388566 Publish osgi.ee capabilities of a.jre IUs

- Read org.osgi.framework.system.capabilities from profile files and
  publish osgi.ee generic capabilities as capabilities of the "a.jre"
  IUs in the p2 namespace "osgi.ee"

Bug: 388566 JREAction: Publish osgi.ee capabilities in 'a.jre' IUs

3 files changed, 110 insertions, 5 deletions

diff --git a/bundles/org.eclipse.equinox.p2.publisher/src/org/eclipse/equinox/internal/p2/publisher/Messages.java b/bundles/org.eclipse.equinox.p2.publisher/src/org/eclipse/equinox/internal/p2/publisher/Messages.java
index 45342b967..9a938b8cc 100644
--- a/bundles/org.eclipse.equinox.p2.publisher/src/org/eclipse/equinox/internal/p2/publisher/Messages.java
+++ b/bundles/org.eclipse.equinox.p2.publisher/src/org/eclipse/equinox/internal/p2/publisher/Messages.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2007, 2011 IBM Corporation and others. All rights reserved. This
+ * Copyright (c) 2007, 2012 IBM Corporation and others. All rights reserved. This
  * program and the accompanying materials are made available under the terms of
  * the Eclipse Public License v1.0 which accompanies this distribution, and is
  * available at http://www.eclipse.org/legal/epl-v10.html
@@ -37,9 +37,17 @@ public class Messages extends NLS {
 	public static String message_resultException;
 	public static String message_publisherArguments;
 
+	public static String message_problemsWhilePublishingEE;
+	public static String message_problemsWhileParsingProfileProperty;
+	public static String message_eeIgnoringNamespace;
+	public static String message_eeInvalidVersionAttribute;
+	public static String message_eeMissingNameAttribute;
+	public static String message_eeMissingVersionAttribute;
+
 	public static String exception_artifactRepoNoAppendDestroysInput;
 
 	public static String error_rootIU_generation;
+
 	static {
 		// load message values from bundle file
 		NLS.initializeMessages(BUNDLE_NAME, Messages.class);
diff --git a/bundles/org.eclipse.equinox.p2.publisher/src/org/eclipse/equinox/internal/p2/publisher/messages.properties b/bundles/org.eclipse.equinox.p2.publisher/src/org/eclipse/equinox/internal/p2/publisher/messages.properties
index 2cc00ea2d..dd655204b 100644
--- a/bundles/org.eclipse.equinox.p2.publisher/src/org/eclipse/equinox/internal/p2/publisher/messages.properties
+++ b/bundles/org.eclipse.equinox.p2.publisher/src/org/eclipse/equinox/internal/p2/publisher/messages.properties
@@ -1,5 +1,5 @@
 ###############################################################################
-# Copyright (c) 2007, 2011 IBM Corporation and others.
+# Copyright (c) 2007, 2012 IBM Corporation and others.
 # All rights reserved. This program and the accompanying materials
 # are made available under the terms of the Eclipse Public License v1.0
 # which accompanies this distribution, and is available at
@@ -23,11 +23,17 @@ exception_invalidSiteReferenceInFeature=Invalid site reference {0} in feature {1
 exception_repoMustBeURL=Repository location ({0}) must be a URL.
 exception_sourcePath=Source location ({0}) must be a valid file-system path.
 exception_nonExistingJreLocationFile=Provided location to JRE \"{0}\" does not exist on the file system.
+message_eeIgnoringNamespace=Ignoring unknown capability namespace ''{0}''
+message_eeInvalidVersionAttribute=Syntax error in version ''{0}''
+message_eeMissingNameAttribute=Attribute ''osgi.ee'' is missing for entry {0}
+message_eeMissingVersionAttribute=Attribute ''version:List<Version>'' is missing for execution environment ''{0}''
 message_generatingMetadata = Generating metadata for {0}.
 message_generationCompleted = Generation completed with success [{0} seconds].
 message_noSimpleconfigurator = Could not find simpleconfigurator bundle.
 message_resultException=Product publishing ended with the following exception:
 message_publisherArguments=Product publisher application was executed with the following arguments:
+message_problemsWhileParsingProfileProperty=Problems while parsing profile property {0}
+message_problemsWhilePublishingEE=Problems while publishing execution environment {0}
 exception_artifactRepoNoAppendDestroysInput = Not appending to artifact repository ({0}) may destroy input files.
 error_rootIU_generation = Could not generate root IU {0}, {1}, {2}..
-exception_errorLoadingProductFile = An error has occurred while loading product file {0}. Exception details: {1}.
\ No newline at end of file
+exception_errorLoadingProductFile = An error has occurred while loading product file {0}. Exception details: {1}.
diff --git a/bundles/org.eclipse.equinox.p2.publisher/src/org/eclipse/equinox/p2/publisher/actions/JREAction.java b/bundles/org.eclipse.equinox.p2.publisher/src/org/eclipse/equinox/p2/publisher/actions/JREAction.java
index dae3d059a..ae10c179e 100644
--- a/bundles/org.eclipse.equinox.p2.publisher/src/org/eclipse/equinox/p2/publisher/actions/JREAction.java
+++ b/bundles/org.eclipse.equinox.p2.publisher/src/org/eclipse/equinox/p2/publisher/actions/JREAction.java
@@ -28,6 +28,7 @@ import org.eclipse.equinox.spi.p2.publisher.PublisherHelper;
 import org.eclipse.osgi.util.ManifestElement;
 import org.eclipse.osgi.util.NLS;
 import org.osgi.framework.BundleException;
+import org.osgi.framework.Constants;
 
