URLContent.java

/*
 * URLContent
 */
package gov.usgs.earthquake.product;

import gov.usgs.util.StreamUtils;

import java.io.IOException;
import java.io.InputStream;

import java.net.MalformedURLException;
import java.net.URISyntaxException;
import java.net.URL;

import javax.activation.MimetypesFileTypeMap;

/**
 * Content stored at a URL.
 */
public class URLContent extends AbstractContent {

    /** Used to look up file types. */
    private static MimetypesFileTypeMap MIME_TYPES = new MimetypesFileTypeMap();

    /** The actual content. */
    private URL content;

    /**
     * Create a new URLContent object.
     *
     * @param content
     *            the content available at a URL.
     * @throws URISyntaxException on URI error
     */
    public URLContent(final URL content) throws URISyntaxException {
        this.setContentType(MIME_TYPES.getContentType(content.toURI()
                .toString()));
        this.content = content;
    }

    /**
     * Create a new URLContent object from a FileContent.
     *
     * @param fc
     *            the file content.
     * @throws MalformedURLException if URL error
     */
    public URLContent(final FileContent fc) throws MalformedURLException {
        super(fc);
        this.content = fc.getFile().toURI().toURL();
    }

    /**
     * @return an InputStream for the wrapped content.
     * @throws IOException on IO error
     */
    public InputStream getInputStream() throws IOException {
        return StreamUtils.getURLInputStream(content);
    }

    /**
     * @return the wrapped url.
     */
    public URL getURL() {
        return content;
    }

    /**
     * Free any resources associated with this content.
     */
    public void close() {
        // nothing to free
    }

}