/*
 *  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
 *
 *    https://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.grails.core.io;

import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;

import org.springframework.core.io.ByteArrayResource;

/**
 * Hacky version of the ByteArrayResource that implements the {@link
 * #getURL()} method, required for the resource to work with Spring's
 * ServletContextResource.
 *
 * @author pledbrook
 */
public class GrailsByteArrayResource extends ByteArrayResource {

    public GrailsByteArrayResource(byte[] byteArray) {
        super(byteArray);
    }

    public GrailsByteArrayResource(byte[] byteArray, String location) {
        super(byteArray, location);
    }

    /**
     * Overrides the default behaviour to generate a fake "file:" URL
     * so that the resource can be used from a ServletContextResource.
     */
    @Override
    public URL getURL() throws IOException {
        try {
            return new URI("file", null, getDescription(), null).toURL();
        } catch (URISyntaxException e) {
            throw new IOException("Invalid fake file URL: " + getDescription(), e);
        }
    }

    @Override
    public String getFilename() throws IllegalStateException {
        return super.getDescription();
    }
}
