Examples with Iterator java.util.Iterator used on opensource projects

Example 1 with Iterator

use of java.util.Iterator in project camel by apache.

the class PGPDataFormatTest method readSecretKey.

static PGPSecretKey readSecretKey() throws Exception {
    InputStream input = new ByteArrayInputStream(getSecKeyRing());
    PGPSecretKeyRingCollection pgpSec = new PGPSecretKeyRingCollection(PGPUtil.getDecoderStream(input), new BcKeyFingerprintCalculator());
    @SuppressWarnings("rawtypes") Iterator keyRingIter = pgpSec.getKeyRings();
    while (keyRingIter.hasNext()) {
        PGPSecretKeyRing keyRing = (PGPSecretKeyRing) keyRingIter.next();
        @SuppressWarnings("rawtypes") Iterator keyIter = keyRing.getSecretKeys();
        while (keyIter.hasNext()) {
            PGPSecretKey key = (PGPSecretKey) keyIter.next();
            if (key.isSigningKey()) {
                return key;
            }
        }
    }
    throw new IllegalArgumentException("Can't find signing key in key ring.");
}

Example 2 with Iterator

use of java.util.Iterator in project camel by apache.

the class ElsqlProducer method process.

@Override
public void process(final Exchange exchange) throws Exception {
    final Object data = exchange.getIn().getBody();
    final SqlParameterSource param = new ElsqlSqlMapSource(exchange, data);
    final String sql = elSql.getSql(elSqlName, new SpringSqlParams(param));
    LOG.debug("ElsqlProducer @{} using sql: {}", elSqlName, sql);
    // special for processing stream list (batch not supported)
    final SqlOutputType outputType = getEndpoint().getOutputType();
    if (outputType == SqlOutputType.StreamList) {
        processStreamList(exchange, sql, param);
        return;
    }
    log.trace("jdbcTemplate.execute: {}", sql);
    jdbcTemplate.execute(sql, param, new PreparedStatementCallback<Object>() {

        @Override
        public Object doInPreparedStatement(final PreparedStatement ps) throws SQLException, DataAccessException {
            ResultSet rs = null;
            try {
                boolean isResultSet = false;
                final int expected = ps.getParameterMetaData().getParameterCount();
                if (expected > 0 && batch) {
                    final String sqlForDefaultPreparedStamentStrategy = sql.replaceAll(":", ":\\?");
                    final String preparedQuery = sqlPrepareStatementStrategy.prepareQuery(sqlForDefaultPreparedStamentStrategy, getEndpoint().isAllowNamedParameters(), exchange);
                    final Iterator<?> iterator = exchange.getIn().getBody(Iterator.class);
                    while (iterator != null && iterator.hasNext()) {
                        final Object value = iterator.next();
                        final Iterator<?> i = sqlPrepareStatementStrategy.createPopulateIterator(sqlForDefaultPreparedStamentStrategy, preparedQuery, expected, exchange, value);
                        sqlPrepareStatementStrategy.populateStatement(ps, i, expected);
                        ps.addBatch();
                    }
                }
                // execute the prepared statement and populate the outgoing message
                if (batch) {
                    final int[] updateCounts = ps.executeBatch();
                    int total = 0;
                    for (final int count : updateCounts) {
                        total += count;
                    }
                    exchange.getIn().setHeader(SqlConstants.SQL_UPDATE_COUNT, total);
                } else {
                    isResultSet = ps.execute();
                    if (isResultSet) {
                        rs = ps.getResultSet();
                        // preserve headers first, so we can override the SQL_ROW_COUNT header
                        exchange.getOut().getHeaders().putAll(exchange.getIn().getHeaders());
                        final SqlOutputType outputType = getEndpoint().getOutputType();
                        log.trace("Got result list from query: {}, outputType={}", rs, outputType);
                        if (outputType == SqlOutputType.SelectList) {
                            final List<?> data = getEndpoint().queryForList(rs, true);
                            // for noop=true we still want to enrich with the row count header
                            if (getEndpoint().isNoop()) {
                                exchange.getOut().setBody(exchange.getIn().getBody());
                            } else if (getEndpoint().getOutputHeader() != null) {
                                exchange.getOut().setBody(exchange.getIn().getBody());
                                exchange.getOut().setHeader(getEndpoint().getOutputHeader(), data);
                            } else {
                                exchange.getOut().setBody(data);
                            }
                            exchange.getOut().setHeader(SqlConstants.SQL_ROW_COUNT, data.size());
                        } else if (outputType == SqlOutputType.SelectOne) {
                            final Object data = getEndpoint().queryForObject(rs);
                            if (data != null) {
                                // for noop=true we still want to enrich with the row count header
                                if (getEndpoint().isNoop()) {
                                    exchange.getOut().setBody(exchange.getIn().getBody());
                                } else if (getEndpoint().getOutputHeader() != null) {
                                    exchange.getOut().setBody(exchange.getIn().getBody());
                                    exchange.getOut().setHeader(getEndpoint().getOutputHeader(), data);
                                } else {
                                    exchange.getOut().setBody(data);
                                }
                                exchange.getOut().setHeader(SqlConstants.SQL_ROW_COUNT, 1);
                            } else {
                                if (getEndpoint().isNoop()) {
                                    exchange.getOut().setBody(exchange.getIn().getBody());
                                } else if (getEndpoint().getOutputHeader() != null) {
                                    exchange.getOut().setBody(exchange.getIn().getBody());
                                }
                                exchange.getOut().setHeader(SqlConstants.SQL_ROW_COUNT, 0);
                            }
                        } else {
                            throw new IllegalArgumentException("Invalid outputType=" + outputType);
                        }
                    } else {
                        // if we are here, there isResultSet is false. This can happen only if we are doing an update operation or there is no result.
                        // we can simply add the updateCount in this case.
                        exchange.getOut().setHeader(SqlConstants.SQL_UPDATE_COUNT, ps.getUpdateCount());
                    }
                }
            } finally {
                closeResultSet(rs);
            }
            return null;
        }
    });
}

