1 files changed, 85 insertions, 0 deletions
diff --git a/bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/p2/ui/LicenseManager.java b/bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/p2/ui/LicenseManager.java
new file mode 100644
index 000000000..61caae491
--- /dev/null
+++ b/bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/p2/ui/LicenseManager.java
@@ -0,0 +1,85 @@
+/*******************************************************************************
+ * Copyright (c) 2007, 2009 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
+ *******************************************************************************/
+package org.eclipse.equinox.p2.ui;
+
+import org.eclipse.equinox.p2.metadata.ILicense;
+
+import java.io.*;
+
+/**
+ * LicenseManager defines a service which records the licenses that have been
+ * accepted in the course of installing or updating software. It can be used to determine
+ * whether a particular license should be presented to a user for acceptance, and
+ * to record the user's decision.
+ * 
+ * @since 2.0
+ */
+public abstract class LicenseManager {
+
+	/**
+	 * Record the acceptance of the specified license.
+	 * 
+	 * @param license the license to be accepted
+	 * 
+	 * @return <code>true</code> if the license was recorded as accepted, <code>false</code> if
+	 * it was not.
+	 * 
+	 */
+	public abstract boolean accept(ILicense license);
+
+	/**
+	 * Record the rejection of the specified license.
+	 * 
+	 * @param license the license to be rejected
+	 * 
+	 * @return <code>true</code> if the license was recorded as rejected, <code>false</code> if
+	 * it was not.
+	 * 
+	 */
+	public abstract boolean reject(ILicense license);
+
+	/**
+	 * Return a boolean indicating whether a particular license has previously
+	 * been accepted.
+	 * 
+	 * @param license the license in question
+	 * 
+	 * @return <code>true</code> if the license has previously been accepted,
+	 * <code>false</code> if it has not been accepted before.
+	 * 
+	 */
+	public abstract boolean isAccepted(ILicense license);
+
+	/**
+	 * Return a boolean indicating whether any licenses have been
+	 * accepted.
+	 * 
+	 * @return <code>true</code> if accepted licenses have been recorded,
+	 * <code>false</code> if there have been no licenses accepted.
+
+	 */
+	public abstract boolean hasAcceptedLicenses();
+
+	/**
+	 * Write the accepted licenses list to the specified stream.
+	 * @param stream the stream to which licenses should be written
+	 * @throws IOException 
+	 */
+	public abstract void write(OutputStream stream) throws IOException;
+
+	/**
+	 * Read the accepted licenses list from the specified stream.
+	 * @param stream the stream from which to read the licenses
+	 * @throws IOException 
+	 */
+	public abstract void read(InputStream stream) throws IOException;
+
+}