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From tush...@apache.org
Subject [38/79] [partial] incubator-geode git commit: GEODE-12: Imported pulse from geode-1.0.0-SNAPSHOT-2.src.tar
Date Tue, 03 Nov 2015 11:26:00 GMT
http://git-wip-us.apache.org/repos/asf/incubator-geode/blob/1922937f/pulse/src/main/java/com/vmware/gemfire/tools/pulse/internal/json/JSONObject.java
----------------------------------------------------------------------
diff --git a/pulse/src/main/java/com/vmware/gemfire/tools/pulse/internal/json/JSONObject.java b/pulse/src/main/java/com/vmware/gemfire/tools/pulse/internal/json/JSONObject.java
new file mode 100644
index 0000000..fdc01ee
--- /dev/null
+++ b/pulse/src/main/java/com/vmware/gemfire/tools/pulse/internal/json/JSONObject.java
@@ -0,0 +1,1593 @@
+package com.vmware.gemfire.tools.pulse.internal.json;
+
+/*
+Copyright (c) 2002 JSON.org
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+The Software shall be used for Good, not Evil.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+import java.io.IOException;
+import java.io.StringWriter;
+import java.io.Writer;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+import java.util.Collection;
+import java.util.Enumeration;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Locale;
+import java.util.Map;
+import java.util.ResourceBundle;
+
+/**
+ * A JSONObject is an unordered collection of name/value pairs. Its external
+ * form is a string wrapped in curly braces with colons between the names and
+ * values, and commas between the values and names. The internal form is an
+ * object having <code>get</code> and <code>opt</code> methods for accessing the
+ * values by name, and <code>put</code> methods for adding or replacing values
+ * by name. The values can be any of these types: <code>Boolean</code>,
+ * <code>JSONArray</code>, <code>JSONObject</code>, <code>Number</code>,
+ * <code>String</code>, or the <code>JSONObject.NULL</code> object. A JSONObject
+ * constructor can be used to convert an external form JSON text into an
+ * internal form whose values can be retrieved with the <code>get</code> and
+ * <code>opt</code> methods, or to convert values into a JSON text using the
+ * <code>put</code> and <code>toString</code> methods. A <code>get</code> method
+ * returns a value if one can be found, and throws an exception if one cannot be
+ * found. An <code>opt</code> method returns a default value instead of throwing
+ * an exception, and so is useful for obtaining optional values.
+ * <p>
+ * The generic <code>get()</code> and <code>opt()</code> methods return an
+ * object, which you can cast or query for type. There are also typed
+ * <code>get</code> and <code>opt</code> methods that do type checking and type
+ * coercion for you. The opt methods differ from the get methods in that they do
+ * not throw. Instead, they return a specified value, such as null.
+ * <p>
+ * The <code>put</code> methods add or replace values in an object. For example,
+ *
+ * <pre>
+ * myString = new JSONObject().put(&quot;JSON&quot;, &quot;Hello, World!&quot;).toString();
+ * </pre>
+ *
+ * produces the string <code>{"JSON": "Hello, World"}</code>.
+ * <p>
+ * The texts produced by the <code>toString</code> methods strictly conform to
+ * the JSON syntax rules. The constructors are more forgiving in the texts they
+ * will accept:
+ * <ul>
+ * <li>An extra <code>,</code>&nbsp;<small>(comma)</small> may appear just
+ * before the closing brace.</li>
+ * <li>Strings may be quoted with <code>'</code>&nbsp;<small>(single
+ * quote)</small>.</li>
+ * <li>Strings do not need to be quoted at all if they do not begin with a quote
+ * or single quote, and if they do not contain leading or trailing spaces, and
+ * if they do not contain any of these characters:
+ * <code>{ } [ ] / \ : , = ; #</code> and if they do not look like numbers and
+ * if they are not the reserved words <code>true</code>, <code>false</code>, or
+ * <code>null</code>.</li>
+ * <li>Keys can be followed by <code>=</code> or <code>=></code> as well as by
+ * <code>:</code>.</li>
+ * <li>Values can be followed by <code>;</code> <small>(semicolon)</small> as
+ * well as by <code>,</code> <small>(comma)</small>.</li>
+ * </ul>
+ *
+ * @author JSON.org
+ * @version 2012-07-02
+ */
+public class JSONObject {
+
+    /**
+     * JSONObject.NULL is equivalent to the value that JavaScript calls null,
+     * whilst Java's null is equivalent to the value that JavaScript calls
+     * undefined.
+     */
+     private static final class Null {
+
+        /**
+         * There is only intended to be a single instance of the NULL object,
+         * so the clone method returns itself.
+         * @return     NULL.
+         */
+        protected final Object clone() {
+            return this;
+        }
+
+        /**
+         * A Null object is equal to the null value and to itself.
+         * @param object    An object to test for nullness.
+         * @return true if the object parameter is the JSONObject.NULL object
+         *  or null.
+         */
+        public boolean equals(Object object) {
+            return object == null || object == this;
+        }
+
+        /**
+         * Get the "null" string value.
+         * @return The string "null".
+         */
+        public String toString() {
+            return "null";
+        }
+    }
+
+
+    /**
+     * The map where the JSONObject's properties are kept.
+     */
+    private final Map map;
+
+
+    /**
+     * It is sometimes more convenient and less ambiguous to have a
+     * <code>NULL</code> object than to use Java's <code>null</code> value.
+     * <code>JSONObject.NULL.equals(null)</code> returns <code>true</code>.
+     * <code>JSONObject.NULL.toString()</code> returns <code>"null"</code>.
+     */
+    public static final Object NULL = new Null();
+
+
+    /**
+     * Construct an empty JSONObject.
+     */
+    public JSONObject() {
+        this.map = new HashMap();
+    }
+
+
+    /**
+     * Construct a JSONObject from a subset of another JSONObject.
+     * An array of strings is used to identify the keys that should be copied.
+     * Missing keys are ignored.
+     * @param jo A JSONObject.
+     * @param names An array of strings.
+     * @throws JSONException
+     * @exception JSONException If a value is a non-finite number or if a name is duplicated.
+     */
+    public JSONObject(JSONObject jo, String[] names) {
+        this();
+        for (int i = 0; i < names.length; i += 1) {
+            try {
+                this.putOnce(names[i], jo.opt(names[i]));
+            } catch (Exception ignore) {
+            }
+        }
+    }
+
+
+    /**
+     * Construct a JSONObject from a JSONTokener.
+     * @param x A JSONTokener object containing the source string.
+     * @throws JSONException If there is a syntax error in the source string
+     *  or a duplicated key.
+     */
+    public JSONObject(JSONTokener x) throws JSONException {
+        this();
+        char c;
+        String key;
+
+        if (x.nextClean() != '{') {
+            throw x.syntaxError("A JSONObject text must begin with '{'");
+        }
+        for (;;) {
+            c = x.nextClean();
+            switch (c) {
+            case 0:
+                throw x.syntaxError("A JSONObject text must end with '}'");
+            case '}':
+                return;
+            default:
+                x.back();
+                key = x.nextValue().toString();
+            }
+
+// The key is followed by ':'. We will also tolerate '=' or '=>'.
+
+            c = x.nextClean();
+            if (c == '=') {
+                if (x.next() != '>') {
+                    x.back();
+                }
+            } else if (c != ':') {
+                throw x.syntaxError("Expected a ':' after a key");
+            }
+            this.putOnce(key, x.nextValue());
+
+// Pairs are separated by ','. We will also tolerate ';'.
+
+            switch (x.nextClean()) {
+            case ';':
+            case ',':
+                if (x.nextClean() == '}') {
+                    return;
+                }
+                x.back();
+                break;
+            case '}':
+                return;
+            default:
+                throw x.syntaxError("Expected a ',' or '}'");
+            }
+        }
+    }
+
+
+    /**
+     * Construct a JSONObject from a Map.
+     *
+     * @param map A map object that can be used to initialize the contents of
+     *  the JSONObject.
+     * @throws JSONException
+     */
+    public JSONObject(Map map) {
+        this.map = new HashMap();
+        if (map != null) {
+            Iterator i = map.entrySet().iterator();
+            while (i.hasNext()) {
+                Map.Entry e = (Map.Entry)i.next();
+                Object value = e.getValue();
+                if (value != null) {
+                    this.map.put(e.getKey(), wrap(value));
+                }
+            }
+        }
+    }
+
+
+    /**
+     * Construct a JSONObject from an Object using bean getters.
+     * It reflects on all of the public methods of the object.
+     * For each of the methods with no parameters and a name starting
+     * with <code>"get"</code> or <code>"is"</code> followed by an uppercase letter,
+     * the method is invoked, and a key and the value returned from the getter method
+     * are put into the new JSONObject.
+     *
+     * The key is formed by removing the <code>"get"</code> or <code>"is"</code> prefix.
+     * If the second remaining character is not upper case, then the first
+     * character is converted to lower case.
+     *
+     * For example, if an object has a method named <code>"getName"</code>, and
+     * if the result of calling <code>object.getName()</code> is <code>"Larry Fine"</code>,
+     * then the JSONObject will contain <code>"name": "Larry Fine"</code>.
