false;
+        DigitalIn testIn8 = new DigitalIn(8);
+        DigitalIn testIn9 = new DigitalIn(9);
+
+        DigitalOut testOut2 = new DigitalOut(2);
+        DigitalOut testOut3 = new DigitalOut(3);
+
+        int in8val, in9val;
+        do {
+            in8val = testIn8.read();
+            in9val = testIn9.read();
+
+            testOut2.write(in8val);
+            testOut3.write(in9val);
+
+            if (in8val == 1 && in9val == 1) forceEnd = true;
+            testOut2.write(0);
+            testOut3.write(0);
+        } while (!forceEnd);
+    }
+
+}
+

src/main/java/com/henrypump/poc/DigitalOut.java

@@ -0,0 +1,84 @@
+package com.henrypump.poc;
+
+/**
+ * Created by patrickjmcd on 2/1/17.
+ */
+
+import mraa.Dir;
+import mraa.Gpio;
+import mraa.mraa;
+import mraa.Platform;
+import mraa.Result;
+
+import static java.lang.Thread.sleep;
+
+public class DigitalOut {
+    private int channel;
+    private Gpio gpioPin;
+
+    static {
+        try {
+            System.loadLibrary("mraajava");
+        } catch (UnsatisfiedLinkError e) {
+            System.err.println(
+                    "Native code library failed to load. See the chapter on Dynamic Linking Problems in the SWIG Java documentation for help.\n" +
+                            e);
+            System.exit(1);
+        }
+    }
+
+    DigitalOut(int channel){
+        Platform platform = mraa.getPlatformType();
+
+        if (platform != Platform.INTEL_EDISON_FAB_C) {
+            System.err.println("Error: This program can only be run on edison");
+            System.exit(Result.ERROR_INVALID_PLATFORM.swigValue());
+        }
+
+        this.channel = channel;
+        this.gpioPin = new Gpio(this.channel);
+        gpioPin.dir(Dir.DIR_OUT);
+    }
+
+    public void write(int writeVal){
+        gpioPin.write(writeVal);
+    }
+
+    public static void main(String[] args){
+        try {
+            DigitalOut testOut2 = new DigitalOut(2);
+            testOut2.write(1);
+            sleep(500);
+            testOut2.write(0);
+
+            DigitalOut testOut3 = new DigitalOut(3);
+            testOut3.write(1);
+            sleep(500);
+            testOut3.write(0);
+
+            DigitalOut testOut4 = new DigitalOut(4);
+            testOut4.write(1);
+            sleep(500);
+            testOut4.write(0);
+
+            DigitalOut testOut5 = new DigitalOut(5);
+            testOut5.write(1);
+            sleep(500);
+            testOut5.write(0);
+
+            DigitalOut testOut6 = new DigitalOut(6);
+            testOut6.write(1);
+            sleep(500);
+            testOut6.write(0);
+
+            DigitalOut testOut7 = new DigitalOut(7);
+            testOut7.write(1);
+            sleep(500);
+            testOut7.write(0);
+
+        } catch(InterruptedException ex) {
+            Thread.currentThread().interrupt();
+        }
+    }
+
+}

src/main/java/com/henrypump/poc/LPPair.java

@@ -0,0 +1,23 @@
+package com.henrypump.poc;
+
+/**
+ * Created by patrickjmcd on 1/31/17.
+ */
+public class LPPair {
+    private double position;
+    private double load;
+
+    public LPPair(double position, double load){
+        this.position = position;
+        this.load = load;
+    };
+
+    public double getPosition(){
+        return this.position;
+    };
+
+    public double getLoad(){
+        return this.load;
+    };
+
+}

src/main/java/com/henrypump/poc/LPStatus.java

@@ -0,0 +1,17 @@
+package com.henrypump.poc;
+
+/**
+ * Created by patrickjmcd on 1/31/17.
+ */
+public class LPStatus extends LPPair{
+    private int status;
+
+    public LPStatus(double position, double load, int status) {
+        super(position, load);
+        this.status = status;
+    }
+
+    public int getStatus() {
+        return status;
+    }
+}

src/main/java/com/henrypump/poc/POC.java

@@ -0,0 +1,8 @@
+package com.henrypump.poc;
+
+/**
+ * Created by patrickjmcd on 2/1/17.
