/
PatternMatcher.java
108 lines (91 loc) · 3.14 KB
/
PatternMatcher.java
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/*
* Copyright 2019 the original author or authors.
*
* Licensed 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.gradle.api.internal.file.pattern;
import java.util.ArrayList;
import java.util.List;
public abstract class PatternMatcher {
public static final PatternMatcher MATCH_ALL = new PatternMatcher() {
@Override
public boolean test(String[] segments, boolean isFile) {
return true;
}
@Override
public PatternMatcher and(PatternMatcher other) {
return other;
}
@Override
public PatternMatcher or(PatternMatcher other) {
return this;
}
};
public abstract boolean test(String[] segments, boolean isFile);
public PatternMatcher and(final PatternMatcher other) {
return new And(PatternMatcher.this, other);
}
public PatternMatcher or(final PatternMatcher other) {
return new Or(PatternMatcher.this, other);
}
public PatternMatcher negate() {
return new PatternMatcher() {
@Override
public boolean test(String[] segments, boolean isFile) {
return !PatternMatcher.this.test(segments, isFile);
}
};
}
private static final class Or extends PatternMatcher {
private final List<PatternMatcher> parts = new ArrayList<PatternMatcher>();
public Or(PatternMatcher patternMatcher, PatternMatcher other) {
parts.add(patternMatcher);
parts.add(other);
}
@Override
public PatternMatcher or(PatternMatcher other) {
parts.add(other);
return this;
}
@Override
public boolean test(String[] segments, boolean isFile) {
for (PatternMatcher part : parts) {
if (part.test(segments, isFile)) {
return true;
}
}
return false;
}
}
private static final class And extends PatternMatcher {
private final List<PatternMatcher> parts = new ArrayList<PatternMatcher>();
public And(PatternMatcher patternMatcher, PatternMatcher other) {
parts.add(patternMatcher);
parts.add(other);
}
@Override
public PatternMatcher and(PatternMatcher other) {
parts.add(other);
return this;
}
@Override
public boolean test(String[] segments, boolean isFile) {
for (PatternMatcher part : parts) {
if (!part.test(segments, isFile)) {
return false;
}
}
return true;
}
}
}