public void map(LongWritable key, Text value, Context context)
throws IOException, InterruptedException {
String cur_file =
((FileSplit) context.getInputSplit()).getPath().getParent().getParent().getName();
String train_file = context.getConfiguration().get("train_file");
if (cur_file.equals(train_file)) {
StringTokenizer st = new StringTokenizer(value.toString());
String word = st.nextToken();
String f_id = st.nextToken();
myKey.set(word);
myVal.set(f_id);
context.write(myKey, myVal);
} else {
StringTokenizer st = new StringTokenizer(value.toString());
String word = st.nextToken();
String f_id = st.nextToken();
StringBuilder builder = new StringBuilder(dlt);
while (st.hasMoreTokens()) {
String filename = st.nextToken();
String tf_idf = st.nextToken();
builder.append(filename);
builder.append(dlt);
builder.append(tf_idf);
builder.append("\t");
}
myKey.set(word);
myVal.set(builder.toString());
context.write(myKey, myVal);
}
}
// specify input and out keys
public void map(
LongWritable key, Text value, OutputCollector<Text, Text> output, Reporter reporter)
throws IOException {
String line = value.toString(); // define new variable to be string
ArrayList<Integer> range = new ArrayList<Integer>();
for (int i = 2000; i <= 2010; i++) {
range.add(i);
}
// String[] inputs = line.split(",(?=([^\"]*\"[^\"]*\")*[^\"]*$)");
String[] inputs = line.split(",");
try {
int year = Integer.parseInt(inputs[165]);
if (range.contains(year)) {
String dur = inputs[3];
String artist_name = inputs[2];
String song_title = inputs[1];
String final_input = artist_name + ',' + dur + ',' + song_title;
Final_Value.set(final_input);
output.collect(Final_Value, dummy);
}
} catch (NumberFormatException e) {
// do nothing
}
}
public void map(
LongWritable key,
Text value,
OutputCollector<IntWritable, DoubleWritable> output,
Reporter reporter)
throws IOException {
/*
* It implements the mapper. It outputs the numbers of weight and updated weights.
*
* Note that the format of intermediate output is <IntWritable, DoubleWritable>,
* because the key is the number of weight (an integer), and the value is the weight's value (double)
*/
inputData = value.toString();
// go through the process
initialize();
getposphase();
getnegphase();
update();
// output the intermediate data
// The <key, value> pairs are <weightID, weightUpdate>
double[][] vishidinc_array = vishidinc.getArray();
for (int i = 0; i < numdims; i++) {
for (int j = 0; j < numhid; j++) {
weightPos.set(i * numhid + j);
weightValue.set(vishidinc_array[i][j]);
output.collect(weightPos, weightValue);
}
}
}
// Identity
public void reduce(Text key, Iterable<Text> values, Context context)
throws IOException, InterruptedException {
System.out.println("I'm in Job1 reduce");
for (Text val : values) {
System.out.println("job1:redInp:-" + val.toString());
context.write(new Text(""), val);
}
}
public void reduce(
Text key,
Iterator<CrawlDatum> values,
OutputCollector<Text, CrawlDatum> output,
Reporter reporter)
throws IOException {
boolean oldSet = false;
boolean injectedSet = false;
while (values.hasNext()) {
CrawlDatum val = values.next();
if (val.getStatus() == CrawlDatum.STATUS_INJECTED) {
injected.set(val);
injected.setStatus(CrawlDatum.STATUS_DB_UNFETCHED);
injectedSet = true;
} else {
old.set(val);
oldSet = true;
}
}
CrawlDatum res = null;
/**
* Whether to overwrite, ignore or update existing records
*
* @see https://issues.apache.org/jira/browse/NUTCH-1405
*/
// Injected record already exists and overwrite but not update
if (injectedSet && oldSet && overwrite) {
res = injected;
if (update) {
LOG.info(key.toString() + " overwritten with injected record but update was specified.");
}
}
// Injected record already exists and update but not overwrite
if (injectedSet && oldSet && update && !overwrite) {
res = old;
old.putAllMetaData(injected);
old.setScore(injected.getScore() != scoreInjected ? injected.getScore() : old.getScore());
old.setFetchInterval(
injected.getFetchInterval() != interval
? injected.getFetchInterval()
: old.getFetchInterval());
}
// Old default behaviour
if (injectedSet && !oldSet) {
res = injected;
} else {
res = old;
}
output.collect(key, res);
}
public void map(
IntWritable key, Text value, OutputCollector<IntWritable, Text> output, Reporter reporter)
throws IOException {
String dataRow = value.toString();
StringTokenizer tk = new StringTokenizer(dataRow);
String label = tk.nextToken();
String image = tk.nextToken();
dataString.set(label + "\t" + image);
output.collect(sameKey, dataString);
}
public void map(LongWritable key, Text value, Context context)
throws IOException, InterruptedException {
// read in a document (point in 58-dimensional space)
List<Double> p = GetPoint(value.toString());
int idxClosestCentoid = IndexOfClosestCentroid(p);
context.write(new IntWritable(idxClosestCentoid), value);
}
@Override
public void map(Object key, Text value, Context context)
throws IOException, InterruptedException {
String line = value.toString();
StringTokenizer tokenizer = new StringTokenizer(line);
int movieId = Integer.parseInt(tokenizer.nextToken());
while (tokenizer.hasMoreTokens()) {
String word = tokenizer.nextToken();
context.write(new Text("1"), new IntWritable(1));
}
}
/*
* Finds a full file and sets it as the value.
