Examples of org.json_voltpatches.JSONObject

org.json_voltpatches.JSONObject
A JSONObject is an unordered collection of name/value pairs. Its external form is a string wrapped in curly braces with colons between the names and values, and commas between the values and names. The internal form is an object having get and opt methods for accessing the values by name, and put methods for adding or replacing values by name. The values can be any of these types: Boolean, JSONArray, JSONObject, Number, String, or the JSONObject.NULL object. A JSONObject constructor can be used to convert an external form JSON text into an internal form whose values can be retrieved with the get and opt methods, or to convert values into a JSON text using the put and toString methods. 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 put methods adds values to an object. For example,
```
 myString = new JSONObject().put("JSON", "Hello, World!").toString();
```
produces the string {"JSON": "Hello, World"}.
The texts produced by the toString methods strictly conform to the JSON syntax rules. The constructors are more forgiving in the texts they will accept:
- An extra , (comma) may appear just before the closing brace.
- 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.
- Keys can be followed by = or => as well as by :.
- Values can be followed by ; (semicolon) as well as by , (comma).
- Numbers may have the 0x- (hex) prefix.
@author JSON.org @version 2010-05-17

    private static void loadFromJSONArray(List<AbstractExpression> starter,
                                          JSONArray jarray,  StmtTableScan tableScan) throws JSONException
    {
        int size = jarray.length();
        for( int i = 0 ; i < size; i++ ) {
            JSONObject tempjobj = jarray.getJSONObject( i );
            starter.add(fromJSONObject(tempjobj, tableScan));
        }
    }

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    @Override
    protected void collectStatsImpl(Connection c, long clientHandle, OpsSelector selector,
            ParameterSet params) throws Exception
    {
        JSONObject obj = new JSONObject();
        obj.put("selector", "SNAPSHOTDELETE");
        String err = null;
        if (selector == OpsSelector.SNAPSHOTDELETE) {
            err = parseParams(params, obj);
        }
        else {
            err = "SnapshotDeleteAgent received non-SNAPSHOTDELETE selector: " + selector.name();
        }
        if (err != null) {
            // Maintain old @SnapshotDelete behavior.
            ColumnInfo[] result_columns = new ColumnInfo[1];
            result_columns[0] = new ColumnInfo("ERR_MSG", VoltType.STRING);
            VoltTable results[] = new VoltTable[] { new VoltTable(result_columns) };
            results[0].addRow(err);
            ClientResponseImpl errorResponse = new ClientResponseImpl(ClientResponse.SUCCESS,
                    ClientResponse.UNINITIALIZED_APP_STATUS_CODE, null, results, err);
            errorResponse.setClientHandle(clientHandle);
            ByteBuffer buf = ByteBuffer.allocate(errorResponse.getSerializedSize() + 4);
            buf.putInt(buf.capacity() - 4);
            errorResponse.flattenToBuffer(buf).flip();
            c.writeStream().enqueue(buf);
            return;
        }
        String subselector = obj.getString("subselector");


        PendingOpsRequest psr =
            new PendingOpsRequest(
                    selector,
                    subselector,

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            JSONStringer stringer = new JSONStringer();
            stringer.object();
            stringer.key("database").value(m_database);
            writeAdvertisementTo(stringer);
            stringer.endObject();
            JSONObject jsObj = new JSONObject(stringer.toString());
            jsonBytes = jsObj.toString(4).getBytes(Charsets.UTF_8);
        } catch (JSONException e) {
            Throwables.propagate(e);
        }


        try (FileOutputStream fos = new FileOutputStream(adFile)) {

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        String overflowPath = adFile.getParent();
        byte data[] = Files.toByteArray(adFile);
        long hsid = -1;
        try {
            JSONObject jsObj = new JSONObject(new String(data, Charsets.UTF_8));


            long version = jsObj.getLong("adVersion");
            if (version != 0) {
                throw new IOException("Unsupported ad file version " + version);
            }
            try {
                hsid = jsObj.getLong("hsId");
                exportLog.info("Found old for export data source file ignoring m_HSId");
            } catch (JSONException jex) {
                hsid = -1;
            }
            m_database = jsObj.getString("database");
            m_generation = jsObj.getLong("generation");
            m_partitionId = jsObj.getInt("partitionId");
            m_signature = jsObj.getString("signature");
            m_signatureBytes = m_signature.getBytes(Constants.UTF8ENCODING);
            m_tableName = jsObj.getString("tableName");
            JSONArray columns = jsObj.getJSONArray("columns");
            for (int ii = 0; ii < columns.length(); ii++) {
                JSONObject column = columns.getJSONObject(ii);
                m_columnNames.add(column.getString("name"));
                int columnType = column.getInt("type");
                m_columnTypes.add(columnType);
                m_columnLengths.add(column.getInt("length"));
            }


            if (jsObj.has("format")) {
                m_format = ExportFormat.valueOf(jsObj.getString("format"));
            } else {

