[Polycasso-commit] SF.net SVN: polycasso:[194] trunk/polycasso/src/com/mebigfatguy/polycasso/ URLFetcher.java

[<dbr...@us...>]

Revision: 194
          http://polycasso.svn.sourceforge.net/polycasso/?rev=194&view=rev
Author:   dbrosius
Date:     2009-12-18 04:23:13 +0000 (Fri, 18 Dec 2009)

Log Message:
-----------
split out fetching url data into a separate class and add support for file:// urls

Added Paths:
-----------
    trunk/polycasso/src/com/mebigfatguy/polycasso/URLFetcher.java

Added: trunk/polycasso/src/com/mebigfatguy/polycasso/URLFetcher.java
===================================================================
--- trunk/polycasso/src/com/mebigfatguy/polycasso/URLFetcher.java	                        (rev 0)
+++ trunk/polycasso/src/com/mebigfatguy/polycasso/URLFetcher.java	2009-12-18 04:23:13 UTC (rev 194)
@@ -0,0 +1,75 @@
+/*
+ * polycasso - Cubism Artwork generator
+ * Copyright 2009 MeBigFatGuy.com
+ * Copyright 2009 Dave Brosius
+ * Inspired by work by Roger Alsing
+ * 
+ * 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 com.mebigfatguy.polycasso;
+
+import java.io.BufferedInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.HttpURLConnection;
+import java.net.URL;
+
+import org.apache.commons.io.IOUtils;
+
+/**
+ * manages downloading data from a url
+ */
+public class URLFetcher {
+	
+	/**
+	 * private to avoid construction of this static access only class
+	 */
+	private URLFetcher() {
+	}
+	
+	/**
+	 * fetches the data at a specified url, whether http or file protocols
+	 * @param url the url to fetch from
+	 * @return a byte array of data from the url
+	 * 
+	 * @throws IOException if the data at the url can't be retrieved
+	 */
+	public static byte[] fetchURLData(String url) throws IOException {
+		HttpURLConnection con = null;
+		InputStream is = null;
+		
+		try {
+			URL u = new URL(url);
+			if (url.startsWith("file://")) {
+				 is = new BufferedInputStream(u.openStream());
+			} else {
+				con = (HttpURLConnection)u.openConnection();
+				con.addRequestProperty("User-Agent", "Mozilla/4.76"); 
+				con.setDoInput(true);
+				con.setDoOutput(false);
+				con.connect();
+				
+				is = new BufferedInputStream(con.getInputStream());
+			}
+			
+			ByteArrayOutputStream baos = new ByteArrayOutputStream();
+			IOUtils.copy(is, baos);
+			return baos.toByteArray();
+		} finally {
+			IOUtils.closeQuietly(is);
+			if (con != null)
+				con.disconnect();
+		}
+	}
+}


Property changes on: trunk/polycasso/src/com/mebigfatguy/polycasso/URLFetcher.java
___________________________________________________________________
Added: svn:mime-type
   + text/plain
Added: svn:eol-style
   + native


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