From bee5dd259a4438d45ecd1bcc26dfba12875236d6 Mon Sep 17 00:00:00 2001
From: Thomas Lenz <thomas.lenz@egiz.gv.at>
Date: Tue, 26 Jun 2018 11:03:48 +0200
Subject: initial commit

---
 .../at/gv/egiz/eaaf/core/impl/utils/FileUtils.java | 142 +++++++++++++++++++++
 1 file changed, 142 insertions(+)
 create mode 100644 eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/utils/FileUtils.java

(limited to 'eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/utils/FileUtils.java')

diff --git a/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/utils/FileUtils.java b/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/utils/FileUtils.java
new file mode 100644
index 00000000..01fb7375
--- /dev/null
+++ b/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/utils/FileUtils.java
@@ -0,0 +1,142 @@
+/*******************************************************************************
+ *******************************************************************************/
+
+
+package at.gv.egiz.eaaf.core.impl.utils;
+
+import java.io.BufferedInputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.MalformedURLException;
+import java.net.URI;
+import java.net.URL;
+
+/**
+ * Utility for accessing files on the file system, and for reading from input streams.
+ * @author Paul Ivancsics
+ * @version $Id$
+ */
+public class FileUtils {
+  
+  /**
+   * Reads a file, given by URL, into a byte array.
+   * @param urlString file URL
+   * @return file content
+   * @throws IOException on any exception thrown
+   */
+  public static byte[] readURL(String urlString) throws IOException {	  
+    URL url = new URL(urlString);
+    InputStream in = new BufferedInputStream(url.openStream());
+    byte[] content = StreamUtils.readStream(in);
+    in.close();
+    return content;
+  }
+
+  /**
+   * Reads a file from a resource.
+   * @param name resource name
+   * @return file content as a byte array
+   * @throws IOException on any exception thrown
+   */
+  public static byte[] readResource(String name) throws IOException {
+    ClassLoader cl = FileUtils.class.getClassLoader();
+    BufferedInputStream in = new BufferedInputStream(cl.getResourceAsStream(name));
+    byte[] content = StreamUtils.readStream(in);
+    in.close();
+    return content;
+  }
+  /**
+   * Reads a file from a resource.
+   * @param name filename
+   * @param encoding character encoding
+   * @return file content
+   * @throws IOException on any exception thrown
+   */
+  public static String readResource(String name, String encoding) throws IOException {
+    byte[] content = readResource(name);
+    return new String(content, encoding);
+  }
+  
+  
+	/**
+	 * Returns the absolute URL of a given url which is relative to the parameter root
+	 * @param url
+	 * @param root
+	 * @return String
+	 * @throws MalformedURLException 
+	 */
+	public static String makeAbsoluteURL(String url, URI root) throws MalformedURLException {
+		return makeAbsoluteURL(url, root.toURL().toString());
+
+	}  
+  
+	/**
+	 * Returns the absolute URL of a given url which is relative to the parameter root
+	 * @param url
+	 * @param root
+	 * @return String
+	 */
+	public static String makeAbsoluteURL(String url, String root) {
+		//if url is relative to rootConfigFileDirName make it absolute 					
+		
+		File keyFile;
+		String newURL = url;
+
+		if(null == url) return  null;
+    
+		if (url.startsWith("http:/") || url.startsWith("https:/") || url.startsWith("file:/") || url.startsWith("ftp:/")) {
+			return url;
+			
+		} else {
+			// check if absolute - if not make it absolute
+			keyFile = new File(url);
+			if (!keyFile.isAbsolute()) {
+				keyFile = new File(root, url);
+
+				if (keyFile.toString().startsWith("file:"))
+					newURL = keyFile.toString();
+        
+				else
+					newURL = keyFile.toURI().toString();
+        
+			}
+			return newURL;
+		}
+	}  
+	
+	
+	 private static void copy( InputStream fis, OutputStream fos )
+	  {
+	    try
+	    {
+	      byte[] buffer = new byte[ 0xFFFF ];
+	      for ( int len; (len = fis.read(buffer)) != -1; )
+	        fos.write( buffer, 0, len );
+	    }
+	    catch( IOException e ) {
+	      System.err.println( e );
+	    }
+	    finally {
+	      if ( fis != null )
+	        try { fis.close(); } catch ( IOException e ) { e.printStackTrace(); }
+	      if ( fos != null )
+	        try { fos.close(); } catch ( IOException e ) { e.printStackTrace(); }
+	    }
+	  }
+	 
+	 public static void copyFile(File src, File dest)
+	  {
+	    try
+	    {
+	      copy( new FileInputStream( src ), new FileOutputStream( dest ) );
+	    }
+	    catch( IOException e ) {
+	      e.printStackTrace();
+	    }
+	  }
+  
+}
-- 
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