/*
* ------------------------------------------------------------------------
*
* Copyright (C) 2003 - 2013
* University of Konstanz, Germany and
* KNIME GmbH, Konstanz, Germany
* Website: http://www.knime.org; Email: contact@knime.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, Version 3, as
* published by the Free Software Foundation.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses>.
*
* Additional permission under GNU GPL version 3 section 7:
*
* KNIME interoperates with ECLIPSE solely via ECLIPSE's plug-in APIs.
* Hence, KNIME and ECLIPSE are both independent programs and are not
* derived from each other. Should, however, the interpretation of the
* GNU GPL Version 3 ("License") under any applicable laws result in
* KNIME and ECLIPSE being a combined program, KNIME GMBH herewith grants
* you the additional permission to use and propagate KNIME together with
* ECLIPSE with only the license terms in place for ECLIPSE applying to
* ECLIPSE and the GNU GPL Version 3 applying for KNIME, provided the
* license terms of ECLIPSE themselves allow for the respective use and
* propagation of ECLIPSE together with KNIME.
*
* Additional permission relating to nodes for KNIME that extend the Node
* Extension (and in particular that are based on subclasses of NodeModel,
* NodeDialog, and NodeView) and that only interoperate with KNIME through
* standard APIs ("Nodes"):
* Nodes are deemed to be separate and independent programs and to not be
* covered works. Notwithstanding anything to the contrary in the
* License, the License does not apply to Nodes, you are not required to
* license Nodes under the License, and you are granted a license to
* prepare and propagate Nodes, in each case even if such Nodes are
* propagated with or for interoperation with KNIME. The owner of a Node
* may freely choose the license terms applicable to such Node, including
* when such Node is propagated with or for interoperation with KNIME.
* --------------------------------------------------------------------- *
*
*/
package org.knime.knip.io.extensionpoint;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExtensionPoint;
import org.eclipse.core.runtime.IExtensionRegistry;
import org.eclipse.core.runtime.Platform;
import org.knime.core.node.NodeLogger;
/*
* ------------------------------------------------------------------------
*
* Copyright (C) 2003 - 2011
* University of Konstanz, Germany and
* KNIME GmbH, Konstanz, Germany
* Website: http://www.knime.org; Email: contact@knime.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, Version 3, as
* published by the Free Software Foundation.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses>.
*
* Additional permission under GNU GPL version 3 section 7:
*
* KNIME interoperates with ECLIPSE solely via ECLIPSE's plug-in APIs.
* Hence, KNIME and ECLIPSE are both independent programs and are not
* derived from each other. Should, however, the interpretation of the
* GNU GPL Version 3 ("License") under any applicable laws result in
* KNIME and ECLIPSE being a combined program, KNIME GMBH herewith grants
* you the additional permission to use and propagate KNIME together with
* ECLIPSE with only the license terms in place for ECLIPSE applying to
* ECLIPSE and the GNU GPL Version 3 applying for KNIME, provided the
* license terms of ECLIPSE themselves allow for the respective use and
* propagation of ECLIPSE together with KNIME.
*
* Additional permission relating to nodes for KNIME that extend the Node
* Extension (and in particular that are based on subclasses of NodeModel,
* NodeDialog, and NodeView) and that only interoperate with KNIME through
* standard APIs ("Nodes"):
* Nodes are deemed to be separate and independent programs and to not be
* covered works. Notwithstanding anything to the contrary in the
* License, the License does not apply to Nodes, you are not required to
* license Nodes under the License, and you are granted a license to
* prepare and propagate Nodes, in each case even if such Nodes are
* propagated with or for interoperation with KNIME. The owner of a Node
* may freely choose the license terms applicable to such Node, including
* when such Node is propagated with or for interoperation with KNIME.
* ------------------------------------------------------------------------
*
* History
* Jun 21, 2012 (hornm): created
*/
import io.scif.Format;
/**
*
* @author <a href="mailto:dietzc85@googlemail.com">Christian Dietz</a>
* @author <a href="mailto:horn_martin@gmx.de">Martin Horn</a>
* @author <a href="mailto:michael.zinsmaier@googlemail.com">Michael
* Zinsmaier</a>
*/
public class ScifioFormatReaderExtPointManager {
private static final NodeLogger LOGGER = NodeLogger
.getLogger(ScifioFormatReaderExtPointManager.class);
private ScifioFormatReaderExtPointManager() {
// utility class
}
/** The id of the IFormatReaderExtPoint extension point. */
public static final String EXT_POINT_ID = "org.knime.knip.io.ScifioFormat";
/**
* The attribute of the iformatreader view extension point pointing to the
* factory class
*/
public static final String EXT_POINT_ATTR_DF = "ScifioFormat";
public static List<Format> getFormats() {
List<Format> formats = new ArrayList<Format>();
try {
final IExtensionRegistry registry = Platform.getExtensionRegistry();
final IExtensionPoint point =
registry.getExtensionPoint(EXT_POINT_ID);
if (point == null) {
LOGGER.error("Invalid extension point: " + EXT_POINT_ID);
throw new IllegalStateException("ACTIVATION ERROR: "
+ " --> Invalid extension point: " + EXT_POINT_ID);
}
for (final IConfigurationElement elem : point
.getConfigurationElements()) {
final String operator = elem.getAttribute(EXT_POINT_ATTR_DF);
final String decl =
elem.getDeclaringExtension().getUniqueIdentifier();
if (operator == null || operator.isEmpty()) {
LOGGER.error("The extension '" + decl
+ "' doesn't provide the required attribute '"
+ EXT_POINT_ATTR_DF + "'");
LOGGER.error("Extension " + decl + " ignored.");
continue;
}
try {
final Format format =
(Format)elem
.createExecutableExtension(EXT_POINT_ATTR_DF);
formats.add(format);
} catch (final Throwable t) {
LOGGER.error("Problems during initialization of "
+ "ScifioFormatExtensionPoint (with id '"
+ operator + "'.)");
if (decl != null) {
LOGGER.error("Extension " + decl + " ignored.", t);
}
}
}
} catch (final Exception e) {
LOGGER.error("Exception while registering "
+ "ScifioFormat extensions");
}
return formats;
}
}