From e5b7380c874745c989d1816b8f552504f038e1bc Mon Sep 17 00:00:00 2001 From: lresende Date: Thu, 26 Sep 2013 20:33:20 +0000 Subject: 2.0 branch for possible maintenance release git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1526672 13f79535-47bb-0310-9956-ffa450edef68 --- .../provider/PythonImplementationProvider.java | 106 +++++++++++++++++++++ 1 file changed, 106 insertions(+) create mode 100644 sca-java-2.x/branches/2.0/modules/implementation-python-runtime/src/main/java/org/apache/tuscany/sca/implementation/python/provider/PythonImplementationProvider.java (limited to 'sca-java-2.x/branches/2.0/modules/implementation-python-runtime/src/main/java/org/apache/tuscany/sca/implementation/python/provider/PythonImplementationProvider.java') diff --git a/sca-java-2.x/branches/2.0/modules/implementation-python-runtime/src/main/java/org/apache/tuscany/sca/implementation/python/provider/PythonImplementationProvider.java b/sca-java-2.x/branches/2.0/modules/implementation-python-runtime/src/main/java/org/apache/tuscany/sca/implementation/python/provider/PythonImplementationProvider.java new file mode 100644 index 0000000000..7d381ac9d9 --- /dev/null +++ b/sca-java-2.x/branches/2.0/modules/implementation-python-runtime/src/main/java/org/apache/tuscany/sca/implementation/python/provider/PythonImplementationProvider.java @@ -0,0 +1,106 @@ +/* + * 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.python.provider; + +import java.util.ArrayList; +import java.util.List; + +import org.apache.tuscany.sca.assembly.ComponentProperty; +import org.apache.tuscany.sca.assembly.ComponentReference; +import org.apache.tuscany.sca.core.invocation.ProxyFactory; +import org.apache.tuscany.sca.implementation.python.PythonEval; +import org.apache.tuscany.sca.implementation.python.PythonImplementation; +import org.apache.tuscany.sca.implementation.python.PythonProperty; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.invocation.Invoker; +import org.apache.tuscany.sca.provider.ImplementationProvider; +import org.apache.tuscany.sca.runtime.RuntimeComponent; +import org.apache.tuscany.sca.runtime.RuntimeComponentService; +import org.apache.tuscany.sca.runtime.RuntimeEndpointReference; +import org.python.core.Py; +import org.python.core.PyObject; +import org.python.core.PyString; +import org.python.core.PySystemState; +import org.python.core.PyTuple; +import org.python.util.PythonInterpreter; + +/** + * Implementation provider for Python component implementations. + * + * @version $Rev$ $Date$ + */ +class PythonImplementationProvider implements ImplementationProvider { + final RuntimeComponent component; + final PythonImplementation implementation; + PythonInterpreter python; + PyObject callable; + ProxyFactory pxFactory; + + PythonImplementationProvider(final RuntimeComponent comp, final PythonImplementation impl, ProxyFactory pxf) { + component = comp; + implementation = impl; + pxFactory = pxf; + } + + public void start() { + final PySystemState pss = new PySystemState(); + pss.path.insert(0, new PyString(implementation.getLocation())); + pss.path.insert(0, new PyString(getClass().getProtectionDomain().getCodeSource().getLocation().getFile())); + python = new PythonInterpreter(null, pss); + python.exec("from invoker import *"); + + final List px = new ArrayList(); + for(final ComponentReference r: component.getReferences()) { + final PythonEval pe = pxFactory.createProxy(PythonEval.class, (RuntimeEndpointReference)r.getEndpointReferences().get(0)); + px.add(Py.java2py(new PythonEval() { + @Override + public String eval(final String args) throws Exception { + final String v = pe.eval(args); + return v; + } + })); + } + final List pr = new ArrayList(); + for(final ComponentProperty p: component.getProperties()) { + final String v = String.valueOf(p.getValue()); + pr.add(Py.java2py(new PythonProperty() { + @Override + public String eval() { + return v; + } + })); + } + + PyObject mkc = python.get("mkcomponent"); + callable = mkc.__call__(new PyString(component.getName()), new PyString(implementation.getScript()), new PyTuple(px.toArray(new PyObject[0])), new PyTuple(pr.toArray(new PyObject[0]))); + } + + public void stop() { + python.cleanup(); + } + + public boolean supportsOneWayInvocation() { + return false; + } + + public Invoker createInvoker(final RuntimeComponentService s, final Operation op) { + return new PythonInvoker(python, callable, op); + } +} -- cgit v1.2.3