| /** |
| * |
| * Copyright 2009-2011 Rickard Öberg AB |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.zest.library.rest.server.restlet.responsewriter; |
| |
| import freemarker.template.Configuration; |
| import freemarker.template.TemplateException; |
| import java.io.IOException; |
| import java.io.Writer; |
| import java.text.SimpleDateFormat; |
| import java.util.Arrays; |
| import java.util.Date; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import org.json.JSONException; |
| import org.json.JSONWriter; |
| import org.apache.zest.api.injection.scope.Service; |
| import org.apache.zest.api.util.Dates; |
| import org.apache.zest.library.rest.common.table.Cell; |
| import org.apache.zest.library.rest.common.table.Column; |
| import org.apache.zest.library.rest.common.table.Row; |
| import org.apache.zest.library.rest.common.table.Table; |
| import org.restlet.Response; |
| import org.restlet.data.CharacterSet; |
| import org.restlet.data.MediaType; |
| import org.restlet.representation.Representation; |
| import org.restlet.representation.WriterRepresentation; |
| import org.restlet.resource.ResourceException; |
| |
| /** |
| * JAVADOC |
| */ |
| public class TableResponseWriter extends AbstractResponseWriter |
| { |
| private static final List<MediaType> supportedMediaTypes = Arrays.asList( MediaType.TEXT_HTML, MediaType.APPLICATION_JSON ); |
| |
| @Service |
| private Configuration cfg; |
| |
| @Override |
| public boolean writeResponse( final Object result, final Response response ) |
| throws ResourceException |
| { |
| if( result instanceof Table ) |
| { |
| MediaType type = getVariant( response.getRequest(), ENGLISH, supportedMediaTypes ).getMediaType(); |
| if( MediaType.APPLICATION_JSON.equals( type ) ) |
| { |
| |
| response.setEntity( new WriterRepresentation( MediaType.APPLICATION_JSON ) |
| { |
| @Override |
| public void write( Writer writer ) |
| throws IOException |
| { |
| try |
| { |
| JSONWriter json = new JSONWriter( writer ); |
| Table tableValue = (Table) result; |
| |
| // Parse parameters |
| String tqx = response.getRequest().getResourceRef().getQueryAsForm().getFirstValue( "tqx" ); |
| String reqId = null; |
| if( tqx != null ) |
| { |
| String[] params = tqx.split( ";" ); |
| for( String param : params ) |
| { |
| String[] p = param.split( ":" ); |
| String key = p[ 0 ]; |
| String value = p[ 1 ]; |
| |
| if( key.equals( "reqId" ) ) |
| { |
| reqId = value; |
| } |
| } |
| } |
| |
| json.object().key( "version" ).value( "0.6" ); |
| if( reqId != null ) |
| { |
| json.key( "reqId" ).value( reqId ); |
| } |
| json.key( "status" ).value( "ok" ); |
| json.key( "table" ).object(); |
| List<Column> columnList = tableValue.cols().get(); |
| json.key( "cols" ).array(); |
| for( Column columnValue : columnList ) |
| { |
| json.object(). |
| key( "id" ).value( columnValue.id().get() ). |
| key( "label" ).value( columnValue.label().get() ). |
| key( "type" ).value( columnValue.columnType().get() ). |
| endObject(); |
| } |
| json.endArray(); |
| |
| json.key( "rows" ).array(); |
| for( Row rowValue : tableValue.rows().get() ) |
| { |
| json.object(); |
| json.key( "c" ).array(); |
| int idx = 0; |
| for( Cell cellValue : rowValue.c().get() ) |
| { |
| json.object(); |
| Object value = cellValue.v().get(); |
| if( columnList.get( idx ) |
| .columnType() |
| .get() |
| .equals( Table.DATETIME ) && value != null ) |
| { |
| value = Dates.toUtcString( (Date) value ); |
| } |
| else if( columnList.get( idx ) |
| .columnType() |
| .get() |
| .equals( Table.DATE ) && value != null ) |
| { |
| value = new SimpleDateFormat( "yyyy-MM-dd" ).format( (Date) value ); |
| } |
| else if( columnList.get( idx ) |
| .columnType() |
| .get() |
| .equals( Table.TIME_OF_DAY ) && value != null ) |
| { |
| value = new SimpleDateFormat( "HH:mm:ss" ).format( (Date) value ); |
| } |
| |
| if( value != null ) |
| { |
| json.key( "v" ).value( value ); |
| } |
| if( cellValue.f().get() != null ) |
| { |
| json.key( "f" ).value( cellValue.f().get() ); |
| } |
| json.endObject(); |
| |
| idx++; |
| } |
| json.endArray(); |
| json.endObject(); |
| } |
| json.endArray(); |
| json.endObject(); |
| json.endObject(); |
| } |
| catch( JSONException e ) |
| { |
| throw new IOException( e ); |
| } |
| } |
| } ); |
| return true; |
| } |
| else if( MediaType.TEXT_HTML.equals( type ) ) |
| { |
| Representation rep = new WriterRepresentation( MediaType.TEXT_HTML ) |
| { |
| @Override |
| public void write( Writer writer ) |
| throws IOException |
| { |
| Map<String, Object> context = new HashMap<String, Object>(); |
| context.put( "request", response.getRequest() ); |
| context.put( "response", response ); |
| |
| context.put( "result", result ); |
| try |
| { |
| cfg.getTemplate( "table.htm" ).process( context, writer ); |
| } |
| catch( TemplateException e ) |
| { |
| throw new IOException( e ); |
| } |
| } |
| }; |
| rep.setCharacterSet( CharacterSet.UTF_8 ); |
| response.setEntity( rep ); |
| return true; |
| } |
| } |
| return false; |
| } |
| } |