diff options
Diffstat (limited to 'sandbox/event/modules/binding-gdata-runtime/src/main/java/org/apache/tuscany/sca/binding/gdata/provider/GDataBindingInvoker.java')
| -rw-r--r-- | sandbox/event/modules/binding-gdata-runtime/src/main/java/org/apache/tuscany/sca/binding/gdata/provider/GDataBindingInvoker.java | 510 |
1 files changed, 510 insertions, 0 deletions
diff --git a/sandbox/event/modules/binding-gdata-runtime/src/main/java/org/apache/tuscany/sca/binding/gdata/provider/GDataBindingInvoker.java b/sandbox/event/modules/binding-gdata-runtime/src/main/java/org/apache/tuscany/sca/binding/gdata/provider/GDataBindingInvoker.java new file mode 100644 index 0000000000..d2c5ed4017 --- /dev/null +++ b/sandbox/event/modules/binding-gdata-runtime/src/main/java/org/apache/tuscany/sca/binding/gdata/provider/GDataBindingInvoker.java @@ -0,0 +1,510 @@ +/* + * 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.tuscany.sca.binding.gdata.provider; + +import java.util.logging.Level; +import java.util.logging.Logger; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.invocation.Invoker; +import org.apache.tuscany.sca.invocation.Message; +import org.osoa.sca.ServiceRuntimeException; + +import com.google.gdata.client.GoogleService; +import com.google.gdata.client.Query; +import com.google.gdata.data.BaseEntry; +import com.google.gdata.data.BaseFeed; +import com.google.gdata.data.Entry; +import com.google.gdata.data.ExtensionProfile; +import com.google.gdata.data.Feed; +import com.google.gdata.data.ParseSource; +import com.google.gdata.util.AuthenticationException; +import java.net.URL; +import com.google.gdata.util.ResourceNotFoundException; +import com.google.gdata.util.common.xml.XmlWriter; +import java.io.StringWriter; +import org.apache.commons.httpclient.HttpClient; +import org.apache.commons.httpclient.methods.DeleteMethod; +import org.apache.commons.httpclient.methods.GetMethod; +import org.apache.commons.httpclient.methods.PostMethod; +import org.apache.commons.httpclient.methods.PutMethod; +import org.apache.commons.httpclient.methods.StringRequestEntity; +import org.apache.tuscany.sca.binding.gdata.GDataBinding; +import org.apache.tuscany.sca.data.collection.NotFoundException; +import org.apache.tuscany.sca.invocation.DataExchangeSemantics; + +/** + * Invoker for the Atom binding. + * + * @version $Rev$ $Date$ + */ +class GDataBindingInvoker implements Invoker, DataExchangeSemantics { + + Operation operation; + GDataBinding binding; + HttpClient httpClient; + String authorizationHeader; + GoogleService service; + + GDataBindingInvoker(Operation operation, GDataBinding binding, HttpClient httpClient, String authorizationHeader) { + this.operation = operation; + this.binding = binding; + this.httpClient = httpClient; + this.authorizationHeader = authorizationHeader; + + //Create the GoogleService + if (!binding.getServiceType().equals("sca")) { + this.service = new GoogleService(binding.getServiceType(), ""); + + try { + service.setUserCredentials(binding.getUsername(), binding.getPassword()); + } catch (AuthenticationException ex) { + //FIXME - promote the exception + Logger.getLogger(GDataReferenceBindingProvider.class.getName()).log(Level.SEVERE, null, ex); + } + + this.service.setConnectTimeout(60000); + } + } + + public Message invoke(Message msg) { + // Shouldn't get here, as the only supported methods are + // defined in the ResourceCollection interface, and implemented + // by specific invoker subclasses + throw new UnsupportedOperationException(operation.getName()); + } + + /** + * Get operation invoker + */ + public static class GetInvoker extends GDataBindingInvoker { + + public GetInvoker(Operation operation, GDataBinding binding, HttpClient httpClient, String