/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. 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. For additional information regarding
* copyright in this work, please see the NOTICE file in the top level
* directory of this distribution.
*/
package org.apache.abdera.ext.features;
import java.util.ArrayList;
import java.util.List;
import org.apache.abdera.ext.features.Feature.Status;
import org.apache.abdera.model.Collection;
public class FeatureSelector
extends AbstractSelector
implements Selector {
private static final long serialVersionUID = -8943638085557912175L;
private final Status minimumStatus;
private final List<String> features = new ArrayList<String>();
public FeatureSelector(String... features) {
this(Status.SUPPORTED,features);
}
public FeatureSelector(Status minimumStatus, String... features) {
this.minimumStatus = minimumStatus;
for (String feature : features) this.features.add(feature);
}
public boolean select(Collection collection) {
for (String feature : features) {
Status status = FeaturesHelper.getFeatureStatus(collection, feature);
if (status != null && status.ordinal() >= minimumStatus.ordinal())
return true;
}
return false;
}
public String[] getFeatures() {
return features.toArray(new String[features.size()]);
}
public Status getMinimumStatus() {
return minimumStatus;
}
@Override
public int hashCode() {
final int PRIME = 31;
int result = 1;
result = PRIME * result + ((features == null) ? 0 : features.hashCode());
result = PRIME * result + ((minimumStatus == null) ? 0 : minimumStatus.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) return true;
if (obj == null) return false;
if (getClass() != obj.getClass()) return false;
final FeatureSelector other = (FeatureSelector) obj;
if (features == null) {
if (other.features != null) return false;
} else if (!features.equals(other.features)) return false;
if (minimumStatus == null) {
if (other.minimumStatus != null) return false;
} else if (!minimumStatus.equals(other.minimumStatus)) return false;
return true;
}
}