*/
public synchronized boolean next(LongWritable key, Text value) throws IOException {
Text line = new Text();
boolean retrieved = true;
String result = "";
value.clear();
while (retrieved) {
retrieved = recordReader.next(key, line);
if (line.toString().length() > 0) {
String lineValue = line.toString();
result += lineValue + "\n";
}
}
value.set(result);
return true;
}
public void reduce(Text key, Iterable<Text> values, Context context)
throws IOException, InterruptedException {
String input[];
double result = 0.0;
/* adds all the values corresponding to a key */
for (Text value : values) {
result += Double.parseDouble(value.toString());
}
context.write(null, new Text(key + "," + Double.toString(result)));
}
/** Implement readFields of Writable */
public void readFields(DataInput in) throws IOException {
this.offset = in.readLong();
this.length = in.readLong();
int numNames = in.readInt();
this.names = new String[numNames];
for (int i = 0; i < numNames; i++) {
Text name = new Text();
name.readFields(in);
names[i] = name.toString();
}
int numHosts = in.readInt();
for (int i = 0; i < numHosts; i++) {
Text host = new Text();
host.readFields(in);
hosts[i] = host.toString();
}
int numTops = in.readInt();
Text path = new Text();
for (int i = 0; i < numTops; i++) {
path.readFields(in);
topologyPaths[i] = path.toString();
}
}
public void reduce(IntWritable key, Iterable<Text> values, Context context)
throws IOException, InterruptedException {
List<Double> newCentroid = null;
int numPoints = 0;
for (Text value : values) {
++numPoints;
List<Double> p = GetPoint(value.toString());
if (newCentroid == null) {
// initialize the new centroid to the first element
newCentroid = new ArrayList<Double>(p);
} else {
for (int i = 0; i < newCentroid.size(); i++) {
newCentroid.set(i, newCentroid.get(i) + p.get(i));
}
}
}
// now the newCentroid contains the sum of all the points
// so to get the average of all the points, we need to
// divide each entry by the total number of points
for (int i = 0; i < newCentroid.size(); i++) {
newCentroid.set(i, newCentroid.get(i) / (double) numPoints);
}
// now create a string containing all the new centroid's coordinates
String s = null;
for (Double d : newCentroid) {
if (s == null) {
s = d.toString();
} else {
s += " " + d.toString();
}
}
newCentroids.add(s);
if (newCentroids.size() == 10) {
WriteNewCentroids(context);
}
// output the centroid ID and the centroid data
context.write(key, new Text(s));
}
public void map(LongWritable key, Text value, Context context)
throws IOException, InterruptedException {
Configuration c = context.getConfiguration();
String s = value.toString();
String input[] = s.split(",");
Text outputkey = new Text();
Text outputvalue = new Text();
double result = 0.0;
/* multiplies matrix and vector entry with matching column value */
result = (Double.parseDouble(input[2])) * (vector.get(Long.parseLong(input[1])));
outputkey.set(input[0]);
outputvalue.set(Double.toString(result));
context.write(outputkey, outputvalue);
}
@Override
public void map(LongWritable key, Text value, Context context)
throws IOException, InterruptedException {
String str = "1\t" + value.toString();
Kvector vector = Kvector.fromString(str);
int code = -1, d = Integer.MAX_VALUE;
for (Kvector e : m_kVectors) {
int t = vector.distance(e);
if (t < d) {
d = t;
code = e.code;
}
}
context.write(new KcodeWritable(code), new Text(str));
}
public void reduce(IntWritable key, Iterable<Text> values, Context context)
throws IOException, InterruptedException {
System.out.println(PREFIX + "Collecting all the matched results");
for (Text val : values) {
String[] tmp =
val.toString()
.split("\\|"); // The \\ here is very important. Cannot use "|" since split()
// need a regex(regular expression), and the vertical bar is
// special character.
