Examples of org.apache.hadoop.io.ObjectWritable

org.apache.hadoop.io.ObjectWritable
A polymorphic Writable that writes an instance with it's class name. Handles arrays, strings and primitive types without a Writable wrapper.

    private SearchResultToCDXLineAdapter SRtoCDX =
      new SearchResultToCDXLineAdapter();
    
    public void map(WritableComparable key, Writable value,
        OutputCollector output, Reporter reporter) throws IOException {
      ObjectWritable ow = (ObjectWritable) value;
      ARCRecord rec = (ARCRecord) ow.get();
      String line;
      SearchResult result = ARtoSR.adapt(rec);
      if(result != null) {
        line = SRtoCDX.adapt(result);
        if(line != null) {

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     */
    public void map(Text key, Writable value,
      OutputCollector<Text, ObjectWritable> output, Reporter reporter)
      throws IOException {


      ObjectWritable objWrite = new ObjectWritable();
      objWrite.set(value);
      output.collect(key, objWrite);
    }

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      Node node = null;
      LoopSet loops = null;


      // loop through all values aggregating outlinks, saving node and loopset
      while (values.hasNext()) {
        ObjectWritable write = values.next();
        Object obj = write.get();
        if (obj instanceof Node) {
          node = (Node)obj;
        }
        else if (obj instanceof LinkDatum) {
          outlinks.add(WritableUtils.clone((LinkDatum)obj, conf));

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     */
    public void map(Text key, Writable value,
      OutputCollector<Text, ObjectWritable> output, Reporter reporter)
      throws IOException {


      ObjectWritable objWrite = new ObjectWritable();
      objWrite.set(value);
      output.collect(key, objWrite);
    }

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      Node node = null;
      List<LinkDatum> outlinkList = new ArrayList<LinkDatum>();


      // collect all outlinks and assign node
      while (values.hasNext()) {
        ObjectWritable objWrite = values.next();
        Object obj = objWrite.get();
        if (obj instanceof LinkDatum) {
          outlinkList.add((LinkDatum)obj);
        }
        else if (obj instanceof Node) {
          node = (Node)obj;

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     */
    public void map(Text key, Writable value,
      OutputCollector<Text, ObjectWritable> output, Reporter reporter)
      throws IOException {


      ObjectWritable objWrite = new ObjectWritable();
      Writable cloned = null;
      if (value instanceof LinkDatum) {
        cloned = new Text(((LinkDatum)value).getUrl());
      }
      else {
        cloned = WritableUtils.clone(value, conf);
      }
      objWrite.set(cloned);
      output.collect(key, objWrite);
    }

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      Set<String> outlinkUrls = new LinkedHashSet<String>();
      int numValues = 0;


      // aggregate all routes and outlinks for a given url
      while (values.hasNext()) {
        ObjectWritable next = values.next();
        Object value = next.get();
        if (value instanceof Route) {
          routeList.add(WritableUtils.clone((Route)value, conf));
        }
        else if (value instanceof Text) {
          String outlinkUrl = ((Text)value).toString();

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     */
    public void map(Text key, Writable value,
      OutputCollector<Text, ObjectWritable> output, Reporter reporter)
      throws IOException {


      ObjectWritable objWrite = new ObjectWritable();
      objWrite.set(value);
      output.collect(key, objWrite);
    }

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      Node node = null;
      LoopSet loops = null;


      // aggregate outlinks, assign other values
      while (values.hasNext()) {
        ObjectWritable write = values.next();
        Object obj = write.get();
        if (obj instanceof Node) {
          node = (Node)obj;
        }
        else if (obj instanceof LinkDatum) {
          outlinks.add(WritableUtils.clone((LinkDatum)obj, conf));

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     */
    public void map(Text key, Writable value,
      OutputCollector<Text, ObjectWritable> output, Reporter reporter)
      throws IOException {


      ObjectWritable objWrite = new ObjectWritable();
      objWrite.set(WritableUtils.clone(value, conf));
      output.collect(key, objWrite);
    }

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