+ */
+public class POC {
+
+}

src/main/java/com/henrypump/poc/Simulation.java

@@ -0,0 +1,72 @@
+package com.henrypump.poc;
+
+import java.io.BufferedReader;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.io.IOException;
+
+/**
+ * Created by patrickjmcd on 2/1/17.
+ */
+public class Simulation {
+
+    private double[] position = new double[1000];
+    private double[] load = new double[1000];
+    private int lastFilledIndex = 0;
+
+    private void parseCSV(String filename){
+        BufferedReader br = null;
+        String line = "";
+        String cvsSplitBy = ",";
+        int lineNum = 0;
+        try {
+            br = new BufferedReader(new FileReader(filename));
+            while ((line = br.readLine()) != null) {
+                // use comma as separator
+                String[] splitLine = line.split(cvsSplitBy);
+                position[lineNum] = Double.parseDouble(splitLine[0]);
+                load[lineNum] = Double.parseDouble(splitLine[1]);
+                lineNum++;
+            }
+
+
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        } finally {
+
+            if (br != null) {
+                lastFilledIndex = lineNum - 1;
+                try {
+                    br.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
+
+    public double positionAtIndex(int ind){
+        return position[ind];
+    }
+
+    public double loadAtIndex(int ind){
+        return load[ind];
+    }
+
+    Simulation(String simFilePath){
+        parseCSV(simFilePath);
+    }
+
+    public static void main(String[] args){
+        Simulation sim = new Simulation(args[0]);
+        for(int i = 0; i <= sim.lastFilledIndex; i++){
+            System.out.println("Position: " + sim.positionAtIndex(i) + ", Load: "+ sim.loadAtIndex(i));
+        }
+    }
+
+
+
+
+}

src/main/java/com/henrypump/poc/Well.java

@@ -0,0 +1,595 @@
+package com.henrypump.poc;
+
+
+import org.json.simple.JSONArray;
+import org.json.simple.JSONObject;
+import org.json.simple.parser.JSONParser;
+import org.json.simple.parser.ParseException;
+
+import static java.lang.Math.exp;
+import static java.lang.Math.pow;
+import static java.lang.Math.sqrt;
+
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.io.IOException;
+
+/**
+ * Created by patrickjmcd on 1/31/17.
+ */
+public class Well {
+    private double[][] topPosArray = new double[10][100];
+    private double[][] topLoadArray = new double[10][100];
+
+    // CONSTANTS
+    private static double YM_STEEL = 30.5;
+    private static double YM_FIBERGLASS = 7.2;
+    private static final int BAD_STATUS = 0;
+    private static final int GOOD_STATUS = 0;
+
+    // USER INPUTS
+    private double dt;
+    private double tubingHeadPressure;
+    private double fluidGradient;
+    private double sbfriction;
+    private int numTapers;
+    private double tubingAnchorDepth;
+    private double pumpDiameter;
+    private double tubingID, tubingOD;
+    private double structuralRating;
+    private double[] c = new double[11];
+    private double[] rodLength = new double[11];
+    private double[] rodDiameter = new double[11];
+    private double[] rodYM = new double[11];
+    private double[] rodWeightPerFoot = new double[11];
+
+
+    // CALCULATED TAPER PARAMETERS
+    private int nT1; // should always be equal to number of tapers + 1
+    private double frictionEstimate;
+    private double theoreticalMaxFluidLoad;
+    private double[] a = new double[11];
+    private double[] area = new double[11];
+    private double[] pressure = new double[11];
+    private double[] buoyantForce = new double[11];
