1 files changed, 118 insertions, 0 deletions
diff --git a/bundles/org.eclipse.equinox.p2.ui.sdk/src/org/eclipse/equinox/internal/p2/ui/sdk/SimpleLicenseManager.java b/bundles/org.eclipse.equinox.p2.ui.sdk/src/org/eclipse/equinox/internal/p2/ui/sdk/SimpleLicenseManager.java
new file mode 100644
index 000000000..a30f2d0ed
--- /dev/null
+++ b/bundles/org.eclipse.equinox.p2.ui.sdk/src/org/eclipse/equinox/internal/p2/ui/sdk/SimpleLicenseManager.java
@@ -0,0 +1,118 @@
+/*******************************************************************************
+ * Copyright (c) 2007, 2008 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
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *     Genuitec, LLC - added license support
+ *******************************************************************************/
+package org.eclipse.equinox.internal.p2.ui.sdk;
+
+import java.io.*;
+import java.util.*;
+import javax.xml.parsers.*;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Status;
+import org.eclipse.equinox.p2.metadata.ILicense;
+import org.eclipse.equinox.p2.ui.LicenseManager;
+import org.eclipse.ui.statushandlers.StatusManager;
+import org.w3c.dom.*;
+import org.xml.sax.SAXException;
+
+/**
+ * SimpleLicenseManager is a license manager that keeps track of 
+ * IInstallableUnit licenses by using the digests of the IU's licenses.
+ * It can read and write its accepted list to a stream.
+ * 
+ * @since 3.4
+ */
+public class SimpleLicenseManager extends LicenseManager {
+	java.util.Set accepted = new HashSet();
+
+	public boolean accept(ILicense license) {
+		accepted.add(license.getUUID());
+		return true;
+	}
+
+	public boolean reject(ILicense license) {
+		accepted.remove(license.getUUID());
+		return true;
+	}
+
+	public boolean isAccepted(ILicense license) {
+		return accepted.contains(license.getUUID());
+	}
+
+	public boolean hasAcceptedLicenses() {
+		return !accepted.isEmpty();
+	}
+
+	public void read(InputStream stream) throws IOException {
+		try {
+			DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
+			factory.setNamespaceAware(true);
+			DocumentBuilder parser = factory.newDocumentBuilder();
+			Document doc = parser.parse(stream);
+			Node root = doc.getDocumentElement();
+			processRoot(root, accepted);
+		} catch (ParserConfigurationException e) {
+			handleException(e, ProvSDKMessages.ProvUILicenseManager_ParsingError, StatusManager.LOG);
+		} catch (SAXException e) {
+			handleException(e, ProvSDKMessages.ProvUILicenseManager_ParsingError, StatusManager.LOG);
+		}
+	}
+
+	private void handleException(Throwable t, String message, int style) {
+		if (message == null && t != null) {
+			message = t.getMessage();
+		}
+		IStatus status = new Status(IStatus.ERROR, ProvSDKUIActivator.PLUGIN_ID, 0, message, t);
+		StatusManager.getManager().handle(status, style);
+	}
+
+	public void write(OutputStream stream) throws IOException {
+		OutputStreamWriter osw = null;
+		PrintWriter writer = null;
+		try {
+			osw = new OutputStreamWriter(stream, "UTF8"); //$NON-NLS-1$
+			writer = new PrintWriter(osw);
+			writer.println("<?xml version=\"1.0\" encoding=\"UTF-8\"?>"); //$NON-NLS-1$
+			writer.println("<licenses>"); //$NON-NLS-1$
+			for (Iterator i = accepted.iterator(); i.hasNext();) {
+				String digest = (String) i.next();
+				writer.print("    " + "<license digest=\"" + digest + "\"/>"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ 
+			}
+		} finally {
+			writer.println("</licenses>"); //$NON-NLS-1$
+			writer.flush();
+			writer.close();
+			if (osw != null)
+				osw.close();
+		}
+	}
+
+	private void processRoot(Node root, Set licenses) {
+		if (root.getNodeName().equals("licenses")) { //$NON-NLS-1$
+			NodeList children = root.getChildNodes();
+			processChildren(children, licenses);
+		}
+	}
+
+	private void processChildren(NodeList children, Set licenses) {
+		for (int i = 0; i < children.getLength(); i++) {
+			Node child = children.item(i);
+			if (child.getNodeType() == Node.ELEMENT_NODE) {
+				if (child.getNodeName().equals("license")) { //$NON-NLS-1$
+					NamedNodeMap atts = child.getAttributes();
+					Node digestAtt = atts.getNamedItem("digest"); //$NON-NLS-1$
+					if (digestAtt != null) {
+						licenses.add(digestAtt.getNodeValue());
+					}
+				}
+			}
+		}
+	}
+}