| /* |
| * Copyright 2009-2010 by The Regents of the University of California |
| * Licensed 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 from |
| * |
| * 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 edu.uci.ics.hyracks.algebricks.core.algebra.properties; |
| |
| import edu.uci.ics.hyracks.dataflow.std.file.FileSplit; |
| |
| public class FileSplitDomain implements INodeDomain { |
| |
| private FileSplit[] splits; |
| |
| public FileSplitDomain(FileSplit[] splits) { |
| this.splits = splits; |
| } |
| |
| @Override |
| public Integer cardinality() { |
| return splits.length; |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder sb = new StringBuilder(); |
| sb.append("FileSplitDomain["); |
| boolean fst = true; |
| for (FileSplit fs : splits) { |
| if (fst) { |
| fst = false; |
| } else { |
| sb.append(", "); |
| } |
| sb.append(fs.getNodeName() + ":" + fs.getLocalFile()); |
| } |
| sb.append(']'); |
| return sb.toString(); |
| } |
| |
| @Override |
| public boolean sameAs(INodeDomain domain) { |
| if (!(domain instanceof FileSplitDomain)) { |
| return false; |
| } |
| FileSplitDomain fsd = (FileSplitDomain) domain; |
| if (fsd.splits.length != splits.length) { |
| return false; |
| } |
| // conservative approach... |
| for (int i = 0; i < splits.length; i++) { |
| if (!ncEq(splits[i], fsd.splits[i])) { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| private boolean ncEq(FileSplit fs1, FileSplit fs2) { |
| return fs1.getNodeName().equals(fs2.getNodeName()); |
| } |
| |
| } |