System.out.println("filename:" + tmp[0] + " ratio:" + tmp[1]);
String filename = tmp[0];
double ratio = Double.valueOf(tmp[1]);
// Key:filename Value:ratio
context.write(new Text(filename), new DoubleWritable(ratio));
}
}
@Override
public void map(LongWritable key, Text value, Context context)
throws IOException, InterruptedException {
String line = value.toString();
String[] tokens = line.split("\\s");
String hour = new String();
long numRequests = 0;
if (tokens.length > 4) {
// get the project name field
hour = tokens[4];
// get the number of requests field
numRequests = Long.parseLong(tokens[2]);
// output the key, value pairs where the key is a combination of
// project name and datetime and the value is number of requests
context.write(new Text(hour), new LongWritable(numRequests));
}
}
public void map(
LongWritable key,
Text value,
OutputCollector<IntWritable, DoubleWritable> output,
Reporter reporter)
throws IOException {
String line = value.toString();
StringTokenizer tokenizer = new StringTokenizer(line);
int rowIdx = 0;
double xValue = 0;
if (tokenizer.hasMoreTokens()) {
rowIdx = Integer.parseInt(tokenizer.nextToken());
xValue = Double.parseDouble(tokenizer.nextToken());
}
double xResult = (resVec[rowIdx] - (sumVec[rowIdx] * xValue)) / diaVec[rowIdx];
output.collect(new IntWritable(rowIdx), new DoubleWritable(xResult));
}
public void reduce(Text key, Iterable<Text> values, Context context)
throws IOException, InterruptedException {
String[] pair = new String[2];
int count = 0;
for (Text txt : values) {
pair[count] = txt.toString();
count++;
}
// word exists in training
if (count == 2) {
StringTokenizer st_one, st_two;
if (pair[0].contains(dlt)) {
st_one = new StringTokenizer(pair[1]);
st_two = new StringTokenizer(pair[0]);
} else {
st_one = new StringTokenizer(pair[0]);
st_two = new StringTokenizer(pair[1]);
}
// outputting the data
String f_id = st_one.nextToken();
StringBuilder builder = new StringBuilder(dlt);
builder.append(f_id);
builder.append(dlt);
while (st_two.hasMoreTokens()) {
String filename = st_two.nextToken();
String tf_idf = st_two.nextToken();
builder.append(filename);
builder.append(dlt);
builder.append(tf_idf);
builder.append("\t");
}
myVal.set(builder.toString());
context.write(key, myVal);
}
}
/* Finds a full sentence and sets it as the value.
* If the sentence is shorter than the full line, the rest is stored to use later.
*/
public synchronized boolean next(LongWritable key, Text value) throws IOException {
Text line = new Text();
boolean getMore = true;
boolean retrieved = false;
String result = leftovers;
leftovers = "";
value.clear();
while (getMore) {
retrieved = recordReader.next(key, line);
if (retrieved) {
String lineValue = line.toString();
// here, we assume sentences run until the period.
int endOfSentence = lineValue.indexOf('.');
if (endOfSentence == -1) {
result += " " + lineValue;
} else {
result += " " + lineValue.substring(0, endOfSentence + 1);
leftovers = lineValue.substring(endOfSentence + 1);
getMore = false;
}
} else {
getMore = false;
value.set(result);
return false;
}
}
value.set(result);
return true;
}
// The input video files are split into chunks of 64MB here...
public void map(Object key, Text value, Context context)
throws IOException, InterruptedException {
String line = value.toString();
System.out.println("job1:mapInp:-" + line);
String[] info = line.split(" ");
info[0] = info[0].trim();
info[1] = info[1].trim();
String lstfnames = "", fname = "";
try {
Configuration config = new Configuration();
FileSystem hdfs = FileSystem.get(config);
String prefixPath = "", fnm = "";
Pattern x = Pattern.compile("(.*)/(.*)");
Matcher xm = x.matcher(info[0]);
while (xm.find()) {
prefixPath = xm.group(1);
fnm = xm.group(2);
}
String dst = "/home/" + fnm; // dst is path of the file on local system.