+     *
+     * @param bean An object that has getter methods that should be used
+     * to make a JSONObject.
+     */
+    public JSONObject(Object bean) {
+        this();
+        this.populateMap(bean);
+    }
+
+
+    /**
+     * Construct a JSONObject from an Object, using reflection to find the
+     * public members. The resulting JSONObject's keys will be the strings
+     * from the names array, and the values will be the field values associated
+     * with those keys in the object. If a key is not found or not visible,
+     * then it will not be copied into the new JSONObject.
+     * @param object An object that has fields that should be used to make a
+     * JSONObject.
+     * @param names An array of strings, the names of the fields to be obtained
+     * from the object.
+     */
+    public JSONObject(Object object, String names[]) {
+        this();
+        Class c = object.getClass();
+        for (int i = 0; i < names.length; i += 1) {
+            String name = names[i];
+            try {
+                this.putOpt(name, c.getField(name).get(object));
+            } catch (Exception ignore) {
+            }
+        }
+    }
+
+
+    /**
+     * Construct a JSONObject from a source JSON text string.
+     * This is the most commonly used JSONObject constructor.
+     * @param source    A string beginning
+     *  with <code>{</code>&nbsp;<small>(left brace)</small> and ending
+     *  with <code>}</code>&nbsp;<small>(right brace)</small>.
+     * @exception JSONException If there is a syntax error in the source
+     *  string or a duplicated key.
+     */
+    public JSONObject(String source) throws JSONException {
+        this(new JSONTokener(source));
+    }
+
+
+    /**
+     * Construct a JSONObject from a ResourceBundle.
+     * @param baseName The ResourceBundle base name.
+     * @param locale The Locale to load the ResourceBundle for.
+     * @throws JSONException If any JSONExceptions are detected.
+     */
+    public JSONObject(String baseName, Locale locale) throws JSONException {
+        this();
+        ResourceBundle bundle = ResourceBundle.getBundle(baseName, locale,
+                Thread.currentThread().getContextClassLoader());
+
+// Iterate through the keys in the bundle.
+
+        Enumeration keys = bundle.getKeys();
+        while (keys.hasMoreElements()) {
+            Object key = keys.nextElement();
+            if (key instanceof String) {
+
+// Go through the path, ensuring that there is a nested JSONObject for each
+// segment except the last. Add the value using the last segment's name into
+// the deepest nested JSONObject.
+
+                String[] path = ((String)key).split("\\.");
+                int last = path.length - 1;
+                JSONObject target = this;
+                for (int i = 0; i < last; i += 1) {
+                    String segment = path[i];
+                    JSONObject nextTarget = target.optJSONObject(segment);
+                    if (nextTarget == null) {
+                        nextTarget = new JSONObject();
+                        target.put(segment, nextTarget);
+                    }
+                    target = nextTarget;
+                }
+                target.put(path[last], bundle.getString((String)key));
+            }
+        }
+    }
+
+
+    /**
+     * Accumulate values under a key. It is similar to the put method except
+     * that if there is already an object stored under the key then a
+     * JSONArray is stored under the key to hold all of the accumulated values.
+     * If there is already a JSONArray, then the new value is appended to it.
+     * In contrast, the put method replaces the previous value.
+     *
+     * If only one value is accumulated that is not a JSONArray, then the
+     * result will be the same as using put. But if multiple values are
+     * accumulated, then the result will be like append.
+     * @param key   A key string.
+     * @param value An object to be accumulated under the key.
+     * @return this.
+     * @throws JSONException If the value is an invalid number
+     *  or if the key is null.
+     */
+    public JSONObject accumulate(
+        String key,
+        Object value
+    ) throws JSONException {
+        testValidity(value);
+        Object object = this.opt(key);
+        if (object == null) {
+            this.put(key, value instanceof JSONArray
+                    ? new JSONArray().put(value)
+                    : value);
+        } else if (object instanceof JSONArray) {
+            ((JSONArray)object).put(value);
+        } else {
+            this.put(key, new JSONArray().put(object).put(value));
+        }
+        return this;
+    }
+
+
+    /**
+     * Append values to the array under a key. If the key does not exist in the
+     * JSONObject, then the key is put in the JSONObject with its value being a
+     * JSONArray containing the value parameter. If the key was already
+     * associated with a JSONArray, then the value parameter is appended to it.
+     * @param key   A key string.
+     * @param value An object to be accumulated under the key.
+     * @return this.
+     * @throws JSONException If the key is null or if the current value
+     *  associated with the key is not a JSONArray.
+     */
+    public JSONObject append(String key, Object value) throws JSONException {
+        testValidity(value);
+        Object object = this.opt(key);
+        if (object == null) {
+            this.put(key, new JSONArray().put(value));
+        } else if (object instanceof JSONArray) {
+            this.put(key, ((JSONArray)object).put(value));
+        } else {
+            throw new JSONException("JSONObject[" + key +
+                    "] is not a JSONArray.");
+        }
+        return this;
+    }
+
+
+    /**
+     * Produce a string from a double. The string "null" will be returned if
+     * the number is not finite.
+     * @param  d A double.
+     * @return A String.
+     */
+    public static String doubleToString(double d) {
+        if (Double.isInfinite(d) || Double.isNaN(d)) {
+            return "null";
+        }
+
+// Shave off trailing zeros and decimal point, if possible.
+
+        String string = Double.toString(d);
+        if (string.indexOf('.') > 0 && string.indexOf('e') < 0 &&
+                string.indexOf('E') < 0) {
+            while (string.endsWith("0")) {
+                string = string.substring(0, string.length() - 1);
+            }
+            if (string.endsWith(".")) {
+                string = string.substring(0, string.length() - 1);
+            }
+        }
+        return string;
+    }
+
+
+    /**
+     * Get the value object associated with a key.
+     *
+     * @param key   A key string.
+     * @return      The object associated with the key.
+     * @throws      JSONException if the key is not found.
+     */
+    public Object get(String key) throws JSONException {
+        if (key == null) {
+            throw new JSONException("Null key.");
+        }
+        Object object = this.opt(key);
+        if (object == null) {
+            throw new JSONException("JSONObject[" + quote(key) +
+                    "] not found.");
+        }
+        return object;
+    }
+
+
+    /**
+     * Get the boolean value associated with a key.
+     *
+     * @param key   A key string.
+     * @return      The truth.
+     * @throws      JSONException
+     *  if the value is not a Boolean or the String "true" or "false".
+     */
+    public boolean getBoolean(String key) throws JSONException {
+        Object object = this.get(key);
+        if (object.equals(Boolean.FALSE) ||
+                (object instanceof String &&
+                ((String)object).equalsIgnoreCase("false"))) {
+            return false;
+        } else if (object.equals(Boolean.TRUE) ||
+                (object instanceof String &&
+                ((String)object).equalsIgnoreCase("true"))) {
+            return true;
+        }
+        throw new JSONException("JSONObject[" + quote(key) +
+                "] is not a Boolean.");
+    }
+
+
+    /**
+     * Get the double value associated with a key.
+     * @param key   A key string.
+     * @return      The numeric value.
+     * @throws JSONException if the key is not found or
+     *  if the value is not a Number object and cannot be converted to a number.
+     */
+    public double getDouble(String key) throws JSONException {
+        Object object = this.get(key);
+        try {
+            return object instanceof Number
+                ? ((Number)object).doubleValue()
+                : Double.parseDouble((String)object);
+        } catch (Exception e) {
+            throw new JSONException("JSONObject[" + quote(key) +
+                "] is not a number.");
+        }
+    }
+
+
+    /**
+     * Get the int value associated with a key.
+     *
+     * @param key   A key string.
+     * @return      The integer value.
+     * @throws   JSONException if the key is not found or if the value cannot
+     *  be converted to an integer.
+     */
+    public int getInt(String key) throws JSONException {
+        Object object = this.get(key);
+        try {
+            return object instanceof Number
+                ? ((Number)object).intValue()
+                : Integer.parseInt((String)object);
+        } catch (Exception e) {
+            throw new JSONException("JSONObject[" + quote(key) +
+                "] is not an int.");
+        }
+    }
+
+
+    /**
+     * Get the JSONArray value associated with a key.
+     *
+     * @param key   A key string.
+     * @return      A JSONArray which is the value.
+     * @throws      JSONException if the key is not found or
+     *  if the value is not a JSONArray.
+     */
+    public JSONArray getJSONArray(String key) throws JSONException {
+        Object object = this.get(key);
+        if (object instanceof JSONArray) {
+            return (JSONArray)object;
+        }
+        throw new JSONException("JSONObject[" + quote(key) +
+                "] is not a JSONArray.");
+    }
+
+
+    /**
+     * Get the JSONObject value associated with a key.
+     *
+     * @param key   A key string.
+     * @return      A JSONObject which is the value.
+     * @throws      JSONException if the key is not found or
+     *  if the value is not a JSONObject.
+     */
+    public JSONObject getJSONObject(String key) throws JSONException {
+        Object object = this.get(key);
+        if (object instanceof JSONObject) {
+            return (JSONObject)object;
+        }
+        throw new JSONException("JSONObject[" + quote(key) +
+                "] is not a JSONObject.");
+    }
+
+
+    /**
+     * Get the long value associated with a key.
