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Posted to commits@olingo.apache.org by ch...@apache.org on 2014/08/28 05:48:26 UTC

[19/51] [partial] rename folder /datajs into /odatajs. no file modification.

http://git-wip-us.apache.org/repos/asf/olingo-odata4-js/blob/d5ec5557/odatajs/src/lib/datajs/utils.js
----------------------------------------------------------------------
diff --git a/odatajs/src/lib/datajs/utils.js b/odatajs/src/lib/datajs/utils.js
new file mode 100644
index 0000000..27af705
--- /dev/null
+++ b/odatajs/src/lib/datajs/utils.js
@@ -0,0 +1,582 @@
+/*
+ * 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.
+ */
+
+/** @module datajs/utils */
+
+
+function inBrowser() {
+    return typeof window !== 'undefined';
+}
+
+/** Creates a new ActiveXObject from the given progId.
+ * @param {String} progId - ProgId string of the desired ActiveXObject.
+ * @returns {Object} The ActiveXObject instance. Null if ActiveX is not supported by the browser.
+ * This function throws whatever exception might occur during the creation
+ * of the ActiveXObject.
+*/
+var activeXObject = function (progId) {
+    
+    if (window.ActiveXObject) {
+        return new window.ActiveXObject(progId);
+    }
+    return null;
+};
+
+/** Checks whether the specified value is different from null and undefined.
+ * @param [value] Value to check ( may be null)
+ * @returns {Boolean} true if the value is assigned; false otherwise.
+*/     
+function assigned(value) {
+    return value !== null && value !== undefined;
+}
+
+/** Checks whether the specified item is in the array.
+ * @param {Array} [arr] Array to check in.
+ * @param item - Item to look for.
+ * @returns {Boolean} true if the item is contained, false otherwise.
+*/
+function contains(arr, item) {
+    var i, len;
+    for (i = 0, len = arr.length; i < len; i++) {
+        if (arr[i] === item) {
+            return true;
+        }
+    }
+    return false;
+}
+
+/** Given two values, picks the first one that is not undefined.
+ * @param a - First value.
+ * @param b - Second value.
+ * @returns a if it's a defined value; else b.</returns>
+ */
+function defined(a, b) {
+    return (a !== undefined) ? a : b;
+}
+
+/** Delays the invocation of the specified function until execution unwinds.
+ * @param {Function} callback - Callback function.
+ */
+function delay(callback) {
+
+    if (arguments.length === 1) {
+        window.setTimeout(callback, 0);
+        return;
+    }
+
+    var args = Array.prototype.slice.call(arguments, 1);
+    window.setTimeout(function () {
+        callback.apply(this, args);
+    }, 0);
+}
+
+/** Throws an exception in case that a condition evaluates to false.
+ * @param {Boolean} condition - Condition to evaluate.
+ * @param {String} message - Message explaining the assertion.
+ * @param {Object} data - Additional data to be included in the exception.
+ */
+// DATAJS INTERNAL START
+function djsassert(condition, message, data) {
+
+
+    if (!condition) {
+        throw { message: "Assert fired: " + message, data: data };
+    }
+}
+// DATAJS INTERNAL END
+
+/** Extends the target with the specified values.
+ * @param {Object} target - Object to add properties to.
+ * @param {Object} values - Object with properties to add into target.
+ * @returns {Object} The target object.
+*/
+function extend(target, values) {
+    for (var name in values) {
+        target[name] = values[name];
+    }
+
+    return target;
+}
+
+function find(arr, callback) {
+    /** Returns the first item in the array that makes the callback function true.
+     * @param {Array} [arr] Array to check in. ( may be null)
+     * @param {Function} callback - Callback function to invoke once per item in the array.
+     * @returns The first item that makes the callback return true; null otherwise or if the array is null.
+    */
+
+    if (arr) {
+        var i, len;
+        for (i = 0, len = arr.length; i < len; i++) {
+            if (callback(arr[i])) {
+                return arr[i];
+            }
+        }
+    }
+    return null;
+}
+
+function isArray(value) {
+    /** Checks whether the specified value is an array object.
+     * @param value - Value to check.
+     * @returns {Boolean} true if the value is an array object; false otherwise.
+     */
+
+    return Object.prototype.toString.call(value) === "[object Array]";
+}
+
+/** Checks whether the specified value is a Date object.
+ * @param value - Value to check.
+ * @returns {Boolean} true if the value is a Date object; false otherwise.
+ */
+function isDate(value) {
+    return Object.prototype.toString.call(value) === "[object Date]";
+}
+
+/** Tests whether a value is an object.
+ * @param value - Value to test.
+ * @returns {Boolean} True is the value is an object; false otherwise.
+ * Per javascript rules, null and array values are objects and will cause this function to return true.
+ */
+function isObject(value) {
+    return typeof value === "object";
+}
+
+/** Parses a value in base 10.
+ * @param {String} value - String value to parse.
+ * @returns {Number} The parsed value, NaN if not a valid value.
+*/   
+function parseInt10(value) {
+    return parseInt(value, 10);
+}
+
+/** Renames a property in an object.
+ * @param {Object} obj - Object in which the property will be renamed.
+ * @param {String} oldName - Name of the property that will be renamed.
+ * @param {String} newName - New name of the property.
+ * This function will not do anything if the object doesn't own a property with the specified old name.
+ */
+function renameProperty(obj, oldName, newName) {
+    if (obj.hasOwnProperty(oldName)) {
+        obj[newName] = obj[oldName];
+        delete obj[oldName];
+    }
+}
+
+/** Default error handler.
+ * @param {Object} error - Error to handle.
+ */
+function throwErrorCallback(error) {
+    throw error;
+}
+
+/** Removes leading and trailing whitespaces from a string.
+ * @param {String str String to trim
+ * @returns {String} The string with no leading or trailing whitespace.
+ */
+function trimString(str) {
+    if (str.trim) {
+        return str.trim();
+    }
+
+    return str.replace(/^\s+|\s+$/g, '');
+}
+
+/** Returns a default value in place of undefined.
+ * @param [value] Value to check (may be null)
+ * @param defaultValue - Value to return if value is undefined.
+ * @returns value if it's defined; defaultValue otherwise.
+ * This should only be used for cases where falsy values are valid;
+ * otherwise the pattern should be 'x = (value) ? value : defaultValue;'.
+ */
+function undefinedDefault(value, defaultValue) {
+    return (value !== undefined) ? value : defaultValue;
+}
+
+// Regular expression that splits a uri into its components:
+// 0 - is the matched string.
+// 1 - is the scheme.
+// 2 - is the authority.
+// 3 - is the path.
+// 4 - is the query.
+// 5 - is the fragment.
+var uriRegEx = /^([^:\/?#]+:)?(\/\/[^\/?#]*)?([^?#:]+)?(\?[^#]*)?(#.*)?/;
+var uriPartNames = ["scheme", "authority", "path", "query", "fragment"];
+
+/** Gets information about the components of the specified URI.
+ * @param {String} uri - URI to get information from.
+ * @return  {Object} An object with an isAbsolute flag and part names (scheme, authority, etc.) if available.
+ */
+function getURIInfo(uri) {
+    var result = { isAbsolute: false };
+
+    if (uri) {
+        var matches = uriRegEx.exec(uri);
+        if (matches) {
+            var i, len;
+            for (i = 0, len = uriPartNames.length; i < len; i++) {
+                if (matches[i + 1]) {
+                    result[uriPartNames[i]] = matches[i + 1];
+                }
+            }
+        }
+        if (result.scheme) {
+            result.isAbsolute = true;
+        }
+    }
+
+    return result;
+}
+
+/** Builds a URI string from its components.
+ * @param {Object} uriInfo -  An object with uri parts (scheme, authority, etc.).
+ * @returns {String} URI string.
+ */
+function getURIFromInfo(uriInfo) {
+    return "".concat(
+        uriInfo.scheme || "",
+        uriInfo.authority || "",
+        uriInfo.path || "",
+        uriInfo.query || "",
+        uriInfo.fragment || "");
+}
+
+// Regular expression that splits a uri authority into its subcomponents:
+// 0 - is the matched string.
+// 1 - is the userinfo subcomponent.
+// 2 - is the host subcomponent.
+// 3 - is the port component.
+var uriAuthorityRegEx = /^\/{0,2}(?:([^@]*)@)?([^:]+)(?::{1}(\d+))?/;
+
+// Regular expression that matches percentage enconded octects (i.e %20 or %3A);
+var pctEncodingRegEx = /%[0-9A-F]{2}/ig;
+
+/** Normalizes the casing of a URI.
+ * @param {String} uri - URI to normalize, absolute or relative.
+ * @returns {String} The URI normalized to lower case.
+*/
+function normalizeURICase(uri) {
+    var uriInfo = getURIInfo(uri);
+    var scheme = uriInfo.scheme;
+    var authority = uriInfo.authority;
+
+    if (scheme) {
+        uriInfo.scheme = scheme.toLowerCase();
+        if (authority) {
+            var matches = uriAuthorityRegEx.exec(authority);
+            if (matches) {
+                uriInfo.authority = "//" +
+                (matches[1] ? matches[1] + "@" : "") +
+                (matches[2].toLowerCase()) +
+                (matches[3] ? ":" + matches[3] : "");
+            }
+        }
+    }
+
+    uri = getURIFromInfo(uriInfo);
+
+    return uri.replace(pctEncodingRegEx, function (str) {
+        return str.toLowerCase();
+    });
+}
+
+/** Normalizes a possibly relative URI with a base URI.
+ * @param {String} uri - URI to normalize, absolute or relative
+ * @param {String} base - Base URI to compose with (may be null)
+ * @returns {String} The composed URI if relative; the original one if absolute.
