/*
* 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.ivy.osgi.filter;
import java.util.ArrayList;
import java.util.List;
public abstract class MultiOperatorFilter extends OSGiFilter {
private List<OSGiFilter> subFilters = new ArrayList<OSGiFilter>();
public MultiOperatorFilter() {
// default constructor
}
public MultiOperatorFilter(OSGiFilter[] filters) {
for (int i = 0; i < filters.length; i++) {
OSGiFilter filter = filters[i];
add(filter);
}
}
abstract protected char operator();
@Override
public void append(StringBuffer builder) {
builder.append('(');
builder.append(operator());
for (OSGiFilter filter : subFilters) {
filter.append(builder);
}
builder.append(')');
}
public void add(OSGiFilter subFilter2) {
subFilters.add(subFilter2);
}
public List<OSGiFilter> getSubFilters() {
return subFilters;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
for (OSGiFilter subFilter : subFilters) {
result = prime * result + ((subFilter == null) ? 0 : subFilter.hashCode());
}
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (!(obj instanceof MultiOperatorFilter)) {
return false;
}
MultiOperatorFilter other = (MultiOperatorFilter) obj;
if (subFilters == null) {
if (other.subFilters != null) {
return false;
}
} else if (other.subFilters == null) {
return false;
} else if (subFilters.size() != other.subFilters.size()) {
return false;
} else if (!subFilters.containsAll(other.subFilters)) {
return false;
}
return true;
}
}