hdfs.copyToLocalFile(new Path(info[0]), new Path(dst));
Process p = Runtime.getRuntime().exec("ffmpeg -i " + dst);
String s;
BufferedReader stdError = new BufferedReader(new InputStreamReader(p.getErrorStream()));
Pattern D = Pattern.compile("Duration:[ ]*([0-9]+):([0-9]+):([0-9]+)");
long time = 0; // "time" is the duration of the input video file
long sps = 0; // "sps" is the number of seconds(duration) of each video split
while ((s = stdError.readLine()) != null) {
Matcher md = D.matcher(s);
while (md.find()) {
time =
Long.parseLong(md.group(1)) * 3600
+ Long.parseLong(md.group(2)) * 60
+ Long.parseLong(md.group(3));
}
}
Process p1 = Runtime.getRuntime().exec("du -s " + dst);
BufferedReader stdInput1 = new BufferedReader(new InputStreamReader(p1.getInputStream()));
String s1 = "", size = ""; // "size" is the size of input video file
while ((s1 = stdInput1.readLine()) != null) {
String s11[] = s1.split("\t");
size = s11[0];
}
sps = (64 * 1024) * time / (Long.parseLong(size)); // chunk size is 64MB
String hr, min, sc;
hr = Long.toString((sps / 3600));
min = Long.toString((sps % 3600) / 60);
sc = Long.toString(sps % 60);
if (hr.length() < 2) hr = "0" + hr;
if (min.length() < 2) min = "0" + min;
if (sc.length() < 2) sc = "0" + sc;
String splt = hr + ":" + min + ":" + sc;
String query =
"mencoder -oac copy -ovc copy -ss "; // building query to split the input video file
String app = "", inpExt = "";
Pattern xx = Pattern.compile("(.*)\\.(.*)");
Matcher xxm = xx.matcher(dst);
while (xxm.find()) {
fname = xxm.group(1);
inpExt = xxm.group(2);
}
String[] tmpArr = fname.split("/");
String hdfsFname = "";
long stSrt = 0;
int cnt = 0;
while (true) {
if (stSrt > time) break;
if (stSrt + sps > time) {
long t = time - stSrt;
hr = Long.toString((t / 3600));
min = Long.toString((t % 3600) / 60);
sc = Long.toString(t % 60);
if (hr.length() < 2) hr = "0" + hr;
if (min.length() < 2) min = "0" + min;
if (sc.length() < 2) sc = "0" + sc;
splt = hr + ":" + min + ":" + sc;
}
cnt++;
hr = Long.toString((stSrt / 3600));
min = Long.toString((stSrt % 3600) / 60);
sc = Long.toString(stSrt % 60);
if (hr.length() < 2) hr = "0" + hr;
if (min.length() < 2) min = "0" + min;
if (sc.length() < 2) sc = "0" + sc;
app =
hr
+ ":"
+ min
+ ":"
+ sc
+ " -endPos "
+ splt
+ " "
+ dst
+ " -o "
+ fname
+ "_"
+ Integer.toString(cnt)
+ "."
+ inpExt;
Process p2 = Runtime.getRuntime().exec(query + app);
String ls_str = "";
DataInputStream ls_in = new DataInputStream(p2.getInputStream());
while ((ls_str = ls_in.readLine()) != null) {}
p2.destroy();
String[] tmpArr1 = fnm.split("\\.");
hdfs.copyFromLocalFile(
true,
true,
new Path(fname + "_" + Integer.toString(cnt) + "." + inpExt),
new Path(prefixPath + "/" + tmpArr1[0] + "_" + Integer.toString(cnt) + "." + inpExt));
lstfnames +=
prefixPath + "/" + tmpArr1[0] + "_" + Integer.toString(cnt) + "." + inpExt + " #!# ";
stSrt += sps;
}
Runtime rt1 = Runtime.getRuntime();
String[] cmd1 = {"/bin/bash", "-c", "rm " + dst}; // delete the file after use
Process pr1 = rt1.exec(cmd1);
pr1.waitFor();
lstfnames += "*" + info[1];
context.write(
new Text(fname),
new Text(
lstfnames)); // "fname" contains name of the input video file with
// extension(eg.".avi") removed #### "lstfnames" is a string, contains
// all the names of video splits(concatenated)
System.out.println("lstfnames : " + lstfnames);
} catch (IOException e) {
System.out.println("exception happened - here's what I know: ");
e.printStackTrace();
System.exit(-1);
}
}
public void map(Text key, Text value, Context context)
throws InterruptedException, IOException {
String filename = key.toString();
String json = value.toString();
// Make sure the input is valid
if (!(filename.isEmpty() || json.isEmpty())) {
// Change the json-type feature to Mat-type feature
Mat descriptor = json2mat(json);
if (descriptor != null) {
// Read the query feature from the cache in Hadoop
Mat query_features;
String pathStr = context.getConfiguration().get("featureFilePath");
FileSystem fs = FileSystem.get(context.getConfiguration());
FSDataInputStream fsDataInputStream = fs.open(new Path(pathStr));
StringBuilder sb = new StringBuilder();
// Use a buffer to read the query_feature
int remain = fsDataInputStream.available();
while (remain > 0) {
int read;
byte[] buf = new byte[BUF_SIZE];
read = fsDataInputStream.read(buf, fsDataInputStream.available() - remain, BUF_SIZE);
sb.append(new String(buf, 0, read, StandardCharsets.UTF_8));
remain = remain - read;
System.out.println("remain:" + remain + "\tread:" + read + "\tsb.size:" + sb.length());
}
// Read the query_feature line by line
// Scanner sc = new Scanner(fsDataInputStream, "UTF-8");
// StringBuilder sb = new StringBuilder();
// while (sc.hasNextLine()) {
// sb.append(sc.nextLine());
// }
// String query_json = sb.toString();
// String query_json = new String(buf, StandardCharsets.UTF_8);
String query_json = sb.toString();
fsDataInputStream.close();
query_features = json2mat(query_json);
// Get the similarity of the current database image against the query image
