Add a location type backed by a remote URL

Author: ctrueden

src/main/java/org/scijava/io/URLLocation.java

@@ -0,0 +1,75 @@
+/*
+ * #%L
+ * SciJava Common shared library for SciJava software.
+ * %%
+ * Copyright (C) 2009 - 2015 Board of Regents of the University of
+ * Wisconsin-Madison, Broad Institute of MIT and Harvard, and Max Planck
+ * Institute of Molecular Cell Biology and Genetics.
+ * %%
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ * #L%
+ */
+
+package org.scijava.io;
+
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.URL;
+
+/**
+ * {@link Location} backed by a {@link URL}.
+ *
+ * @author Curtis Rueden
+ */
+public class URLLocation extends AbstractLocation {
+
+	/** The URL backing this location. */
+	private final URL url;
+
+	public URLLocation(final URL url) {
+		this.url = url;
+	}
+
+	// -- URLLocation methods --
+
+	/** Gets the associated {@link URL}. */
+	public URL getURL() {
+		return url;
+	}
+
+	// -- Location methods --
+
+	/**
+	 * Gets the associated {@link URI}, or null if this URL is not formatted
+	 * strictly according to to RFC2396 and cannot be converted to a URI.
+	 */
+	@Override
+	public URI getURI() {
+		try {
+			return getURL().toURI();
+		}
+		catch (final URISyntaxException exc) {
+			return null;
+		}
+	}
+
+}