diff options
Diffstat (limited to '')
-rw-r--r-- | sca-java-2.x/branches/2.0-Beta1/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultValidationSchemaExtensionPoint.java | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/sca-java-2.x/branches/2.0-Beta1/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultValidationSchemaExtensionPoint.java b/sca-java-2.x/branches/2.0-Beta1/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultValidationSchemaExtensionPoint.java new file mode 100644 index 0000000000..4cb83cd5ef --- /dev/null +++ b/sca-java-2.x/branches/2.0-Beta1/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultValidationSchemaExtensionPoint.java @@ -0,0 +1,123 @@ +/* + * 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.Collection; +import java.util.Collections; +import java.util.List; +import java.util.Map; + +import org.apache.tuscany.sca.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.extensibility.ServiceDeclaration; + +/** + * Default implementation of an extension point for XML schemas. + * + * @version $Rev$ $Date$ + */ +public class DefaultValidationSchemaExtensionPoint implements ValidationSchemaExtensionPoint { + private boolean enabled = true; + private List<String> schemas = new ArrayList<String>(); + private boolean loaded; + private ExtensionPointRegistry registry; + + public DefaultValidationSchemaExtensionPoint(ExtensionPointRegistry registry, Map<String, String> attributes) { + super(); + this.registry = registry; + if (attributes != null) { + String attr = attributes.get("enabled"); + if (attr != null) { + enabled = Boolean.parseBoolean(attr); + } + } + } + + 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 synchronized void loadSchemas() { + if (loaded || (!enabled)) + return; + + // Get the schema declarations + Collection<ServiceDeclaration> schemaDeclarations; + try { + schemaDeclarations = + registry.getServiceDiscovery() + .getServiceDeclarations("org.apache.tuscany.sca.contribution.processor.ValidationSchema"); + } catch (IOException e) { + throw new IllegalStateException(e); + } + + // TODO - temp fix to ensure that the schema tuscany-sca.xsd always comes first + String tuscanyScaXsd = null; + + // Find each schema + for (ServiceDeclaration schemaDeclaration : schemaDeclarations) { + URL url = schemaDeclaration.getResource(schemaDeclaration.getClassName()); + if (url == null) { + throw new IllegalArgumentException(new FileNotFoundException(schemaDeclaration.getClassName())); + } + + if (url.toString().contains("tuscany-sca-1.1.xsd")) { + tuscanyScaXsd = url.toString(); + } else { + schemas.add(url.toString()); + } + } + + if (tuscanyScaXsd != null) { + schemas.add(0, tuscanyScaXsd); + } + + loaded = true; + } + + public List<String> getSchemas() { + if (enabled) { + loadSchemas(); + return schemas; + } else { + return Collections.emptyList(); + } + } + + public boolean isEnabled() { + return enabled; + } + + public void setEnabled(boolean enabled) { + this.enabled = enabled; + } + +} |