/*
 *  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.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.net.URL;

import org.grails.io.support.Resource;

/**
 * Bridges Grails and Spring Resource APIs
 *
 * @author Graeme Rocher
 * @since 2.2
 */
public class SpringResource implements Resource {
    org.springframework.core.io.Resource springResource;

    public SpringResource(org.springframework.core.io.Resource springResource) {
        this.springResource = springResource;
    }

    public InputStream getInputStream() throws IOException {
        return springResource.getInputStream();
    }

    public boolean exists() {
        return springResource.exists();
    }

    public boolean isReadable() {
        return springResource.isReadable();
    }

    public URL getURL() throws IOException {
        return springResource.getURL();
    }

    public URI getURI() throws IOException {
        return springResource.getURI();
    }

    public File getFile() throws IOException {
        return springResource.getFile();
    }

    public long contentLength() throws IOException {
        return springResource.contentLength();
    }

    public long lastModified() throws IOException {
        return springResource.lastModified();
    }

    public String getFilename() {
        return springResource.getFilename();
    }

    public String getDescription() {
        return springResource.getDescription();
    }

    public Resource createRelative(String relativePath) {
        try {
            return new SpringResource(springResource.createRelative(relativePath));
        } catch (IOException e) {
            return null;
        }
    }

}