DescriptorMatcher matcher = DescriptorMatcher.create(DescriptorMatcher.FLANNBASED);
MatOfDMatch matches = new MatOfDMatch();
// Ensure the two features have same length of cols (the feature extracted are all 128
// cols(at least in this case))
if (query_features.cols() == descriptor.cols()) {
matcher.match(query_features, descriptor, matches);
DMatch[] dMatches = matches.toArray();
// Calculate the max/min distances
// double max_dist = Double.MAX_VALUE;
// double min_dist = Double.MIN_VALUE;
double max_dist = 0;
double min_dist = 100;
for (int i = 0; i < dMatches.length; i++) {
double dist = dMatches[i].distance;
if (min_dist > dist) min_dist = dist;
if (max_dist < dist) max_dist = dist;
}
// Only distances ≤ threshold are good matches
double threshold = max_dist * THRESHOLD_FACTOR;
// double threshold = min_dist * 2;
LinkedList<DMatch> goodMatches = new LinkedList<DMatch>();
for (int i = 0; i < dMatches.length; i++) {
if (dMatches[i].distance <= threshold) {
goodMatches.addLast(dMatches[i]);
}
}
// Get the ratio of good_matches to all_matches
double ratio = (double) goodMatches.size() / (double) dMatches.length;
System.out.println("*** current_record_filename:" + filename + " ***");
System.out.println("feature:" + descriptor + "\nquery_feature:" + query_features);
System.out.println(
"min_dist of keypoints:" + min_dist + " max_dist of keypoints:" + max_dist);
System.out.println(
"total_matches:" + dMatches.length + "\tgood_matches:" + goodMatches.size());
// System.out.println("type:" + descriptor.type() + " channels:" +
// descriptor.channels() + " rows:" + descriptor.rows() + " cols:" + descriptor.cols());
// System.out.println("qtype:" + query_features.type() + "
// qchannels:" + query_features.channels() + " qrows:" + query_features.rows() + "
// qcols:" + query_features.cols());
System.out.println();
if (ratio > PERCENTAGE_THRESHOLD) {
// Key:1 Value:filename|ratio
context.write(ONE, new Text(filename + "|" + ratio));
// context.write(ONE, new Text(filename + "|" +
// String.valueOf(goodMatches.size())));
}
} else {
System.out.println("The size of the features are not equal");
}
} else {
// a null pointer, do nothing
System.out.println("A broken/null feature:" + filename);
System.out.println();
}
}
}
// ## operation readReactorOutputFile(ReactionModel)
public SystemSnapshot readReactorOutputFile(ReactionModel p_reactionModel) {
// #[ operation readReactorOutputFile(ReactionModel)
try {
// open output file and build the DOM tree
String dir = System.getProperty("RMG.workingDirectory");
String filename = "chemkin/reactorOutput.xml";
File inputFile = new File(filename);
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setValidating(true); // validate the document with the DTD
factory.setIgnoringElementContentWhitespace(true); // ignore whitespace
DocumentBuilder builder = factory.newDocumentBuilder();
Document doc = builder.parse(inputFile);
// get root element and its children
Element root = doc.getDocumentElement();
NodeList rootchildren = root.getChildNodes();
// header is rootchildren.item(0)
// get return message and check for successful run
Element returnmessageElement = (Element) rootchildren.item(1);
Text returnmessageText = (Text) returnmessageElement.getFirstChild();
String returnmessage = returnmessageText.toString();
returnmessage = returnmessage.trim();
if (!returnmessage.contains("SUCCESSFULLY COMPLETED RUN.")) {
System.out.println("External reactor model failed!");
System.out.println("Reactor model error message: " + returnmessage);
System.exit(0);
}
// get outputvalues element and its children
Element outputvaluesElement = (Element) rootchildren.item(2);
NodeList children = outputvaluesElement.getChildNodes();
// get time
Element timeElement = (Element) children.item(0);
Text timeText = (Text) timeElement.getFirstChild();
double time = Double.parseDouble(timeText.getData());
String timeUnits = timeElement.getAttribute("units");
// get systemstate element and its children
Element systemstateElement = (Element) children.item(1);
NodeList states = systemstateElement.getChildNodes();
// get temperature and its units
Element temperatureElement = (Element) states.item(0);
String tempUnits = temperatureElement.getAttribute("units");
Text temperatureText = (Text) temperatureElement.getFirstChild();
double temp = Double.parseDouble(temperatureText.getData());
Temperature T = new Temperature(temp, tempUnits);
// get pressure and its units
Element pressureElement = (Element) states.item(1);
String presUnits = pressureElement.getAttribute("units");
Text pressureText = (Text) pressureElement.getFirstChild();
double pres = Double.parseDouble(pressureText.getData());
Pressure P = new Pressure(pres, presUnits);
// get species amounts (e.g. concentrations)
ArrayList speciesIDs = new ArrayList();
ArrayList amounts = new ArrayList();
ArrayList fluxes = new ArrayList();
String amountUnits = null;
String fluxUnits = null;
// loop thru all the species
// begin at i=2, since T and P take already the first two position of states
int nSpe = (states.getLength() - 2) / 2;
