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Re: How to start new process from workItemHandler in jBpm 5.4
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created by <a href="https://community.jboss.org/people/snowstormuser">snowstorm tech</a> in <i>jBPM</i> - <a href="https://community.jboss.org/message/799008#799008">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi <a class="jive-link-profile-small" href="https://community.jboss.org/people/vijaykr">vijay saini</a>,</p><p>Use the following programme may be help you,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><blockquote class="jive-quote"><p>import java.io.BufferedReader;</p><p>import java.io.InputStream;</p><p>import java.io.InputStreamReader;</p><p>import java.nio.charset.Charset;</p><p>import java.util.ArrayList;</p><p>import java.util.HashMap;</p><p>import java.util.List;</p><p>import java.util.*;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>import org.apache.http.HttpResponse;</p><p>import org.apache.http.NameValuePair;</p><p>import org.apache.http.client.entity.UrlEncodedFormEntity;</p><p>import org.apache.http.client.methods.HttpGet;</p><p>import org.apache.http.client.methods.HttpPost;</p><p>import org.apache.http.entity.mime.HttpMultipartMode;</p><p>import org.apache.http.entity.mime.MultipartEntity;</p><p>import org.apache.http.entity.mime.content.ContentBody;</p><p>import org.apache.http.entity.mime.content.StringBody;</p><p>import org.apache.http.impl.client.DefaultHttpClient;</p><p>import org.apache.http.message.BasicNameValuePair;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>/*</p><p>* To change this template, choose Tools | Templates</p><p>* and open the template in the editor.</p><p>*/</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>/**</p><p>*</p><p>* @author Shahid</p><p>*/</p><p>public class StartProcessWV {</p><p>     private static final String authentication_url = "<a class="jive-link-external-small" href="http://localhost:8080/gwt-console-server/rs/identity/secure/j_security_check" rel="nofollow" target="_blank">http://localhost:8080/gwt-console-server/rs/identity/secure/j_security_check</a>";</p><p>//private static final String process_start_url = "<a class="jive-link-external-small" href="http://localhost:8080/gwt-console-server/rs/process/definition/defaultPackage.ProcessWV/new_instance" rel="nofollow" target="_blank">http://localhost:8080/gwt-console-server/rs/process/definition/defaultPackage.ProcessWV/new_instance</a>";</p><p>private static final String process_start_url = "<a class="jive-link-external-small" href="http://localhost:8080/gwt-console-server/rs/form/process/defaultPackage.ProcessWV/complete" rel="nofollow" target="_blank">http://localhost:8080/gwt-console-server/rs/form/process/defaultPackage.ProcessWV/complete</a>";</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>private static final String render_form_url = "<a class="jive-link-external-small" href="http://localhost:8080/gwt-console-server/rs/form/process/defaultPackage.ProcessWV/render" rel="nofollow" target="_blank">http://localhost:8080/gwt-console-server/rs/form/process/defaultPackage.ProcessWV/render</a>";</p><p>     public static String KEY_USERNAME = "j_username";</p><p>public static String KEY_PASSWORD = "j_password";</p><p>private DefaultHttpClient httpClient = new DefaultHttpClient(); // keep this out of the method in order to reuse the object for calling other services without losing session</p><p>public String authenticate(String address, String username, String password) {</p><p>        String responseString = "";</p><p>      //  new NameValuePair("j_username", username)</p><p>        List<NameValuePair> formparams = new ArrayList<NameValuePair>();</p><p>        formparams.add(new BasicNameValuePair(KEY_USERNAME, username));</p><p>        formparams.add(new BasicNameValuePair(KEY_PASSWORD, password));</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>HttpPost httpPost = new HttpPost( address );</p><p>       // HttpPost httpPost = new HttpPost("<a class="jive-link-external-small" href="http://" rel="nofollow" target="_blank">http://</a>" + address + "/gwt-console-server/rs/process/j_security_check");</p><p>        InputStreamReader inputStreamReader = null;</p><p>        BufferedReader bufferedReader = null;</p><p>        try {</p><p>            UrlEncodedFormEntity entity = new UrlEncodedFormEntity(formparams, "UTF-8");</p><p>            //UrlEncodedFormEntity entity=new UrlEncodedFormEntity(formparams, "multipart/form-data");</p><p>            httpPost.setEntity(entity);</p><p>            HttpResponse response = httpClient.execute(httpPost);</p><p>            InputStream inputStream = response.getEntity().getContent();</p><p>            inputStreamReader = new InputStreamReader(inputStream);</p><p>            bufferedReader = new BufferedReader(inputStreamReader);</p><p>            StringBuilder stringBuilder = new StringBuilder();</p><p>            String line = bufferedReader.readLine();</p><p>         //   System.out.println("line==>"+line);</p><p>            while (line != null) {</p><p>                stringBuilder.append(line);</p><p>                line = bufferedReader.readLine();</p><p>            }</p><p>            responseString = stringBuilder.toString();</p><p>        } catch (Exception e) {</p><p>            //throw new RuntimeException(e);</p><p>            System.out.println("e = " + e);</p><p>        } finally {</p><p>            if (inputStreamReader != null) {</p><p>                try {</p><p>                    inputStreamReader.close();</p><p>                } catch (Exception e) {</p><p>                    throw new RuntimeException(e);</p><p>                }</p><p>            }</p><p>            if (bufferedReader != null) {</p><p>                try {</p><p>                    bufferedReader.close();</p><p>                } catch (Exception e) {</p><p>                    throw new RuntimeException(e);</p><p>                }</p><p>            }</p><p>        }</p><p>        return responseString;</p><p>    }</p><p>public String requestPostService(String url, Map<String, Object> parameters, boolean multipart) {</p><p>        String responseString = "";</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        MultipartEntity