diff src/org/eclipse/jetty/util/ajax/JSONObjectConvertor.java @ 802:3428c60d7cfc

replace jetty jars with source
author Franklin Schmidt <fschmidt@gmail.com>
date Wed, 07 Sep 2016 21:15:48 -0600
parents
children
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/org/eclipse/jetty/util/ajax/JSONObjectConvertor.java	Wed Sep 07 21:15:48 2016 -0600
@@ -0,0 +1,115 @@
+//
+//  ========================================================================
+//  Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
+//  ------------------------------------------------------------------------
+//  All rights reserved. This program and the accompanying materials
+//  are made available under the terms of the Eclipse Public License v1.0
+//  and Apache License v2.0 which accompanies this distribution.
+//
+//      The Eclipse Public License is available at
+//      http://www.eclipse.org/legal/epl-v10.html
+//
+//      The Apache License v2.0 is available at
+//      http://www.opensource.org/licenses/apache2.0.php
+//
+//  You may elect to redistribute this code under either of these licenses.
+//  ========================================================================
+//
+
+package org.eclipse.jetty.util.ajax;
+
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Locale;
+import java.util.Map;
+import java.util.Set;
+
+import org.eclipse.jetty.util.ajax.JSON.Output;
+
+/* ------------------------------------------------------------ */
+/**
+ * Convert an Object to JSON using reflection on getters methods.
+ * 
+ * 
+ *
+ */
+public class JSONObjectConvertor implements JSON.Convertor
+{
+    private boolean _fromJSON;
+    private Set _excluded=null;
+
+    public JSONObjectConvertor()
+    {
+        _fromJSON=false;
+    }
+    
+    public JSONObjectConvertor(boolean fromJSON)
+    {
+        _fromJSON=fromJSON;
+    }
+    
+    /* ------------------------------------------------------------ */
+    /**
+     * @param fromJSON
+     * @param excluded An array of field names to exclude from the conversion
+     */
+    public JSONObjectConvertor(boolean fromJSON,String[] excluded)
+    {
+        _fromJSON=fromJSON;
+        if (excluded!=null)
+            _excluded=new HashSet(Arrays.asList(excluded));
+    }
+
+    public Object fromJSON(Map map)
+    {
+        if (_fromJSON)
+            throw new UnsupportedOperationException();
+        return map;
+    }
+
+    public void toJSON(Object obj, Output out)
+    {
+        try
+        {
+            Class c=obj.getClass();
+
+            if (_fromJSON)
+                out.addClass(obj.getClass());
+
+            Method[] methods = obj.getClass().getMethods();
+
+            for (int i=0;i<methods.length;i++)
+            {
+                Method m=methods[i];
+                if (!Modifier.isStatic(m.getModifiers()) &&  
+                        m.getParameterTypes().length==0 && 
+                        m.getReturnType()!=null &&
+                        m.getDeclaringClass()!=Object.class)
+                {
+                    String name=m.getName();
+                    if (name.startsWith("is"))
+                        name=name.substring(2,3).toLowerCase(Locale.ENGLISH)+name.substring(3);
+                    else if (name.startsWith("get"))
+                        name=name.substring(3,4).toLowerCase(Locale.ENGLISH)+name.substring(4);
+                    else
+                        continue;
+
+                    if (includeField(name,obj,m))
+                        out.add(name, m.invoke(obj,(Object[])null));
+                }
+            }
+        } 
+        catch (Throwable e)
+        {
+            throw new IllegalArgumentException(e);
+        }
+    }
+    
+    protected boolean includeField(String name, Object o, Method m)
+    {
+        return _excluded==null || !_excluded.contains(name);
+    }
+
+}