 public class JREAction extends AbstractPublisherAction {
 	private static final String DEFAULT_JRE_NAME = "a.jre"; //$NON-NLS-1$
@@ -38,25 +39,41 @@ public class JREAction extends AbstractPublisherAction {
 	private static final String PROFILE_TARGET_VERSION = "org.eclipse.jdt.core.compiler.codegen.targetPlatform"; //$NON-NLS-1$
 	private static final String PROFILE_SYSTEM_PACKAGES = "org.osgi.framework.system.packages"; //$NON-NLS-1$
 
+	public static final String NAMESPACE_OSGI_EE = "osgi.ee"; //$NON-NLS-1$
+
 	private File jreLocation;
 	private String environment;
 	private Map<String, String> profileProperties;
+	private MultiStatus resultStatus;
 
 	public JREAction(File location) {
 		this.jreLocation = location;
 	}
 
 	public JREAction(String environment) {
-
 		this.environment = environment;
 	}
 
 	public IStatus perform(IPublisherInfo publisherInfo, IPublisherResult results, IProgressMonitor monitor) {
+		String problemMessage = NLS.bind(Messages.message_problemsWhilePublishingEE, jreLocation != null ? jreLocation : environment);
+		resultStatus = new MultiStatus(Activator.ID, 0, problemMessage, null);
+
 		initialize(publisherInfo);
 		IArtifactDescriptor artifact = createJREData(results);
 		if (artifact != null)
 			publishArtifact(artifact, new File[] {jreLocation}, null, publisherInfo, createRootPrefixComputer(jreLocation));
-		return Status.OK_STATUS;
+
+		if (resultStatus.isOK())
+			return Status.OK_STATUS;
+		return resultStatus;
+	}
+
+	private static Status newErrorStatus(String message, Exception exception) {
+		return new Status(IStatus.ERROR, Activator.ID, message, exception);
+	}
+
+	private static Status newWarningStatus(String message) {
+		return new Status(IStatus.WARNING, Activator.ID, message, null);
 	}
 
 	/**
@@ -116,6 +133,7 @@ public class JREAction extends AbstractPublisherAction {
 		List<IProvidedCapability> result = new ArrayList<IProvidedCapability>();
 		result.add(PublisherHelper.createSelfCapability(id, version));
 		generateProvidedPackages(result);
+		generateOsgiEESystemCapabilities(result);
 		return result;
 	}
 
@@ -137,6 +155,79 @@ public class JREAction extends AbstractPublisherAction {
 		}
 	}
 