Example 3 with Iterator

use of java.util.Iterator in project antlrworks by antlr.

the class XJMainMenuBar method buildWindowMenu_.

private void buildWindowMenu_() {
    Iterator iterator = XJApplication.shared().getWindows().iterator();
    int count = 0;
    while (iterator.hasNext()) {
        XJWindow window = (XJWindow) iterator.next();
        if (window.shouldAppearsInWindowMenu()) {
            XJMenuItemCheck item = buildMenuItemCheck(window.getTitle(), count < 10 ? KeyEvent.VK_0 + count : -1, MI_WINDOW + count);
            item.setSelected(window.isActive());
            menuWindow.addItem(item);
            count++;
        }
    }
    if (count == 0) {
        XJMenuItem item = new XJMenuItem(XJLocalizable.getXJString("NoWindows"), MI_NO_WINDOW, null);
        item.setEnabled(false);
        menuWindow.addItem(item);
    }
}

Example 4 with Iterator

use of java.util.Iterator in project camel by apache.

the class ExpressionBuilder method skipFirstExpression.

/**
     * Returns an expression that skips the first element
     */
public static Expression skipFirstExpression(final Expression expression) {
    return new ExpressionAdapter() {

        public Object evaluate(Exchange exchange) {
            Object value = expression.evaluate(exchange, Object.class);
            Iterator it = exchange.getContext().getTypeConverter().tryConvertTo(Iterator.class, exchange, value);
            if (it != null) {
                // skip first
                it.next();
                return it;
            } else {
                return value;
            }
        }

        @Override
        public String toString() {
            return "skipFirst(" + expression + ")";
        }
    };
}

Example 5 with Iterator

use of java.util.Iterator in project camel by apache.

the class UnmarshalProcessor method process.

public boolean process(Exchange exchange, AsyncCallback callback) {
    ObjectHelper.notNull(dataFormat, "dataFormat");
    InputStream stream = null;
    Object result = null;
    try {
        stream = exchange.getIn().getMandatoryBody(InputStream.class);
        // lets setup the out message before we invoke the dataFormat so that it can mutate it if necessary
        Message out = exchange.getOut();
        out.copyFrom(exchange.getIn());
        result = dataFormat.unmarshal(exchange, stream);
        if (result instanceof Exchange) {
            if (result != exchange) {
                // it's not allowed to return another exchange other than the one provided to dataFormat
                throw new RuntimeCamelException("The returned exchange " + result + " is not the same as " + exchange + " provided to the DataFormat");
            }
        } else if (result instanceof Message) {
            // the dataformat has probably set headers, attachments, etc. so let's use it as the outbound payload
            exchange.setOut((Message) result);
        } else {
            out.setBody(result);
        }
    } catch (Throwable e) {
        // remove OUT message, as an exception occurred
        exchange.setOut(null);
        exchange.setException(e);
    } finally {
        // The Iterator will close the stream itself
        if (!(result instanceof Iterator)) {
            IOHelper.close(stream, "input stream");
        }
    }
    callback.done(true);
    return true;
}