+ */
+function normalizeURI(uri, base) {
+    if (!base) {
+        return uri;
+    }
+
+    var uriInfo = getURIInfo(uri);
+    if (uriInfo.isAbsolute) {
+        return uri;
+    }
+
+    var baseInfo = getURIInfo(base);
+    var normInfo = {};
+    var path;
+
+    if (uriInfo.authority) {
+        normInfo.authority = uriInfo.authority;
+        path = uriInfo.path;
+        normInfo.query = uriInfo.query;
+    } else {
+        if (!uriInfo.path) {
+            path = baseInfo.path;
+            normInfo.query = uriInfo.query || baseInfo.query;
+        } else {
+            if (uriInfo.path.charAt(0) === '/') {
+                path = uriInfo.path;
+            } else {
+                path = mergeUriPathWithBase(uriInfo.path, baseInfo.path);
+            }
+            normInfo.query = uriInfo.query;
+        }
+        normInfo.authority = baseInfo.authority;
+    }
+
+    normInfo.path = removeDotsFromPath(path);
+
+    normInfo.scheme = baseInfo.scheme;
+    normInfo.fragment = uriInfo.fragment;
+
+    return getURIFromInfo(normInfo);
+}
+
+/** Merges the path of a relative URI and a base URI.
+ * @param {String} uriPath - Relative URI path.</param>
+ * @param {String} basePath - Base URI path.
+ * @returns {String} A string with the merged path.
+ */
+function mergeUriPathWithBase(uriPath, basePath) {
+    var path = "/";
+    var end;
+
+    if (basePath) {
+        end = basePath.lastIndexOf("/");
+        path = basePath.substring(0, end);
+
+        if (path.charAt(path.length - 1) !== "/") {
+            path = path + "/";
+        }
+    }
+
+    return path + uriPath;
+}
+
+/** Removes the special folders . and .. from a URI's path.
+ * @param {string} path - URI path component.
+ * @returns {String} Path without any . and .. folders.
+ */
+function removeDotsFromPath(path) {
+    var result = "";
+    var segment = "";
+    var end;
+
+    while (path) {
+        if (path.indexOf("..") === 0 || path.indexOf(".") === 0) {
+            path = path.replace(/^\.\.?\/?/g, "");
+        } else if (path.indexOf("/..") === 0) {
+            path = path.replace(/^\/\..\/?/g, "/");
+            end = result.lastIndexOf("/");
+            if (end === -1) {
+                result = "";
+            } else {
+                result = result.substring(0, end);
+            }
+        } else if (path.indexOf("/.") === 0) {
+            path = path.replace(/^\/\.\/?/g, "/");
+        } else {
+            segment = path;
+            end = path.indexOf("/", 1);
+            if (end !== -1) {
+                segment = path.substring(0, end);
+            }
+            result = result + segment;
+            path = path.replace(segment, "");
+        }
+    }
+    return result;
+}
+
+function convertByteArrayToHexString(str) {
+    var arr = [];
+    if (window.atob === undefined) {
+        arr = decodeBase64(str);
+    } else {
+        var binaryStr = window.atob(str);
+        for (var i = 0; i < binaryStr.length; i++) {
+            arr.push(binaryStr.charCodeAt(i));
+        }
+    }
+    var hexValue = "";
+    var hexValues = "0123456789ABCDEF";
+    for (var j = 0; j < arr.length; j++) {
+        var t = arr[j];
+        hexValue += hexValues[t >> 4];
+        hexValue += hexValues[t & 0x0F];
+    }
+    return hexValue;
+}
+
+function decodeBase64(str) {
+    var binaryString = "";
+    for (var i = 0; i < str.length; i++) {
+        var base65IndexValue = getBase64IndexValue(str[i]);
+        var binaryValue = "";
+        if (base65IndexValue !== null) {
+            binaryValue = base65IndexValue.toString(2);
+            binaryString += addBase64Padding(binaryValue);
+        }
+    }
+    var byteArray = [];
+    var numberOfBytes = parseInt(binaryString.length / 8, 10);
+    for (i = 0; i < numberOfBytes; i++) {
+        var intValue = parseInt(binaryString.substring(i * 8, (i + 1) * 8), 2);
+        byteArray.push(intValue);
+    }
+    return byteArray;
+}
+
+function getBase64IndexValue(character) {
+    var asciiCode = character.charCodeAt(0);
+    var asciiOfA = 65;
+    var differenceBetweenZanda = 6;
+    if (asciiCode >= 65 && asciiCode <= 90) {           // between "A" and "Z" inclusive
+        return asciiCode - asciiOfA;
+    } else if (asciiCode >= 97 && asciiCode <= 122) {   // between 'a' and 'z' inclusive
+        return asciiCode - asciiOfA - differenceBetweenZanda;
+    } else if (asciiCode >= 48 && asciiCode <= 57) {    // between '0' and '9' inclusive
+        return asciiCode + 4;
+    } else if (character == "+") {
+        return 62;
+    } else if (character == "/") {
+        return 63;
+    } else {
+        return null;
+    }
+}
+
+function addBase64Padding(binaryString) {
+    while (binaryString.length < 6) {
+        binaryString = "0" + binaryString;
+    }
+    return binaryString;
+
+}
+
+function getJsonValueArraryLength(data) {
+    if (data && data.value) {
+        return data.value.length;
+    }
+
+    return 0;
+}
+
+function sliceJsonValueArray(data, start, end) {
+    if (data === undefined || data.value === undefined) {
+        return data;
+    }
+
+    if (start < 0) {
+        start = 0;
+    }
+
+    var length = getJsonValueArraryLength(data);
+    if (length < end) {
+        end = length;
+    }
+
+    var newdata = {};
+    for (var property in data) {
+        if (property == "value") {
+            newdata[property] = data[property].slice(start, end);
+        } else {
+            newdata[property] = data[property];
+        }
+    }
+
+    return newdata;
+}
+
+function concatJsonValueArray(data, concatData) {
+    if (concatData === undefined || concatData.value === undefined) {
+        return data;
+    }
+
+    if (data === undefined || Object.keys(data).length === 0) {
+        return concatData;
+    }
+
+    if (data.value === undefined) {
+        data.value = concatData.value;
+        return data;
+    }
+
+    data.value = data.value.concat(concatData.value);
+
+    return data;
+}
+
+function endsWith(input, search) {
+    return input.indexOf(search, input.length - search.length) !== -1;
+}
+
+function startsWith (input, search) {
+    return input.indexOf(search) === 0;
+}
+
+function getFormatKind(format, defaultFormatKind) {
+    var formatKind = defaultFormatKind;
+    if (!assigned(format)) {
+        return formatKind;
+    }
+
+    var normalizedFormat = format.toLowerCase();
+    switch (normalizedFormat) {
+        case "none":
+            formatKind = 0;
+            break;
+        case "minimal":
+            formatKind = 1;
+            break;
+        case "full":
+            formatKind = 2;
+            break;
+        default:
+            break;
+    }
+
+    return formatKind;
+}
+
+
+    
+    
+exports.inBrowser = inBrowser;
+exports.activeXObject = activeXObject;
+exports.assigned = assigned;
+exports.contains = contains;
+exports.defined = defined;
+exports.delay = delay;
+exports.djsassert = djsassert;
+exports.extend = extend;
+exports.find = find;
+exports.getURIInfo = getURIInfo;
+exports.isArray = isArray;
+exports.isDate = isDate;
+exports.isObject = isObject;
+exports.normalizeURI = normalizeURI;
+exports.normalizeURICase = normalizeURICase;
+exports.parseInt10 = parseInt10;
+exports.renameProperty = renameProperty;
+exports.throwErrorCallback = throwErrorCallback;
+exports.trimString = trimString;
+exports.undefinedDefault = undefinedDefault;
+exports.decodeBase64 = decodeBase64;
+exports.convertByteArrayToHexString = convertByteArrayToHexString;
+exports.getJsonValueArraryLength = getJsonValueArraryLength;
+exports.sliceJsonValueArray = sliceJsonValueArray;
+exports.concatJsonValueArray = concatJsonValueArray;
+exports.startsWith = startsWith;
+exports.endsWith = endsWith;
+exports.getFormatKind = getFormatKind;
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/olingo-odata4-js/blob/d5ec5557/odatajs/src/lib/datajs/xml.js
----------------------------------------------------------------------
diff --git a/odatajs/src/lib/datajs/xml.js b/odatajs/src/lib/datajs/xml.js
new file mode 100644
index 0000000..b8af4fe
--- /dev/null
+++ b/odatajs/src/lib/datajs/xml.js
@@ -0,0 +1,816 @@
+/*
+ * 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.
+ */
+ 
+
+/** @module datajs/xml */
+
+var utils    = require('./utils.js');
+
+var activeXObject = utils.activeXObject;
+var djsassert = utils.djsassert;
+var extend = utils.extend;
+var isArray = utils.isArray;
+var normalizeURI = utils.normalizeURI;
+
+// URI prefixes to generate smaller code.
+var http = "http://";
+var w3org = http + "www.w3.org/";               // http://www.w3.org/
+
+var xhtmlNS = w3org + "1999/xhtml";             // http://www.w3.org/1999/xhtml
+var xmlnsNS = w3org + "2000/xmlns/";            // http://www.w3.org/2000/xmlns/
+var xmlNS = w3org + "XML/1998/namespace";       // http://www.w3.org/XML/1998/namespace
+
+var mozillaParserErroNS = http + "www.mozilla.org/newlayout/xml/parsererror.xml";
+
+/** Checks whether the specified string has leading or trailing spaces.
+ * @param {String} text - String to check.
+ * @returns {Boolean} true if text has any leading or trailing whitespace; false otherwise.