+     *
+     * @param key   A key string.
+     * @return      The long value.
+     * @throws   JSONException if the key is not found or if the value cannot
+     *  be converted to a long.
+     */
+    public long getLong(String key) throws JSONException {
+        Object object = this.get(key);
+        try {
+            return object instanceof Number
+                ? ((Number)object).longValue()
+                : Long.parseLong((String)object);
+        } catch (Exception e) {
+            throw new JSONException("JSONObject[" + quote(key) +
+                "] is not a long.");
+        }
+    }
+
+
+    /**
+     * Get an array of field names from a JSONObject.
+     *
+     * @return An array of field names, or null if there are no names.
+     */
+    public static String[] getNames(JSONObject jo) {
+        int length = jo.length();
+        if (length == 0) {
+            return null;
+        }
+        Iterator iterator = jo.keys();
+        String[] names = new String[length];
+        int i = 0;
+        while (iterator.hasNext()) {
+            names[i] = (String)iterator.next();
+            i += 1;
+        }
+        return names;
+    }
+
+
+    /**
+     * Get an array of field names from an Object.
+     *
+     * @return An array of field names, or null if there are no names.
+     */
+    public static String[] getNames(Object object) {
+        if (object == null) {
+            return null;
+        }
+        Class klass = object.getClass();
+        Field[] fields = klass.getFields();
+        int length = fields.length;
+        if (length == 0) {
+            return null;
+        }
+        String[] names = new String[length];
+        for (int i = 0; i < length; i += 1) {
+            names[i] = fields[i].getName();
+        }
+        return names;
+    }
+
+
+    /**
+     * Get the string associated with a key.
+     *
+     * @param key   A key string.
+     * @return      A string which is the value.
+     * @throws   JSONException if there is no string value for the key.
+     */
+    public String getString(String key) throws JSONException {
+        Object object = this.get(key);
+        if (object instanceof String) {
+            return (String)object;
+        }
+        throw new JSONException("JSONObject[" + quote(key) +
+            "] not a string.");
+    }
+
+
+    /**
+     * Determine if the JSONObject contains a specific key.
+     * @param key   A key string.
+     * @return      true if the key exists in the JSONObject.
+     */
+    public boolean has(String key) {
+        return this.map.containsKey(key);
+    }
+
+
+    /**
+     * Increment a property of a JSONObject. If there is no such property,
+     * create one with a value of 1. If there is such a property, and if
+     * it is an Integer, Long, Double, or Float, then add one to it.
+     * @param key  A key string.
+     * @return this.
+     * @throws JSONException If there is already a property with this name
+     * that is not an Integer, Long, Double, or Float.
+     */
+    public JSONObject increment(String key) throws JSONException {
+        Object value = this.opt(key);
+        if (value == null) {
+            this.put(key, 1);
+        } else if (value instanceof Integer) {
+            this.put(key, ((Integer)value).intValue() + 1);
+        } else if (value instanceof Long) {
+            this.put(key, ((Long)value).longValue() + 1);
+        } else if (value instanceof Double) {
+            this.put(key, ((Double)value).doubleValue() + 1);
+        } else if (value instanceof Float) {
+            this.put(key, ((Float)value).floatValue() + 1);
+        } else {
+            throw new JSONException("Unable to increment [" + quote(key) + "].");
+        }
+        return this;
+    }
+
+
+    /**
+     * Determine if the value associated with the key is null or if there is
+     *  no value.
+     * @param key   A key string.
+     * @return      true if there is no value associated with the key or if
+     *  the value is the JSONObject.NULL object.
+     */
+    public boolean isNull(String key) {
+        return JSONObject.NULL.equals(this.opt(key));
+    }
+
+
+    /**
+     * Get an enumeration of the keys of the JSONObject.
+     *
+     * @return An iterator of the keys.
+     */
+    public Iterator keys() {
+        return this.map.keySet().iterator();
+    }
+
+
+    /**
+     * Get the number of keys stored in the JSONObject.
+     *
+     * @return The number of keys in the JSONObject.
+     */
+    public int length() {
+        return this.map.size();
+    }
+
+
+    /**
+     * Produce a JSONArray containing the names of the elements of this
+     * JSONObject.
+     * @return A JSONArray containing the key strings, or null if the JSONObject
+     * is empty.
+     */
+    public JSONArray names() {
+        JSONArray ja = new JSONArray();
+        Iterator  keys = this.keys();
+        while (keys.hasNext()) {
+            ja.put(keys.next());
+        }
+        return ja.length() == 0 ? null : ja;
+    }
+
+    /**
+     * Produce a string from a Number.
+     * @param  number A Number
+     * @return A String.
+     * @throws JSONException If n is a non-finite number.
+     */
+    public static String numberToString(Number number)
+            throws JSONException {
+        if (number == null) {
+            throw new JSONException("Null pointer");
+        }
+        testValidity(number);
+
+// Shave off trailing zeros and decimal point, if possible.
+
+        String string = number.toString();
+        if (string.indexOf('.') > 0 && string.indexOf('e') < 0 &&
+                string.indexOf('E') < 0) {
+            while (string.endsWith("0")) {
+                string = string.substring(0, string.length() - 1);
+            }
+            if (string.endsWith(".")) {
+                string = string.substring(0, string.length() - 1);
+            }
+        }
+        return string;
+    }
+
+
+    /**
+     * Get an optional value associated with a key.
+     * @param key   A key string.
+     * @return      An object which is the value, or null if there is no value.
+     */
+    public Object opt(String key) {
+        return key == null ? null : this.map.get(key);
+    }
+
+
+    /**
+     * Get an optional boolean associated with a key.
+     * It returns false if there is no such key, or if the value is not
+     * Boolean.TRUE or the String "true".
+     *
+     * @param key   A key string.
+     * @return      The truth.
+     */
+    public boolean optBoolean(String key) {
+        return this.optBoolean(key, false);
+    }
+
+
+    /**
+     * Get an optional boolean associated with a key.
+     * It returns the defaultValue if there is no such key, or if it is not
+     * a Boolean or the String "true" or "false" (case insensitive).
+     *
+     * @param key              A key string.
+     * @param defaultValue     The default.
+     * @return      The truth.
+     */
+    public boolean optBoolean(String key, boolean defaultValue) {
+        try {
+            return this.getBoolean(key);
+        } catch (Exception e) {
+            return defaultValue;
+        }
+    }
+
+
+    /**
+     * Get an optional double associated with a key,
+     * or NaN if there is no such key or if its value is not a number.
+     * If the value is a string, an attempt will be made to evaluate it as
+     * a number.
+     *
+     * @param key   A string which is the key.
+     * @return      An object which is the value.
+     */
+    public double optDouble(String key) {
+        return this.optDouble(key, Double.NaN);
+    }
+
+
+    /**
+     * Get an optional double associated with a key, or the
+     * defaultValue if there is no such key or if its value is not a number.
+     * If the value is a string, an attempt will be made to evaluate it as
+     * a number.
+     *
+     * @param key   A key string.
+     * @param defaultValue     The default.
+     * @return      An object which is the value.
+     */
+    public double optDouble(String key, double defaultValue) {
+        try {
+            return this.getDouble(key);
+        } catch (Exception e) {
+            return defaultValue;
+        }
+    }
+
+
+    /**
+     * Get an optional int value associated with a key,
+     * or zero if there is no such key or if the value is not a number.
+     * If the value is a string, an attempt will be made to evaluate it as
+     * a number.
+     *
+     * @param key   A key string.
+     * @return      An object which is the value.
+     */
+    public int optInt(String key) {
+        return this.optInt(key, 0);
+    }
+
+
+    /**
+     * Get an optional int value associated with a key,
+     * or the default if there is no such key or if the value is not a number.
+     * If the value is a string, an attempt will be made to evaluate it as
+     * a number.
+     *
+     * @param key   A key string.
+     * @param defaultValue     The default.
+     * @return      An object which is the value.
+     */
+    public int optInt(String key, int defaultValue) {
+        try {
+            return this.getInt(key);
+        } catch (Exception e) {
+            return defaultValue;
+        }
+    }
+
+
+    /**
+     * Get an optional JSONArray associated with a key.
+     * It returns null if there is no such key, or if its value is not a
+     * JSONArray.
+     *
+     * @param key   A key string.
+     * @return      A JSONArray which is the value.
+     */
+    public JSONArray optJSONArray(String key) {
+        Object o = this.opt(key);
+        return o instanceof JSONArray ? (JSONArray)o : null;
+    }
+
+
+    /**
+     * Get an optional JSONObject associated with a key.
+     * It returns null if there is no such key, or if its value is not a
+     * JSONObject.
+     *
+     * @param key   A key string.
+     * @return      A JSONObject which is the value.
+     */
+    public JSONObject optJSONObject(String key) {
+        Object object = this.opt(key);
+        return object instanceof JSONObject ? (JSONObject)object : null;
+    }
+
+
+    /**
+     * Get an optional long value associated with a key,
+     * or zero if there is no such key or if the value is not a number.
+     * If the value is a string, an attempt will be made to evaluate it as
+     * a number.
+     *
+     * @param key   A key string.
