Examples of org.json_voltpatches.JSONArray

org.json_voltpatches.JSONArray
A JSONArray is an ordered sequence of values. Its external text form is a string wrapped in square brackets with commas separating the values. The internal form is an object having get and opt methods for accessing the values by index, and put methods for adding or replacing values. The values can be any of these types: Boolean, JSONArray, JSONObject, Number, String, or the JSONObject.NULL object.
The constructor can convert a JSON text into a Java object. The toString method converts to JSON text.
A get method returns a value if one can be found, and throws an exception if one cannot be found. An opt method returns a default value instead of throwing an exception, and so is useful for obtaining optional values.
The generic get() and opt() methods return an object which you can cast or query for type. There are also typed get and opt methods that do type checking and type coercion for you.
The texts produced by the toString methods strictly conform to JSON syntax rules. The constructors are more forgiving in the texts they will accept:
- An extra , (comma) may appear just before the closing bracket.
- The null value will be inserted when there is , (comma) elision.
- Strings may be quoted with ' (single quote).
- Strings do not need to be quoted at all if they do not begin with a quote or single quote, and if they do not contain leading or trailing spaces, and if they do not contain any of these characters: { } [ ] / \ : , = ; # and if they do not look like numbers and if they are not the reserved words true, false, or null.
- Values can be separated by ; (semicolon) as well as by , (comma).
- Numbers may have the 0x- (hex) prefix.
@author JSON.org @version 2009-04-14

    }


    public static Response responseFromJSON(String jsonStr) throws JSONException, IOException {
        Response response = new Response();
        JSONObject jsonObj = new JSONObject(jsonStr);
        JSONArray resultsJson = jsonObj.getJSONArray("results");
        response.results = new VoltTable[resultsJson.length()];
        for (int i = 0; i < response.results.length; i++) {
            JSONObject tableJson = resultsJson.getJSONObject(i);
            response.results[i] =  VoltTable.fromJSONObject(tableJson);
        }
        if (jsonObj.isNull("status") == false)
            response.status = (byte) jsonObj.getInt("status");
        if (jsonObj.isNull("appstatus") == false)

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        response = responseFromJSON(responseJSON);
        assertEquals(ClientResponse.SUCCESS, response.status);


        // check the JSON itself makes sense
        JSONObject jsonObj = new JSONObject(responseJSON);
        JSONArray results = jsonObj.getJSONArray("results");
        assertEquals(4, response.results.length);
        JSONObject table = results.getJSONObject(0);
        JSONArray data = table.getJSONArray("data");
        assertEquals(1, data.length());
        JSONArray row = data.getJSONArray(0);
        assertEquals(1, row.length());
        long value = row.getLong(0);
        assertEquals(1, value);


        // try to pass a string as a date
        java.sql.Timestamp ts = new java.sql.Timestamp(System.currentTimeMillis());
        ts.setNanos(123456000);

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    }


    private List<PartitionPair> parseRanges(JSONObject jsObj) throws JSONException
    {
        ImmutableList.Builder<PartitionPair> builder = ImmutableList.builder();
        JSONArray pairsArray = jsObj.getJSONArray("partitionPairs");


        for (int i = 0; i < pairsArray.length(); i++) {
            JSONObject pairObj = pairsArray.getJSONObject(i);


            builder.add(new PartitionPair(pairObj.getInt("srcPartition"),
                                          pairObj.getInt("destPartition"),
                                          pairObj.getInt("rangeStart"),
                                          pairObj.getInt("rangeEnd")));

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    public MockVoltDB(int clientPort, int adminPort, int httpPort, int drPort)
    {
        try {
            JSONObject obj = new JSONObject();
            JSONArray jsonArray = new JSONArray();
            jsonArray.put("127.0.0.1");
            obj.put("interfaces", jsonArray);
            obj.put("clientPort", clientPort);
            obj.put("adminPort", adminPort);
            obj.put("httpPort", httpPort);
            obj.put("drPort", drPort);

