Author: jsdelfino
Date: Tue Feb 26 07:57:32 2008
New Revision: 631266
URL: http://svn.apache.org/viewvc?rev=631266&view=rev
Log:
Adding an interface for scanners used to scan contributions and find artifacts
in them.
Added:
incubator/tuscany/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionScanner.java
(with props)
incubator/tuscany/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionScannerExtensionPoint.java
(with props)
incubator/tuscany/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultContributionScannerExtensionPoint.java
(with props)
incubator/tuscany/java/sca/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.ContributionScannerExtensionPoint
Added:
incubator/tuscany/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionScanner.java
URL:
http://svn.apache.org/viewvc/incubator/tuscany/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionScanner.java?rev=631266&view=auto
==============================================================================
---
incubator/tuscany/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionScanner.java
(added)
+++
incubator/tuscany/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionScanner.java
Tue Feb 26 07:57:32 2008
@@ -0,0 +1,67 @@
+/*
+ * 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.IOException;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.List;
+
+import org.apache.tuscany.sca.contribution.service.ContributionException;
+
+/**
+ * Interface for contribution package scanners
+ *
+ * Contribution scanners understand the format of the contribution and how to
get the
+ * artifacts in the contribution.
+ *
+ * @version $Rev$ $Date$
+ */
+public interface ContributionScanner {
+
+ /**
+ * Returns the type of package supported by this package scanner.
+ *
+ * @return the package type
+ */
+ String getContributionType();
+
+ /**
+ * Returns a list of artifacts in the contribution.
+ *
+ * @param contributionURL Contribution URL
+ * @return List of artifact URIs
+ * @throws ContributionException
+ * @throws IOException
+ */
+ List<String> getArtifacts(URL contributionURL) throws
ContributionException, IOException;
+
+ /**
+ * Return the URL for an artifact in the contribution.
+ *
+ * This is needed for archives such as jar files that have specific URL
schemes
+ * for the artifacts they contain.
+ *
+ * @param contributionURL Contribution URL
+ * @param artifact The relative URI for the artifact
+ * @return The artifact URL
+ */
+ URL getArtifactURL(URL packageSourceURL, String artifact) throws
MalformedURLException;
+
+}
Propchange:
incubator/tuscany/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionScanner.java
------------------------------------------------------------------------------
svn:eol-style = native
Propchange:
incubator/tuscany/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionScanner.java
------------------------------------------------------------------------------
svn:keywords = Rev Date
Added:
incubator/tuscany/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionScannerExtensionPoint.java
URL:
http://svn.apache.org/viewvc/incubator/tuscany/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionScannerExtensionPoint.java?rev=631266&view=auto
==============================================================================
---
incubator/tuscany/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionScannerExtensionPoint.java
(added)
+++
incubator/tuscany/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionScannerExtensionPoint.java
Tue Feb 26 07:57:32 2008
@@ -0,0 +1,50 @@
+/*
+ * 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;
+
+/**
+ * An extension point for contribution scanners
+ *
+ * @version $Rev$ $Date$
+ */
+public interface ContributionScannerExtensionPoint {
+
+ /**
+ * Add a ContributionScanner using the contribution type as the key.
+ *
+ * @param scanner The contribution scanner
+ */
+ void addContributionScanner(ContributionScanner scanner);
+
+ /**
+ * Remove a ContributionScanner.
+ *
+ * @param scanner The contribution scanner
+ */
+ void removeContributionScanner(ContributionScanner scanner);
+
+ /**
+ * Returns the ContributionScanner for the given contribution type.
+ *
+ * @param contributionType The contribution type
+ * @return The contribution scanner
+ */
+ ContributionScanner getContributionScanner(String contributionType);
+
+}
\ No newline at end of file
Propchange:
incubator/tuscany/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionScannerExtensionPoint.java
------------------------------------------------------------------------------
svn:eol-style = native
Propchange:
incubator/tuscany/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ContributionScannerExtensionPoint.java
------------------------------------------------------------------------------
svn:keywords = Rev Date
Added:
incubator/tuscany/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultContributionScannerExtensionPoint.java
URL:
http://svn.apache.org/viewvc/incubator/tuscany/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultContributionScannerExtensionPoint.java?rev=631266&view=auto
==============================================================================
---
incubator/tuscany/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultContributionScannerExtensionPoint.java
(added)
+++
incubator/tuscany/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultContributionScannerExtensionPoint.java
Tue Feb 26 07:57:32 2008
@@ -0,0 +1,126 @@
+/*
+ * 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.IOException;
+import java.lang.reflect.Constructor;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import org.apache.tuscany.sca.contribution.service.ContributionException;
+import org.apache.tuscany.sca.contribution.util.ServiceDeclaration;
+import org.apache.tuscany.sca.contribution.util.ServiceDiscovery;
+
+/**
+ * Default implementation of a contribution scanner extension point.