+     * @return      An object which is the value.
+     */
+    public long optLong(String key) {
+        return this.optLong(key, 0);
+    }
+
+
+    /**
+     * Get an optional long value associated with a key,
+     * or the default if there is no such key or if the value is not a number.
+     * If the value is a string, an attempt will be made to evaluate it as
+     * a number.
+     *
+     * @param key          A key string.
+     * @param defaultValue The default.
+     * @return             An object which is the value.
+     */
+    public long optLong(String key, long defaultValue) {
+        try {
+            return this.getLong(key);
+        } catch (Exception e) {
+            return defaultValue;
+        }
+    }
+
+
+    /**
+     * Get an optional string associated with a key.
+     * It returns an empty string if there is no such key. If the value is not
+     * a string and is not null, then it is converted to a string.
+     *
+     * @param key   A key string.
+     * @return      A string which is the value.
+     */
+    public String optString(String key) {
+        return this.optString(key, "");
+    }
+
+
+    /**
+     * Get an optional string associated with a key.
+     * It returns the defaultValue if there is no such key.
+     *
+     * @param key   A key string.
+     * @param defaultValue     The default.
+     * @return      A string which is the value.
+     */
+    public String optString(String key, String defaultValue) {
+        Object object = this.opt(key);
+        return NULL.equals(object) ? defaultValue : object.toString();
+    }
+
+
+    private void populateMap(Object bean) {
+        Class klass = bean.getClass();
+
+// If klass is a System class then set includeSuperClass to false.
+
+        boolean includeSuperClass = klass.getClassLoader() != null;
+
+        Method[] methods = includeSuperClass
+                ? klass.getMethods()
+                : klass.getDeclaredMethods();
+        for (int i = 0; i < methods.length; i += 1) {
+            try {
+                Method method = methods[i];
+                if (Modifier.isPublic(method.getModifiers())) {
+                    String name = method.getName();
+                    String key = "";
+                    if (name.startsWith("get")) {
+                        if ("getClass".equals(name) ||
+                                "getDeclaringClass".equals(name)) {
+                            key = "";
+                        } else {
+                            key = name.substring(3);
+                        }
+                    } else if (name.startsWith("is")) {
+                        key = name.substring(2);
+                    }
+                    if (key.length() > 0 &&
+                            Character.isUpperCase(key.charAt(0)) &&
+                            method.getParameterTypes().length == 0) {
+                        if (key.length() == 1) {
+                            key = key.toLowerCase();
+                        } else if (!Character.isUpperCase(key.charAt(1))) {
+                            key = key.substring(0, 1).toLowerCase() +
+                                key.substring(1);
+                        }
+
+                        Object result = method.invoke(bean, (Object[])null);
+                        if (result != null) {
+                            this.map.put(key, wrap(result));
+                        }
+                    }
+                }
+            } catch (Exception ignore) {
+            }
+        }
+    }
+
+
+    /**
+     * Put a key/boolean pair in the JSONObject.
+     *
+     * @param key   A key string.
+     * @param value A boolean which is the value.
+     * @return this.
+     * @throws JSONException If the key is null.
+     */
+    public JSONObject put(String key, boolean value) throws JSONException {
+        this.put(key, value ? Boolean.TRUE : Boolean.FALSE);
+        return this;
+    }
+
+
+    /**
+     * Put a key/value pair in the JSONObject, where the value will be a
+     * JSONArray which is produced from a Collection.
+     * @param key   A key string.
+     * @param value A Collection value.
+     * @return      this.
+     * @throws JSONException
+     */
+    public JSONObject put(String key, Collection value) throws JSONException {
+        this.put(key, new JSONArray(value));
+        return this;
+    }
+
+
+    /**
+     * Put a key/double pair in the JSONObject.
+     *
+     * @param key   A key string.
+     * @param value A double which is the value.
+     * @return this.
+     * @throws JSONException If the key is null or if the number is invalid.
+     */
+    public JSONObject put(String key, double value) throws JSONException {
+        this.put(key, new Double(value));
+        return this;
+    }
+
+
+    /**
+     * Put a key/int pair in the JSONObject.
+     *
+     * @param key   A key string.
+     * @param value An int which is the value.
+     * @return this.
+     * @throws JSONException If the key is null.
+     */
+    public JSONObject put(String key, int value) throws JSONException {
+        this.put(key, new Integer(value));
+        return this;
+    }
+
+
+    /**
+     * Put a key/long pair in the JSONObject.
+     *
+     * @param key   A key string.
+     * @param value A long which is the value.
+     * @return this.
+     * @throws JSONException If the key is null.
+     */
+    public JSONObject put(String key, long value) throws JSONException {
+        this.put(key, new Long(value));
+        return this;
+    }
+
+
+    /**
+     * Put a key/value pair in the JSONObject, where the value will be a
+     * JSONObject which is produced from a Map.
+     * @param key   A key string.
+     * @param value A Map value.
+     * @return      this.
+     * @throws JSONException
+     */
+    public JSONObject put(String key, Map value) throws JSONException {
+        this.put(key, new JSONObject(value));
+        return this;
+    }
+
+
+    /**
+     * Put a key/value pair in the JSONObject. If the value is null,
+     * then the key will be removed from the JSONObject if it is present.
+     * @param key   A key string.
+     * @param value An object which is the value. It should be of one of these
+     *  types: Boolean, Double, Integer, JSONArray, JSONObject, Long, String,
+     *  or the JSONObject.NULL object.
+     * @return this.
+     * @throws JSONException If the value is non-finite number
+     *  or if the key is null.
+     */
+    public JSONObject put(String key, Object value) throws JSONException {
+        if (key == null) {
+            throw new JSONException("Null key.");
+        }
+        if (value != null) {
+            testValidity(value);
+            this.map.put(key, value);
+        } else {
+            this.remove(key);
+        }
+        return this;
+    }
+
+
+    /**
+     * Put a key/value pair in the JSONObject, but only if the key and the
+     * value are both non-null, and only if there is not already a member
+     * with that name.
+     * @param key
+     * @param value
+     * @return his.
+     * @throws JSONException if the key is a duplicate
+     */
+    public JSONObject putOnce(String key, Object value) throws JSONException {
+        if (key != null && value != null) {
+            if (this.opt(key) != null) {
+                throw new JSONException("Duplicate key \"" + key + "\"");
+            }
+            this.put(key, value);
+        }
+        return this;
+    }
+
+
+    /**
+     * Put a key/value pair in the JSONObject, but only if the
+     * key and the value are both non-null.
+     * @param key   A key string.
+     * @param value An object which is the value. It should be of one of these
+     *  types: Boolean, Double, Integer, JSONArray, JSONObject, Long, String,
+     *  or the JSONObject.NULL object.
+     * @return this.
+     * @throws JSONException If the value is a non-finite number.
+     */
+    public JSONObject putOpt(String key, Object value) throws JSONException {
+        if (key != null && value != null) {
+            this.put(key, value);
+        }
+        return this;
+    }
+
+
+    /**
+     * Produce a string in double quotes with backslash sequences in all the
+     * right places. A backslash will be inserted within </, producing <\/,
+     * allowing JSON text to be delivered in HTML. In JSON text, a string
+     * cannot contain a control character or an unescaped quote or backslash.
+     * @param string A String
+     * @return  A String correctly formatted for insertion in a JSON text.
+     */
+    public static String quote(String string) {
+        StringWriter sw = new StringWriter();
+        synchronized (sw.getBuffer()) {
+            try {
+                return quote(string, sw).toString();
+            } catch (IOException ignored) {
+                // will never happen - we are writing to a string writer
+                return "";
+            }
+        }
+    }
+
+    public static Writer quote(String string, Writer w) throws IOException {
+        if (string == null || string.length() == 0) {
+            w.write("\"\"");
+            return w;
+        }
+
+        char b;
+        char c = 0;
+        String hhhh;
+        int i;
+        int len = string.length();
+
+        w.write('"');
+        for (i = 0; i < len; i += 1) {
+            b = c;
+            c = string.charAt(i);
+            switch (c) {
+            case '\\':
+            case '"':
+                w.write('\\');
+                w.write(c);
+                break;
+            case '/':
+                if (b == '<') {
+                    w.write('\\');
+                }
+                w.write(c);
+                break;
+            case '\b':
+                w.write("\\b");
+                break;
+            case '\t':
+                w.write("\\t");
+                break;
+            case '\n':
+                w.write("\\n");
+                break;
+            case '\f':
+                w.write("\\f");
+                break;
+            case '\r':
+                w.write("\\r");
+                break;
+            default:
+                if (c < ' ' || (c >= '\u0080' && c < '\u00a0')
+                        || (c >= '\u2000' && c < '\u2100')) {
+                    hhhh = "000" + Integer.toHexString(c);
+                    w.write("\\u" + hhhh.substring(hhhh.length() - 4));
+                } else {
+                    w.write(c);
+                }
+            }
+        }
+        w.write('"');
+        return w;
+    }
+
+    /**
+     * Remove a name and its value, if present.
+     * @param key The name to be removed.
+     * @return The value that was associated with the name,
+     * or null if there was no value.
