diff options
author | dims <dims@13f79535-47bb-0310-9956-ffa450edef68> | 2008-06-17 00:23:01 +0000 |
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committer | dims <dims@13f79535-47bb-0310-9956-ffa450edef68> | 2008-06-17 00:23:01 +0000 |
commit | bdd0a41aed7edf21ec2a65cfa17a86af2ef8c48a (patch) | |
tree | 38a92061c0793434c4be189f1d70c3458b6bc41d /sandbox/old/contrib/implementation-javascript/container/src/main/java/org/apache/tuscany/container/javascript/JavaScriptImplementationLoader.java |
Move Tuscany from Incubator to top level.
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@668359 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'sandbox/old/contrib/implementation-javascript/container/src/main/java/org/apache/tuscany/container/javascript/JavaScriptImplementationLoader.java')
-rw-r--r-- | sandbox/old/contrib/implementation-javascript/container/src/main/java/org/apache/tuscany/container/javascript/JavaScriptImplementationLoader.java | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/sandbox/old/contrib/implementation-javascript/container/src/main/java/org/apache/tuscany/container/javascript/JavaScriptImplementationLoader.java b/sandbox/old/contrib/implementation-javascript/container/src/main/java/org/apache/tuscany/container/javascript/JavaScriptImplementationLoader.java new file mode 100644 index 0000000000..247c01abe6 --- /dev/null +++ b/sandbox/old/contrib/implementation-javascript/container/src/main/java/org/apache/tuscany/container/javascript/JavaScriptImplementationLoader.java @@ -0,0 +1,111 @@ +/* + * 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.container.javascript; + +import java.io.IOException; +import java.io.InputStream; +import java.io.InputStreamReader; +import java.io.Reader; +import java.net.URL; +import javax.xml.namespace.QName; +import javax.xml.stream.XMLStreamException; +import javax.xml.stream.XMLStreamReader; + +import org.osoa.sca.annotations.Constructor; + +import org.apache.tuscany.spi.annotation.Autowire; +import org.apache.tuscany.spi.component.CompositeComponent; +import org.apache.tuscany.spi.deployer.DeploymentContext; +import org.apache.tuscany.spi.extension.LoaderExtension; +import org.apache.tuscany.spi.loader.LoaderException; +import org.apache.tuscany.spi.loader.LoaderRegistry; +import org.apache.tuscany.spi.loader.LoaderUtil; +import org.apache.tuscany.spi.loader.MissingResourceException; +import org.apache.tuscany.spi.model.ModelObject; + +import org.apache.tuscany.container.javascript.rhino.RhinoScript; + +/** + * Loader for handling JavaScript <js:implementation.js> elements. + */ +public class JavaScriptImplementationLoader extends LoaderExtension<JavaScriptImplementation> { + private static final QName IMPLEMENTATION_JAVASCRIPT = + new QName("http://tuscany.apache.org/xmlns/js/1.0", "implementation.js"); + + @Constructor({"registry"}) + public JavaScriptImplementationLoader(@Autowire LoaderRegistry registry) { + super(registry); + } + + public QName getXMLType() { + return IMPLEMENTATION_JAVASCRIPT; + } + + public JavaScriptImplementation load(CompositeComponent parent, ModelObject object, XMLStreamReader reader, + DeploymentContext deploymentContext) + throws XMLStreamException, LoaderException { + + String script = reader.getAttributeValue(null, "script"); + if (script == null) { + throw new MissingResourceException("No script supplied"); + } + + ClassLoader cl = deploymentContext.getClassLoader(); + String source = loadSource(cl, script); + + LoaderUtil.skipToEndElement(reader); + + JavaScriptImplementation implementation = new JavaScriptImplementation(); + RhinoScript rhinoScript = new RhinoScript(script, source, null, cl); + implementation.setRhinoScript(rhinoScript); + registry.loadComponentType(parent, implementation, deploymentContext); + return implementation; + } + + protected String loadSource(ClassLoader cl, String resource) throws LoaderException { + URL url = cl.getResource(resource); + if (url == null) { + throw new MissingResourceException(resource); + } + InputStream is; + try { + is = url.openStream(); + } catch (IOException e) { + throw new MissingResourceException(resource, resource, e); + } + try { + Reader reader = new InputStreamReader(is, "UTF-8"); + char[] buffer = new char[1024]; + StringBuilder source = new StringBuilder(); + int count; + while ((count = reader.read(buffer)) > 0) { + source.append(buffer, 0, count); + } + return source.toString(); + } catch (IOException e) { + throw new LoaderException(resource, e); + } finally { + try { + is.close(); + } catch (IOException e) { + // ignore + } + } + } +} |