int index = 0;
LinkedHashMap inertGas = new LinkedHashMap();
for (int i = 2; i < nSpe + 2; i++) {
// get amount element and the units
Element amountElement = (Element) states.item(i);
amountUnits = amountElement.getAttribute("units");
Element fluxElement = (Element) states.item(i + nSpe);
fluxUnits = fluxElement.getAttribute("units");
// get speciesid and store in an array list
String thisSpeciesID = amountElement.getAttribute("speciesid");
// get amount (e.g. concentraion) and store in an array list
Text amountText = (Text) amountElement.getFirstChild();
double thisAmount = Double.parseDouble(amountText.getData());
if (thisAmount < 0) {
double aTol = ReactionModelGenerator.getAtol();
// if (Math.abs(thisAmount) < aTol) thisAmount = 0;
// else throw new NegativeConcentrationException("Negative concentration in
// reactorOutput.xml: " + thisSpeciesID);
if (thisAmount < -100.0 * aTol)
throw new NegativeConcentrationException(
"Species "
+ thisSpeciesID
+ " has negative concentration: "
+ String.valueOf(thisAmount));
}
// get amount (e.g. concentraion) and store in an array list
Text fluxText = (Text) fluxElement.getFirstChild();
double thisFlux = Double.parseDouble(fluxText.getData());
if (thisSpeciesID.compareToIgnoreCase("N2") == 0
|| thisSpeciesID.compareToIgnoreCase("Ne") == 0
|| thisSpeciesID.compareToIgnoreCase("Ar") == 0) {
inertGas.put(thisSpeciesID, new Double(thisAmount));
} else {
speciesIDs.add(index, thisSpeciesID);
amounts.add(index, new Double(thisAmount));
fluxes.add(index, new Double(thisFlux));
index++;
}
}
// print results for debugging purposes
/**
* System.out.println(returnmessage); System.out.println("Temp = " + temp + " " + tempUnits);
* System.out.println("Pres = " + pres + " " + presUnits); for (int i = 0; i < amounts.size();
* i++) { System.out.println(speciesIDs.get(i) + " " + amounts.get(i) + " " + amountUnits); }
*/
ReactionTime rt = new ReactionTime(time, timeUnits);
LinkedHashMap speStatus = generateSpeciesStatus(p_reactionModel, speciesIDs, amounts, fluxes);
SystemSnapshot ss = new SystemSnapshot(rt, speStatus, T, P);
ss.inertGas = inertGas;
return ss;
} catch (Exception e) {
System.out.println("Error reading reactor model output: " + e.getMessage());
System.exit(0);
return null;
}
// #]
}
/** Delete the dst files/dirs which do not exist in src */
private static void deleteNonexisting(
FileSystem dstfs,
FileStatus dstroot,
Path dstsorted,
FileSystem jobfs,
Path jobdir,
JobConf jobconf,
Configuration conf)
throws IOException {
if (!dstroot.isDir()) {
throw new IOException(
"dst must be a directory when option "
+ Options.DELETE.cmd
+ " is set, but dst (= "
+ dstroot.getPath()
+ ") is not a directory.");
}
// write dst lsr results
final Path dstlsr = new Path(jobdir, "_distcp_dst_lsr");
final SequenceFile.Writer writer =
SequenceFile.createWriter(
jobfs,
jobconf,
dstlsr,
Text.class,
FileStatus.class,
SequenceFile.CompressionType.NONE);
try {
// do lsr to get all file statuses in dstroot
final Stack<FileStatus> lsrstack = new Stack<FileStatus>();
for (lsrstack.push(dstroot); !lsrstack.isEmpty(); ) {
final FileStatus status = lsrstack.pop();
if (status.isDir()) {
for (FileStatus child : dstfs.listStatus(status.getPath())) {
String relative = makeRelative(dstroot.getPath(), child.getPath());
writer.append(new Text(relative), child);
lsrstack.push(child);
}
}
}
} finally {
checkAndClose(writer);
}
// sort lsr results
final Path sortedlsr = new Path(jobdir, "_distcp_dst_lsr_sorted");
SequenceFile.Sorter sorter =
new SequenceFile.Sorter(
jobfs, new Text.Comparator(), Text.class, FileStatus.class, jobconf);
sorter.sort(dstlsr, sortedlsr);
// compare lsr list and dst list
SequenceFile.Reader lsrin = null;
SequenceFile.Reader dstin = null;
try {
lsrin = new SequenceFile.Reader(jobfs, sortedlsr, jobconf);
dstin = new SequenceFile.Reader(jobfs, dstsorted, jobconf);
// compare sorted lsr list and sorted dst list
final Text lsrpath = new Text();
final FileStatus lsrstatus = new FileStatus();
final Text dstpath = new Text();
final Text dstfrom = new Text();
final FsShell shell = new FsShell(conf);
final String[] shellargs = {"-rmr", null};
boolean hasnext = dstin.next(dstpath, dstfrom);
for (; lsrin.next(lsrpath, lsrstatus); ) {
int dst_cmp_lsr = dstpath.compareTo(lsrpath);
for (; hasnext && dst_cmp_lsr < 0; ) {
hasnext = dstin.next(dstpath, dstfrom);
dst_cmp_lsr = dstpath.compareTo(lsrpath);
}
if (dst_cmp_lsr == 0) {
// lsrpath exists in dst, skip it
hasnext = dstin.next(dstpath, dstfrom);
} else {
// lsrpath does not exist, delete it
String s = new Path(dstroot.getPath(), lsrpath.toString()).toString();
if (shellargs[1] == null || !isAncestorPath(shellargs[1], s)) {
shellargs[1] = s;
int r = 0;
try {
r = shell.run(shellargs);
} catch (Exception e) {
throw new IOException("Exception from shell.", e);
}
if (r != 0) {
throw new IOException(
"\"" + shellargs[0] + " " + shellargs[1] + "\" returns non-zero value " + r);
}
}
}
}
} finally {
checkAndClose(lsrin);
checkAndClose(dstin);
}
}
// Video splts are converted to target format here...
