$.DirectCallController.java Source code

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Here is the source code for $.DirectCallController.java

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    #set($symbol_pound='#')#set($symbol_dollar='$')#set($symbol_escape='\')
    /*
     * Copyright (C) 2015
     * This program is free software: you can redistribute it and/or modify
     * it under the terms of the GNU General Public License as published by
     * the Free Software Foundation, either version 3 of the License, or
     * (at your option) any later version.
     *
     * This program is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     * GNU General Public License for more details.
     *
     * You should have received a copy of the GNU General Public License
     * along with this program.  If not, see <http://www.gnu.org/licenses/>.
     */

package ${package}.web.msg;

    import java.io.PrintWriter;
    import java.io.StringWriter;
    import java.util.UUID;

    import javax.annotation.Nullable;

    import org.cleverbus.common.log.Log;
    import org.cleverbus.core.common.directcall.DirectCall;
    import org.cleverbus.core.common.directcall.DirectCallParams;
    import org.cleverbus.core.common.directcall.DirectCallRegistry;

    import org.apache.commons.lang.StringUtils;
    import org.apache.commons.lang3.exception.ExceptionUtils;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.ModelMap;
    import org.springframework.util.Assert;
    import org.springframework.web.bind.annotation.ModelAttribute;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestMethod;
    import org.springframework.web.bind.annotation.RequestParam;

    /**
     * Controller for direct call form.
     *
     * @author <a href="mailto:petr.juza@cleverlance.com">Petr Juza</a>
     */
    @Controller
    public class DirectCallController {

        private static final String VIEW_NAME = "externalCall";
        private static final String CALL_RESULT_ATTR = "callResult";
        private static final String CALL_RESULT_ERR_ATTR = "callResultError";

        @Autowired
        private DirectCallRegistry callRegistry;

        @Autowired
        private DirectCall directCall;

        @RequestMapping(value = "/directCall", method = RequestMethod.GET)
        public String showForm(@ModelAttribute("model") ModelMap modelMap) {
            return VIEW_NAME;
        }

        @RequestMapping(value = "/directCall", method = RequestMethod.POST)
        public String processCallForm(@ModelAttribute("model") ModelMap modelMap, @RequestParam("body") String body,
                @RequestParam("uri") String uri, @RequestParam("senderRef") String senderRef,
                @RequestParam("soapAction") @Nullable String soapAction, @RequestParam("header") String header) {

            Assert.hasText(body, "the body must not be empty");
            Assert.hasText(uri, "the uri must not be empty");
            Assert.hasText(senderRef, "the senderRef must not be empty");

            // generate unique ID
            String callId = UUID.randomUUID().toString();

            // save params into registry
            DirectCallParams params = new DirectCallParams(body, uri, senderRef, soapAction,
                    StringUtils.trimToNull(header));
            callRegistry.addParams(callId, params);

            // call external system via internal servlet route
            try {
                Log.debug("Calling external system with callId=" + callId + ", params: " + params);

                String res = directCall.makeCall(callId);

                modelMap.put(CALL_RESULT_ATTR, MessageController.prettyPrintXML(res));
            } catch (Exception ex) {
                // error occurred
                StringWriter strOut = new StringWriter();
                PrintWriter resStr = new PrintWriter(strOut);
                ExceptionUtils.printRootCauseStackTrace(ex, resStr);

                modelMap.put(CALL_RESULT_ERR_ATTR, strOut.toString());
            }

            modelMap.put("header", header);
            modelMap.put("body", body);
            modelMap.put("uri", uri);
            modelMap.put("senderRef", senderRef);
            modelMap.put("soapAction", soapAction);

            return VIEW_NAME;
        }
    }