authorizationHeader) { + super(operation, binding, httpClient, authorizationHeader); + } + + @Override + public Message invoke(Message msg) { + + BaseEntry entry; + GetMethod getMethod = null; + boolean parsing = false; + + String id = (String) ((Object[]) msg.getBody())[0]; + + try { + // serviceType == "sca" - Send an HTTP GET + if (service == null) { + getMethod = new GetMethod(binding.getURI() + "/" + id); + getMethod.setRequestHeader("Authorization", authorizationHeader); + + httpClient.executeMethod(getMethod); + int status = getMethod.getStatusCode(); + + // Read the Atom feed + if (status == 200) { + + parsing = true; + + ParseSource parser = new ParseSource(getMethod.getResponseBodyAsStream()); + entry = BaseEntry.readEntry(parser); + + msg.setBody(entry); + + } else if (status == 404) { + msg.setFaultBody(new NotFoundException()); + } else { + msg.setFaultBody(new ServiceRuntimeException("HTTP status code: " + status)); + } + + } // serviceType != "sca" - Use GoogleService + else { + entry = service.getEntry(new URL(id), Entry.class); + msg.setBody(entry); + } + } catch (ResourceNotFoundException ex) { + msg.setFaultBody(new ResourceNotFoundException("Invalid Resource at " + binding.getURI())); + } catch (Exception ex) { + msg.setFaultBody(new ServiceRuntimeException(ex)); + } finally { + if (service == null && !parsing) { + getMethod.releaseConnection(); + } + return msg; + } + + } + } + + /** + * Post operation invoker + */ + public static class PostInvoker extends GDataBindingInvoker { + + public PostInvoker(Operation operation, GDataBinding binding, HttpClient httpClient, String authorizationHeader) { + super(operation, binding, httpClient, authorizationHeader); + } + + @Override + public Message invoke(Message msg) { + + BaseEntry entry = (BaseEntry) ((Object[]) msg.getBody())[0]; + BaseEntry returnedEntry; + + PostMethod postMethod = null; + boolean parsing = false; + + try { + // serviceType == "sca" - Send an HTTP POST + if (service == null) { + postMethod = new PostMethod(binding.getURI()); + postMethod.setRequestHeader("Authorization", authorizationHeader); + + // Write the Atom entry + StringWriter strWriter = new StringWriter(); + XmlWriter writer = new XmlWriter(strWriter); + entry.generateAtom(writer, new ExtensionProfile()); + writer.flush(); + writer.close(); + + postMethod.setRequestHeader("Content-type", "application/atom+xml; charset=utf-8"); + postMethod.setRequestEntity(new StringRequestEntity(strWriter.toString())); + + httpClient.executeMethod(postMethod); + int status = postMethod.getStatusCode(); + + // Read the Atom feed + if (status == 200 || status == 201) { + + parsing = true; + + ParseSource parser = new ParseSource(postMethod.getResponseBodyAsStream()); + returnedEntry = BaseEntry.readEntry(parser); + + msg.setBody(returnedEntry); + + } else if (status == 404) { + msg.setFaultBody(new NotFoundException()); + } else { + msg.setFaultBody(new ServiceRuntimeException("HTTP status code: " + status)); + } + + } // serviceType != "sca" - Use GoogleService + else { + returnedEntry = service.insert(new URL(binding.getURI()), entry); + msg.setBody(returnedEntry); + } + } catch (ResourceNotFoundException ex) { + msg.setFaultBody(new ResourceNotFoundException("Invalid Resource at " + binding.getURI())); + } catch (Exception ex) { + msg.setFaultBody(new ServiceRuntimeException(ex)); + } finally { + if (service == null && !parsing) { + postMethod.releaseConnection(); + } + return msg; + } + + } + } + + /** + * Put operation invoker + */ + public static class PutInvoker extends GDataBindingInvoker { + + public PutInvoker(Operation operation, GDataBinding binding, HttpClient httpClient, String