001 /* 002 * Sonar, open source software quality management tool. 003 * Copyright (C) 2008-2011 SonarSource 004 * mailto:contact AT sonarsource DOT com 005 * 006 * Sonar 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 * Sonar 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 017 * License along with Sonar; if not, write to the Free Software 018 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02 019 */ 020 021 package org.sonar.squid.indexer; 022 023 import org.sonar.squid.api.Query; 024 import org.sonar.squid.api.SourceCode; 025 026 public class QueryByType implements Query { 027 028 private final Class<? extends SourceCode> resourceType; 029 030 public QueryByType(Class<? extends SourceCode> resourceType) { 031 if (resourceType == null) { 032 throw new IllegalStateException("The type of resource can't be null !"); 033 } 034 this.resourceType = resourceType; 035 } 036 037 public boolean match(SourceCode unit) { 038 return unit.isType(resourceType); 039 } 040 041 @Override 042 public boolean equals(Object o) { 043 if (this == o) { 044 return true; 045 } 046 if (!(o instanceof QueryByType)) { 047 return false; 048 } 049 050 QueryByType that = (QueryByType) o; 051 052 if (resourceType != null ? !resourceType.equals(that.resourceType) : that.resourceType != null) { 053 return false; 054 } 055 056 return true; 057 } 058 059 @Override 060 public int hashCode() { 061 return resourceType != null ? resourceType.hashCode() : 0; 062 } 063 }