Examples of org.apache.commons.collections.map.MultiValueMap

Package org.apache.commons.collections.map

Examples of org.apache.commons.collections.map.MultiValueMap

org.apache.commons.collections.map.MultiValueMap
A MultiValueMap decorates another map, allowing it to have more than one value for a key.
A MultiMap is a Map with slightly different semantics. Putting a value into the map will add the value to a Collection at that key. Getting a value will return a Collection, holding all the values put to that key.
This implementation is a decorator, allowing any Map implementation to be used as the base.
In addition, this implementation allows the type of collection used for the values to be controlled. By default, an ArrayList is used, however a Class to instantiate may be specified, or a factory that returns a Collection instance.
Note that MultiValueMap is not synchronized and is not thread-safe. If you wish to use this map from multiple threads concurrently, you must use appropriate synchronization. This class may throw exceptions when accessed by concurrent threads without synchronization. @author James Carman @author Christopher Berry @author James Strachan @author Steve Downey @author Stephen Colebourne @author Julien Buret @author Serhiy Yevtushenko @version $Revision: 646777 $ $Date: 2008-04-10 13:33:15 +0100 (Thu, 10 Apr 2008) $ @since Commons Collections 3.2

                // First, create the HashMap,
                avas = new ArrayList<Ava>();


                // and store the existing Ava into it.
                avas.add( ava );
                avaTypes = new MultiValueMap();
                avaTypes.put( avaType, ava );


                this.ava = null;


                // Now, fall down to the commmon case

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                    rdn.avaTypes = avaTypes;
                    break;


                default:
                    // We must duplicate the treeSet and the hashMap
                    rdn.avaTypes = new MultiValueMap();
                    rdn.avas = new ArrayList<Ava>();


                    for ( Ava currentAva : this.avas )
                    {
                        rdn.avas.add( (Ava) currentAva.clone() );

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                break;


            default:
                avas = new ArrayList<Ava>();


                avaTypes = new MultiValueMap();


                for ( int i = 0; i < nbAvas; i++ )
                {
                    Ava ava = new Ava( schemaManager );
                    ava.readExternal( in );

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  MultiValueMap multipleHits;
  HashMap<String, Node> children;


  Node() {
    uniqueHits = new HashMap<String, DNSServer>();
    multipleHits = new MultiValueMap();
    children = new HashMap<String, Node>();
  }

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        //If a query is not supported, then skip it
        if (!this.allQueries[queryIndex].isSupportedByLibrary(this.DNS_LIB)) {
          continue;
        }


        MultiValueMap nodeChildrenGroupedByResponse = new MultiValueMap();
        for (Object server : serverList) {
          String rsp = ((DNSServer) server).responses[queryIndex];


          rsp = QueryTree.normalizeResponseString(rsp);


          nodeChildrenGroupedByResponse.put(rsp, server);
        }
        //If query can split the group of servers, set up a new child node using the query
        //TODO: Instead of using the first query that can split the servers, use the best ?
        if (nodeChildrenGroupedByResponse.keySet().size() > 1) {
          //System.out.println("Query "+queryIndex+" splits response "+response+" of query "+cur.query+ " into "+nodeChildrenGroupedByResponse.keySet().size() + " parts");


          Node childNode = new Node();
          childNode.query = queryIndex;
          for (Object childResponse : nodeChildrenGroupedByResponse.keySet()) {
            List childServerList = (List) nodeChildrenGroupedByResponse.get(childResponse);
            if (childServerList.size() == 1) {
              childNode.uniqueHits.put((String) childResponse, (DNSServer) childServerList.get(0));
            }
          }


          //Remove the unique-hits from the list of all hits and what remains is multiple hits
          for (Object r : childNode.uniqueHits.keySet()) {
            nodeChildrenGroupedByResponse.remove(r);
          }


          childNode.multipleHits = nodeChildrenGroupedByResponse;
          //cur.multipleHits.remove(response);
          cur.children.put((String) response, childNode);