+ *
+ * @version $Rev$ $Date$
+ */
+public class DefaultContributionScannerExtensionPoint implements
ContributionScannerExtensionPoint {
+
+ private Map<String, ContributionScanner> scanners = new HashMap<String,
ContributionScanner>();
+ private boolean loaded;
+
+ public DefaultContributionScannerExtensionPoint() {
+ }
+
+ public void addContributionScanner(ContributionScanner scanner) {
+ scanners.put(scanner.getContributionType(), scanner);
+ }
+
+ public void removeContributionScanner(ContributionScanner scanner) {
+ scanners.remove(scanner.getContributionType());
+ }
+
+ public ContributionScanner getContributionScanner(String contentType) {
+ loadScanners();
+ return scanners.get(contentType);
+ }
+
+ private void loadScanners() {
+ if (loaded)
+ return;
+
+ // Get the scanner service declarations
+ Set<ServiceDeclaration> scannerDeclarations;
+ try {
+ scannerDeclarations =
ServiceDiscovery.getInstance().getServiceDeclarations(ContributionScanner.class);
+ } catch (IOException e) {
+ throw new IllegalStateException(e);
+ }
+
+ for (ServiceDeclaration scannerDeclaration: scannerDeclarations) {
+ Map<String, String> attributes =
scannerDeclaration.getAttributes();
+
+ // Load a URL artifact scanner
+ String contributionType = attributes.get("type");
+
+ // Create a scanner wrapper and register it
+ ContributionScanner scanner = new
LazyContributionScanner(contributionType, scannerDeclaration);
+ addContributionScanner(scanner);
+ }
+
+ loaded = true;
+ }
+
+ /**
+ * A facade for contribution scanners.
+ */
+ private static class LazyContributionScanner implements
ContributionScanner {
+
+ private ServiceDeclaration scannerDeclaration;
+ private String contributionType;
+ private ContributionScanner scanner;
+
+ private LazyContributionScanner(String contributionType,
ServiceDeclaration scannerDeclaration) {
+ this.scannerDeclaration = scannerDeclaration;
+ this.contributionType = contributionType;
+ }
+
+ public URL getArtifactURL(URL contributionSourceURL, String artifact)
throws MalformedURLException {
+ return getScanner().getArtifactURL(contributionSourceURL,
artifact);
+ }
+
+ public List<String> getArtifacts(URL contributionSourceURL) throws
ContributionException, IOException {
+ return getScanner().getArtifacts(contributionSourceURL);
+ }
+
+ public String getContributionType() {
+ return contributionType;
+ }
+
+ private ContributionScanner getScanner() {
+ if (scanner == null) {
+ try {
+ Class<ContributionScanner> scannerClass =
(Class<ContributionScanner>)scannerDeclaration.loadClass();
+ Constructor<ContributionScanner> constructor =
scannerClass.getConstructor();
+ scanner = constructor.newInstance();
+ } catch (Exception e) {
+ throw new IllegalStateException(e);
+ }
+ }
+ return scanner;
+ }
+ }
+}
Propchange:
incubator/tuscany/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultContributionScannerExtensionPoint.java
------------------------------------------------------------------------------
svn:eol-style = native
Propchange:
incubator/tuscany/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultContributionScannerExtensionPoint.java
------------------------------------------------------------------------------
svn:keywords = Rev Date
Added:
incubator/tuscany/java/sca/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.ContributionScannerExtensionPoint
URL:
http://svn.apache.org/viewvc/incubator/tuscany/java/sca/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.ContributionScannerExtensionPoint?rev=631266&view=auto
==============================================================================
---
incubator/tuscany/java/sca/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.ContributionScannerExtensionPoint
(added)
+++
incubator/tuscany/java/sca/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.ContributionScannerExtensionPoint
Tue Feb 26 07:57:32 2008
@@ -0,0 +1,18 @@
+# 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.
+
+org.apache.tuscany.sca.contribution.processor.DefaultContributionScannerExtensionPoint
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