/**
 * Copyright 2013-2014 Guoqiang Chen, Shanghai, China. All rights reserved.
 *
 * Email: subchen@gmail.com
 * URL: http://subchen.github.io/
 *
 * Licensed 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.
 */
package jetbrick.io.resource;

import java.io.File;
import java.io.InputStream;
import java.net.URI;
import java.net.URL;
import jetbrick.lang.Validate;

public class InputStreamResource extends Resource {
    private final InputStream is;

    public InputStreamResource(InputStream is) {
        Validate.notNull(is);
        this.is = is;
    }

    @Override
    public InputStream openStream() {
        return is;
    }

    @Override
    public File getFile() {
        throw new UnsupportedOperationException();
    }

    @Override
    public URI getURI() {
        throw new UnsupportedOperationException();
    }

    @Override
    public URL getURL() {
        throw new UnsupportedOperationException();
    }

    @Override
    public boolean exist() {
        return is != null;
    }

    @Override
    public boolean isDirectory() {
        return false;
    }

    @Override
    public boolean isFile() {
        return false;
    }

    @Override
    public String getFileName() {
        throw new UnsupportedOperationException();
    }

    @Override
    public long length() {
        throw new UnsupportedOperationException();
    }

    @Override
    public long lastModified() {
        throw new UnsupportedOperationException();
    }

    @Override
    public String toString() {
        return "is:" + is.toString();
    }
}