Copyright (c) 2000, 2015 IBM Corporation and others.
This program and the accompanying materials
are made available under the terms of the Eclipse Public License 2.0
which accompanies this distribution, and is available at
https://www.eclipse.org/legal/epl-2.0/
SPDX-License-Identifier: EPL-2.0
Contributors:
    IBM Corporation - initial API and implementation
/*******************************************************************************
 * Copyright (c) 2000, 2015 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jdt.internal.launching;


import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.debug.core.ILaunchConfiguration;
import org.eclipse.jdt.launching.IRuntimeClasspathEntry;
import org.eclipse.jdt.launching.IRuntimeClasspathProvider;

Proxy to a runtime classpath provider extension.
/**
 * Proxy to a runtime classpath provider extension.
 */
public class RuntimeClasspathProvider implements IRuntimeClasspathProvider {

	private IConfigurationElement fConfigurationElement;

	private IRuntimeClasspathProvider fDelegate;

	
Constructs a new resolver on the given configuration element
Params:
element – the element/**
	 * Constructs a new resolver on the given configuration element
	 * @param element the element
	 */
	public RuntimeClasspathProvider(IConfigurationElement element) {
		fConfigurationElement = element;
	}

	
Returns the resolver delegate (and creates if required)
Throws:
CoreException – if an error occurs
Returns:
the provider/**
	 * Returns the resolver delegate (and creates if required)
	 * @return the provider
	 * @throws CoreException if an error occurs
	 */
	protected IRuntimeClasspathProvider getProvider() throws CoreException {
		if (fDelegate == null) {
			fDelegate = (IRuntimeClasspathProvider)fConfigurationElement.createExecutableExtension("class"); //$NON-NLS-1$
		}
		return fDelegate;
	}

	public String getIdentifier() {
		return fConfigurationElement.getAttribute("id"); //$NON-NLS-1$
	}
	
See Also:
computeUnresolvedClasspath.computeUnresolvedClasspath(ILaunchConfiguration)/**
	 * @see IRuntimeClasspathProvider#computeUnresolvedClasspath(ILaunchConfiguration)
	 */
	@Override
	public IRuntimeClasspathEntry[] computeUnresolvedClasspath(ILaunchConfiguration configuration) throws CoreException {
		return getProvider().computeUnresolvedClasspath(configuration);
	}

	
See Also:
resolveClasspath.resolveClasspath(IRuntimeClasspathEntry[], ILaunchConfiguration)/**
	 * @see IRuntimeClasspathProvider#resolveClasspath(IRuntimeClasspathEntry[], ILaunchConfiguration)
	 */
	@Override
	public IRuntimeClasspathEntry[] resolveClasspath(IRuntimeClasspathEntry[] entries, ILaunchConfiguration configuration) throws CoreException {
		return getProvider().resolveClasspath(entries, configuration);
	}

}