public void map(Object key, Text value, Context context)
throws IOException, InterruptedException {
try {
Configuration config = new Configuration();
FileSystem hdfs = FileSystem.get(config);
String st = value.toString();
st = st.trim();
System.out.println("job2:mapInp:-" + st);
String[] fmt = st.split(" #!# \\*");
String[] lst = fmt[0].split(" #!# ");
String out = "", dlt = "";
int flag = 1;
for (String st1 : lst) {
Pattern x = Pattern.compile("(.*)/(.*)");
Matcher xm = x.matcher(st1);
String prefixPath = "", fnm = "", inpExt = "";
while (xm.find()) {
prefixPath = xm.group(1);
fnm = xm.group(2);
}
String[] tmpArr = fnm.split("\\.");
fnm = tmpArr[0];
inpExt = tmpArr[1];
hdfs.copyToLocalFile(true, new Path(st1), new Path("/home/" + fnm + "." + inpExt));
String fname = "/home/" + fnm;
if (flag == 1) {
flag = 0;
out += prefixPath + "/" + fnm + "." + fmt[1];
} else {
out += " #!# " + prefixPath + "/" + fnm + "." + fmt[1];
}
if (fmt[1].equals("mpg") || fmt[1].equals("mpeg") || fmt[1].equals("mp4")) {
Process p =
Runtime.getRuntime()
.exec(
"mencoder -of mpeg -ovc lavc -lavcopts vcodec=mpeg1video -oac copy "
+ "/home/"
+ fnm
+ "."
+ inpExt
+ " -o "
+ fname
+ "."
+ fmt[1]);
String ls_str = "";
DataInputStream ls_in = new DataInputStream(p.getInputStream());
while ((ls_str = ls_in.readLine()) != null) {}
p.destroy();
dlt += " /home/" + fnm + "." + inpExt;
} else if (fmt[1].equals("avi")) {
Process p =
Runtime.getRuntime()
.exec(
"mencoder -ovc lavc -oac mp3lame -o "
+ fname
+ "."
+ fmt[1]
+ " "
+ "/home/"
+ fnm
+ "."
+ inpExt);
String ls_str = "";
DataInputStream ls_in = new DataInputStream(p.getInputStream());
while ((ls_str = ls_in.readLine()) != null) {}
p.destroy();
dlt += " /home/" + fnm + "." + inpExt;
} else {
// TBD
System.out.println("Unsupported target format!!!!!");
}
hdfs.copyFromLocalFile(
true,
true,
new Path(fname + "." + fmt[1]),
new Path(prefixPath + "/" + fnm + "." + fmt[1]));
}
Runtime rt1 = Runtime.getRuntime();
String[] cmd1 = {"/bin/bash", "-c", "rm" + dlt}; // delete the files after use
Process pr1 = rt1.exec(cmd1);
pr1.waitFor();
System.out.println("Job2 mapOut:" + out);
context.write(new Text(lst[0]), new Text(out));
System.out.println(out);
} catch (IOException e) {
System.out.println("exception happened - here's what I know: ");
e.printStackTrace();
System.exit(-1);
}
}
public void map(
WritableComparable<?> key,
Text value,
OutputCollector<Text, CrawlDatum> output,
Reporter reporter)
throws IOException {
String url = value.toString(); // value is line of text
if (url != null && url.trim().startsWith("#")) {
/* Ignore line that start with # */
return;
}
// if tabs : metadata that could be stored
// must be name=value and separated by \t
float customScore = -1f;
int customInterval = interval;
int fixedInterval = -1;
Map<String, String> metadata = new TreeMap<String, String>();
if (url.indexOf("\t") != -1) {
String[] splits = url.split("\t");
url = splits[0];
for (int s = 1; s < splits.length; s++) {
// find separation between name and value
int indexEquals = splits[s].indexOf("=");
if (indexEquals == -1) {
// skip anything without a =
continue;
}
String metaname = splits[s].substring(0, indexEquals);
String metavalue = splits[s].substring(indexEquals + 1);
if (metaname.equals(nutchScoreMDName)) {
try {
customScore = Float.parseFloat(metavalue);
} catch (NumberFormatException nfe) {
}
} else if (metaname.equals(nutchFetchIntervalMDName)) {
try {
customInterval = Integer.parseInt(metavalue);
} catch (NumberFormatException nfe) {
}
} else if (metaname.equals(nutchFixedFetchIntervalMDName)) {
try {
fixedInterval = Integer.parseInt(metavalue);
