| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 at |
| * |
| * 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 org.apache.sshd.common.util.io; |
| |
| import java.io.File; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.stream.Collectors; |
| |
| import org.apache.sshd.common.util.GenericUtils; |
| import org.apache.sshd.common.util.OsUtils; |
| import org.apache.sshd.common.util.SelectorUtils; |
| import org.apache.sshd.common.util.ValidateUtils; |
| |
| /** |
| * @author <a href="mailto:dev@mina.apache.org">Apache MINA SSHD Project</a> |
| */ |
| public abstract class PathScanningMatcher { |
| /** |
| * Whether or not the file system should be treated as a case sensitive one. |
| */ |
| protected boolean caseSensitive = OsUtils.isUNIX(); |
| |
| /** |
| * The file separator to use to parse paths - default=local O/S separator |
| */ |
| protected String separator = File.separator; |
| |
| /** |
| * The patterns for the files to be included. |
| */ |
| protected List<String> includePatterns; |
| |
| protected PathScanningMatcher() { |
| super(); |
| } |
| |
| /** |
| * <p> |
| * Sets the list of include patterns to use. All '/' and '\' characters are replaced by |
| * <code>File.separatorChar</code>, so the separator used need not match <code>File.separatorChar</code>. |
| * </p> |
| * |
| * <p> |
| * When a pattern ends with a '/' or '\', "**" is appended. |
| * </p> |
| * |
| * @param includes A list of include patterns. May be {@code null}, indicating that all files should be included. If |
| * a non-{@code null} list is given, all elements must be non-{@code null}. |
| */ |
| public void setIncludes(String... includes) { |
| setIncludes(GenericUtils.isEmpty(includes) ? Collections.emptyList() : Arrays.asList(includes)); |
| } |
| |
| /** |
| * @return Un-modifiable list of the inclusion patterns |
| */ |
| public List<String> getIncludes() { |
| return includePatterns; |
| } |
| |
| public void setIncludes(Collection<String> includes) { |
| this.includePatterns = GenericUtils.isEmpty(includes) |
| ? Collections.emptyList() |
| : Collections.unmodifiableList( |
| includes.stream() |
| .map(PathScanningMatcher::normalizePattern) |
| .collect(Collectors.toCollection(() -> new ArrayList<>(includes.size())))); |
| } |
| |
| /** |
| * @return Whether or not the file system should be treated as a case sensitive one. |
| */ |
| public boolean isCaseSensitive() { |
| return caseSensitive; |
| } |
| |
| public void setCaseSensitive(boolean caseSensitive) { |
| this.caseSensitive = caseSensitive; |
| } |
| |
| /** |
| * @return The file separator to use to parse paths - default=local O/S separator |
| */ |
| public String getSeparator() { |
| return separator; |
| } |
| |
| public void setSeparator(String separator) { |
| this.separator = ValidateUtils.checkNotNullAndNotEmpty(separator, "No separator provided"); |
| } |
| |
| /** |
| * Tests whether or not a name matches against at least one include pattern. |
| * |
| * @param name The name to match. Must not be {@code null}. |
| * @return <code>true</code> when the name matches against at least one include pattern, or <code>false</code> |
| * otherwise. |
| */ |
| protected boolean isIncluded(String name) { |
| Collection<String> includes = getIncludes(); |
| if (GenericUtils.isEmpty(includes)) { |
| return false; |
| } |
| |
| boolean cs = isCaseSensitive(); |
| String sep = getSeparator(); |
| for (String include : includes) { |
| if (SelectorUtils.matchPath(include, name, sep, cs)) { |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| /** |
| * Tests whether or not a name matches the start of at least one include pattern. |
| * |
| * @param name The name to match. Must not be {@code null}. |
| * @return <code>true</code> when the name matches against the start of at least one include pattern, or |
| * <code>false</code> otherwise. |
| */ |
| protected boolean couldHoldIncluded(String name) { |
| Collection<String> includes = getIncludes(); |
| if (GenericUtils.isEmpty(includes)) { |
| return false; |
| } |
| |
| boolean cs = isCaseSensitive(); |
| String sep = getSeparator(); |
| for (String include : includes) { |
| if (SelectorUtils.matchPatternStart(include, name, sep, cs)) { |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| /** |
| * Normalizes the pattern, e.g. converts forward and backward slashes to the platform-specific file separator. |
| * |
| * @param pattern The pattern to normalize, must not be {@code null}. |
| * @return The normalized pattern, never {@code null}. |
| */ |
| public static String normalizePattern(String pattern) { |
| pattern = pattern.trim(); |
| |
| if (pattern.startsWith(SelectorUtils.REGEX_HANDLER_PREFIX)) { |
| if (File.separatorChar == '\\') { |
| pattern = GenericUtils.replace(pattern, "/", "\\\\", -1); |
| } else { |
| pattern = GenericUtils.replace(pattern, "\\\\", "/", -1); |
| } |
| } else { |
| pattern = pattern.replace(File.separatorChar == '/' ? '\\' : '/', File.separatorChar); |
| |
| if (pattern.endsWith(File.separator)) { |
| pattern += "**"; |
| } |
| } |
| |
| return pattern; |
| } |
| } |