+    private double buoyantForceTotal;
+    private double[] stretch = new double[11];
+    private double[] weightData = new double[11];
+    private double weightDataTotal;
+    private double[] annularForceData = new double[11];
+    private double annularForceDataTotal;
+    private double[] force = new double[11];
+    private double[] alpha = new double[11];
+    private double[] xOverA = new double[11];
+    private double[] factor = new double[11];
+    private int[] lagIndex = new int[11];
+    private int[] lengthRequired = new int[11];
+    private int[] centerPoint = new int[11];
+    private double[] rodDepth = new double[11];
+    private double rodDepthTotal;
+    private double[] rodWeightAir = new double[11];
+    private double rodWeightAirTotal;
+    private double[] rodWeightFluid = new double[11];
+    private double rodWeightFluidTotal;
+
+
+    private double pumpArea;
+    private double tubingCrossSectionalArea;
+
+    // Intermediate Variables
+    private double loadBefore = 0.0;
+    private double loadAfter = 0.0;
+    private double loadBefore3 = 0.0;
+    private double loadAfter3 = 0.0;
+
+    private int[] count = new int[11];
+    private double sPositionPrevious;
+
+    public double getDt() {
+        return dt;
+    }
+
+    public void setDt(double dt) {
+        this.dt = dt;
+    }
+
+    public double getTubingHeadPressure() {
+        return tubingHeadPressure;
+    }
+
+    public void setTubingHeadPressure(double tubingHeadPressure) {
+        this.tubingHeadPressure = tubingHeadPressure;
+    }
+
+    public double getFluidGradient() {
+        return fluidGradient;
+    }
+
+    public void setFluidGradient(double fluidGradient) {
+        this.fluidGradient = fluidGradient;
+    }
+
+    public double getSbfriction() {
+        return sbfriction;
+    }
+
+    public void setSbfriction(double sbfriction) {
+        this.sbfriction = sbfriction;
+    }
+
+    public int getNumTapers() {
+        return numTapers;
+    }
+
+    public void setNumTapers(int numTapers) {
+        this.numTapers = numTapers;
+    }
+
+    public double getTubingAnchorDepth() {
+        return tubingAnchorDepth;
+    }
+
+    public void setTubingAnchorDepth(double tubingAnchorDepth) {
+        this.tubingAnchorDepth = tubingAnchorDepth;
+    }
+
+    public double getPumpDiameter() {
+        return pumpDiameter;
+    }
+
+    public void setPumpDiameter(double pumpDiameter) {
+        this.pumpDiameter = pumpDiameter;
+        this.pumpArea = pow(pumpDiameter, 2)  * Math.PI;
+    }
+
+    public double getTubingID() {
+        return tubingID;
+    }
+
+    public void setTubingID(double tubingID) {
+        this.tubingID = tubingID;
+        this.tubingCrossSectionalArea = (Math.PI / 4) * (pow(this.tubingOD, 2) - pow(this.tubingID,2));
+    }
+
+    public double getTubingOD() {
+        return tubingOD;
+    }
+
+    public void setTubingOD(double tubingOD) {
+        this.tubingOD = tubingOD;
+        this.tubingCrossSectionalArea = (Math.PI / 4) * (pow(this.tubingOD, 2) - pow(tubingID,2));
+
+    }
+
+    public void setDampingFactor(int i, double c) {
+        this.c[i] = c;
+    }
+
+    public double getDampingFactor(int i){ return c[i]; }
+
+    public void setRodLength(int i, double rodLength) {
+        this.rodLength[i] = rodLength;
+    }
+
+    public double getRodLength(int i){ return rodLength[i]; }
+
+    public void setRodDiameter(int i, double rodDiameter) {
+        this.rodDiameter[i] = rodDiameter;
+    }
+
+    public double getRodDiameter(int i){ return rodDiameter[i]; }
+
