Commit 5eefc26b authored by feng's avatar feng

Order inversion 4

parent 3814f4f8
......@@ -3,7 +3,7 @@
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......@@ -30,7 +30,7 @@
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......@@ -41,14 +41,14 @@
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......@@ -57,8 +57,8 @@
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......@@ -123,7 +123,7 @@
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......@@ -563,10 +563,10 @@
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......@@ -925,34 +925,34 @@
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......
......@@ -59,6 +59,7 @@ public class OrderInversion extends Configured implements Tool {
// TODO: implement the map method
String line = value.toString();
line.replaceAll("^\\s+", "");
String[] words = line.split("\\s+");
for (String firstWord : words) {
......
......@@ -35,30 +35,24 @@ public class StringToIntMapWritable implements Writable {
public void readFields(DataInput in) throws IOException {
// TODO: implement deserialization
IntWritable sizeWritable = new IntWritable();
sizeWritable.readFields(in);
int size = sizeWritable.get();
// Warning: for efficiency reasons, Hadoop attempts to re-use old instances of
// StringToIntMapWritable when reading new records. Remember to initialize your variables
// inside this function, in order to get rid of old data.
hashMap.clear();
int size = in.readInt();
for (int i = 0; i < size; i++) {
word = new Text();
word.readFields(in); // read the size of word from in
count = new IntWritable();
count.readFields(in);
hashMap.put(word, count);
}
// Warning: for efficiency reasons, Hadoop attempts to re-use old instances of
// StringToIntMapWritable when reading new records. Remember to initialize your variables
// inside this function, in order to get rid of old data.
}
@Override
public void write(DataOutput out) throws IOException {
// TODO: implement serialization
int size = hashMap.size();
IntWritable sizeWritable = new IntWritable(size);
sizeWritable.write(out);
out.writeInt(hashMap.size());
Set<Text> keys = hashMap.keySet();
Iterator iterator = keys.iterator();
while (iterator.hasNext()) {
......
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