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feel free to add you examples.

 refer to
[Using locale XSD files|https://cwiki.apache.org/confluence/display/OFBIZ/FAQ+-+Tips+-+Tricks+-+Cookbook+-+HowTo#FAQ-Tips-Tricks-Cookbook-HowTo-UsinglocaleXSDfilesinsteadofOFBizremote%28at]
{tip} 
the Scripting using Java is accomplished using Beanshell (bsh) or Groovy (script)
both can use standard java, but each can use the unique scripting for that script.

{info:title=Warning}
{color:red} 
Note: work in progress feel free to add you examples.
{color} 
{code:xml}
{info}
    <simple-method method-name="transmitRequest" short-description="">
        <!-- Connect, there may be ofbiz HttpClient.java that may handle this well -->
        <call-simple-method method-name="connectWithRedirectHack"/>
        <log level="info" message="step 1 done"/>
        <!-- Get the Content -->
        <call-simple-method method-name="createXMLOutput"/>
        <log level="info" message="step 2 done"/>
        <!-- Setup the Content -->
        <call-simple-method method-name="setupContent"/>
        <log level="info" message="step 3 done ${content}"/>
        <!-- Get Response -->
        <call-simple-method method-name="getResponse"/>
        <log level="info" message="step 4 done"/>
        <!-- Get Redirect from xml document response -->
        <log level="info" message="${response}"/>
        <call-simple-method method-name="getReDirectFromXmlDoc"/>
        <log level="info" message="step 5 done"/>
        <field-to-result field-name="redirect"/>
    </simple-method>
<!-- Step 1 -->
    <simple-method method-name="connectWithRedirectHack" short-description="">
        <call-simple-method method-name="createRequestUrl"/>
        <call-simple-method method-name="getHttpAuth"/>
        <call-bsh><![CDATA[
            HttpURLConnection conn = (HttpURLConnection)url.openConnection();
            conn.setDoInput (true);
            conn.setDoOutput (true);
            conn.setUseCaches (false);
            conn.setFollowRedirects(true);
            conn.setInstanceFollowRedirects(false);
            conn.setRequestMethod("POST");
            conn.setRequestProperty("Authorization", HttpAuth);
            conn.setRequestProperty("Host", conn.getURL().getHost());
            conn.setRequestProperty("content-type", "application/xml");
            conn.setRequestProperty("accept", "application/xml");
            conn.connect();
        return org.ofbiz.base.util.UtilMisc.toMap("conn", conn);
        ]]></call-bsh>
    </simple-method>
    <simple-method method-name="createRequestUrl" short-description="">
        <!-- Setup Url spec -->
        <property-to-field resource="googleCheckout" property="basePostUrl" field-name="basePostUrl"/>
        <property-to-field resource="googleCheckout" property="merchantId" field-name="merchantId"/>
        <property-to-field resource="googleCheckout" property="request" field-name="request"/>
        <set field="urlSpec" value="${basePostUrl}${merchantId}${request}"/>
        <create-object class-name="java.net.URL" field-name="url">
            <field field-name="urlSpec"/>
        </create-object>
    </simple-method>
    <simple-method method-name="getHttpAuth" short-description="">
        <property-to-field resource="googleCheckout" property="merchantId" field-name="merchantId"/>
        <property-to-field resource="googleCheckout" property="merchantKey" field-name="merchantKey"/>
        <set field="userNameAndPass" value="${merchantId}:${merchantKey}"/>
        <call-class-method method-name="base64Encode" class-name="org.ofbiz.base.util.Base64" ret-field-name="encodedValue">
            <field field-name="userNameAndPass"/>
        </call-class-method>
        <set field="HttpAuth" value="Basic ${encodedValue}"/>
    </simple-method>