multiPartEntity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);</p><p>        List<BasicNameValuePair> formparams = new ArrayList<BasicNameValuePair>();</p><p>        if (parameters == null) {</p><p>            parameters = new HashMap<String, Object>();</p><p>        }</p><p>        Set<String> keys = parameters.keySet();</p><p>        for (Iterator<String> keysIterator = keys.iterator(); keysIterator.hasNext();) {</p><p>            String keyString = keysIterator.next();</p><p>            String value = parameters.get(keyString).toString();</p><p>            formparams.add(new BasicNameValuePair(keyString, value));</p><p>            if (multipart) {</p><p>                try {</p><p>                    StringBody stringBody = new StringBody(value, Charset.forName("UTF-8"));</p><p>                    //System.out.println(stringBody.);</p><p>                    multiPartEntity.addPart(keyString, (ContentBody) stringBody);</p><p>                } catch (Exception e) {</p><p>                    throw new RuntimeException(e);</p><p>                }</p><p>            }</p><p>        }</p><p>        HttpPost httpPost = new HttpPost(url);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        InputStreamReader inputStreamReader = null;</p><p>        BufferedReader bufferedReader = null;</p><p>        try {</p><p>            if (multipart) {</p><p>                httpPost.setEntity(multiPartEntity);</p><p>            } else {</p><p>                UrlEncodedFormEntity entity =new UrlEncodedFormEntity(formparams, "UTF-8");// new UrlEncodedFormEntity(formparams, "multipart/form-data");</p><p>                ////</p><p>                httpPost.setEntity(entity);</p><p>            }</p><p>            HttpResponse response = httpClient.execute(httpPost);</p><p>            InputStream inputStream = response.getEntity().getContent();</p><p>            inputStreamReader = new InputStreamReader(inputStream);</p><p>            bufferedReader = new BufferedReader(inputStreamReader);</p><p>            StringBuilder stringBuilder = new StringBuilder();</p><p>            String line = bufferedReader.readLine();</p><p>            while (line != null) {</p><p>                stringBuilder.append(line);</p><p>                line = bufferedReader.readLine();</p><p>            }</p><p>            responseString = stringBuilder.toString();</p><p>        } catch (Exception e) {</p><p>            throw new RuntimeException(e);</p><p>        } finally {</p><p>            if (inputStreamReader != null) {</p><p>                try {</p><p>                    inputStreamReader.close();</p><p>                } catch (Exception e) {</p><p>                    throw new RuntimeException(e);</p><p>                }</p><p>            }</p><p>            if (bufferedReader != null) {</p><p>                try {</p><p>                    bufferedReader.close();</p><p>                } catch (Exception e) {</p><p>                    throw new RuntimeException(e);</p><p>                }</p><p>            }</p><p>        }</p><p>        return responseString;</p><p>}</p><p>public String requestGetService(String url, Map<String, Object> parameters, boolean multipart) {</p><p>        String responseString = "";</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        HttpGet httpGet = new HttpGet(url);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>        InputStreamReader inputStreamReader = null;</p><p>        BufferedReader bufferedReader = null;</p><p>        try {</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>            HttpResponse response = httpClient.execute(httpGet);</p><p>            InputStream inputStream = response.getEntity().getContent();</p><p>            inputStreamReader = new InputStreamReader(inputStream);</p><p>            bufferedReader = new BufferedReader(inputStreamReader);</p><p>            StringBuilder stringBuilder = new StringBuilder();</p><p>            String line = bufferedReader.readLine();</p><p>           // System.out.println("line = " + line);</p><p>            while (line != null) {</p><p>                stringBuilder.append(line);</p><p>                line = bufferedReader.readLine();</p><p>            }</p><p>            responseString = stringBuilder.toString();</p><p>        } catch (Exception e) {</p><p>            throw new RuntimeException(e);</p><p>        } finally {</p><p>            if (inputStreamReader != null) {</p><p>                try {</p><p>                    inputStreamReader.close();</p><p>                } catch (Exception e) {</p><p>                    throw new RuntimeException(e);</p><p>                }</p><p>            }</p><p>            if (bufferedReader != null) {</p><p>                try {</p><p>                    bufferedReader.close();</p><p>                } catch (Exception e) {</p><p>                    throw new RuntimeException(e);</p><p>                }</p><p>            }</p><p>        }</p><p>        return responseString;</p><p>}</p><p>public static  void main(String args[])</p><p>{</p><p>    StartProcessWV startProcessWV=new StartProcessWV();</p><p>     Map map=new HashMap();</p><p>    map.put("name", "Shahid Iqbal");</p><p>  //  map.put("age", "29");</p><p>    System.out.println("Login Form==> "+startProcessWV.requestGetService(render_form_url, null, true));</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>   System.out.println(startProcessWV.authenticate(authentication_url, "admin", "admin")+"\n");</p><p>  System.out.println("Render Form==> "+startProcessWV.requestGetService(render_form_url, null, true)+"\n");</p><p>   System.out.println("Process start Output==> "+startProcessWV.requestPostService(process_start_url, map, true));</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>}</p><p>}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></blockquote><p>change the process id in this code and use the following jars</p><p><a href="https://community.jboss.org/servlet/JiveServlet/showImage/2-799005-20364/jars.png"><span> https://community.jboss.org/servlet/JiveServlet/downloadImage/2-799005-20364/jars.png </span></a></p><p>Your process should have the process form.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I hope so it will helpfull for you.</p><p>Sorry for my english</p></div>
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