Example usage for com.amazonaws.services.simpledb.model SelectRequest withNextToken

Introduction

In this page you can find the example usage for com.amazonaws.services.simpledb.model SelectRequest withNextToken.

Prototype

public SelectRequest withNextToken(String nextToken) 

Source Link

Document

A string informing Amazon SimpleDB where to start the next list of ItemNames.

Usage

From source file:br.com.ingenieux.mojo.simpledb.cmd.DumpDomainCommand.java

License:Apache License

public boolean execute(DumpDomainContext context) throws Exception {
    SelectRequest selectRequest = new SelectRequest(String.format("SELECT * FROM %s", context.getDomain()));
    SelectResult selectResult = service.select(selectRequest);

    ArrayNode rootNode = mapper.createArrayNode();

    while (!selectResult.getItems().isEmpty()) {
        for (Item item : selectResult.getItems())
            appendResult(rootNode, item);

        if (isBlank(selectResult.getNextToken()))
            break;

        selectResult = service.select(selectRequest.withNextToken(selectResult.getNextToken()));
    }//from   www . ja v  a  2 s . c om

    FileWriter writer = new FileWriter(context.getOutputFile());

    writeData(rootNode, writer);

    IOUtil.close(writer);

    return false;
}

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From source file:com.netflix.simianarmy.aws.SimpleDBRecorder.java

License:Apache License

/**
 * Find events.//ww w  . ja  v a 2 s .c om
 *
 * @param queryMap
 *            the query map
 * @param after
 *            the start time to query for all events after
 * @return the list
 */
protected List<Event> findEvents(Map<String, String> queryMap, long after) {
    StringBuilder query = new StringBuilder(
            String.format("select * from `%s` where region = '%s'", domain, region));
    for (Map.Entry<String, String> pair : queryMap.entrySet()) {
        query.append(String.format(" and %s = '%s'", pair.getKey(), pair.getValue()));
    }
    query.append(String.format(" and eventTime > '%d'", after));
    // always return with most recent record first
    query.append(" order by eventTime desc");

    List<Event> list = new LinkedList<Event>();
    SelectRequest request = new SelectRequest(query.toString());
    request.setConsistentRead(Boolean.TRUE);

    SelectResult result = new SelectResult();
    do {
        result = sdbClient().select(request.withNextToken(result.getNextToken()));
        for (Item item : result.getItems()) {
            Map<String, String> fields = new HashMap<String, String>();
            Map<String, String> res = new HashMap<String, String>();
            for (Attribute attr : item.getAttributes()) {
                if (Keys.KEYSET.contains(attr.getName())) {
                    res.put(attr.getName(), attr.getValue());
                } else {
                    fields.put(attr.getName(), attr.getValue());
                }
            }
            String eid = res.get(Keys.id.name());
            String ereg = res.get(Keys.region.name());
            MonkeyType monkeyType = valueToEnum(MonkeyType.class, res.get(Keys.monkeyType.name()));
            EventType eventType = valueToEnum(EventType.class, res.get(Keys.eventType.name()));
            long eventTime = Long.parseLong(res.get(Keys.eventTime.name()));
            list.add(new BasicRecorderEvent(monkeyType, eventType, ereg, eid, eventTime).addFields(fields));
        }
    } while (result.getNextToken() != null);
    return list;
}

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