Example usage for java.util NoSuchElementException NoSuchElementException

Introduction

In this page you can find the example usage for java.util NoSuchElementException NoSuchElementException.

Prototype

public NoSuchElementException()

Source Link

Document

Constructs a NoSuchElementException with null as its error message string.

Usage

From source file:SortedMultiSet.java

public Iterator<Type> iterator() {
    return new Iterator<Type>() {
        int idx = 0;

        public boolean hasNext() {
            return idx < size;
        }/*from   ww w  . j a va2 s  .  com*/

        public Type next() {
            if (hasNext()) {
                return field[idx++];
            }
            throw new NoSuchElementException();
        }

        public void remove() {
            throw new UnsupportedOperationException();
        }

    };
}

From source file:eu.stratosphere.pact.runtime.resettable.BlockResettableIterator.java

@Override
public T next() {
    if (this.nextElement == null) {
        if (!hasNext()) {
            throw new NoSuchElementException();
        }/*from  ww  w .j  a  va  2 s  .co  m*/
    }

    T out = this.nextElement;
    this.nextElement = null;
    return out;
}

From source file:com.hp.application.automation.tools.octane.tests.TestResultIterator.java

@Override
public JUnitTestResult next() {
    if (!hasNext()) {
        throw new NoSuchElementException();
    }//from www .j a v a2  s .com
    return items.removeFirst();
}

From source file:com.github.jillesvangurp.osm2geojson.OsmBlobIterable.java

@Override
public Iterator<String> iterator() {

    final Iterator<String> it = lineIterable.iterator();
    return new Iterator<String>() {
        String next = null;//from www.  jav  a2 s . c  o  m
        StringBuilder buf = new StringBuilder();

        @Override
        public boolean hasNext() {
            if (next != null) {
                return true;
            } else {
                String line;
                while (it.hasNext() && next == null) {
                    line = it.next();
                    if (line.length() > 0) {
                        String stripped = StringUtils.strip(line);
                        if (stripped.startsWith("<node")) {
                            buf.delete(0, buf.length());
                            buf.append(line);
                            if (!fastEndsWith(stripped, "/>")) {
                                while (!fastEndsWith(StringUtils.strip(line), "</node>")) {
                                    line = it.next();
                                    buf.append(line);
                                }
                            }
                            next = StringUtils.strip(buf.toString());
                        } else if (stripped.startsWith("<way")) {
                            buf.delete(0, buf.length());
                            buf.append(line);
                            if (!fastEndsWith(line, "/>")) {
                                while (!fastEndsWith(StringUtils.strip(line), "</way>")) {
                                    line = it.next();
                                    buf.append(line);
                                }
                            }
                            next = StringUtils.strip(buf.toString());
                        } else if (stripped.startsWith("<relation")) {
                            buf.delete(0, buf.length());
                            buf.append(line);
                            if (!fastEndsWith(line, "/>")) {
                                while (!fastEndsWith(StringUtils.strip(line), "</relation>")) {
                                    line = it.next();
                                    buf.append(line);
                                }
                            }
                            next = StringUtils.strip(buf.toString());
                        }
                    }
                }
                return next != null;
            }
        }

        @Override
        public String next() {
            if (hasNext()) {
                String result = next;
                next = null;
                return result;
            } else {
                throw new NoSuchElementException();
            }
        }

        @Override
        public void remove() {
            throw new UnsupportedOperationException("Remove is not supported");
        }
    };
}

From source file:dk.statsbiblioteket.doms.integration.summa.SummaRecordIterator.java

/**
 * @throws DOMSCommunicationError// ww  w  .  j ava  2 s  .c  om
 *             if the operation fails due to a communication or server
 *             error.
 * @see java.util.Iterator#next()
 */
public Record next() {
    if (log.isTraceEnabled()) {
        log.trace("next(): Entering.");
    }

    // The hasNext() method will ensure that the BaseRecordDescription cache
    // is re-filled if necessary/possible.
    if (!hasNext()) {
        throw new NoSuchElementException();
    }

    // Get the next RecordDescription from the cache.
    final BaseRecordDescription baseRecordDescription = getNextBaseRecordDescription();
    try {
        // Build a Record and return it.
        final Record nextRecord = buildRecord(baseRecordDescription);

        if (log.isTraceEnabled()) {
            log.trace("next(): Returning record: " + nextRecord);
        }
        return nextRecord;
    } catch (ServerOperationFailed serverOperationFailed) {
        // The Record could not be built due to a communication/server
        // error. Push back the BaseRecordDescription and hope for success
        // later.