+	void generateOsgiEESystemCapabilities(List<IProvidedCapability> result) {
+		String message = NLS.bind(Messages.message_problemsWhileParsingProfileProperty, Constants.FRAMEWORK_SYSTEMCAPABILITIES);
+		MultiStatus parsingStatus = new MultiStatus(Activator.ID, 0, message, null);
+
+		String systemCapabilities = profileProperties.get(Constants.FRAMEWORK_SYSTEMCAPABILITIES);
+		parseSystemCapabilities(systemCapabilities, parsingStatus, result);
+
+		// result contains the valid entries, parsingStatus the invalid entries
+		if (!parsingStatus.isOK())
+			resultStatus.add(parsingStatus);
+	}
+
+	static void parseSystemCapabilities(String systemCapabilities, MultiStatus parsingStatus, List<IProvidedCapability> parsingResult) {
+		if (systemCapabilities == null || (systemCapabilities.trim().length() == 0)) {
+			return;
+		}
+
+		try {
+			ManifestElement[] eeEntries = ManifestElement.parseHeader(Constants.FRAMEWORK_SYSTEMCAPABILITIES, systemCapabilities);
+			parseSystemCapabilities(eeEntries, parsingStatus, parsingResult);
+
+		} catch (BundleException e) {
+			parsingStatus.add(newErrorStatus(e.getLocalizedMessage(), e));
+		}
+	}
+
+	private static void parseSystemCapabilities(ManifestElement[] systemCapabilities, MultiStatus parsingStatus, List<IProvidedCapability> parsingResult) {
+		for (int capabilityIx = 0; capabilityIx < systemCapabilities.length; capabilityIx++) {
+			ManifestElement systemCapability = systemCapabilities[capabilityIx];
+
+			// this is general manifest syntax: a "manifest element" can have multiple "value components" -> all attributes apply to each value component (=namespace)
+			String[] namespaces = systemCapability.getValueComponents();
+			for (int namespaceIx = 0; namespaceIx < namespaces.length; namespaceIx++) {
+				String namespace = namespaces[namespaceIx];
+
+				if ("osgi.ee".equals(namespace)) { // this is the OSGi capability namespace "osgi.ee"  //$NON-NLS-1$
+					parseEECapability(systemCapability, parsingStatus, parsingResult);
+
+				} else {
+					parsingStatus.add(newWarningStatus(NLS.bind(Messages.message_eeIgnoringNamespace, namespace)));
+					continue;
+				}
+			}
+		}
+	}
+
+	private static void parseEECapability(ManifestElement eeCapability, MultiStatus parsingStatus, List<IProvidedCapability> parsingResult) {
+		String eeName = eeCapability.getAttribute("osgi.ee"); // this is an attribute required for capabilities in the "osgi.ee" namespace //$NON-NLS-1$
+		if (eeName == null) {
+			parsingStatus.add(newErrorStatus(NLS.bind(Messages.message_eeMissingNameAttribute, eeCapability), null));
+			return;
+		}
+
+		String[] eeVersions = ManifestElement.getArrayFromList(eeCapability.getAttribute("version:List<Version>")); //$NON-NLS-1$
+		if (eeVersions == null) {
+			parsingStatus.add(newErrorStatus(NLS.bind(Messages.message_eeMissingVersionAttribute, eeName), null));
+			return;
+		}
+
+		for (int versionIx = 0; versionIx < eeVersions.length; versionIx++) {
+			String rawVersion = eeVersions[versionIx];
+			try {
+				Version parsedVersion = Version.parseVersion(rawVersion);
+
+				// complete record -> store
+				parsingResult.add(MetadataFactory.createProvidedCapability(NAMESPACE_OSGI_EE, eeName, parsedVersion));
+
+			} catch (IllegalArgumentException e) {
+				parsingStatus.add(newErrorStatus(NLS.bind(Messages.message_eeInvalidVersionAttribute, rawVersion), e));
+			}
+		}
+	}
+
 	private void generateJREIUData(InstallableUnitDescription iu) {
 		if (profileProperties == null || profileProperties.size() == 0)
 			return; //got nothing