/*
* JBoss, Home of Professional Open Source.
* Copyright 2014 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* 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.jboss.modules.filter;
import java.util.Arrays;
/**
* PathFilter implementation that aggregates multiple other filters.
*
* @author John E. Bailey
* @author <a href="mailto:david.lloyd@redhat.com">David M. Lloyd</a>
*/
final class AggregatePathFilter implements PathFilter {
private final PathFilter[] delegates;
private final boolean any;
private final int hashCode;
/**
* Construct a new instance.
*
* @param any {@code true} if this is an "any" filter, {@code false} if this an "all" filter
* @param delegates the delegate filter list
*/
AggregatePathFilter(final boolean any, final PathFilter... delegates) {
this.any = any;
this.delegates = delegates;
hashCode = Boolean.valueOf(any).hashCode() ^ Arrays.hashCode(delegates);
}
/** {@inheritDoc} */
@Override
public boolean accept(String path) {
for (PathFilter filter : delegates) {
if (filter.accept(path) == any) {
return any;
}
}
return ! any;
}
public int hashCode() {
return hashCode;
}
public boolean equals(final Object obj) {
return obj instanceof AggregatePathFilter && equals((AggregatePathFilter) obj);
}
public boolean equals(final AggregatePathFilter obj) {
return obj != null && obj.any == any && Arrays.equals(obj.delegates, delegates);
}
public String toString() {
final StringBuilder b = new StringBuilder();
b.append(any ? "Any " : "All ").append("of (");
for (int idx = 0; idx < delegates.length; idx++) {
final PathFilter delegate = delegates[idx];
b.append(delegate);
if (idx < delegates.length - 1) {
b.append(',');
}
}
b.append(')');
return b.toString();
}
}