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   * @return an array of queries that will return unique responses
   */
  static int[] getUniqueQueries(int numServers, DNSServer servers[]) {
    int queries[];
    //Group identical rows together
    MultiValueMap groupedMatrixRows = new MultiValueMap();
    StringBuilder sb = null;
    for (int i = 0; i < NUM_RESPONSES; i++) {
      sb = new StringBuilder(servers[0].responses[i]);
      for (int j = 1; j < numServers; j++) {
        sb.append(servers[j].responses[i]);
      }
      groupedMatrixRows.put(sb.toString(), i);
    }


    //Get the unique row indexes.
    Set matrixRows = groupedMatrixRows.keySet();
    queries = new int[matrixRows.size()];
    int curQ = 0;
    for (Object matrixRow : matrixRows) {
      queries[curQ] = (Integer) ((List) groupedMatrixRows.get((String) matrixRow)).get(0);
      curQ++;
    }


    return queries;
  }

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  }


  void replayLog(List<File> logs) throws IOException {
    int total = 0;
    int count = 0;
    MultiMap transactionMap = new MultiValueMap();
    LOG.info("Starting replay of " + logs);
    for (File log : logs) {
      LOG.info("Replaying " + log);
      LogFile.SequentialReader reader = null;
      try {
        reader = new LogFile.SequentialReader(log);
        Pair<Integer, TransactionEventRecord> entry;
        FlumeEventPointer ptr;
        // for puts the fileId is the fileID of the file they exist in
        // for takes the fileId and offset are pointers to a put
        int fileId = reader.getLogFileID();
        while ((entry = reader.next()) != null) {
          int offset = entry.getLeft();
          TransactionEventRecord record = entry.getRight();
          short type = record.getRecordType();
          long trans = record.getTransactionID();
          if (LOG.isDebugEnabled()) {
            LOG.debug("record.getTimestamp() = " + record.getTimestamp()
                + ", lastCheckpoint = " + lastCheckpoint + ", fileId = "
                + fileId + ", offset = " + offset + ", type = "
                + TransactionEventRecord.getName(type) + ", transaction "
                + trans);
          }
          if (record.getTimestamp() > lastCheckpoint) {
            if (type == TransactionEventRecord.Type.PUT.get()) {
              ptr = new FlumeEventPointer(fileId, offset);
              transactionMap.put(trans, ptr);
            } else if (type == TransactionEventRecord.Type.TAKE.get()) {
              Take take = (Take) record;
              ptr = new FlumeEventPointer(take.getFileID(), take.getOffset());
              transactionMap.put(trans, ptr);
            } else if (type == TransactionEventRecord.Type.ROLLBACK.get()) {
              transactionMap.remove(trans);
            } else if (type == TransactionEventRecord.Type.COMMIT.get()) {
              @SuppressWarnings("unchecked")
              Collection<FlumeEventPointer> pointers = 
                (Collection<FlumeEventPointer>) transactionMap.remove(trans);
              if (pointers != null && pointers.size() > 0) {
                processCommit(((Commit) record).getType(), pointers);
                count += pointers.size();
              }
            } else {

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                will(returnValue(mockClientResponse));


                one(mockClientResponse).setReturnType(String.class);
                allowing(mockClientResponse);


                final MultiValueMap result = new MultiValueMap();
                result.put("Content-Type", "application/json");
                allowing(mockClientResponse).getMetadata();
                will(returnValue(result));
            }


        });

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    @Test
    public void testOverridePreferred() throws Exception
    {
        DefaultAppBloodhound bh = new DefaultAppBloodhound();
        MultiMap overrides = new MultiValueMap();
        overrides.put("properties", new TestDescriptorParserDefault());


        // test with default annotation values
        bh.mergeParserOverrides(overrides);
        assertEquals(1, bh.parserRegistry.size());
        DescriptorParser result = bh.parserRegistry.get("properties");

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    @Test
    public void testBothPreferredWithWeight() throws Exception
    {
        DefaultAppBloodhound bh = new DefaultAppBloodhound();
        MultiMap overrides = new MultiValueMap();
        overrides.put("properties", new TestDescriptorParserDefault());
        overrides.put("properties", new TestDescriptorParserPreferred());


        // test with weigh attribute (we have 3 candidates now)
        bh.mergeParserOverrides(overrides);
        assertEquals(1, bh.parserRegistry.size());
        DescriptorParser result = bh.parserRegistry.get("properties");

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