} catch (NumberFormatException nfe) {
}
} else metadata.put(metaname, metavalue);
}
}
try {
url = urlNormalizers.normalize(url, URLNormalizers.SCOPE_INJECT);
url = filters.filter(url); // filter the url
} catch (Exception e) {
if (LOG.isWarnEnabled()) {
LOG.warn("Skipping " + url + ":" + e);
}
url = null;
}
if (url == null) {
reporter.getCounter("injector", "urls_filtered").increment(1);
} else { // if it passes
value.set(url); // collect it
CrawlDatum datum = new CrawlDatum();
datum.setStatus(CrawlDatum.STATUS_INJECTED);
// Is interval custom? Then set as meta data
if (fixedInterval > -1) {
// Set writable using float. Flaot is used by AdaptiveFetchSchedule
datum
.getMetaData()
.put(Nutch.WRITABLE_FIXED_INTERVAL_KEY, new FloatWritable(fixedInterval));
datum.setFetchInterval(fixedInterval);
} else {
datum.setFetchInterval(customInterval);
}
datum.setFetchTime(curTime);
// now add the metadata
Iterator<String> keysIter = metadata.keySet().iterator();
while (keysIter.hasNext()) {
String keymd = keysIter.next();
String valuemd = metadata.get(keymd);
datum.getMetaData().put(new Text(keymd), new Text(valuemd));
}
if (customScore != -1) datum.setScore(customScore);
else datum.setScore(scoreInjected);
try {
scfilters.injectedScore(value, datum);
} catch (ScoringFilterException e) {
if (LOG.isWarnEnabled()) {
LOG.warn(
"Cannot filter injected score for url "
+ url
+ ", using default ("
+ e.getMessage()
+ ")");
}
}
reporter.getCounter("injector", "urls_injected").increment(1);
output.collect(value, datum);
}
}
public void write(DataOutput out) throws IOException {
out.writeUTF(leftBigram.toString());
out.writeUTF(rightBigram.toString());
}
// merge the converted files here
public void reduce(Text key, Iterable<Text> values, Context context)
throws IOException, InterruptedException {
System.out.println("I'm in Job2 reduce");
Configuration config = new Configuration();
FileSystem hdfs = FileSystem.get(config);
try {
String out = "";
for (Text t : values) {
out = t.toString();
out = out.trim();
System.out.println("job2:redInp:-" + out);
break;
}
String[] outl = out.split(" #!# ");
Pattern x = Pattern.compile("(.*)/(.*)\\.(.*)");
Matcher xm = x.matcher(outl[0]);
String prefixPath = "", fnm = "", ext = "";
while (xm.find()) {
prefixPath = xm.group(1);
fnm = xm.group(2);
ext = xm.group(3);
}
String foutname = fnm.split("_")[0];
foutname += "." + ext;
String query = "mencoder -oac copy -ovc copy";
int cnt = 0;
for (String st : outl) {
cnt++;
hdfs.copyToLocalFile(
true,
new Path(st),
new Path("/home/" + fnm.split("_")[0] + "_" + Integer.toString(cnt) + "." + ext));
query += " " + "/home/" + fnm.split("_")[0] + "_" + Integer.toString(cnt) + "." + ext;
}
query += " -o " + "/home/" + foutname;
Process p2 =
Runtime.getRuntime().exec(query); // query for merging the video files is executed here
String ls_str = "";
DataInputStream ls_in = new DataInputStream(p2.getInputStream());
while ((ls_str = ls_in.readLine()) != null) {}
p2.destroy();
hdfs.copyFromLocalFile(
true, true, new Path("/home/" + foutname), new Path(prefixPath + "/" + foutname));
cnt = 0;
String dlt1 = "";
for (String st3 : outl) {
cnt++;
dlt1 += " " + "/home/" + fnm.split("_")[0] + "_" + Integer.toString(cnt) + "." + ext;
}
Runtime rt1 = Runtime.getRuntime();
String[] cmd1 = {"/bin/bash", "-c", "rm" + dlt1}; // delete the files after use
Process pr1 = rt1.exec(cmd1);
pr1.waitFor();
context.write(new Text(""), new Text(prefixPath + "/" + foutname));
} catch (IOException e) {
System.out.println("exception happened - here's what I know: ");
e.printStackTrace();
System.exit(-1);
}
}
