http://git-wip-us.apache.org/repos/asf/olingo-odata4/blob/f24c3874/samples/tutorials/p3_write/src/main/java/myservice/mynamespace/util/Util.java ---------------------------------------------------------------------- diff --git a/samples/tutorials/p3_write/src/main/java/myservice/mynamespace/util/Util.java b/samples/tutorials/p3_write/src/main/java/myservice/mynamespace/util/Util.java new file mode 100755 index 0000000..8ad19a0 --- /dev/null +++ b/samples/tutorials/p3_write/src/main/java/myservice/mynamespace/util/Util.java @@ -0,0 +1,122 @@ +/* + * 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 myservice.mynamespace.util; + +import java.util.List; +import java.util.Locale; + +import org.apache.olingo.commons.api.data.Entity; +import org.apache.olingo.commons.api.data.EntityCollection; +import org.apache.olingo.commons.api.edm.EdmEntitySet; +import org.apache.olingo.commons.api.edm.EdmEntityType; +import org.apache.olingo.commons.api.edm.EdmPrimitiveType; +import org.apache.olingo.commons.api.edm.EdmPrimitiveTypeException; +import org.apache.olingo.commons.api.edm.EdmProperty; +import org.apache.olingo.commons.api.edm.EdmType; +import org.apache.olingo.commons.api.http.HttpStatusCode; +import org.apache.olingo.server.api.ODataApplicationException; +import org.apache.olingo.server.api.uri.UriInfoResource; +import org.apache.olingo.server.api.uri.UriParameter; +import org.apache.olingo.server.api.uri.UriResource; +import org.apache.olingo.server.api.uri.UriResourceEntitySet; + +public class Util { + + public static EdmEntitySet getEdmEntitySet(UriInfoResource uriInfo) throws ODataApplicationException { + + List<UriResource> resourcePaths = uriInfo.getUriResourceParts(); + // To get the entity set we have to interpret all URI segments + if (!(resourcePaths.get(0) instanceof UriResourceEntitySet)) { + // Here we should interpret the whole URI but in this example we do not support navigation so we throw an + // exception + throw new ODataApplicationException("Invalid resource type for first segment.", HttpStatusCode.NOT_IMPLEMENTED + .getStatusCode(), Locale.ENGLISH); + } + + UriResourceEntitySet uriResource = (UriResourceEntitySet) resourcePaths.get(0); + + return uriResource.getEntitySet(); + } + + public static Entity findEntity(EdmEntityType edmEntityType, EntityCollection entitySet, + List<UriParameter> keyParams) throws ODataApplicationException { + + List<Entity> entityList = entitySet.getEntities(); + + // loop over all entities in order to find that one that matches all keys in request + // e.g. contacts(ContactID=1, CompanyID=1) + for (Entity entity: entityList) { + boolean foundEntity = entityMatchesAllKeys(edmEntityType, entity, keyParams); + if (foundEntity) { + return entity; + } + } + + return null; + } + + public static boolean + entityMatchesAllKeys(EdmEntityType edmEntityType, Entity entity, List<UriParameter> keyParams) + throws ODataApplicationException { + + // loop over all keys + for (final UriParameter key : keyParams) { + // key + String keyName = key.getName(); + String keyText = key.getText(); + + // Edm: we need this info for the comparison below + EdmProperty edmKeyProperty = (EdmProperty) edmEntityType.getProperty(keyName); + Boolean isNullable = edmKeyProperty.isNullable(); + Integer maxLength = edmKeyProperty.getMaxLength(); + Integer precision = edmKeyProperty.getPrecision(); + Boolean isUnicode = edmKeyProperty.isUnicode(); + Integer scale = edmKeyProperty.getScale(); + // get the EdmType in order to compare + EdmType edmType = edmKeyProperty.getType(); + EdmPrimitiveType edmPrimitiveType = (EdmPrimitiveType) edmType; + + // Runtime data: the value of the current entity + // don't need to check for null, this is done in olingo library + Object valueObject = entity.getProperty(keyName).getValue(); + + // now need to compare the valueObject with the keyText String + // this is done using the type.valueToString // + String valueAsString = null; + try { + valueAsString = edmPrimitiveType.valueToString(valueObject, isNullable, maxLength, precision, scale, isUnicode); + } catch (EdmPrimitiveTypeException e) { + throw new ODataApplicationException("Failed to retrieve String value", HttpStatusCode.INTERNAL_SERVER_ERROR + .getStatusCode(), Locale.ENGLISH, e); + } + + if (valueAsString == null) { + return false; + } + + boolean matches = valueAsString.equals(keyText); + if (!matches) { + // if any of the key properties is not found in the entity, we don't need to search further + return false; + } + } + + return true; + } +}
