update pagination methods to utilize search and order the results.

optimized data fetching.

mifosng-provider/src/main/java/org/mifosplatform/portfolio/client/api/ClientsApiResource.java

@@ -15,6 +15,7 @@ import java.util.Set;
 
 import javax.ws.rs.Consumes;
 import javax.ws.rs.DELETE;
+import javax.ws.rs.DefaultValue;
 import javax.ws.rs.GET;
 import javax.ws.rs.POST;
 import javax.ws.rs.PUT;
@@ -126,15 +127,42 @@ public class ClientsApiResource {
         return this.toApiJsonSerializer.serialize(settings, clientData, ClientApiConstants.CLIENT_RESPONSE_DATA_PARAMETERS);
     }
     
+    @GET
+    @Path("/paginatedandsorted")
+    @Consumes({ MediaType.APPLICATION_JSON })
+    @Produces({ MediaType.APPLICATION_JSON })
+    public String retrieveAllPaginatedAndSorted(@Context final UriInfo uriInfo, @QueryParam("sqlSearch") final String sqlSearch,
+            @QueryParam("officeId") final Long officeId, @QueryParam("externalId") final String externalId,
+            @QueryParam("displayName") final String displayName, @QueryParam("firstName") final String firstname,
+            @QueryParam("lastName") final String lastname, @QueryParam("underHierarchy") final String hierarchy,
+            @DefaultValue("0") @QueryParam("offset") final int offset, @DefaultValue("200") @QueryParam("limit") final int limit,
+            @QueryParam("orderBy") final String orderBy, @QueryParam("sortOrder") final String sortOrder) throws SQLException {
+        
+        context.authenticatedUser().validateHasReadPermission(ClientApiConstants.CLIENT_RESOURCE_NAME);
+        
+        final SearchParameters searchParameters = SearchParameters.forClients(sqlSearch, officeId, externalId, displayName, firstname,
+                lastname, hierarchy);
+        Page<ClientData> clientData = this.clientReadPlatformService.retrieveAllPaginatedAndSorted(searchParameters, offset, limit, orderBy, sortOrder);
+        return this.toApiJsonSerializer.serialize(clientData);
+    }
+
+  
     @GET
     @Path("/paginated")
     @Consumes({ MediaType.APPLICATION_JSON })
     @Produces({ MediaType.APPLICATION_JSON })
-    public String retrievePaginated(@QueryParam("pageNo") final int pageNo, @QueryParam("pageSize") final int pageSize,
-            @Context final UriInfo uriInfo) throws SQLException {
+    public String retrieveAllPaginated(@Context final UriInfo uriInfo, @QueryParam("sqlSearch") final String sqlSearch,
+            @QueryParam("officeId") final Long officeId, @QueryParam("externalId") final String externalId,
+            @QueryParam("displayName") final String displayName, @QueryParam("firstName") final String firstname,
+            @QueryParam("lastName") final String lastname, @QueryParam("underHierarchy") final String hierarchy,
+            @DefaultValue("0") @QueryParam("offset") final int offset, @DefaultValue("200") @QueryParam("limit") final int limit)
+            throws SQLException {
         context.authenticatedUser().validateHasReadPermission(ClientApiConstants.CLIENT_RESOURCE_NAME);
-        Page<ClientData> clientData = this.clientReadPlatformService.retrievePaginated(pageNo, pageSize);
-        return clientData.toString();
+        
+        final SearchParameters searchParameters = SearchParameters.forClients(sqlSearch, officeId, externalId, displayName, firstname,
+                lastname, hierarchy);
+        Page<ClientData> clientData = this.clientReadPlatformService.retrieveAllPaginatedAndSorted(searchParameters, offset, limit, null, null);
+        return this.toApiJsonSerializer.serialize(clientData);
     }
 
     @POST

mifosng-provider/src/main/java/org/mifosplatform/portfolio/client/service/ClientReadPlatformService.java

@@ -19,7 +19,7 @@ public interface ClientReadPlatformService {
 
     Collection<ClientData> retrieveAll(SearchParameters searchParameters);
     
-    Page<ClientData> retrievePaginated(int pageNo, int pageSize);
+    Page<ClientData> retrieveAllPaginatedAndSorted(SearchParameters searchParameters, int pageNo, int pageSize, String sortBy, String sortOrder);
 
     ClientData retrieveOne(Long clientId);
 

mifosng-provider/src/main/java/org/mifosplatform/portfolio/client/service/ClientReadPlatformServiceImpl.java

@@ -36,7 +36,6 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.dao.EmptyResultDataAccessException;
 import org.springframework.jdbc.core.JdbcTemplate;
 import org.springframework.jdbc.core.RowMapper;
-import org.springframework.jdbc.core.simple.ParameterizedRowMapper;
 import org.springframework.stereotype.Service;
 
 @Service
@@ -91,32 +90,30 @@ public class ClientReadPlatformServiceImpl implements ClientReadPlatformService
     }
 
