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author | ramkumar <ramkumar@13f79535-47bb-0310-9956-ffa450edef68> | 2008-12-02 11:17:24 +0000 |
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committer | ramkumar <ramkumar@13f79535-47bb-0310-9956-ffa450edef68> | 2008-12-02 11:17:24 +0000 |
commit | eed639ccf7fd95e0b31caf61787126e69592f207 (patch) | |
tree | 401cafc53175c67ac1aea5398986400b416bcde3 /branches/sca-java-1.4/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/provider/DASInvoker.java | |
parent | e2af7d8b2dc498e63375fec8d97186dc261a428f (diff) |
Branch for 1.4
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@722428 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to '')
-rw-r--r-- | branches/sca-java-1.4/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/provider/DASInvoker.java | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/branches/sca-java-1.4/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/provider/DASInvoker.java b/branches/sca-java-1.4/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/provider/DASInvoker.java new file mode 100644 index 0000000000..4cd227717c --- /dev/null +++ b/branches/sca-java-1.4/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/provider/DASInvoker.java @@ -0,0 +1,87 @@ +/* + * 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.implementation.das.provider; + +import java.lang.reflect.InvocationTargetException; + +import org.apache.tuscany.sca.data.engine.DataAccessEngine; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.invocation.Invoker; +import org.apache.tuscany.sca.invocation.Message; + + +/** + * Implements a target invoker for DAS component implementations. + * + * The target invoker is responsible for dispatching invocations to the particular + * component implementation logic. The current component implementation will + * dispatch calls to the DAS APIs to retrieve the requested data from the back-end store + * + * @version $Rev$ $Date$ + */ +public class DASInvoker implements Invoker { + private final Operation operation; + private final DataAccessEngine dataAccessEngine; + + public DASInvoker(Operation operation, DataAccessEngine dataAccessEngine) { + this.operation = operation; + this.dataAccessEngine = dataAccessEngine; + } + + public Message invoke(Message msg) { + try { + Object[] args = msg.getBody(); + Object resp = doTheWork(args); + msg.setBody(resp); + } catch (InvocationTargetException e) { + msg.setFaultBody(e.getCause()); + } + return msg; + } + + public Object doTheWork(Object[] args) throws InvocationTargetException { + //check annotation +// try { +// Method methodDeclaration = this.getClass().getMethod(operation.getName(), null); +// methodDeclaration.getAnnotation(org.apache.tuscany.sca.implementation.das.annotations.Command.class); +// } catch (Exception e) { +// //ignore +// } + + //check if static way + if (operation.getName().equals("executeCommand")) { + String commandName, xPath; + + //simple execute command by name + if( args.length == 1){ + commandName = (String) args[0]; + return this.dataAccessEngine.executeCommand(commandName); + } else { + commandName = (String) args[0]; + xPath = (String) args[1]; + + return this.dataAccessEngine.executeCommand(commandName, xPath); + } + } else { // dynamic mapping to command + + return this.dataAccessEngine.executeCommand(operation.getName()); + } + } +} |