3:34 a.m.
Author: thomas.diesler(a)jboss.com
Date: 2010-03-09 04:34:17 -0500 (Tue, 09 Mar 2010)
New Revision: 102117
Added:
projects/jboss-osgi/projects/vfs/trunk/api/src/main/java/org/jboss/osgi/vfs/ManifestBuilder.java
Log:
wip
Added:
projects/jboss-osgi/projects/vfs/trunk/api/src/main/java/org/jboss/osgi/vfs/ManifestBuilder.java
===================================================================
---
projects/jboss-osgi/projects/vfs/trunk/api/src/main/java/org/jboss/osgi/vfs/ManifestBuilder.java
(rev 0)
+++
projects/jboss-osgi/projects/vfs/trunk/api/src/main/java/org/jboss/osgi/vfs/ManifestBuilder.java 2010-03-09
09:34:17 UTC (rev 102117)
@@ -0,0 +1,138 @@
+/*
+* JBoss, Home of Professional Open Source
+* Copyright 2006, JBoss Inc., and individual contributors as indicated
+* by the @authors tag. See the copyright.txt in the distribution for a
+* full listing of individual contributors.
+*
+* This is free software; you can redistribute it and/or modify it
+* under the terms of the GNU Lesser General Public License as
+* published by the Free Software Foundation; either version 2.1 of
+* the License, or (at your option) any later version.
+*
+* This software is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+* Lesser General Public License for more details.
+*
+* You should have received a copy of the GNU Lesser General Public
+* License along with this software; if not, write to the Free
+* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
+*/
+package org.jboss.osgi.vfs;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.jar.Attributes;
+import java.util.jar.Manifest;
+
+import org.osgi.framework.Constants;
+
+/**
+ * A simple OSGi manifest builder.
+ *
+ * @author thomas.diesler(a)jboss.com
+ * @since 08-Mar-2010
+ */
+public final class ManifestBuilder
+{
+ private StringWriter sw;
+ private PrintWriter pw;
+ private List<String> importPackages = new ArrayList<String>();
+ private List<String> exportPackages = new ArrayList<String>();
+
+ public static ManifestBuilder newInstance()
+ {
+ return new ManifestBuilder();
+ }
+
+ private ManifestBuilder()
+ {
+ sw = new StringWriter();
+ pw = new PrintWriter(sw);
+ pw.println(Attributes.Name.MANIFEST_VERSION + ": 1.0");
+ }
+
+ public ManifestBuilder addBundleManifestVersion(int version)
+ {
+ pw.println(Constants.BUNDLE_MANIFESTVERSION + ": " + version);
+ return this;
+ }
+
+ public ManifestBuilder addBundleSymbolicName(String symbolicName)
+ {
+ pw.println(Constants.BUNDLE_SYMBOLICNAME + ": " + symbolicName);
+ return this;
+ }
+
+ public ManifestBuilder addBundleActivator(String bundleActivator)
+ {
+ pw.println(Constants.BUNDLE_ACTIVATOR + ": " + bundleActivator);
+ return this;
+ }
+
+ public ManifestBuilder addImportPackages(String... packages)
+ {
+ for (String aux : packages)
+ importPackages.add(aux);
+
+ return this;
+ }
+
+ public ManifestBuilder addExportPackages(String... packages)
+ {
+ for (String aux : packages)
+ exportPackages.add(aux);
+
+ return this;
+ }
+
+ public ManifestBuilder addManifestHeader(String key, String value)
+ {
+ pw.println(key + ": " + value);
+ return this;
+ }
+
+ public Manifest getManifest()
+ {
+ if (exportPackages.size() > 0)
+ {
+ pw.print(Constants.EXPORT_PACKAGE + ": ");
+ for (int i = 0; i < exportPackages.size(); i++)
+ {
+ if (i > 0)
+ pw.print(",");
+
+ pw.print(exportPackages.get(i));
+ }
+ pw.println();
+ }
+
+ if (importPackages.size() > 0)
+ {
+ pw.print(Constants.IMPORT_PACKAGE + ": ");
+ for (int i = 0; i < importPackages.size(); i++)
+ {
+ if (i > 0)
+ pw.print(",");
+
+ pw.print(importPackages.get(i));
+ }
+ pw.println();
+ }
+
+ try
+ {
+ Manifest manifest = new Manifest(new
ByteArrayInputStream(sw.toString().getBytes()));
+ return manifest;
+ }
+ catch (IOException ex)
+ {
+ throw new IllegalStateException("Cannot create manifest", ex);
+ }
+ }
+}