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Diffstat (limited to 'sca-java-1.x/branches/sca-java-1.2.1/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultValidationSchemaExtensionPoint.java')
-rw-r--r-- | sca-java-1.x/branches/sca-java-1.2.1/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultValidationSchemaExtensionPoint.java | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultValidationSchemaExtensionPoint.java b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultValidationSchemaExtensionPoint.java new file mode 100644 index 0000000000..e1e3a7283d --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultValidationSchemaExtensionPoint.java @@ -0,0 +1,83 @@ +/* + * 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.contribution.processor; + +import java.io.FileNotFoundException; +import java.io.IOException; +import java.net.URL; +import java.util.ArrayList; +import java.util.List; +import java.util.Set; + +import org.apache.tuscany.sca.extensibility.ServiceDeclaration; +import org.apache.tuscany.sca.extensibility.ServiceDiscovery; + +/** + * Default implementation of an extension point for XML schemas. + * + * @version $Rev$ $Date$ + */ +public class DefaultValidationSchemaExtensionPoint implements ValidationSchemaExtensionPoint { + + private List<String> schemas = new ArrayList<String>(); + private boolean loaded; + + public void addSchema(String uri) { + schemas.add(uri); + } + + public void removeSchema(String uri) { + schemas.remove(uri); + } + + /** + * Load schema declarations from META-INF/services/ + * org.apache.tuscany.sca.contribution.processor.ValidationSchema files + */ + private void loadSchemas() { + if (loaded) + return; + + // Get the schema declarations + Set<ServiceDeclaration> schemaDeclarations; + try { + schemaDeclarations = ServiceDiscovery.getInstance().getServiceDeclarations("org.apache.tuscany.sca.contribution.processor.ValidationSchema"); + } catch (IOException e) { + throw new IllegalStateException(e); + } + + // Find each schema + for (ServiceDeclaration schemaDeclaration: schemaDeclarations) { + URL url = schemaDeclaration.getResource(); + if (url == null) { + throw new IllegalArgumentException(new FileNotFoundException(schemaDeclaration.getClassName())); + } + schemas.add(url.toString()); + } + + loaded = true; + } + + public List<String> getSchemas() { + loadSchemas(); + return schemas; + } + +} |