| /* |
| * 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.tinkerpop.gremlin.process.traversal.step.map; |
| |
| import org.apache.commons.lang3.StringUtils; |
| import org.apache.tinkerpop.gremlin.process.traversal.Traversal; |
| import org.apache.tinkerpop.gremlin.process.traversal.Traverser; |
| import org.apache.tinkerpop.gremlin.process.traversal.step.TraversalParent; |
| import org.apache.tinkerpop.gremlin.process.traversal.step.util.StringLocalStep; |
| import org.apache.tinkerpop.gremlin.process.traversal.traverser.TraverserRequirement; |
| |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Set; |
| |
| /** |
| * Reference implementation for substring step, a mid-traversal step which returns a list of strings created by |
| * splitting the incoming string traverser around the matches of the given separator. A null separator will split the |
| * string by whitespaces. Null values from incoming traversers are not processed and remain as null when returned. |
| * If the incoming traverser is a non-String value then an {@code IllegalArgumentException} will be thrown. |
| * |
| * @author David Bechberger (http://bechberger.com) |
| * @author Yang Xia (http://github.com/xiazcy) |
| */ |
| public final class SplitLocalStep<S, E> extends StringLocalStep<S, E> implements TraversalParent { |
| |
| private final String separator; |
| |
| public SplitLocalStep(final Traversal.Admin traversal, final String separator) { |
| super(traversal); |
| this.separator = separator; |
| } |
| |
| @Override |
| protected E applyStringOperation(String item) { |
| return (E) Arrays.asList((StringUtils.splitByWholeSeparator(item, this.separator))); |
| } |
| |
| @Override |
| public String getStepName() { return "split(local)"; } |
| |
| @Override |
| public int hashCode() { |
| int result = super.hashCode(); |
| result = 31 * result + (null != this.separator ? this.separator.hashCode() : 0); |
| return result; |
| } |
| |
| } |