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/*
* 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 org.apache.uima.jcas.cas;
import java.util.Collections;
import java.util.Iterator;
import java.util.stream.Stream;
import java.util.stream.StreamSupport;
import org.apache.uima.cas.impl.CASImpl;
import org.apache.uima.cas.impl.TypeImpl;
import org.apache.uima.internal.util.Misc;
import org.apache.uima.jcas.JCas;
public abstract class StringList extends TOP implements CommonList, Iterable<String> {
/* (non-Javadoc)
* @see java.lang.Iterable#iterator()
*/
@Override
public Iterator<String> iterator() {
return Collections.emptyIterator(); // overridden by NonEmptyStringList
}
// Never called.
protected StringList() { // Disable default constructor
}
public StringList(JCas jcas) {
super(jcas);
}
/**
* used by generator
* Make a new AnnotationBase
* @param c -
* @param t -
*/
public StringList(TypeImpl t, CASImpl c) {
super(t, c);
}
public String getNthElement(int i) {
return ((NonEmptyStringList) getNonEmptyNthNode(i)).getHead();
}
public NonEmptyStringList createNonEmptyNode() {
NonEmptyStringList node = new NonEmptyStringList(this._casView.getTypeSystemImpl().stringNeListType, this._casView);
return node;
}
public NonEmptyStringList push(String item) {
return new NonEmptyStringList(this._casView.getJCasImpl(), item, this);
}
@Override
public EmptyStringList emptyList() {
return this._casView.emptyStringList();
}
/**
* Create an StringList from an existing array of Strings
* @param jcas the JCas to use
* @param a the array of Strings to populate the list with
* @return an StringList, with the elements from the array
*/
public static StringList create(JCas jcas, String[] a) {
StringList stringList = jcas.getCasImpl().emptyStringList();
for (int i = a.length - 1; i >= 0; i--) {
stringList = stringList.push(a[i]);
}
return stringList;
}
/**
* @return a stream over this FSList
*/
public Stream<String> stream() {
return StreamSupport.stream(spliterator(), false);
}
public boolean contains(String v) {
StringList node = this;
while (node instanceof NonEmptyStringList) {
NonEmptyStringList n = (NonEmptyStringList) node;
if (Misc.equalStrings(v, n.getHead())) {
return true;
}
node = n.getTail();
}
return false;
}
}