+ */
+function hasLeadingOrTrailingWhitespace(text) {
+    var re = /(^\s)|(\s$)/;
+    return re.test(text);
+}
+
+/** Determines whether the specified text is empty or whitespace.
+ * @param {String} text - Value to inspect.
+ * @returns {Boolean} true if the text value is empty or all whitespace; false otherwise.
+ */
+function isWhitespace(text) {
+
+
+    var ws = /^\s*$/;
+    return text === null || ws.test(text);
+}
+
+/** Determines whether the specified element has xml:space='preserve' applied.
+ * @param domElement - Element to inspect.
+ * @returns {Boolean} Whether xml:space='preserve' is in effect.
+ */
+function isWhitespacePreserveContext(domElement) {
+
+
+    while (domElement !== null && domElement.nodeType === 1) {
+        var val = xmlAttributeValue(domElement, "space", xmlNS);
+        if (val === "preserve") {
+            return true;
+        } else if (val === "default") {
+            break;
+        } else {
+            domElement = domElement.parentNode;
+        }
+    }
+
+    return false;
+}
+
+/** Determines whether the attribute is a XML namespace declaration.
+ * @param domAttribute - Element to inspect.
+ * @return {Boolean} True if the attribute is a namespace declaration (its name is 'xmlns' or starts with 'xmlns:'; false otherwise.
+ */
+function isXmlNSDeclaration(domAttribute) {
+    var nodeName = domAttribute.nodeName;
+    return nodeName == "xmlns" || nodeName.indexOf("xmlns:") === 0;
+}
+
+/** Safely set as property in an object by invoking obj.setProperty.
+ * @param obj - Object that exposes a setProperty method.
+ * @param {String} name - Property name
+ * @param value - Property value.
+ */
+function safeSetProperty(obj, name, value) {
+
+
+    try {
+        obj.setProperty(name, value);
+    } catch (_) { }
+}
+
+/** Creates an configures new MSXML 3.0 ActiveX object.
+ * @returns {Object} New MSXML 3.0 ActiveX object.
+ * This function throws any exception that occurs during the creation
+ * of the MSXML 3.0 ActiveX object.
+ */
+function msXmlDom3() {
+    var msxml3 = activeXObject("Msxml2.DOMDocument.3.0");
+    if (msxml3) {
+        safeSetProperty(msxml3, "ProhibitDTD", true);
+        safeSetProperty(msxml3, "MaxElementDepth", 256);
+        safeSetProperty(msxml3, "AllowDocumentFunction", false);
+        safeSetProperty(msxml3, "AllowXsltScript", false);
+    }
+    return msxml3;
+}
+
+/** Creates an configures new MSXML 6.0 or MSXML 3.0 ActiveX object.
+ * @returns {Object} New MSXML 3.0 ActiveX object.
+ * This function will try to create a new MSXML 6.0 ActiveX object. If it fails then
+ * it will fallback to create a new MSXML 3.0 ActiveX object. Any exception that
+ * happens during the creation of the MSXML 6.0 will be handled by the function while
+ * the ones that happend during the creation of the MSXML 3.0 will be thrown.
+ */
+function msXmlDom() {
+    try {
+        var msxml = activeXObject("Msxml2.DOMDocument.6.0");
+        if (msxml) {
+            msxml.async = true;
+        }
+        return msxml;
+    } catch (_) {
+        return msXmlDom3();
+    }
+}
+
+/** Parses an XML string using the MSXML DOM.
+ * @returns {Object} New MSXML DOMDocument node representing the parsed XML string.
+ * This function throws any exception that occurs during the creation
+ * of the MSXML ActiveX object.  It also will throw an exception
+ * in case of a parsing error.
+ */
+function msXmlParse(text) {
+    var dom = msXmlDom();
+    if (!dom) {
+        return null;
+    }
+
+    dom.loadXML(text);
+    var parseError = dom.parseError;
+    if (parseError.errorCode !== 0) {
+        xmlThrowParserError(parseError.reason, parseError.srcText, text);
+    }
+    return dom;
+}
+
+/** Throws a new exception containing XML parsing error information.
+ * @param exceptionOrReason - String indicating the reason of the parsing failure or Object detailing the parsing error.
+ * @param {String} srcText -     String indicating the part of the XML string that caused the parsing error.
+ * @param {String} errorXmlText - XML string for wich the parsing failed.
+ */
+function xmlThrowParserError(exceptionOrReason, srcText, errorXmlText) {
+
+    if (typeof exceptionOrReason === "string") {
+        exceptionOrReason = { message: exceptionOrReason };
+    }
+    throw extend(exceptionOrReason, { srcText: srcText || "", errorXmlText: errorXmlText || "" });
+}
+
+/** Returns an XML DOM document from the specified text.
+ * @param {String} text - Document text.
+ * @returns XML DOM document.
+ * This function will throw an exception in case of a parse error
+ */
+function xmlParse(text) {
+    var domParser = window.DOMParser && new window.DOMParser();
+    var dom;
+
+    if (!domParser) {
+        dom = msXmlParse(text);
+        if (!dom) {
+            xmlThrowParserError("XML DOM parser not supported");
+        }
+        return dom;
+    }
+
+    try {
+        dom = domParser.parseFromString(text, "text/xml");
+    } catch (e) {
+        xmlThrowParserError(e, "", text);
+    }
+
+    var element = dom.documentElement;
+    var nsURI = element.namespaceURI;
+    var localName = xmlLocalName(element);
+
+    // Firefox reports errors by returing the DOM for an xml document describing the problem.
+    if (localName === "parsererror" && nsURI === mozillaParserErroNS) {
+        var srcTextElement = xmlFirstChildElement(element, mozillaParserErroNS, "sourcetext");
+        var srcText = srcTextElement ? xmlNodeValue(srcTextElement) : "";
+        xmlThrowParserError(xmlInnerText(element) || "", srcText, text);
+    }
+
+    // Chrome (and maybe other webkit based browsers) report errors by injecting a header with an error message.
+    // The error may be localized, so instead we simply check for a header as the
+    // top element or descendant child of the document.
+    if (localName === "h3" && nsURI === xhtmlNS || xmlFirstDescendantElement(element, xhtmlNS, "h3")) {
+        var reason = "";
+        var siblings = [];
+        var cursor = element.firstChild;
+        while (cursor) {
+            if (cursor.nodeType === 1) {
+                reason += xmlInnerText(cursor) || "";
+            }
+            siblings.push(cursor.nextSibling);
+            cursor = cursor.firstChild || siblings.shift();
+        }
+        reason += xmlInnerText(element) || "";
+        xmlThrowParserError(reason, "", text);
+    }
+
+    return dom;
+}
+
+/** Builds a XML qualified name string in the form of "prefix:name".
+ * @param {String} prefix - Prefix string (may be null)
+ * @param {String} name - Name string to qualify with the prefix.
+ * @returns {String} Qualified name.
+ */
+function xmlQualifiedName(prefix, name) {
+    return prefix ? prefix + ":" + name : name;
+}
+
+/** Appends a text node into the specified DOM element node.
+ * @param domNode - DOM node for the element.
+ * @param {String} text - Text to append as a child of element.
+*/
+function xmlAppendText(domNode, textNode) {
+    if (hasLeadingOrTrailingWhitespace(textNode.data)) {
+        var attr = xmlAttributeNode(domNode, xmlNS, "space");
+        if (!attr) {
+            attr = xmlNewAttribute(domNode.ownerDocument, xmlNS, xmlQualifiedName("xml", "space"));
+            xmlAppendChild(domNode, attr);
+        }
+        attr.value = "preserve";
+    }
+    domNode.appendChild(textNode);
+    return domNode;
+}
+
+/** Iterates through the XML element's attributes and invokes the callback function for each one.
+ * @param element - Wrapped element to iterate over.
+ * @param {Function} onAttributeCallback - Callback function to invoke with wrapped attribute nodes.
+*/
+function xmlAttributes(element, onAttributeCallback) {
+    var attributes = element.attributes;
+    var i, len;
+    for (i = 0, len = attributes.length; i < len; i++) {
+        onAttributeCallback(attributes.item(i));
+    }
+}
+
+/** Returns the value of a DOM element's attribute.
+ * @param domNode - DOM node for the owning element.
+ * @param {String} localName - Local name of the attribute.
+ * @param {String} nsURI - Namespace URI of the attribute.
+ * @returns {String} - The attribute value, null if not found (may be null)
+ */
+function xmlAttributeValue(domNode, localName, nsURI) {
+
+    var attribute = xmlAttributeNode(domNode, localName, nsURI);
+    return attribute ? xmlNodeValue(attribute) : null;
+}
+
+/** Gets an attribute node from a DOM element.
+ * @param domNode - DOM node for the owning element.
+ * @param {String} localName - Local name of the attribute.
+ * @param {String} nsURI - Namespace URI of the attribute.
+ * @returns The attribute node, null if not found.
+ */
+function xmlAttributeNode(domNode, localName, nsURI) {
+
+    var attributes = domNode.attributes;
+    if (attributes.getNamedItemNS) {
+        return attributes.getNamedItemNS(nsURI || null, localName);
+    }
+
+    return attributes.getQualifiedItem(localName, nsURI) || null;
+}
+
+/** Gets the value of the xml:base attribute on the specified element.
+ * @param domNode - Element to get xml:base attribute value from.
+ * @param [baseURI] - Base URI used to normalize the value of the xml:base attribute ( may be null)
+ * @returns {String} Value of the xml:base attribute if found; the baseURI or null otherwise.
+ */
+function xmlBaseURI(domNode, baseURI) {
+
+    var base = xmlAttributeNode(domNode, "base", xmlNS);
+    return (base ? normalizeURI(base.value, baseURI) : baseURI) || null;
+}
+
+
+/** Iterates through the XML element's child DOM elements and invokes the callback function for each one.