+     */
+    public Object remove(String key) {
+        return this.map.remove(key);
+    }
+
+    /**
+     * Try to convert a string into a number, boolean, or null. If the string
+     * can't be converted, return the string.
+     * @param string A String.
+     * @return A simple JSON value.
+     */
+    public static Object stringToValue(String string) {
+        Double d;
+        if (string.equals("")) {
+            return string;
+        }
+        if (string.equalsIgnoreCase("true")) {
+            return Boolean.TRUE;
+        }
+        if (string.equalsIgnoreCase("false")) {
+            return Boolean.FALSE;
+        }
+        if (string.equalsIgnoreCase("null")) {
+            return JSONObject.NULL;
+        }
+
+        /*
+         * If it might be a number, try converting it.
+         * If a number cannot be produced, then the value will just
+         * be a string. Note that the plus and implied string
+         * conventions are non-standard. A JSON parser may accept
+         * non-JSON forms as long as it accepts all correct JSON forms.
+         */
+
+        char b = string.charAt(0);
+        if ((b >= '0' && b <= '9') || b == '.' || b == '-' || b == '+') {
+            try {
+                if (string.indexOf('.') > -1 ||
+                        string.indexOf('e') > -1 || string.indexOf('E') > -1) {
+                    d = Double.valueOf(string);
+                    if (!d.isInfinite() && !d.isNaN()) {
+                        return d;
+                    }
+                } else {
+                    Long myLong = new Long(string);
+                    if (myLong.longValue() == myLong.intValue()) {
+                        return new Integer(myLong.intValue());
+                    } else {
+                        return myLong;
+                    }
+                }
+            }  catch (Exception ignore) {
+            }
+        }
+        return string;
+    }
+
+
+    /**
+     * Throw an exception if the object is a NaN or infinite number.
+     * @param o The object to test.
+     * @throws JSONException If o is a non-finite number.
+     */
+    public static void testValidity(Object o) throws JSONException {
+        if (o != null) {
+            if (o instanceof Double) {
+                if (((Double)o).isInfinite() || ((Double)o).isNaN()) {
+                    throw new JSONException(
+                        "JSON does not allow non-finite numbers.");
+                }
+            } else if (o instanceof Float) {
+                if (((Float)o).isInfinite() || ((Float)o).isNaN()) {
+                    throw new JSONException(
+                        "JSON does not allow non-finite numbers.");
+                }
+            }
+        }
+    }
+
+
+    /**
+     * Produce a JSONArray containing the values of the members of this
+     * JSONObject.
+     * @param names A JSONArray containing a list of key strings. This
+     * determines the sequence of the values in the result.
+     * @return A JSONArray of values.
+     * @throws JSONException If any of the values are non-finite numbers.
+     */
+    public JSONArray toJSONArray(JSONArray names) throws JSONException {
+        if (names == null || names.length() == 0) {
+            return null;
+        }
+        JSONArray ja = new JSONArray();
+        for (int i = 0; i < names.length(); i += 1) {
+            ja.put(this.opt(names.getString(i)));
+        }
+        return ja;
+    }
+
+    /**
+     * Make a JSON text of this JSONObject. For compactness, no whitespace
+     * is added. If this would not result in a syntactically correct JSON text,
+     * then null will be returned instead.
+     * <p>
+     * Warning: This method assumes that the data structure is acyclical.
+     *
+     * @return a printable, displayable, portable, transmittable
+     *  representation of the object, beginning
+     *  with <code>{</code>&nbsp;<small>(left brace)</small> and ending
+     *  with <code>}</code>&nbsp;<small>(right brace)</small>.
+     */
+    public String toString() {
+        try {
+            return this.toString(0);
+        } catch (Exception e) {
+            return null;
+        }
+    }
+
+
+    /**
+     * Make a prettyprinted JSON text of this JSONObject.
+     * <p>
+     * Warning: This method assumes that the data structure is acyclical.
+     * @param indentFactor The number of spaces to add to each level of
+     *  indentation.
+     * @return a printable, displayable, portable, transmittable
+     *  representation of the object, beginning
+     *  with <code>{</code>&nbsp;<small>(left brace)</small> and ending
+     *  with <code>}</code>&nbsp;<small>(right brace)</small>.
+     * @throws JSONException If the object contains an invalid number.
+     */
+    public String toString(int indentFactor) throws JSONException {
+        StringWriter w = new StringWriter();
+        synchronized (w.getBuffer()) {
+            return this.write(w, indentFactor, 0).toString();
+        }
+    }
+
+    /**
+     * Make a JSON text of an Object value. If the object has an
+     * value.toJSONString() method, then that method will be used to produce
+     * the JSON text. The method is required to produce a strictly
+     * conforming text. If the object does not contain a toJSONString
+     * method (which is the most common case), then a text will be
+     * produced by other means. If the value is an array or Collection,
+     * then a JSONArray will be made from it and its toJSONString method
+     * will be called. If the value is a MAP, then a JSONObject will be made
+     * from it and its toJSONString method will be called. Otherwise, the
+     * value's toString method will be called, and the result will be quoted.
+     *
+     * <p>
+     * Warning: This method assumes that the data structure is acyclical.
+     * @param value The value to be serialized.
+     * @return a printable, displayable, transmittable
+     *  representation of the object, beginning
+     *  with <code>{</code>&nbsp;<small>(left brace)</small> and ending
+     *  with <code>}</code>&nbsp;<small>(right brace)</small>.
+     * @throws JSONException If the value is or contains an invalid number.
+     */
+    public static String valueToString(Object value) throws JSONException {
+        if (value == null || value.equals(null)) {
+            return "null";
+        }
+        if (value instanceof JSONString) {
+            Object object;
+            try {
+                object = ((JSONString)value).toJSONString();
+            } catch (Exception e) {
+                throw new JSONException(e);
+            }
+            if (object instanceof String) {
+                return (String)object;
+            }
+            throw new JSONException("Bad value from toJSONString: " + object);
+        }
+        if (value instanceof Number) {
+            return numberToString((Number) value);
+        }
+        if (value instanceof Boolean || value instanceof JSONObject ||
+                value instanceof JSONArray) {
+            return value.toString();
+        }
+        if (value instanceof Map) {
+            return new JSONObject((Map)value).toString();
+        }
+        if (value instanceof Collection) {
+            return new JSONArray((Collection)value).toString();
+        }
+        if (value.getClass().isArray()) {
+            return new JSONArray(value).toString();
+        }
+        return quote(value.toString());
+    }
+
+     /**
+      * Wrap an object, if necessary. If the object is null, return the NULL
+      * object. If it is an array or collection, wrap it in a JSONArray. If
+      * it is a map, wrap it in a JSONObject. If it is a standard property
+      * (Double, String, et al) then it is already wrapped. Otherwise, if it
+      * comes from one of the java packages, turn it into a string. And if
+      * it doesn't, try to wrap it in a JSONObject. If the wrapping fails,
+      * then null is returned.
+      *
+      * @param object The object to wrap
+      * @return The wrapped value
+      */
+     public static Object wrap(Object object) {
+         try {
+             if (object == null) {
+                 return NULL;
+             }
+             if (object instanceof JSONObject || object instanceof JSONArray  ||
+                     NULL.equals(object)      || object instanceof JSONString ||
+                     object instanceof Byte   || object instanceof Character  ||
+                     object instanceof Short  || object instanceof Integer    ||
+                     object instanceof Long   || object instanceof Boolean    ||
+                     object instanceof Float  || object instanceof Double     ||
+                     object instanceof String || object instanceof Enum) {
+                 return object;
+             }
+
+             if (object instanceof Collection) {
+                 return new JSONArray((Collection)object);
+             }
+             if (object.getClass().isArray()) {
+                 return new JSONArray(object);
+             }
+             if (object instanceof Map) {
+                 return new JSONObject((Map)object);
+             }
+             Package objectPackage = object.getClass().getPackage();
+             String objectPackageName = objectPackage != null
+                 ? objectPackage.getName()
+                 : "";
+             if (
+                 objectPackageName.startsWith("java.") ||
+                 objectPackageName.startsWith("javax.") ||
+                 object.getClass().getClassLoader() == null
+             ) {
+                 return object.toString();
+             }
+             return new JSONObject(object);
+         } catch(Exception exception) {
+             return null;
+         }
+     }
+
+
+     /**
+      * Write the contents of the JSONObject as JSON text to a writer.
+      * For compactness, no whitespace is added.
+      * <p>
+      * Warning: This method assumes that the data structure is acyclical.
+      *
+      * @return The writer.
