| /* |
| * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package compiler.compilercontrol.share.method; |
| |
| import java.util.regex.Pattern; |
| |
| /** |
| * Class represents an element of the MethodDescriptor |
| * used as pattern for CompilerCommand method strings |
| */ |
| public abstract class MethodElementType { |
| private static final char[] INVALID_CHARS = { ';', '[', '(', ')', ']', |
| '<', '>'}; |
| protected String element; |
| protected String regexp; |
| protected MethodDescriptor.Separator separator; |
| |
| /** |
| * Constructor |
| */ |
| protected MethodElementType(MethodDescriptor.Separator separator) { |
| this.separator = separator; |
| } |
| |
| /** |
| * Gets element's separator |
| * |
| * @return separator instance |
| */ |
| public MethodDescriptor.Separator getSeparator() { |
| return separator; |
| } |
| |
| /** |
| * Sets separator for this element |
| * |
| * @param separator separator type |
| */ |
| public void setSeparator(MethodDescriptor.Separator separator) { |
| this.separator = separator; |
| } |
| |
| /** |
| * Gets String representation of the element |
| * |
| * @return element string |
| */ |
| public String getElement() { |
| return element; |
| } |
| |
| /** |
| * Sets String representation of the element |
| * |
| * @param element custom string to be used as an element |
| */ |
| public void setElement(String element) { |
| this.element = element; |
| this.regexp = Pattern.quote(element); |
| } |
| |
| /** |
| * Shows that the element is valid according to CompilerControl and JVMS specs |
| * |
| * @return true, if the element is a valid string |
| */ |
| public boolean isValid() { |
| for (char ch : INVALID_CHARS) { |
| if (element.indexOf(ch) != -1) { |
| return false; |
| } |
| } |
| // Check for * usage |
| if (element.equals("**")) { |
| return false; |
| } |
| for (int i = 0; i < element.length(); i++) { |
| char c = element.charAt(i); |
| if (c == '*' && i > 0 && i < element.length() - 1) { |
| // Embedded * isn't allowed |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| /** |
| * Creates pattern of a given type |
| * |
| * @param patternType type of the pattern |
| */ |
| public void setPattern(MethodDescriptor.PatternType patternType) { |
| switch (patternType) { |
| case EXACT: |
| break; |
| case PREFIX: |
| regexp = ".*" + regexp; |
| element = "*" + element; |
| break; |
| case ANY: |
| regexp = ".*"; |
| element = "*"; |
| break; |
| case SUFFIX: |
| regexp = regexp + ".*"; |
| element = element + "*"; |
| break; |
| case SUBSTRING: |
| setPattern(MethodDescriptor.PatternType.PREFIX); |
| setPattern(MethodDescriptor.PatternType.SUFFIX); |
| break; |
| default: |
| throw new IllegalArgumentException("ERROR: wrong pattern type" |
| + patternType); |
| } |
| } |
| |
| /** |
| * Gets regular expression of this element |
| * |
| * @return string representation of regexp |
| */ |
| public String getRegexp() { |
| return regexp; |
| } |
| } |