+ * @param element - DOM Node containing the DOM elements to iterate over.
+ * @param {Function} onElementCallback - Callback function to invoke for each child DOM element.
+*/
+function xmlChildElements(domNode, onElementCallback) {
+
+    xmlTraverse(domNode, /*recursive*/false, function (child) {
+        if (child.nodeType === 1) {
+            onElementCallback(child);
+        }
+        // continue traversing.
+        return true;
+    });
+}
+
+/** Gets the descendant element under root that corresponds to the specified path and namespace URI.
+ * @param root - DOM element node from which to get the descendant element.
+ * @param {String} namespaceURI - The namespace URI of the element to match.
+ * @param {String} path - Path to the desired descendant element.
+ * @return The element specified by path and namespace URI.
+ * All the elements in the path are matched against namespaceURI.
+ * The function will stop searching on the first element that doesn't match the namespace and the path.
+ */
+function xmlFindElementByPath(root, namespaceURI, path) {
+    var parts = path.split("/");
+    var i, len;
+    for (i = 0, len = parts.length; i < len; i++) {
+        root = root && xmlFirstChildElement(root, namespaceURI, parts[i]);
+    }
+    return root || null;
+}
+
+/** Gets the DOM element or DOM attribute node under root that corresponds to the specified path and namespace URI.
+ * @param root - DOM element node from which to get the descendant node.
+ * @param {String} namespaceURI - The namespace URI of the node to match.
+ * @param {String} path - Path to the desired descendant node.
+ * @return The node specified by path and namespace URI.</returns>
+
+* This function will traverse the path and match each node associated to a path segement against the namespace URI.
+* The traversal stops when the whole path has been exahusted or a node that doesn't belogong the specified namespace is encountered.
+* The last segment of the path may be decorated with a starting @ character to indicate that the desired node is a DOM attribute.
+*/
+function xmlFindNodeByPath(root, namespaceURI, path) {
+    
+
+    var lastSegmentStart = path.lastIndexOf("/");
+    var nodePath = path.substring(lastSegmentStart + 1);
+    var parentPath = path.substring(0, lastSegmentStart);
+
+    var node = parentPath ? xmlFindElementByPath(root, namespaceURI, parentPath) : root;
+    if (node) {
+        if (nodePath.charAt(0) === "@") {
+            return xmlAttributeNode(node, nodePath.substring(1), namespaceURI);
+        }
+        return xmlFirstChildElement(node, namespaceURI, nodePath);
+    }
+    return null;
+}
+
+/** Returns the first child DOM element under the specified DOM node that matches the specified namespace URI and local name.
+ * @param domNode - DOM node from which the child DOM element is going to be retrieved.
+ * @param {String} [namespaceURI] - 
+ * @param {String} [localName] - 
+ * @return The node's first child DOM element that matches the specified namespace URI and local name; null otherwise.</returns>
+ */
+function xmlFirstChildElement(domNode, namespaceURI, localName) {
+
+    return xmlFirstElementMaybeRecursive(domNode, namespaceURI, localName, /*recursive*/false);
+}
+
+/** Returns the first descendant DOM element under the specified DOM node that matches the specified namespace URI and local name.
+ * @param domNode - DOM node from which the descendant DOM element is going to be retrieved.
+ * @param {String} [namespaceURI] - 
+ * @param {String} [localName] - 
+ * @return The node's first descendant DOM element that matches the specified namespace URI and local name; null otherwise.
+*/
+function xmlFirstDescendantElement(domNode, namespaceURI, localName) {
+    if (domNode.getElementsByTagNameNS) {
+        var result = domNode.getElementsByTagNameNS(namespaceURI, localName);
+        return result.length > 0 ? result[0] : null;
+    }
+    return xmlFirstElementMaybeRecursive(domNode, namespaceURI, localName, /*recursive*/true);
+}
+
+/** Returns the first descendant DOM element under the specified DOM node that matches the specified namespace URI and local name.
+ * @param domNode - DOM node from which the descendant DOM element is going to be retrieved.
+ * @param {String} [namespaceURI] - 
+ * @param {String} [localName] - 
+ * @param {Boolean} recursive 
+ * - True if the search should include all the descendants of the DOM node.  
+ * - False if the search should be scoped only to the direct children of the DOM node.
+ * @return The node's first descendant DOM element that matches the specified namespace URI and local name; null otherwise.
+ */
+function xmlFirstElementMaybeRecursive(domNode, namespaceURI, localName, recursive) {
+
+    var firstElement = null;
+    xmlTraverse(domNode, recursive, function (child) {
+        if (child.nodeType === 1) {
+            var isExpectedNamespace = !namespaceURI || xmlNamespaceURI(child) === namespaceURI;
+            var isExpectedNodeName = !localName || xmlLocalName(child) === localName;
+
+            if (isExpectedNamespace && isExpectedNodeName) {
+                firstElement = child;
+            }
+        }
+        return firstElement === null;
+    });
+    return firstElement;
+}
+
+/** Gets the concatenated value of all immediate child text and CDATA nodes for the specified element.
+ * @param domElement - Element to get values for.
+ * @returns {String} Text for all direct children.
+ */
+function xmlInnerText(xmlElement) {
+
+    var result = null;
+    var root = (xmlElement.nodeType === 9 && xmlElement.documentElement) ? xmlElement.documentElement : xmlElement;
+    var whitespaceAlreadyRemoved = root.ownerDocument.preserveWhiteSpace === false;
+    var whitespacePreserveContext;
+
+    xmlTraverse(root, false, function (child) {
+        if (child.nodeType === 3 || child.nodeType === 4) {
+            // isElementContentWhitespace indicates that this is 'ignorable whitespace',
+            // but it's not defined by all browsers, and does not honor xml:space='preserve'
+            // in some implementations.
+            //
+            // If we can't tell either way, we walk up the tree to figure out whether
+            // xml:space is set to preserve; otherwise we discard pure-whitespace.
+            //
+            // For example <a>  <b>1</b></a>. The space between <a> and <b> is usually 'ignorable'.
+            var text = xmlNodeValue(child);
+            var shouldInclude = whitespaceAlreadyRemoved || !isWhitespace(text);
+            if (!shouldInclude) {
+                // Walk up the tree to figure out whether we are in xml:space='preserve' context
+                // for the cursor (needs to happen only once).
+                if (whitespacePreserveContext === undefined) {
+                    whitespacePreserveContext = isWhitespacePreserveContext(root);
+                }
+
+                shouldInclude = whitespacePreserveContext;
+            }
+
+            if (shouldInclude) {
+                if (!result) {
+                    result = text;
+                } else {
+                    result += text;
+                }
+            }
+        }
+        // Continue traversing?
+        return true;
+    });
+    return result;
+}
+
+/** Returns the localName of a XML node.
+ * @param domNode - DOM node to get the value from.
+ * @returns {String} localName of domNode.
+ */
+function xmlLocalName(domNode) {
+
+    return domNode.localName || domNode.baseName;
+}
+
+/** Returns the namespace URI of a XML node.
+ * @param node - DOM node to get the value from.
+ * @returns {String} Namespace URI of domNode.
+ */
+function xmlNamespaceURI(domNode) {
+
+    return domNode.namespaceURI || null;
+}
+
+/** Returns the value or the inner text of a XML node.
+ * @param node - DOM node to get the value from.
+ * @return Value of the domNode or the inner text if domNode represents a DOM element node.
+ */
+function xmlNodeValue(domNode) {
+    
+    if (domNode.nodeType === 1) {
+        return xmlInnerText(domNode);
+    }
+    return domNode.nodeValue;
+}
+
+/** Walks through the descendants of the domNode and invokes a callback for each node.
+ * @param domNode - DOM node whose descendants are going to be traversed.
+ * @param {Boolean} recursive
+ * - True if the traversal should include all the descenants of the DOM node.
+ * - False if the traversal should be scoped only to the direct children of the DOM node.
+ * @returns {String} Namespace URI of node.
+ */
+function xmlTraverse(domNode, recursive, onChildCallback) {
+
+    var subtrees = [];
+    var child = domNode.firstChild;
+    var proceed = true;
+    while (child && proceed) {
+        proceed = onChildCallback(child);
+        if (proceed) {
+            if (recursive && child.firstChild) {
+                subtrees.push(child.firstChild);
+            }
+            child = child.nextSibling || subtrees.shift();
+        }
+    }
+}
+
+/** Returns the next sibling DOM element of the specified DOM node.
+ * @param domNode - DOM node from which the next sibling is going to be retrieved.
+ * @param {String} [namespaceURI] - 
+ * @param {String} [localName] - 
+ * @return The node's next sibling DOM element, null if there is none.</returns>
+ */
+function xmlSiblingElement(domNode, namespaceURI, localName) {
+
+    var sibling = domNode.nextSibling;
+    while (sibling) {
+        if (sibling.nodeType === 1) {
+            var isExpectedNamespace = !namespaceURI || xmlNamespaceURI(sibling) === namespaceURI;
+            var isExpectedNodeName = !localName || xmlLocalName(sibling) === localName;
+
+            if (isExpectedNamespace && isExpectedNodeName) {
+                return sibling;
+            }
+        }
+        sibling = sibling.nextSibling;
+    }
+    return null;
+}
+
+/** Creates a new empty DOM document node.
+ * @return New DOM document node.</returns>
+ *
+ * This function will first try to create a native DOM document using
+ * the browsers createDocument function.  If the browser doesn't
+ * support this but supports ActiveXObject, then an attempt to create
+ * an MSXML 6.0 DOM will be made. If this attempt fails too, then an attempt
+ * for creating an MXSML 3.0 DOM will be made.  If this last attemp fails or
+ * the browser doesn't support ActiveXObject then an exception will be thrown.
