Author: hiranya
Date: Sat May 28 20:11:29 2016
New Revision: 1745927

URL: http://svn.apache.org/viewvc?rev=1745927&view=rev
Log:
Implemented the new XPath function url-encode; Applied patch from Buddhima from 
SYNAPSE-1022

Added:
    
synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/util/xpath/URLEncodeFunction.java
Modified:
    
synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/util/xpath/SynapseXPathConstants.java
    
synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/util/xpath/SynapseXPathFunctionContext.java
    
synapse/trunk/java/modules/core/src/test/java/org/apache/synapse/mediators/builtin/PropertyMediatorTest.java

Modified: 
synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/util/xpath/SynapseXPathConstants.java
URL: 
http://svn.apache.org/viewvc/synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/util/xpath/SynapseXPathConstants.java?rev=1745927&r1=1745926&r2=1745927&view=diff
==============================================================================
--- 
synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/util/xpath/SynapseXPathConstants.java
 (original)
+++ 
synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/util/xpath/SynapseXPathConstants.java
 Sat May 28 20:11:29 2016
@@ -33,6 +33,9 @@ public final class SynapseXPathConstants
     /** base64Decode XPath extension function name */
     public static final String BASE64_DECODE_FUNCTION = "base64Decode";
 
+    /** URL-Encode XPath extension function name */
+    public static final String URL_ENCODE_FUNCTION = "url-encode";
+
     /** Body relative XPath variale name for the SOAPBody */
     public static final String SOAP_BODY_VARIABLE = "body";
 

Modified: 
synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/util/xpath/SynapseXPathFunctionContext.java
URL: 
http://svn.apache.org/viewvc/synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/util/xpath/SynapseXPathFunctionContext.java?rev=1745927&r1=1745926&r2=1745927&view=diff
==============================================================================
--- 
synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/util/xpath/SynapseXPathFunctionContext.java
 (original)
+++ 
synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/util/xpath/SynapseXPathFunctionContext.java
 Sat May 28 20:11:29 2016
@@ -86,6 +86,10 @@ public class SynapseXPathFunctionContext
                    
SynapseXPathConstants.BASE64_DECODE_FUNCTION.equals(localName)) {
             // create a base64Decode function and set it to the XPath
             return new Base64DecodeFunction();
+        } else if (localName != null &&
+                   
SynapseXPathConstants.URL_ENCODE_FUNCTION.equals(localName)) {
+            // create a url-encode function and set it to the XPath
+            return new URLEncodeFunction();
         }
         //We check if custom Xpath extensions are available
         Function extensionFunction = XpathExtensionUtil.getFunctionContext(

