| /******************************************************************************* |
| * Copyright (c) 2000, 2010 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.compiler.env; |
| |
| import org.eclipse.jdt.core.compiler.CharOperation; |
| import org.eclipse.jdt.core.compiler.IProblem; |
| |
| /** |
| * Definition of a set of access rules used to flag forbidden references to non API code. |
| */ |
| public class AccessRuleSet { |
| |
| private AccessRule[] accessRules; |
| public byte classpathEntryType; // one of AccessRestriction#COMMAND_LINE, LIBRARY, PROJECT |
| public String classpathEntryName; |
| |
| /** |
| * Make a new set of access rules. |
| * @param accessRules the access rules to be contained by the new set |
| * @param classpathEntryType one of {@link AccessRestriction#COMMAND_LINE}, |
| * {@link AccessRestriction#LIBRARY}, {@link AccessRestriction#PROJECT} |
| * that tells the access restrictions how to render the classpath entry |
| * @param classpathEntryName a user-readable name for the classpath entry |
| */ |
| public AccessRuleSet(AccessRule[] accessRules, byte classpathEntryType, String classpathEntryName) { |
| this.accessRules = accessRules; |
| this.classpathEntryType = classpathEntryType; |
| this.classpathEntryName = classpathEntryName; |
| } |
| |
| /** |
| * @see java.lang.Object#equals(java.lang.Object) |
| */ |
| public boolean equals(Object object) { |
| if (this == object) |
| return true; |
| if (!(object instanceof AccessRuleSet)) |
| return false; |
| AccessRuleSet otherRuleSet = (AccessRuleSet) object; |
| if (this.classpathEntryType != otherRuleSet.classpathEntryType || |
| this.classpathEntryName == null && otherRuleSet.classpathEntryName != null || |
| ! this.classpathEntryName.equals(otherRuleSet.classpathEntryName)) { |
| return false; |
| } |
| int rulesLength = this.accessRules.length; |
| if (rulesLength != otherRuleSet.accessRules.length) return false; |
| for (int i = 0; i < rulesLength; i++) |
| if (!this.accessRules[i].equals(otherRuleSet.accessRules[i])) |
| return false; |
| return true; |
| } |
| |
| public AccessRule[] getAccessRules() { |
| return this.accessRules; |
| } |
| |
| /** |
| * Select the first access rule which is violated when accessing a given type, |
| * or null if no 'non accessible' access rule applies. |
| * @param targetTypeFilePath the target type file path, formed as: |
| * "org/eclipse/jdt/core/JavaCore" |
| * @return the first access restriction that applies if any, null else |
| */ |
| public AccessRestriction getViolatedRestriction(char[] targetTypeFilePath) { |
| for (int i = 0, length = this.accessRules.length; i < length; i++) { |
| AccessRule accessRule = this.accessRules[i]; |
| if (CharOperation.pathMatch(accessRule.pattern, targetTypeFilePath, |
| true/*case sensitive*/, '/')) { |
| switch (accessRule.getProblemId()) { |
| case IProblem.ForbiddenReference: |
| case IProblem.DiscouragedReference: |
| return new AccessRestriction(accessRule, this.classpathEntryType, this.classpathEntryName); |
| default: |
| return null; |
| } |
| } |
| } |
| return null; |
| } |
| |
| public int hashCode() { |
| final int prime = 31; |
| int result = 1; |
| result = prime * result + hashCode(this.accessRules); |
| result = prime * result + ((this.classpathEntryName == null) ? 0 : this.classpathEntryName.hashCode()); |
| result = prime * result + this.classpathEntryType; |
| return result; |
| } |
| |
| private int hashCode(AccessRule[] rules) { |
| final int prime = 31; |
| if (rules == null) |
| return 0; |
| int result = 1; |
| for (int i = 0, length = rules.length; i < length; i++) { |
| result = prime * result + (rules[i] == null ? 0 : rules[i].hashCode()); |
| } |
| return result; |
| } |
| |
| public String toString() { |
| return toString(true/*wrap lines*/); |
| } |
| |
| public String toString(boolean wrap) { |
| StringBuffer buffer = new StringBuffer(200); |
| buffer.append("AccessRuleSet {"); //$NON-NLS-1$ |
| if (wrap) |
| buffer.append('\n'); |
| for (int i = 0, length = this.accessRules.length; i < length; i++) { |
| if (wrap) |
| buffer.append('\t'); |
| AccessRule accessRule = this.accessRules[i]; |
| buffer.append(accessRule); |
| if (wrap) |
| buffer.append('\n'); |
| else if (i < length-1) |
| buffer.append(", "); //$NON-NLS-1$ |
| } |
| buffer.append("} [classpath entry: "); //$NON-NLS-1$ |
| buffer.append(this.classpathEntryName); |
| buffer.append("]"); //$NON-NLS-1$ |
| return buffer.toString(); |
| } |
| |
| } |