org.apache.xmlgraphics.image.loader.cache.ImageKey Maven / Gradle / Ivy
/*
* 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.
*/
/* $Id: ImageKey.java 1345683 2012-06-03 14:50:33Z gadams $ */
package org.apache.xmlgraphics.image.loader.cache;
import org.apache.xmlgraphics.image.loader.ImageFlavor;
/**
* Key class for Image instances in the cache.
*/
public class ImageKey {
private String uri;
private org.apache.xmlgraphics.image.loader.ImageFlavor flavor;
/**
* Main constructor.
* @param uri the original URI
* @param flavor the image flavor
*/
public ImageKey(String uri, ImageFlavor flavor) {
if (uri == null) {
throw new NullPointerException("URI must not be null");
}
if (flavor == null) {
throw new NullPointerException("flavor must not be null");
}
this.uri = uri;
this.flavor = flavor;
}
/** {@inheritDoc} */
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((flavor == null) ? 0 : flavor.hashCode());
result = prime * result + ((uri == null) ? 0 : uri.hashCode());
return result;
}
/** {@inheritDoc} */
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final ImageKey other = (ImageKey)obj;
if (!uri.equals(other.uri)) {
return false;
}
if (!flavor.equals(other.flavor)) {
return false;
}
return true;
}
/** {@inheritDoc} */
public String toString() {
return uri + " (" + flavor + ")";
}
}