+    public void setRodYM(int i, String material) {
+
+        if (material.toLowerCase().equals("steel")) rodYM[i] = YM_STEEL;
+        else if (material.toLowerCase().equals("fiberglass")) rodYM[i] = YM_FIBERGLASS;
+
+    }
+
+    public double getRodYM(int i){ return rodYM[i]; }
+
+    public String getRodMaterial(int i){
+        if(rodYM[i] == YM_STEEL)
+            return "steel";
+        if(rodYM[i] == YM_FIBERGLASS)
+            return "fiberglass";
+        return "unknown";
+    }
+
+    public double getStructuralRating() {
+        return structuralRating;
+    }
+
+    public void setStructuralRating(double structuralRating) {
+        this.structuralRating = structuralRating;
+    }
+
+    public static double lookupRodWeightPerFoot(double i_ym, double i_diam) {
+        double wtPerFt;
+        if (i_ym == YM_STEEL) {
+            if (i_diam <= 2 && i_diam > 1.75) {
+                wtPerFt = 10.7;
+            } else if (i_diam <= 1.75 && i_diam > 1.65) {
+                wtPerFt = 8.2;
+            } else if (i_diam <= 1.65 && i_diam > 1.5) {
+                wtPerFt = 7;
+            } else if (i_diam <= 1.5 && i_diam > 1.375) {
+                wtPerFt = 6;
+            } else if (i_diam <= 1.375 && i_diam > 1.125) {
+                wtPerFt = 5;
+            } else if (i_diam <= 1.125 && i_diam > 1) {
+                wtPerFt = 3.676;
+            } else if (i_diam <= 1 && i_diam > 0.875) {
+                wtPerFt = 2.904;
+            } else if (i_diam <= 0.875 && i_diam > 0.75) {
+                wtPerFt = 2.224;
+            } else if (i_diam <= 0.75 && i_diam > 0.625) {
+                wtPerFt = 1.634;
+            } else if (i_diam <= 0.625 && i_diam > 0.5) {
+                wtPerFt = 1.13;
+            } else if (i_diam <= 0.5) {
+                wtPerFt = 0.72;
+            } else {
+                wtPerFt = 0;
+            }
+        } else if (i_ym == YM_FIBERGLASS) {
+            if (i_diam <= 1.25 && i_diam > 1.125) {
+                wtPerFt = 1.2879;
+            } else if (i_diam <= 1.125 && i_diam > 1) {
+                wtPerFt = 1.09;
+            } else if (i_diam <= 1 && i_diam > 0.875) {
+                wtPerFt = 0.8188;
+            } else if (i_diam <= 0.875 && i_diam > 0.75) {
+                wtPerFt = 0.6108;
+            } else if (i_diam <= 0.75) {
+                wtPerFt = 0.484;
+            } else {
+                wtPerFt = 0;
+            }
+        } else {
+            wtPerFt = 0;
+        }
+        return wtPerFt;
+    };
+
+    public void parseJSONFile(String jsonFilename){
+        JSONParser parser = new JSONParser();
+        try {
+            Object obj = parser.parse(new FileReader(jsonFilename));
+            JSONObject well = (JSONObject) obj;
+
+            Object newDeltaT = well.get("deltaT");
+            if (newDeltaT != null) dt = (Double) newDeltaT;
+
+            Object newPumpDiameter = well.get("pumpDiameter");
+            if (newPumpDiameter != null) setPumpDiameter((Double) newPumpDiameter);
+
+            Object newFluidGradient = well.get("fluidGradient");
+            if (newFluidGradient != null) fluidGradient = (Double) newFluidGradient;
+
+            Object newTubingID = well.get("tubingID");
+            if (newTubingID != null) setTubingID((Double) newTubingID);
+
+            Object newTubingOD = well.get("tubingOD");
+            if (newTubingOD != null) setTubingOD((Double) newTubingOD);
+
+            Object newTubingAnchorDepth = well.get("tubingAnchorDepth");
+            if (newTubingAnchorDepth != null) tubingAnchorDepth = (Double) newTubingAnchorDepth;
+
