Solved
Using "@Reference private QueryBuilder builder;" is not making my servlet work
I am using AEM6. Using
@Reference private QueryBuilder builder;
is not making my servlet work.. is there any Solution for this? is there any other alternative to get the Query builder instance with out using "@Reference"?
package com.kicker.disolutions; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.PrintWriter; import java.net.HttpURLConnection; import java.net.URL; import java.rmi.ServerException; import java.util.ArrayList; import java.util.Dictionary; import java.util.Enumeration; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Map; //QUeryBuilder APIs import com.day.cq.search.QueryBuilder; import com.day.cq.search.Query; import com.day.cq.search.PredicateGroup; import com.day.cq.search.result.SearchResult; import com.day.cq.search.result.Hit; import javax.servlet.Filter; import javax.servlet.FilterChain; import javax.servlet.FilterConfig; import javax.servlet.ServletException; import javax.servlet.ServletRequest; import javax.servlet.ServletResponse; import org.apache.sling.api.adapter.Adaptable; import org.apache.sling.api.resource.Resource; import org.apache.sling.api.resource.ResourceResolver; import org.apache.sling.api.resource.ResourceResolverFactory; import org.apache.felix.scr.annotations.Component; import org.apache.felix.scr.annotations.Properties; import org.apache.felix.scr.annotations.Property; import org.apache.felix.scr.annotations.Reference; import org.apache.felix.scr.annotations.Service; import org.apache.felix.scr.annotations.sling.SlingServlet; import org.apache.jackrabbit.commons.JcrUtils; import org.apache.sling.api.SlingHttpServletRequest; import org.apache.sling.api.SlingHttpServletResponse; import org.apache.sling.api.servlets.SlingSafeMethodsServlet; import org.apache.sling.commons.osgi.OsgiUtil; import org.apache.sling.jcr.api.SlingRepository; import org.apache.felix.scr.annotations.Reference; import org.osgi.service.component.ComponentContext; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import javax.jcr.Session; import javax.jcr.Node; import org.json.simple.JSONObject; import java.util.UUID; @Component(immediate = true, metatype = false, label = "HelloFormServlet") @Service @Properties(value = { @org.apache.felix.scr.annotations.Property(name = "sling.servlet.methods", value = "POST"), @org.apache.felix.scr.annotations.Property(name = "sling.servlet.paths", value = "/bin/HelloFormServlet") }) /* @SlingServlet(paths="/bin/HelloForm", methods = "POST", metatype=true) */ public class PollController extends org.apache.sling.api.servlets.SlingAllMethodsServlet { private static final long serialVersionUID = 2598426539166789515L; /* * @Reference private SlingRepository repository; */ Logger log = LoggerFactory.getLogger(PollController.class); @Reference public QueryBuilder builder; @Override protected void doPost(SlingHttpServletRequest request, SlingHttpServletResponse response) throws ServerException, IOException { int custRec = 0; try { ResourceResolver resourceResolver = request.getResourceResolver(); Session session = resourceResolver.adaptTo(Session.class); String UserName = session.getUserID(); log.info(" session User ---->"+UserName); Node customerRoot = null; String pollsGraphsPath =request.getParameter("path"); injestCustData(UserName,resourceResolver,pollsGraphsPath); log.info("out of Injest data"); //Session session1 = resourceResolver.adaptTo(Session.class); // Create a node that represents the root node Node root = session.getRootNode(); log.info("after session"); // Get the content node in the JCR //Node content = root.getNode("content/geometrixx-outdoors/Test/jcr:content/par/pollsgraph"); Node content = root.getNode(pollsGraphsPath); // Determine if the content/customer node exists custRec = doesCustExist(content); log.info("after doesCustExist ==="+custRec); // -1 means that content/customer does not exist if (custRec == -1) // content/customer does not exist -- create it log.info("no data for Users Saved.. No Polls Taken"); else // content/customer does exist -- retrieve it CheckCustomerCustomerData(UserName, resourceResolver, pollsGraphsPath,session); log.info("getting values from jsp"); response.getWriter().write("This is some text from an external ASP file"); } catch (Exception e) { e.printStackTrace(); } log.info("passing off