<!-- Step 2 -->
    <simple-method method-name="createXMLOutput" short-description="">
        <!-- create writer -->
        <create-object class-name="java.io.StringWriter" field-name="XMLWriter"/>
        <!-- create screen context -->
        <call-class-method method-name="create" class-name="org.ofbiz.base.util.collections.MapStack" ret-field-name="xscreenContext"/>
        <!-- Add the shoppingCart to the MapStack -->
        <set field="inMap.shoppingCart" from-field="parameters.shoppingCart"/>
        <set-service-fields map-name="inMap" service-name="ConvertOfbizCartToGoogle" to-map-name="serMap"/>
        <call-service service-name="ConvertOfbizCartToGoogle" in-map-name="serMap">
            <result-to-field result-name="googleCart"/>
            <result-to-field result-name="flowSupport"/>
            <result-to-field result-name="sendInitialAuthDetails"/>
        </call-service>
        <set field="xscreenContext.googleCart" from-field="googleCart"/>
        <set field="xscreenContext.flowSupport" from-field="flowSupport"/>
        <set field="xscreenContext.sendInitialAuthDetails" from-field="sendInitialAuthDetails"/>
        <set field="xscreenContext.shoppingCart" from-field="parameters.shoppingCart"/>
        <!-- create string renderer -->
        <create-object class-name="org.ofbiz.widget.html.HtmlScreenRenderer" field-name="xhtmlStringRenderer"></create-object>
        <!-- create screen renderer -->
        <create-object class-name="org.ofbiz.widget.screen.ScreenRenderer" field-name="screens">
            <field field-name="XMLWriter" type="java.io.Writer"/>
            <field field-name="xscreenContext" type="org.ofbiz.base.util.collections.MapStack"/>
            <field field-name="xhtmlStringRenderer" type="org.ofbiz.widget.screen.ScreenStringRenderer"/>
        </create-object>
        <set field="xscreenContext.screens" from-field="screens"/>
        <create-object class-name="org.ofbiz.widget.screen.ScreenRenderer" field-name="xscreens">
            <field field-name="XMLWriter" type="java.io.Writer"/>
            <field field-name="xscreenContext" type="org.ofbiz.base.util.collections.MapStack"/>
            <field field-name="xhtmlStringRenderer" type="org.ofbiz.widget.screen.ScreenStringRenderer"/>
        </create-object>
        <!-- get uri -->
        <property-to-field resource="googleCheckout" property="xmlTemplateUri" field-name="screenUri"/>
        <call-object-method method-name="render" obj-field-name="xscreens">
            <field field-name="screenUri" type="String"/>
        </call-object-method>
        <set field="content" value="${bsh:XMLWriter.toString()}"/>
    </simple-method>
<!-- Step 3 -->
    <simple-method method-name="setupContent" short-description="">
        <call-bsh><![CDATA[
        sWriter = new OutputStreamWriter(conn.getOutputStream());
        return org.ofbiz.base.util.UtilMisc.toMap("sWriter", sWriter);
        ]]></call-bsh>
        <create-object class-name="java.io.BufferedWriter" field-name="writer">
            <field field-name="sWriter" type="java.io.Writer"/>
        </create-object>
        <call-object-method method-name="write" obj-field-name="writer">
            <field field-name="content" type="String"/>
        </call-object-method>
        <call-object-method method-name="close" obj-field-name="writer"/>
    </simple-method>
<!-- Step 4 -->
    <simple-method method-name="getResponse" short-description="">
        <clear-field field-name="sReader"/>
        <call-bsh><![CDATA[
        try {
          sReader = new InputStreamReader(conn.getInputStream());
        } catch (IOException ex) {
          sReader = new InputStreamReader(conn.getErrorStream());
        }
        return org.ofbiz.base.util.UtilMisc.toMap("sReader", sReader);
        ]]></call-bsh>

