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3090 mandeep.dh 1 
/**
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 *
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 */
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package in.shop2020.serving.controllers;
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import java.io.BufferedInputStream;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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import java.io.InputStream;
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import javax.servlet.ServletOutputStream;
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import in.shop2020.crm.Activity;
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import in.shop2020.crm.Agent;
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import in.shop2020.crm.SearchFilter;
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import in.shop2020.crm.Ticket;
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import in.shop2020.serving.auth.CRMAuthorizingRealm;
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import in.shop2020.thrift.clients.CRMClient;
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import in.shop2020.util.CRMConstants;
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import org.apache.thrift.TException;
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/**
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 * Action class to display activity details.
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 * @author mandeep
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 */
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public class ActivityInfoController extends BaseController {
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    private static final String SEMI_COLON = ";";
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    /**
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     *
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     */
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    private static final long serialVersionUID = 1L;
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    private long activityId;
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    private Ticket ticket;
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    private Activity activity;
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    private String attachment;
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    public String index() throws TException
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    {
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        SearchFilter searchFilter = new SearchFilter();
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        searchFilter.setActivityId(activityId);
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        crmServiceClient         = new CRMClient().getClient();
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        activity = crmServiceClient.getActivities(searchFilter).get(0);
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        if (activity != null && activity.isSetTicketId()) {
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            searchFilter.setTicketId(activity.getTicketId());
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            ticket = crmServiceClient.getTickets(searchFilter).get(0);
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        }
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        return INDEX;
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    }
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    public Ticket getTicket() {
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        return ticket;
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    }
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    public String[] getAttachments() {
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        String attachments = activity.getAttachments();
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        return attachments == null ? new String[0] : attachments.split(SEMI_COLON);
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    }
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    public Activity getActivity() {
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        return activity;
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    }
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    public void setActivityId(long activityId) {
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        this.activityId = activityId;
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    }
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    public Agent getAgent(long agentId) throws TException {
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        return CRMAuthorizingRealm.getAgent(agentId);
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    }
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    public String getAttachment() {
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        return attachment;
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    }
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    public void setAttachment(String attachment) {
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        this.attachment = attachment;
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    }
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    public void downloadAttachment() {
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        byte[] buffer = null;
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        try {
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            if (attachment == null || attachment.isEmpty()) {
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                throw new Exception("File name is empty");
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            }
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            String fileName = CRMConstants.ATTACHMENTS_ARCHIVE_DIR + attachment;
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            File file = new File(fileName);
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            buffer = new byte[(int)file.length()];
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            InputStream input = null;
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            try {
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                int totalBytesRead = 0;
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                input = new BufferedInputStream(new FileInputStream(file));
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                while(totalBytesRead < buffer.length){
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                    int bytesRemaining = buffer.length - totalBytesRead;
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                    //input.read() returns -1, 0, or more :
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                    int bytesRead = input.read(buffer, totalBytesRead, bytesRemaining);
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                    if (bytesRead > 0){
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                        totalBytesRead = totalBytesRead + bytesRead;
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                    }
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                }
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                /*
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                 the above style is a bit tricky: it places bytes into the 'buffer' array;
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                 'buffer' is an output parameter;
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                 the while loop usually has a single iteration only.
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                 */
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            }
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            finally {
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                input.close();
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            }
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        }
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        catch (FileNotFoundException ex) {
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            System.out.println("FILE NOT FOUND : " + attachment);
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        }
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        catch (IOException ex) {
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            System.out.println("FILE NOT FOUND : " + attachment);
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        } catch (Exception e) {
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            System.out.println(e.getMessage());
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        }
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        response.setHeader("Content-disposition", "inline; filename=" + attachment );
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        ServletOutputStream sos;
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        try {
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            sos = response.getOutputStream();
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            sos.write(buffer);
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            sos.flush();
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        } catch (IOException e) {
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            System.out.println("Unable to stream the manifest file");
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        }
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    }
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}