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/*
 * 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: XMLNamespaceEnabledImageFlavor.java 1731775 2016-02-23 01:13:36Z gadams $ */

package org.apache.xmlgraphics.image.loader;

/**
 * Special image flavor subclass which enables the restriction to a particular XML namespace.
 */
public class XMLNamespaceEnabledImageFlavor extends RefinedImageFlavor {

    /** An XML-based SVG image in form of a W3C DOM instance */
    public static final ImageFlavor SVG_DOM = new XMLNamespaceEnabledImageFlavor(
            ImageFlavor.XML_DOM, "http://www.w3.org/2000/svg");

    private String namespace;

    /**
     * Constructs a new image flavor.
     * @param parentFlavor the parent image flavor
     * @param namespace an XML namespace URI refining the parent image flavor
     */
    public XMLNamespaceEnabledImageFlavor(ImageFlavor parentFlavor, String namespace) {
        super(parentFlavor.getName() + ";namespace=" + namespace, parentFlavor);
        this.namespace = namespace;
    }

    /** {@inheritDoc} */
    public String getNamespace() {
        return this.namespace;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }
        if (!super.equals(o)) {
            return false;
        }

        XMLNamespaceEnabledImageFlavor that = (XMLNamespaceEnabledImageFlavor) o;

        if (namespace != null ? !namespace.equals(that.namespace) : that.namespace != null) {
            return false;
        }

        return true;
    }

    @Override
    public int hashCode() {
        int result = super.hashCode();
        result = 31 * result + (namespace != null ? namespace.hashCode() : 0);
        return result;
    }
}