001/* 002 * SonarQube 003 * Copyright (C) 2009-2018 SonarSource SA 004 * mailto:info AT sonarsource DOT com 005 * 006 * This program is free software; you can redistribute it and/or 007 * modify it under the terms of the GNU Lesser General Public 008 * License as published by the Free Software Foundation; either 009 * version 3 of the License, or (at your option) any later version. 010 * 011 * This program is distributed in the hope that it will be useful, 012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014 * Lesser General Public License for more details. 015 * 016 * You should have received a copy of the GNU Lesser General Public License 017 * along with this program; if not, write to the Free Software Foundation, 018 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 019 */ 020package org.sonar.api.batch.fs.internal; 021 022import java.util.stream.StreamSupport; 023import org.sonar.api.batch.fs.FileSystem.Index; 024import org.sonar.api.batch.fs.InputFile; 025 026/** 027 * Partial implementation of {@link OptimizedFilePredicate}. 028 * @since 5.1 029 */ 030public abstract class AbstractFilePredicate implements OptimizedFilePredicate { 031 032 protected static final int DEFAULT_PRIORITY = 10; 033 protected static final int USE_INDEX = 20; 034 035 @Override 036 public Iterable<InputFile> filter(Iterable<InputFile> target) { 037 return () -> StreamSupport.stream(target.spliterator(), false) 038 .filter(this::apply) 039 .iterator(); 040 } 041 042 @Override 043 public Iterable<InputFile> get(Index index) { 044 return filter(index.inputFiles()); 045 } 046 047 @Override 048 public int priority() { 049 return DEFAULT_PRIORITY; 050 } 051 052 @Override 053 public final int compareTo(OptimizedFilePredicate o) { 054 return o.priority() - priority(); 055 } 056 057}