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    public void testLoadQueryPlanTree(String sql) throws JSONException {
        AbstractPlanNode pn = compile(sql);
        PlanNodeTree pnt = new PlanNodeTree(pn);
        String str = pnt.toJSONString();
        System.out.println(str);
        JSONArray jarray = new JSONObject(str)
                .getJSONArray(PlanNodeTree.Members.PLAN_NODES.name());
        PlanNodeTree pnt1 = new PlanNodeTree();
        pnt1.loadFromJSONArray(jarray, getDatabase());
        String str1 = pnt1.toJSONString();
        assertTrue(str.equals(str1));

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        ClusterConfig config = new ClusterConfig(3, 1, 2);
        List<Integer> topology = Arrays.asList(new Integer[] { 0, 1, 2 });
        JSONObject obj = config.getTopology(topology);
        config.validate();
        System.out.println(obj.toString(4));
        JSONArray partitions = obj.getJSONArray("partitions");


        // despite 3 hosts, should only have 1 partition with k-safety of 2
        assertEquals(1, partitions.length());


        // All the execution sites should have the same relative index
        for (int ii = 0; ii < partitions.length(); ii++) {
            JSONObject partition = partitions.getJSONObject(ii);
            assertEquals(0, partition.getInt("partition_id"));
            JSONArray replicas = partition.getJSONArray("replicas");
            assertEquals(3, replicas.length());
            HashSet<Integer> replicasContents = new HashSet<Integer>();
            for (int zz = 0; zz < replicas.length(); zz++) {
                replicasContents.add(replicas.getInt(zz));
            }
            assertTrue(replicasContents.contains(0));
            assertTrue(replicasContents.contains(1));
            assertTrue(replicasContents.contains(2));

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    public static List<Integer> partitionsForHost(JSONObject topo, int hostId) throws JSONException
    {
        List<Integer> partitions = new ArrayList<Integer>();


        JSONArray parts = topo.getJSONArray("partitions");


        for (int p = 0; p < parts.length(); p++) {
            // have an object in the partitions array
            JSONObject aPartition = parts.getJSONObject(p);
            int pid = aPartition.getInt("partition_id");
            JSONArray replicas = aPartition.getJSONArray("replicas");
            for (int h = 0; h < replicas.length(); h++)
            {
                int replica = replicas.getInt(h);
                if (replica == hostId)
                {
                    partitions.add(pid);
                }
            }

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     * @throws JSONException
     */
    public static void addPartitions(JSONObject topo, Multimap<Integer, Integer> partToHost)
        throws JSONException
    {
        JSONArray partitions = topo.getJSONArray("partitions");
        for (Map.Entry<Integer, Collection<Integer>> e : partToHost.asMap().entrySet()) {
            int partition = e.getKey();
            Collection<Integer> hosts = e.getValue();


            JSONObject partObj = new JSONObject();
            partObj.put("partition_id", partition);
            partObj.put("replicas", hosts);


            partitions.put(partObj);
        }
    }

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        InetAddress addr = null;
        int clientPort = VoltDB.DEFAULT_PORT;
        try {
            String localMetadata = VoltDB.instance().getLocalMetadata();
            JSONObject jsObj = new JSONObject(localMetadata);
            JSONArray interfaces = jsObj.getJSONArray("interfaces");
            String iface = interfaces.getString(0);
            addr = InetAddress.getByName(iface);
            clientPort = jsObj.getInt("clientPort");
        } catch (JSONException e) {
            hostLog.info("Failed to get local metadata, falling back to first resolvable IP address.");
        } catch (UnknownHostException e) {

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            e1.printStackTrace();
        }
        JSONObject jobj;
        try {
            jobj = new JSONObject( prettyJson );
            JSONArray jarray =  jobj.getJSONArray("PLAN_NODES");
            Database db = s_singleton.getDatabase();
            pnt.loadFromJSONArray(jarray, db);
        } catch (JSONException e) {
            e.printStackTrace();
        }

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org.voltdb.export.ExportDataSource

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