     @Override
-    public Page<ClientData> retrievePaginated(final int pageNo, final int pageSize) {
+    public Page<ClientData> retrieveAllPaginatedAndSorted(final SearchParameters searchParameters, final int offset, final int limit,
+            final String orderby, final String sortOrder) {
+
+        final AppUser currentUser = context.authenticatedUser();
+        final String hierarchy = currentUser.getOffice().getHierarchy();
+        final String hierarchySearchString = hierarchy + "%";
+
+        String sql = "select SQL_CALC_FOUND_ROWS " + this.clientMapper.schema() + " where o.hierarchy like ?";
+
+        final String extraCriteria = buildSqlStringFromClientCriteria(searchParameters);
+
+        if (StringUtils.isNotBlank(extraCriteria)) sql += " and (" + extraCriteria + ")";
+
+        if (orderby != null && sortOrder != null) {
+            if (!orderby.equalsIgnoreCase("") && !sortOrder.equalsIgnoreCase("")) {
+                sql += " order by " + orderby + " " + sortOrder;
+            }
+        } else
+            sql += " order by c.display_name ASC, c.account_no ASC";
+
         PaginationHelper<ClientData> ph = new PaginationHelper<ClientData>();
-        return ph.fetchPage(jdbcTemplate, "SELECT count(*) FROM m_client ORDER BY firstname", "SELECT * FROM m_client ORDER BY firstname",
-                null, pageNo, pageSize, new ParameterizedRowMapper<ClientData>() {
-
-                    @Override
-                    public ClientData mapRow(ResultSet rs, int rowNum) throws SQLException {
-                        final String accountNo = rs.getString("account_no");
-                        final EnumOptionData status = null;
-                        final Long officeId = JdbcSupport.getLong(rs, "office_id");
-                        final Long id = JdbcSupport.getLong(rs, "id");
-                        final String firstname = rs.getString("firstname");
-                        final String middlename = rs.getString("middlename");
-                        final String lastname = rs.getString("lastname");
-                        final String fullname = rs.getString("fullname");
-                        final String displayName = rs.getString("display_name");
-                        final String externalId = rs.getString("external_Id");
-                        final LocalDate activationDate = JdbcSupport.getLocalDate(rs, "activation_date");
-                        final String imageKey = rs.getString("image_key");
-                        final String officeName = null;
-
-                        return ClientData.instance(accountNo, status, officeId, officeName, id, firstname, middlename, lastname, fullname,
-                                displayName, externalId, activationDate, imageKey);
-                    }
-                });
-
+        String sqlCountRows = "SELECT FOUND_ROWS()";
+        String sqlFetchRows = sql + " LIMIT " + limit + " OFFSET " + offset;
+        return ph.fetchPage(jdbcTemplate, sqlCountRows, sqlFetchRows, new Object[] { hierarchySearchString }, offset, limit, clientMapper);
     }
     
     private String buildSqlStringFromClientCriteria(final SearchParameters searchParameters) {

mifosng-provider/src/main/java/org/mifosplatform/portfolio/pagination/Page.java

@@ -8,17 +8,13 @@ import com.google.gson.Gson;
 public class Page<E> {
 
     private int pageNumber;
-    private int pagesAvailable;
+    private int totalFilteredRecords;
     private List<E> pageItems = new ArrayList<E>();
 
     public void setPageNumber(int pageNumber) {
         this.pageNumber = pageNumber;
     }
 
-    public void setPagesAvailable(int pagesAvailable) {
-        this.pagesAvailable = pagesAvailable;
-    }
-
     public void setPageItems(List<E> pageItems) {
         this.pageItems = pageItems;
     }
@@ -26,9 +22,14 @@ public class Page<E> {
     public int getPageNumber() {
         return pageNumber;
     }
+  
+    public int getTotalFilteredRecords() {
+        return this.totalFilteredRecords;
+    }
 
-    public int getPagesAvailable() {
-        return pagesAvailable;
+    
+    public void setTotalFilteredRecords(int totalFilteredRecords) {
+        this.totalFilteredRecords = totalFilteredRecords;
     }
 
     public List<E> getPageItems() {

mifosng-provider/src/main/java/org/mifosplatform/portfolio/pagination/PaginationHelper.java

@@ -1,50 +1,23 @@
 package org.mifosplatform.portfolio.pagination;
 
-import java.sql.ResultSet;
-import java.sql.SQLException;
-import java.util.List;
-
-import org.springframework.dao.DataAccessException;
 import org.springframework.jdbc.core.JdbcTemplate;
-import org.springframework.jdbc.core.ResultSetExtractor;
-import org.springframework.jdbc.core.simple.ParameterizedRowMapper;
+import org.springframework.jdbc.core.RowMapper;
 
 public class PaginationHelper<E> {
 
     public Page<E> fetchPage(final JdbcTemplate jt, final String sqlCountRows, final String sqlFetchRows, final Object args[],
-            final int pageNo, final int pageSize, final ParameterizedRowMapper<E> rowMapper) {
+            final int offset, final int limit, final RowMapper<E> rowMapper) {
+
+        final Page<E> page = new Page<E>();
+
+        page.getPageItems().addAll(jt.query(sqlFetchRows, args, rowMapper));
 
         // determine how many rows are available
-        final int rowCount = jt.queryForInt(sqlCountRows, args);
+        final int totalFilteredRecords = jt.queryForInt(sqlCountRows);
 
-        // calculate the number of pages
-        int pageCount = rowCount / pageSize;
-        if (rowCount > pageSize * pageCount) {
-            pageCount++;
-        }
+        page.setPageNumber(offset);//TODO will change to suit limit & offset
+        page.setTotalFilteredRecords(totalFilteredRecords);
 
-        // create the page object
-        final Page<E> page = new Page<E>();
-        page.setPageNumber(pageNo);
-        page.setPagesAvailable(pageCount);
-
-        // fetch a single page of results
-        final int startRow = (pageNo - 1) * pageSize;
-        jt.query(sqlFetchRows, new ResultSetExtractor<E>() {
-
-            @Override
-            public E extractData(ResultSet rs) throws SQLException, DataAccessException {
-                final List<E> pageItems = page.getPageItems();
-                int currentRow = 0;
-                while (rs.next() && currentRow < startRow + pageSize) {
-                    if (currentRow >= startRow) {
-                        pageItems.add(rowMapper.mapRow(rs, currentRow));
-                    }
-                    currentRow++;
-                }
-                return (E) page;
-            }
-        });
         return page;
     }