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                        VoltDB.crashLocalVoltDB("Rejoin snapshot request failed: " +
                                resp.getStatusString(), false, null);
                    }


                    try {
                        JSONObject jsObj = new JSONObject(appStatus);
                        txnId = jsObj.getLong("txnId");
                    } catch (JSONException e) {
                        VoltDB.crashLocalVoltDB("Failed to get the rejoin snapshot txnId",
                                                true, e);
                        return;
                    }

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        // Create a valid but meaningless InstanceId to support pre-instanceId checking versions
        InstanceId instanceId = new InstanceId(0, 0);
        int newParitionCount = -1;
        try
        {
            JSONObject digest_detail = SnapshotUtil.CRCCheck(digest, LOG);
            if (digest_detail == null) throw new IOException();
            catalog_crc = digest_detail.getLong("catalogCRC");


            if (digest_detail.has("partitionTransactionIds")) {
                JSONObject pidToTxnId = digest_detail.getJSONObject("partitionTransactionIds");
                @SuppressWarnings("unchecked")
                Iterator<String> it = pidToTxnId.keys();
                while (it.hasNext()) {
                    String pidkey = it.next();
                    Long txnidval = pidToTxnId.getLong(pidkey);
                    pidToTxnMap.put(Integer.valueOf(pidkey), txnidval);
                }
            }


            if (digest_detail.has("instanceId")) {

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            byte[] data = m_zk.getData(VoltZK.restore_snapshot_id, false, null);


            String jsonData = new String(data, Constants.UTF8ENCODING);
            if (!jsonData.equals("{}")) {
                m_hasRestored = true;
                JSONObject jo = new JSONObject(jsonData);
                SnapshotInfo info = new SnapshotInfo(jo);
                m_replayAgent.setSnapshotTxnId(info);
            }
            else {
                m_hasRestored = false;

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                if (node.equals("snapshot_id")) continue;


                byte[] data = null;
                data = m_zk.getData(VoltZK.restore + "/" + node, false, null);
                String jsonData = new String(data, "UTF8");
                JSONObject json = new JSONObject(jsonData);


                long maxTxnId = json.optLong("max", Long.MIN_VALUE);
                if (maxTxnId != Long.MIN_VALUE) {
                    if (clStartTxnId == null || maxTxnId > clStartTxnId) {
                        clStartTxnId = maxTxnId;
                    }
                }
                int remoteRecover = json.getInt("action");
                if (remoteRecover != recover) {
                    String msg = "Database actions are not consistent, please enter " +
                        "the same database action on the command-line.";
                    throw new RuntimeException(msg);
                }


                JSONArray snapInfos = json.getJSONArray("snapInfos");
                int snapInfoCnt = snapInfos.length();
                for (int i=0; i < snapInfoCnt; i++) {
                    JSONObject jsonInfo = snapInfos.getJSONObject(i);
                    SnapshotInfo info = new SnapshotInfo(jsonInfo);
                    Set<SnapshotInfo> fragments = snapshotFragments.get(info.nonce);
                    if (fragments == null) {
                        fragments = new HashSet<SnapshotInfo>();
                        snapshotFragments.put(info.nonce, fragments);

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            instanceId = new InstanceId(jo.getJSONObject("instanceId"));


            JSONArray tables = jo.getJSONArray("tables");
            int cnt = tables.length();
            for (int i=0; i < cnt; i++) {
                JSONObject tableEntry = tables.getJSONObject(i);
                String name = tableEntry.getString("name");
                JSONArray jsonPartitions = tableEntry.getJSONArray("partitions");
                Set<Integer> partSet = new HashSet<Integer>();
                int partCnt = jsonPartitions.length();
                for (int j=0; j < partCnt; j++) {
                    int p = jsonPartitions.getInt(j);
                    partSet.add(p);
                }
                partitions.put(name, partSet);
            }
            JSONObject jsonPtoTxnId = jo.getJSONObject("partitionToTxnId");
            @SuppressWarnings("unchecked")
            Iterator<String> it = jsonPtoTxnId.keys();
            while (it.hasNext()) {
                 String key = it.next();
                 Long val = jsonPtoTxnId.getLong(key);
                 partitionToTxnId.put(Integer.valueOf(key), val);
            }
            JSONArray jdt = jo.getJSONArray("digestTables");
            for (int i = 0; i < jdt.length(); i++) {
                digestTables.add(jdt.getString(i));

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                for (String fileTable : fileTables) {
                    stringer.value(fileTable);
                }
                stringer.endArray();
                stringer.endObject();
                return new JSONObject(stringer.toString());
            } catch (JSONException e) {
                VoltDB.crashLocalVoltDB("Invalid JSON communicate snapshot info.", true, e);
            }
            throw new RuntimeException("impossible.");
        }

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org.voltcore.messaging.HostMessenger

org.voltcore.messaging.SocketJoiner

org.voltcore.utils.InstanceId

org.voltcore.zk.MapCache

org.voltcore.zk.TestMapCache

org.voltdb.AdhocDDLTestBase

org.voltdb.client.Distributer

org.voltdb.ClientInterface

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