Added: 
synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/util/xpath/URLEncodeFunction.java
URL: 
http://svn.apache.org/viewvc/synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/util/xpath/URLEncodeFunction.java?rev=1745927&view=auto
==============================================================================
--- 
synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/util/xpath/URLEncodeFunction.java
 (added)
+++ 
synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/util/xpath/URLEncodeFunction.java
 Sat May 28 20:11:29 2016
@@ -0,0 +1,105 @@
+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one
+ *  or more contributor license agreements.  See the NOTICE file
+ *  distributed with this work for additional information
+ *  regarding copyright ownership.  The ASF licenses this file
+ *  to you 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 org.apache.synapse.util.xpath;
+
+import org.apache.commons.httpclient.URIException;
+import org.apache.commons.httpclient.util.URIUtil;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.jaxen.Context;
+import org.jaxen.Function;
+import org.jaxen.FunctionCallException;
+import org.jaxen.function.StringFunction;
+
+import java.util.List;
+
+/**
+ * Implements the XPath extension function synapse:url-encode(string)
+ */
+public class URLEncodeFunction implements Function {
+
+    private static final Log log = LogFactory.getLog(URLEncodeFunction.class);
+
+    /**
+     * Returns the url-encoded string value of the first argument.
+     *
+     * @param context the context at the point in the expression when the 
function is called
+     * @param args  arguments of the functions
+     * @return The string value of a property
+     * @throws FunctionCallException
+     */
+    public Object call(Context context, List args) throws 
FunctionCallException {
+        boolean debugOn = log.isDebugEnabled();
+
+        if (args == null || args.size() == 0) {
+            if (debugOn) {
+                log.debug("Property key value for lookup is not specified");
+            }
+            return SynapseXPathConstants.NULL_STRING;
+        }
+
+        int size = args.size();
+        if (size == 1) {
+            // get the first argument, it can be a function returning a string 
as well
+            String value = StringFunction.evaluate(args.get(0), 
context.getNavigator());
+
+            // use the default UTF-8 encoding
+            return encode(debugOn, SynapseXPathConstants.DEFAULT_CHARSET, 
value);
+        } else if (size == 2) {
+            // get the first argument, it can be a function returning a string 
as well
+            String value = StringFunction.evaluate(args.get(0), 
context.getNavigator());
+
+            // encoding is in the second argument
+            String encoding = StringFunction.evaluate(args.get(1), 
context.getNavigator());
+            
+            return encode(debugOn, encoding, value);
+        } else if (debugOn) {
+            log.debug("url-encode function expects only one argument, 
returning empty string");
+        }
+        // return empty string if the arguments are wrong
+        return SynapseXPathConstants.NULL_STRING;
+    }
+
+    private Object encode(boolean debugOn, String encoding, String value) 
throws FunctionCallException {
+        if (value == null || "".equals(value)) {
+            if (debugOn) {
+                log.debug("Non empty string value should be provided for 
encoding");
+            }
+
+            return SynapseXPathConstants.NULL_STRING;
+        }
+
+        String encodedString;
+        try {
+            encodedString = URIUtil.encodePathQuery(value, encoding);
+        } catch (URIException e) {
+            String msg = "Unsupported charset encoding";
+            log.error(msg, e);
+            throw new FunctionCallException(msg, e);
+        }
+
+        if (debugOn) {
+            log.debug("Converted string: " + value + " with encoding: " + 
encoding +
+                    " to url encoded value: " + encodedString);
+        }
+
+        return encodedString;
+    }
+}

Modified: 
synapse/trunk/java/modules/core/src/test/java/org/apache/synapse/mediators/builtin/PropertyMediatorTest.java
URL: 
http://svn.apache.org/viewvc/synapse/trunk/java/modules/core/src/test/java/org/apache/synapse/mediators/builtin/PropertyMediatorTest.java?rev=1745927&r1=1745926&r2=1745927&view=diff
==============================================================================
--- 
synapse/trunk/java/modules/core/src/test/java/org/apache/synapse/mediators/builtin/PropertyMediatorTest.java
 (original)
+++ 
synapse/trunk/java/modules/core/src/test/java/org/apache/synapse/mediators/builtin/PropertyMediatorTest.java
 Sat May 28 20:11:29 2016
@@ -209,6 +209,24 @@ public class PropertyMediatorTest extend
             "value".equals(medProp.getEvaluatedExpression(synCtx)));
     }
 
+    public void testPropertyURLEncoding() throws Exception {
+        // Evaluate url-encode function
+        PropertyMediator propMediator = new PropertyMediator();
+        propMediator.setName("name");
+        propMediator.setValue("this/is+a/synapse test?for=url+encoding");
+
+        MessageContext synCtx = TestUtils.getTestContext("<empty/>");
+        propMediator.mediate(synCtx);
+
+        // read property through a mediator property
+        MediatorProperty mediatorProperty = new MediatorProperty();
+        mediatorProperty.setExpression(new 
SynapseXPath("url-encode($ctx:name)"));
+
+        assertEquals("this/is%2Ba/synapse%20test?for=url+encoding",
+                mediatorProperty.getEvaluatedExpression(synCtx));
+
+    }
+
     public void testPropertyRegexTest() throws Exception {
         String outputProperty = "regexProperty";
 


Reply via email to