+ */
+function xmlDom() {
+    var implementation = window.document.implementation;
+    return (implementation && implementation.createDocument) ?
+       implementation.createDocument(null, null, null) :
+       msXmlDom();
+}
+
+/** Appends a collection of child nodes or string values to a parent DOM node.
+ * @param parent - DOM node to which the children will be appended.
+ * @param {Array} children - Array containing DOM nodes or string values that will be appended to the parent.
+ * @return The parent with the appended children or string values.</returns>
+ *  If a value in the children collection is a string, then a new DOM text node is going to be created
+ *  for it and then appended to the parent.
+ */
+function xmlAppendChildren(parent, children) {
+    if (!isArray(children)) {
+        return xmlAppendChild(parent, children);
+    }
+
+    var i, len;
+    for (i = 0, len = children.length; i < len; i++) {
+        children[i] && xmlAppendChild(parent, children[i]);
+    }
+    return parent;
+}
+
+/** Appends a child node or a string value to a parent DOM node.
+ * @param parent - DOM node to which the child will be appended.
+ * @param child - Child DOM node or string value to append to the parent.
+ * @return The parent with the appended child or string value.</returns>
+ * If child is a string value, then a new DOM text node is going to be created
+ * for it and then appended to the parent.
+ */
+function xmlAppendChild(parent, child) {
+
+    djsassert(parent !== child, "xmlAppendChild() - parent and child are one and the same!");
+    if (child) {
+        if (typeof child === "string") {
+            return xmlAppendText(parent, xmlNewText(parent.ownerDocument, child));
+        }
+        if (child.nodeType === 2) {
+            parent.setAttributeNodeNS ? parent.setAttributeNodeNS(child) : parent.setAttributeNode(child);
+        } else {
+            parent.appendChild(child);
+        }
+    }
+    return parent;
+}
+
+/** Creates a new DOM attribute node.
+ * @param dom - DOM document used to create the attribute.
+ * @param {String} prefix - Namespace prefix.
+ * @param {String} namespaceURI - Namespace URI.
+ * @return DOM attribute node for the namespace declaration.
+ */
+function xmlNewAttribute(dom, namespaceURI, qualifiedName, value) {
+
+    var attribute =
+        dom.createAttributeNS && dom.createAttributeNS(namespaceURI, qualifiedName) ||
+        dom.createNode(2, qualifiedName, namespaceURI || undefined);
+
+    attribute.value = value || "";
+    return attribute;
+}
+
+/** Creates a new DOM element node.
+ * @param dom - DOM document used to create the DOM element.
+ * @param {String} namespaceURI - Namespace URI of the new DOM element.
+ * @param {String} qualifiedName - Qualified name in the form of "prefix:name" of the new DOM element.
+ * @param {Array} [children] Collection of child DOM nodes or string values that are going to be appended to the new DOM element.
+ * @return New DOM element.</returns>
+ * If a value in the children collection is a string, then a new DOM text node is going to be created
+ * for it and then appended to the new DOM element.
+ */
+function xmlNewElement(dom, nampespaceURI, qualifiedName, children) {
+    var element =
+        dom.createElementNS && dom.createElementNS(nampespaceURI, qualifiedName) ||
+        dom.createNode(1, qualifiedName, nampespaceURI || undefined);
+
+    return xmlAppendChildren(element, children || []);
+}
+
+/** Creates a namespace declaration attribute.
+ * @param dom - DOM document used to create the attribute.
+ * @param {String} namespaceURI - Namespace URI.
+ * @param {String} prefix - Namespace prefix.
+ * @return DOM attribute node for the namespace declaration.</returns>
+ */
+function xmlNewNSDeclaration(dom, namespaceURI, prefix) {
+    return xmlNewAttribute(dom, xmlnsNS, xmlQualifiedName("xmlns", prefix), namespaceURI);
+}
+
+/** Creates a new DOM document fragment node for the specified xml text.
+ * @param dom - DOM document from which the fragment node is going to be created.
+ * @param {String} text XML text to be represented by the XmlFragment.
+ * @return New DOM document fragment object.
+ */
+function xmlNewFragment(dom, text) {
+
+    var value = "<c>" + text + "</c>";
+    var tempDom = xmlParse(value);
+    var tempRoot = tempDom.documentElement;
+    var imported = ("importNode" in dom) ? dom.importNode(tempRoot, true) : tempRoot;
+    var fragment = dom.createDocumentFragment();
+
+    var importedChild = imported.firstChild;
+    while (importedChild) {
+        fragment.appendChild(importedChild);
+        importedChild = importedChild.nextSibling;
+    }
+    return fragment;
+}
+
+/** Creates new DOM text node.
+ * @param dom - DOM document used to create the text node.
+ * @param {String} text - Text value for the DOM text node.
+ * @return DOM text node.</returns>
+ */ 
+function xmlNewText(dom, text) {
+    return dom.createTextNode(text);
+}
+
+/** Creates a new DOM element or DOM attribute node as specified by path and appends it to the DOM tree pointed by root.
+ * @param dom - DOM document used to create the new node.
+ * @param root - DOM element node used as root of the subtree on which the new nodes are going to be created.
+ * @param {String} namespaceURI - Namespace URI of the new DOM element or attribute.
+ * @param {String} namespacePrefix - Prefix used to qualify the name of the new DOM element or attribute.
+ * @param {String} Path - Path string describing the location of the new DOM element or attribute from the root element.
+ * @return DOM element or attribute node for the last segment of the path.</returns>
+
+ * This function will traverse the path and will create a new DOM element with the specified namespace URI and prefix
+ * for each segment that doesn't have a matching element under root.
+ * The last segment of the path may be decorated with a starting @ character. In this case a new DOM attribute node
+ * will be created.
+ */
+function xmlNewNodeByPath(dom, root, namespaceURI, prefix, path) {
+    var name = "";
+    var parts = path.split("/");
+    var xmlFindNode = xmlFirstChildElement;
+    var xmlNewNode = xmlNewElement;
+    var xmlNode = root;
+
+    var i, len;
+    for (i = 0, len = parts.length; i < len; i++) {
+        name = parts[i];
+        if (name.charAt(0) === "@") {
+            name = name.substring(1);
+            xmlFindNode = xmlAttributeNode;
+            xmlNewNode = xmlNewAttribute;
+        }
+
+        var childNode = xmlFindNode(xmlNode, namespaceURI, name);
+        if (!childNode) {
+            childNode = xmlNewNode(dom, namespaceURI, xmlQualifiedName(prefix, name));
+            xmlAppendChild(xmlNode, childNode);
+        }
+        xmlNode = childNode;
+    }
+    return xmlNode;
+}
+
+/** Returns the text representation of the document to which the specified node belongs.
+ * @param root - Wrapped element in the document to serialize.
+ * @returns {String} Serialized document.
+*/
+function xmlSerialize(domNode) {
+    var xmlSerializer = window.XMLSerializer;
+    if (xmlSerializer) {
+        var serializer = new xmlSerializer();
+        return serializer.serializeToString(domNode);
+    }
+
+    if (domNode.xml) {
+        return domNode.xml;
+    }
+
+    throw { message: "XML serialization unsupported" };
+}
+
+/** Returns the XML representation of the all the descendants of the node.
+ * @param domNode - Node to serialize.</param>
+ * @returns {String} The XML representation of all the descendants of the node.
+ */
+function xmlSerializeDescendants(domNode) {
+    var children = domNode.childNodes;
+    var i, len = children.length;
+    if (len === 0) {
+        return "";
+    }
+
+    // Some implementations of the XMLSerializer don't deal very well with fragments that
+    // don't have a DOMElement as their first child. The work around is to wrap all the
+    // nodes in a dummy root node named "c", serialize it and then just extract the text between
+    // the <c> and the </c> substrings.
+
+    var dom = domNode.ownerDocument;
+    var fragment = dom.createDocumentFragment();
+    var fragmentRoot = dom.createElement("c");
+
+    fragment.appendChild(fragmentRoot);
+    // Move the children to the fragment tree.
+    for (i = 0; i < len; i++) {
+        fragmentRoot.appendChild(children[i]);
+    }
+
+    var xml = xmlSerialize(fragment);
+    xml = xml.substr(3, xml.length - 7);
+
+    // Move the children back to the original dom tree.
+    for (i = 0; i < len; i++) {
+        domNode.appendChild(fragmentRoot.childNodes[i]);
+    }
+
+    return xml;
+}
+
+/** Returns the XML representation of the node and all its descendants.
+ * @param domNode - Node to serialize
+ * @returns {String} The XML representation of the node and all its descendants.
