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/*******************************************************************************
* Copyright (c) 2011 Wind River Systems, Inc. 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:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.tm.te.ui.views.extensions;
import org.eclipse.core.expressions.Expression;
import org.eclipse.core.expressions.ExpressionConverter;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.tm.te.runtime.extensions.ExecutableExtension;
/**
* Details editor page binding implementation.
*/
public class EditorPageBinding extends ExecutableExtension {
// The mandatory page identifier
private String pageId;
// The insertBefore element
private String insertBefore;
// The insertAfter element
private String insertAfter;
// The converted expression
private Expression expression;
/* (non-Javadoc)
* @see org.eclipse.tm.te.runtime.extensions.ExecutableExtension#doSetInitializationData(org.eclipse.core.runtime.IConfigurationElement, java.lang.String, java.lang.Object)
*/
@Override
public void doSetInitializationData(IConfigurationElement config, String propertyName, Object data) throws CoreException {
super.doSetInitializationData(config, propertyName, data);
// Initialize the page id field by reading the <pageId> extension attribute.
// Throws an exception if the id is empty or null.
pageId = config != null ? config.getAttribute("pageId") : null; //$NON-NLS-1$
if (pageId == null || (pageId != null && "".equals(pageId.trim()))) { //$NON-NLS-1$
throw createMissingMandatoryAttributeException("pageId", config.getContributor().getName()); //$NON-NLS-1$
}
// Read the sub elements of the extension
IConfigurationElement[] children = config != null ? config.getChildren() : null;
// The "enablement" element is the only expected one
if (children != null && children.length > 0) {
expression = ExpressionConverter.getDefault().perform(children[0]);
}
// Read the "insertBefore" attribute
insertBefore = config != null ? config.getAttribute("insertBefore") : null; //$NON-NLS-1$
// Read the "insertAfter" attribute
insertAfter = config != null ? config.getAttribute("insertAfter") : null; //$NON-NLS-1$
}
/**
* Returns the editor page id which is associated with this binding.
*
* @return The editor page id.
*/
public String getPageId() {
return pageId;
}
/**
* Returns the enablement expression which is associated with this binding.
*
* @return The enablement expression or <code>null</code>.
*/
public Expression getEnablement() {
return expression;
}
/**
* Returns the "insertBefore" property for this binding.
*
* @return The "insertBefore" property or an empty string.
*/
public String getInsertBefore() {
return insertBefore != null ? insertBefore.trim() : ""; //$NON-NLS-1$
}
/**
* Returns the "insertAfter" property for this binding.
*
* @return The "insertAfter" property or an empty string.
*/
public String getInsertAfter() {
return insertAfter != null ? insertAfter.trim() : ""; //$NON-NLS-1$
}
}
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