opennlp.model.SequenceStreamEventStream Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package opennlp.model;
import java.util.Iterator;
/**
* Class which turns a sequence stream into an event stream.
*
*/
public class SequenceStreamEventStream implements EventStream {
private Iterator sequenceIterator;
int eventIndex = -1;
Event[] events;
public SequenceStreamEventStream(SequenceStream sequenceStream) {
this.sequenceIterator = sequenceStream.iterator();
}
public boolean hasNext() {
if (events != null && eventIndex < events.length) {
return true;
}
else {
if (sequenceIterator.hasNext()) {
Sequence s = sequenceIterator.next();
eventIndex = 0;
events = s.getEvents();
return true;
}
else {
return false;
}
}
}
public Event next() {
return events[eventIndex++];
}
public void remove() {
throw new UnsupportedOperationException();
}
}