+      * @throws JSONException
+      */
+     public Writer write(Writer writer) throws JSONException {
+        return this.write(writer, 0, 0);
+    }
+
+
+    static final Writer writeValue(Writer writer, Object value,
+            int indentFactor, int indent) throws JSONException, IOException {
+        if (value == null || value.equals(null)) {
+            writer.write("null");
+        } else if (value instanceof JSONObject) {
+            ((JSONObject) value).write(writer, indentFactor, indent);
+        } else if (value instanceof JSONArray) {
+            ((JSONArray) value).write(writer, indentFactor, indent);
+        } else if (value instanceof Map) {
+            new JSONObject((Map) value).write(writer, indentFactor, indent);
+        } else if (value instanceof Collection) {
+            new JSONArray((Collection) value).write(writer, indentFactor,
+                    indent);
+        } else if (value.getClass().isArray()) {
+            new JSONArray(value).write(writer, indentFactor, indent);
+        } else if (value instanceof Number) {
+            writer.write(numberToString((Number) value));
+        } else if (value instanceof Boolean) {
+            writer.write(value.toString());
+        } else if (value instanceof JSONString) {
+            Object o;
+            try {
+                o = ((JSONString) value).toJSONString();
+            } catch (Exception e) {
+                throw new JSONException(e);
+            }
+            writer.write(o != null ? o.toString() : quote(value.toString()));
+        } else {
+            quote(value.toString(), writer);
+        }
+        return writer;
+    }
+
+    static final void indent(Writer writer, int indent) throws IOException {
+        for (int i = 0; i < indent; i += 1) {
+            writer.write(' ');
+        }
+    }
+
+    /**
+     * Write the contents of the JSONObject as JSON text to a writer. For
+     * compactness, no whitespace is added.
+     * <p>
+     * Warning: This method assumes that the data structure is acyclical.
+     *
+     * @return The writer.
+     * @throws JSONException
+     */
+    Writer write(Writer writer, int indentFactor, int indent)
+            throws JSONException {
+        try {
+            boolean commanate = false;
+            final int length = this.length();
+            Iterator keys = this.keys();
+            writer.write('{');
+
+            if (length == 1) {
+                Object key = keys.next();
+                writer.write(quote(key.toString()));
+                writer.write(':');
+                if (indentFactor > 0) {
+                    writer.write(' ');
+                }
+                writeValue(writer, this.map.get(key), indentFactor, indent);
+            } else if (length != 0) {
+                final int newindent = indent + indentFactor;
+                while (keys.hasNext()) {
+                    Object key = keys.next();
+                    if (commanate) {
+                        writer.write(',');
+                    }
+                    if (indentFactor > 0) {
+                        writer.write('\n');
+                    }
+                    indent(writer, newindent);
+                    writer.write(quote(key.toString()));
+                    writer.write(':');
+                    if (indentFactor > 0) {
+                        writer.write(' ');
+                    }
+                    writeValue(writer, this.map.get(key), indentFactor,
+                            newindent);
+                    commanate = true;
+                }
+                if (indentFactor > 0) {
+                    writer.write('\n');
+                }
+                indent(writer, indent);
+            }
+            writer.write('}');
+            return writer;
+        } catch (IOException exception) {
+            throw new JSONException(exception);
+        }
+     }
+}

http://git-wip-us.apache.org/repos/asf/incubator-geode/blob/1922937f/pulse/src/main/java/com/vmware/gemfire/tools/pulse/internal/json/JSONString.java
----------------------------------------------------------------------
diff --git a/pulse/src/main/java/com/vmware/gemfire/tools/pulse/internal/json/JSONString.java b/pulse/src/main/java/com/vmware/gemfire/tools/pulse/internal/json/JSONString.java
new file mode 100644
index 0000000..8f0ea3f
--- /dev/null
+++ b/pulse/src/main/java/com/vmware/gemfire/tools/pulse/internal/json/JSONString.java
@@ -0,0 +1,18 @@
+package com.vmware.gemfire.tools.pulse.internal.json;
+/**
+ * The <code>JSONString</code> interface allows a <code>toJSONString()</code> 
+ * method so that a class can change the behavior of 
+ * <code>JSONObject.toString()</code>, <code>JSONArray.toString()</code>,
+ * and <code>JSONWriter.value(</code>Object<code>)</code>. The 
+ * <code>toJSONString</code> method will be used instead of the default behavior 
+ * of using the Object's <code>toString()</code> method and quoting the result.
+ */
+public interface JSONString {
+    /**
+     * The <code>toJSONString</code> method allows a class to produce its own JSON 
+     * serialization. 
+     * 
+     * @return A strictly syntactically correct JSON text.
+     */
+    public String toJSONString();
+}

http://git-wip-us.apache.org/repos/asf/incubator-geode/blob/1922937f/pulse/src/main/java/com/vmware/gemfire/tools/pulse/internal/json/JSONStringer.java
----------------------------------------------------------------------
diff --git a/pulse/src/main/java/com/vmware/gemfire/tools/pulse/internal/json/JSONStringer.java b/pulse/src/main/java/com/vmware/gemfire/tools/pulse/internal/json/JSONStringer.java
new file mode 100644
index 0000000..89b8ab0
--- /dev/null
+++ b/pulse/src/main/java/com/vmware/gemfire/tools/pulse/internal/json/JSONStringer.java
@@ -0,0 +1,78 @@
+package com.vmware.gemfire.tools.pulse.internal.json;
+
+/*
+Copyright (c) 2006 JSON.org
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+The Software shall be used for Good, not Evil.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+import java.io.StringWriter;
+
+/**
+ * JSONStringer provides a quick and convenient way of producing JSON text.
+ * The texts produced strictly conform to JSON syntax rules. No whitespace is
+ * added, so the results are ready for transmission or storage. Each instance of
+ * JSONStringer can produce one JSON text.
+ * <p>
+ * A JSONStringer instance provides a <code>value</code> method for appending
+ * values to the
+ * text, and a <code>key</code>
+ * method for adding keys before values in objects. There are <code>array</code>
+ * and <code>endArray</code> methods that make and bound array values, and
+ * <code>object</code> and <code>endObject</code> methods which make and bound
+ * object values. All of these methods return the JSONWriter instance,
+ * permitting cascade style. For example, <pre>
+ * myString = new JSONStringer()
+ *     .object()
+ *         .key("JSON")
+ *         .value("Hello, World!")
+ *     .endObject()
+ *     .toString();</pre> which produces the string <pre>
+ * {"JSON":"Hello, World!"}</pre>
+ * <p>
+ * The first method called must be <code>array</code> or <code>object</code>.
+ * There are no methods for adding commas or colons. JSONStringer adds them for
+ * you. Objects and arrays can be nested up to 20 levels deep.
+ * <p>
+ * This can sometimes be easier than using a JSONObject to build a string.
+ * @author JSON.org
+ * @version 2008-09-18
+ */
+public class JSONStringer extends JSONWriter {
+    /**
+     * Make a fresh JSONStringer. It can be used to build one JSON text.
+     */
+    public JSONStringer() {
+        super(new StringWriter());
+    }
+
+    /**
+     * Return the JSON text. This method is used to obtain the product of the
+     * JSONStringer instance. It will return <code>null</code> if there was a
+     * problem in the construction of the JSON text (such as the calls to
+     * <code>array</code> were not properly balanced with calls to
+     * <code>endArray</code>).
+     * @return The JSON text.
+     */
+    public String toString() {
+        return this.mode == 'd' ? this.writer.toString() : null;
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-geode/blob/1922937f/pulse/src/main/java/com/vmware/gemfire/tools/pulse/internal/json/JSONTokener.java
----------------------------------------------------------------------
diff --git a/pulse/src/main/java/com/vmware/gemfire/tools/pulse/internal/json/JSONTokener.java b/pulse/src/main/java/com/vmware/gemfire/tools/pulse/internal/json/JSONTokener.java
new file mode 100644
index 0000000..d2c802a
--- /dev/null
+++ b/pulse/src/main/java/com/vmware/gemfire/tools/pulse/internal/json/JSONTokener.java
@@ -0,0 +1,446 @@
+package com.vmware.gemfire.tools.pulse.internal.json;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.Reader;
+import java.io.StringReader;
+
+/*
+Copyright (c) 2002 JSON.org
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+The Software shall be used for Good, not Evil.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+/**
+ * A JSONTokener takes a source string and extracts characters and tokens from
+ * it. It is used by the JSONObject and JSONArray constructors to parse
+ * JSON source strings.
+ * @author JSON.org
+ * @version 2012-02-16
+ */
+public class JSONTokener {
+
+    private long    character;
+    private boolean eof;
+    private long    index;
+    private long    line;
+    private char    previous;
+    private Reader  reader;
+    private boolean usePrevious;
+
+
+    /**
+     * Construct a JSONTokener from a Reader.
+     *
+     * @param reader     A reader.
+     */
+    public JSONTokener(Reader reader) {
+        this.reader = reader.markSupported()
+            ? reader
+            : new BufferedReader(reader);
+        this.eof = false;
+        this.usePrevious = false;
+        this.previous = 0;
+        this.index = 0;
+        this.character = 1;
+        this.line = 1;
+    }
+
+
+    /**
+     * Construct a JSONTokener from an InputStream.
+     */
+    public JSONTokener(InputStream inputStream) throws JSONException {
+        this(new InputStreamReader(inputStream));
+    }
+
+
+    /**
+     * Construct a JSONTokener from a string.
+     *
+     * @param s     A source string.
+     */
+    public JSONTokener(String s) {
+        this(new StringReader(s));
+    }
+
+
+    /**
+     * Back up one character. This provides a sort of lookahead capability,
+     * so that you can test for a digit or letter before attempting to parse
+     * the next number or identifier.
