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Changed BFS #2

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Changed BFS #2

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53 changes: 29 additions & 24 deletions SmallWorld.java
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Original file line number Diff line number Diff line change
Expand Up @@ -281,25 +281,32 @@ public int getName(String s) {
return Integer.parseInt(m.group(0));
}

public Pattern special = Pattern.compile("[$]search");
public Text isSpecial = new Text("$search $end ");

public void map(Text key, Text values, Context context)
throws IOException, InterruptedException {
Matcher m = textDelimiter.matcher(values.toString());
if ( (getToBeTraversed(key) == 1) && (getHasBeenTraversed(key) == 0) ) {
while (m.find()) {
Boolean search = getToBeTraversed(key) == 1 && hasBeenTraversed(key) == 0;
/*while (m.find()) {
String current = m.group(0);
current = current.substring(0, current.length() - 6);
String newVal = current.toString();
if (getHasBeenTraversed(current) == 0) {
int whatDist = getDistance(key);
newVal = "";
newVal += getName(current);
newVal += " " + (whatDist + 1);
newVal += " 1";
newVal += " 0";
if (special.matches(current)) {
search = true;
}
Text outputValue = new Text();
outputValue.set(newVal);
context.write(key, outputValue);
}*/
if (search) {
while (m.find()) {
String s = m.group(0);
Text t = new Text(s);
context.write(t, isSpecial);
}
} else {
while (m.find()) {
String current = m.group(0);
current = current.substring(0, current.length() - 6);
Text outputValue = new Text(current);
context.write(key, outputValue);
}
}
}
Expand All @@ -318,24 +325,22 @@ public String getName(Text source) {
@Override
public void reduce(Text key, Iterable<Text> values,
Context context) throws IOException, InterruptedException {
HashMap<String, Text> nameToUpdated = new HashMap<String, Text>();
Boolean searchFrom = false;
for (int i = 0; i < values.size(); i += 1) {
String c = values.get(i).toString();
if (c.equals("$search")) {
searchFrom = true;
values.remove(i);
}
}
String k = key.toString();
Text concatText = new Text();
String initialString = "";
for (Text value : values) {

initialString += value.toString() + " $end ";
}
concatText.set(initialString);
//Object[] s = mySuccessors.toArray();
//int size = mySuccessors.size();
//LongWritable[] successors = new LongWritable[size];
//for (int i = 0; i < size; i += 1) {
// successors[i] = (LongWritable) s[i];
//}
//ArrayWritable writableSuccessors = new ArrayWritable(org.apache.hadoop.io.LongWritable, successors);
//Text theName = new Text();
//theName.set(key.toString());
//NodeValue newKey = new NodeValue(theName, -1, mySuccessors);
context.write(key, concatText);
}
}
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