        pushBackBaseRecordDescription(baseRecordDescription);
        throw new DOMSCommunicationError(
                "next() operation failed for base ID: " + baseRecordDescription.getSummaBaseID(),
                serverOperationFailed);
    }
}

From source file:com.phoenixst.plexus.traversals.PostOrderTraverser.java

public Object next() {
    LOGGER.debug("next():");
    Traverser top = (Traverser) traverserStack.peek();

    LOGGER.debug("  Calling hasNext() on top Traverser.");
    if (!top.hasNext()) {
        LOGGER.debug("  Top Traverser has nothing left to return.");
        if (nodeStack.isEmpty()) {
            throw new NoSuchElementException();
        }/* www  . j a va  2 s.c  o  m*/
        LOGGER.debug("  Popping top Traverser and top node, returning the node.");
        traverserStack.pop();
        return nodeStack.pop();
    }

    while (true) {
        Object node = top.next();
        if (LOGGER.isDebugEnabled()) {
            LOGGER.debug("  Creating new Traverser for " + node + ".");
        }
        top = (Traverser) traverserFactory.transform(node);
        if (!top.hasNext()) {
            LOGGER.debug("  Node is a leaf, return it.");
            return node;
        }
        LOGGER.debug("  Node is not a leaf, push it and push its Traverser.");
        nodeStack.push(node);
        traverserStack.push(top);
    }
}

From source file:la.alsocan.jsonshapeshifter.Transformation.java

/**
 * Iterates through the target schema to look for {@link SchemaNode} still requiring a 
 * binding. This iterates through the nodes of the target schema but skips those which 
 * already have a binding defined as well as <i>object</i> and <i>null</i> nodes (which
 * do not require any binding).<br>
 * <br>/* w  w  w  .  ja va2  s  . com*/
 * When {@link Iterator#hasNext()} returns <code>false</code>, the transformation can 
 * be considered fully defined (and invoking {@link #apply(JsonNode)} is safe).
 * 
 * @return An iterator for all target {@link SchemaNode} still requiring a binding
 */
public Iterator<SchemaNode> toBind() {

    final Iterator<SchemaNode> itNodes = target.iterator();
    return new Iterator<SchemaNode>() {

        private SchemaNode remainingNode = getNextNode();

        @Override
        public boolean hasNext() {
            return remainingNode != null;
        }

        @Override
        public SchemaNode next() {
            if (remainingNode == null) {
                throw new NoSuchElementException();
            }
            SchemaNode toReturn = remainingNode;
            remainingNode = getNextNode();
            return toReturn;
        }

        private SchemaNode getNextNode() {
            SchemaNode node = null;
            do {
                if (!itNodes.hasNext()) {
                    return null;
                }
                node = itNodes.next();
            } while (bindings.containsKey(node) || ENodeType.OBJECT.equals(node.getType())
                    || ENodeType.NULL.equals(node.getType()));
            return node;
        }
    };
}

From source file:data.io.csv.CSVDataReader.java

/**
 * {@inheritDoc}/*from w w  w.  j  av a 2s  . c o  m*/
 */
@Override
public MVDataEntry next() {
    if (!hasNext()) {
        throw new NoSuchElementException();
    }
    // Pop the lookahead record
    MVDataEntry res = nextEntry;
    nextEntry = null;
    // And return it
    return res;
}

From source file:com.boundlessgeo.geoserver.api.controllers.ApiController.java

protected FileItemIterator doFileUpload(final HttpServletRequest request)
        throws FileUploadException, IOException {
    final ServletFileUpload upload = newFileUpload();
    //Delegate FileItemIterator to only return files
    return new FileItemIterator() {
        FileItemIterator delegate = upload.getItemIterator(request);
        FileItemStream next = null;/*from  w w w . j a  v a2 s  .c  o m*/

        @Override
        public boolean hasNext() throws FileUploadException, IOException {
            if (next != null) {
                return true;
            }
            while (delegate.hasNext()) {
                FileItemStream item = delegate.next();
                if (!item.isFormField()) {
                    next = item;
                    break;
                }
            }
            return next != null;
        }

        @Override
        public FileItemStream next() throws FileUploadException, IOException {
            if (hasNext()) {
                FileItemStream current = next;
                next = null;
                return current;
            }
            throw new NoSuchElementException();
        }
    };
}

From source file:com.opengamma.util.timeseries.fast.integer.object.FastMapIntObjectTimeSeries.java

@Override
public T getValueFast(final int time) {
    T value = _map.get(time);/*from  w  w w .jav  a 2s  .c  o  m*/
    if (value == _defaultReturnValue) {
        throw new NoSuchElementException();
    }
    return value;
}