jsp"); } public String getCustomerData(String firstName,ResourceResolver resourceResolver, String pollsGraphsPath) { UsersInfo cust = null; List<UsersInfo> custList = new ArrayList<UsersInfo>(); Map<String, Object> param = new HashMap<String, Object>(); try { Session session1 = resourceResolver.adaptTo(Session.class); // Create a node that represents the root node Node root = session1.getRootNode(); // Get the content node in the JCR //Node content = root.getNode("content/geometrixx-outdoors/Test/jcr:content/par/pollsgraph"); Node content = root.getNode(pollsGraphsPath); // Determine if the content/customer node exists Node customerRoot = null; int custRec = doesCustExist(content); session1.logout(); /* return convertToString(toXml(custList)); */ } catch (Exception e) { e.printStackTrace(); } return null; } public int injestCustData(String firstName,ResourceResolver resourceResolver, String pollsGraphsPath) { String desc = "PollsUser"; int num = 0; try { // Inject a Sling ResourceResolverFactory // Invoke the adaptTo method to create a Session used to create a // QueryManager //ResourceResolver resourceResolver = resolverFactory.getAdministrativeResourceResolver(null); Session session1 = resourceResolver.adaptTo(Session.class); // Create a node that represents the root node Node root = session1.getRootNode(); // Get the content node in the JCR //Node content = root.getNode("content/geometrixx-outdoors/Test/jcr:content/par/pollsgraph"); Node content = root.getNode(pollsGraphsPath); // Determine if the content/customer node exists Node customerRoot = null; int custRec = doesCustExist(content); // -1 means that content/customer does not exist if (custRec == -1) // content/customer does not exist -- create it customerRoot = content.addNode("pollsAlready", "nt:unstructured"); else // content/customer does exist -- retrieve it customerRoot = content.getNode("pollsAlready"); int custId = custRec + 1; // assign a new id to the customer node // Store content from the client JSP in the JCR Node custNode = customerRoot.addNode("PollUser" + firstName + custId, "nt:unstructured"); // make sure name of node is unique custNode.setProperty("id", custId); custNode.setProperty("firstName", firstName); custNode.setProperty("desc", desc); // Save the session changes and log out session1.save(); //session1.logout(); log.info("out of injestCustData(String, ResourceResolver, String)"); return 0; } catch (Exception e) { log.error("RepositoryException: " + e); } return 0; } private int doesCustExist(Node content) { try { int index = 0; int childRecs = 0; java.lang.Iterable<Node> custNode = JcrUtils.getChildNodes(content, "pollsAlready"); Iterator it = custNode.iterator(); // only going to be 1 pollsgraph/pollsAlready node if it exists if (it.hasNext()) { // Count the number of child nodes to pollsAlready Node customerRoot = content.getNode("pollsAlready"); Iterable itCust = JcrUtils.getChildNodes(customerRoot); Iterator childNodeIt = itCust.iterator(); // Count the number of customer child nodes while (childNodeIt.hasNext()) { childRecs++; childNodeIt.next(); } return childRecs; } else return -1; // content/customer does not exist } catch (Exception e) { e.printStackTrace(); } return 0; } int CheckCustomerCustomerData(String UserName,ResourceResolver resourceResolver, String pollsGraphsPath,Session Session) { String desc = "PollsUser"; int num = 0; try { log.info("in CheckCustomerCustomerData"); PredicateGroup group = new PredicateGroup(); Map<String, String> map = new HashMap<String, String>(); map.put("type", "nt:unstructured"); map.put("nodename", "PollUser*"); map.put("p.offset", "0"); // same as query.setStart(0) below map.put("p.limit", "20"); // same as query.setHitsPerPage(20) below Query query = builder.createQuery(PredicateGroup.create(map), Session); log.info("after building query"); query.setStart(0); query.setHitsPerPage(20); SearchResult result = query.getResult(); log.info("Search Results: " +result.getTotalMatches() ) ; for (Hit hit : result.getHits()) { //Convert the HIT to an asset - each asset will be placed into a ZIP for downloading String path = hit.getPath(); log.info("path--->"+path); Resource rs = resourceResolver.getResource(path); log.info("Resource object-->"+rs); log.info("Resource-->"+rs.getName()); } } catch (Exception e) { log.error("RepositoryException: " + e); } return 0; } }