+ */
+function xmlSerializeNode(domNode) {
+
+    var xml = domNode.xml;
+    if (xml !== undefined) {
+        return xml;
+    }
+
+    if (window.XMLSerializer) {
+        var serializer = new window.XMLSerializer();
+        return serializer.serializeToString(domNode);
+    }
+
+    throw { message: "XML serialization unsupported" };
+}
+
+exports.http = http;
+exports.w3org = w3org;
+exports.xmlNS = xmlNS;
+exports.xmlnsNS = xmlnsNS;
+
+exports.hasLeadingOrTrailingWhitespace = hasLeadingOrTrailingWhitespace;
+exports.isXmlNSDeclaration = isXmlNSDeclaration;
+exports.xmlAppendChild = xmlAppendChild;
+exports.xmlAppendChildren = xmlAppendChildren;
+exports.xmlAttributeNode = xmlAttributeNode;
+exports.xmlAttributes = xmlAttributes;
+exports.xmlAttributeValue = xmlAttributeValue;
+exports.xmlBaseURI = xmlBaseURI;
+exports.xmlChildElements = xmlChildElements;
+exports.xmlFindElementByPath = xmlFindElementByPath;
+exports.xmlFindNodeByPath = xmlFindNodeByPath;
+exports.xmlFirstChildElement = xmlFirstChildElement;
+exports.xmlFirstDescendantElement = xmlFirstDescendantElement;
+exports.xmlInnerText = xmlInnerText;
+exports.xmlLocalName = xmlLocalName;
+exports.xmlNamespaceURI = xmlNamespaceURI;
+exports.xmlNodeValue = xmlNodeValue;
+exports.xmlDom = xmlDom;
+exports.xmlNewAttribute = xmlNewAttribute;
+exports.xmlNewElement = xmlNewElement;
+exports.xmlNewFragment = xmlNewFragment;
+exports.xmlNewNodeByPath = xmlNewNodeByPath;
+exports.xmlNewNSDeclaration = xmlNewNSDeclaration;
+exports.xmlNewText = xmlNewText;
+exports.xmlParse = xmlParse;
+exports.xmlQualifiedName = xmlQualifiedName;
+exports.xmlSerialize = xmlSerialize;
+exports.xmlSerializeDescendants = xmlSerializeDescendants;
+exports.xmlSiblingElement = xmlSiblingElement;

http://git-wip-us.apache.org/repos/asf/olingo-odata4-js/blob/d5ec5557/odatajs/src/lib/odata.js
----------------------------------------------------------------------
diff --git a/odatajs/src/lib/odata.js b/odatajs/src/lib/odata.js
new file mode 100644
index 0000000..0249aa3
--- /dev/null
+++ b/odatajs/src/lib/odata.js
@@ -0,0 +1,178 @@
+/*
+ * 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.
+ */
+
+ /** @module odata */
+
+// Imports
+var odataUtils    = exports.utils     = require('./odata/utils.js');
+var odataHandler  = exports.handler   = require('./odata/handler.js');
+var odataMetadata = exports.metadata  = require('./odata/metadata.js');
+var odataNet      = exports.net       = require('./odata/net.js');
+var odataJson     = exports.json      = require('./odata/json.js');
+                    exports.batch     = require('./odata/batch.js');
+                    
+
+
+var utils = require('./datajs/utils.js');
+var assigned = utils.assigned;
+
+var defined = utils.defined;
+var throwErrorCallback = utils.throwErrorCallback;
+
+var invokeRequest = odataUtils.invokeRequest;
+var MAX_DATA_SERVICE_VERSION = odataHandler.MAX_DATA_SERVICE_VERSION;
+var prepareRequest = odataUtils.prepareRequest;
+var metadataParser = odataMetadata.metadataParser;
+
+// CONTENT START
+
+var handlers = [odataJson.jsonHandler, odataHandler.textHandler];
+
+/** Dispatches an operation to handlers.
+ * @param {String} handlerMethod - Name of handler method to invoke.
+ * @param {Object} requestOrResponse - request/response argument for delegated call.
+ * @param {Object} context - context argument for delegated call.
+ */
+function dispatchHandler(handlerMethod, requestOrResponse, context) {
+
+    var i, len;
+    for (i = 0, len = handlers.length; i < len && !handlers[i][handlerMethod](requestOrResponse, context); i++) {
+    }
+
+    if (i === len) {
+        throw { message: "no handler for data" };
+    }
+}
+
+/** Default success handler for OData.
+ * @param data - Data to process.
+ */
+exports.defaultSuccess = function (data) {
+
+    window.alert(window.JSON.stringify(data));
+};
+
+exports.defaultError = throwErrorCallback;
+
+exports.defaultHandler = {
+
+        /** Reads the body of the specified response by delegating to JSON handlers.
+        * @param response - Response object.
+        * @param context - Operation context.
+        */
+        read: function (response, context) {
+
+            if (response && assigned(response.body) && response.headers["Content-Type"]) {
+                dispatchHandler("read", response, context);
+            }
+        },
+
+        /** Write the body of the specified request by delegating to JSON handlers.
+        * @param request - Reques tobject.
+        * @param context - Operation context.
+        */
+        write: function (request, context) {
+
+            dispatchHandler("write", request, context);
+        },
+
+        maxDataServiceVersion: MAX_DATA_SERVICE_VERSION,
+        accept: "application/json;q=0.9, */*;q=0.1"
+    };
+
+exports.defaultMetadata = []; //TODO check why is the defaultMetadata an Array? and not an Object.
+
+/** Reads data from the specified URL.
+ * @param urlOrRequest - URL to read data from.
+ * @param {Function} [success] - 
+ * @param {Function} [error] - 
+ * @param {Object} [handler] - 
+ * @param {Object} [httpClient] - 
+ * @param {Object} [metadata] - 
+ */
+exports.read = function (urlOrRequest, success, error, handler, httpClient, metadata) {
+
+    var request;
+    if (urlOrRequest instanceof String || typeof urlOrRequest === "string") {
+        request = { requestUri: urlOrRequest };
+    } else {
+        request = urlOrRequest;
+    }
+
+    return exports.request(request, success, error, handler, httpClient, metadata);
+};
+
+/** Sends a request containing OData payload to a server.
+ * @param {Object} request - Object that represents the request to be sent.
+ * @param {Function} [success] - 
+ * @param {Function} [error] - 
+ * @param {Object} [handler] - 
+ * @param {Object} [httpClient] - 
+ * @param {Object} [metadata] - 
+ */
+exports.request = function (request, success, error, handler, httpClient, metadata) {
+
+    success = success || exports.defaultSuccess;
+    error = error || exports.defaultError;
+    handler = handler || exports.defaultHandler;
+    httpClient = httpClient || odataNet.defaultHttpClient;
+    metadata = metadata || exports.defaultMetadata;
+
+    // Augment the request with additional defaults.
+    request.recognizeDates = utils.defined(request.recognizeDates, odataJson.jsonHandler.recognizeDates);
+    request.callbackParameterName = utils.defined(request.callbackParameterName, odataNet.defaultHttpClient.callbackParameterName);
+    request.formatQueryString = utils.defined(request.formatQueryString, odataNet.defaultHttpClient.formatQueryString);
+    request.enableJsonpCallback = utils.defined(request.enableJsonpCallback, odataNet.defaultHttpClient.enableJsonpCallback);
+
+    // Create the base context for read/write operations, also specifying complete settings.
+    var context = {
+        metadata: metadata,
+        recognizeDates: request.recognizeDates,
+        callbackParameterName: request.callbackParameterName,
+        formatQueryString: request.formatQueryString,
+        enableJsonpCallback: request.enableJsonpCallback
+    };
+
+    try {
+        odataUtils.prepareRequest(request, handler, context);
+        return odataUtils.invokeRequest(request, success, error, handler, httpClient, context);
+    } catch (err) {
+        // errors in success handler for sync requests are catched here and result in error handler calls. 
+        // So here we fix this and throw that error further.
+        if (err.bIsSuccessHandlerError) {
+            throw err;
+        } else {
+            error(err);
+        }
+    }
+
+};
+
+/** Parses the csdl metadata to DataJS metatdata format. This method can be used when the metadata is retrieved using something other than DataJS
+ * @param {string} csdlMetadata - A string that represents the entire csdl metadata.
+ * @returns {Object} An object that has the representation of the metadata in Datajs format.
+ */
+exports.parseMetadata = function (csdlMetadataDocument) {
+
+    return metadataParser(null, csdlMetadataDocument);
+};
+
+// Configure the batch handler to use the default handler for the batch parts.
+exports.batch.batchHandler.partHandler = exports.defaultHandler;
+exports.metadataHandler =  odataMetadata.metadataHandler;
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/olingo-odata4-js/blob/d5ec5557/odatajs/src/lib/odata/batch.js
----------------------------------------------------------------------
diff --git a/odatajs/src/lib/odata/batch.js b/odatajs/src/lib/odata/batch.js
new file mode 100644
index 0000000..5b006ff
--- /dev/null
+++ b/odatajs/src/lib/odata/batch.js
@@ -0,0 +1,377 @@
+/*
+ * 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.
+ */
+
+/** @module odata/batch */
+
+var utils    = require('./../datajs.js').utils;
+var odataUtils    = require('./utils.js');
+var odataHandler = require('./handler.js');
+
+var extend = utils.extend;
+var isArray = utils.isArray;
+var trimString = utils.trimString;
+
+var contentType = odataHandler.contentType;
+var handler = odataHandler.handler;
+var isBatch = odataUtils.isBatch;
+var MAX_DATA_SERVICE_VERSION = odataHandler.MAX_DATA_SERVICE_VERSION;
+var normalizeHeaders = odataUtils.normalizeHeaders;
+//TODO var payloadTypeOf = odata.payloadTypeOf;
+var prepareRequest = odataUtils.prepareRequest;
+
+
+
+
+
+// Imports
+
+
+
+// CONTENT START
+var batchMediaType = "multipart/mixed";
+var responseStatusRegex = /^HTTP\/1\.\d (\d{3}) (.*)$/i;
+var responseHeaderRegex = /^([^()<>@,;:\\"\/[\]?={} \t]+)\s?:\s?(.*)/;
+
+/* Calculates a random 16 bit number and returns it in hexadecimal format.
+ * @returns {String} A 16-bit number in hex format.
+ */
+function hex16() {
+
+    return Math.floor((1 + Math.random()) * 0x10000).toString(16).substr(1);
+}
+
+/* Creates a string that can be used as a multipart request boundary.
+ * @param {String} [prefix] - 
+ * @returns {String} Boundary string of the format: <prefix><hex16>-<hex16>-<hex16>
+ */
+function createBoundary(prefix) {
+
+    return prefix + hex16() + "-" + hex16() + "-" + hex16();
+}
+
+/* Gets the handler for data serialization of individual requests / responses in a batch.
+ * @param context - Context used for data serialization.