+     */
+    public void back() throws JSONException {
+        if (this.usePrevious || this.index <= 0) {
+            throw new JSONException("Stepping back two steps is not supported");
+        }
+        this.index -= 1;
+        this.character -= 1;
+        this.usePrevious = true;
+        this.eof = false;
+    }
+
+
+    /**
+     * Get the hex value of a character (base16).
+     * @param c A character between '0' and '9' or between 'A' and 'F' or
+     * between 'a' and 'f'.
+     * @return  An int between 0 and 15, or -1 if c was not a hex digit.
+     */
+    public static int dehexchar(char c) {
+        if (c >= '0' && c <= '9') {
+            return c - '0';
+        }
+        if (c >= 'A' && c <= 'F') {
+            return c - ('A' - 10);
+        }
+        if (c >= 'a' && c <= 'f') {
+            return c - ('a' - 10);
+        }
+        return -1;
+    }
+
+    public boolean end() {
+        return this.eof && !this.usePrevious;
+    }
+
+
+    /**
+     * Determine if the source string still contains characters that next()
+     * can consume.
+     * @return true if not yet at the end of the source.
+     */
+    public boolean more() throws JSONException {
+        this.next();
+        if (this.end()) {
+            return false;
+        }
+        this.back();
+        return true;
+    }
+
+
+    /**
+     * Get the next character in the source string.
+     *
+     * @return The next character, or 0 if past the end of the source string.
+     */
+    public char next() throws JSONException {
+        int c;
+        if (this.usePrevious) {
+            this.usePrevious = false;
+            c = this.previous;
+        } else {
+            try {
+                c = this.reader.read();
+            } catch (IOException exception) {
+                throw new JSONException(exception);
+            }
+
+            if (c <= 0) { // End of stream
+                this.eof = true;
+                c = 0;
+            }
+        }
+        this.index += 1;
+        if (this.previous == '\r') {
+            this.line += 1;
+            this.character = c == '\n' ? 0 : 1;
+        } else if (c == '\n') {
+            this.line += 1;
+            this.character = 0;
+        } else {
+            this.character += 1;
+        }
+        this.previous = (char) c;
+        return this.previous;
+    }
+
+
+    /**
+     * Consume the next character, and check that it matches a specified
+     * character.
+     * @param c The character to match.
+     * @return The character.
+     * @throws JSONException if the character does not match.
+     */
+    public char next(char c) throws JSONException {
+        char n = this.next();
+        if (n != c) {
+            throw this.syntaxError("Expected '" + c + "' and instead saw '" +
+                    n + "'");
+        }
+        return n;
+    }
+
+
+    /**
+     * Get the next n characters.
+     *
+     * @param n     The number of characters to take.
+     * @return      A string of n characters.
+     * @throws JSONException
+     *   Substring bounds error if there are not
+     *   n characters remaining in the source string.
+     */
+     public String next(int n) throws JSONException {
+         if (n == 0) {
+             return "";
+         }
+
+         char[] chars = new char[n];
+         int pos = 0;
+
+         while (pos < n) {
+             chars[pos] = this.next();
+             if (this.end()) {
+                 throw this.syntaxError("Substring bounds error");
+             }
+             pos += 1;
+         }
+         return new String(chars);
+     }
+
+
+    /**
+     * Get the next char in the string, skipping whitespace.
+     * @throws JSONException
+     * @return  A character, or 0 if there are no more characters.
+     */
+    public char nextClean() throws JSONException {
+        for (;;) {
+            char c = this.next();
+            if (c == 0 || c > ' ') {
+                return c;
+            }
+        }
+    }
+
+
+    /**
+     * Return the characters up to the next close quote character.
+     * Backslash processing is done. The formal JSON format does not
+     * allow strings in single quotes, but an implementation is allowed to
+     * accept them.
+     * @param quote The quoting character, either
+     *      <code>"</code>&nbsp;<small>(double quote)</small> or
+     *      <code>'</code>&nbsp;<small>(single quote)</small>.
+     * @return      A String.
+     * @throws JSONException Unterminated string.
+     */
+    public String nextString(char quote) throws JSONException {
+        char c;
+        StringBuffer sb = new StringBuffer();
+        for (;;) {
+            c = this.next();
+            switch (c) {
+            case 0:
+            case '\n':
+            case '\r':
+                throw this.syntaxError("Unterminated string");
+            case '\\':
+                c = this.next();
+                switch (c) {
+                case 'b':
+                    sb.append('\b');
+                    break;
+                case 't':
+                    sb.append('\t');
+                    break;
+                case 'n':
+                    sb.append('\n');
+                    break;
+                case 'f':
+                    sb.append('\f');
+                    break;
+                case 'r':
+                    sb.append('\r');
+                    break;
+                case 'u':
+                    sb.append((char)Integer.parseInt(this.next(4), 16));
+                    break;
+                case '"':
+                case '\'':
+                case '\\':
+                case '/':
+                    sb.append(c);
+                    break;
+                default:
+                    throw this.syntaxError("Illegal escape.");
+                }
+                break;
+            default:
+                if (c == quote) {
+                    return sb.toString();
+                }
+                sb.append(c);
+            }
+        }
+    }
+
+
+    /**
+     * Get the text up but not including the specified character or the
+     * end of line, whichever comes first.
+     * @param  delimiter A delimiter character.
+     * @return   A string.
+     */
+    public String nextTo(char delimiter) throws JSONException {
+        StringBuffer sb = new StringBuffer();
+        for (;;) {
+            char c = this.next();
+            if (c == delimiter || c == 0 || c == '\n' || c == '\r') {
+                if (c != 0) {
+                    this.back();
+                }
+                return sb.toString().trim();
+            }
+            sb.append(c);
+        }
+    }
+
+
+    /**
+     * Get the text up but not including one of the specified delimiter
+     * characters or the end of line, whichever comes first.
+     * @param delimiters A set of delimiter characters.
+     * @return A string, trimmed.
+     */
+    public String nextTo(String delimiters) throws JSONException {
+        char c;
+        StringBuffer sb = new StringBuffer();
+        for (;;) {
+            c = this.next();
+            if (delimiters.indexOf(c) >= 0 || c == 0 ||
+                    c == '\n' || c == '\r') {
+                if (c != 0) {
+                    this.back();
+                }
+                return sb.toString().trim();
+            }
+            sb.append(c);
+        }
+    }
+
+
+    /**
+     * Get the next value. The value can be a Boolean, Double, Integer,
+     * JSONArray, JSONObject, Long, or String, or the JSONObject.NULL object.
+     * @throws JSONException If syntax error.
+     *
+     * @return An object.
+     */
+    public Object nextValue() throws JSONException {
+        char c = this.nextClean();
+        String string;
+
+        switch (c) {
+            case '"':
+            case '\'':
+                return this.nextString(c);
+            case '{':
+                this.back();
+                return new JSONObject(this);
+            case '[':
+                this.back();
+                return new JSONArray(this);
+        }
+
+        /*
+         * Handle unquoted text. This could be the values true, false, or
+         * null, or it can be a number. An implementation (such as this one)
+         * is allowed to also accept non-standard forms.
+         *
+         * Accumulate characters until we reach the end of the text or a
+         * formatting character.
+         */
+
+        StringBuffer sb = new StringBuffer();
+        while (c >= ' ' && ",:]}/\\\"[{;=#".indexOf(c) < 0) {
+            sb.append(c);
+            c = this.next();
+        }
+        this.back();
+
+        string = sb.toString().trim();
+        if ("".equals(string)) {
+            throw this.syntaxError("Missing value");
+        }
+        return JSONObject.stringToValue(string);
+    }
+
+
+    /**
+     * Skip characters until the next character is the requested character.
+     * If the requested character is not found, no characters are skipped.
+     * @param to A character to skip to.
+     * @return The requested character, or zero if the requested character
+     * is not found.
+     */
+    public char skipTo(char to) throws JSONException {
+        char c;
+        try {
+            long startIndex = this.index;
+            long startCharacter = this.character;
+            long startLine = this.line;
+            this.reader.mark(1000000);
+            do {
+                c = this.next();
+                if (c == 0) {
+                    this.reader.reset();
+                    this.index = startIndex;
+                    this.character = startCharacter;
+                    this.line = startLine;
+                    return c;
+                }
+            } while (c != to);
+        } catch (IOException exc) {
+            throw new JSONException(exc);
+        }
+
+        this.back();
+        return c;
+    }
+
+
+    /**
+     * Make a JSONException to signal a syntax error.
+     *
+     * @param message The error message.
+     * @return  A JSONException object, suitable for throwing
+     */
+    public JSONException syntaxError(String message) {
+        return new JSONException(message + this.toString());
+    }
+
+
+    /**
+     * Make a printable string of this JSONTokener.
