| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.polygene.library.rest.server.restlet.responsewriter; |
| |
| import freemarker.template.Configuration; |
| import freemarker.template.TemplateException; |
| import java.io.IOException; |
| import java.io.Writer; |
| import java.util.Arrays; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import javax.json.JsonArrayBuilder; |
| import javax.json.JsonBuilderFactory; |
| import javax.json.JsonException; |
| import javax.json.JsonObjectBuilder; |
| import org.apache.polygene.api.injection.scope.Service; |
| import org.apache.polygene.api.serialization.Serializer; |
| import org.apache.polygene.library.rest.common.table.Cell; |
| import org.apache.polygene.library.rest.common.table.Column; |
| import org.apache.polygene.library.rest.common.table.Row; |
| import org.apache.polygene.library.rest.common.table.Table; |
| import org.apache.polygene.serialization.javaxjson.JavaxJsonFactories; |
| import org.apache.polygene.spi.serialization.JsonSerializer; |
| 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 JsonSerializer jsonSerializer; |
| |
| @Service |
| private JavaxJsonFactories 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 |
| { |
| JsonBuilderFactory jsonBuilderFactory = json.builderFactory(); |
| JsonObjectBuilder builder = jsonBuilderFactory.createObjectBuilder(); |
| 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; |
| } |
| } |
| } |
| |
| builder.add( "version", "0.6" ); |
| if( reqId != null ) |
| { |
| builder.add( "reqId", reqId ); |
| } |
| builder.add( "status", "ok" ); |
| |
| JsonObjectBuilder tableBuilder = jsonBuilderFactory.createObjectBuilder(); |
| JsonArrayBuilder colsBuilder = jsonBuilderFactory.createArrayBuilder(); |
| List<Column> columnList = tableValue.cols().get(); |
| for( Column columnValue : columnList ) |
| { |
| colsBuilder.add( jsonBuilderFactory.createObjectBuilder() |
| .add( "id", columnValue.id().get() ) |
| .add( "label", columnValue.label().get() ) |
| .add( "type", columnValue.columnType().get() ) |
| .build() ); |
| } |
| tableBuilder.add( "cols", colsBuilder.build() ); |
| |
| JsonArrayBuilder rowsBuilder = jsonBuilderFactory.createArrayBuilder(); |
| for( Row rowValue : tableValue.rows().get() ) |
| { |
| JsonArrayBuilder cellsBuilder = jsonBuilderFactory.createArrayBuilder(); |
| int idx = 0; |
| for( Cell cellValue : rowValue.c().get() ) |
| { |
| Object value = cellValue.v().get(); |
| if( columnList.get( idx ).columnType().get().equals( Table.DATETIME ) |
| && value != null ) |
| { |
| value = value.toString(); |
| } |
| else if( columnList.get( idx ).columnType().get().equals( Table.DATE ) |
| && value != null ) |
| { |
| value = value.toString(); |
| } |
| else if( columnList.get( idx ).columnType().get().equals( Table.TIME_OF_DAY ) |
| && value != null ) |
| { |
| value = value.toString(); |
| } |
| |
| JsonObjectBuilder cellBuilder = jsonBuilderFactory.createObjectBuilder(); |
| if( value != null ) |
| { |
| cellBuilder.add( "v", jsonSerializer.toJson( Serializer.Options.ALL_TYPE_INFO, value ) ); |
| } |
| if( cellValue.f().get() != null ) |
| { |
| cellBuilder.add( "f", cellValue.f().get() ); |
| } |
| cellsBuilder.add( cellBuilder.build() ); |
| idx++; |
| } |
| JsonObjectBuilder rowBuilder = jsonBuilderFactory.createObjectBuilder(); |
| rowBuilder.add( "c", cellsBuilder.build() ); |
| rowsBuilder.add( rowBuilder.build() ); |
| } |
| tableBuilder.add( "rows", rowsBuilder.build() ); |
| builder.add( "table", tableBuilder.build() ); |
| writer.write( builder.build().toString() ); |
| } |
| 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<>(); |
| 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; |
| } |
| } |