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Diffstat (limited to 'sca-java-1.x/branches/sca-java-0.91/modules/contribution-impl/src/main/java/org/apache/tuscany/sca/contribution/service/impl/ContributionMetadataLoaderImpl.java')
| -rw-r--r-- | sca-java-1.x/branches/sca-java-0.91/modules/contribution-impl/src/main/java/org/apache/tuscany/sca/contribution/service/impl/ContributionMetadataLoaderImpl.java | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/sca-java-1.x/branches/sca-java-0.91/modules/contribution-impl/src/main/java/org/apache/tuscany/sca/contribution/service/impl/ContributionMetadataLoaderImpl.java b/sca-java-1.x/branches/sca-java-0.91/modules/contribution-impl/src/main/java/org/apache/tuscany/sca/contribution/service/impl/ContributionMetadataLoaderImpl.java new file mode 100644 index 0000000000..a089756308 --- /dev/null +++ b/sca-java-1.x/branches/sca-java-0.91/modules/contribution-impl/src/main/java/org/apache/tuscany/sca/contribution/service/impl/ContributionMetadataLoaderImpl.java @@ -0,0 +1,132 @@ +/* + * 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.service.impl; + +import static javax.xml.stream.XMLStreamConstants.START_ELEMENT; + +import javax.xml.namespace.QName; +import javax.xml.stream.XMLStreamConstants; +import javax.xml.stream.XMLStreamException; +import javax.xml.stream.XMLStreamReader; + +import org.apache.tuscany.sca.assembly.AssemblyFactory; +import org.apache.tuscany.sca.assembly.Composite; +import org.apache.tuscany.sca.contribution.Contribution; +import org.apache.tuscany.sca.contribution.ContributionExport; +import org.apache.tuscany.sca.contribution.ContributionFactory; +import org.apache.tuscany.sca.contribution.ContributionImport; +import org.apache.tuscany.sca.contribution.service.ContributionMetadataLoader; +import org.apache.tuscany.sca.contribution.service.ContributionMetadataLoaderException; + +/** + * Loader that handles contribution metadata files + * + * @version $Rev: 515261 $ $Date: 2007-03-06 11:22:46 -0800 (Tue, 06 Mar 2007) $ + */ +public class ContributionMetadataLoaderImpl implements ContributionMetadataLoader { + private static final String SCA10_NS = "http://www.osoa.org/xmlns/sca/1.0"; + private static final String TARGET_NAMESPACE = "targetNamespace"; + + private static final QName CONTRIBUTION = new QName(SCA10_NS, "contribution"); + private static final QName DEPLOYABLE = new QName(SCA10_NS, "deployable"); + private static final QName IMPORT = new QName(SCA10_NS, "import"); + private static final QName EXPORT = new QName(SCA10_NS, "export"); + + private final AssemblyFactory assemblyFactory; + private final ContributionFactory contributionFactory; + + public ContributionMetadataLoaderImpl(AssemblyFactory assemblyFactory, ContributionFactory contributionFactory) { + super(); + this.assemblyFactory = assemblyFactory; + this.contributionFactory = contributionFactory; + } + + public QName getXMLType() { + return CONTRIBUTION; + } + + public void load(Contribution contribution, XMLStreamReader reader) throws XMLStreamException, ContributionMetadataLoaderException { + String targetNameSpaceURI = null; + + while (true) { + int event = reader.next(); + switch (event) { + case START_ELEMENT: + QName element = reader.getName(); + if (CONTRIBUTION.equals(element)) { + targetNameSpaceURI = reader.getAttributeValue(null, TARGET_NAMESPACE); + } else if (DEPLOYABLE.equals(element)) { + String name = reader.getAttributeValue(null, "composite"); + if (name == null) { + throw new InvalidValueException("Attribute 'composite' is missing"); + } + QName compositeName = null; + + int index = name.indexOf(':'); + if (index != -1) { + String prefix = name.substring(0, index); + String localPart = name.substring(index + 1); + String ns = reader.getNamespaceContext().getNamespaceURI(prefix); + if (ns == null) { + throw new InvalidValueException("Invalid prefix: " + prefix); + } + compositeName = new QName(targetNameSpaceURI, localPart, prefix); + } else { + String prefix = ""; + String localPart = name; + compositeName = new QName(targetNameSpaceURI, localPart, prefix); + } + + Composite composite = assemblyFactory.createComposite(); + composite.setName(compositeName); + composite.setUnresolved(true); + + contribution.getDeployables().add(composite); + } else if (IMPORT.equals(element)) { + String ns = reader.getAttributeValue(null, "namespace"); + if (ns == null) { + throw new InvalidValueException("Attribute 'namespace' is missing"); + } + String location = reader.getAttributeValue(null, "location"); + ContributionImport contributionImport = this.contributionFactory.createContributionImport(); + if (location != null) { + contributionImport.setLocation(location); + } + contributionImport.setNamespace(ns); + contribution.getImports().add(contributionImport); + } else if (EXPORT.equals(element)) { + String ns = reader.getAttributeValue(null, "namespace"); + if (ns == null) { + throw new InvalidValueException("Attribute 'namespace' is missing"); + } + ContributionExport contributionExport = this.contributionFactory.createContributionExport(); + contributionExport.setNamespace(ns); + contribution.getExports().add(contributionExport); + } + break; + case XMLStreamConstants.END_ELEMENT: + if (CONTRIBUTION.equals(reader.getName())) { + return; + } + break; + + } + } + } +} |