authorizationHeader) { + super(operation, binding, httpClient, authorizationHeader); + } + + @Override + public Message invoke(Message msg) { + + BaseEntry updatedEntry; + String id = (String) ((Object[]) msg.getBody())[0]; + BaseEntry entry = (BaseEntry) ((Object[]) msg.getBody())[1]; + + PutMethod putMethod = null; + boolean parsing = false; + + try { + // serviceType == "sca" - Send an HTTP PUT + if (service == null) { + putMethod = new PutMethod(binding.getURI() + "/" + id); + putMethod.setRequestHeader("Authorization", authorizationHeader); + + // Write the Atom entry + StringWriter strWriter = new StringWriter(); + XmlWriter writer = new XmlWriter(strWriter); + entry.generateAtom(writer, new ExtensionProfile()); + writer.flush(); + writer.close(); + + putMethod.setRequestHeader("Content-type", "application/atom+xml; charset=utf-8"); + putMethod.setRequestEntity(new StringRequestEntity(strWriter.toString())); + + httpClient.executeMethod(putMethod); + int status = putMethod.getStatusCode(); + + // Read the Atom feed + if (status == 200 || status == 201) { + + parsing = true; + + ParseSource parser = new ParseSource(putMethod.getResponseBodyAsStream()); + updatedEntry = BaseEntry.readEntry(parser); + + msg.setBody(updatedEntry); + + } else if (status == 404) { + msg.setFaultBody(new NotFoundException()); + } else { + msg.setFaultBody(new ServiceRuntimeException("HTTP status code: " + status)); + } + + } // serviceType != "sca" - Use GoogleService + else { + updatedEntry = service.update(new URL(id), entry); + msg.setBody(updatedEntry); + } + } catch (ResourceNotFoundException ex) { + msg.setFaultBody(new ResourceNotFoundException("Invalid Resource at " + binding.getURI())); + } catch (Exception ex) { + msg.setFaultBody(new ServiceRuntimeException(ex)); + } finally { + if (service == null && !parsing) { + putMethod.releaseConnection(); + } + return msg; + } + } + } + + /** + * Delete operation invoker + */ + public static class DeleteInvoker extends GDataBindingInvoker { + + public DeleteInvoker(Operation operation, GDataBinding binding, HttpClient httpClient, String authorizationHeader) { + super(operation, binding, httpClient, authorizationHeader); + } + + @Override + public Message invoke(Message msg) { + + DeleteMethod deleteMethod = null; + + String id = (String) ((Object[]) msg.getBody())[0]; + + try { + // serviceType == "sca" - Send an HTTP DELETE + if (service == null) { + deleteMethod = new DeleteMethod(binding.getURI() + "/" + id); + deleteMethod.setRequestHeader("Authorization", authorizationHeader); + + httpClient.executeMethod(deleteMethod); + int status = deleteMethod.getStatusCode(); + + // Read the Atom feed + if (status == 200) { + msg.setBody(null); + + } else if (status == 404) { + msg.setFaultBody(new NotFoundException()); + } else { + msg.setFaultBody(new ServiceRuntimeException("HTTP status code: " + status)); + } + + } // serviceType != "sca" - Use GoogleService + else { + service.delete(new URL(id)); + msg.setBody(null); + } + } catch (ResourceNotFoundException ex) { + msg.setFaultBody(new ResourceNotFoundException("Invalid Resource at " + binding.getURI())); + } catch (Exception ex) { + msg.setFaultBody(new ServiceRuntimeException(ex)); + } finally { + if (service == null) { + deleteMethod.releaseConnection(); + } + return msg; + } + + } + } + + /** + * GetAll operation invoker + */ + public static class GetAllInvoker extends GDataBindingInvoker { + + public GetAllInvoker(Operation operation, GDataBinding binding, HttpClient httpClient, String authorizationHeader) { + super(operation, binding, httpClient, authorizationHeader); + } + + @Override + public Message invoke(Message msg) { + + BaseFeed feed; + GetMethod getMethod = null; + boolean parsing = false; + + try { + // serviceType == "sca" - Send an HTTP GET + if (service == null) { + getMethod = new GetMethod(binding.getURI()); + getMethod.setRequestHeader("Authorization", authorizationHeader); + + httpClient.executeMethod(getMethod); + int status = getMethod.getStatusCode(); + + // Read the Atom feed + if (status == 200) { + + parsing = true; + + ParseSource parser = new ParseSource(getMethod.getResponseBodyAsStream()); + feed = BaseFeed.readFeed(parser); + + msg.setBody(feed); + + } else if (status == 404) { + msg.setFaultBody(new NotFoundException()); + } else { + msg.setFaultBody(new ServiceRuntimeException("HTTP status code: " + status)); + } + + } // serviceType != "sca" - Use GoogleService + else { + feed = service.getFeed(new URL(binding.getURI()), Feed.class); + msg.setBody(feed); + } + } catch (ResourceNotFoundException ex) { + msg.setFaultBody(new ResourceNotFoundException("Invalid Resource at " + binding.getURI())); + } catch (Exception ex) { + msg.setFaultBody(new ServiceRuntimeException(ex)); + } finally { + if (service == null && !parsing) { + getMethod.releaseConnection(); + } + return msg; + } + } + } + + /** + * Query operation invoker + */ + public static class QueryInvoker extends GDataBindingInvoker { + + public QueryInvoker(Operation operation, GDataBinding binding, HttpClient httpClient, String authorizationHeader) { + super(operation, binding, httpClient, authorizationHeader); + } + + @Override + public Message invoke(Message msg) { + + BaseFeed feed; + GetMethod getMethod = null; + boolean parsing = false; + + String queryString = (String) ((Object[]) msg.getBody())[0]; + + try { + // serviceType == "sca" - Send an HTTP GET + if (service == null) { + getMethod = new GetMethod(binding.getURI()); + getMethod.setRequestHeader("Authorization", authorizationHeader); + getMethod.setQueryString(queryString); + + httpClient.executeMethod(getMethod); + int status = getMethod.getStatusCode(); + + // Read the Atom feed + if (status == 200) { + + parsing = true; + + ParseSource parser = new ParseSource(getMethod.getResponseBodyAsStream()); + feed = BaseFeed.readFeed(parser); + + msg.setBody(feed); + + } else if (status == 404) { + msg.setFaultBody(new NotFoundException()); + } else { + msg.setFaultBody(new ServiceRuntimeException("HTTP status code: " + status)); + } + + } // serviceType != "sca" - Use GoogleService + else { + Query query = new Query(new URL(binding.getURI())); + query.setFullTextQuery(queryString); + feed = service.query(query, Feed.class); + msg.setBody(feed); + } + } catch (ResourceNotFoundException ex) { + msg.setFaultBody(new ResourceNotFoundException("Invalid Resource at " + binding.getURI())); + } catch (Exception ex) { + msg.setFaultBody(new ServiceRuntimeException(ex)); + } finally { + if (service == null && !parsing) { + getMethod.releaseConnection(); + } + return msg; + } + } + } + + /** + * PostMedia operation invoker + */ + public static class PostMediaInvoker extends GDataBindingInvoker { + + public PostMediaInvoker(Operation operation, GDataBinding binding, HttpClient httpClient, String authorizationHeader) { + super(operation, binding, httpClient, authorizationHeader); + } + + @Override + public Message invoke(Message msg) { + // TODO implement + return super.invoke(msg); + } + } + + /** + * PutMedia operation invoker + */ + public static class PutMediaInvoker extends GDataBindingInvoker { + + public PutMediaInvoker(Operation operation, GDataBinding binding, HttpClient httpClient, String authorizationHeader) { + super(operation, binding, httpClient, authorizationHeader); + } + + @Override + public Message invoke(Message msg) { + // TODO implement + return super.invoke(msg); + } + } + + public boolean allowsPassByReference() { + return true; + } +} |