+            Object newStructuralRating = well.get("structuralRating");
+            if (newStructuralRating != null) structuralRating = (Double) newStructuralRating;
+
+            Object newStuffingBoxFriction = well.get("stuffingBoxFriction");
+            if (newStuffingBoxFriction != null) setSbfriction((Double) newStuffingBoxFriction);
+
+            Object newTubingHeadPressure = well.get("tubingOD");
+            if (newTubingHeadPressure != null) setTubingOD((Double) newTubingHeadPressure);
+
+            JSONArray tapers = (JSONArray) well.get("tapers");
+            numTapers = tapers.size();
+            for (int i = 0; i < numTapers; i++){
+                int currentTaperNum = i + 1;
+                JSONObject taperObj = (JSONObject) tapers.get(i);
+
+                Object newLength = taperObj.get("length");
+                if (newLength != null) setRodLength(currentTaperNum, (Double) newLength);
+
+                Object newDiameter = taperObj.get("diameter");
+                if (newDiameter != null) setRodDiameter(currentTaperNum, (Double) newDiameter);
+
+                Object newMaterial = taperObj.get("material");
+                System.out.println("found material " + (String) newMaterial);
+                if (newMaterial != null) setRodYM(currentTaperNum, (String) newMaterial);
+
+                Object newDampingFactor = taperObj.get("dampingFactor");
+                if (newDampingFactor != null) setDampingFactor(currentTaperNum, (Double) newDampingFactor);
+            }
+
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        } catch (ParseException e) {
+            e.printStackTrace();
+        }
+
+    }
+
+    public void printTapers(){
+        System.out.println("=== INPUT PARAMETERS ===");
+        System.out.println("DeltaT: " + getDt());
+        System.out.println("Fluid Gradient: " + getFluidGradient());
+        System.out.println("Pump Diameter: " + getPumpDiameter());
+        System.out.println("Stuffing Box Friction: " + getSbfriction());
+        System.out.println("Structural Rating: " + getStructuralRating());
+        System.out.println("Tubing Anchor Depth: " + getTubingAnchorDepth());
+        System.out.println("Tubing Head Pressure: " + getTubingHeadPressure());
+        System.out.println("Tubing ID: " + getTubingID());
+        System.out.println("Tubing OD: " + getTubingOD());
+        System.out.println("Number of Tapers: " + getNumTapers());
+        System.out.println("");
+
+        for(int i = 1; i <= numTapers; i++){
+            System.out.printf("=== Taper %d  === \n", i);
+            System.out.println("Rod Length: " + getRodLength(i));
+            System.out.println("Rod Diameter: " + getRodDiameter(i));
+            System.out.println("Rod Damping Factor: " + getDampingFactor(i));
+            System.out.println("Rod Material: " + getRodMaterial(i));
+            System.out.println("Rod Young's Modulus: " + getRodYM(i));
+            System.out.println("");
+        }
+
+
+    };
+
+    public void updateTapers(){
+        nT1 = numTapers + 1;
+
+        // start by setting everything to 0
+        a[0] = 0.0;
+        area[0] = 0.0;
+        area[numTapers + 1] = 0.0;
+        pressure[0] = tubingHeadPressure;
+        buoyantForce[0] = 0.0;
+        stretch[0] = 0.0;
+        weightData[0] = 0.0;
+        annularForceData[0] = 0.0;
+        force[0] = 0.0;
+        alpha[0] = 0.0;
+        xOverA[0] = 0.0;
+        factor[0] = 0.0;
+        lagIndex[0] = 0;
+        lengthRequired[0] = 0;
+        centerPoint[0] = 0;
+        rodDepth[0] = 0.0;
+        rodWeightAir[0] = 0.0;
