From 32d17447a258188b2d534bcb0bf65a659ba7b7d0 Mon Sep 17 00:00:00 2001
From: mcentner <mcentner@8a26b1a7-26f0-462f-b9ef-d0e30c41f5a4>
Date: Fri, 29 Aug 2008 12:11:34 +0000
Subject: Initial import.

git-svn-id: https://joinup.ec.europa.eu/svn/mocca/trunk@1 8a26b1a7-26f0-462f-b9ef-d0e30c41f5a4
---
 .../HTTPURLProtocolHandlerImpl.java                | 76 ++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 utils/src/main/java/at/gv/egiz/bku/utils/urldereferencer/HTTPURLProtocolHandlerImpl.java

(limited to 'utils/src/main/java/at/gv/egiz/bku/utils/urldereferencer/HTTPURLProtocolHandlerImpl.java')

diff --git a/utils/src/main/java/at/gv/egiz/bku/utils/urldereferencer/HTTPURLProtocolHandlerImpl.java b/utils/src/main/java/at/gv/egiz/bku/utils/urldereferencer/HTTPURLProtocolHandlerImpl.java
new file mode 100644
index 00000000..5cba2e1d
--- /dev/null
+++ b/utils/src/main/java/at/gv/egiz/bku/utils/urldereferencer/HTTPURLProtocolHandlerImpl.java
@@ -0,0 +1,76 @@
+/*
+* Copyright 2008 Federal Chancellery Austria and
+* Graz University of Technology
+*
+* 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 at.gv.egiz.bku.utils.urldereferencer;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.security.InvalidParameterException;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+public class HTTPURLProtocolHandlerImpl implements URLProtocolHandler {
+
+  private static Log log = LogFactory.getLog(HTTPURLProtocolHandlerImpl.class);
+
+  public final static String HTTP = "http";
+  public final static String HTTPS = "https";
+  public final static String FORMDATA = "formdata";
+  public final static String[] PROTOCOLS = { HTTP, HTTPS, FORMDATA };
+
+  public StreamData dereference(String aUrl, URLDereferencerContext aContext)
+      throws IOException {
+    String urlString = aUrl.toLowerCase().trim();
+    if (urlString.startsWith(FORMDATA)) {
+      log.debug("Requested to dereference a formdata url");
+      return dereferenceFormData(aUrl, aContext);
+    }
+
+    URL url = new URL(aUrl);
+    if ((!HTTP.equalsIgnoreCase(url.getProtocol()) && (!HTTPS
+        .equalsIgnoreCase(url.getProtocol())))) {
+      throw new InvalidParameterException("Url " + aUrl + " not supported");
+    }
+    return dereferenceHTTP(url);
+  }
+
+  protected StreamData dereferenceHTTP(URL url) throws IOException {
+    HttpURLConnection httpConn = (HttpURLConnection) url.openConnection();
+    return new StreamData(url.toString(), httpConn.getContentType(), httpConn
+        .getInputStream());
+  }
+
+  protected StreamData dereferenceFormData(String aUrl,
+      URLDereferencerContext aContext) throws IOException {
+    log.debug("Dereferencing formdata url: " + aUrl);
+    String[] parts = aUrl.split(":", 2);
+    FormDataURLSupplier supplier = (FormDataURLSupplier) aContext
+        .getProperty(FormDataURLSupplier.PROPERTY_KEY_NAME);
+    if (supplier == null) {
+      throw new NullPointerException(
+          "No FormdataUrlSupplier found in provided context");
+    }
+    String contentType = supplier.getFormDataContentType(parts[1]);
+    InputStream is = supplier.getFormData(parts[1]);
+    if (is != null) {
+      return new StreamData(aUrl, contentType, is);
+    }
+    return null;
+  }
+}
\ No newline at end of file
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