diff options
Diffstat (limited to 'sca-java-1.x/tags/java-M1-final/java/sca/bindings/binding.celtix/src/main/java/org/apache/tuscany/binding/celtix/handler/ExternalWebServiceTargetInvoker.java')
-rw-r--r-- | sca-java-1.x/tags/java-M1-final/java/sca/bindings/binding.celtix/src/main/java/org/apache/tuscany/binding/celtix/handler/ExternalWebServiceTargetInvoker.java | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/java-M1-final/java/sca/bindings/binding.celtix/src/main/java/org/apache/tuscany/binding/celtix/handler/ExternalWebServiceTargetInvoker.java b/sca-java-1.x/tags/java-M1-final/java/sca/bindings/binding.celtix/src/main/java/org/apache/tuscany/binding/celtix/handler/ExternalWebServiceTargetInvoker.java new file mode 100644 index 0000000000..06786ca76d --- /dev/null +++ b/sca-java-1.x/tags/java-M1-final/java/sca/bindings/binding.celtix/src/main/java/org/apache/tuscany/binding/celtix/handler/ExternalWebServiceTargetInvoker.java @@ -0,0 +1,115 @@ +/** + * + * Copyright 2005 The Apache Software Foundation or its licensors, as applicable. + * + * 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.tuscany.binding.celtix.handler; + +import java.lang.reflect.InvocationTargetException; +import java.lang.reflect.Method; + +import org.apache.tuscany.core.context.Context; +import org.apache.tuscany.core.context.ExternalServiceContext; +import org.apache.tuscany.core.context.QualifiedName; +import org.apache.tuscany.core.context.ScopeContext; +import org.apache.tuscany.core.context.TargetException; +import org.apache.tuscany.core.message.Message; +import org.apache.tuscany.core.wire.Interceptor; +import org.apache.tuscany.core.wire.TargetInvoker; + + +/** + * Responsible for invoking an external web service + * + * @version $Rev$ $Date$ + */ +public class ExternalWebServiceTargetInvoker implements TargetInvoker { + + private QualifiedName serviceName; + private String esName; + private Method method; + private ScopeContext container; + + private ExternalServiceContext context; + + /** + * Constructs a new ExternalWebServiceTargetInvoker. + */ + public ExternalWebServiceTargetInvoker(QualifiedName servicename, + Method meth, + ScopeContext cont) { + assert servicename != null : "No service name specified"; + assert meth != null : "No method specified"; + assert cont != null : "No scope container specified"; + this.serviceName = servicename; + this.esName = serviceName.getPartName(); + this.method = meth; + this.container = cont; + } + + public Object invokeTarget(Object payload) throws InvocationTargetException { + if (context == null) { + Context iContext = container.getContext(esName); + if (!(iContext instanceof ExternalServiceContext)) { + TargetException te = new TargetException("Unexpected target context type"); + te.setIdentifier(iContext.getClass().getName()); + te.addContextName(iContext.getName()); + throw te; + } + context = (ExternalServiceContext)iContext; + } + ExternalWebServiceClient client = (ExternalWebServiceClient)context.getHandler(); + if (payload != null) { + return client.invoke(method.getName(), (Object[])payload); + } else { + return client.invoke(method.getName(), new Object[0]); + } + } + + public boolean isCacheable() { + return false; + } + + public Message invoke(Message msg) { + try { + Object resp = invokeTarget(msg.getBody()); + msg.setBody(resp); + } catch (InvocationTargetException e) { + msg.setBody(e.getCause()); + } catch (Throwable e) { + msg.setBody(e); + } + return msg; + } + + public void setNext(Interceptor next) { + throw new UnsupportedOperationException(); + } + + public Object clone() throws CloneNotSupportedException { + try { + ExternalWebServiceTargetInvoker invoker = (ExternalWebServiceTargetInvoker)super.clone(); + invoker.container = container; + invoker.context = this.context; + invoker.esName = this.esName; + invoker.method = this.method; + invoker.serviceName = this.serviceName; + return invoker; + } catch (CloneNotSupportedException e) { + // will not happen + return null; + } + } + +} |