+        rodWeightFluid[0] = 0.0;
+        buoyantForceTotal = 0.0;
+        weightDataTotal = 0.0;
+        annularForceDataTotal = 0.0;
+        rodDepthTotal = 0.0;
+        rodWeightAirTotal = 0.0;
+        rodWeightFluidTotal = 0.0;
+
+        for(int i = 1; i < nT1; i++){
+            rodWeightPerFoot[i] = lookupRodWeightPerFoot(rodYM[i], rodDiameter[i]);
+        }
+
+        for (int area_i = 1; area_i < nT1; area_i++)
+        {
+            area[area_i] = (Math.PI / 4) * pow(rodDiameter[area_i], 2);
+        }
+
+        for (int i = 1; i < nT1; i++)
+        {
+            a[i] = 1000 * sqrt(32.2 * rodYM[i] * area[i] / rodWeightPerFoot[i]);
+            rodDepth[i] = rodDepth[i - 1] + rodLength[i];
+            pressure[i] = pressure[i - 1] + fluidGradient * rodLength[i];
+            buoyantForce[i] = pressure[i] * (area[i + 1] - area[i]);
+            rodWeightAir[i] = rodWeightPerFoot[i] * rodLength[i];
+            rodWeightFluid[i] = rodWeightAir[i] + buoyantForce[i];
+        }
+        for (int j = 1; j < nT1; j++)
+        {
+            for (int k = j + 1; k < nT1; k++)
+            {
+                weightData[j] += rodWeightAir[k]; // how much weight is felt on each taper
+            }
+            for (int l = j; l < numTapers; l++)
+            {
+                annularForceData[j] += -buoyantForce[l]; //buoyant force exerted on each taper
+            }
+            force[j] = (-area[numTapers] * pressure[numTapers]) + weightData[j] - annularForceData[j];
+            alpha[j] = (force[j] + rodWeightAir[j]) / (rodYM[j] * pow(10, 6) * area[j]);
+            stretch[j] = (stretch[j - 1] + (alpha[j] * rodLength[j])) - ((rodWeightPerFoot[j] * pow(rodLength[j], 2)) / (2 * rodYM[j] * pow(10, 6) * area[j]));
+        }
+
+        for (int m = 1; m < nT1; m++)
+        {
+            xOverA[m] = rodLength[m] / a[m];
+            lagIndex[m] = (int)(rodLength[m] / (a[m] * dt));
+            factor[m] = (xOverA[m] - lagIndex[m] * dt) / dt;
+            centerPoint[m] = lagIndex[m] + 2;
+            lengthRequired[m] = 2 * (lagIndex[m] + 1) + 1;
+        }
+
+        for (int t = 0; t < nT1; t++)
+        {
+            buoyantForceTotal += buoyantForce[t];
+            rodWeightAirTotal += rodWeightAir[t];
+            rodWeightFluidTotal += rodWeightFluid[t];
+            rodDepthTotal += rodLength[t];
+            annularForceDataTotal += annularForceData[t];
+            weightDataTotal += weightData[t];
+        }
+
+        theoreticalMaxFluidLoad = fluidGradient* rodDepthTotal* pumpArea;
+        frictionEstimate = 0.10 * rodDepthTotal;
+    }
+
+    private double position(int p)
+    //generate the downhole position of the given rod part
+    {
+        loadBefore = 0;
+        loadAfter = 0;
+        loadBefore3 = 0;
+        loadAfter3 = 0;
+
+        //Temporary Variables
+        double a1 = a[p];
+        double cd = c[p];
+        double fact = factor[p];
+        double rodLengthp = rodLength[p];
+        int lagInd = lagIndex[p];
+        double Y1 = rodYM[p] * pow(10, 6);
+        double A1 = area[p];
+        int centerOfArray = centerPoint[p];
+
+        int iBefore = centerOfArray - lagInd;
+        int iAfter = centerOfArray + lagInd;
+
+        double pumpPOS = 0;
+        //Do work
+        pumpPOS = exp((cd * rodLengthp) / (2 * a1)) * (topPosArray[p][iAfter] + fact * (topPosArray[p][ iAfter + 1] - topPosArray[p][iAfter]));
+        pumpPOS += exp(-(cd * rodLengthp) / (2 * a1)) * (topPosArray[p][iBefore] + fact * (topPosArray[p][iBefore - 1] - topPosArray[p][iBefore]));
+        pumpPOS = pumpPOS / 2;
