1 files changed, 137 insertions, 0 deletions
diff --git a/bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/internal/provisional/p2/ui/model/MetadataRepositoryElement.java b/bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/internal/provisional/p2/ui/model/MetadataRepositoryElement.java
new file mode 100644
index 000000000..9c1a3422f
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+++ b/bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/internal/provisional/p2/ui/model/MetadataRepositoryElement.java
@@ -0,0 +1,137 @@
+/*******************************************************************************
+ * Copyright (c) 2007 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.internal.provisional.p2.ui.model;
+
+import java.net.URL;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.equinox.internal.p2.ui.ProvUIMessages;
+import org.eclipse.equinox.internal.p2.ui.model.RemoteQueriedElement;
+import org.eclipse.equinox.internal.provisional.p2.core.ProvisionException;
+import org.eclipse.equinox.internal.provisional.p2.core.repository.IRepository;
+import org.eclipse.equinox.internal.provisional.p2.metadata.repository.IMetadataRepository;
+import org.eclipse.equinox.internal.provisional.p2.metadata.repository.IMetadataRepositoryManager;
+import org.eclipse.equinox.internal.provisional.p2.query.IQueryable;
+import org.eclipse.equinox.internal.provisional.p2.ui.ProvUIImages;
+import org.eclipse.equinox.internal.provisional.p2.ui.operations.ProvisioningUtil;
+import org.eclipse.equinox.internal.provisional.p2.ui.query.IQueryProvider;
+import org.eclipse.osgi.util.NLS;
+
+/**
+ * Element wrapper class for a metadata repository that gets its
+ * contents in a deferred manner.
+ * 
+ * @since 3.4
+ */
+public class MetadataRepositoryElement extends RemoteQueriedElement implements RepositoryElement {
+
+	URL url;
+
+	public MetadataRepositoryElement(URL url) {
+		this.url = url;
+	}
+
+	public Object getAdapter(Class adapter) {
+		if (adapter == IMetadataRepository.class)
+			return getQueryable();
+		if (adapter == IRepository.class)
+			return getQueryable();
+		return super.getAdapter(adapter);
+	}
+
+	protected String getImageId(Object obj) {
+		return ProvUIImages.IMG_METADATA_REPOSITORY;
+	}
+
+	protected int getQueryType() {
+		return IQueryProvider.AVAILABLE_IUS;
+	}
+
+	public String getLabel(Object o) {
+		String name = getName();
+		if (name != null && name.length() > 0) {
+			return name;
+		}
+		return getLocation().toExternalForm();
+	}
+
+	/*
+	 * overridden to lazily fetch repository
+	 * (non-Javadoc)
+	 * @see org.eclipse.equinox.internal.provisional.p2.ui.query.QueriedElement#getQueryable()
+	 */
+	public IQueryable getQueryable() {
+		if (queryable == null)
+			return getMetadataRepository(null);
+		return queryable;
+	}
+
+	public IRepository getRepository(IProgressMonitor monitor) {
+		return getMetadataRepository(monitor);
+	}
+
+	private IMetadataRepository getMetadataRepository(IProgressMonitor monitor) {
+		if (queryable == null)
+			try {
+				queryable = ProvisioningUtil.loadMetadataRepository(url, monitor);
+			} catch (ProvisionException e) {
+				handleException(e, NLS.bind(ProvUIMessages.MetadataRepositoryElement_RepositoryLoadError, url));
+			}
+		return (IMetadataRepository) queryable;
+
+	}
+
+	/*
+	 * overridden to check whether url is specified rather
+	 * than loading the repo via getQueryable()
+	 * (non-Javadoc)
+	 * @see org.eclipse.equinox.internal.provisional.p2.ui.query.QueriedElement#knowsQueryable()
+	 */
+	public boolean knowsQueryable() {
+		return url != null;
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.equinox.internal.provisional.p2.ui.model.RepositoryElement#getURL()
+	 */
+	public URL getLocation() {
+		return url;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.eclipse.equinox.internal.provisional.p2.ui.model.RepositoryElement#getName()
+	 */
+	public String getName() {
+		try {
+			String name = ProvisioningUtil.getMetadataRepositoryProperty(url, IMetadataRepositoryManager.PROP_NAME);
+			if (name == null)
+				return ""; //$NON-NLS-1$
+			return name;
+		} catch (ProvisionException e) {
+			return ""; //$NON-NLS-1$
+		}
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.eclipse.equinox.internal.provisional.p2.ui.model.RepositoryElement#getDescription()
+	 */
+	public String getDescription() {
+		try {
+			String description = ProvisioningUtil.getMetadataRepositoryProperty(url, IMetadataRepositoryManager.PROP_DESCRIPTION);
+			if (description == null)
+				return ""; //$NON-NLS-1$
+			return description;
+		} catch (ProvisionException e) {
+			return ""; //$NON-NLS-1$
+		}
+	}
+}