+     *
+     * @return " at {index} [character {character} line {line}]"
+     */
+    public String toString() {
+        return " at " + this.index + " [character " + this.character + " line " +
+            this.line + "]";
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-geode/blob/1922937f/pulse/src/main/java/com/vmware/gemfire/tools/pulse/internal/json/JSONWriter.java
----------------------------------------------------------------------
diff --git a/pulse/src/main/java/com/vmware/gemfire/tools/pulse/internal/json/JSONWriter.java b/pulse/src/main/java/com/vmware/gemfire/tools/pulse/internal/json/JSONWriter.java
new file mode 100644
index 0000000..887f2ed
--- /dev/null
+++ b/pulse/src/main/java/com/vmware/gemfire/tools/pulse/internal/json/JSONWriter.java
@@ -0,0 +1,327 @@
+package com.vmware.gemfire.tools.pulse.internal.json;
+
+import java.io.IOException;
+import java.io.Writer;
+
+/*
+Copyright (c) 2006 JSON.org
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+The Software shall be used for Good, not Evil.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+/**
+ * JSONWriter provides a quick and convenient way of producing JSON text.
+ * The texts produced strictly conform to JSON syntax rules. No whitespace is
+ * added, so the results are ready for transmission or storage. Each instance of
+ * JSONWriter can produce one JSON text.
+ * <p>
+ * A JSONWriter instance provides a <code>value</code> method for appending
+ * values to the
+ * text, and a <code>key</code>
+ * method for adding keys before values in objects. There are <code>array</code>
+ * and <code>endArray</code> methods that make and bound array values, and
+ * <code>object</code> and <code>endObject</code> methods which make and bound
+ * object values. All of these methods return the JSONWriter instance,
+ * permitting a cascade style. For example, <pre>
+ * new JSONWriter(myWriter)
+ *     .object()
+ *         .key("JSON")
+ *         .value("Hello, World!")
+ *     .endObject();</pre> which writes <pre>
+ * {"JSON":"Hello, World!"}</pre>
+ * <p>
+ * The first method called must be <code>array</code> or <code>object</code>.
+ * There are no methods for adding commas or colons. JSONWriter adds them for
+ * you. Objects and arrays can be nested up to 20 levels deep.
+ * <p>
+ * This can sometimes be easier than using a JSONObject to build a string.
+ * @author JSON.org
+ * @version 2011-11-24
+ */
+public class JSONWriter {
+    private static final int maxdepth = 200;
+
+    /**
+     * The comma flag determines if a comma should be output before the next
+     * value.
+     */
+    private boolean comma;
+
+    /**
+     * The current mode. Values:
+     * 'a' (array),
+     * 'd' (done),
+     * 'i' (initial),
+     * 'k' (key),
+     * 'o' (object).
+     */
+    protected char mode;
+
+    /**
+     * The object/array stack.
+     */
+    private final JSONObject stack[];
+
+    /**
+     * The stack top index. A value of 0 indicates that the stack is empty.
+     */
+    private int top;
+
+    /**
+     * The writer that will receive the output.
+     */
+    protected Writer writer;
+
+    /**
+     * Make a fresh JSONWriter. It can be used to build one JSON text.
+     */
+    public JSONWriter(Writer w) {
+        this.comma = false;
+        this.mode = 'i';
+        this.stack = new JSONObject[maxdepth];
+        this.top = 0;
+        this.writer = w;
+    }
+
+    /**
+     * Append a value.
+     * @param string A string value.
+     * @return this
+     * @throws JSONException If the value is out of sequence.
+     */
+    private JSONWriter append(String string) throws JSONException {
+        if (string == null) {
+            throw new JSONException("Null pointer");
+        }
+        if (this.mode == 'o' || this.mode == 'a') {
+            try {
+                if (this.comma && this.mode == 'a') {
+                    this.writer.write(',');
+                }
+                this.writer.write(string);
+            } catch (IOException e) {
+                throw new JSONException(e);
+            }
+            if (this.mode == 'o') {
+                this.mode = 'k';
+            }
+            this.comma = true;
+            return this;
+        }
+        throw new JSONException("Value out of sequence.");
+    }
+
+    /**
+     * Begin appending a new array. All values until the balancing
+     * <code>endArray</code> will be appended to this array. The
+     * <code>endArray</code> method must be called to mark the array's end.
+     * @return this
+     * @throws JSONException If the nesting is too deep, or if the object is
+     * started in the wrong place (for example as a key or after the end of the
+     * outermost array or object).
+     */
+    public JSONWriter array() throws JSONException {
+        if (this.mode == 'i' || this.mode == 'o' || this.mode == 'a') {
+            this.push(null);
+            this.append("[");
+            this.comma = false;
+            return this;
+        }
+        throw new JSONException("Misplaced array.");
+    }
+
+    /**
+     * End something.
+     * @param mode Mode
+     * @param c Closing character
+     * @return this
+     * @throws JSONException If unbalanced.
+     */
+    private JSONWriter end(char mode, char c) throws JSONException {
+        if (this.mode != mode) {
+            throw new JSONException(mode == 'a'
+                ? "Misplaced endArray."
+                : "Misplaced endObject.");
+        }
+        this.pop(mode);
+        try {
+            this.writer.write(c);
+        } catch (IOException e) {
+            throw new JSONException(e);
+        }
+        this.comma = true;
+        return this;
+    }
+
+    /**
+     * End an array. This method most be called to balance calls to
+     * <code>array</code>.
+     * @return this
+     * @throws JSONException If incorrectly nested.
+     */
+    public JSONWriter endArray() throws JSONException {
+        return this.end('a', ']');
+    }
+
+    /**
+     * End an object. This method most be called to balance calls to
+     * <code>object</code>.
+     * @return this
+     * @throws JSONException If incorrectly nested.
+     */
+    public JSONWriter endObject() throws JSONException {
+        return this.end('k', '}');
+    }
+
+    /**
+     * Append a key. The key will be associated with the next value. In an
+     * object, every value must be preceded by a key.
+     * @param string A key string.
+     * @return this
+     * @throws JSONException If the key is out of place. For example, keys
+     *  do not belong in arrays or if the key is null.
+     */
+    public JSONWriter key(String string) throws JSONException {
+        if (string == null) {
+            throw new JSONException("Null key.");
+        }
+        if (this.mode == 'k') {
+            try {
+                this.stack[this.top - 1].putOnce(string, Boolean.TRUE);
+                if (this.comma) {
+                    this.writer.write(',');
+                }
+                this.writer.write(JSONObject.quote(string));
+                this.writer.write(':');
+                this.comma = false;
+                this.mode = 'o';
+                return this;
+            } catch (IOException e) {
+                throw new JSONException(e);
+            }
+        }
+        throw new JSONException("Misplaced key.");
+    }
+
+
+    /**
+     * Begin appending a new object. All keys and values until the balancing
+     * <code>endObject</code> will be appended to this object. The
+     * <code>endObject</code> method must be called to mark the object's end.
+     * @return this
+     * @throws JSONException If the nesting is too deep, or if the object is
+     * started in the wrong place (for example as a key or after the end of the
+     * outermost array or object).
+     */
+    public JSONWriter object() throws JSONException {
+        if (this.mode == 'i') {
+            this.mode = 'o';
+        }
+        if (this.mode == 'o' || this.mode == 'a') {
+            this.append("{");
+            this.push(new JSONObject());
+            this.comma = false;
+            return this;
+        }
+        throw new JSONException("Misplaced object.");
+
+    }
+
+
+    /**
+     * Pop an array or object scope.
+     * @param c The scope to close.
+     * @throws JSONException If nesting is wrong.
+     */
+    private void pop(char c) throws JSONException {
+        if (this.top <= 0) {
+            throw new JSONException("Nesting error.");
+        }
+        char m = this.stack[this.top - 1] == null ? 'a' : 'k';
+        if (m != c) {
+            throw new JSONException("Nesting error.");
+        }
+        this.top -= 1;
+        this.mode = this.top == 0
+            ? 'd'
+            : this.stack[this.top - 1] == null
+            ? 'a'
+            : 'k';
+    }
+
+    /**
+     * Push an array or object scope.
+     * @param c The scope to open.
+     * @throws JSONException If nesting is too deep.
+     */
+    private void push(JSONObject jo) throws JSONException {
+        if (this.top >= maxdepth) {
+            throw new JSONException("Nesting too deep.");
+        }
+        this.stack[this.top] = jo;
+        this.mode = jo == null ? 'a' : 'k';
+        this.top += 1;
+    }
+
+
+    /**
+     * Append either the value <code>true</code> or the value
+     * <code>false</code>.
+     * @param b A boolean.
+     * @return this
+     * @throws JSONException
+     */
+    public JSONWriter value(boolean b) throws JSONException {
+        return this.append(b ? "true" : "false");
+    }
+
+    /**
+     * Append a double value.
+     * @param d A double.
+     * @return this
+     * @throws JSONException If the number is not finite.
+     */
+    public JSONWriter value(double d) throws JSONException {
+        return this.value(new Double(d));
+    }
+
+    /**
+     * Append a long value.
+     * @param l A long.
+     * @return this
+     * @throws JSONException
+     */
+    public JSONWriter value(long l) throws JSONException {
+        return this.append(Long.toString(l));
+    }
+
+
+    /**
+     * Append an object value.
+     * @param object The object to append. It can be null, or a Boolean, Number,
+     *   String, JSONObject, or JSONArray, or an object that implements JSONString.
+     * @return this
+     * @throws JSONException If the value is out of sequence.
+     */
+    public JSONWriter value(Object object) throws JSONException {
+        return this.append(JSONObject.valueToString(object));
+    }
+}


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