+        double insideIntegral = 0;
+        int q = 1;
+        while (q < 2 * lagInd - 1)
+        {
+            insideIntegral += dt * (1 / (Y1 * A1)) * (exp(-(cd * (lagInd - q) * dt) / 2) * topLoadArray[p][iBefore + q]);
+            q++;
+        }
+        insideIntegral += 0.5 * dt * (1 / (Y1 * A1)) * (exp(-(cd * lagInd * dt) / 2) * topLoadArray[p][iBefore] + exp(-(cd * (-lagInd) * dt) / 2) * topLoadArray[p][iAfter]);
+
+        loadBefore = exp(-(cd * lagInd * dt) / 2) * topLoadArray[p][iBefore] + fact * (exp(-(cd * (lagInd + 1) * dt) / 2) * topLoadArray[p][iBefore - 1] - exp(-(cd * lagInd * dt) / 2) * topLoadArray[p][iBefore]);
+        loadAfter = exp(-(cd * (-lagInd) * dt) / 2) * topLoadArray[p][iAfter] + fact * (exp(-(cd * (-lagInd - 1) * dt) / 2) * topLoadArray[p][iAfter + 1] - exp(-(cd * (-lagInd) * dt) / 2) * topLoadArray[p][iAfter]);
+        insideIntegral += 0.5 * fact * dt * (1 / (Y1 * A1)) * (loadBefore + exp(-(cd * (lagInd) * dt) / 2) * topLoadArray[p][iBefore]);
+        insideIntegral += 0.5 * fact * dt * (1 / (Y1 * A1)) * (loadAfter + exp(-(cd * (-lagInd) * dt) / 2) * topLoadArray[p][iAfter]);
+        insideIntegral = 0.5 * a1 * insideIntegral;
+        pumpPOS += insideIntegral;
+
+        insideIntegral = 0;
+        int r = 1;
+        while (r < 2 * lagInd - 1)
+        {
+            insideIntegral += dt * (exp(-(cd * lagInd - r) * dt) / 2) * (topPosArray[p][iBefore + r]);
+            r++;
+        }
+        insideIntegral += 0.5 * dt * (exp(-(cd * lagInd * dt) / 2) * topPosArray[p][iBefore] + exp(-(cd * (-lagInd) * dt) / 2) * topPosArray[p][iAfter]);
+        loadBefore3 = exp(-(cd * (lagInd) * dt) / 2) * topPosArray[p][iBefore] + fact * (exp(-(cd * (lagInd + 1) * dt) / 2) * topPosArray[p][iBefore] - exp(-(cd * (lagInd) * dt) / 2) * topPosArray[p][iBefore]);
+        loadAfter3 = exp(-(cd * (-lagInd) * dt) / 2) * topPosArray[p][iAfter] + fact * (exp(-(cd * (-lagInd - 1) * dt) / 2) * topPosArray[p][iAfter] - exp(-(cd * (-lagInd) * dt) / 2) * topPosArray[p][iAfter]);
+        insideIntegral += 0.5 * fact * dt * (loadBefore3 + exp(-(cd * (lagInd) * dt) / 2) * topPosArray[p][iBefore]);
+        insideIntegral += 0.5 * fact * dt * (loadAfter3 + exp(-(cd * (-lagInd) * dt) / 2) * topPosArray[p][iAfter]);
+        insideIntegral = -((cd * rodLengthp) / 4) * (0.5 * (cd / (2 * a1))) * insideIntegral;
+        pumpPOS += insideIntegral;
+        //printf("Position: %f\n", pumpPOS);
+        return pumpPOS;
+    };
+
+
+    private double load(int s)
+    //calculate the downhole load of the given rod part
+    {
+        //temporary variables
+        double a1 = a[s];
+        double cd = c[s];
+        double rodLengths = rodLength[s];
+        int lagInd = lagIndex[s];
+        double Y1 = rodYM[s] * pow(10, 6);
+        double A1 = area[s];
+        int centerOfArray = centerPoint[s];
+
+        int iBefore = centerOfArray - lagInd;
+        int iAfter = centerOfArray + lagInd;
+
+        double pumpLOAD = 0;
+        pumpLOAD = 0.5 * (a1 / (Y1 * A1)) * (1 / a1) * (loadBefore + loadAfter);
+        pumpLOAD += -((cd * rodLengths) / 4) * (0.5 * (cd / (2 * a1))) * (1 / a1) * (loadBefore3 + loadAfter3);
+
+        double firstPart = 0;
+        double pointAfter = (topPosArray[s][iAfter + 1] - topPosArray[s][iAfter - 1]) / (2 * dt);
+        double pointBefore = (topPosArray[s][iBefore + 1] - topPosArray[s][iBefore - 1]) / (2 * dt);
+        firstPart = (exp((cd * rodLengths) / (2 * a1)) * pointAfter - exp(-(cd * rodLengths) / (2 * a1)) * pointBefore) / (2 * a1);