+ * @returns Handler object
+ */
+function partHandler(context) {
+
+    return context.handler.partHandler;
+}
+
+/* Gets the current boundary used for parsing the body of a multipart response.
+ * @param context - Context used for parsing a multipart response.
+ * @returns {String} Boundary string.
+ */
+function currentBoundary(context) {
+    var boundaries = context.boundaries;
+    return boundaries[boundaries.length - 1];
+}
+
+/** Parses a batch response.
+ * @param handler - This handler.
+ * @param {String} text - Batch text.
+ * @param {Object} context - Object with parsing context.
+ * @return An object representation of the batch.
+ */
+function batchParser(handler, text, context) {
+
+    var boundary = context.contentType.properties["boundary"];
+    return { __batchResponses: readBatch(text, { boundaries: [boundary], handlerContext: context }) };
+}
+
+/** Serializes a batch object representation into text.
+ * @param handler - This handler.
+ * @param {Object} data - Representation of a batch.
+ * @param {Object} context - Object with parsing context.
+ * @return An text representation of the batch object; undefined if not applicable.#
+ */
+function batchSerializer(handler, data, context) {
+
+    var cType = context.contentType = context.contentType || contentType(batchMediaType);
+    if (cType.mediaType === batchMediaType) {
+        return writeBatch(data, context);
+    }
+}
+
+/* Parses a multipart/mixed response body from from the position defined by the context.
+ * @param {String}  text - Body of the multipart/mixed response.
+ * @param context - Context used for parsing.
+ * @return Array of objects representing the individual responses.
+ */
+function readBatch(text, context) {
+    var delimiter = "--" + currentBoundary(context);
+
+    // Move beyond the delimiter and read the complete batch
+    readTo(text, context, delimiter);
+
+    // Ignore the incoming line
+    readLine(text, context);
+
+    // Read the batch parts
+    var responses = [];
+    var partEnd;
+
+    while (partEnd !== "--" && context.position < text.length) {
+        var partHeaders = readHeaders(text, context);
+        var partContentType = contentType(partHeaders["Content-Type"]);
+
+        var changeResponses;
+        if (partContentType && partContentType.mediaType === batchMediaType) {
+            context.boundaries.push(partContentType.properties.boundary);
+            try {
+                changeResponses = readBatch(text, context);
+            } catch (e) {
+                e.response = readResponse(text, context, delimiter);
+                changeResponses = [e];
+            }
+            responses.push({ __changeResponses: changeResponses });
+            context.boundaries.pop();
+            readTo(text, context, "--" + currentBoundary(context));
+        } else {
+            if (!partContentType || partContentType.mediaType !== "application/http") {
+                throw { message: "invalid MIME part type " };
+            }
+            // Skip empty line
+            readLine(text, context);
+            // Read the response
+            var response = readResponse(text, context, delimiter);
+            try {
+                if (response.statusCode >= 200 && response.statusCode <= 299) {
+                    partHandler(context.handlerContext).read(response, context.handlerContext);
+                } else {
+                    // Keep track of failed responses and continue processing the batch.
+                    response = { message: "HTTP request failed", response: response };
+                }
+            } catch (e) {
+                response = e;
+            }
+
+            responses.push(response);
+        }
+
+        partEnd = text.substr(context.position, 2);
+
+        // Ignore the incoming line.
+        readLine(text, context);
+    }
+    return responses;
+}
+
+/* Parses the http headers in the text from the position defined by the context.
+* @param {String} text - Text containing an http response's headers</param>
+* @param context - Context used for parsing.
+* @returns Object containing the headers as key value pairs.
+* This function doesn't support split headers and it will stop reading when it hits two consecutive line breaks.
+*/
+function readHeaders(text, context) {
+    var headers = {};
+    var parts;
+    var line;
+    var pos;
+
+    do {
+        pos = context.position;
+        line = readLine(text, context);
+        parts = responseHeaderRegex.exec(line);
+        if (parts !== null) {
+            headers[parts[1]] = parts[2];
+        } else {
+            // Whatever was found is not a header, so reset the context position.
+            context.position = pos;
+        }
+    } while (line && parts);
+
+    normalizeHeaders(headers);
+
+    return headers;
+}
+
+/* Parses an HTTP response.
+ * @param {String} text -Text representing the http response.
+ * @param context optional - Context used for parsing.
+ * @param {String} delimiter -String used as delimiter of the multipart response parts.
+ * @return Object representing the http response.
+ */
+function readResponse(text, context, delimiter) {
+    // Read the status line.
+    var pos = context.position;
+    var match = responseStatusRegex.exec(readLine(text, context));
+
+    var statusCode;
+    var statusText;
+    var headers;
+
+    if (match) {
+        statusCode = match[1];
+        statusText = match[2];
+        headers = readHeaders(text, context);
+        readLine(text, context);
+    } else {
+        context.position = pos;
+    }
+
+    return {
+        statusCode: statusCode,
+        statusText: statusText,
+        headers: headers,
+        body: readTo(text, context, "\r\n" + delimiter)
+    };
+}
+
+/** Returns a substring from the position defined by the context up to the next line break (CRLF).
+ * @param {String} text - Input string.
+ * @param context - Context used for reading the input string.
+ * @returns {String} Substring to the first ocurrence of a line break or null if none can be found. 
+ */
+function readLine(text, context) {
+
+    return readTo(text, context, "\r\n");
+}
+
+/** Returns a substring from the position given by the context up to value defined by the str parameter and increments the position in the context.
+ * @param {String} text - Input string.</param>
+ * @param context - Context used for reading the input string.</param>
+ * @param {String} [str] - Substring to read up to.
+ * @returns {String} Substring to the first ocurrence of str or the end of the input string if str is not specified. Null if the marker is not found.
+ */
+function readTo(text, context, str) {
+    var start = context.position || 0;
+    var end = text.length;
+    if (str) {
+        end = text.indexOf(str, start);
+        if (end === -1) {
+            return null;
+        }
+        context.position = end + str.length;
+    } else {
+        context.position = end;
+    }
+
+    return text.substring(start, end);
+}
+
+/** Serializes a batch request object to a string.
+ * @param data - Batch request object in payload representation format
+ * @param context - Context used for the serialization
+ * @returns {String} String representing the batch request
+ */
+function writeBatch(data, context) {
+    if (!isBatch(data)) {
+        throw { message: "Data is not a batch object." };
+    }
+
+    var batchBoundary = createBoundary("batch_");
+    var batchParts = data.__batchRequests;
+    var batch = "";
+    var i, len;
+    for (i = 0, len = batchParts.length; i < len; i++) {
+        batch += writeBatchPartDelimiter(batchBoundary, false) +
+                 writeBatchPart(batchParts[i], context);
+    }
+    batch += writeBatchPartDelimiter(batchBoundary, true);
+
+    // Register the boundary with the request content type.
+    var contentTypeProperties = context.contentType.properties;
+    contentTypeProperties.boundary = batchBoundary;
+
+    return batch;
+}
+
+/** Creates the delimiter that indicates that start or end of an individual request.
+ * @param {String} boundary Boundary string used to indicate the start of the request</param>
+ * @param {Boolean} close - Flag indicating that a close delimiter string should be generated
+ * @returns {String} Delimiter string
+ */
+function writeBatchPartDelimiter(boundary, close) {
+    var result = "\r\n--" + boundary;
+    if (close) {
+        result += "--";
+    }
+
+    return result + "\r\n";
+}
+
+/** Serializes a part of a batch request to a string. A part can be either a GET request or
+ * a change set grouping several CUD (create, update, delete) requests.
+ * @param part - Request or change set object in payload representation format</param>
+ * @param context - Object containing context information used for the serialization</param>
+ * @param {boolean} [nested] - 
+ * @returns {String} String representing the serialized part
+ * A change set is an array of request objects and they cannot be nested inside other change sets.
+ */
+function writeBatchPart(part, context, nested) {
+    
+
+    var changeSet = part.__changeRequests;
+    var result;
+    if (isArray(changeSet)) {
+        if (nested) {
+            throw { message: "Not Supported: change set nested in other change set" };
+        }
+
+        var changeSetBoundary = createBoundary("changeset_");
+        result = "Content-Type: " + batchMediaType + "; boundary=" + changeSetBoundary + "\r\n";
+        var i, len;
+        for (i = 0, len = changeSet.length; i < len; i++) {
+            result += writeBatchPartDelimiter(changeSetBoundary, false) +
+                 writeBatchPart(changeSet[i], context, true);
+        }
+
+        result += writeBatchPartDelimiter(changeSetBoundary, true);
+    } else {
+        result = "Content-Type: application/http\r\nContent-Transfer-Encoding: binary\r\n\r\n";
+        var partContext = extend({}, context);
+        partContext.handler = handler;
+        partContext.request = part;
+        partContext.contentType = null;
+
+        prepareRequest(part, partHandler(context), partContext);
+        result += writeRequest(part);
+    }
+
+    return result;
+}
+
+/* Serializes a request object to a string.
+ * @param request - Request object to serialize</param>
+ * @returns {String} String representing the serialized request
+ */
+function writeRequest(request) {
+    var result = (request.method ? request.method : "GET") + " " + request.requestUri + " HTTP/1.1\r\n";
+    for (var name in request.headers) {
+        if (request.headers[name]) {
+            result = result + name + ": " + request.headers[name] + "\r\n";
+        }
+    }
+
+    result += "\r\n";
+
+    if (request.body) {
+        result += request.body;
+    }
+
+    return result;
+}
+
+
+
+/** batchHandler (see {@link module:odata/batch~batchParser}) */
+exports.batchHandler = handler(batchParser, batchSerializer, batchMediaType, MAX_DATA_SERVICE_VERSION);
+exports.batchSerializer = batchSerializer;
+exports.writeRequest = writeRequest;
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/olingo-odata4-js/blob/d5ec5557/odatajs/src/lib/odata/handler.js
----------------------------------------------------------------------
diff --git a/odatajs/src/lib/odata/handler.js b/odatajs/src/lib/odata/handler.js
new file mode 100644
index 0000000..3e85a1e
--- /dev/null
+++ b/odatajs/src/lib/odata/handler.js
@@ -0,0 +1,284 @@
+/*
+ * 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.