http://git-wip-us.apache.org/repos/asf/olingo-odata4/blob/f24c3874/samples/tutorials/p3_write/src/main/java/myservice/mynamespace/web/DemoServlet.java ---------------------------------------------------------------------- diff --git a/samples/tutorials/p3_write/src/main/java/myservice/mynamespace/web/DemoServlet.java b/samples/tutorials/p3_write/src/main/java/myservice/mynamespace/web/DemoServlet.java new file mode 100755 index 0000000..2e7b65f --- /dev/null +++ b/samples/tutorials/p3_write/src/main/java/myservice/mynamespace/web/DemoServlet.java @@ -0,0 +1,73 @@ +/* + * 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 myservice.mynamespace.web; + +import java.io.IOException; +import java.lang.Override;import java.lang.RuntimeException;import java.util.ArrayList; + +import javax.servlet.ServletException; +import javax.servlet.http.HttpServlet; +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletResponse; +import javax.servlet.http.HttpSession; + +import myservice.mynamespace.data.Storage; +import myservice.mynamespace.service.DemoEdmProvider; +import myservice.mynamespace.service.DemoEntityCollectionProcessor; +import myservice.mynamespace.service.DemoEntityProcessor; +import myservice.mynamespace.service.DemoPrimitiveProcessor; + +import org.apache.olingo.server.api.OData; +import org.apache.olingo.server.api.ODataHttpHandler; +import org.apache.olingo.server.api.ServiceMetadata; +import org.apache.olingo.server.api.edmx.EdmxReference; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +public class DemoServlet extends HttpServlet { + + private static final long serialVersionUID = 1L; + private static final Logger LOG = LoggerFactory.getLogger(DemoServlet.class); + + @Override + protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { + try { + HttpSession session = req.getSession(true); + Storage storage = (Storage) session.getAttribute(Storage.class.getName()); + if (storage == null) { + storage = new Storage(); + session.setAttribute(Storage.class.getName(), storage); + } + + // create odata handler and configure it with EdmProvider and Processor + OData odata = OData.newInstance(); + ServiceMetadata edm = odata.createServiceMetadata(new DemoEdmProvider(), new ArrayList<EdmxReference>()); + ODataHttpHandler handler = odata.createHandler(edm); + handler.register(new DemoEntityCollectionProcessor(storage)); + handler.register(new DemoEntityProcessor(storage)); + handler.register(new DemoPrimitiveProcessor(storage)); + + // let the handler do the work + handler.process(req, resp); + } catch (RuntimeException e) { + LOG.error("Server Error occurred in ExampleServlet", e); + throw new ServletException(e); + } + } +} http://git-wip-us.apache.org/repos/asf/olingo-odata4/blob/f24c3874/samples/tutorials/p3_write/src/main/webapp/WEB-INF/web.xml ---------------------------------------------------------------------- diff --git a/samples/tutorials/p3_write/src/main/webapp/WEB-INF/web.xml b/samples/tutorials/p3_write/src/main/webapp/WEB-INF/web.xml new file mode 100755 index 0000000..21de52a --- /dev/null +++ b/samples/tutorials/p3_write/src/main/webapp/WEB-INF/web.xml @@ -0,0 +1,40 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!-- + 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. +--> +<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; + xmlns="http://java.sun.com/xml/ns/javaee"; xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"; + xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"; + id="WebApp_ID" version="2.5"> + + <!-- Register the HttpServlet implementation --> + <servlet> + <servlet-name>DemoServlet</servlet-name> + <servlet-class>myservice.mynamespace.web.DemoServlet</servlet-class> + <load-on-startup>1</load-on-startup> + </servlet> + + <!-- + Our OData service can be invoked at + http://localhost:8080/DemoService/DemoService.svc + --> + <servlet-mapping> + <servlet-name>DemoServlet</servlet-name> + <url-pattern>/DemoService.svc/*</url-pattern> + </servlet-mapping> +</web-app> \ No newline at end of file http://git-wip-us.apache.org/repos/asf/olingo-odata4/blob/f24c3874/samples/tutorials/p3_write/src/main/webapp/index.jsp ---------------------------------------------------------------------- diff --git a/samples/tutorials/p3_write/src/main/webapp/index.jsp b/samples/tutorials/p3_write/src/main/webapp/index.jsp new file mode 100755 index 0000000..7ffb4ba --- /dev/null +++ b/samples/tutorials/p3_write/src/main/webapp/index.jsp @@ -0,0 +1,26 @@ +<!-- + +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. + +--> +<html> +<body> +<h2>Hello World!</h2> +<a href="DemoService.svc/">OData Olingo V4 Demo Service</a> +</body> +</html> http://git-wip-us.apache.org/repos/asf/olingo-odata4/blob/f24c3874/samples/tutorials/pom.xml ---------------------------------------------------------------------- diff --git a/samples/tutorials/pom.xml b/samples/tutorials/pom.xml index ba86233..e64da0a 100644 --- a/samples/tutorials/pom.xml +++ b/samples/tutorials/pom.xml @@ -36,6 +36,8 @@ <modules> <module>p1_read</module> + <module>p2_readep</module> + <module>p3_write</module> </modules> <build>
