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Diffstat (limited to '')
-rw-r--r-- | sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyImplementationLoader.java | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyImplementationLoader.java b/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyImplementationLoader.java new file mode 100644 index 0000000000..79d38f1f35 --- /dev/null +++ b/sandbox/ant/container.easy/src/main/java/org/apache/tuscany/container/easy/EasyImplementationLoader.java @@ -0,0 +1,85 @@ +/* + * 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.easy; + +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 org.apache.tuscany.spi.annotation.Autowire; +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.MissingResourceException; +import org.osoa.sca.annotations.Constructor; + +/** + * Loader for handling implementation.script elements. + * + * <implementation.script script="path/foo.py" class="myclass"> + * + */ +public abstract class EasyImplementationLoader extends LoaderExtension<EasyImplementation> { + + @Constructor( { "registry" }) + public EasyImplementationLoader(@Autowire LoaderRegistry registry) { + super(registry); + } + + public abstract QName getXMLType(); + + 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) { + MissingResourceException mre = new MissingResourceException(resource, e); + mre.setIdentifier(resource); + throw mre; + } + 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) { + LoaderException le = new LoaderException(e); + le.setIdentifier(resource); + throw le; + } finally { + try { + is.close(); + } catch (IOException e) { + // ignore + } + } + } +} |