+ */
+
+/** @module odata/handler */
+
+
+var utils    = require('./../datajs.js').utils;
+var oDataUtils    = require('./utils.js');
+
+// Imports.
+var assigned = utils.assigned;
+var extend = utils.extend;
+var trimString = utils.trimString;
+var maxVersion = oDataUtils.maxVersion;
+var MAX_DATA_SERVICE_VERSION = "4.0";
+
+/** Parses a string into an object with media type and properties.
+ * @param {String} str - String with media type to parse.
+ * @return null if the string is empty; an object with 'mediaType' and a 'properties' dictionary otherwise.
+ */
+function contentType(str) {
+
+    if (!str) {
+        return null;
+    }
+
+    var contentTypeParts = str.split(";");
+    var properties = {};
+
+    var i, len;
+    for (i = 1, len = contentTypeParts.length; i < len; i++) {
+        var contentTypeParams = contentTypeParts[i].split("=");
+        properties[trimString(contentTypeParams[0])] = contentTypeParams[1];
+    }
+
+    return { mediaType: trimString(contentTypeParts[0]), properties: properties };
+}
+
+/** Serializes an object with media type and properties dictionary into a string.
+ * @param contentType - Object with media type and properties dictionary to serialize.
+ * @return String representation of the media type object; undefined if contentType is null or undefined.</returns>
+ */
+function contentTypeToString(contentType) {
+    if (!contentType) {
+        return undefined;
+    }
+
+    var result = contentType.mediaType;
+    var property;
+    for (property in contentType.properties) {
+        result += ";" + property + "=" + contentType.properties[property];
+    }
+    return result;
+}
+
+/** Creates an object that is going to be used as the context for the handler's parser and serializer.
+ * @param contentType - Object with media type and properties dictionary.
+ * @param {String} dataServiceVersion - String indicating the version of the protocol to use.
+ * @param context - Operation context.
+ * @param handler - Handler object that is processing a resquest or response.
+ * @return Context object.</returns>
+ */
+function createReadWriteContext(contentType, dataServiceVersion, context, handler) {
+
+    var rwContext = {};
+    extend(rwContext, context);
+    extend(rwContext, {
+        contentType: contentType,
+        dataServiceVersion: dataServiceVersion,
+        handler: handler
+    });
+
+    return rwContext;
+}
+
+/** Sets a request header's value. If the header has already a value other than undefined, null or empty string, then this method does nothing.
+ * @param request - Request object on which the header will be set.
+ * @param {String} name - Header name.
+ * @param {String} value - Header value.
+ */
+function fixRequestHeader(request, name, value) {
+    if (!request) {
+        return;
+    }
+
+    var headers = request.headers;
+    if (!headers[name]) {
+        headers[name] = value;
+    }
+}
+
+/** Sets the DataServiceVersion header of the request if its value is not yet defined or of a lower version.
+ * @param request - Request object on which the header will be set.
+ * @param {String} version - Version value.
+ *  If the request has already a version value higher than the one supplied the this function does nothing.
+ */
+function fixDataServiceVersionHeader(request, version) {   
+
+    if (request) {
+        var headers = request.headers;
+        var dsv = headers["OData-Version"];
+        headers["OData-Version"] = dsv ? maxVersion(dsv, version) : version;
+    }
+}
+
+/** Gets the value of a request or response header.
+ * @param requestOrResponse - Object representing a request or a response.
+ * @param {String} name - Name of the header to retrieve.
+ * @returns {String} String value of the header; undefined if the header cannot be found.
+ */
+function getRequestOrResponseHeader(requestOrResponse, name) {
+
+    var headers = requestOrResponse.headers;
+    return (headers && headers[name]) || undefined;
+}
+
+/** Gets the value of the Content-Type header from a request or response.
+ * @param requestOrResponse - Object representing a request or a response.
+ * @returns {Object} Object with 'mediaType' and a 'properties' dictionary; null in case that the header is not found or doesn't have a value.
+ */
+function getContentType(requestOrResponse) {
+
+    return contentType(getRequestOrResponseHeader(requestOrResponse, "Content-Type"));
+}
+
+var versionRE = /^\s?(\d+\.\d+);?.*$/;
+/** Gets the value of the DataServiceVersion header from a request or response.
+ * @param requestOrResponse - Object representing a request or a response.
+ * @returns {String} Data service version; undefined if the header cannot be found.
+ */
+function getDataServiceVersion(requestOrResponse) {
+
+    var value = getRequestOrResponseHeader(requestOrResponse, "OData-Version");
+    if (value) {
+        var matches = versionRE.exec(value);
+        if (matches && matches.length) {
+            return matches[1];
+        }
+    }
+
+    // Fall through and return undefined.
+}
+
+/** Checks that a handler can process a particular mime type.
+ * @param handler - Handler object that is processing a resquest or response.
+ * @param cType - Object with 'mediaType' and a 'properties' dictionary.
+ * @returns {Boolean} True if the handler can process the mime type; false otherwise.
+ *
+ * The following check isn't as strict because if cType.mediaType = application/; it will match an accept value of "application/xml";
+ * however in practice we don't not expect to see such "suffixed" mimeTypes for the handlers.
+ */
+function handlerAccepts(handler, cType) {
+    return handler.accept.indexOf(cType.mediaType) >= 0;
+}
+
+/** Invokes the parser associated with a handler for reading the payload of a HTTP response.
+ * @param handler - Handler object that is processing the response.
+ * @param {Function} parseCallback - Parser function that will process the response payload.
+ * @param response - HTTP response whose payload is going to be processed.
+ * @param context - Object used as the context for processing the response.
+ * @returns {Boolean} True if the handler processed the response payload and the response.data property was set; false otherwise.
+ */
+function handlerRead(handler, parseCallback, response, context) {
+
+    if (!response || !response.headers) {
+        return false;
+    }
+
+    var cType = getContentType(response);
+    var version = getDataServiceVersion(response) || "";
+    var body = response.body;
+
+    if (!assigned(body)) {
+        return false;
+    }
+
+    if (handlerAccepts(handler, cType)) {
+        var readContext = createReadWriteContext(cType, version, context, handler);
+        readContext.response = response;
+        response.data = parseCallback(handler, body, readContext);
+        return response.data !== undefined;
+    }
+
+    return false;
+}
+
+/** Invokes the serializer associated with a handler for generating the payload of a HTTP request.
+ * @param handler - Handler object that is processing the request.
+ * @param {Function} serializeCallback - Serializer function that will generate the request payload.
+ * @param response - HTTP request whose payload is going to be generated.
+ * @param context - Object used as the context for serializing the request.
+ * @returns {Boolean} True if the handler serialized the request payload and the request.body property was set; false otherwise.
+ */
+function handlerWrite(handler, serializeCallback, request, context) {
+    if (!request || !request.headers) {
+        return false;
+    }
+
+    var cType = getContentType(request);
+    var version = getDataServiceVersion(request);
+
+    if (!cType || handlerAccepts(handler, cType)) {
+        var writeContext = createReadWriteContext(cType, version, context, handler);
+        writeContext.request = request;
+
+        request.body = serializeCallback(handler, request.data, writeContext);
+
+        if (request.body !== undefined) {
+            fixDataServiceVersionHeader(request, writeContext.dataServiceVersion || "4.0");
+
+            fixRequestHeader(request, "Content-Type", contentTypeToString(writeContext.contentType));
+            fixRequestHeader(request, "OData-MaxVersion", handler.maxDataServiceVersion);
+            return true;
+        }
+    }
+
+    return false;
+}
+
+/** Creates a handler object for processing HTTP requests and responses.
+ * @param {Function} parseCallback - Parser function that will process the response payload.
+ * @param {Function} serializeCallback - Serializer function that will generate the request payload.
+ * @param {String} accept - String containing a comma separated list of the mime types that this handler can work with.
+ * @param {String} maxDataServiceVersion - String indicating the highest version of the protocol that this handler can work with.
+ * @returns {Object} Handler object.
+ */
+function handler(parseCallback, serializeCallback, accept, maxDataServiceVersion) {
+
+    return {
+        accept: accept,
+        maxDataServiceVersion: maxDataServiceVersion,
+
+        read: function (response, context) {
+            return handlerRead(this, parseCallback, response, context);
+        },
+
+        write: function (request, context) {
+            return handlerWrite(this, serializeCallback, request, context);
+        }
+    };
+}
+
+function textParse(handler, body /*, context */) {
+    return body;
+}
+
+function textSerialize(handler, data /*, context */) {
+    if (assigned(data)) {
+        return data.toString();
+    } else {
+        return undefined;
+    }
+}
+
+
+
+
+exports.textHandler = handler(textParse, textSerialize, "text/plain", MAX_DATA_SERVICE_VERSION);
+
+exports.contentType = contentType;
+exports.contentTypeToString = contentTypeToString;
+exports.handler = handler;
+exports.createReadWriteContext = createReadWriteContext;
+exports.fixRequestHeader = fixRequestHeader;
+exports.getRequestOrResponseHeader = getRequestOrResponseHeader;
+exports.getContentType = getContentType;
+exports.getDataServiceVersion = getDataServiceVersion;
+exports.MAX_DATA_SERVICE_VERSION = MAX_DATA_SERVICE_VERSION;
\ No newline at end of file