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Spring Cloud Contract Shaded Dependencies
/*
* 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.eclipse.aether.util.filter;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Objects;
import java.util.Set;
import org.eclipse.aether.artifact.Artifact;
import org.eclipse.aether.graph.Dependency;
import org.eclipse.aether.graph.DependencyFilter;
import org.eclipse.aether.graph.DependencyNode;
import org.eclipse.aether.version.InvalidVersionSpecificationException;
import org.eclipse.aether.version.Version;
import org.eclipse.aether.version.VersionRange;
import org.eclipse.aether.version.VersionScheme;
import static java.util.Objects.requireNonNull;
/**
*/
class AbstractPatternDependencyFilter implements DependencyFilter {
private final Set patterns = new HashSet<>();
private final VersionScheme versionScheme;
/**
* Creates a new filter using the specified patterns.
*
* @param patterns The include patterns, may be {@code null} or empty to include no artifacts.
*/
AbstractPatternDependencyFilter(final String... patterns) {
this(null, patterns);
}
/**
* Creates a new filter using the specified patterns.
*
* @param versionScheme To be used for parsing versions/version ranges. If {@code null} and pattern specifies a
* range no artifact will be included.
* @param patterns The include patterns, may be {@code null} or empty to include no artifacts.
*/
AbstractPatternDependencyFilter(final VersionScheme versionScheme, final String... patterns) {
this(versionScheme, patterns == null ? null : Arrays.asList(patterns));
}
/**
* Creates a new filter using the specified patterns.
*
* @param patterns The include patterns, may be {@code null} or empty to include no artifacts.
*/
AbstractPatternDependencyFilter(final Collection patterns) {
this(null, patterns);
}
/**
* Creates a new filter using the specified patterns and {@link VersionScheme} .
*
* @param versionScheme To be used for parsing versions/version ranges. If {@code null} and pattern specifies a
* range no artifact will be included.
* @param patterns The include patterns, may be {@code null} or empty to include no artifacts.
*/
AbstractPatternDependencyFilter(final VersionScheme versionScheme, final Collection patterns) {
if (patterns != null) {
this.patterns.addAll(patterns);
}
this.versionScheme = versionScheme;
}
public boolean accept(final DependencyNode node, List parents) {
requireNonNull(node, "node cannot be null");
requireNonNull(parents, "parents cannot be null");
final Dependency dependency = node.getDependency();
if (dependency == null) {
return true;
}
return accept(dependency.getArtifact());
}
protected boolean accept(final Artifact artifact) {
for (final String pattern : patterns) {
final boolean matched = accept(artifact, pattern);
if (matched) {
return true;
}
}
return false;
}
private boolean accept(final Artifact artifact, final String pattern) {
final String[] tokens = new String[] {
artifact.getGroupId(), artifact.getArtifactId(), artifact.getExtension(), artifact.getBaseVersion()
};
final String[] patternTokens = pattern.split(":");
// fail immediately if pattern tokens outnumber tokens to match
boolean matched = (patternTokens.length <= tokens.length);
for (int i = 0; matched && i < patternTokens.length; i++) {
matched = matches(tokens[i], patternTokens[i]);
}
return matched;
}
private boolean matches(final String token, final String pattern) {
boolean matches;
// support full wildcard and implied wildcard
if ("*".equals(pattern) || pattern.length() == 0) {
matches = true;
}
// support contains wildcard
else if (pattern.startsWith("*") && pattern.endsWith("*")) {
final String contains = pattern.substring(1, pattern.length() - 1);
matches = (token.contains(contains));
}
// support leading wildcard
else if (pattern.startsWith("*")) {
final String suffix = pattern.substring(1);
matches = token.endsWith(suffix);
}
// support trailing wildcard
else if (pattern.endsWith("*")) {
final String prefix = pattern.substring(0, pattern.length() - 1);
matches = token.startsWith(prefix);
}
// support versions range
else if (pattern.startsWith("[") || pattern.startsWith("(")) {
matches = isVersionIncludedInRange(token, pattern);
}
// support exact match
else {
matches = token.equals(pattern);
}
return matches;
}
private boolean isVersionIncludedInRange(final String version, final String range) {
if (versionScheme == null) {
return false;
} else {
try {
final Version parsedVersion = versionScheme.parseVersion(version);
final VersionRange parsedRange = versionScheme.parseVersionRange(range);
return parsedRange.containsVersion(parsedVersion);
} catch (final InvalidVersionSpecificationException e) {
return false;
}
}
}
@Override
public boolean equals(final Object obj) {
if (this == obj) {
return true;
}
if (obj == null || !getClass().equals(obj.getClass())) {
return false;
}
final AbstractPatternDependencyFilter that = (AbstractPatternDependencyFilter) obj;
return Objects.equals(this.patterns, that.patterns) && Objects.equals(this.versionScheme, that.versionScheme);
}
@Override
public int hashCode() {
int hash = 17;
hash = hash * 31 + patterns.hashCode();
hash = hash * 31 + ((versionScheme == null) ? 0 : versionScheme.hashCode());
return hash;
}
}