        <create-object class-name="java.io.BufferedReader" field-name="reader">
            <field field-name="sReader" type="java.io.Reader"/>
        </create-object>
        <call-bsh><![CDATA[
        StringBuffer buffer = new StringBuffer();
        String line = null;
        while (null != (line = reader.readLine())) {
            buffer.append(line);
        }
        return org.ofbiz.base.util.UtilMisc.toMap("buffer", buffer);
        ]]></call-bsh>
        <set field="response" value="${bsh:buffer.toString()}"/>
    </simple-method>
<!-- Step 5 -->
    <simple-method method-name="getReDirectFromXmlDoc" short-description="">
        <call-bsh><![CDATA[
            document = org.ofbiz.base.util.UtilXml.readXmlDocument(response, false);
        return org.ofbiz.base.util.UtilMisc.toMap("document", document);
        ]]></call-bsh>
        <call-object-method method-name="getDocumentElement" obj-field-name="document" ret-field-name="rootElement"/>
        <!-- May want to get the serial number to store eventually; would be an attribute of this rootElement,
                Skipping for now -->
        <call-simple-method method-name="getRedirectFromRootElement"/>
    </simple-method>
    <simple-method method-name="getRedirectFromRootElement" short-description="">
        <call-class-method method-name="childElementList" class-name="org.ofbiz.base.util.UtilXml" ret-field-name="childList">
            <field field-name="rootElement" type="org.w3c.dom.Element"/>
        </call-class-method>
        <call-bsh><![CDATA[
        redirect = null;
        childListIter = childList.iterator();
        while (childListIter.hasNext()){
            child = childListIter.next();
            org.ofbiz.base.util.Debug.logInfo("child =" + child,null);
            nodeName = child.getNodeName();
            if ("redirect-url".equals(nodeName)){
                redirect = org.ofbiz.base.util.UtilXml.elementValue(child);
            } else {
                redirect = document;
            }

        }
        return org.ofbiz.base.util.UtilMisc.toMap("redirect", redirect.toString());
        ]]></call-bsh>
    </simple-method>

{code} 
{code:xml}

    <simple-method method-name="setupHeaders" short-description="">
        <set field="true" value="true" type="Boolean"/>
        <set field="false" value="false" type="Boolean"/>

        <call-object-method method-name="setDoInput" obj-field-name="conn">
            <field field-name="true" type="boolean"/>
        </call-object-method>

        <call-object-method method-name="setDoOutput" obj-field-name="conn">
            <field field-name="true" type="boolean"/>
        </call-object-method>

        <call-object-method method-name="setUseCaches" obj-field-name="conn">
            <field field-name="false" type="boolean"/>
        </call-object-method>

        <call-object-method method-name="setFollowRedirects" obj-field-name="conn">
            <field field-name="true" type="boolean"/>
        </call-object-method>

        <call-object-method method-name="setInstanceFollowRedirects" obj-field-name="conn">
            <field field-name="true" type="boolean"/>
        </call-object-method>

        <call-object-method method-name="setRequestMethod" obj-field-name="conn">
            <string value="POST"/>
        </call-object-method>

        <call-simple-method method-name="getHttpAuth"/>
        <call-object-method method-name="setRequestProperty" obj-field-name="conn">
            <string value="Authorization"/>
            <field field-name="HttpAuth"/>
        </call-object-method>

        <call-simple-method method-name="getHttpHost"/>
        <call-object-method method-name="setRequestProperty" obj-field-name="conn">
            <string value="Host"/>
            <field field-name="HttpHost"/>
        </call-object-method>

        <call-object-method method-name="setRequestProperty" obj-field-name="conn">
            <string value="content-type"/>
            <string value="application/xml"/>
        </call-object-method>

        <call-object-method method-name="setRequestProperty" obj-field-name="conn">
            <string value="accept"/>
            <string value="application/xml"/>
        </call-object-method>

    </simple-method>
    <simple-method method-name="getHttpHost" short-description="">
        <call-bsh><![CDATA[
        HttpHost = conn.getURL().getHost();
        return org.ofbiz.base.util.UtilMisc.toMap("HttpHost", HttpHost);
        ]]></call-bsh>
    </simple-method>


{code}