+        firstPart += (cd * exp((cd * rodLengths) / (2 * a1)) * topPosArray[s][iAfter] - cd * exp((-cd * rodLengths) / (2 * a1)) * topPosArray[s][iBefore]) / (4 * a1);
+        pumpLOAD = Y1 * A1 * (firstPart + pumpLOAD);
+        //printf("Load: %f\n", pumpLOAD);
+        return pumpLOAD;
+    };
+
+    public LPStatus calc(double sPosition, double sLoad){
+        boolean useShift = false;
+        int loadMult = 1;
+        int tapersAllowed = 1;
+        double dPosition = 0;
+        double dLoad = 0;
+        int status = BAD_STATUS;
+        for (int ii = 1; ii < lengthRequired[1] + 1; ii++)
+        {
+            topPosArray[1][ii - 1] = topPosArray[1][ii];
+            topLoadArray[1][ii - 1] = topLoadArray[1][ii];
+        }
+        topPosArray[1][lengthRequired[1]] = -(sPosition / 12); //stores current position in feet
+
+        if (sPosition > sPositionPrevious)
+        {
+            topLoadArray[1][lengthRequired[1]] = loadMult * (sLoad - rodWeightFluidTotal) - sbfriction;
+        }
+        else
+        {
+            topLoadArray[1][lengthRequired[1]] = loadMult * (sLoad - rodWeightFluidTotal) + sbfriction;
+        }
+
+        int j = 1;
+        while (j <= tapersAllowed)
+        {
+            count[j]++;
+            if (count[j] >= lengthRequired[j])
+            {
+                if ((j + 1) <= numTapers)
+                {
+                    for (int jj = 2; jj < lengthRequired[j + 1] + 1; jj++)
+                    {
+                        topPosArray[j + 1][jj - 1] = topPosArray[j + 1][jj];
+                        topLoadArray[j + 1][jj - 1] = topLoadArray[j + 1][jj];
+                    }
+                    topPosArray[j + 1][lengthRequired[j + 1]] = position(j);
+                    topLoadArray[j + 1][lengthRequired[j + 1]] = load(j);
+                }
+                else
+                {
+                    if (useShift)
+                    {
+                        dPosition = -12 * (position(j) + stretch[numTapers]);
+                    }
+                    else
+                    {
+                        dPosition = -12 * position(j);
+                    }
+                    dLoad = load(j) + force[numTapers];
+                    status = GOOD_STATUS;
+                }
+                count[j]--;
+                tapersAllowed += 1;
+                if (tapersAllowed > numTapers)
+                {
+                    tapersAllowed = numTapers;
+                }
+            }
+            j++;
+        }
+        LPStatus downholeValues = new LPStatus(dPosition, dLoad, status);
+        return downholeValues;
+    };
+
+    public static void main( String[] args ){
+        Well thisWell = new Well();
+        thisWell.parseJSONFile(args[0]);
+        // thisWell.parseJSONFile("/Users/patrickjmcd/Henry_Pump/poc-java/wellSetup.json");
+        thisWell.printTapers();
+    }
+
+
+}
+
+

src/test/java/com/henrypump/poc/AppTest.java

@@ -0,0 +1,38 @@
+package com.henrypump.poc;
+
+import junit.framework.Test;
+import junit.framework.TestCase;
+import junit.framework.TestSuite;
+
+/**
+ * Unit test for simple App.
+ */
+public class AppTest 
+    extends TestCase
+{
+    /**
+     * Create the test case
+     *
+     * @param testName name of the test case
+     */
+    public AppTest( String testName )
+    {
+        super( testName );
+    }
+
+    /**
+     * @return the suite of tests being tested
+     */
+    public static Test suite()
+    {
+        return new TestSuite( AppTest.class );
+    }
+
+    /**
+     * Rigourous Test :-)
+     */
+    public void testApp()
+    {
+        assertTrue( true );
+    }
+}